Changing front

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ewandor committed 2023-01-16 17:49:38 +01:00
1 parent 0b8a93b256
commit 4fe4be7730
48586 files changed
+4725790 -17464

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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.clear = clear;
exports.clearPath = clearPath;
exports.clearScope = clearScope;
exports.scope = exports.path = void 0;
let path = new WeakMap();
exports.path = path;
let scope = new WeakMap();
exports.scope = scope;
function clear() {
clearPath();
clearScope();
}
function clearPath() {
exports.path = path = new WeakMap();
}
function clearScope() {
exports.scope = scope = new WeakMap();
}
//# sourceMappingURL=cache.js.map
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{"version":3,"names":["path","WeakMap","scope","clear","clearPath","clearScope"],"sources":["../src/cache.ts"],"sourcesContent":["export let path = new WeakMap();\nexport let scope = new WeakMap();\n\nexport function clear() {\n clearPath();\n clearScope();\n}\n\nexport function clearPath() {\n path = new WeakMap();\n}\n\nexport function clearScope() {\n scope = new WeakMap();\n}\n"],"mappings":";;;;;;;;;AAAO,IAAIA,IAAI,GAAG,IAAIC,OAAO,EAAE;AAAC;AACzB,IAAIC,KAAK,GAAG,IAAID,OAAO,EAAE;AAAC;AAE1B,SAASE,KAAK,GAAG;EACtBC,SAAS,EAAE;EACXC,UAAU,EAAE;AACd;AAEO,SAASD,SAAS,GAAG;EAC1B,eAAAJ,IAAI,GAAG,IAAIC,OAAO,EAAE;AACtB;AAEO,SAASI,UAAU,GAAG;EAC3B,gBAAAH,KAAK,GAAG,IAAID,OAAO,EAAE;AACvB"}
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _path = require("./path");
var _t = require("@babel/types");
const {
VISITOR_KEYS
} = _t;
class TraversalContext {
constructor(scope, opts, state, parentPath) {
this.queue = null;
this.priorityQueue = null;
this.parentPath = parentPath;
this.scope = scope;
this.state = state;
this.opts = opts;
}
shouldVisit(node) {
const opts = this.opts;
if (opts.enter || opts.exit) return true;
if (opts[node.type]) return true;
const keys = VISITOR_KEYS[node.type];
if (!(keys != null && keys.length)) return false;
for (const key of keys) {
if (
node[key]) {
return true;
}
}
return false;
}
create(node, container, key, listKey) {
return _path.default.get({
parentPath: this.parentPath,
parent: node,
container,
key: key,
listKey
});
}
maybeQueue(path, notPriority) {
if (this.queue) {
if (notPriority) {
this.queue.push(path);
} else {
this.priorityQueue.push(path);
}
}
}
visitMultiple(container, parent, listKey) {
if (container.length === 0) return false;
const queue = [];
for (let key = 0; key < container.length; key++) {
const node = container[key];
if (node && this.shouldVisit(node)) {
queue.push(this.create(parent, container, key, listKey));
}
}
return this.visitQueue(queue);
}
visitSingle(node, key) {
if (this.shouldVisit(
node[key])) {
return this.visitQueue([this.create(node, node, key)]);
} else {
return false;
}
}
visitQueue(queue) {
this.queue = queue;
this.priorityQueue = [];
const visited = new WeakSet();
let stop = false;
for (const path of queue) {
path.resync();
if (path.contexts.length === 0 || path.contexts[path.contexts.length - 1] !== this) {
path.pushContext(this);
}
if (path.key === null) continue;
const {
node
} = path;
if (visited.has(node)) continue;
if (node) visited.add(node);
if (path.visit()) {
stop = true;
break;
}
if (this.priorityQueue.length) {
stop = this.visitQueue(this.priorityQueue);
this.priorityQueue = [];
this.queue = queue;
if (stop) break;
}
}
for (const path of queue) {
path.popContext();
}
this.queue = null;
return stop;
}
visit(node, key) {
const nodes = node[key];
if (!nodes) return false;
if (Array.isArray(nodes)) {
return this.visitMultiple(nodes, node, key);
} else {
return this.visitSingle(node, key);
}
}
}
exports.default = TraversalContext;
//# sourceMappingURL=context.js.map
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{"version":3,"names":["VISITOR_KEYS","TraversalContext","constructor","scope","opts","state","parentPath","queue","priorityQueue","shouldVisit","node","enter","exit","type","keys","length","key","create","container","listKey","NodePath","get","parent","maybeQueue","path","notPriority","push","visitMultiple","visitQueue","visitSingle","visited","WeakSet","stop","resync","contexts","pushContext","has","add","visit","popContext","nodes","Array","isArray"],"sources":["../src/context.ts"],"sourcesContent":["import NodePath from \"./path\";\nimport { VISITOR_KEYS } from \"@babel/types\";\nimport type Scope from \"./scope\";\nimport type { TraverseOptions } from \".\";\nimport type * as t from \"@babel/types\";\nimport type { Visitor } from \"./types\";\n\nexport default class TraversalContext<S = unknown> {\n constructor(\n scope: Scope,\n opts: TraverseOptions,\n state: S,\n parentPath: NodePath,\n ) {\n this.parentPath = parentPath;\n this.scope = scope;\n this.state = state;\n this.opts = opts;\n }\n\n declare parentPath: NodePath;\n declare scope: Scope;\n declare state: S;\n declare opts: TraverseOptions;\n queue: Array<NodePath> | null = null;\n priorityQueue: Array<NodePath> | null = null;\n\n /**\n * This method does a simple check to determine whether or not we really need to attempt\n * visit a node. This will prevent us from constructing a NodePath.\n */\n\n shouldVisit(node: t.Node): boolean {\n const opts = this.opts as Visitor;\n if (opts.enter || opts.exit) return true;\n\n // check if we have a visitor for this node\n if (opts[node.type]) return true;\n\n // check if we're going to traverse into this node\n const keys: Array<string> | undefined = VISITOR_KEYS[node.type];\n if (!keys?.length) return false;\n\n // we need to traverse into this node so ensure that it has children to traverse into!\n for (const key of keys) {\n if (\n // @ts-expect-error key is from visitor keys\n node[key]\n ) {\n return true;\n }\n }\n\n return false;\n }\n\n create(\n node: t.Node,\n container: t.Node | t.Node[],\n key: string | number,\n listKey?: string,\n ): NodePath {\n // We don't need to `.setContext()` here, since `.visitQueue()` already\n // calls `.pushContext`.\n return NodePath.get({\n parentPath: this.parentPath,\n parent: node,\n container,\n key: key,\n listKey,\n });\n }\n\n maybeQueue(path: NodePath, notPriority?: boolean) {\n if (this.queue) {\n if (notPriority) {\n this.queue.push(path);\n } else {\n this.priorityQueue.push(path);\n }\n }\n }\n\n visitMultiple(container: t.Node[], parent: t.Node, listKey: string) {\n // nothing to traverse!\n if (container.length === 0) return false;\n\n const queue = [];\n\n // build up initial queue\n for (let key = 0; key < container.length; key++) {\n const node = container[key];\n if (node && this.shouldVisit(node)) {\n queue.push(this.create(parent, container, key, listKey));\n }\n }\n\n return this.visitQueue(queue);\n }\n\n visitSingle(node: t.Node, key: string): boolean {\n if (\n this.shouldVisit(\n // @ts-expect-error key may not index node\n node[key],\n )\n ) {\n return this.visitQueue([this.create(node, node, key)]);\n } else {\n return false;\n }\n }\n\n visitQueue(queue: Array<NodePath>): boolean {\n // set queue\n this.queue = queue;\n this.priorityQueue = [];\n\n const visited = new WeakSet();\n let stop = false;\n\n // visit the queue\n for (const path of queue) {\n path.resync();\n\n if (\n path.contexts.length === 0 ||\n path.contexts[path.contexts.length - 1] !== this\n ) {\n // The context might already have been pushed when this path was inserted and queued.\n // If we always re-pushed here, we could get duplicates and risk leaving contexts\n // on the stack after the traversal has completed, which could break things.\n path.pushContext(this);\n }\n\n // this path no longer belongs to the tree\n if (path.key === null) continue;\n\n // ensure we don't visit the same node twice\n const { node } = path;\n if (visited.has(node)) continue;\n if (node) visited.add(node);\n\n if (path.visit()) {\n stop = true;\n break;\n }\n\n if (this.priorityQueue.length) {\n stop = this.visitQueue(this.priorityQueue);\n this.priorityQueue = [];\n this.queue = queue;\n if (stop) break;\n }\n }\n\n // clear queue\n for (const path of queue) {\n path.popContext();\n }\n\n // clear queue\n this.queue = null;\n\n return stop;\n }\n\n visit(node: t.Node, key: string) {\n // @ts-expect-error key may not index node\n const nodes = node[key] as t.Node | t.Node[] | null;\n Line truncated
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
class Hub {
getCode() {}
getScope() {}
addHelper() {
throw new Error("Helpers are not supported by the default hub.");
}
buildError(node, msg, Error = TypeError) {
return new Error(msg);
}
}
exports.default = Hub;
//# sourceMappingURL=hub.js.map
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{"version":3,"names":["Hub","getCode","getScope","addHelper","Error","buildError","node","msg","TypeError"],"sources":["../src/hub.ts"],"sourcesContent":["import type Scope from \"./scope\";\nimport type { Node } from \"@babel/types\";\n\nexport interface HubInterface {\n getCode(): string | void;\n getScope(): Scope | void;\n addHelper(name: string): any;\n buildError(node: Node, msg: string, Error: new () => Error): Error;\n}\n\nexport default class Hub implements HubInterface {\n getCode() {}\n\n getScope() {}\n\n addHelper() {\n throw new Error(\"Helpers are not supported by the default hub.\");\n }\n\n buildError(node: Node, msg: string, Error = TypeError): Error {\n return new Error(msg);\n }\n}\n"],"mappings":";;;;;;AAUe,MAAMA,GAAG,CAAyB;EAC/CC,OAAO,GAAG,CAAC;EAEXC,QAAQ,GAAG,CAAC;EAEZC,SAAS,GAAG;IACV,MAAM,IAAIC,KAAK,CAAC,+CAA+C,CAAC;EAClE;EAEAC,UAAU,CAACC,IAAU,EAAEC,GAAW,EAAEH,KAAK,GAAGI,SAAS,EAAS;IAC5D,OAAO,IAAIJ,KAAK,CAACG,GAAG,CAAC;EACvB;AACF;AAAC"}
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
Object.defineProperty(exports, "Hub", {
enumerable: true,
get: function () {
return _hub.default;
}
});
Object.defineProperty(exports, "NodePath", {
enumerable: true,
get: function () {
return _path.default;
}
});
Object.defineProperty(exports, "Scope", {
enumerable: true,
get: function () {
return _scope.default;
}
});
exports.visitors = exports.default = void 0;
var visitors = require("./visitors");
exports.visitors = visitors;
var _t = require("@babel/types");
var cache = require("./cache");
var _traverseNode = require("./traverse-node");
var _path = require("./path");
var _scope = require("./scope");
var _hub = require("./hub");
const {
VISITOR_KEYS,
removeProperties,
traverseFast
} = _t;
function traverse(parent,
opts = {}, scope, state, parentPath) {
if (!parent) return;
if (!opts.noScope && !scope) {
if (parent.type !== "Program" && parent.type !== "File") {
throw new Error("You must pass a scope and parentPath unless traversing a Program/File. " + `Instead of that you tried to traverse a ${parent.type} node without ` + "passing scope and parentPath.");
}
}
if (!VISITOR_KEYS[parent.type]) {
return;
}
visitors.explode(opts);
(0, _traverseNode.traverseNode)(parent, opts, scope, state, parentPath);
}
var _default = traverse;
exports.default = _default;
traverse.visitors = visitors;
traverse.verify = visitors.verify;
traverse.explode = visitors.explode;
traverse.cheap = function (node, enter) {
return traverseFast(node, enter);
};
traverse.node = function (node, opts, scope, state, path, skipKeys) {
(0, _traverseNode.traverseNode)(node, opts, scope, state, path, skipKeys);
};
traverse.clearNode = function (node, opts) {
removeProperties(node, opts);
cache.path.delete(node);
};
traverse.removeProperties = function (tree, opts) {
traverseFast(tree, traverse.clearNode, opts);
return tree;
};
function hasDenylistedType(path, state) {
if (path.node.type === state.type) {
state.has = true;
path.stop();
}
}
traverse.hasType = function (tree, type, denylistTypes) {
if (denylistTypes != null && denylistTypes.includes(tree.type)) return false;
if (tree.type === type) return true;
const state = {
has: false,
type: type
};
traverse(tree, {
noScope: true,
denylist: denylistTypes,
enter: hasDenylistedType
}, null, state);
return state.has;
};
traverse.cache = cache;
//# sourceMappingURL=index.js.map
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{"version":3,"names":["VISITOR_KEYS","removeProperties","traverseFast","traverse","parent","opts","scope","state","parentPath","noScope","type","Error","visitors","explode","traverseNode","verify","cheap","node","enter","path","skipKeys","clearNode","cache","delete","tree","hasDenylistedType","has","stop","hasType","denylistTypes","includes","denylist"],"sources":["../src/index.ts"],"sourcesContent":["import * as visitors from \"./visitors\";\nimport {\n VISITOR_KEYS,\n removeProperties,\n type RemovePropertiesOptions,\n traverseFast,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport * as cache from \"./cache\";\nimport type NodePath from \"./path\";\nimport type { default as Scope, Binding } from \"./scope\";\nimport type { Visitor } from \"./types\";\nimport { traverseNode } from \"./traverse-node\";\n\nexport type { Visitor, Binding };\nexport { default as NodePath } from \"./path\";\nexport { default as Scope } from \"./scope\";\nexport { default as Hub } from \"./hub\";\nexport type { HubInterface } from \"./hub\";\n\nexport { visitors };\n\nexport type TraverseOptions<S = t.Node> = {\n scope?: Scope;\n noScope?: boolean;\n denylist?: string[];\n} & Visitor<S>;\n\nfunction traverse<S>(\n parent: t.Node,\n opts: TraverseOptions<S>,\n scope: Scope | undefined,\n state: S,\n parentPath?: NodePath,\n): void;\n\nfunction traverse(\n parent: t.Node,\n opts: TraverseOptions,\n scope?: Scope,\n state?: any,\n parentPath?: NodePath,\n): void;\n\nfunction traverse<Options extends TraverseOptions>(\n parent: t.Node,\n // @ts-expect-error provide {} as default value for Options\n opts: Options = {},\n scope?: Scope,\n state?: any,\n parentPath?: NodePath,\n) {\n if (!parent) return;\n\n if (!opts.noScope && !scope) {\n if (parent.type !== \"Program\" && parent.type !== \"File\") {\n throw new Error(\n \"You must pass a scope and parentPath unless traversing a Program/File. \" +\n `Instead of that you tried to traverse a ${parent.type} node without ` +\n \"passing scope and parentPath.\",\n );\n }\n }\n\n if (!VISITOR_KEYS[parent.type]) {\n return;\n }\n\n visitors.explode(opts as Visitor);\n\n traverseNode(parent, opts, scope, state, parentPath);\n}\n\nexport default traverse;\n\ntraverse.visitors = visitors;\ntraverse.verify = visitors.verify;\ntraverse.explode = visitors.explode;\n\ntraverse.cheap = function (node: t.Node, enter: (node: t.Node) => void) {\n return traverseFast(node, enter);\n};\n\ntraverse.node = function (\n node: t.Node,\n opts: TraverseOptions,\n scope?: Scope,\n state?: any,\n path?: NodePath,\n skipKeys?: Record<string, boolean>,\n) {\n traverseNode(node, opts, scope, state, path, skipKeys);\n // traverse.node always returns undefined\n};\n\ntraverse.clearNode = function (node: t.Node, opts?: RemovePropertiesOptions) {\n removeProperties(node, opts);\n\n cache.path.delete(node);\n};\n\ntraverse.removeProperties = function (\n tree: t.Node,\n opts?: RemovePropertiesOptions,\n) {\n traverseFast(tree, traverse.clearNode, opts);\n return tree;\n};\n\ntype HasDenylistedTypeState = {\n has: boolean;\n type: t.Node[\"type\"];\n};\nfunction hasDenylistedType(path: NodePath, state: HasDenylistedTypeState) {\n if (path.node.type === state.type) {\n state.has = true;\n path.stop();\n }\n}\n\ntraverse.hasType = function (\n tree: t.Node,\n type: t.Node[\"type\"],\n denylistTypes?: Array<string>,\n): boolean {\n // the node we're searching in is denylisted\n if (denylistTypes?.includes(tree.type)) return false;\n\n // the type we're looking for is the same as the passed node\n if (tree.type === type) return true;\n\n const state: HasDenylistedTypeState = {\n has: false,\n type: type,\n };\n\n traverse(\n tree,\n {\n noScope: true,\n denylist: denylistTypes,\n enter: hasDenylistedType,\n },\n null,\n state,\n );\n\n return state.has;\n};\n\ntraverse.cache = cache;\n"],"mappings":";;;;;;;;;;;;;;;;;;;;;;;;AAAA;AAAuC;AACvC;AAOA;AAIA;AAGA;AACA;AACA;AAAuC;EAfrCA,YAAY;EACZC,gBAAgB;EAEhBC;AAAY;AAuCd,SAASC,QAAQ,CACfC,MAAc;AAEdC,IAAa,GAAG,CAAC,CAAC,EAClBC,KAAa,EACbC,KAAW,EACXC,UAAqB,EACrB;EACA,IAAI,CAACJ,MAAM,EAAE;EAEb,IAAI,CAACC,IAAI,CAACI,OAAO,IAAI,CAACH,KAAK,EAAE;IAC3B,IAAIF,MAAM,CAACM,IAAI,KAAK,SAAS,IAAIN,MAAM,CAACM,IAAI,KAAK,MAAM,EAAE;MACvD,MAAM,IAAIC,KAAK,CACb,yEAAyE,GACtE,2CAA0CP,MAAM,CAACM,IAAK,gBAAe,GACtE,+BAA+B,CAClC;IACH;EACF;EAEA,IAAI,CAACV,YAAY,CAACI,MAAM,CAACM,IAAI,CAAC,EAAE;IAC9B;EACF;EAEAE,QAAQ,CAACC,OAAO,CAACR,IAAI,CAAY;EAEjC,IAAAS,0BAAY,EAACV,MAAM,EAAEC,IAAI,EAAEC,KAAK,EAAEC,KAAK,EAAEC,UAAU,CAAC;AACtD;AAAC,eAEcL,QAAQ;AAAA;AAEvBA,QAAQ,CAACS,QAAQ,GAAGA,QAAQ;AAC5BT,QAAQ,CAACY,MAAM,GAAGH,QAAQ,CAACG,MAAM;AACjCZ,QAAQ,CAACU,OAAO,GAAGD,QAAQ,CAACC,OAAO;AAEnCV,QAAQ,CAACa,KAAK,GAAG,UAAUC,IAAY,EAAEC,KAA6B,EAAE;EACtE,OAAOhB,YAAY,CAACe,IAAI,EAAEC,KAAK,CAAC;AAClC,CAAC;AAEDf,QAAQ,CAACc,IAAI,GAAG,UACdA,IAAY,EACZZ,IAAqB,EACrBC,KAAa,EACbC,KAALine truncated
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.find = find;
exports.findParent = findParent;
exports.getAncestry = getAncestry;
exports.getDeepestCommonAncestorFrom = getDeepestCommonAncestorFrom;
exports.getEarliestCommonAncestorFrom = getEarliestCommonAncestorFrom;
exports.getFunctionParent = getFunctionParent;
exports.getStatementParent = getStatementParent;
exports.inType = inType;
exports.isAncestor = isAncestor;
exports.isDescendant = isDescendant;
var _t = require("@babel/types");
const {
VISITOR_KEYS
} = _t;
function findParent(callback) {
let path = this;
while (path = path.parentPath) {
if (callback(path)) return path;
}
return null;
}
function find(callback) {
let path = this;
do {
if (callback(path)) return path;
} while (path = path.parentPath);
return null;
}
function getFunctionParent() {
return this.findParent(p => p.isFunction());
}
function getStatementParent() {
let path = this;
do {
if (!path.parentPath || Array.isArray(path.container) && path.isStatement()) {
break;
} else {
path = path.parentPath;
}
} while (path);
if (path && (path.isProgram() || path.isFile())) {
throw new Error("File/Program node, we can't possibly find a statement parent to this");
}
return path;
}
function getEarliestCommonAncestorFrom(paths) {
return this.getDeepestCommonAncestorFrom(paths, function (deepest, i, ancestries) {
let earliest;
const keys = VISITOR_KEYS[deepest.type];
for (const ancestry of ancestries) {
const path = ancestry[i + 1];
if (!earliest) {
earliest = path;
continue;
}
if (path.listKey && earliest.listKey === path.listKey) {
if (path.key < earliest.key) {
earliest = path;
continue;
}
}
const earliestKeyIndex = keys.indexOf(earliest.parentKey);
const currentKeyIndex = keys.indexOf(path.parentKey);
if (earliestKeyIndex > currentKeyIndex) {
earliest = path;
}
}
return earliest;
});
}
function getDeepestCommonAncestorFrom(paths, filter) {
if (!paths.length) {
return this;
}
if (paths.length === 1) {
return paths[0];
}
let minDepth = Infinity;
let lastCommonIndex, lastCommon;
const ancestries = paths.map(path => {
const ancestry = [];
do {
ancestry.unshift(path);
} while ((path = path.parentPath) && path !== this);
if (ancestry.length < minDepth) {
minDepth = ancestry.length;
}
return ancestry;
});
const first = ancestries[0];
depthLoop: for (let i = 0; i < minDepth; i++) {
const shouldMatch = first[i];
for (const ancestry of ancestries) {
if (ancestry[i] !== shouldMatch) {
break depthLoop;
}
}
lastCommonIndex = i;
lastCommon = shouldMatch;
}
if (lastCommon) {
if (filter) {
return filter(lastCommon, lastCommonIndex, ancestries);
} else {
return lastCommon;
}
} else {
throw new Error("Couldn't find intersection");
}
}
function getAncestry() {
let path = this;
const paths = [];
do {
paths.push(path);
} while (path = path.parentPath);
return paths;
}
function isAncestor(maybeDescendant) {
return maybeDescendant.isDescendant(this);
}
function isDescendant(maybeAncestor) {
return !!this.findParent(parent => parent === maybeAncestor);
}
function inType(...candidateTypes) {
let path = this;
while (path) {
for (const type of candidateTypes) {
if (path.node.type === type) return true;
}
path = path.parentPath;
}
return false;
}
//# sourceMappingURL=ancestry.js.map
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{"version":3,"names":["VISITOR_KEYS","findParent","callback","path","parentPath","find","getFunctionParent","p","isFunction","getStatementParent","Array","isArray","container","isStatement","isProgram","isFile","Error","getEarliestCommonAncestorFrom","paths","getDeepestCommonAncestorFrom","deepest","i","ancestries","earliest","keys","type","ancestry","listKey","key","earliestKeyIndex","indexOf","parentKey","currentKeyIndex","filter","length","minDepth","Infinity","lastCommonIndex","lastCommon","map","unshift","first","depthLoop","shouldMatch","getAncestry","push","isAncestor","maybeDescendant","isDescendant","maybeAncestor","parent","inType","candidateTypes","node"],"sources":["../../src/path/ancestry.ts"],"sourcesContent":["// This file contains that retrieve or validate anything related to the current paths ancestry.\n\nimport { VISITOR_KEYS } from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport type NodePath from \"./index\";\n\n/**\n * Starting at the parent path of the current `NodePath` and going up the\n * tree, return the first `NodePath` that causes the provided `callback`\n * to return a truthy value, or `null` if the `callback` never returns a\n * truthy value.\n */\n\nexport function findParent(\n this: NodePath,\n callback: (path: NodePath) => boolean,\n): NodePath | null {\n let path = this;\n while ((path = path.parentPath)) {\n if (callback(path)) return path;\n }\n return null;\n}\n\n/**\n * Starting at current `NodePath` and going up the tree, return the first\n * `NodePath` that causes the provided `callback` to return a truthy value,\n * or `null` if the `callback` never returns a truthy value.\n */\n\nexport function find(\n this: NodePath,\n callback: (path: NodePath) => boolean,\n): NodePath | null {\n let path = this;\n do {\n if (callback(path)) return path;\n } while ((path = path.parentPath));\n return null;\n}\n\n/**\n * Get the parent function of the current path.\n */\n\nexport function getFunctionParent(this: NodePath): NodePath<t.Function> | null {\n return this.findParent(p => p.isFunction()) as NodePath<t.Function> | null;\n}\n\n/**\n * Walk up the tree until we hit a parent node path in a list.\n */\n\nexport function getStatementParent(this: NodePath): NodePath<t.Statement> {\n let path = this;\n\n do {\n if (\n !path.parentPath ||\n (Array.isArray(path.container) && path.isStatement())\n ) {\n break;\n } else {\n path = path.parentPath;\n }\n } while (path);\n\n if (path && (path.isProgram() || path.isFile())) {\n throw new Error(\n \"File/Program node, we can't possibly find a statement parent to this\",\n );\n }\n\n return path as NodePath<t.Statement>;\n}\n\n/**\n * Get the deepest common ancestor and then from it, get the earliest relationship path\n * to that ancestor.\n *\n * Earliest is defined as being \"before\" all the other nodes in terms of list container\n * position and visiting key.\n */\n\nexport function getEarliestCommonAncestorFrom(\n this: NodePath,\n paths: Array<NodePath>,\n): NodePath {\n return this.getDeepestCommonAncestorFrom(\n paths,\n function (deepest, i, ancestries) {\n let earliest;\n const keys = VISITOR_KEYS[deepest.type];\n\n for (const ancestry of ancestries) {\n const path = ancestry[i + 1];\n\n // first path\n if (!earliest) {\n earliest = path;\n continue;\n }\n\n // handle containers\n if (path.listKey && earliest.listKey === path.listKey) {\n // we're in the same container so check if we're earlier\n if (path.key < earliest.key) {\n earliest = path;\n continue;\n }\n }\n\n // handle keys\n const earliestKeyIndex = keys.indexOf(earliest.parentKey);\n const currentKeyIndex = keys.indexOf(path.parentKey as string);\n if (earliestKeyIndex > currentKeyIndex) {\n // key appears before so it's earlier\n earliest = path;\n }\n }\n\n return earliest;\n },\n );\n}\n\n/**\n * Get the earliest path in the tree where the provided `paths` intersect.\n *\n * TODO: Possible optimisation target.\n */\n\nexport function getDeepestCommonAncestorFrom(\n this: NodePath,\n paths: Array<NodePath>,\n filter?: (deepest: NodePath, i: number, ancestries: NodePath[][]) => NodePath,\n): NodePath {\n if (!paths.length) {\n return this;\n }\n\n if (paths.length === 1) {\n return paths[0];\n }\n\n // minimum depth of the tree so we know the highest node\n let minDepth = Infinity;\n\n // last common ancestor\n let lastCommonIndex, lastCommon;\n\n // get the ancestors of the path, breaking when the parent exceeds ourselves\n const ancestries = paths.map(path => {\n const ancestry: NodePath[] = [];\n\n do {\n ancestry.unshift(path);\n } while ((path = path.parentPath) && path !== this);\n\n // save min depth to avoid going too far in\n Line truncated
+40
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@@ -0,0 +1,40 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.addComment = addComment;
exports.addComments = addComments;
exports.shareCommentsWithSiblings = shareCommentsWithSiblings;
var _t = require("@babel/types");
const {
addComment: _addComment,
addComments: _addComments
} = _t;
function shareCommentsWithSiblings() {
if (typeof this.key === "string") return;
const node = this.node;
if (!node) return;
const trailing = node.trailingComments;
const leading = node.leadingComments;
if (!trailing && !leading) return;
const prev = this.getSibling(this.key - 1);
const next = this.getSibling(this.key + 1);
const hasPrev = Boolean(prev.node);
const hasNext = Boolean(next.node);
if (hasPrev && !hasNext) {
prev.addComments("trailing", trailing);
} else if (hasNext && !hasPrev) {
next.addComments("leading", leading);
}
}
function addComment(type, content, line) {
_addComment(this.node, type, content, line);
}
function addComments(type, comments) {
_addComments(this.node, type, comments);
}
//# sourceMappingURL=comments.js.map
+1
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@@ -0,0 +1 @@
{"version":3,"names":["addComment","_addComment","addComments","_addComments","shareCommentsWithSiblings","key","node","trailing","trailingComments","leading","leadingComments","prev","getSibling","next","hasPrev","Boolean","hasNext","type","content","line","comments"],"sources":["../../src/path/comments.ts"],"sourcesContent":["// This file contains methods responsible for dealing with comments.\nimport type * as t from \"@babel/types\";\nimport type NodePath from \"./index\";\nimport {\n addComment as _addComment,\n addComments as _addComments,\n} from \"@babel/types\";\n\n/**\n * Share comments amongst siblings.\n */\n\nexport function shareCommentsWithSiblings(this: NodePath) {\n // NOTE: this assumes numbered keys\n if (typeof this.key === \"string\") return;\n\n const node = this.node;\n if (!node) return;\n\n const trailing = node.trailingComments;\n const leading = node.leadingComments;\n if (!trailing && !leading) return;\n\n const prev = this.getSibling(this.key - 1);\n const next = this.getSibling(this.key + 1);\n const hasPrev = Boolean(prev.node);\n const hasNext = Boolean(next.node);\n if (hasPrev && !hasNext) {\n prev.addComments(\"trailing\", trailing);\n } else if (hasNext && !hasPrev) {\n next.addComments(\"leading\", leading);\n }\n}\n\nexport function addComment(\n this: NodePath,\n type: t.CommentTypeShorthand,\n content: string,\n line?: boolean,\n) {\n _addComment(this.node, type, content, line);\n}\n\n/**\n * Give node `comments` of the specified `type`.\n */\n\nexport function addComments(\n this: NodePath,\n type: t.CommentTypeShorthand,\n comments: t.Comment[],\n) {\n _addComments(this.node, type, comments);\n}\n"],"mappings":";;;;;;;;AAGA;AAGsB;EAFpBA,UAAU,EAAIC,WAAW;EACzBC,WAAW,EAAIC;AAAY;;AAOtB,SAASC,yBAAyB,GAAiB;EAExD,IAAI,OAAO,IAAI,CAACC,GAAG,KAAK,QAAQ,EAAE;EAElC,MAAMC,IAAI,GAAG,IAAI,CAACA,IAAI;EACtB,IAAI,CAACA,IAAI,EAAE;EAEX,MAAMC,QAAQ,GAAGD,IAAI,CAACE,gBAAgB;EACtC,MAAMC,OAAO,GAAGH,IAAI,CAACI,eAAe;EACpC,IAAI,CAACH,QAAQ,IAAI,CAACE,OAAO,EAAE;EAE3B,MAAME,IAAI,GAAG,IAAI,CAACC,UAAU,CAAC,IAAI,CAACP,GAAG,GAAG,CAAC,CAAC;EAC1C,MAAMQ,IAAI,GAAG,IAAI,CAACD,UAAU,CAAC,IAAI,CAACP,GAAG,GAAG,CAAC,CAAC;EAC1C,MAAMS,OAAO,GAAGC,OAAO,CAACJ,IAAI,CAACL,IAAI,CAAC;EAClC,MAAMU,OAAO,GAAGD,OAAO,CAACF,IAAI,CAACP,IAAI,CAAC;EAClC,IAAIQ,OAAO,IAAI,CAACE,OAAO,EAAE;IACvBL,IAAI,CAACT,WAAW,CAAC,UAAU,EAAEK,QAAQ,CAAC;EACxC,CAAC,MAAM,IAAIS,OAAO,IAAI,CAACF,OAAO,EAAE;IAC9BD,IAAI,CAACX,WAAW,CAAC,SAAS,EAAEO,OAAO,CAAC;EACtC;AACF;AAEO,SAAST,UAAU,CAExBiB,IAA4B,EAC5BC,OAAe,EACfC,IAAc,EACd;EACAlB,WAAW,CAAC,IAAI,CAACK,IAAI,EAAEW,IAAI,EAAEC,OAAO,EAAEC,IAAI,CAAC;AAC7C;;AAMO,SAASjB,WAAW,CAEzBe,IAA4B,EAC5BG,QAAqB,EACrB;EACAjB,YAAY,CAAC,IAAI,CAACG,IAAI,EAAEW,IAAI,EAAEG,QAAQ,CAAC;AACzC"}
+232
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@@ -0,0 +1,232 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports._call = _call;
exports._getQueueContexts = _getQueueContexts;
exports._resyncKey = _resyncKey;
exports._resyncList = _resyncList;
exports._resyncParent = _resyncParent;
exports._resyncRemoved = _resyncRemoved;
exports.call = call;
exports.isBlacklisted = exports.isDenylisted = isDenylisted;
exports.popContext = popContext;
exports.pushContext = pushContext;
exports.requeue = requeue;
exports.resync = resync;
exports.setContext = setContext;
exports.setKey = setKey;
exports.setScope = setScope;
exports.setup = setup;
exports.skip = skip;
exports.skipKey = skipKey;
exports.stop = stop;
exports.visit = visit;
var _traverseNode = require("../traverse-node");
var _index = require("./index");
function call(key) {
const opts = this.opts;
this.debug(key);
if (this.node) {
if (this._call(opts[key])) return true;
}
if (this.node) {
return this._call(opts[this.node.type] && opts[this.node.type][key]);
}
return false;
}
function _call(fns) {
if (!fns) return false;
for (const fn of fns) {
if (!fn) continue;
const node = this.node;
if (!node) return true;
const ret = fn.call(this.state, this, this.state);
if (ret && typeof ret === "object" && typeof ret.then === "function") {
throw new Error(`You appear to be using a plugin with an async traversal visitor, ` + `which your current version of Babel does not support. ` + `If you're using a published plugin, you may need to upgrade ` + `your @babel/core version.`);
}
if (ret) {
throw new Error(`Unexpected return value from visitor method ${fn}`);
}
if (this.node !== node) return true;
if (this._traverseFlags > 0) return true;
}
return false;
}
function isDenylisted() {
var _this$opts$denylist;
const denylist = (_this$opts$denylist = this.opts.denylist) != null ? _this$opts$denylist : this.opts.blacklist;
return denylist && denylist.indexOf(this.node.type) > -1;
}
function restoreContext(path, context) {
if (path.context !== context) {
path.context = context;
path.state = context.state;
path.opts = context.opts;
}
}
function visit() {
if (!this.node) {
return false;
}
if (this.isDenylisted()) {
return false;
}
if (this.opts.shouldSkip && this.opts.shouldSkip(this)) {
return false;
}
const currentContext = this.context;
if (this.shouldSkip || this.call("enter")) {
this.debug("Skip...");
return this.shouldStop;
}
restoreContext(this, currentContext);
this.debug("Recursing into...");
this.shouldStop = (0, _traverseNode.traverseNode)(this.node, this.opts, this.scope, this.state, this, this.skipKeys);
restoreContext(this, currentContext);
this.call("exit");
return this.shouldStop;
}
function skip() {
this.shouldSkip = true;
}
function skipKey(key) {
if (this.skipKeys == null) {
this.skipKeys = {};
}
this.skipKeys[key] = true;
}
function stop() {
this._traverseFlags |= _index.SHOULD_SKIP | _index.SHOULD_STOP;
}
function setScope() {
if (this.opts && this.opts.noScope) return;
let path = this.parentPath;
if (
(this.key === "key" || this.listKey === "decorators") && path.isMethod() ||
this.key === "discriminant" && path.isSwitchStatement()) {
path = path.parentPath;
}
let target;
while (path && !target) {
if (path.opts && path.opts.noScope) return;
target = path.scope;
path = path.parentPath;
}
this.scope = this.getScope(target);
if (this.scope) this.scope.init();
}
function setContext(context) {
if (this.skipKeys != null) {
this.skipKeys = {};
}
this._traverseFlags = 0;
if (context) {
this.context = context;
this.state = context.state;
this.opts = context.opts;
}
this.setScope();
return this;
}
function resync() {
if (this.removed) return;
this._resyncParent();
this._resyncList();
this._resyncKey();
}
function _resyncParent() {
if (this.parentPath) {
this.parent = this.parentPath.node;
}
}
function _resyncKey() {
if (!this.container) return;
if (this.node ===
this.container[this.key]) {
return;
}
if (Array.isArray(this.container)) {
for (let i = 0; i < this.container.length; i++) {
if (this.container[i] === this.node) {
return this.setKey(i);
}
}
} else {
for (const key of Object.keys(this.container)) {
if (this.container[key] === this.node) {
return this.setKey(key);
}
}
}
this.key = null;
}
function _resyncList() {
if (!this.parent || !this.inList) return;
const newContainer =
this.parent[this.listKey];
if (this.container === newContainer) return;
this.container = newContainer || null;
}
function _resyncRemoved() {
if (this.key == null || !this.container ||
this.container[this.key] !== this.node) {
this._markRemoved();
}
}
function popContext() {
this.contexts.pop();
if (this.contexts.length > 0) {
this.setContext(this.contexts[this.contexts.length - 1]);
} else {
this.setContext(undefined);
}
}
function pushContext(context) {
this.contexts.push(context);
this.setContext(context);
}
function setup(parentPath, container, listKey, key) {
this.listKey = listKey;
this.container = container;
this.parentPath = parentPath || this.parentPath;
this.setKey(key);
}
function setKey(key) {
var _this$node;
this.key = key;
this.node =
this.container[this.key];
this.type = (_this$node = this.node) == null ? void 0 : _this$node.type;
}
function requeue(pathToQueue = this) {
if (pathToQueue.removed) return;
;
const contexts = this.contexts;
for (const context of contexts) {
context.maybeQueue(pathToQueue);
}
}
function _getQueueContexts() {
let path = this;
let contexts = this.contexts;
while (!contexts.length) {
path = path.parentPath;
if (!path) break;
contexts = path.contexts;
}
return contexts;
}
//# sourceMappingURL=context.js.map
+1
View File
@@ -0,0 +1 @@
{"version":3,"names":["call","key","opts","debug","node","_call","type","fns","fn","ret","state","then","Error","_traverseFlags","isDenylisted","denylist","blacklist","indexOf","restoreContext","path","context","visit","shouldSkip","currentContext","shouldStop","traverseNode","scope","skipKeys","skip","skipKey","stop","SHOULD_SKIP","SHOULD_STOP","setScope","noScope","parentPath","listKey","isMethod","isSwitchStatement","target","getScope","init","setContext","resync","removed","_resyncParent","_resyncList","_resyncKey","parent","container","Array","isArray","i","length","setKey","Object","keys","inList","newContainer","_resyncRemoved","_markRemoved","popContext","contexts","pop","undefined","pushContext","push","setup","requeue","pathToQueue","maybeQueue","_getQueueContexts"],"sources":["../../src/path/context.ts"],"sourcesContent":["// This file contains methods responsible for maintaining a TraversalContext.\n\nimport { traverseNode } from \"../traverse-node\";\nimport { SHOULD_SKIP, SHOULD_STOP } from \"./index\";\nimport type TraversalContext from \"../context\";\nimport type NodePath from \"./index\";\nimport type * as t from \"@babel/types\";\n\nexport function call(this: NodePath, key: string): boolean {\n const opts = this.opts;\n\n this.debug(key);\n\n if (this.node) {\n if (this._call(opts[key])) return true;\n }\n\n if (this.node) {\n return this._call(opts[this.node.type] && opts[this.node.type][key]);\n }\n\n return false;\n}\n\nexport function _call(this: NodePath, fns?: Array<Function>): boolean {\n if (!fns) return false;\n\n for (const fn of fns) {\n if (!fn) continue;\n\n const node = this.node;\n if (!node) return true;\n\n const ret = fn.call(this.state, this, this.state);\n if (ret && typeof ret === \"object\" && typeof ret.then === \"function\") {\n throw new Error(\n `You appear to be using a plugin with an async traversal visitor, ` +\n `which your current version of Babel does not support. ` +\n `If you're using a published plugin, you may need to upgrade ` +\n `your @babel/core version.`,\n );\n }\n if (ret) {\n throw new Error(`Unexpected return value from visitor method ${fn}`);\n }\n\n // node has been replaced, it will have been requeued\n if (this.node !== node) return true;\n\n // this.shouldSkip || this.shouldStop || this.removed\n if (this._traverseFlags > 0) return true;\n }\n\n return false;\n}\n\nexport function isDenylisted(this: NodePath): boolean {\n const denylist = this.opts.denylist ?? this.opts.blacklist;\n return denylist && denylist.indexOf(this.node.type) > -1;\n}\n\n// TODO: Remove in Babel 8\nexport { isDenylisted as isBlacklisted };\n\nfunction restoreContext(path: NodePath, context: TraversalContext) {\n if (path.context !== context) {\n path.context = context;\n path.state = context.state;\n path.opts = context.opts;\n }\n}\n\nexport function visit(this: NodePath): boolean {\n if (!this.node) {\n return false;\n }\n\n if (this.isDenylisted()) {\n return false;\n }\n\n if (this.opts.shouldSkip && this.opts.shouldSkip(this)) {\n return false;\n }\n\n const currentContext = this.context;\n // Note: We need to check \"this.shouldSkip\" first because\n // another visitor can set it to true. Usually .shouldSkip is false\n // before calling the enter visitor, but it can be true in case of\n // a requeued node (e.g. by .replaceWith()) that is then marked\n // with .skip().\n if (this.shouldSkip || this.call(\"enter\")) {\n this.debug(\"Skip...\");\n return this.shouldStop;\n }\n restoreContext(this, currentContext);\n\n this.debug(\"Recursing into...\");\n this.shouldStop = traverseNode(\n this.node,\n this.opts,\n this.scope,\n this.state,\n this,\n this.skipKeys,\n );\n\n restoreContext(this, currentContext);\n\n this.call(\"exit\");\n\n return this.shouldStop;\n}\n\nexport function skip(this: NodePath) {\n this.shouldSkip = true;\n}\n\nexport function skipKey(this: NodePath, key: string) {\n if (this.skipKeys == null) {\n this.skipKeys = {};\n }\n this.skipKeys[key] = true;\n}\n\nexport function stop(this: NodePath) {\n // this.shouldSkip = true; this.shouldStop = true;\n this._traverseFlags |= SHOULD_SKIP | SHOULD_STOP;\n}\n\nexport function setScope(this: NodePath) {\n if (this.opts && this.opts.noScope) return;\n\n let path = this.parentPath;\n\n if (\n // Skip method scope if is computed method key or decorator expression\n ((this.key === \"key\" || this.listKey === \"decorators\") &&\n path.isMethod()) ||\n // Skip switch scope if for discriminant (`x` in `switch (x) {}`).\n (this.key === \"discriminant\" && path.isSwitchStatement())\n ) {\n path = path.parentPath;\n }\n\n let target;\n while (path && !target) {\n if (path.opts && path.opts.noScope) return;\n\n target = path.scope;\n path = path.parentPath;\n }\n\n this.scope = this.getScope(tLine truncated
+492
View File
@@ -0,0 +1,492 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.arrowFunctionToExpression = arrowFunctionToExpression;
exports.arrowFunctionToShadowed = arrowFunctionToShadowed;
exports.ensureBlock = ensureBlock;
exports.toComputedKey = toComputedKey;
exports.unwrapFunctionEnvironment = unwrapFunctionEnvironment;
var _t = require("@babel/types");
var _helperEnvironmentVisitor = require("@babel/helper-environment-visitor");
var _helperFunctionName = require("@babel/helper-function-name");
var _visitors = require("../visitors");
const {
arrowFunctionExpression,
assignmentExpression,
binaryExpression,
blockStatement,
callExpression,
conditionalExpression,
expressionStatement,
identifier,
isIdentifier,
jsxIdentifier,
logicalExpression,
LOGICAL_OPERATORS,
memberExpression,
metaProperty,
numericLiteral,
objectExpression,
restElement,
returnStatement,
sequenceExpression,
spreadElement,
stringLiteral,
super: _super,
thisExpression,
toExpression,
unaryExpression
} = _t;
function toComputedKey() {
let key;
if (this.isMemberExpression()) {
key = this.node.property;
} else if (this.isProperty() || this.isMethod()) {
key = this.node.key;
} else {
throw new ReferenceError("todo");
}
if (!this.node.computed) {
if (isIdentifier(key)) key = stringLiteral(key.name);
}
return key;
}
function ensureBlock() {
const body = this.get("body");
const bodyNode = body.node;
if (Array.isArray(body)) {
throw new Error("Can't convert array path to a block statement");
}
if (!bodyNode) {
throw new Error("Can't convert node without a body");
}
if (body.isBlockStatement()) {
return bodyNode;
}
const statements = [];
let stringPath = "body";
let key;
let listKey;
if (body.isStatement()) {
listKey = "body";
key = 0;
statements.push(body.node);
} else {
stringPath += ".body.0";
if (this.isFunction()) {
key = "argument";
statements.push(returnStatement(body.node));
} else {
key = "expression";
statements.push(expressionStatement(body.node));
}
}
this.node.body = blockStatement(statements);
const parentPath = this.get(stringPath);
body.setup(parentPath, listKey ?
parentPath.node[listKey] : parentPath.node, listKey, key);
return this.node;
}
function arrowFunctionToShadowed() {
if (!this.isArrowFunctionExpression()) return;
this.arrowFunctionToExpression();
}
function unwrapFunctionEnvironment() {
if (!this.isArrowFunctionExpression() && !this.isFunctionExpression() && !this.isFunctionDeclaration()) {
throw this.buildCodeFrameError("Can only unwrap the environment of a function.");
}
hoistFunctionEnvironment(this);
}
function setType(path, type) {
path.node.type = type;
}
function arrowFunctionToExpression({
allowInsertArrow = true,
allowInsertArrowWithRest = allowInsertArrow,
specCompliant = false,
noNewArrows = !specCompliant
} = {}) {
if (!this.isArrowFunctionExpression()) {
throw this.buildCodeFrameError("Cannot convert non-arrow function to a function expression.");
}
const {
thisBinding,
fnPath: fn
} = hoistFunctionEnvironment(this, noNewArrows, allowInsertArrow, allowInsertArrowWithRest);
fn.ensureBlock();
setType(fn, "FunctionExpression");
if (!noNewArrows) {
const checkBinding = thisBinding ? null : fn.scope.generateUidIdentifier("arrowCheckId");
if (checkBinding) {
fn.parentPath.scope.push({
id: checkBinding,
init: objectExpression([])
});
}
fn.get("body").unshiftContainer("body", expressionStatement(callExpression(this.hub.addHelper("newArrowCheck"), [thisExpression(), checkBinding ? identifier(checkBinding.name) : identifier(thisBinding)])));
fn.replaceWith(callExpression(memberExpression(
(0, _helperFunctionName.default)(this, true) || fn.node, identifier("bind")), [checkBinding ? identifier(checkBinding.name) : thisExpression()]));
return fn.get("callee.object");
}
return fn;
}
const getSuperCallsVisitor = (0, _visitors.merge)([{
CallExpression(child, {
allSuperCalls
}) {
if (!child.get("callee").isSuper()) return;
allSuperCalls.push(child);
}
}, _helperEnvironmentVisitor.default]);
function hoistFunctionEnvironment(fnPath,
noNewArrows = true, allowInsertArrow = true, allowInsertArrowWithRest = true) {
let arrowParent;
let thisEnvFn = fnPath.findParent(p => {
if (p.isArrowFunctionExpression()) {
var _arrowParent;
(_arrowParent = arrowParent) != null ? _arrowParent : arrowParent = p;
return false;
}
return p.isFunction() || p.isProgram() || p.isClassProperty({
static: false
}) || p.isClassPrivateProperty({
static: false
});
});
const inConstructor = thisEnvFn.isClassMethod({
kind: "constructor"
});
if (thisEnvFn.isClassProperty() || thisEnvFn.isClassPrivateProperty()) {
if (arrowParent) {
thisEnvFn = arrowParent;
} else if (allowInsertArrow) {
fnPath.replaceWith(callExpression(arrowFunctionExpression([], toExpression(fnPath.node)), []));
thisEnvFn = fnPath.get("callee");
fnPath = thisEnvFn.get("body");
} else {
throw fnPath.buildCodeFrameError("Unable to transform arrow inside class property");
}
}
const {
thisPaths,
argumentsPaths,
newTargetPaths,
superProps,
superCalls
} = getScopeInformation(fnPath);
if (inConstructor && superCalls.length > 0) {
if (!allowInsertArrow) {
throw superCalls[0].buildCodeFrameError("When using '@babel/plugin-transform-arrow-functions', " + "it's not possible to compile `super()` in an arrow function without compiling classes.\n" + "Please add '@babel/plugin-transform-classes' to your Babel configuration.");
}
if (!allowInsertArrowWithRest) {
throw superCalls[0].buildCodeFrameError("When using '@babel/plugin-transform-parameters', " + "it's not possible to compile `super()` in an arrow function with default or rest parameters without compiling classes.\n" + "Please add '@babel/plugin-transform-classes' to your Babel configuration.");
}
const allSuperCalls = [];
thisEnvFn.traverse(getSuperCallsVisitor, {
allSuperCalls
});
const superBinding = getSuperBinding(thisEnvFn);
allSuperCalls.forEach(superCall => {
const callee = identifier(superBinding);
callee.loc = superCall.node.callee.loc;
superCall.get("callee").replaceWith(callee);
});
}
if (argumentsPaths.length > 0) {
const argumentsBinding = getBinding(thisEnvFn, "arguments", () => {
const args = () => identifier("arguments");
if (thisEnvFn.scope.path.isProgram()) {
return conditionalExpression(binaryExpression("===", unaryExpression("typeof", args()), stringLiteral("undefined")), thisEnvFn.scope.buildUndefinedNode(), args());
} else {
return args();
}
});
argumentsPaths.forEach(argumentsChild => {
const argsRef = identifier(argumentsBinding);
argsRef.loc = argumentsChild.node.loc;
argumentsChild.replaceWith(argsRef);
});
}
if (newTargetPaths.length > 0) {
const newTargetBinding = getBinding(thisEnvFn, "newtarget", () => metaProperty(identifier("new"), identifier("target")));
newTargetPaths.forEach(targetChild => {
const targetRef = identifier(newTargetBinding);
targetRef.loc = targetChild.node.loc;
targetChild.replaceWith(targetRef);
});
}
if (superProps.length > 0) {
if (!allowInsertArrow) {
throw superProps[0].buildCodeFrameError("When using '@babel/plugin-transform-arrow-functions', " + "it's not possible to compile `super.prop` in an arrow function without compiling classes.\n" + "Please add '@babel/plugin-transform-classes' to your Babel configuration.");
}
const flatSuperProps = superProps.reduce((acc, superProp) => acc.concat(standardizeSuperProperty(superProp)), []);
flatSuperProps.forEach(superProp => {
const key = superProp.node.computed ? "" :
superProp.get("property").node.name;
const superParentPath = superProp.parentPath;
const isAssignment = superParentPath.isAssignmentExpression({
left: superProp.node
});
const isCall = superParentPath.isCallExpression({
callee: superProp.node
});
const isTaggedTemplate = superParentPath.isTaggedTemplateExpression({
tag: superProp.node
});
const superBinding = getSuperPropBinding(thisEnvFn, isAssignment, key);
const args = [];
if (superProp.node.computed) {
args.push(superProp.get("property").node);
}
if (isAssignment) {
const value = superParentPath.node.right;
args.push(value);
}
const call = callExpression(identifier(superBinding), args);
if (isCall) {
superParentPath.unshiftContainer("arguments", thisExpression());
superProp.replaceWith(memberExpression(call, identifier("call")));
thisPaths.push(superParentPath.get("arguments.0"));
} else if (isAssignment) {
superParentPath.replaceWith(call);
} else if (isTaggedTemplate) {
superProp.replaceWith(callExpression(memberExpression(call, identifier("bind"), false), [thisExpression()]));
thisPaths.push(superProp.get("arguments.0"));
} else {
superProp.replaceWith(call);
}
});
}
let thisBinding;
if (thisPaths.length > 0 || !noNewArrows) {
thisBinding = getThisBinding(thisEnvFn, inConstructor);
if (noNewArrows ||
inConstructor && hasSuperClass(thisEnvFn)) {
thisPaths.forEach(thisChild => {
const thisRef = thisChild.isJSX() ? jsxIdentifier(thisBinding) : identifier(thisBinding);
thisRef.loc = thisChild.node.loc;
thisChild.replaceWith(thisRef);
});
if (!noNewArrows) thisBinding = null;
}
}
return {
thisBinding,
fnPath
};
}
function isLogicalOp(op) {
return LOGICAL_OPERATORS.includes(op);
}
function standardizeSuperProperty(superProp) {
if (superProp.parentPath.isAssignmentExpression() && superProp.parentPath.node.operator !== "=") {
const assignmentPath = superProp.parentPath;
const op = assignmentPath.node.operator.slice(0, -1);
const value = assignmentPath.node.right;
const isLogicalAssignment = isLogicalOp(op);
if (superProp.node.computed) {
const tmp = superProp.scope.generateDeclaredUidIdentifier("tmp");
const object = superProp.node.object;
const property = superProp.node.property;
assignmentPath.get("left").replaceWith(memberExpression(object, assignmentExpression("=", tmp, property), true));
assignmentPath.get("right").replaceWith(rightExpression(isLogicalAssignment ? "=" : op, memberExpression(object, identifier(tmp.name), true), value));
} else {
const object = superProp.node.object;
const property = superProp.node.property;
assignmentPath.get("left").replaceWith(memberExpression(object, property));
assignmentPath.get("right").replaceWith(rightExpression(isLogicalAssignment ? "=" : op, memberExpression(object, identifier(property.name)), value));
}
if (isLogicalAssignment) {
assignmentPath.replaceWith(logicalExpression(op, assignmentPath.node.left, assignmentPath.node.right));
} else {
assignmentPath.node.operator = "=";
}
return [assignmentPath.get("left"), assignmentPath.get("right").get("left")];
} else if (superProp.parentPath.isUpdateExpression()) {
const updateExpr = superProp.parentPath;
const tmp = superProp.scope.generateDeclaredUidIdentifier("tmp");
const computedKey = superProp.node.computed ? superProp.scope.generateDeclaredUidIdentifier("prop") : null;
const parts = [assignmentExpression("=", tmp, memberExpression(superProp.node.object, computedKey ? assignmentExpression("=", computedKey, superProp.node.property) : superProp.node.property, superProp.node.computed)), assignmentExpression("=", memberExpression(superProp.node.object, computedKey ? identifier(computedKey.name) : superProp.node.property, superProp.node.computed), binaryExpression(
superProp.parentPath.node.operator[0], identifier(tmp.name), numericLiteral(1)))];
if (!superProp.parentPath.node.prefix) {
parts.push(identifier(tmp.name));
}
updateExpr.replaceWith(sequenceExpression(parts));
const left = updateExpr.get("expressions.0.right");
const right = updateExpr.get("expressions.1.left");
return [left, right];
}
return [superProp];
function rightExpression(op, left, right) {
if (op === "=") {
return assignmentExpression("=", left, right);
} else {
return binaryExpression(op, left, right);
}
}
}
function hasSuperClass(thisEnvFn) {
return thisEnvFn.isClassMethod() && !!thisEnvFn.parentPath.parentPath.node.superClass;
}
const assignSuperThisVisitor = (0, _visitors.merge)([{
CallExpression(child, {
supers,
thisBinding
}) {
if (!child.get("callee").isSuper()) return;
if (supers.has(child.node)) return;
supers.add(child.node);
child.replaceWithMultiple([child.node, assignmentExpression("=", identifier(thisBinding), identifier("this"))]);
}
}, _helperEnvironmentVisitor.default]);
function getThisBinding(thisEnvFn, inConstructor) {
return getBinding(thisEnvFn, "this", thisBinding => {
if (!inConstructor || !hasSuperClass(thisEnvFn)) return thisExpression();
thisEnvFn.traverse(assignSuperThisVisitor, {
supers: new WeakSet(),
thisBinding
});
});
}
function getSuperBinding(thisEnvFn) {
return getBinding(thisEnvFn, "supercall", () => {
const argsBinding = thisEnvFn.scope.generateUidIdentifier("args");
return arrowFunctionExpression([restElement(argsBinding)], callExpression(_super(), [spreadElement(identifier(argsBinding.name))]));
});
}
function getSuperPropBinding(thisEnvFn, isAssignment, propName) {
const op = isAssignment ? "set" : "get";
return getBinding(thisEnvFn, `superprop_${op}:${propName || ""}`, () => {
const argsList = [];
let fnBody;
if (propName) {
fnBody = memberExpression(_super(), identifier(propName));
} else {
const method = thisEnvFn.scope.generateUidIdentifier("prop");
argsList.unshift(method);
fnBody = memberExpression(_super(), identifier(method.name), true);
}
if (isAssignment) {
const valueIdent = thisEnvFn.scope.generateUidIdentifier("value");
argsList.push(valueIdent);
fnBody = assignmentExpression("=", fnBody, identifier(valueIdent.name));
}
return arrowFunctionExpression(argsList, fnBody);
});
}
function getBinding(thisEnvFn, key, init) {
const cacheKey = "binding:" + key;
let data = thisEnvFn.getData(cacheKey);
if (!data) {
const id = thisEnvFn.scope.generateUidIdentifier(key);
data = id.name;
thisEnvFn.setData(cacheKey, data);
thisEnvFn.scope.push({
id: id,
init: init(data)
});
}
return data;
}
const getScopeInformationVisitor = (0, _visitors.merge)([{
ThisExpression(child, {
thisPaths
}) {
thisPaths.push(child);
},
JSXIdentifier(child, {
thisPaths
}) {
if (child.node.name !== "this") return;
if (!child.parentPath.isJSXMemberExpression({
object: child.node
}) && !child.parentPath.isJSXOpeningElement({
name: child.node
})) {
return;
}
thisPaths.push(child);
},
CallExpression(child, {
superCalls
}) {
if (child.get("callee").isSuper()) superCalls.push(child);
},
MemberExpression(child, {
superProps
}) {
if (child.get("object").isSuper()) superProps.push(child);
},
Identifier(child, {
argumentsPaths
}) {
if (!child.isReferencedIdentifier({
name: "arguments"
})) return;
let curr = child.scope;
do {
if (curr.hasOwnBinding("arguments")) {
curr.rename("arguments");
return;
}
if (curr.path.isFunction() && !curr.path.isArrowFunctionExpression()) {
break;
}
} while (curr = curr.parent);
argumentsPaths.push(child);
},
MetaProperty(child, {
newTargetPaths
}) {
if (!child.get("meta").isIdentifier({
name: "new"
})) return;
if (!child.get("property").isIdentifier({
name: "target"
})) return;
newTargetPaths.push(child);
}
}, _helperEnvironmentVisitor.default]);
function getScopeInformation(fnPath) {
const thisPaths = [];
const argumentsPaths = [];
const newTargetPaths = [];
const superProps = [];
const superCalls = [];
fnPath.traverse(getScopeInformationVisitor, {
thisPaths,
argumentsPaths,
newTargetPaths,
superProps,
superCalls
});
return {
thisPaths,
argumentsPaths,
newTargetPaths,
superProps,
superCalls
};
}
//# sourceMappingURL=conversion.js.map
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{"version":3,"names":["arrowFunctionExpression","assignmentExpression","binaryExpression","blockStatement","callExpression","conditionalExpression","expressionStatement","identifier","isIdentifier","jsxIdentifier","logicalExpression","LOGICAL_OPERATORS","memberExpression","metaProperty","numericLiteral","objectExpression","restElement","returnStatement","sequenceExpression","spreadElement","stringLiteral","super","_super","thisExpression","toExpression","unaryExpression","toComputedKey","key","isMemberExpression","node","property","isProperty","isMethod","ReferenceError","computed","name","ensureBlock","body","get","bodyNode","Array","isArray","Error","isBlockStatement","statements","stringPath","listKey","isStatement","push","isFunction","parentPath","setup","arrowFunctionToShadowed","isArrowFunctionExpression","arrowFunctionToExpression","unwrapFunctionEnvironment","isFunctionExpression","isFunctionDeclaration","buildCodeFrameError","hoistFunctionEnvironment","setType","path","type","allowInsertArrow","allowInsertArrowWithRest","specCompliant","noNewArrows","thisBinding","fnPath","fn","checkBinding","scope","generateUidIdentifier","id","init","unshiftContainer","hub","addHelper","replaceWith","nameFunction","getSuperCallsVisitor","mergeVisitors","CallExpression","child","allSuperCalls","isSuper","environmentVisitor","arrowParent","thisEnvFn","findParent","p","isProgram","isClassProperty","static","isClassPrivateProperty","inConstructor","isClassMethod","kind","thisPaths","argumentsPaths","newTargetPaths","superProps","superCalls","getScopeInformation","length","traverse","superBinding","getSuperBinding","forEach","superCall","callee","loc","argumentsBinding","getBinding","args","buildUndefinedNode","argumentsChild","argsRef","newTargetBinding","targetChild","targetRef","flatSuperProps","reduce","acc","superProp","concat","standardizeSuperProperty","superParentPath","isAssignment","isAssignmentExpression","left","isCall","isCallExpression","isTaggedTemplate","isTaggedTemplateExpression","tag","getSuperPropBinding","value","right","call","getThisBinding","hasSuperClass","thisChild","thisRef","isJSX","isLogicalOp","op","includes","operator","assignmentPath","slice","isLogicalAssignment","tmp","generateDeclaredUidIdentifier","object","rightExpression","isUpdateExpression","updateExpr","computedKey","parts","prefix","superClass","assignSuperThisVisitor","supers","has","add","replaceWithMultiple","WeakSet","argsBinding","propName","argsList","fnBody","method","unshift","valueIdent","cacheKey","data","getData","setData","getScopeInformationVisitor","ThisExpression","JSXIdentifier","isJSXMemberExpression","isJSXOpeningElement","MemberExpression","Identifier","isReferencedIdentifier","curr","hasOwnBinding","rename","parent","MetaProperty"],"sources":["../../src/path/conversion.ts"],"sourcesContent":["// This file contains methods that convert the path node into another node or some other type of data.\n\nimport {\n arrowFunctionExpression,\n assignmentExpression,\n binaryExpression,\n blockStatement,\n callExpression,\n conditionalExpression,\n expressionStatement,\n identifier,\n isIdentifier,\n jsxIdentifier,\n logicalExpression,\n LOGICAL_OPERATORS,\n memberExpression,\n metaProperty,\n numericLiteral,\n objectExpression,\n restElement,\n returnStatement,\n sequenceExpression,\n spreadElement,\n stringLiteral,\n super as _super,\n thisExpression,\n toExpression,\n unaryExpression,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport environmentVisitor from \"@babel/helper-environment-visitor\";\nimport nameFunction from \"@babel/helper-function-name\";\nimport { merge as mergeVisitors } from \"../visitors\";\nimport type NodePath from \"./index\";\n\nexport function toComputedKey(this: NodePath) {\n let key;\n if (this.isMemberExpression()) {\n key = this.node.property;\n } else if (this.isProperty() || this.isMethod()) {\n key = this.node.key;\n } else {\n throw new ReferenceError(\"todo\");\n }\n\n // @ts-expect-error todo(flow->ts) computed does not exist in ClassPrivateProperty\n if (!this.node.computed) {\n if (isIdentifier(key)) key = stringLiteral(key.name);\n }\n\n return key;\n}\n\nexport function ensureBlock(\n this: NodePath<\n t.Loop | t.WithStatement | t.Function | t.LabeledStatement | t.CatchClause\n >,\n) {\n const body = this.get(\"body\");\n const bodyNode = body.node;\n\n if (Array.isArray(body)) {\n throw new Error(\"Can't convert array path to a block statement\");\n }\n if (!bodyNode) {\n throw new Error(\"Can't convert node without a body\");\n }\n\n if (body.isBlockStatement()) {\n return bodyNode;\n }\n\n const statements: Array<t.Statement> = [];\n\n let stringPath = \"body\";\n let key;\n let listKey;\n if (body.isStatement()) {\n listKey = \"body\";\n key = 0;\n statements.push(body.node);\n } else {\n stringPath += \".body.0\";\n if (this.isFunction()) {\n key = \"arLine truncated
+340
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.evaluate = evaluate;
exports.evaluateTruthy = evaluateTruthy;
const VALID_CALLEES = ["String", "Number", "Math"];
const INVALID_METHODS = ["random"];
function isValidCallee(val) {
return VALID_CALLEES.includes(
val);
}
function isInvalidMethod(val) {
return INVALID_METHODS.includes(
val);
}
function evaluateTruthy() {
const res = this.evaluate();
if (res.confident) return !!res.value;
}
function deopt(path, state) {
if (!state.confident) return;
state.deoptPath = path;
state.confident = false;
}
function evaluateCached(path, state) {
const {
node
} = path;
const {
seen
} = state;
if (seen.has(node)) {
const existing = seen.get(node);
if (existing.resolved) {
return existing.value;
} else {
deopt(path, state);
return;
}
} else {
const item = {
resolved: false
};
seen.set(node, item);
const val = _evaluate(path, state);
if (state.confident) {
item.resolved = true;
item.value = val;
}
return val;
}
}
function _evaluate(path, state) {
if (!state.confident) return;
if (path.isSequenceExpression()) {
const exprs = path.get("expressions");
return evaluateCached(exprs[exprs.length - 1], state);
}
if (path.isStringLiteral() || path.isNumericLiteral() || path.isBooleanLiteral()) {
return path.node.value;
}
if (path.isNullLiteral()) {
return null;
}
if (path.isTemplateLiteral()) {
return evaluateQuasis(path, path.node.quasis, state);
}
if (path.isTaggedTemplateExpression() && path.get("tag").isMemberExpression()) {
const object = path.get("tag.object");
const {
node: {
name
}
} = object;
const property = path.get("tag.property");
if (object.isIdentifier() && name === "String" &&
!path.scope.getBinding(name) && property.isIdentifier() && property.node.name === "raw") {
return evaluateQuasis(path, path.node.quasi.quasis, state, true);
}
}
if (path.isConditionalExpression()) {
const testResult = evaluateCached(path.get("test"), state);
if (!state.confident) return;
if (testResult) {
return evaluateCached(path.get("consequent"), state);
} else {
return evaluateCached(path.get("alternate"), state);
}
}
if (path.isExpressionWrapper()) {
return evaluateCached(path.get("expression"), state);
}
if (path.isMemberExpression() && !path.parentPath.isCallExpression({
callee: path.node
})) {
const property = path.get("property");
const object = path.get("object");
if (object.isLiteral() && property.isIdentifier()) {
const value = object.node.value;
const type = typeof value;
if (type === "number" || type === "string") {
return value[property.node.name];
}
}
}
if (path.isReferencedIdentifier()) {
const binding = path.scope.getBinding(path.node.name);
if (binding && binding.constantViolations.length > 0) {
return deopt(binding.path, state);
}
if (binding && path.node.start < binding.path.node.end) {
return deopt(binding.path, state);
}
if (binding != null && binding.hasValue) {
return binding.value;
} else {
if (path.node.name === "undefined") {
return binding ? deopt(binding.path, state) : undefined;
} else if (path.node.name === "Infinity") {
return binding ? deopt(binding.path, state) : Infinity;
} else if (path.node.name === "NaN") {
return binding ? deopt(binding.path, state) : NaN;
}
const resolved = path.resolve();
if (resolved === path) {
return deopt(path, state);
} else {
return evaluateCached(resolved, state);
}
}
}
if (path.isUnaryExpression({
prefix: true
})) {
if (path.node.operator === "void") {
return undefined;
}
const argument = path.get("argument");
if (path.node.operator === "typeof" && (argument.isFunction() || argument.isClass())) {
return "function";
}
const arg = evaluateCached(argument, state);
if (!state.confident) return;
switch (path.node.operator) {
case "!":
return !arg;
case "+":
return +arg;
case "-":
return -arg;
case "~":
return ~arg;
case "typeof":
return typeof arg;
}
}
if (path.isArrayExpression()) {
const arr = [];
const elems = path.get("elements");
for (const elem of elems) {
const elemValue = elem.evaluate();
if (elemValue.confident) {
arr.push(elemValue.value);
} else {
return deopt(elemValue.deopt, state);
}
}
return arr;
}
if (path.isObjectExpression()) {
const obj = {};
const props = path.get("properties");
for (const prop of props) {
if (prop.isObjectMethod() || prop.isSpreadElement()) {
return deopt(prop, state);
}
const keyPath = prop.get("key");
let key;
if (prop.node.computed) {
key = keyPath.evaluate();
if (!key.confident) {
return deopt(key.deopt, state);
}
key = key.value;
} else if (keyPath.isIdentifier()) {
key = keyPath.node.name;
} else {
key = keyPath.node.value;
}
const valuePath = prop.get("value");
let value = valuePath.evaluate();
if (!value.confident) {
return deopt(value.deopt, state);
}
value = value.value;
obj[key] = value;
}
return obj;
}
if (path.isLogicalExpression()) {
const wasConfident = state.confident;
const left = evaluateCached(path.get("left"), state);
const leftConfident = state.confident;
state.confident = wasConfident;
const right = evaluateCached(path.get("right"), state);
const rightConfident = state.confident;
switch (path.node.operator) {
case "||":
state.confident = leftConfident && (!!left || rightConfident);
if (!state.confident) return;
return left || right;
case "&&":
state.confident = leftConfident && (!left || rightConfident);
if (!state.confident) return;
return left && right;
case "??":
state.confident = leftConfident && (left != null || rightConfident);
if (!state.confident) return;
return left != null ? left : right;
}
}
if (path.isBinaryExpression()) {
const left = evaluateCached(path.get("left"), state);
if (!state.confident) return;
const right = evaluateCached(path.get("right"), state);
if (!state.confident) return;
switch (path.node.operator) {
case "-":
return left - right;
case "+":
return left + right;
case "/":
return left / right;
case "*":
return left * right;
case "%":
return left % right;
case "**":
return Math.pow(left, right);
case "<":
return left < right;
case ">":
return left > right;
case "<=":
return left <= right;
case ">=":
return left >= right;
case "==":
return left == right;
case "!=":
return left != right;
case "===":
return left === right;
case "!==":
return left !== right;
case "|":
return left | right;
case "&":
return left & right;
case "^":
return left ^ right;
case "<<":
return left << right;
case ">>":
return left >> right;
case ">>>":
return left >>> right;
}
}
if (path.isCallExpression()) {
const callee = path.get("callee");
let context;
let func;
if (callee.isIdentifier() && !path.scope.getBinding(callee.node.name) && isValidCallee(callee.node.name)) {
func = global[callee.node.name];
}
if (callee.isMemberExpression()) {
const object = callee.get("object");
const property = callee.get("property");
if (object.isIdentifier() && property.isIdentifier() && isValidCallee(object.node.name) && !isInvalidMethod(property.node.name)) {
context = global[object.node.name];
func = context[property.node.name];
}
if (object.isLiteral() && property.isIdentifier()) {
const type = typeof object.node.value;
if (type === "string" || type === "number") {
context = object.node.value;
func = context[property.node.name];
}
}
}
if (func) {
const args = path.get("arguments").map(arg => evaluateCached(arg, state));
if (!state.confident) return;
return func.apply(context, args);
}
}
deopt(path, state);
}
function evaluateQuasis(path, quasis, state, raw = false) {
let str = "";
let i = 0;
const exprs = path.get("expressions");
for (const elem of quasis) {
if (!state.confident) break;
str += raw ? elem.value.raw : elem.value.cooked;
const expr = exprs[i++];
if (expr) str += String(evaluateCached(expr, state));
}
if (!state.confident) return;
return str;
}
function evaluate() {
const state = {
confident: true,
deoptPath: null,
seen: new Map()
};
let value = evaluateCached(this, state);
if (!state.confident) value = undefined;
return {
confident: state.confident,
deopt: state.deoptPath,
value: value
};
}
//# sourceMappingURL=evaluation.js.map
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{"version":3,"names":["VALID_CALLEES","INVALID_METHODS","isValidCallee","val","includes","isInvalidMethod","evaluateTruthy","res","evaluate","confident","value","deopt","path","state","deoptPath","evaluateCached","node","seen","has","existing","get","resolved","item","set","_evaluate","isSequenceExpression","exprs","length","isStringLiteral","isNumericLiteral","isBooleanLiteral","isNullLiteral","isTemplateLiteral","evaluateQuasis","quasis","isTaggedTemplateExpression","isMemberExpression","object","name","property","isIdentifier","scope","getBinding","quasi","isConditionalExpression","testResult","isExpressionWrapper","parentPath","isCallExpression","callee","isLiteral","type","isReferencedIdentifier","binding","constantViolations","start","end","hasValue","undefined","Infinity","NaN","resolve","isUnaryExpression","prefix","operator","argument","isFunction","isClass","arg","isArrayExpression","arr","elems","elem","elemValue","push","isObjectExpression","obj","props","prop","isObjectMethod","isSpreadElement","keyPath","key","computed","valuePath","isLogicalExpression","wasConfident","left","leftConfident","right","rightConfident","isBinaryExpression","context","func","global","args","map","apply","raw","str","i","cooked","expr","String","Map"],"sources":["../../src/path/evaluation.ts"],"sourcesContent":["import type NodePath from \"./index\";\nimport type * as t from \"@babel/types\";\n\n// This file contains Babels metainterpreter that can evaluate static code.\n\nconst VALID_CALLEES = [\"String\", \"Number\", \"Math\"] as const;\nconst INVALID_METHODS = [\"random\"] as const;\n\nfunction isValidCallee(val: string): val is typeof VALID_CALLEES[number] {\n return VALID_CALLEES.includes(\n // @ts-expect-error val is a string\n val,\n );\n}\n\nfunction isInvalidMethod(val: string): val is typeof INVALID_METHODS[number] {\n return INVALID_METHODS.includes(\n // @ts-expect-error val is a string\n val,\n );\n}\n\n/**\n * Walk the input `node` and statically evaluate if it's truthy.\n *\n * Returning `true` when we're sure that the expression will evaluate to a\n * truthy value, `false` if we're sure that it will evaluate to a falsy\n * value and `undefined` if we aren't sure. Because of this please do not\n * rely on coercion when using this method and check with === if it's false.\n *\n * For example do:\n *\n * if (t.evaluateTruthy(node) === false) falsyLogic();\n *\n * **AND NOT**\n *\n * if (!t.evaluateTruthy(node)) falsyLogic();\n *\n */\n\nexport function evaluateTruthy(this: NodePath): boolean {\n const res = this.evaluate();\n if (res.confident) return !!res.value;\n}\n\ntype State = {\n confident: boolean;\n deoptPath: NodePath | null;\n seen: Map<t.Node, Result>;\n};\n\ntype Result = {\n resolved: boolean;\n value?: any;\n};\n/**\n * Deopts the evaluation\n */\nfunction deopt(path: NodePath, state: State) {\n if (!state.confident) return;\n state.deoptPath = path;\n state.confident = false;\n}\n\n/**\n * We wrap the _evaluate method so we can track `seen` nodes, we push an item\n * to the map before we actually evaluate it so we can deopt on self recursive\n * nodes such as:\n *\n * var g = a ? 1 : 2,\n * a = g * this.foo\n */\nfunction evaluateCached(path: NodePath, state: State): any {\n const { node } = path;\n const { seen } = state;\n\n if (seen.has(node)) {\n const existing = seen.get(node);\n if (existing.resolved) {\n return existing.value;\n } else {\n deopt(path, state);\n return;\n }\n } else {\n const item: Result = { resolved: false };\n seen.set(node, item);\n\n const val = _evaluate(path, state);\n if (state.confident) {\n item.resolved = true;\n item.value = val;\n }\n return val;\n }\n}\n\nfunction _evaluate(path: NodePath, state: State): any {\n if (!state.confident) return;\n\n if (path.isSequenceExpression()) {\n const exprs = path.get(\"expressions\");\n return evaluateCached(exprs[exprs.length - 1], state);\n }\n\n if (\n path.isStringLiteral() ||\n path.isNumericLiteral() ||\n path.isBooleanLiteral()\n ) {\n return path.node.value;\n }\n\n if (path.isNullLiteral()) {\n return null;\n }\n\n if (path.isTemplateLiteral()) {\n return evaluateQuasis(path, path.node.quasis, state);\n }\n\n if (\n path.isTaggedTemplateExpression() &&\n path.get(\"tag\").isMemberExpression()\n ) {\n const object = path.get(\"tag.object\") as NodePath;\n const {\n // @ts-expect-error todo(flow->ts): possible bug, object is can be any expression and so name might be undefined\n node: { name },\n } = object;\n const property = path.get(\"tag.property\") as NodePath;\n\n if (\n object.isIdentifier() &&\n name === \"String\" &&\n // todo(flow->ts): was changed from getBinding(name, true)\n // should this be hasBinding(name, true) as the binding is never used later?\n !path.scope.getBinding(name) &&\n property.isIdentLine truncated
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports._getKey = _getKey;
exports._getPattern = _getPattern;
exports.get = get;
exports.getAllNextSiblings = getAllNextSiblings;
exports.getAllPrevSiblings = getAllPrevSiblings;
exports.getBindingIdentifierPaths = getBindingIdentifierPaths;
exports.getBindingIdentifiers = getBindingIdentifiers;
exports.getCompletionRecords = getCompletionRecords;
exports.getNextSibling = getNextSibling;
exports.getOpposite = getOpposite;
exports.getOuterBindingIdentifierPaths = getOuterBindingIdentifierPaths;
exports.getOuterBindingIdentifiers = getOuterBindingIdentifiers;
exports.getPrevSibling = getPrevSibling;
exports.getSibling = getSibling;
var _index = require("./index");
var _t = require("@babel/types");
const {
getBindingIdentifiers: _getBindingIdentifiers,
getOuterBindingIdentifiers: _getOuterBindingIdentifiers,
isDeclaration,
numericLiteral,
unaryExpression
} = _t;
const NORMAL_COMPLETION = 0;
const BREAK_COMPLETION = 1;
function NormalCompletion(path) {
return {
type: NORMAL_COMPLETION,
path
};
}
function BreakCompletion(path) {
return {
type: BREAK_COMPLETION,
path
};
}
function getOpposite() {
if (this.key === "left") {
return this.getSibling("right");
} else if (this.key === "right") {
return this.getSibling("left");
}
return null;
}
function addCompletionRecords(path, records, context) {
if (path) {
records.push(..._getCompletionRecords(path, context));
}
return records;
}
function completionRecordForSwitch(cases, records, context) {
let lastNormalCompletions = [];
for (let i = 0; i < cases.length; i++) {
const casePath = cases[i];
const caseCompletions = _getCompletionRecords(casePath, context);
const normalCompletions = [];
const breakCompletions = [];
for (const c of caseCompletions) {
if (c.type === NORMAL_COMPLETION) {
normalCompletions.push(c);
}
if (c.type === BREAK_COMPLETION) {
breakCompletions.push(c);
}
}
if (normalCompletions.length) {
lastNormalCompletions = normalCompletions;
}
records.push(...breakCompletions);
}
records.push(...lastNormalCompletions);
return records;
}
function normalCompletionToBreak(completions) {
completions.forEach(c => {
c.type = BREAK_COMPLETION;
});
}
function replaceBreakStatementInBreakCompletion(completions, reachable) {
completions.forEach(c => {
if (c.path.isBreakStatement({
label: null
})) {
if (reachable) {
c.path.replaceWith(unaryExpression("void", numericLiteral(0)));
} else {
c.path.remove();
}
}
});
}
function getStatementListCompletion(paths, context) {
const completions = [];
if (context.canHaveBreak) {
let lastNormalCompletions = [];
for (let i = 0; i < paths.length; i++) {
const path = paths[i];
const newContext = Object.assign({}, context, {
inCaseClause: false
});
if (path.isBlockStatement() && (context.inCaseClause ||
context.shouldPopulateBreak)) {
newContext.shouldPopulateBreak = true;
} else {
newContext.shouldPopulateBreak = false;
}
const statementCompletions = _getCompletionRecords(path, newContext);
if (statementCompletions.length > 0 &&
statementCompletions.every(c => c.type === BREAK_COMPLETION)) {
if (lastNormalCompletions.length > 0 && statementCompletions.every(c => c.path.isBreakStatement({
label: null
}))) {
normalCompletionToBreak(lastNormalCompletions);
completions.push(...lastNormalCompletions);
if (lastNormalCompletions.some(c => c.path.isDeclaration())) {
completions.push(...statementCompletions);
replaceBreakStatementInBreakCompletion(statementCompletions, true);
}
replaceBreakStatementInBreakCompletion(statementCompletions, false);
} else {
completions.push(...statementCompletions);
if (!context.shouldPopulateBreak) {
replaceBreakStatementInBreakCompletion(statementCompletions, true);
}
}
break;
}
if (i === paths.length - 1) {
completions.push(...statementCompletions);
} else {
lastNormalCompletions = [];
for (let i = 0; i < statementCompletions.length; i++) {
const c = statementCompletions[i];
if (c.type === BREAK_COMPLETION) {
completions.push(c);
}
if (c.type === NORMAL_COMPLETION) {
lastNormalCompletions.push(c);
}
}
}
}
} else if (paths.length) {
for (let i = paths.length - 1; i >= 0; i--) {
const pathCompletions = _getCompletionRecords(paths[i], context);
if (pathCompletions.length > 1 || pathCompletions.length === 1 && !pathCompletions[0].path.isVariableDeclaration()) {
completions.push(...pathCompletions);
break;
}
}
}
return completions;
}
function _getCompletionRecords(path, context) {
let records = [];
if (path.isIfStatement()) {
records = addCompletionRecords(path.get("consequent"), records, context);
records = addCompletionRecords(path.get("alternate"), records, context);
} else if (path.isDoExpression() || path.isFor() || path.isWhile() || path.isLabeledStatement()) {
return addCompletionRecords(path.get("body"), records, context);
} else if (path.isProgram() || path.isBlockStatement()) {
return getStatementListCompletion(path.get("body"), context);
} else if (path.isFunction()) {
return _getCompletionRecords(path.get("body"), context);
} else if (path.isTryStatement()) {
records = addCompletionRecords(path.get("block"), records, context);
records = addCompletionRecords(path.get("handler"), records, context);
} else if (path.isCatchClause()) {
return addCompletionRecords(path.get("body"), records, context);
} else if (path.isSwitchStatement()) {
return completionRecordForSwitch(path.get("cases"), records, context);
} else if (path.isSwitchCase()) {
return getStatementListCompletion(path.get("consequent"), {
canHaveBreak: true,
shouldPopulateBreak: false,
inCaseClause: true
});
} else if (path.isBreakStatement()) {
records.push(BreakCompletion(path));
} else {
records.push(NormalCompletion(path));
}
return records;
}
function getCompletionRecords() {
const records = _getCompletionRecords(this, {
canHaveBreak: false,
shouldPopulateBreak: false,
inCaseClause: false
});
return records.map(r => r.path);
}
function getSibling(key) {
return _index.default.get({
parentPath: this.parentPath,
parent: this.parent,
container: this.container,
listKey: this.listKey,
key: key
}).setContext(this.context);
}
function getPrevSibling() {
return this.getSibling(this.key - 1);
}
function getNextSibling() {
return this.getSibling(this.key + 1);
}
function getAllNextSiblings() {
let _key = this.key;
let sibling = this.getSibling(++_key);
const siblings = [];
while (sibling.node) {
siblings.push(sibling);
sibling = this.getSibling(++_key);
}
return siblings;
}
function getAllPrevSiblings() {
let _key = this.key;
let sibling = this.getSibling(--_key);
const siblings = [];
while (sibling.node) {
siblings.push(sibling);
sibling = this.getSibling(--_key);
}
return siblings;
}
function get(key, context = true) {
if (context === true) context = this.context;
const parts = key.split(".");
if (parts.length === 1) {
return this._getKey(key, context);
} else {
return this._getPattern(parts, context);
}
}
function _getKey(key, context) {
const node = this.node;
const container = node[key];
if (Array.isArray(container)) {
return container.map((_, i) => {
return _index.default.get({
listKey: key,
parentPath: this,
parent: node,
container: container,
key: i
}).setContext(context);
});
} else {
return _index.default.get({
parentPath: this,
parent: node,
container: node,
key: key
}).setContext(context);
}
}
function _getPattern(parts, context) {
let path = this;
for (const part of parts) {
if (part === ".") {
path = path.parentPath;
} else {
if (Array.isArray(path)) {
path = path[part];
} else {
path = path.get(part, context);
}
}
}
return path;
}
function getBindingIdentifiers(duplicates) {
return _getBindingIdentifiers(this.node, duplicates);
}
function getOuterBindingIdentifiers(duplicates) {
return _getOuterBindingIdentifiers(this.node, duplicates);
}
function getBindingIdentifierPaths(duplicates = false, outerOnly = false) {
const path = this;
const search = [path];
const ids = Object.create(null);
while (search.length) {
const id = search.shift();
if (!id) continue;
if (!id.node) continue;
const keys =
_getBindingIdentifiers.keys[id.node.type];
if (id.isIdentifier()) {
if (duplicates) {
const _ids = ids[id.node.name] = ids[id.node.name] || [];
_ids.push(id);
} else {
ids[id.node.name] = id;
}
continue;
}
if (id.isExportDeclaration()) {
const declaration = id.get("declaration");
if (isDeclaration(declaration)) {
search.push(declaration);
}
continue;
}
if (outerOnly) {
if (id.isFunctionDeclaration()) {
search.push(id.get("id"));
continue;
}
if (id.isFunctionExpression()) {
continue;
}
}
if (keys) {
for (let i = 0; i < keys.length; i++) {
const key = keys[i];
const child = id.get(key);
if (Array.isArray(child)) {
search.push(...child);
} else if (child.node) {
search.push(child);
}
}
}
}
return ids;
}
function getOuterBindingIdentifierPaths(duplicates = false) {
return this.getBindingIdentifierPaths(duplicates, true);
}
//# sourceMappingURL=family.js.map
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{"version":3,"names":["getBindingIdentifiers","_getBindingIdentifiers","getOuterBindingIdentifiers","_getOuterBindingIdentifiers","isDeclaration","numericLiteral","unaryExpression","NORMAL_COMPLETION","BREAK_COMPLETION","NormalCompletion","path","type","BreakCompletion","getOpposite","key","getSibling","addCompletionRecords","records","context","push","_getCompletionRecords","completionRecordForSwitch","cases","lastNormalCompletions","i","length","casePath","caseCompletions","normalCompletions","breakCompletions","c","normalCompletionToBreak","completions","forEach","replaceBreakStatementInBreakCompletion","reachable","isBreakStatement","label","replaceWith","remove","getStatementListCompletion","paths","canHaveBreak","newContext","inCaseClause","isBlockStatement","shouldPopulateBreak","statementCompletions","every","some","pathCompletions","isVariableDeclaration","isIfStatement","get","isDoExpression","isFor","isWhile","isLabeledStatement","isProgram","isFunction","isTryStatement","isCatchClause","isSwitchStatement","isSwitchCase","getCompletionRecords","map","r","NodePath","parentPath","parent","container","listKey","setContext","getPrevSibling","getNextSibling","getAllNextSiblings","_key","sibling","siblings","node","getAllPrevSiblings","parts","split","_getKey","_getPattern","Array","isArray","_","part","duplicates","getBindingIdentifierPaths","outerOnly","search","ids","Object","create","id","shift","keys","isIdentifier","_ids","name","isExportDeclaration","declaration","isFunctionDeclaration","isFunctionExpression","child","getOuterBindingIdentifierPaths"],"sources":["../../src/path/family.ts"],"sourcesContent":["// This file contains methods responsible for dealing with/retrieving children or siblings.\n\nimport type TraversalContext from \"../context\";\nimport NodePath from \"./index\";\nimport {\n getBindingIdentifiers as _getBindingIdentifiers,\n getOuterBindingIdentifiers as _getOuterBindingIdentifiers,\n isDeclaration,\n numericLiteral,\n unaryExpression,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\n\nconst NORMAL_COMPLETION = 0 as const;\nconst BREAK_COMPLETION = 1 as const;\n\ntype Completion = {\n path: NodePath;\n type: 0 | 1;\n};\n\ntype CompletionContext = {\n // whether the current context allows `break` statement. When it allows, we have\n // to search all the statements for potential `break`\n canHaveBreak: boolean;\n // whether the statement is an immediate descendant of a switch case clause\n inCaseClause: boolean;\n // whether the `break` statement record should be populated to upper level\n // when a `break` statement is an immediate descendant of a block statement, e.g.\n // `{ break }`, it can influence the control flow in the upper levels.\n shouldPopulateBreak: boolean;\n};\n\nfunction NormalCompletion(path: NodePath) {\n return { type: NORMAL_COMPLETION, path };\n}\n\nfunction BreakCompletion(path: NodePath) {\n return { type: BREAK_COMPLETION, path };\n}\n\nexport function getOpposite(this: NodePath): NodePath | null {\n if (this.key === \"left\") {\n return this.getSibling(\"right\");\n } else if (this.key === \"right\") {\n return this.getSibling(\"left\");\n }\n return null;\n}\n\nfunction addCompletionRecords(\n path: NodePath | null | undefined,\n records: Completion[],\n context: CompletionContext,\n): Completion[] {\n if (path) {\n records.push(..._getCompletionRecords(path, context));\n }\n return records;\n}\n\nfunction completionRecordForSwitch(\n cases: NodePath<t.SwitchCase>[],\n records: Completion[],\n context: CompletionContext,\n): Completion[] {\n // https://tc39.es/ecma262/#sec-runtime-semantics-caseblockevaluation\n let lastNormalCompletions: Completion[] = [];\n for (let i = 0; i < cases.length; i++) {\n const casePath = cases[i];\n const caseCompletions = _getCompletionRecords(casePath, context);\n const normalCompletions = [];\n const breakCompletions = [];\n for (const c of caseCompletions) {\n if (c.type === NORMAL_COMPLETION) {\n normalCompletions.push(c);\n }\n if (c.type === BREAK_COMPLETION) {\n breakCompletions.push(c);\n }\n }\n if (normalCompletions.length) {\n lastNormalCompletions = normalCompletions;\n }\n records.push(...breakCompletions);\n }\n records.push(...lastNormalCompletions);\n return records;\n}\n\nfunction normalCompletionToBreak(completions: Completion[]) {\n completions.forEach(c => {\n c.type = BREAK_COMPLETION;\n });\n}\n\n/**\n * Determine how we should handle the break statement for break completions\n *\n * @param {Completion[]} completions\n * @param {boolean} reachable Whether the break statement is reachable after\n we mark the normal completions _before_ the given break completions as the final\n completions. For example,\n `{ 0 }; break;` is transformed to `{ return 0 }; break;`, the `break` here is unreachable\n and thus can be removed without consequences. We may in thLine truncated
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = exports.SHOULD_STOP = exports.SHOULD_SKIP = exports.REMOVED = void 0;
var virtualTypes = require("./lib/virtual-types");
var _debug = require("debug");
var _index = require("../index");
var _scope = require("../scope");
var _t = require("@babel/types");
var t = _t;
var _cache = require("../cache");
var _generator = require("@babel/generator");
var NodePath_ancestry = require("./ancestry");
var NodePath_inference = require("./inference");
var NodePath_replacement = require("./replacement");
var NodePath_evaluation = require("./evaluation");
var NodePath_conversion = require("./conversion");
var NodePath_introspection = require("./introspection");
var NodePath_context = require("./context");
var NodePath_removal = require("./removal");
var NodePath_modification = require("./modification");
var NodePath_family = require("./family");
var NodePath_comments = require("./comments");
var NodePath_virtual_types_validator = require("./lib/virtual-types-validator");
const {
validate
} = _t;
const debug = _debug("babel");
const REMOVED = 1 << 0;
exports.REMOVED = REMOVED;
const SHOULD_STOP = 1 << 1;
exports.SHOULD_STOP = SHOULD_STOP;
const SHOULD_SKIP = 1 << 2;
exports.SHOULD_SKIP = SHOULD_SKIP;
class NodePath {
constructor(hub, parent) {
this.contexts = [];
this.state = null;
this.opts = null;
this._traverseFlags = 0;
this.skipKeys = null;
this.parentPath = null;
this.container = null;
this.listKey = null;
this.key = null;
this.node = null;
this.type = null;
this.parent = parent;
this.hub = hub;
this.data = null;
this.context = null;
this.scope = null;
}
static get({
hub,
parentPath,
parent,
container,
listKey,
key
}) {
if (!hub && parentPath) {
hub = parentPath.hub;
}
if (!parent) {
throw new Error("To get a node path the parent needs to exist");
}
const targetNode =
container[key];
let paths = _cache.path.get(parent);
if (!paths) {
paths = new Map();
_cache.path.set(parent, paths);
}
let path = paths.get(targetNode);
if (!path) {
path = new NodePath(hub, parent);
if (targetNode) paths.set(targetNode, path);
}
path.setup(parentPath, container, listKey, key);
return path;
}
getScope(scope) {
return this.isScope() ? new _scope.default(this) : scope;
}
setData(key, val) {
if (this.data == null) {
this.data = Object.create(null);
}
return this.data[key] = val;
}
getData(key, def) {
if (this.data == null) {
this.data = Object.create(null);
}
let val = this.data[key];
if (val === undefined && def !== undefined) val = this.data[key] = def;
return val;
}
hasNode() {
return this.node != null;
}
buildCodeFrameError(msg, Error = SyntaxError) {
return this.hub.buildError(this.node, msg, Error);
}
traverse(visitor, state) {
(0, _index.default)(this.node, visitor, this.scope, state, this);
}
set(key, node) {
validate(this.node, key, node);
this.node[key] = node;
}
getPathLocation() {
const parts = [];
let path = this;
do {
let key = path.key;
if (path.inList) key = `${path.listKey}[${key}]`;
parts.unshift(key);
} while (path = path.parentPath);
return parts.join(".");
}
debug(message) {
if (!debug.enabled) return;
debug(`${this.getPathLocation()} ${this.type}: ${message}`);
}
toString() {
return (0, _generator.default)(this.node).code;
}
get inList() {
return !!this.listKey;
}
set inList(inList) {
if (!inList) {
this.listKey = null;
}
}
get parentKey() {
return this.listKey || this.key;
}
get shouldSkip() {
return !!(this._traverseFlags & SHOULD_SKIP);
}
set shouldSkip(v) {
if (v) {
this._traverseFlags |= SHOULD_SKIP;
} else {
this._traverseFlags &= ~SHOULD_SKIP;
}
}
get shouldStop() {
return !!(this._traverseFlags & SHOULD_STOP);
}
set shouldStop(v) {
if (v) {
this._traverseFlags |= SHOULD_STOP;
} else {
this._traverseFlags &= ~SHOULD_STOP;
}
}
get removed() {
return !!(this._traverseFlags & REMOVED);
}
set removed(v) {
if (v) {
this._traverseFlags |= REMOVED;
} else {
this._traverseFlags &= ~REMOVED;
}
}
}
Object.assign(NodePath.prototype, NodePath_ancestry, NodePath_inference, NodePath_replacement, NodePath_evaluation, NodePath_conversion, NodePath_introspection, NodePath_context, NodePath_removal, NodePath_modification, NodePath_family, NodePath_comments);
{
NodePath.prototype._guessExecutionStatusRelativeToDifferentFunctions = NodePath_introspection._guessExecutionStatusRelativeTo;
}
for (const type of t.TYPES) {
const typeKey = `is${type}`;
const fn = t[typeKey];
NodePath.prototype[typeKey] = function (opts) {
return fn(this.node, opts);
};
NodePath.prototype[`assert${type}`] = function (opts) {
if (!fn(this.node, opts)) {
throw new TypeError(`Expected node path of type ${type}`);
}
};
}
Object.assign(NodePath.prototype, NodePath_virtual_types_validator);
for (const type of Object.keys(virtualTypes)) {
if (type[0] === "_") continue;
if (!t.TYPES.includes(type)) t.TYPES.push(type);
}
var _default = NodePath;
exports.default = _default;
//# sourceMappingURL=index.js.map
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@@ -0,0 +1 @@
{"version":3,"names":["validate","debug","buildDebug","REMOVED","SHOULD_STOP","SHOULD_SKIP","NodePath","constructor","hub","parent","contexts","state","opts","_traverseFlags","skipKeys","parentPath","container","listKey","key","node","type","data","context","scope","get","Error","targetNode","paths","pathCache","Map","set","path","setup","getScope","isScope","Scope","setData","val","Object","create","getData","def","undefined","hasNode","buildCodeFrameError","msg","SyntaxError","buildError","traverse","visitor","getPathLocation","parts","inList","unshift","join","message","enabled","toString","generator","code","parentKey","shouldSkip","v","shouldStop","removed","assign","prototype","NodePath_ancestry","NodePath_inference","NodePath_replacement","NodePath_evaluation","NodePath_conversion","NodePath_introspection","NodePath_context","NodePath_removal","NodePath_modification","NodePath_family","NodePath_comments","_guessExecutionStatusRelativeToDifferentFunctions","_guessExecutionStatusRelativeTo","t","TYPES","typeKey","fn","TypeError","NodePath_virtual_types_validator","keys","virtualTypes","includes","push"],"sources":["../../src/path/index.ts"],"sourcesContent":["import type { HubInterface } from \"../hub\";\nimport type TraversalContext from \"../context\";\nimport * as virtualTypes from \"./lib/virtual-types\";\nimport buildDebug from \"debug\";\nimport traverse from \"../index\";\nimport type { Visitor } from \"../types\";\nimport Scope from \"../scope\";\nimport { validate } from \"@babel/types\";\nimport * as t from \"@babel/types\";\nimport { path as pathCache } from \"../cache\";\nimport generator from \"@babel/generator\";\n\n// NodePath is split across many files.\nimport * as NodePath_ancestry from \"./ancestry\";\nimport * as NodePath_inference from \"./inference\";\nimport * as NodePath_replacement from \"./replacement\";\nimport * as NodePath_evaluation from \"./evaluation\";\nimport * as NodePath_conversion from \"./conversion\";\nimport * as NodePath_introspection from \"./introspection\";\nimport * as NodePath_context from \"./context\";\nimport * as NodePath_removal from \"./removal\";\nimport * as NodePath_modification from \"./modification\";\nimport * as NodePath_family from \"./family\";\nimport * as NodePath_comments from \"./comments\";\nimport * as NodePath_virtual_types_validator from \"./lib/virtual-types-validator\";\nimport type { NodePathAssetions } from \"./generated/asserts\";\nimport type { NodePathValidators } from \"./generated/validators\";\n\nconst debug = buildDebug(\"babel\");\n\nexport const REMOVED = 1 << 0;\nexport const SHOULD_STOP = 1 << 1;\nexport const SHOULD_SKIP = 1 << 2;\n\nclass NodePath<T extends t.Node = t.Node> {\n constructor(hub: HubInterface, parent: t.ParentMaps[T[\"type\"]]) {\n this.parent = parent;\n this.hub = hub;\n this.data = null;\n\n this.context = null;\n this.scope = null;\n }\n\n declare parent: t.ParentMaps[T[\"type\"]];\n declare hub: HubInterface;\n declare data: Record<string | symbol, unknown>;\n // TraversalContext is configured by setContext\n declare context: TraversalContext;\n declare scope: Scope;\n\n contexts: Array<TraversalContext> = [];\n state: any = null;\n opts: any = null;\n // this.shouldSkip = false; this.shouldStop = false; this.removed = false;\n _traverseFlags: number = 0;\n skipKeys: any = null;\n parentPath: t.ParentMaps[T[\"type\"]] extends null\n ? null\n : NodePath<t.ParentMaps[T[\"type\"]]> | null = null;\n container: t.Node | Array<t.Node> | null = null;\n listKey: string | null = null;\n key: string | number | null = null;\n node: T = null;\n type: T[\"type\"] | null = null;\n\n static get({\n hub,\n parentPath,\n parent,\n container,\n listKey,\n key,\n }: {\n hub?: HubInterface;\n parentPath: NodePath | null;\n parent: t.Node;\n container: t.Node | t.Node[];\n listKey?: string;\n key: string | number;\n }): NodePath {\n if (!hub && parentPath) {\n hub = parentPath.hub;\n }\n\n if (!parent) {\n throw new Error(\"To get a node path the parent needs to exist\");\n }\n\n const targetNode =\n // @ts-expect-error key must present in container\n container[key];\n\n let paths = pathCache.get(parent);\n if (!paths) {\n paths = new Map();\n pathCache.set(parent, paths);\n }\n\n let path = paths.get(targetNode);\n if (!path) {\n path = new NodePath(hub, parent);\n if (targetNode) paths.set(targetNode, path);\n }\n\n path.setup(parentPath, container, listKey, key);\n\n return path;\n }\n\n getScope(scope: Scope): Scope {\n return this.isScope() ? new Scope(this) : scope;\n }\n\n setData(key: string | symbol, val: any): any {\n if (this.data == null) {\n this.data = Object.create(null);\n }\n return (this.data[key] = val);\n }\n\n getData(key: string | symbol, def?: any): any {\n if (this.data == null) {\n this.data = Object.createLine truncated
+157
View File
@@ -0,0 +1,157 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports._getTypeAnnotation = _getTypeAnnotation;
exports.baseTypeStrictlyMatches = baseTypeStrictlyMatches;
exports.couldBeBaseType = couldBeBaseType;
exports.getTypeAnnotation = getTypeAnnotation;
exports.isBaseType = isBaseType;
exports.isGenericType = isGenericType;
var inferers = require("./inferers");
var _t = require("@babel/types");
const {
anyTypeAnnotation,
isAnyTypeAnnotation,
isArrayTypeAnnotation,
isBooleanTypeAnnotation,
isEmptyTypeAnnotation,
isFlowBaseAnnotation,
isGenericTypeAnnotation,
isIdentifier,
isMixedTypeAnnotation,
isNumberTypeAnnotation,
isStringTypeAnnotation,
isTSArrayType,
isTSTypeAnnotation,
isTSTypeReference,
isTupleTypeAnnotation,
isTypeAnnotation,
isUnionTypeAnnotation,
isVoidTypeAnnotation,
stringTypeAnnotation,
voidTypeAnnotation
} = _t;
function getTypeAnnotation() {
let type = this.getData("typeAnnotation");
if (type != null) {
return type;
}
type = this._getTypeAnnotation() || anyTypeAnnotation();
if (isTypeAnnotation(type) || isTSTypeAnnotation(type)) {
type = type.typeAnnotation;
}
this.setData("typeAnnotation", type);
return type;
}
const typeAnnotationInferringNodes = new WeakSet();
function _getTypeAnnotation() {
const node = this.node;
if (!node) {
if (this.key === "init" && this.parentPath.isVariableDeclarator()) {
const declar = this.parentPath.parentPath;
const declarParent = declar.parentPath;
if (declar.key === "left" && declarParent.isForInStatement()) {
return stringTypeAnnotation();
}
if (declar.key === "left" && declarParent.isForOfStatement()) {
return anyTypeAnnotation();
}
return voidTypeAnnotation();
} else {
return;
}
}
if (node.typeAnnotation) {
return node.typeAnnotation;
}
if (typeAnnotationInferringNodes.has(node)) {
return;
}
typeAnnotationInferringNodes.add(node);
try {
var _inferer;
let inferer =
inferers[node.type];
if (inferer) {
return inferer.call(this, node);
}
inferer = inferers[this.parentPath.type];
if ((_inferer = inferer) != null && _inferer.validParent) {
return this.parentPath.getTypeAnnotation();
}
} finally {
typeAnnotationInferringNodes.delete(node);
}
}
function isBaseType(baseName, soft) {
return _isBaseType(baseName, this.getTypeAnnotation(), soft);
}
function _isBaseType(baseName, type, soft) {
if (baseName === "string") {
return isStringTypeAnnotation(type);
} else if (baseName === "number") {
return isNumberTypeAnnotation(type);
} else if (baseName === "boolean") {
return isBooleanTypeAnnotation(type);
} else if (baseName === "any") {
return isAnyTypeAnnotation(type);
} else if (baseName === "mixed") {
return isMixedTypeAnnotation(type);
} else if (baseName === "empty") {
return isEmptyTypeAnnotation(type);
} else if (baseName === "void") {
return isVoidTypeAnnotation(type);
} else {
if (soft) {
return false;
} else {
throw new Error(`Unknown base type ${baseName}`);
}
}
}
function couldBeBaseType(name) {
const type = this.getTypeAnnotation();
if (isAnyTypeAnnotation(type)) return true;
if (isUnionTypeAnnotation(type)) {
for (const type2 of type.types) {
if (isAnyTypeAnnotation(type2) || _isBaseType(name, type2, true)) {
return true;
}
}
return false;
} else {
return _isBaseType(name, type, true);
}
}
function baseTypeStrictlyMatches(rightArg) {
const left = this.getTypeAnnotation();
const right = rightArg.getTypeAnnotation();
if (!isAnyTypeAnnotation(left) && isFlowBaseAnnotation(left)) {
return right.type === left.type;
}
return false;
}
function isGenericType(genericName) {
const type = this.getTypeAnnotation();
if (genericName === "Array") {
if (isTSArrayType(type) || isArrayTypeAnnotation(type) || isTupleTypeAnnotation(type)) {
return true;
}
}
return isGenericTypeAnnotation(type) && isIdentifier(type.id, {
name: genericName
}) || isTSTypeReference(type) && isIdentifier(type.typeName, {
name: genericName
});
}
//# sourceMappingURL=index.js.map
@@ -0,0 +1 @@
{"version":3,"names":["anyTypeAnnotation","isAnyTypeAnnotation","isArrayTypeAnnotation","isBooleanTypeAnnotation","isEmptyTypeAnnotation","isFlowBaseAnnotation","isGenericTypeAnnotation","isIdentifier","isMixedTypeAnnotation","isNumberTypeAnnotation","isStringTypeAnnotation","isTSArrayType","isTSTypeAnnotation","isTSTypeReference","isTupleTypeAnnotation","isTypeAnnotation","isUnionTypeAnnotation","isVoidTypeAnnotation","stringTypeAnnotation","voidTypeAnnotation","getTypeAnnotation","type","getData","_getTypeAnnotation","typeAnnotation","setData","typeAnnotationInferringNodes","WeakSet","node","key","parentPath","isVariableDeclarator","declar","declarParent","isForInStatement","isForOfStatement","has","add","inferer","inferers","call","validParent","delete","isBaseType","baseName","soft","_isBaseType","Error","couldBeBaseType","name","type2","types","baseTypeStrictlyMatches","rightArg","left","right","isGenericType","genericName","id","typeName"],"sources":["../../../src/path/inference/index.ts"],"sourcesContent":["import type NodePath from \"../index\";\nimport * as inferers from \"./inferers\";\nimport {\n anyTypeAnnotation,\n isAnyTypeAnnotation,\n isArrayTypeAnnotation,\n isBooleanTypeAnnotation,\n isEmptyTypeAnnotation,\n isFlowBaseAnnotation,\n isGenericTypeAnnotation,\n isIdentifier,\n isMixedTypeAnnotation,\n isNumberTypeAnnotation,\n isStringTypeAnnotation,\n isTSArrayType,\n isTSTypeAnnotation,\n isTSTypeReference,\n isTupleTypeAnnotation,\n isTypeAnnotation,\n isUnionTypeAnnotation,\n isVoidTypeAnnotation,\n stringTypeAnnotation,\n voidTypeAnnotation,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\n\n/**\n * Infer the type of the current `NodePath`.\n */\n\nexport function getTypeAnnotation(this: NodePath): t.FlowType | t.TSType {\n let type = this.getData(\"typeAnnotation\");\n if (type != null) {\n return type;\n }\n type = this._getTypeAnnotation() || anyTypeAnnotation();\n if (isTypeAnnotation(type) || isTSTypeAnnotation(type)) {\n type = type.typeAnnotation;\n }\n this.setData(\"typeAnnotation\", type);\n return type;\n}\n\n// Used to avoid infinite recursion in cases like\n// var b, c; if (0) { c = 1; b = c; } c = b;\n// It also works with indirect recursion.\nconst typeAnnotationInferringNodes = new WeakSet();\n\n/**\n * todo: split up this method\n */\n\nexport function _getTypeAnnotation(this: NodePath): any {\n const node = this.node;\n\n if (!node) {\n // handle initializerless variables, add in checks for loop initializers too\n if (this.key === \"init\" && this.parentPath.isVariableDeclarator()) {\n const declar = this.parentPath.parentPath;\n const declarParent = declar.parentPath;\n\n // for (let NODE in bar) {}\n if (declar.key === \"left\" && declarParent.isForInStatement()) {\n return stringTypeAnnotation();\n }\n\n // for (let NODE of bar) {}\n if (declar.key === \"left\" && declarParent.isForOfStatement()) {\n return anyTypeAnnotation();\n }\n\n return voidTypeAnnotation();\n } else {\n return;\n }\n }\n\n // @ts-expect-error typeAnnotation may not index node\n if (node.typeAnnotation) {\n // @ts-expect-error typeAnnotation may not index node\n return node.typeAnnotation;\n }\n\n if (typeAnnotationInferringNodes.has(node)) {\n // Bail out from type inference to avoid infinite loops\n return;\n }\n typeAnnotationInferringNodes.add(node);\n\n try {\n let inferer =\n // @ts-expect-error inferers do not cover all AST types\n inferers[node.type];\n if (inferer) {\n return inferer.call(this, node);\n }\n\n // @ts-expect-error inferers do not cover all AST types\n inferer = inferers[this.parentPath.type];\n if (inferer?.validParent) {\n return this.parentPath.getTypeAnnotation();\n }\n } finally {\n typeAnnotationInferringNodes.delete(node);\n }\n}\n\nexport function isBaseType(\n this: NodePath,\n baseName: string,\n soft?: boolean,\n): boolean {\n return _isBaseType(baseName, this.getTypeAnnotation(), soft);\n}\n\nfunction _isBaseType(\n baseName: string,\n type?: t.FlowType | t.TSType,\n soft?: boolean,\n): boolean {\n if (baseName === \"string\") {\n return isStringTypeAnnotation(type);\n } else if (baseName === \"number\") {\n return isNumberTypeAnnotation(type);\n } else if (baseName === \"boolean\") {\n return isBooleanTypeAnnotation(type);\n } else if (baseName === \"any\") {\n return isAnyTypeAnnotation(type);\n } else if (baseName === \"mixed\") {\n return isMixedTypeAnnotation(type);\n } else if (baseName === \"empty\") {\n return isEmptyTypeAnnotation(type);\n } else if (baseName === \"void\") {\n return isVoidTypeAnnotation(type);\n } else {\n if (soft) {\n return false;\n } else {\n throw new Error(`Unknown base type ${baseName}`);\n }\n }\n}\n\nexport function couldBeBaseType(this: NodePath, name: string): boolean {Line truncated
@@ -0,0 +1,163 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = _default;
var _t = require("@babel/types");
var _util = require("./util");
const {
BOOLEAN_NUMBER_BINARY_OPERATORS,
createTypeAnnotationBasedOnTypeof,
numberTypeAnnotation,
voidTypeAnnotation
} = _t;
function _default(node) {
if (!this.isReferenced()) return;
const binding = this.scope.getBinding(node.name);
if (binding) {
if (binding.identifier.typeAnnotation) {
return binding.identifier.typeAnnotation;
} else {
return getTypeAnnotationBindingConstantViolations(binding, this, node.name);
}
}
if (node.name === "undefined") {
return voidTypeAnnotation();
} else if (node.name === "NaN" || node.name === "Infinity") {
return numberTypeAnnotation();
} else if (node.name === "arguments") {
}
}
function getTypeAnnotationBindingConstantViolations(binding, path, name) {
const types = [];
const functionConstantViolations = [];
let constantViolations = getConstantViolationsBefore(binding, path, functionConstantViolations);
const testType = getConditionalAnnotation(binding, path, name);
if (testType) {
const testConstantViolations = getConstantViolationsBefore(binding, testType.ifStatement);
constantViolations = constantViolations.filter(path => testConstantViolations.indexOf(path) < 0);
types.push(testType.typeAnnotation);
}
if (constantViolations.length) {
constantViolations.push(...functionConstantViolations);
for (const violation of constantViolations) {
types.push(violation.getTypeAnnotation());
}
}
if (!types.length) {
return;
}
return (0, _util.createUnionType)(types);
}
function getConstantViolationsBefore(binding, path, functions) {
const violations = binding.constantViolations.slice();
violations.unshift(binding.path);
return violations.filter(violation => {
violation = violation.resolve();
const status = violation._guessExecutionStatusRelativeTo(path);
if (functions && status === "unknown") functions.push(violation);
return status === "before";
});
}
function inferAnnotationFromBinaryExpression(name, path) {
const operator = path.node.operator;
const right = path.get("right").resolve();
const left = path.get("left").resolve();
let target;
if (left.isIdentifier({
name
})) {
target = right;
} else if (right.isIdentifier({
name
})) {
target = left;
}
if (target) {
if (operator === "===") {
return target.getTypeAnnotation();
}
if (BOOLEAN_NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {
return numberTypeAnnotation();
}
return;
}
if (operator !== "===" && operator !== "==") return;
let typeofPath;
let typePath;
if (left.isUnaryExpression({
operator: "typeof"
})) {
typeofPath = left;
typePath = right;
} else if (right.isUnaryExpression({
operator: "typeof"
})) {
typeofPath = right;
typePath = left;
}
if (!typeofPath) return;
if (!typeofPath.get("argument").isIdentifier({
name
})) return;
typePath = typePath.resolve();
if (!typePath.isLiteral()) return;
const typeValue = typePath.node.value;
if (typeof typeValue !== "string") return;
return createTypeAnnotationBasedOnTypeof(typeValue);
}
function getParentConditionalPath(binding, path, name) {
let parentPath;
while (parentPath = path.parentPath) {
if (parentPath.isIfStatement() || parentPath.isConditionalExpression()) {
if (path.key === "test") {
return;
}
return parentPath;
}
if (parentPath.isFunction()) {
if (parentPath.parentPath.scope.getBinding(name) !== binding) return;
}
path = parentPath;
}
}
function getConditionalAnnotation(binding, path, name) {
const ifStatement = getParentConditionalPath(binding, path, name);
if (!ifStatement) return;
const test = ifStatement.get("test");
const paths = [test];
const types = [];
for (let i = 0; i < paths.length; i++) {
const path = paths[i];
if (path.isLogicalExpression()) {
if (path.node.operator === "&&") {
paths.push(path.get("left"));
paths.push(path.get("right"));
}
} else if (path.isBinaryExpression()) {
const type = inferAnnotationFromBinaryExpression(name, path);
if (type) types.push(type);
}
}
if (types.length) {
return {
typeAnnotation: (0, _util.createUnionType)(types),
ifStatement
};
}
return getConditionalAnnotation(binding, ifStatement, name);
}
//# sourceMappingURL=inferer-reference.js.map
@@ -0,0 +1 @@
{"version":3,"names":["BOOLEAN_NUMBER_BINARY_OPERATORS","createTypeAnnotationBasedOnTypeof","numberTypeAnnotation","voidTypeAnnotation","node","isReferenced","binding","scope","getBinding","name","identifier","typeAnnotation","getTypeAnnotationBindingConstantViolations","path","types","functionConstantViolations","constantViolations","getConstantViolationsBefore","testType","getConditionalAnnotation","testConstantViolations","ifStatement","filter","indexOf","push","length","violation","getTypeAnnotation","createUnionType","functions","violations","slice","unshift","resolve","status","_guessExecutionStatusRelativeTo","inferAnnotationFromBinaryExpression","operator","right","get","left","target","isIdentifier","typeofPath","typePath","isUnaryExpression","isLiteral","typeValue","value","getParentConditionalPath","parentPath","isIfStatement","isConditionalExpression","key","isFunction","test","paths","i","isLogicalExpression","isBinaryExpression","type"],"sources":["../../../src/path/inference/inferer-reference.ts"],"sourcesContent":["import type NodePath from \"../index\";\nimport {\n BOOLEAN_NUMBER_BINARY_OPERATORS,\n createTypeAnnotationBasedOnTypeof,\n numberTypeAnnotation,\n voidTypeAnnotation,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport type Binding from \"../../scope/binding\";\n\nimport { createUnionType } from \"./util\";\n\nexport default function (this: NodePath<t.Identifier>, node: t.Identifier) {\n if (!this.isReferenced()) return;\n\n // check if a binding exists of this value and if so then return a union type of all\n // possible types that the binding could be\n const binding = this.scope.getBinding(node.name);\n if (binding) {\n if (binding.identifier.typeAnnotation) {\n return binding.identifier.typeAnnotation;\n } else {\n return getTypeAnnotationBindingConstantViolations(\n binding,\n this,\n node.name,\n );\n }\n }\n\n // built-in values\n if (node.name === \"undefined\") {\n return voidTypeAnnotation();\n } else if (node.name === \"NaN\" || node.name === \"Infinity\") {\n return numberTypeAnnotation();\n } else if (node.name === \"arguments\") {\n // todo\n }\n}\n\nfunction getTypeAnnotationBindingConstantViolations(\n binding: Binding,\n path: NodePath<t.Identifier>,\n name: string,\n) {\n const types = [];\n\n const functionConstantViolations: NodePath[] = [];\n let constantViolations = getConstantViolationsBefore(\n binding,\n path,\n functionConstantViolations,\n );\n\n const testType = getConditionalAnnotation(binding, path, name);\n if (testType) {\n const testConstantViolations = getConstantViolationsBefore(\n binding,\n testType.ifStatement,\n );\n\n // remove constant violations observed before the IfStatement\n constantViolations = constantViolations.filter(\n path => testConstantViolations.indexOf(path) < 0,\n );\n\n // clear current types and add in observed test type\n types.push(testType.typeAnnotation);\n }\n\n if (constantViolations.length) {\n // pick one constant from each scope which will represent the last possible\n // control flow path that it could've taken/been\n /* This code is broken for the following problems:\n * It thinks that assignments can only happen in scopes.\n * What about conditionals, if statements without block,\n * or guarded assignments.\n * It also checks to see if one of the assignments is in the\n * same scope and uses that as the only \"violation\". However,\n * the binding is returned by `getConstantViolationsBefore` so we for\n * sure always going to return that as the only \"violation\".\n let rawConstantViolations = constantViolations.reverse();\n let visitedScopes = [];\n constantViolations = [];\n for (let violation of (rawConstantViolations: Array<NodePath>)) {\n let violationScope = violation.scope;\n if (visitedScopes.indexOf(violationScope) >= 0) continue;\n\n visitedScopes.push(violationScope);\n constantViolations.push(violation);\n\n if (violationScope === path.scope) {\n constantViolations = [violation];\n break;\n }\n }*/\n\n // add back on function constant violations since we can't track calls\n constantViolations.push(...functionConstantViolations);\n\n // push on inferred types of violated paths\n for (const violation of constantViolations) {\n types.push(violation.getTypeAnnotation());\n }\n }\n\n if (!types.length) {\n return;\n }\n\n return createUnionType(types);\n}\n\nfunction getConstantViolationsBefore(\n binding: Binding,\n path: NodePath,\n functions?: NodePath[],\n) {\n const violations = binding.constantViolations.slice();\n violations.unshift(binding.path);\n return violations.filter(violation => {\n violation = violation.resolve();\n const status = violation._guessExecutionStatusRelativeTo(path);\n if (functions && statusLine truncated
+210
View File
@@ -0,0 +1,210 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.ArrayExpression = ArrayExpression;
exports.AssignmentExpression = AssignmentExpression;
exports.BinaryExpression = BinaryExpression;
exports.BooleanLiteral = BooleanLiteral;
exports.CallExpression = CallExpression;
exports.ConditionalExpression = ConditionalExpression;
exports.ClassDeclaration = exports.ClassExpression = exports.FunctionDeclaration = exports.ArrowFunctionExpression = exports.FunctionExpression = Func;
Object.defineProperty(exports, "Identifier", {
enumerable: true,
get: function () {
return _infererReference.default;
}
});
exports.LogicalExpression = LogicalExpression;
exports.NewExpression = NewExpression;
exports.NullLiteral = NullLiteral;
exports.NumericLiteral = NumericLiteral;
exports.ObjectExpression = ObjectExpression;
exports.ParenthesizedExpression = ParenthesizedExpression;
exports.RegExpLiteral = RegExpLiteral;
exports.RestElement = RestElement;
exports.SequenceExpression = SequenceExpression;
exports.StringLiteral = StringLiteral;
exports.TSAsExpression = TSAsExpression;
exports.TSNonNullExpression = TSNonNullExpression;
exports.TaggedTemplateExpression = TaggedTemplateExpression;
exports.TemplateLiteral = TemplateLiteral;
exports.TypeCastExpression = TypeCastExpression;
exports.UnaryExpression = UnaryExpression;
exports.UpdateExpression = UpdateExpression;
exports.VariableDeclarator = VariableDeclarator;
var _t = require("@babel/types");
var _infererReference = require("./inferer-reference");
var _util = require("./util");
const {
BOOLEAN_BINARY_OPERATORS,
BOOLEAN_UNARY_OPERATORS,
NUMBER_BINARY_OPERATORS,
NUMBER_UNARY_OPERATORS,
STRING_UNARY_OPERATORS,
anyTypeAnnotation,
arrayTypeAnnotation,
booleanTypeAnnotation,
buildMatchMemberExpression,
genericTypeAnnotation,
identifier,
nullLiteralTypeAnnotation,
numberTypeAnnotation,
stringTypeAnnotation,
tupleTypeAnnotation,
unionTypeAnnotation,
voidTypeAnnotation,
isIdentifier
} = _t;
function VariableDeclarator() {
if (!this.get("id").isIdentifier()) return;
return this.get("init").getTypeAnnotation();
}
function TypeCastExpression(node) {
return node.typeAnnotation;
}
TypeCastExpression.validParent = true;
function TSAsExpression(node) {
return node.typeAnnotation;
}
TSAsExpression.validParent = true;
function TSNonNullExpression() {
return this.get("expression").getTypeAnnotation();
}
function NewExpression(node) {
if (node.callee.type === "Identifier") {
return genericTypeAnnotation(node.callee);
}
}
function TemplateLiteral() {
return stringTypeAnnotation();
}
function UnaryExpression(node) {
const operator = node.operator;
if (operator === "void") {
return voidTypeAnnotation();
} else if (NUMBER_UNARY_OPERATORS.indexOf(operator) >= 0) {
return numberTypeAnnotation();
} else if (STRING_UNARY_OPERATORS.indexOf(operator) >= 0) {
return stringTypeAnnotation();
} else if (BOOLEAN_UNARY_OPERATORS.indexOf(operator) >= 0) {
return booleanTypeAnnotation();
}
}
function BinaryExpression(node) {
const operator = node.operator;
if (NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {
return numberTypeAnnotation();
} else if (BOOLEAN_BINARY_OPERATORS.indexOf(operator) >= 0) {
return booleanTypeAnnotation();
} else if (operator === "+") {
const right = this.get("right");
const left = this.get("left");
if (left.isBaseType("number") && right.isBaseType("number")) {
return numberTypeAnnotation();
} else if (left.isBaseType("string") || right.isBaseType("string")) {
return stringTypeAnnotation();
}
return unionTypeAnnotation([stringTypeAnnotation(), numberTypeAnnotation()]);
}
}
function LogicalExpression() {
const argumentTypes = [this.get("left").getTypeAnnotation(), this.get("right").getTypeAnnotation()];
return (0, _util.createUnionType)(argumentTypes);
}
function ConditionalExpression() {
const argumentTypes = [this.get("consequent").getTypeAnnotation(), this.get("alternate").getTypeAnnotation()];
return (0, _util.createUnionType)(argumentTypes);
}
function SequenceExpression() {
return this.get("expressions").pop().getTypeAnnotation();
}
function ParenthesizedExpression() {
return this.get("expression").getTypeAnnotation();
}
function AssignmentExpression() {
return this.get("right").getTypeAnnotation();
}
function UpdateExpression(node) {
const operator = node.operator;
if (operator === "++" || operator === "--") {
return numberTypeAnnotation();
}
}
function StringLiteral() {
return stringTypeAnnotation();
}
function NumericLiteral() {
return numberTypeAnnotation();
}
function BooleanLiteral() {
return booleanTypeAnnotation();
}
function NullLiteral() {
return nullLiteralTypeAnnotation();
}
function RegExpLiteral() {
return genericTypeAnnotation(identifier("RegExp"));
}
function ObjectExpression() {
return genericTypeAnnotation(identifier("Object"));
}
function ArrayExpression() {
return genericTypeAnnotation(identifier("Array"));
}
function RestElement() {
return ArrayExpression();
}
RestElement.validParent = true;
function Func() {
return genericTypeAnnotation(identifier("Function"));
}
const isArrayFrom = buildMatchMemberExpression("Array.from");
const isObjectKeys = buildMatchMemberExpression("Object.keys");
const isObjectValues = buildMatchMemberExpression("Object.values");
const isObjectEntries = buildMatchMemberExpression("Object.entries");
function CallExpression() {
const {
callee
} = this.node;
if (isObjectKeys(callee)) {
return arrayTypeAnnotation(stringTypeAnnotation());
} else if (isArrayFrom(callee) || isObjectValues(callee) ||
isIdentifier(callee, {
name: "Array"
})) {
return arrayTypeAnnotation(anyTypeAnnotation());
} else if (isObjectEntries(callee)) {
return arrayTypeAnnotation(tupleTypeAnnotation([stringTypeAnnotation(), anyTypeAnnotation()]));
}
return resolveCall(this.get("callee"));
}
function TaggedTemplateExpression() {
return resolveCall(this.get("tag"));
}
function resolveCall(callee) {
callee = callee.resolve();
if (callee.isFunction()) {
const {
node
} = callee;
if (node.async) {
if (node.generator) {
return genericTypeAnnotation(identifier("AsyncIterator"));
} else {
return genericTypeAnnotation(identifier("Promise"));
}
} else {
if (node.generator) {
return genericTypeAnnotation(identifier("Iterator"));
} else if (callee.node.returnType) {
return callee.node.returnType;
} else {
}
}
}
}
//# sourceMappingURL=inferers.js.map
@@ -0,0 +1 @@
{"version":3,"names":["BOOLEAN_BINARY_OPERATORS","BOOLEAN_UNARY_OPERATORS","NUMBER_BINARY_OPERATORS","NUMBER_UNARY_OPERATORS","STRING_UNARY_OPERATORS","anyTypeAnnotation","arrayTypeAnnotation","booleanTypeAnnotation","buildMatchMemberExpression","genericTypeAnnotation","identifier","nullLiteralTypeAnnotation","numberTypeAnnotation","stringTypeAnnotation","tupleTypeAnnotation","unionTypeAnnotation","voidTypeAnnotation","isIdentifier","VariableDeclarator","get","getTypeAnnotation","TypeCastExpression","node","typeAnnotation","validParent","TSAsExpression","TSNonNullExpression","NewExpression","callee","type","TemplateLiteral","UnaryExpression","operator","indexOf","BinaryExpression","right","left","isBaseType","LogicalExpression","argumentTypes","createUnionType","ConditionalExpression","SequenceExpression","pop","ParenthesizedExpression","AssignmentExpression","UpdateExpression","StringLiteral","NumericLiteral","BooleanLiteral","NullLiteral","RegExpLiteral","ObjectExpression","ArrayExpression","RestElement","Func","isArrayFrom","isObjectKeys","isObjectValues","isObjectEntries","CallExpression","name","resolveCall","TaggedTemplateExpression","resolve","isFunction","async","generator","returnType"],"sources":["../../../src/path/inference/inferers.ts"],"sourcesContent":["import {\n BOOLEAN_BINARY_OPERATORS,\n BOOLEAN_UNARY_OPERATORS,\n NUMBER_BINARY_OPERATORS,\n NUMBER_UNARY_OPERATORS,\n STRING_UNARY_OPERATORS,\n anyTypeAnnotation,\n arrayTypeAnnotation,\n booleanTypeAnnotation,\n buildMatchMemberExpression,\n genericTypeAnnotation,\n identifier,\n nullLiteralTypeAnnotation,\n numberTypeAnnotation,\n stringTypeAnnotation,\n tupleTypeAnnotation,\n unionTypeAnnotation,\n voidTypeAnnotation,\n isIdentifier,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\n\nexport { default as Identifier } from \"./inferer-reference\";\n\nimport { createUnionType } from \"./util\";\nimport type NodePath from \"..\";\n\nexport function VariableDeclarator(this: NodePath<t.VariableDeclarator>) {\n if (!this.get(\"id\").isIdentifier()) return;\n return this.get(\"init\").getTypeAnnotation();\n}\n\nexport function TypeCastExpression(node: t.TypeCastExpression) {\n return node.typeAnnotation;\n}\n\nTypeCastExpression.validParent = true;\n\nexport function TSAsExpression(node: t.TSAsExpression) {\n return node.typeAnnotation;\n}\n\nTSAsExpression.validParent = true;\n\nexport function TSNonNullExpression(this: NodePath<t.TSNonNullExpression>) {\n return this.get(\"expression\").getTypeAnnotation();\n}\n\nexport function NewExpression(\n this: NodePath<t.NewExpression>,\n node: t.NewExpression,\n) {\n if (node.callee.type === \"Identifier\") {\n // only resolve identifier callee\n return genericTypeAnnotation(node.callee);\n }\n}\n\nexport function TemplateLiteral() {\n return stringTypeAnnotation();\n}\n\nexport function UnaryExpression(node: t.UnaryExpression) {\n const operator = node.operator;\n\n if (operator === \"void\") {\n return voidTypeAnnotation();\n } else if (NUMBER_UNARY_OPERATORS.indexOf(operator) >= 0) {\n return numberTypeAnnotation();\n } else if (STRING_UNARY_OPERATORS.indexOf(operator) >= 0) {\n return stringTypeAnnotation();\n } else if (BOOLEAN_UNARY_OPERATORS.indexOf(operator) >= 0) {\n return booleanTypeAnnotation();\n }\n}\n\nexport function BinaryExpression(\n this: NodePath<t.BinaryExpression>,\n node: t.BinaryExpression,\n) {\n const operator = node.operator;\n\n if (NUMBER_BINARY_OPERATORS.indexOf(operator) >= 0) {\n return numberTypeAnnotation();\n } else if (BOOLEAN_BINARY_OPERATORS.indexOf(operator) >= 0) {\n return booleanTypeAnnotation();\n } else if (operator === \"+\") {\n const right = this.get(\"right\");\n const left = this.get(\"left\");\n\n if (left.isBaseType(\"number\") && right.isBaseType(\"number\")) {\n // both numbers so this will be a number\n return numberTypeAnnotation();\n } else if (left.isBaseType(\"string\") || right.isBaseType(\"string\")) {\n // one is a string so the result will be a string\n return stringTypeAnnotation();\n }\n\n // unsure if left and right are strings or numbers so stay on the safe side\n return unionTypeAnnotation([\n stringTypeAnnotation(),\n numberTypeAnnotation(),\n ]);\n }\n}\n\nexport function LogicalExpression(this: NodePath<t.LogicalExpression>) {\n const argumentTypes = [\n this.get(\"left\").getTypeAnnotation(),\n this.get(\"right\").getTypeAnnotation(),\n ];\n\n return createUnionType(argumentTypes);\n}\n\nexport function ConditionalExpression(this: NodePath<t.ConditionalExpression>) {\n const argumentTypes = [\n this.get(\"consequent\").getTypeAnnotation(),\n this.get(\"alternate\").getTypeAnnotation(),\n ];\n\n return createUnionType(argumentTypes);\n}\n\nexport function SequenceExpression(this: NodePath<t.SequenceExpression>) {\n return this.get(\"expressions\").pop().getTypeAnnotation();\n}\Line truncated
+30
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@@ -0,0 +1,30 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.createUnionType = createUnionType;
var _t = require("@babel/types");
const {
createFlowUnionType,
createTSUnionType,
createUnionTypeAnnotation,
isFlowType,
isTSType
} = _t;
function createUnionType(types) {
{
if (isFlowType(types[0])) {
if (createFlowUnionType) {
return createFlowUnionType(types);
}
return createUnionTypeAnnotation(types);
} else {
if (createTSUnionType) {
return createTSUnionType(types);
}
}
}
}
//# sourceMappingURL=util.js.map
@@ -0,0 +1 @@
{"version":3,"names":["createFlowUnionType","createTSUnionType","createUnionTypeAnnotation","isFlowType","isTSType","createUnionType","types"],"sources":["../../../src/path/inference/util.ts"],"sourcesContent":["import {\n createFlowUnionType,\n createTSUnionType,\n createUnionTypeAnnotation,\n isFlowType,\n isTSType,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\n\nexport function createUnionType(\n types: Array<t.FlowType | t.TSType>,\n): t.FlowType | t.TSType {\n if (process.env.BABEL_8_BREAKING) {\n if (isFlowType(types[0])) {\n return createFlowUnionType(types as t.FlowType[]);\n }\n if (isTSType(types[0])) {\n return createTSUnionType(types as t.TSType[]);\n }\n } else {\n if (isFlowType(types[0])) {\n if (createFlowUnionType) {\n return createFlowUnionType(types as t.FlowType[]);\n }\n\n return createUnionTypeAnnotation(types as t.FlowType[]);\n } else {\n if (createTSUnionType) {\n return createTSUnionType(types as t.TSType[]);\n }\n }\n }\n}\n"],"mappings":";;;;;;AAAA;AAMsB;EALpBA,mBAAmB;EACnBC,iBAAiB;EACjBC,yBAAyB;EACzBC,UAAU;EACVC;AAAQ;AAIH,SAASC,eAAe,CAC7BC,KAAmC,EACZ;EAQhB;IACL,IAAIH,UAAU,CAACG,KAAK,CAAC,CAAC,CAAC,CAAC,EAAE;MACxB,IAAIN,mBAAmB,EAAE;QACvB,OAAOA,mBAAmB,CAACM,KAAK,CAAiB;MACnD;MAEA,OAAOJ,yBAAyB,CAACI,KAAK,CAAiB;IACzD,CAAC,MAAM;MACL,IAAIL,iBAAiB,EAAE;QACrB,OAAOA,iBAAiB,CAACK,KAAK,CAAe;MAC/C;IACF;EACF;AACF"}
+426
View File
@@ -0,0 +1,426 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports._guessExecutionStatusRelativeTo = _guessExecutionStatusRelativeTo;
exports._resolve = _resolve;
exports.canHaveVariableDeclarationOrExpression = canHaveVariableDeclarationOrExpression;
exports.canSwapBetweenExpressionAndStatement = canSwapBetweenExpressionAndStatement;
exports.equals = equals;
exports.getSource = getSource;
exports.has = has;
exports.is = void 0;
exports.isCompletionRecord = isCompletionRecord;
exports.isConstantExpression = isConstantExpression;
exports.isInStrictMode = isInStrictMode;
exports.isNodeType = isNodeType;
exports.isStatementOrBlock = isStatementOrBlock;
exports.isStatic = isStatic;
exports.isnt = isnt;
exports.matchesPattern = matchesPattern;
exports.referencesImport = referencesImport;
exports.resolve = resolve;
exports.willIMaybeExecuteBefore = willIMaybeExecuteBefore;
var _t = require("@babel/types");
const {
STATEMENT_OR_BLOCK_KEYS,
VISITOR_KEYS,
isBlockStatement,
isExpression,
isIdentifier,
isLiteral,
isStringLiteral,
isType,
matchesPattern: _matchesPattern
} = _t;
function matchesPattern(pattern, allowPartial) {
return _matchesPattern(this.node, pattern, allowPartial);
}
function has(key) {
const val = this.node && this.node[key];
if (val && Array.isArray(val)) {
return !!val.length;
} else {
return !!val;
}
}
function isStatic() {
return this.scope.isStatic(this.node);
}
const is = has;
exports.is = is;
function isnt(key) {
return !this.has(key);
}
function equals(key, value) {
return this.node[key] === value;
}
function isNodeType(type) {
return isType(this.type, type);
}
function canHaveVariableDeclarationOrExpression() {
return (this.key === "init" || this.key === "left") && this.parentPath.isFor();
}
function canSwapBetweenExpressionAndStatement(replacement) {
if (this.key !== "body" || !this.parentPath.isArrowFunctionExpression()) {
return false;
}
if (this.isExpression()) {
return isBlockStatement(replacement);
} else if (this.isBlockStatement()) {
return isExpression(replacement);
}
return false;
}
function isCompletionRecord(allowInsideFunction) {
let path = this;
let first = true;
do {
const {
type,
container
} = path;
if (!first && (path.isFunction() || type === "StaticBlock")) {
return !!allowInsideFunction;
}
first = false;
if (Array.isArray(container) && path.key !== container.length - 1) {
return false;
}
} while ((path = path.parentPath) && !path.isProgram() && !path.isDoExpression());
return true;
}
function isStatementOrBlock() {
if (this.parentPath.isLabeledStatement() || isBlockStatement(this.container)) {
return false;
} else {
return STATEMENT_OR_BLOCK_KEYS.includes(this.key);
}
}
function referencesImport(moduleSource, importName) {
if (!this.isReferencedIdentifier()) {
if (this.isJSXMemberExpression() && this.node.property.name === importName || (this.isMemberExpression() || this.isOptionalMemberExpression()) && (this.node.computed ? isStringLiteral(this.node.property, {
value: importName
}) : this.node.property.name === importName)) {
const object = this.get("object");
return object.isReferencedIdentifier() && object.referencesImport(moduleSource, "*");
}
return false;
}
const binding = this.scope.getBinding(this.node.name);
if (!binding || binding.kind !== "module") return false;
const path = binding.path;
const parent = path.parentPath;
if (!parent.isImportDeclaration()) return false;
if (parent.node.source.value === moduleSource) {
if (!importName) return true;
} else {
return false;
}
if (path.isImportDefaultSpecifier() && importName === "default") {
return true;
}
if (path.isImportNamespaceSpecifier() && importName === "*") {
return true;
}
if (path.isImportSpecifier() && isIdentifier(path.node.imported, {
name: importName
})) {
return true;
}
return false;
}
function getSource() {
const node = this.node;
if (node.end) {
const code = this.hub.getCode();
if (code) return code.slice(node.start, node.end);
}
return "";
}
function willIMaybeExecuteBefore(target) {
return this._guessExecutionStatusRelativeTo(target) !== "after";
}
function getOuterFunction(path) {
return (path.scope.getFunctionParent() || path.scope.getProgramParent()).path;
}
function isExecutionUncertain(type, key) {
switch (type) {
case "LogicalExpression":
return key === "right";
case "ConditionalExpression":
case "IfStatement":
return key === "consequent" || key === "alternate";
case "WhileStatement":
case "DoWhileStatement":
case "ForInStatement":
case "ForOfStatement":
return key === "body";
case "ForStatement":
return key === "body" || key === "update";
case "SwitchStatement":
return key === "cases";
case "TryStatement":
return key === "handler";
case "AssignmentPattern":
return key === "right";
case "OptionalMemberExpression":
return key === "property";
case "OptionalCallExpression":
return key === "arguments";
default:
return false;
}
}
function isExecutionUncertainInList(paths, maxIndex) {
for (let i = 0; i < maxIndex; i++) {
const path = paths[i];
if (isExecutionUncertain(path.parent.type, path.parentKey)) {
return true;
}
}
return false;
}
function _guessExecutionStatusRelativeTo(target) {
return _guessExecutionStatusRelativeToCached(this, target, new Map());
}
function _guessExecutionStatusRelativeToCached(base, target, cache) {
const funcParent = {
this: getOuterFunction(base),
target: getOuterFunction(target)
};
if (funcParent.target.node !== funcParent.this.node) {
return _guessExecutionStatusRelativeToDifferentFunctionsCached(base, funcParent.target, cache);
}
const paths = {
target: target.getAncestry(),
this: base.getAncestry()
};
if (paths.target.indexOf(base) >= 0) return "after";
if (paths.this.indexOf(target) >= 0) return "before";
let commonPath;
const commonIndex = {
target: 0,
this: 0
};
while (!commonPath && commonIndex.this < paths.this.length) {
const path = paths.this[commonIndex.this];
commonIndex.target = paths.target.indexOf(path);
if (commonIndex.target >= 0) {
commonPath = path;
} else {
commonIndex.this++;
}
}
if (!commonPath) {
throw new Error("Internal Babel error - The two compared nodes" + " don't appear to belong to the same program.");
}
if (isExecutionUncertainInList(paths.this, commonIndex.this - 1) || isExecutionUncertainInList(paths.target, commonIndex.target - 1)) {
return "unknown";
}
const divergence = {
this: paths.this[commonIndex.this - 1],
target: paths.target[commonIndex.target - 1]
};
if (divergence.target.listKey && divergence.this.listKey && divergence.target.container === divergence.this.container) {
return divergence.target.key > divergence.this.key ? "before" : "after";
}
const keys = VISITOR_KEYS[commonPath.type];
const keyPosition = {
this: keys.indexOf(divergence.this.parentKey),
target: keys.indexOf(divergence.target.parentKey)
};
return keyPosition.target > keyPosition.this ? "before" : "after";
}
const executionOrderCheckedNodes = new Set();
function _guessExecutionStatusRelativeToDifferentFunctionsInternal(base, target, cache) {
if (!target.isFunctionDeclaration() || target.parentPath.isExportDeclaration()) {
return "unknown";
}
const binding = target.scope.getBinding(target.node.id.name);
if (!binding.references) return "before";
const referencePaths = binding.referencePaths;
let allStatus;
for (const path of referencePaths) {
const childOfFunction = !!path.find(path => path.node === target.node);
if (childOfFunction) continue;
if (path.key !== "callee" || !path.parentPath.isCallExpression()) {
return "unknown";
}
if (executionOrderCheckedNodes.has(path.node)) continue;
executionOrderCheckedNodes.add(path.node);
try {
const status = _guessExecutionStatusRelativeToCached(base, path, cache);
if (allStatus && allStatus !== status) {
return "unknown";
} else {
allStatus = status;
}
} finally {
executionOrderCheckedNodes.delete(path.node);
}
}
return allStatus;
}
function _guessExecutionStatusRelativeToDifferentFunctionsCached(base, target, cache) {
let nodeMap = cache.get(base.node);
if (!nodeMap) {
cache.set(base.node, nodeMap = new Map());
} else if (nodeMap.has(target.node)) {
return nodeMap.get(target.node);
}
const result = _guessExecutionStatusRelativeToDifferentFunctionsInternal(base, target, cache);
nodeMap.set(target.node, result);
return result;
}
function resolve(dangerous, resolved) {
return this._resolve(dangerous, resolved) || this;
}
function _resolve(dangerous, resolved) {
if (resolved && resolved.indexOf(this) >= 0) return;
resolved = resolved || [];
resolved.push(this);
if (this.isVariableDeclarator()) {
if (this.get("id").isIdentifier()) {
return this.get("init").resolve(dangerous, resolved);
} else {
}
} else if (this.isReferencedIdentifier()) {
const binding = this.scope.getBinding(this.node.name);
if (!binding) return;
if (!binding.constant) return;
if (binding.kind === "module") return;
if (binding.path !== this) {
const ret = binding.path.resolve(dangerous, resolved);
if (this.find(parent => parent.node === ret.node)) return;
return ret;
}
} else if (this.isTypeCastExpression()) {
return this.get("expression").resolve(dangerous, resolved);
} else if (dangerous && this.isMemberExpression()) {
const targetKey = this.toComputedKey();
if (!isLiteral(targetKey)) return;
const targetName = targetKey.value;
const target = this.get("object").resolve(dangerous, resolved);
if (target.isObjectExpression()) {
const props = target.get("properties");
for (const prop of props) {
if (!prop.isProperty()) continue;
const key = prop.get("key");
let match = prop.isnt("computed") && key.isIdentifier({
name: targetName
});
match = match || key.isLiteral({
value: targetName
});
if (match) return prop.get("value").resolve(dangerous, resolved);
}
} else if (target.isArrayExpression() && !isNaN(+targetName)) {
const elems = target.get("elements");
const elem = elems[targetName];
if (elem) return elem.resolve(dangerous, resolved);
}
}
}
function isConstantExpression() {
if (this.isIdentifier()) {
const binding = this.scope.getBinding(this.node.name);
if (!binding) return false;
return binding.constant;
}
if (this.isLiteral()) {
if (this.isRegExpLiteral()) {
return false;
}
if (this.isTemplateLiteral()) {
return this.get("expressions").every(expression => expression.isConstantExpression());
}
return true;
}
if (this.isUnaryExpression()) {
if (this.node.operator !== "void") {
return false;
}
return this.get("argument").isConstantExpression();
}
if (this.isBinaryExpression()) {
const {
operator
} = this.node;
return operator !== "in" && operator !== "instanceof" && this.get("left").isConstantExpression() && this.get("right").isConstantExpression();
}
return false;
}
function isInStrictMode() {
const start = this.isProgram() ? this : this.parentPath;
const strictParent = start.find(path => {
if (path.isProgram({
sourceType: "module"
})) return true;
if (path.isClass()) return true;
if (path.isArrowFunctionExpression() && !path.get("body").isBlockStatement()) {
return false;
}
let body;
if (path.isFunction()) {
body = path.node.body;
} else if (path.isProgram()) {
body = path.node;
} else {
return false;
}
for (const directive of body.directives) {
if (directive.value.value === "use strict") {
return true;
}
}
});
return !!strictParent;
}
//# sourceMappingURL=introspection.js.map
+1
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@@ -0,0 +1 @@
{"version":3,"names":["STATEMENT_OR_BLOCK_KEYS","VISITOR_KEYS","isBlockStatement","isExpression","isIdentifier","isLiteral","isStringLiteral","isType","matchesPattern","_matchesPattern","pattern","allowPartial","node","has","key","val","Array","isArray","length","isStatic","scope","is","isnt","equals","value","isNodeType","type","canHaveVariableDeclarationOrExpression","parentPath","isFor","canSwapBetweenExpressionAndStatement","replacement","isArrowFunctionExpression","isCompletionRecord","allowInsideFunction","path","first","container","isFunction","isProgram","isDoExpression","isStatementOrBlock","isLabeledStatement","includes","referencesImport","moduleSource","importName","isReferencedIdentifier","isJSXMemberExpression","property","name","isMemberExpression","isOptionalMemberExpression","computed","object","get","binding","getBinding","kind","parent","isImportDeclaration","source","isImportDefaultSpecifier","isImportNamespaceSpecifier","isImportSpecifier","imported","getSource","end","code","hub","getCode","slice","start","willIMaybeExecuteBefore","target","_guessExecutionStatusRelativeTo","getOuterFunction","getFunctionParent","getProgramParent","isExecutionUncertain","isExecutionUncertainInList","paths","maxIndex","i","parentKey","_guessExecutionStatusRelativeToCached","Map","base","cache","funcParent","this","_guessExecutionStatusRelativeToDifferentFunctionsCached","getAncestry","indexOf","commonPath","commonIndex","Error","divergence","listKey","keys","keyPosition","executionOrderCheckedNodes","Set","_guessExecutionStatusRelativeToDifferentFunctionsInternal","isFunctionDeclaration","isExportDeclaration","id","references","referencePaths","allStatus","childOfFunction","find","isCallExpression","add","status","delete","nodeMap","set","result","resolve","dangerous","resolved","_resolve","push","isVariableDeclarator","constant","ret","isTypeCastExpression","targetKey","toComputedKey","targetName","isObjectExpression","props","prop","isProperty","match","isArrayExpression","isNaN","elems","elem","isConstantExpression","isRegExpLiteral","isTemplateLiteral","every","expression","isUnaryExpression","operator","isBinaryExpression","isInStrictMode","strictParent","sourceType","isClass","body","directive","directives"],"sources":["../../src/path/introspection.ts"],"sourcesContent":["// This file contains methods responsible for introspecting the current path for certain values.\n\nimport type NodePath from \"./index\";\nimport {\n STATEMENT_OR_BLOCK_KEYS,\n VISITOR_KEYS,\n isBlockStatement,\n isExpression,\n isIdentifier,\n isLiteral,\n isStringLiteral,\n isType,\n matchesPattern as _matchesPattern,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\n\n/**\n * Match the current node if it matches the provided `pattern`.\n *\n * For example, given the match `React.createClass` it would match the\n * parsed nodes of `React.createClass` and `React[\"createClass\"]`.\n */\n\nexport function matchesPattern(\n this: NodePath,\n pattern: string,\n allowPartial?: boolean,\n): boolean {\n return _matchesPattern(this.node, pattern, allowPartial);\n}\n\n/**\n * Check whether we have the input `key`. If the `key` references an array then we check\n * if the array has any items, otherwise we just check if it's falsy.\n */\n\nexport function has<N extends t.Node>(\n this: NodePath<N>,\n key: keyof N,\n): boolean {\n const val = this.node && this.node[key];\n if (val && Array.isArray(val)) {\n return !!val.length;\n } else {\n return !!val;\n }\n}\n\n/**\n * Description\n */\n\nexport function isStatic(this: NodePath): boolean {\n return this.scope.isStatic(this.node);\n}\n\n/**\n * Alias of `has`.\n */\n\nexport const is = has;\n\n/**\n * Opposite of `has`.\n */\n\nexport function isnt<N extends t.Node>(\n this: NodePath<N>,\n key: keyof N,\n): boolean {\n return !this.has(key);\n}\n\n/**\n * Check whether the path node `key` strict equals `value`.\n */\n\nexport function equals<N extends t.Node>(\n this: NodePath<N>,\n key: keyof N,\n value: any,\n): boolean {\n return this.node[key] === value;\n}\n\n/**\n * Check the type against our stored internal type of the node. This is handy when a node has\n * been removed yet we still internally know the type and need it to calculate node replacement.\n */\n\nexport function isNodeType(this: NodePath, type: string): boolean {\n return isType(this.type, type);\n}\n\n/**\n * This checks whether or not we're in one of the following positions:\n *\n * for (KEY in right);\n * for (KEY;;);\n *\n * This is because these spots allow VariableDeclarations AND normal expressions so we need\n * to tell the path replacement that it's ok to replace this with an expression.\n */\n\nexport function canHaveVariableDeclarationOrExpression(this: NodePath) {\n return (\n (this.key === \"init\" || this.key === \"left\") && this.parentPath.isFor()\n );\n}\n\n/**\n * This checks whether we are swapping an arrow function's body between an\n *Line truncated
+192
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@@ -0,0 +1,192 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _t = require("@babel/types");
var _t2 = _t;
const {
react
} = _t;
const {
cloneNode,
jsxExpressionContainer,
variableDeclaration,
variableDeclarator
} = _t2;
const referenceVisitor = {
ReferencedIdentifier(path, state) {
if (path.isJSXIdentifier() && react.isCompatTag(path.node.name) && !path.parentPath.isJSXMemberExpression()) {
return;
}
if (path.node.name === "this") {
let scope = path.scope;
do {
if (scope.path.isFunction() && !scope.path.isArrowFunctionExpression()) {
break;
}
} while (scope = scope.parent);
if (scope) state.breakOnScopePaths.push(scope.path);
}
const binding = path.scope.getBinding(path.node.name);
if (!binding) return;
for (const violation of binding.constantViolations) {
if (violation.scope !== binding.path.scope) {
state.mutableBinding = true;
path.stop();
return;
}
}
if (binding !== state.scope.getBinding(path.node.name)) return;
state.bindings[path.node.name] = binding;
}
};
class PathHoister {
constructor(path, scope) {
this.breakOnScopePaths = void 0;
this.bindings = void 0;
this.mutableBinding = void 0;
this.scopes = void 0;
this.scope = void 0;
this.path = void 0;
this.attachAfter = void 0;
this.breakOnScopePaths = [];
this.bindings = {};
this.mutableBinding = false;
this.scopes = [];
this.scope = scope;
this.path = path;
this.attachAfter = false;
}
isCompatibleScope(scope) {
for (const key of Object.keys(this.bindings)) {
const binding = this.bindings[key];
if (!scope.bindingIdentifierEquals(key, binding.identifier)) {
return false;
}
}
return true;
}
getCompatibleScopes() {
let scope = this.path.scope;
do {
if (this.isCompatibleScope(scope)) {
this.scopes.push(scope);
} else {
break;
}
if (this.breakOnScopePaths.indexOf(scope.path) >= 0) {
break;
}
} while (scope = scope.parent);
}
getAttachmentPath() {
let path = this._getAttachmentPath();
if (!path) return;
let targetScope = path.scope;
if (targetScope.path === path) {
targetScope = path.scope.parent;
}
if (targetScope.path.isProgram() || targetScope.path.isFunction()) {
for (const name of Object.keys(this.bindings)) {
if (!targetScope.hasOwnBinding(name)) continue;
const binding = this.bindings[name];
if (binding.kind === "param" || binding.path.parentKey === "params") {
continue;
}
const bindingParentPath = this.getAttachmentParentForPath(binding.path);
if (bindingParentPath.key >= path.key) {
this.attachAfter = true;
path = binding.path;
for (const violationPath of binding.constantViolations) {
if (this.getAttachmentParentForPath(violationPath).key > path.key) {
path = violationPath;
}
}
}
}
}
return path;
}
_getAttachmentPath() {
const scopes = this.scopes;
const scope = scopes.pop();
if (!scope) return;
if (scope.path.isFunction()) {
if (this.hasOwnParamBindings(scope)) {
if (this.scope === scope) return;
const bodies = scope.path.get("body").get("body");
for (let i = 0; i < bodies.length; i++) {
if (bodies[i].node._blockHoist) continue;
return bodies[i];
}
} else {
return this.getNextScopeAttachmentParent();
}
} else if (scope.path.isProgram()) {
return this.getNextScopeAttachmentParent();
}
}
getNextScopeAttachmentParent() {
const scope = this.scopes.pop();
if (scope) return this.getAttachmentParentForPath(scope.path);
}
getAttachmentParentForPath(path) {
do {
if (
!path.parentPath ||
Array.isArray(path.container) && path.isStatement()) {
return path;
}
} while (path = path.parentPath);
}
hasOwnParamBindings(scope) {
for (const name of Object.keys(this.bindings)) {
if (!scope.hasOwnBinding(name)) continue;
const binding = this.bindings[name];
if (binding.kind === "param" && binding.constant) return true;
}
return false;
}
run() {
this.path.traverse(referenceVisitor, this);
if (this.mutableBinding) return;
this.getCompatibleScopes();
const attachTo = this.getAttachmentPath();
if (!attachTo) return;
if (attachTo.getFunctionParent() === this.path.getFunctionParent()) return;
let uid = attachTo.scope.generateUidIdentifier("ref");
const declarator = variableDeclarator(uid, this.path.node);
const insertFn = this.attachAfter ? "insertAfter" : "insertBefore";
const [attached] = attachTo[insertFn]([attachTo.isVariableDeclarator() ? declarator : variableDeclaration("var", [declarator])]);
const parent = this.path.parentPath;
if (parent.isJSXElement() && this.path.container === parent.node.children) {
uid = jsxExpressionContainer(uid);
}
this.path.replaceWith(cloneNode(uid));
return attachTo.isVariableDeclarator() ? attached.get("init") : attached.get("declarations.0.init");
}
}
exports.default = PathHoister;
//# sourceMappingURL=hoister.js.map
+1
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@@ -0,0 +1 @@
{"version":3,"names":["react","cloneNode","jsxExpressionContainer","variableDeclaration","variableDeclarator","referenceVisitor","ReferencedIdentifier","path","state","isJSXIdentifier","isCompatTag","node","name","parentPath","isJSXMemberExpression","scope","isFunction","isArrowFunctionExpression","parent","breakOnScopePaths","push","binding","getBinding","violation","constantViolations","mutableBinding","stop","bindings","PathHoister","constructor","scopes","attachAfter","isCompatibleScope","key","Object","keys","bindingIdentifierEquals","identifier","getCompatibleScopes","indexOf","getAttachmentPath","_getAttachmentPath","targetScope","isProgram","hasOwnBinding","kind","parentKey","bindingParentPath","getAttachmentParentForPath","violationPath","pop","hasOwnParamBindings","bodies","get","i","length","_blockHoist","getNextScopeAttachmentParent","Array","isArray","container","isStatement","constant","run","traverse","attachTo","getFunctionParent","uid","generateUidIdentifier","declarator","insertFn","attached","isVariableDeclarator","isJSXElement","children","replaceWith"],"sources":["../../../src/path/lib/hoister.ts"],"sourcesContent":["import { react } from \"@babel/types\";\nimport {\n cloneNode,\n jsxExpressionContainer,\n variableDeclaration,\n variableDeclarator,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport type Scope from \"../../scope\";\nimport type NodePath from \"../index\";\nimport type Binding from \"../../scope/binding\";\nimport type { Visitor } from \"../../types\";\n\nconst referenceVisitor: Visitor<PathHoister> = {\n // This visitor looks for bindings to establish a topmost scope for hoisting.\n ReferencedIdentifier(path, state) {\n // Don't hoist regular JSX identifiers ('div', 'span', etc).\n // We do have to consider member expressions for hoisting (e.g. `this.component`)\n if (\n path.isJSXIdentifier() &&\n react.isCompatTag(path.node.name) &&\n !path.parentPath.isJSXMemberExpression()\n ) {\n return;\n }\n\n // If the identifier refers to `this`, we need to break on the closest non-arrow scope.\n if (path.node.name === \"this\") {\n let scope = path.scope;\n do {\n if (\n scope.path.isFunction() &&\n !scope.path.isArrowFunctionExpression()\n ) {\n break;\n }\n } while ((scope = scope.parent));\n if (scope) state.breakOnScopePaths.push(scope.path);\n }\n\n // direct references that we need to track to hoist this to the highest scope we can\n const binding = path.scope.getBinding(path.node.name);\n if (!binding) return;\n\n // we can handle reassignments only if they happen in the same scope as the declaration\n for (const violation of binding.constantViolations) {\n if (violation.scope !== binding.path.scope) {\n state.mutableBinding = true;\n path.stop();\n return;\n }\n }\n\n // this binding isn't accessible from the parent scope so we can safely ignore it\n // eg. it's in a closure etc\n if (binding !== state.scope.getBinding(path.node.name)) return;\n\n state.bindings[path.node.name] = binding;\n },\n};\n\nexport default class PathHoister<T extends t.Node = t.Node> {\n breakOnScopePaths: NodePath[];\n bindings: { [k: string]: Binding };\n mutableBinding: boolean;\n private scopes: Scope[];\n scope: Scope;\n private path: NodePath<T>;\n private attachAfter: boolean;\n\n constructor(path: NodePath<T>, scope: Scope) {\n // Storage for scopes we can't hoist above.\n this.breakOnScopePaths = [];\n // Storage for bindings that may affect what path we can hoist to.\n this.bindings = {};\n // \"true\" if the current path contains a reference to a binding whose\n // value can change and thus can't be safely hoisted.\n this.mutableBinding = false;\n // Storage for eligible scopes.\n this.scopes = [];\n // Our original scope and path.\n this.scope = scope;\n this.path = path;\n // By default, we attach as far up as we can; but if we're trying\n // to avoid referencing a binding, we may have to go after.\n this.attachAfter = false;\n }\n\n // A scope is compatible if all required bindings are reachable.\n isCompatibleScope(scope: Scope) {\n for (const key of Object.keys(this.bindings)) {\n const binding = this.bindings[key];\n if (!scope.bindingIdentifierEquals(key, binding.identifier)) {\n return false;\n }\n }\n\n return true;\n }\n\n // Look through all scopes and push compatible ones.\n getCompatibleScopes() {\n let scope = this.path.scope;\n do {\n if (this.isCompatibleScope(scope)) {\n this.scopes.push(scope);\n } else {\n break;\n }\n\n // deopt: These scopes are set in the visitor on const violations\n if (this.breakOnScopePaths.indexOf(scope.path) >= 0) {\n break;\n }\n } while ((scope = scope.parent));\n }\n\n getAttachmentPaLine truncated
+44
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@@ -0,0 +1,44 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.hooks = void 0;
const hooks = [function (self, parent) {
const removeParent =
self.key === "test" && (parent.isWhile() || parent.isSwitchCase()) ||
self.key === "declaration" && parent.isExportDeclaration() ||
self.key === "body" && parent.isLabeledStatement() ||
self.listKey === "declarations" && parent.isVariableDeclaration() && parent.node.declarations.length === 1 ||
self.key === "expression" && parent.isExpressionStatement();
if (removeParent) {
parent.remove();
return true;
}
}, function (self, parent) {
if (parent.isSequenceExpression() && parent.node.expressions.length === 1) {
parent.replaceWith(parent.node.expressions[0]);
return true;
}
}, function (self, parent) {
if (parent.isBinary()) {
if (self.key === "left") {
parent.replaceWith(parent.node.right);
} else {
parent.replaceWith(parent.node.left);
}
return true;
}
}, function (self, parent) {
if (parent.isIfStatement() && self.key === "consequent" || self.key === "body" && (parent.isLoop() || parent.isArrowFunctionExpression())) {
self.replaceWith({
type: "BlockStatement",
body: []
});
return true;
}
}];
exports.hooks = hooks;
//# sourceMappingURL=removal-hooks.js.map
@@ -0,0 +1 @@
{"version":3,"names":["hooks","self","parent","removeParent","key","isWhile","isSwitchCase","isExportDeclaration","isLabeledStatement","listKey","isVariableDeclaration","node","declarations","length","isExpressionStatement","remove","isSequenceExpression","expressions","replaceWith","isBinary","right","left","isIfStatement","isLoop","isArrowFunctionExpression","type","body"],"sources":["../../../src/path/lib/removal-hooks.ts"],"sourcesContent":["// this file contains hooks that handle ancestry cleanup of parent nodes when removing children\n\nimport type NodePath from \"..\";\nimport type * as t from \"@babel/types\";\n/**\n * Pre hooks should be used for either rejecting removal or delegating removal\n */\n\nexport const hooks = [\n function (self: NodePath, parent: NodePath) {\n const removeParent =\n // while (NODE);\n // removing the test of a while/switch, we can either just remove it entirely *or* turn the\n // `test` into `true` unlikely that the latter will ever be what's wanted so we just remove\n // the loop to avoid infinite recursion\n (self.key === \"test\" && (parent.isWhile() || parent.isSwitchCase())) ||\n // export NODE;\n // just remove a declaration for an export as this is no longer valid\n (self.key === \"declaration\" && parent.isExportDeclaration()) ||\n // label: NODE\n // stray labeled statement with no body\n (self.key === \"body\" && parent.isLabeledStatement()) ||\n // let NODE;\n // remove an entire declaration if there are no declarators left\n (self.listKey === \"declarations\" &&\n parent.isVariableDeclaration() &&\n parent.node.declarations.length === 1) ||\n // NODE;\n // remove the entire expression statement if there's no expression\n (self.key === \"expression\" && parent.isExpressionStatement());\n\n if (removeParent) {\n parent.remove();\n return true;\n }\n },\n\n function (self: NodePath, parent: NodePath) {\n if (parent.isSequenceExpression() && parent.node.expressions.length === 1) {\n // (node, NODE);\n // we've just removed the second element of a sequence expression so let's turn that sequence\n // expression into a regular expression\n parent.replaceWith(parent.node.expressions[0]);\n return true;\n }\n },\n\n function (self: NodePath, parent: NodePath) {\n if (parent.isBinary()) {\n // left + NODE;\n // NODE + right;\n // we're in a binary expression, better remove it and replace it with the last expression\n if (self.key === \"left\") {\n parent.replaceWith(parent.node.right);\n } else {\n // key === \"right\"\n parent.replaceWith(parent.node.left);\n }\n return true;\n }\n },\n\n function (self: NodePath, parent: NodePath) {\n if (\n (parent.isIfStatement() && self.key === \"consequent\") ||\n (self.key === \"body\" &&\n (parent.isLoop() || parent.isArrowFunctionExpression()))\n ) {\n self.replaceWith({\n type: \"BlockStatement\",\n body: [],\n } as t.BlockStatement);\n return true;\n }\n },\n];\n"],"mappings":";;;;;;;AAQO,MAAMA,KAAK,GAAG,CACnB,UAAUC,IAAc,EAAEC,MAAgB,EAAE;EAC1C,MAAMC,YAAY;EAKfF,IAAI,CAACG,GAAG,KAAK,MAAM,KAAKF,MAAM,CAACG,OAAO,EAAE,IAAIH,MAAM,CAACI,YAAY,EAAE,CAAC;EAGlEL,IAAI,CAACG,GAAG,KAAK,aAAa,IAAIF,MAAM,CAACK,mBAAmB,EAAG;EAG3DN,IAAI,CAACG,GAAG,KAAK,MAAM,IAAIF,MAAM,CAACM,kBAAkB,EAAG;EAGnDP,IAAI,CAACQ,OAAO,KAAK,cAAc,IAC9BP,MAAM,CAACQ,qBAAqB,EAAE,IAC9BR,MAAM,CAACS,IAAI,CAACC,YAAY,CAACC,MAAM,KAAK,CAAE;EAGvCZ,IAAI,CAACG,GAAG,KAAK,YAAY,IAAIF,MAAM,CAACY,qBAAqB,EAAG;EAE/D,IAAIX,YAAY,EAAE;IAChBD,MAAM,CAACa,MAAM,EAAE;IACf,OAAO,IAAI;EACb;AACF,CAAC,EAED,UAAUd,IAAc,EAAEC,MAAgB,EAAE;EAC1C,IAAIA,MAAM,CAACc,oBAAoB,EAAE,IAAId,MAAM,CAACS,IAAI,CAACM,WAAW,CAACJ,MAAM,KAAK,CAAC,EAAE;IAIzEX,MAAM,CAACgB,WAAW,CAAChB,MAAM,CAACS,IAAI,CAACM,WAAW,CAAC,CAAC,CAAC,CAAC;IAC9C,OAAO,IAAI;EACb;AACF,CAAC,EAED,UAAUhB,IAAc,EAAEC,MAAgB,EAAE;EAC1C,IAAIA,MAAM,CAACiB,QAAQ,EAAE,EAAE;IAIrB,IAAIlB,IAAI,CAACG,GAAG,KAAK,MAAM,EAAE;MACvBF,MAAM,CAACgB,WAAW,CAAChB,MAAM,CAACS,IAAI,CAACS,KAAK,CAAC;IACvC,CAAC,MAAM;MAELlB,MAAM,CAACgB,WAAW,CAAChB,MAAM,CAACS,IAAI,CAACU,IAAI,CAAC;IACtC;IACA,OAAO,IAAI;EACb;AACF,CAAC,EAED,UAAUpB,IAAc,EAAEC,MAAgB,EAAE;EAC1C,IACGA,MAAM,CAACoB,aAAa,EAAE,IAAIrB,IAAI,CAACG,GAAG,KAAK,YAAY,IACnDH,IAAI,CAACG,GAAG,KAAK,MAAM,KACjBF,MAAM,CAACqB,MAAM,EAAE,IAAIrB,MAAM,CAACsB,yBAAyB,EAAE,CAAE,EAC1D;IACAvB,IAAI,CAACiB,WAAW,CAAC;MACfO,IAAI,EAAE,gBAAgB;MACtBC,IAAI,EAAE;IACR,CAAC,CAAqB;IACtB,OAAO,IAAI;EACb;AACF,CAAC,CACF;AAAC"}
@@ -0,0 +1,163 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.isBindingIdentifier = isBindingIdentifier;
exports.isBlockScoped = isBlockScoped;
exports.isExistentialTypeParam = isExistentialTypeParam;
exports.isExpression = isExpression;
exports.isFlow = isFlow;
exports.isForAwaitStatement = isForAwaitStatement;
exports.isGenerated = isGenerated;
exports.isNumericLiteralTypeAnnotation = isNumericLiteralTypeAnnotation;
exports.isPure = isPure;
exports.isReferenced = isReferenced;
exports.isReferencedIdentifier = isReferencedIdentifier;
exports.isReferencedMemberExpression = isReferencedMemberExpression;
exports.isRestProperty = isRestProperty;
exports.isScope = isScope;
exports.isSpreadProperty = isSpreadProperty;
exports.isStatement = isStatement;
exports.isUser = isUser;
exports.isVar = isVar;
var _t = require("@babel/types");
const {
isBinding,
isBlockScoped: nodeIsBlockScoped,
isExportDeclaration,
isExpression: nodeIsExpression,
isFlow: nodeIsFlow,
isForStatement,
isForXStatement,
isIdentifier,
isImportDeclaration,
isImportSpecifier,
isJSXIdentifier,
isJSXMemberExpression,
isMemberExpression,
isRestElement: nodeIsRestElement,
isReferenced: nodeIsReferenced,
isScope: nodeIsScope,
isStatement: nodeIsStatement,
isVar: nodeIsVar,
isVariableDeclaration,
react,
isForOfStatement
} = _t;
const {
isCompatTag
} = react;
function isReferencedIdentifier(opts) {
const {
node,
parent
} = this;
if (!isIdentifier(node, opts) && !isJSXMemberExpression(parent, opts)) {
if (isJSXIdentifier(node, opts)) {
if (isCompatTag(node.name)) return false;
} else {
return false;
}
}
return nodeIsReferenced(node, parent, this.parentPath.parent);
}
function isReferencedMemberExpression() {
const {
node,
parent
} = this;
return isMemberExpression(node) && nodeIsReferenced(node, parent);
}
function isBindingIdentifier() {
const {
node,
parent
} = this;
const grandparent = this.parentPath.parent;
return isIdentifier(node) && isBinding(node, parent, grandparent);
}
function isStatement() {
const {
node,
parent
} = this;
if (nodeIsStatement(node)) {
if (isVariableDeclaration(node)) {
if (isForXStatement(parent, {
left: node
})) return false;
if (isForStatement(parent, {
init: node
})) return false;
}
return true;
} else {
return false;
}
}
function isExpression() {
if (this.isIdentifier()) {
return this.isReferencedIdentifier();
} else {
return nodeIsExpression(this.node);
}
}
function isScope() {
return nodeIsScope(this.node, this.parent);
}
function isReferenced() {
return nodeIsReferenced(this.node, this.parent);
}
function isBlockScoped() {
return nodeIsBlockScoped(this.node);
}
function isVar() {
return nodeIsVar(this.node);
}
function isUser() {
return this.node && !!this.node.loc;
}
function isGenerated() {
return !this.isUser();
}
function isPure(constantsOnly) {
return this.scope.isPure(this.node, constantsOnly);
}
function isFlow() {
const {
node
} = this;
if (nodeIsFlow(node)) {
return true;
} else if (isImportDeclaration(node)) {
return node.importKind === "type" || node.importKind === "typeof";
} else if (isExportDeclaration(node)) {
return node.exportKind === "type";
} else if (isImportSpecifier(node)) {
return node.importKind === "type" || node.importKind === "typeof";
} else {
return false;
}
}
function isRestProperty() {
return nodeIsRestElement(this.node) && this.parentPath && this.parentPath.isObjectPattern();
}
function isSpreadProperty() {
return nodeIsRestElement(this.node) && this.parentPath && this.parentPath.isObjectExpression();
}
function isForAwaitStatement() {
return isForOfStatement(this.node, {
await: true
});
}
function isExistentialTypeParam() {
throw new Error("`path.isExistentialTypeParam` has been renamed to `path.isExistsTypeAnnotation()` in Babel 7.");
}
function isNumericLiteralTypeAnnotation() {
throw new Error("`path.isNumericLiteralTypeAnnotation()` has been renamed to `path.isNumberLiteralTypeAnnotation()` in Babel 7.");
}
//# sourceMappingURL=virtual-types-validator.js.map
@@ -0,0 +1 @@
{"version":3,"names":["isBinding","isBlockScoped","nodeIsBlockScoped","isExportDeclaration","isExpression","nodeIsExpression","isFlow","nodeIsFlow","isForStatement","isForXStatement","isIdentifier","isImportDeclaration","isImportSpecifier","isJSXIdentifier","isJSXMemberExpression","isMemberExpression","isRestElement","nodeIsRestElement","isReferenced","nodeIsReferenced","isScope","nodeIsScope","isStatement","nodeIsStatement","isVar","nodeIsVar","isVariableDeclaration","react","isForOfStatement","isCompatTag","isReferencedIdentifier","opts","node","parent","name","parentPath","isReferencedMemberExpression","isBindingIdentifier","grandparent","left","init","isUser","loc","isGenerated","isPure","constantsOnly","scope","importKind","exportKind","isRestProperty","isObjectPattern","isSpreadProperty","isObjectExpression","isForAwaitStatement","await","isExistentialTypeParam","Error","isNumericLiteralTypeAnnotation"],"sources":["../../../src/path/lib/virtual-types-validator.ts"],"sourcesContent":["import type NodePath from \"../index\";\nimport {\n isBinding,\n isBlockScoped as nodeIsBlockScoped,\n isExportDeclaration,\n isExpression as nodeIsExpression,\n isFlow as nodeIsFlow,\n isForStatement,\n isForXStatement,\n isIdentifier,\n isImportDeclaration,\n isImportSpecifier,\n isJSXIdentifier,\n isJSXMemberExpression,\n isMemberExpression,\n isRestElement as nodeIsRestElement,\n isReferenced as nodeIsReferenced,\n isScope as nodeIsScope,\n isStatement as nodeIsStatement,\n isVar as nodeIsVar,\n isVariableDeclaration,\n react,\n isForOfStatement,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nconst { isCompatTag } = react;\nimport type { VirtualTypeAliases } from \"./virtual-types\";\n\nexport interface VirtualTypeNodePathValidators {\n isBindingIdentifier<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & VirtualTypeAliases[\"BindingIdentifier\"]>;\n isBlockScoped(opts?: object): boolean;\n /**\n * @deprecated\n */\n isExistentialTypeParam<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & VirtualTypeAliases[\"ExistentialTypeParam\"]>;\n isExpression<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & t.Expression>;\n isFlow<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & t.Flow>;\n isForAwaitStatement<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & VirtualTypeAliases[\"ForAwaitStatement\"]>;\n isGenerated(opts?: object): boolean;\n /**\n * @deprecated\n */\n isNumericLiteralTypeAnnotation(opts?: object): void;\n isPure(opts?: object): boolean;\n isReferenced(opts?: object): boolean;\n isReferencedIdentifier<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & VirtualTypeAliases[\"ReferencedIdentifier\"]>;\n isReferencedMemberExpression<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & VirtualTypeAliases[\"ReferencedMemberExpression\"]>;\n isRestProperty<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & t.RestProperty>;\n isScope<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & VirtualTypeAliases[\"Scope\"]>;\n isSpreadProperty<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & t.SpreadProperty>;\n isStatement<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & t.Statement>;\n isUser(opts?: object): boolean;\n isVar<T extends t.Node>(\n this: NodePath<T>,\n opts?: object,\n ): this is NodePath<T & VirtualTypeAliases[\"Var\"]>;\n}\n\nexport function isReferencedIdentifier(this: NodePath, opts?: any): boolean {\n const { node, parent } = this;\n if (!isIdentifier(node, opts) && !isJSXMemberExpression(parent, opts)) {\n if (isJSXIdentifier(node, opts)) {\n if (isCompatTag(node.name)) return false;\n } else {\n // not a JSXIdentifier or an Identifier\n return false;\n }\n }\n\n // check if node is referenced\n return nodeIsReferenced(node, parent, this.parentPath.parent);\n}\n\nexport function isReferencedMemberExpression(this: NodePath): boolean {\n const { node, parent } = this;\n return isMemberExpression(node) && nodeIsReferenced(node, parent);\n}\n\nexport function isBindingIdentifier(this: NodePath): boolean {\n const { node, parent } = this;\n const grandparent = this.parentPath.parent;\n return isIdentifier(node) && isBinding(node, parent, grandparent);\n}\n\nexport function isStatement(this: NodePath): boolean {\n const { node, parent } = this;\n if (nodeIsStatement(node)) {\n if (isVariableDeclaration(node)) {\n if (isForXStatement(parent, { left: node })) return false;\n if (isForStatement(parent, { init: node })) return false;\n }\n\n return true;\n Line truncated
+45
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@@ -0,0 +1,45 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.Var = exports.User = exports.Statement = exports.SpreadProperty = exports.Scope = exports.RestProperty = exports.ReferencedMemberExpression = exports.ReferencedIdentifier = exports.Referenced = exports.Pure = exports.NumericLiteralTypeAnnotation = exports.Generated = exports.ForAwaitStatement = exports.Flow = exports.Expression = exports.ExistentialTypeParam = exports.BlockScoped = exports.BindingIdentifier = void 0;
const ReferencedIdentifier = ["Identifier", "JSXIdentifier"];
exports.ReferencedIdentifier = ReferencedIdentifier;
const ReferencedMemberExpression = ["MemberExpression"];
exports.ReferencedMemberExpression = ReferencedMemberExpression;
const BindingIdentifier = ["Identifier"];
exports.BindingIdentifier = BindingIdentifier;
const Statement = ["Statement"];
exports.Statement = Statement;
const Expression = ["Expression"];
exports.Expression = Expression;
const Scope = ["Scopable", "Pattern"];
exports.Scope = Scope;
const Referenced = null;
exports.Referenced = Referenced;
const BlockScoped = null;
exports.BlockScoped = BlockScoped;
const Var = ["VariableDeclaration"];
exports.Var = Var;
const User = null;
exports.User = User;
const Generated = null;
exports.Generated = Generated;
const Pure = null;
exports.Pure = Pure;
const Flow = ["Flow", "ImportDeclaration", "ExportDeclaration", "ImportSpecifier"];
exports.Flow = Flow;
const RestProperty = ["RestElement"];
exports.RestProperty = RestProperty;
const SpreadProperty = ["RestElement"];
exports.SpreadProperty = SpreadProperty;
const ExistentialTypeParam = ["ExistsTypeAnnotation"];
exports.ExistentialTypeParam = ExistentialTypeParam;
const NumericLiteralTypeAnnotation = ["NumberLiteralTypeAnnotation"];
exports.NumericLiteralTypeAnnotation = NumericLiteralTypeAnnotation;
const ForAwaitStatement = ["ForOfStatement"];
exports.ForAwaitStatement = ForAwaitStatement;
//# sourceMappingURL=virtual-types.js.map
@@ -0,0 +1 @@
{"version":3,"names":["ReferencedIdentifier","ReferencedMemberExpression","BindingIdentifier","Statement","Expression","Scope","Referenced","BlockScoped","Var","User","Generated","Pure","Flow","RestProperty","SpreadProperty","ExistentialTypeParam","NumericLiteralTypeAnnotation","ForAwaitStatement"],"sources":["../../../src/path/lib/virtual-types.ts"],"sourcesContent":["import type * as t from \"@babel/types\";\n\nexport interface VirtualTypeAliases {\n BindingIdentifier: t.Identifier;\n BlockScoped: t.Node;\n ExistentialTypeParam: t.ExistsTypeAnnotation;\n Expression: t.Expression;\n Flow: t.Flow | t.ImportDeclaration | t.ExportDeclaration | t.ImportSpecifier;\n ForAwaitStatement: t.ForOfStatement;\n Generated: t.Node;\n NumericLiteralTypeAnnotation: t.NumberLiteralTypeAnnotation;\n Pure: t.Node;\n Referenced: t.Node;\n ReferencedIdentifier: t.Identifier | t.JSXIdentifier;\n ReferencedMemberExpression: t.MemberExpression;\n RestProperty: t.RestElement;\n Scope: t.Scopable | t.Pattern;\n SpreadProperty: t.RestElement;\n Statement: t.Statement;\n User: t.Node;\n Var: t.VariableDeclaration;\n}\n\ntype VirtualTypeMapping = readonly (t.Node[\"type\"] | keyof t.Aliases)[] | null;\n\nexport const ReferencedIdentifier: VirtualTypeMapping = [\n \"Identifier\",\n \"JSXIdentifier\",\n] as const;\n\nexport const ReferencedMemberExpression: VirtualTypeMapping = [\n \"MemberExpression\",\n] as const;\n\nexport const BindingIdentifier: VirtualTypeMapping = [\"Identifier\"] as const;\n\nexport const Statement: VirtualTypeMapping = [\"Statement\"] as const;\n\nexport const Expression: VirtualTypeMapping = [\"Expression\"] as const;\n\nexport const Scope: VirtualTypeMapping = [\"Scopable\", \"Pattern\"] as const;\n\nexport const Referenced: VirtualTypeMapping = null as null;\n\nexport const BlockScoped: VirtualTypeMapping = null as null;\n\nexport const Var: VirtualTypeMapping = [\"VariableDeclaration\"];\n\nexport const User: VirtualTypeMapping = null as null;\n\nexport const Generated: VirtualTypeMapping = null as null;\n\nexport const Pure: VirtualTypeMapping = null as null;\n\nexport const Flow: VirtualTypeMapping = [\n \"Flow\",\n \"ImportDeclaration\",\n \"ExportDeclaration\",\n \"ImportSpecifier\",\n] as const;\n\n// TODO: 7.0 Backwards Compat\nexport const RestProperty: VirtualTypeMapping = [\"RestElement\"] as const;\n\nexport const SpreadProperty: VirtualTypeMapping = [\"RestElement\"] as const;\n\nexport const ExistentialTypeParam: VirtualTypeMapping = [\n \"ExistsTypeAnnotation\",\n] as const;\n\nexport const NumericLiteralTypeAnnotation: VirtualTypeMapping = [\n \"NumberLiteralTypeAnnotation\",\n] as const;\n\nexport const ForAwaitStatement: VirtualTypeMapping = [\n \"ForOfStatement\",\n] as const;\n"],"mappings":";;;;;;AAyBO,MAAMA,oBAAwC,GAAG,CACtD,YAAY,EACZ,eAAe,CACP;AAAC;AAEJ,MAAMC,0BAA8C,GAAG,CAC5D,kBAAkB,CACV;AAAC;AAEJ,MAAMC,iBAAqC,GAAG,CAAC,YAAY,CAAU;AAAC;AAEtE,MAAMC,SAA6B,GAAG,CAAC,WAAW,CAAU;AAAC;AAE7D,MAAMC,UAA8B,GAAG,CAAC,YAAY,CAAU;AAAC;AAE/D,MAAMC,KAAyB,GAAG,CAAC,UAAU,EAAE,SAAS,CAAU;AAAC;AAEnE,MAAMC,UAA8B,GAAG,IAAY;AAAC;AAEpD,MAAMC,WAA+B,GAAG,IAAY;AAAC;AAErD,MAAMC,GAAuB,GAAG,CAAC,qBAAqB,CAAC;AAAC;AAExD,MAAMC,IAAwB,GAAG,IAAY;AAAC;AAE9C,MAAMC,SAA6B,GAAG,IAAY;AAAC;AAEnD,MAAMC,IAAwB,GAAG,IAAY;AAAC;AAE9C,MAAMC,IAAwB,GAAG,CACtC,MAAM,EACN,mBAAmB,EACnB,mBAAmB,EACnB,iBAAiB,CACT;;AAAC;AAGJ,MAAMC,YAAgC,GAAG,CAAC,aAAa,CAAU;AAAC;AAElE,MAAMC,cAAkC,GAAG,CAAC,aAAa,CAAU;AAAC;AAEpE,MAAMC,oBAAwC,GAAG,CACtD,sBAAsB,CACd;AAAC;AAEJ,MAAMC,4BAAgD,GAAG,CAC9D,6BAA6B,CACrB;AAAC;AAEJ,MAAMC,iBAAqC,GAAG,CACnD,gBAAgB,CACR;AAAC"}
+236
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports._containerInsert = _containerInsert;
exports._containerInsertAfter = _containerInsertAfter;
exports._containerInsertBefore = _containerInsertBefore;
exports._verifyNodeList = _verifyNodeList;
exports.hoist = hoist;
exports.insertAfter = insertAfter;
exports.insertBefore = insertBefore;
exports.pushContainer = pushContainer;
exports.unshiftContainer = unshiftContainer;
exports.updateSiblingKeys = updateSiblingKeys;
var _cache = require("../cache");
var _hoister = require("./lib/hoister");
var _index = require("./index");
var _t = require("@babel/types");
const {
arrowFunctionExpression,
assertExpression,
assignmentExpression,
blockStatement,
callExpression,
cloneNode,
expressionStatement,
isAssignmentExpression,
isCallExpression,
isExpression,
isIdentifier,
isSequenceExpression,
isSuper,
thisExpression
} = _t;
function insertBefore(nodes_) {
this._assertUnremoved();
const nodes = this._verifyNodeList(nodes_);
const {
parentPath
} = this;
if (parentPath.isExpressionStatement() || parentPath.isLabeledStatement() || parentPath.isExportNamedDeclaration() || parentPath.isExportDefaultDeclaration() && this.isDeclaration()) {
return parentPath.insertBefore(nodes);
} else if (this.isNodeType("Expression") && !this.isJSXElement() || parentPath.isForStatement() && this.key === "init") {
if (this.node) nodes.push(this.node);
return this.replaceExpressionWithStatements(nodes);
} else if (Array.isArray(this.container)) {
return this._containerInsertBefore(nodes);
} else if (this.isStatementOrBlock()) {
const node = this.node;
const shouldInsertCurrentNode = node && (!this.isExpressionStatement() || node.expression != null);
this.replaceWith(blockStatement(shouldInsertCurrentNode ? [node] : []));
return this.unshiftContainer("body",
nodes);
} else {
throw new Error("We don't know what to do with this node type. " + "We were previously a Statement but we can't fit in here?");
}
}
function _containerInsert(from, nodes) {
this.updateSiblingKeys(from, nodes.length);
const paths = [];
this.container.splice(from, 0, ...nodes);
for (let i = 0; i < nodes.length; i++) {
const to = from + i;
const path = this.getSibling(to);
paths.push(path);
if (this.context && this.context.queue) {
path.pushContext(this.context);
}
}
const contexts = this._getQueueContexts();
for (const path of paths) {
path.setScope();
path.debug("Inserted.");
for (const context of contexts) {
context.maybeQueue(path, true);
}
}
return paths;
}
function _containerInsertBefore(nodes) {
return this._containerInsert(this.key, nodes);
}
function _containerInsertAfter(nodes) {
return this._containerInsert(this.key + 1, nodes);
}
const last = arr => arr[arr.length - 1];
function isHiddenInSequenceExpression(path) {
return isSequenceExpression(path.parent) && (last(path.parent.expressions) !== path.node || isHiddenInSequenceExpression(path.parentPath));
}
function isAlmostConstantAssignment(node, scope) {
if (!isAssignmentExpression(node) || !isIdentifier(node.left)) {
return false;
}
const blockScope = scope.getBlockParent();
return blockScope.hasOwnBinding(node.left.name) && blockScope.getOwnBinding(node.left.name).constantViolations.length <= 1;
}
function insertAfter(nodes_) {
this._assertUnremoved();
if (this.isSequenceExpression()) {
return last(this.get("expressions")).insertAfter(nodes_);
}
const nodes = this._verifyNodeList(nodes_);
const {
parentPath
} = this;
if (parentPath.isExpressionStatement() || parentPath.isLabeledStatement() || parentPath.isExportNamedDeclaration() || parentPath.isExportDefaultDeclaration() && this.isDeclaration()) {
return parentPath.insertAfter(nodes.map(node => {
return isExpression(node) ? expressionStatement(node) : node;
}));
} else if (this.isNodeType("Expression") && !this.isJSXElement() && !parentPath.isJSXElement() || parentPath.isForStatement() && this.key === "init") {
if (this.node) {
const node = this.node;
let {
scope
} = this;
if (scope.path.isPattern()) {
assertExpression(node);
this.replaceWith(callExpression(arrowFunctionExpression([], node), []));
this.get("callee.body").insertAfter(nodes);
return [this];
}
if (isHiddenInSequenceExpression(this)) {
nodes.unshift(node);
}
else if (isCallExpression(node) && isSuper(node.callee)) {
nodes.unshift(node);
nodes.push(thisExpression());
} else if (isAlmostConstantAssignment(node, scope)) {
nodes.unshift(node);
nodes.push(cloneNode(node.left));
} else if (scope.isPure(node, true)) {
nodes.push(node);
} else {
if (parentPath.isMethod({
computed: true,
key: node
})) {
scope = scope.parent;
}
const temp = scope.generateDeclaredUidIdentifier();
nodes.unshift(expressionStatement(
assignmentExpression("=", cloneNode(temp), node)));
nodes.push(expressionStatement(cloneNode(temp)));
}
}
return this.replaceExpressionWithStatements(nodes);
} else if (Array.isArray(this.container)) {
return this._containerInsertAfter(nodes);
} else if (this.isStatementOrBlock()) {
const node = this.node;
const shouldInsertCurrentNode = node && (!this.isExpressionStatement() || node.expression != null);
this.replaceWith(blockStatement(shouldInsertCurrentNode ? [node] : []));
return this.pushContainer("body", nodes);
} else {
throw new Error("We don't know what to do with this node type. " + "We were previously a Statement but we can't fit in here?");
}
}
function updateSiblingKeys(fromIndex, incrementBy) {
if (!this.parent) return;
const paths = _cache.path.get(this.parent);
for (const [, path] of paths) {
if (path.key >= fromIndex) {
path.key += incrementBy;
}
}
}
function _verifyNodeList(nodes) {
if (!nodes) {
return [];
}
if (!Array.isArray(nodes)) {
nodes = [nodes];
}
for (let i = 0; i < nodes.length; i++) {
const node = nodes[i];
let msg;
if (!node) {
msg = "has falsy node";
} else if (typeof node !== "object") {
msg = "contains a non-object node";
} else if (!node.type) {
msg = "without a type";
} else if (node instanceof _index.default) {
msg = "has a NodePath when it expected a raw object";
}
if (msg) {
const type = Array.isArray(node) ? "array" : typeof node;
throw new Error(`Node list ${msg} with the index of ${i} and type of ${type}`);
}
}
return nodes;
}
function unshiftContainer(listKey, nodes) {
this._assertUnremoved();
nodes = this._verifyNodeList(nodes);
const path = _index.default.get({
parentPath: this,
parent: this.node,
container: this.node[listKey],
listKey,
key: 0
}).setContext(this.context);
return path._containerInsertBefore(
nodes);
}
function pushContainer(listKey, nodes) {
this._assertUnremoved();
const verifiedNodes = this._verifyNodeList(
nodes);
const container = this.node[listKey];
const path = _index.default.get({
parentPath: this,
parent: this.node,
container: container,
listKey,
key: container.length
}).setContext(this.context);
return path.replaceWithMultiple(verifiedNodes);
}
function hoist(scope = this.scope) {
const hoister = new _hoister.default(this, scope);
return hoister.run();
}
//# sourceMappingURL=modification.js.map
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@@ -0,0 +1 @@
{"version":3,"names":["arrowFunctionExpression","assertExpression","assignmentExpression","blockStatement","callExpression","cloneNode","expressionStatement","isAssignmentExpression","isCallExpression","isExpression","isIdentifier","isSequenceExpression","isSuper","thisExpression","insertBefore","nodes_","_assertUnremoved","nodes","_verifyNodeList","parentPath","isExpressionStatement","isLabeledStatement","isExportNamedDeclaration","isExportDefaultDeclaration","isDeclaration","isNodeType","isJSXElement","isForStatement","key","node","push","replaceExpressionWithStatements","Array","isArray","container","_containerInsertBefore","isStatementOrBlock","shouldInsertCurrentNode","expression","replaceWith","unshiftContainer","Error","_containerInsert","from","updateSiblingKeys","length","paths","splice","i","to","path","getSibling","context","queue","pushContext","contexts","_getQueueContexts","setScope","debug","maybeQueue","_containerInsertAfter","last","arr","isHiddenInSequenceExpression","parent","expressions","isAlmostConstantAssignment","scope","left","blockScope","getBlockParent","hasOwnBinding","name","getOwnBinding","constantViolations","insertAfter","get","map","isPattern","unshift","callee","isPure","isMethod","computed","temp","generateDeclaredUidIdentifier","pushContainer","fromIndex","incrementBy","pathCache","msg","type","NodePath","listKey","setContext","verifiedNodes","replaceWithMultiple","hoist","hoister","PathHoister","run"],"sources":["../../src/path/modification.ts"],"sourcesContent":["// This file contains methods that modify the path/node in some ways.\n\nimport { path as pathCache } from \"../cache\";\nimport PathHoister from \"./lib/hoister\";\nimport NodePath from \"./index\";\nimport {\n arrowFunctionExpression,\n assertExpression,\n assignmentExpression,\n blockStatement,\n callExpression,\n cloneNode,\n expressionStatement,\n isAssignmentExpression,\n isCallExpression,\n isExpression,\n isIdentifier,\n isSequenceExpression,\n isSuper,\n thisExpression,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport type Scope from \"../scope\";\n\n/**\n * Insert the provided nodes before the current one.\n */\n\nexport function insertBefore(\n this: NodePath,\n nodes_: t.Node | t.Node[],\n): NodePath[] {\n this._assertUnremoved();\n\n const nodes = this._verifyNodeList(nodes_);\n\n const { parentPath } = this;\n\n if (\n parentPath.isExpressionStatement() ||\n parentPath.isLabeledStatement() ||\n parentPath.isExportNamedDeclaration() ||\n (parentPath.isExportDefaultDeclaration() && this.isDeclaration())\n ) {\n return parentPath.insertBefore(nodes);\n } else if (\n (this.isNodeType(\"Expression\") && !this.isJSXElement()) ||\n (parentPath.isForStatement() && this.key === \"init\")\n ) {\n if (this.node) nodes.push(this.node);\n // @ts-expect-error todo(flow->ts): check that nodes is an array of statements\n return this.replaceExpressionWithStatements(nodes);\n } else if (Array.isArray(this.container)) {\n return this._containerInsertBefore(nodes);\n } else if (this.isStatementOrBlock()) {\n const node = this.node as t.Statement;\n const shouldInsertCurrentNode =\n node &&\n (!this.isExpressionStatement() ||\n (node as t.ExpressionStatement).expression != null);\n\n this.replaceWith(blockStatement(shouldInsertCurrentNode ? [node] : []));\n return (this as NodePath<t.BlockStatement>).unshiftContainer(\n \"body\",\n // @ts-expect-error Fixme: refine nodes to t.BlockStatement[\"body\"] when this is a BlockStatement path\n nodes,\n );\n } else {\n throw new Error(\n \"We don't know what to do with this node type. \" +\n \"We were previously a Statement but we can't fit in here?\",\n );\n }\n}\n\nexport function _containerInsert<N extends t.Node>(\n this: NodePath,\n from: number,\n nodes: N[],\n): NodePath<N>[] {\n this.updateSiblingKeys(from, nodes.length);\n\n const paths: NodePath<N>[] = [];\n\n // @ts-expect-error todo(flow->ts): this.container could be a NodePath\n this.container.splice(from, 0, ...nodes);\n for (let i = 0; i < nodes.length; i++) {\n const to = from + i;\n const path = this.getSibling(to) as NodePath<N>;\n paths.push(path);\n\n if (this.context && this.context.queue) {\n path.pushContext(this.context);\n }\n }\n\n const contexts = this._getQueueContexts();\n\n for (const path of paths) {\n path.setScope();\n path.debug(\"Inserted.\");\n\n for (const context of contexts) {\n context.maybeQueue(path, true);\n }\n }\n\n return paths;\n}\n\nexport function _containerInsertBefore<N extends t.Node>(\n this: NodePath,\n nodes: N[],\n) {\n return this._containerInsert(this.key as number, nodes);\n}\n\nexport function _containerInsertAfter<N extends t.Node>(\n this: NodePath,\n nodes: N[],\n) {\n return this._containerInsert((this.key as number) + 1, nodes);\n}\n\nconst last = <T>(arr:Line truncated
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@@ -0,0 +1,59 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports._assertUnremoved = _assertUnremoved;
exports._callRemovalHooks = _callRemovalHooks;
exports._markRemoved = _markRemoved;
exports._remove = _remove;
exports._removeFromScope = _removeFromScope;
exports.remove = remove;
var _removalHooks = require("./lib/removal-hooks");
var _cache = require("../cache");
var _index = require("./index");
function remove() {
var _this$opts;
this._assertUnremoved();
this.resync();
if (!((_this$opts = this.opts) != null && _this$opts.noScope)) {
this._removeFromScope();
}
if (this._callRemovalHooks()) {
this._markRemoved();
return;
}
this.shareCommentsWithSiblings();
this._remove();
this._markRemoved();
}
function _removeFromScope() {
const bindings = this.getBindingIdentifiers();
Object.keys(bindings).forEach(name => this.scope.removeBinding(name));
}
function _callRemovalHooks() {
for (const fn of _removalHooks.hooks) {
if (fn(this, this.parentPath)) return true;
}
}
function _remove() {
if (Array.isArray(this.container)) {
this.container.splice(this.key, 1);
this.updateSiblingKeys(this.key, -1);
} else {
this._replaceWith(null);
}
}
function _markRemoved() {
this._traverseFlags |= _index.SHOULD_SKIP | _index.REMOVED;
if (this.parent) _cache.path.get(this.parent).delete(this.node);
this.node = null;
}
function _assertUnremoved() {
if (this.removed) {
throw this.buildCodeFrameError("NodePath has been removed so is read-only.");
}
}
//# sourceMappingURL=removal.js.map
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@@ -0,0 +1 @@
{"version":3,"names":["remove","_assertUnremoved","resync","opts","noScope","_removeFromScope","_callRemovalHooks","_markRemoved","shareCommentsWithSiblings","_remove","bindings","getBindingIdentifiers","Object","keys","forEach","name","scope","removeBinding","fn","hooks","parentPath","Array","isArray","container","splice","key","updateSiblingKeys","_replaceWith","_traverseFlags","SHOULD_SKIP","REMOVED","parent","pathCache","get","delete","node","removed","buildCodeFrameError"],"sources":["../../src/path/removal.ts"],"sourcesContent":["// This file contains methods responsible for removing a node.\n\nimport { hooks } from \"./lib/removal-hooks\";\nimport { path as pathCache } from \"../cache\";\nimport type NodePath from \"./index\";\nimport { REMOVED, SHOULD_SKIP } from \"./index\";\n\nexport function remove(this: NodePath) {\n this._assertUnremoved();\n\n this.resync();\n if (!this.opts?.noScope) {\n this._removeFromScope();\n }\n\n if (this._callRemovalHooks()) {\n this._markRemoved();\n return;\n }\n\n this.shareCommentsWithSiblings();\n this._remove();\n this._markRemoved();\n}\n\nexport function _removeFromScope(this: NodePath) {\n const bindings = this.getBindingIdentifiers();\n Object.keys(bindings).forEach(name => this.scope.removeBinding(name));\n}\n\nexport function _callRemovalHooks(this: NodePath) {\n for (const fn of hooks) {\n if (fn(this, this.parentPath)) return true;\n }\n}\n\nexport function _remove(this: NodePath) {\n if (Array.isArray(this.container)) {\n this.container.splice(this.key as number, 1);\n this.updateSiblingKeys(this.key as number, -1);\n } else {\n this._replaceWith(null);\n }\n}\n\nexport function _markRemoved(this: NodePath) {\n // this.shouldSkip = true; this.removed = true;\n this._traverseFlags |= SHOULD_SKIP | REMOVED;\n if (this.parent) pathCache.get(this.parent).delete(this.node);\n this.node = null;\n}\n\nexport function _assertUnremoved(this: NodePath) {\n if (this.removed) {\n throw this.buildCodeFrameError(\n \"NodePath has been removed so is read-only.\",\n );\n }\n}\n"],"mappings":";;;;;;;;;;;AAEA;AACA;AAEA;;AAEO,SAASA,MAAM,GAAiB;EAAA;EACrC,IAAI,CAACC,gBAAgB,EAAE;EAEvB,IAAI,CAACC,MAAM,EAAE;EACb,IAAI,gBAAC,IAAI,CAACC,IAAI,aAAT,WAAWC,OAAO,GAAE;IACvB,IAAI,CAACC,gBAAgB,EAAE;EACzB;EAEA,IAAI,IAAI,CAACC,iBAAiB,EAAE,EAAE;IAC5B,IAAI,CAACC,YAAY,EAAE;IACnB;EACF;EAEA,IAAI,CAACC,yBAAyB,EAAE;EAChC,IAAI,CAACC,OAAO,EAAE;EACd,IAAI,CAACF,YAAY,EAAE;AACrB;AAEO,SAASF,gBAAgB,GAAiB;EAC/C,MAAMK,QAAQ,GAAG,IAAI,CAACC,qBAAqB,EAAE;EAC7CC,MAAM,CAACC,IAAI,CAACH,QAAQ,CAAC,CAACI,OAAO,CAACC,IAAI,IAAI,IAAI,CAACC,KAAK,CAACC,aAAa,CAACF,IAAI,CAAC,CAAC;AACvE;AAEO,SAAST,iBAAiB,GAAiB;EAChD,KAAK,MAAMY,EAAE,IAAIC,mBAAK,EAAE;IACtB,IAAID,EAAE,CAAC,IAAI,EAAE,IAAI,CAACE,UAAU,CAAC,EAAE,OAAO,IAAI;EAC5C;AACF;AAEO,SAASX,OAAO,GAAiB;EACtC,IAAIY,KAAK,CAACC,OAAO,CAAC,IAAI,CAACC,SAAS,CAAC,EAAE;IACjC,IAAI,CAACA,SAAS,CAACC,MAAM,CAAC,IAAI,CAACC,GAAG,EAAY,CAAC,CAAC;IAC5C,IAAI,CAACC,iBAAiB,CAAC,IAAI,CAACD,GAAG,EAAY,CAAC,CAAC,CAAC;EAChD,CAAC,MAAM;IACL,IAAI,CAACE,YAAY,CAAC,IAAI,CAAC;EACzB;AACF;AAEO,SAASpB,YAAY,GAAiB;EAE3C,IAAI,CAACqB,cAAc,IAAIC,kBAAW,GAAGC,cAAO;EAC5C,IAAI,IAAI,CAACC,MAAM,EAAEC,WAAS,CAACC,GAAG,CAAC,IAAI,CAACF,MAAM,CAAC,CAACG,MAAM,CAAC,IAAI,CAACC,IAAI,CAAC;EAC7D,IAAI,CAACA,IAAI,GAAG,IAAI;AAClB;AAEO,SAASlC,gBAAgB,GAAiB;EAC/C,IAAI,IAAI,CAACmC,OAAO,EAAE;IAChB,MAAM,IAAI,CAACC,mBAAmB,CAC5B,4CAA4C,CAC7C;EACH;AACF"}
+219
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@@ -0,0 +1,219 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports._replaceWith = _replaceWith;
exports.replaceExpressionWithStatements = replaceExpressionWithStatements;
exports.replaceInline = replaceInline;
exports.replaceWith = replaceWith;
exports.replaceWithMultiple = replaceWithMultiple;
exports.replaceWithSourceString = replaceWithSourceString;
var _codeFrame = require("@babel/code-frame");
var _index = require("../index");
var _index2 = require("./index");
var _cache = require("../cache");
var _parser = require("@babel/parser");
var _t = require("@babel/types");
var _helperHoistVariables = require("@babel/helper-hoist-variables");
const {
FUNCTION_TYPES,
arrowFunctionExpression,
assignmentExpression,
awaitExpression,
blockStatement,
callExpression,
cloneNode,
expressionStatement,
identifier,
inheritLeadingComments,
inheritTrailingComments,
inheritsComments,
isExpression,
isProgram,
isStatement,
removeComments,
returnStatement,
toSequenceExpression,
validate,
yieldExpression
} = _t;
function replaceWithMultiple(nodes) {
var _pathCache$get;
this.resync();
nodes = this._verifyNodeList(nodes);
inheritLeadingComments(nodes[0], this.node);
inheritTrailingComments(nodes[nodes.length - 1], this.node);
(_pathCache$get = _cache.path.get(this.parent)) == null ? void 0 : _pathCache$get.delete(this.node);
this.node =
this.container[this.key] = null;
const paths = this.insertAfter(nodes);
if (this.node) {
this.requeue();
} else {
this.remove();
}
return paths;
}
function replaceWithSourceString(replacement) {
this.resync();
let ast;
try {
replacement = `(${replacement})`;
ast = (0, _parser.parse)(replacement);
} catch (err) {
const loc = err.loc;
if (loc) {
err.message += " - make sure this is an expression.\n" + (0, _codeFrame.codeFrameColumns)(replacement, {
start: {
line: loc.line,
column: loc.column + 1
}
});
err.code = "BABEL_REPLACE_SOURCE_ERROR";
}
throw err;
}
const expressionAST = ast.program.body[0].expression;
_index.default.removeProperties(expressionAST);
return this.replaceWith(expressionAST);
}
function replaceWith(replacementPath) {
this.resync();
if (this.removed) {
throw new Error("You can't replace this node, we've already removed it");
}
let replacement = replacementPath instanceof _index2.default ? replacementPath.node : replacementPath;
if (!replacement) {
throw new Error("You passed `path.replaceWith()` a falsy node, use `path.remove()` instead");
}
if (this.node === replacement) {
return [this];
}
if (this.isProgram() && !isProgram(replacement)) {
throw new Error("You can only replace a Program root node with another Program node");
}
if (Array.isArray(replacement)) {
throw new Error("Don't use `path.replaceWith()` with an array of nodes, use `path.replaceWithMultiple()`");
}
if (typeof replacement === "string") {
throw new Error("Don't use `path.replaceWith()` with a source string, use `path.replaceWithSourceString()`");
}
let nodePath = "";
if (this.isNodeType("Statement") && isExpression(replacement)) {
if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement) && !this.parentPath.isExportDefaultDeclaration()) {
replacement = expressionStatement(replacement);
nodePath = "expression";
}
}
if (this.isNodeType("Expression") && isStatement(replacement)) {
if (!this.canHaveVariableDeclarationOrExpression() && !this.canSwapBetweenExpressionAndStatement(replacement)) {
return this.replaceExpressionWithStatements([replacement]);
}
}
const oldNode = this.node;
if (oldNode) {
inheritsComments(replacement, oldNode);
removeComments(oldNode);
}
this._replaceWith(replacement);
this.type = replacement.type;
this.setScope();
this.requeue();
return [nodePath ? this.get(nodePath) : this];
}
function _replaceWith(node) {
var _pathCache$get2;
if (!this.container) {
throw new ReferenceError("Container is falsy");
}
if (this.inList) {
validate(this.parent, this.key, [node]);
} else {
validate(this.parent, this.key, node);
}
this.debug(`Replace with ${node == null ? void 0 : node.type}`);
(_pathCache$get2 = _cache.path.get(this.parent)) == null ? void 0 : _pathCache$get2.set(node, this).delete(this.node);
this.node =
this.container[this.key] = node;
}
function replaceExpressionWithStatements(nodes) {
this.resync();
const nodesAsSequenceExpression = toSequenceExpression(nodes, this.scope);
if (nodesAsSequenceExpression) {
return this.replaceWith(nodesAsSequenceExpression)[0].get("expressions");
}
const functionParent = this.getFunctionParent();
const isParentAsync = functionParent == null ? void 0 : functionParent.is("async");
const isParentGenerator = functionParent == null ? void 0 : functionParent.is("generator");
const container = arrowFunctionExpression([], blockStatement(nodes));
this.replaceWith(callExpression(container, []));
const callee = this.get("callee");
(0, _helperHoistVariables.default)(callee.get("body"), id => {
this.scope.push({
id
});
}, "var");
const completionRecords = this.get("callee").getCompletionRecords();
for (const path of completionRecords) {
if (!path.isExpressionStatement()) continue;
const loop = path.findParent(path => path.isLoop());
if (loop) {
let uid = loop.getData("expressionReplacementReturnUid");
if (!uid) {
uid = callee.scope.generateDeclaredUidIdentifier("ret");
callee.get("body").pushContainer("body", returnStatement(cloneNode(uid)));
loop.setData("expressionReplacementReturnUid", uid);
} else {
uid = identifier(uid.name);
}
path.get("expression").replaceWith(assignmentExpression("=", cloneNode(uid), path.node.expression));
} else {
path.replaceWith(returnStatement(path.node.expression));
}
}
callee.arrowFunctionToExpression();
const newCallee = callee;
const needToAwaitFunction = isParentAsync && _index.default.hasType(this.get("callee.body").node, "AwaitExpression", FUNCTION_TYPES);
const needToYieldFunction = isParentGenerator && _index.default.hasType(this.get("callee.body").node, "YieldExpression", FUNCTION_TYPES);
if (needToAwaitFunction) {
newCallee.set("async", true);
if (!needToYieldFunction) {
this.replaceWith(awaitExpression(this.node));
}
}
if (needToYieldFunction) {
newCallee.set("generator", true);
this.replaceWith(yieldExpression(this.node, true));
}
return newCallee.get("body.body");
}
function replaceInline(nodes) {
this.resync();
if (Array.isArray(nodes)) {
if (Array.isArray(this.container)) {
nodes = this._verifyNodeList(nodes);
const paths = this._containerInsertAfter(nodes);
this.remove();
return paths;
} else {
return this.replaceWithMultiple(nodes);
}
} else {
return this.replaceWith(nodes);
}
}
//# sourceMappingURL=replacement.js.map
+1
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@@ -0,0 +1 @@
{"version":3,"names":["FUNCTION_TYPES","arrowFunctionExpression","assignmentExpression","awaitExpression","blockStatement","callExpression","cloneNode","expressionStatement","identifier","inheritLeadingComments","inheritTrailingComments","inheritsComments","isExpression","isProgram","isStatement","removeComments","returnStatement","toSequenceExpression","validate","yieldExpression","replaceWithMultiple","nodes","resync","_verifyNodeList","node","length","pathCache","get","parent","delete","container","key","paths","insertAfter","requeue","remove","replaceWithSourceString","replacement","ast","parse","err","loc","message","codeFrameColumns","start","line","column","code","expressionAST","program","body","expression","traverse","removeProperties","replaceWith","replacementPath","removed","Error","NodePath","Array","isArray","nodePath","isNodeType","canHaveVariableDeclarationOrExpression","canSwapBetweenExpressionAndStatement","parentPath","isExportDefaultDeclaration","replaceExpressionWithStatements","oldNode","_replaceWith","type","setScope","ReferenceError","inList","debug","set","nodesAsSequenceExpression","scope","functionParent","getFunctionParent","isParentAsync","is","isParentGenerator","callee","hoistVariables","id","push","completionRecords","getCompletionRecords","path","isExpressionStatement","loop","findParent","isLoop","uid","getData","generateDeclaredUidIdentifier","pushContainer","setData","name","arrowFunctionToExpression","newCallee","needToAwaitFunction","hasType","needToYieldFunction","replaceInline","_containerInsertAfter"],"sources":["../../src/path/replacement.ts"],"sourcesContent":["// This file contains methods responsible for replacing a node with another.\n\nimport { codeFrameColumns } from \"@babel/code-frame\";\nimport traverse from \"../index\";\nimport NodePath from \"./index\";\nimport { path as pathCache } from \"../cache\";\nimport { parse } from \"@babel/parser\";\nimport {\n FUNCTION_TYPES,\n arrowFunctionExpression,\n assignmentExpression,\n awaitExpression,\n blockStatement,\n callExpression,\n cloneNode,\n expressionStatement,\n identifier,\n inheritLeadingComments,\n inheritTrailingComments,\n inheritsComments,\n isExpression,\n isProgram,\n isStatement,\n removeComments,\n returnStatement,\n toSequenceExpression,\n validate,\n yieldExpression,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimport hoistVariables from \"@babel/helper-hoist-variables\";\n\n/**\n * Replace a node with an array of multiple. This method performs the following steps:\n *\n * - Inherit the comments of first provided node with that of the current node.\n * - Insert the provided nodes after the current node.\n * - Remove the current node.\n */\n\nexport function replaceWithMultiple(\n this: NodePath,\n nodes: t.Node | t.Node[],\n): NodePath[] {\n this.resync();\n\n nodes = this._verifyNodeList(nodes);\n inheritLeadingComments(nodes[0], this.node);\n inheritTrailingComments(nodes[nodes.length - 1], this.node);\n pathCache.get(this.parent)?.delete(this.node);\n this.node =\n // @ts-expect-error this.key must present in this.container\n this.container[this.key] = null;\n const paths = this.insertAfter(nodes);\n\n if (this.node) {\n this.requeue();\n } else {\n this.remove();\n }\n return paths;\n}\n\n/**\n * Parse a string as an expression and replace the current node with the result.\n *\n * NOTE: This is typically not a good idea to use. Building source strings when\n * transforming ASTs is an antipattern and SHOULD NOT be encouraged. Even if it's\n * easier to use, your transforms will be extremely brittle.\n */\n\nexport function replaceWithSourceString(this: NodePath, replacement: string) {\n this.resync();\n let ast: t.File;\n\n try {\n replacement = `(${replacement})`;\n // @ts-expect-error todo: use babel-types ast typings in Babel parser\n ast = parse(replacement);\n } catch (err) {\n const loc = err.loc;\n if (loc) {\n err.message +=\n \" - make sure this is an expression.\\n\" +\n codeFrameColumns(replacement, {\n start: {\n line: loc.line,\n column: loc.column + 1,\n },\n });\n err.code = \"BABEL_REPLACE_SOURCE_ERROR\";\n }\n throw err;\n }\n\n const expressionAST = (ast.program.body[0] as t.ExpressionStatement)\n .expression;\n traverse.removeProperties(expressionAST);\n return this.replaceWith(expressionAST);\n}\n\n/**\n * Replace the current node with another.\n */\n\nexport function replaceWith<R extends t.Node>(\n this: NodePath,\n replacementPath: R | NodePath<R>,\n): [NodePath<R>] {\n this.resync();\n\n if (this.removed) {\n throw new Error(\"You can't replace this node, we've already removed it\");\n }\n\n let replacement: t.Node =\n replacementPath instanceof NodePath\n ? replacementPath.node\n : replacementPath;\n\n if (!replacement) {\n throw new Error(\n \"You passed `path.Line truncated
+90
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@@ -0,0 +1,90 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
class Binding {
constructor({
identifier,
scope,
path,
kind
}) {
this.identifier = void 0;
this.scope = void 0;
this.path = void 0;
this.kind = void 0;
this.constantViolations = [];
this.constant = true;
this.referencePaths = [];
this.referenced = false;
this.references = 0;
this.identifier = identifier;
this.scope = scope;
this.path = path;
this.kind = kind;
if ((kind === "var" || kind === "hoisted") &&
isDeclaredInLoop(path || (() => {
throw new Error("Internal Babel error: unreachable ");
})())) {
this.reassign(path);
}
this.clearValue();
}
deoptValue() {
this.clearValue();
this.hasDeoptedValue = true;
}
setValue(value) {
if (this.hasDeoptedValue) return;
this.hasValue = true;
this.value = value;
}
clearValue() {
this.hasDeoptedValue = false;
this.hasValue = false;
this.value = null;
}
reassign(path) {
this.constant = false;
if (this.constantViolations.indexOf(path) !== -1) {
return;
}
this.constantViolations.push(path);
}
reference(path) {
if (this.referencePaths.indexOf(path) !== -1) {
return;
}
this.referenced = true;
this.references++;
this.referencePaths.push(path);
}
dereference() {
this.references--;
this.referenced = !!this.references;
}
}
exports.default = Binding;
function isDeclaredInLoop(path) {
for (let {
parentPath,
key
} = path; parentPath; ({
parentPath,
key
} = parentPath)) {
if (parentPath.isFunctionParent()) return false;
if (parentPath.isWhile() || parentPath.isForXStatement() || parentPath.isForStatement() && key === "body") {
return true;
}
}
return false;
}
//# sourceMappingURL=binding.js.map
+1
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@@ -0,0 +1 @@
{"version":3,"names":["Binding","constructor","identifier","scope","path","kind","constantViolations","constant","referencePaths","referenced","references","isDeclaredInLoop","Error","reassign","clearValue","deoptValue","hasDeoptedValue","setValue","value","hasValue","indexOf","push","reference","dereference","parentPath","key","isFunctionParent","isWhile","isForXStatement","isForStatement"],"sources":["../../src/scope/binding.ts"],"sourcesContent":["import type NodePath from \"../path\";\nimport type * as t from \"@babel/types\";\nimport type Scope from \"./index\";\n\nexport type BindingKind =\n | \"var\" /* var declarator */\n | \"let\" /* let declarator, class declaration id, catch clause parameters */\n | \"const\" /* const/using declarator */\n | \"module\" /* import specifiers */\n | \"hoisted\" /* function declaration id */\n | \"param\" /* function declaration parameters */\n | \"local\" /* function expression id, class expression id */\n | \"unknown\"; /* export specifiers */\n/**\n * This class is responsible for a binding inside of a scope.\n *\n * It tracks the following:\n *\n * * Node path.\n * * Amount of times referenced by other nodes.\n * * Paths to nodes that reassign or modify this binding.\n * * The kind of binding. (Is it a parameter, declaration etc)\n */\n\nexport default class Binding {\n identifier: t.Identifier;\n scope: Scope;\n path: NodePath;\n kind: BindingKind;\n\n constructor({\n identifier,\n scope,\n path,\n kind,\n }: {\n identifier: t.Identifier;\n scope: Scope;\n path: NodePath;\n kind: BindingKind;\n }) {\n this.identifier = identifier;\n this.scope = scope;\n this.path = path;\n this.kind = kind;\n\n if (\n (kind === \"var\" || kind === \"hoisted\") &&\n // https://github.com/rollup/rollup/issues/4654\n // Rollup removes the path argument from this call. Add an\n // unreachable IIFE (that rollup doesn't know is unreachable)\n // with side effects, to prevent it from messing up with arguments.\n // You can reproduce this with\n // BABEL_8_BREAKING=true make prepublish-build\n isDeclaredInLoop(\n path ||\n (() => {\n throw new Error(\"Internal Babel error: unreachable \");\n })(),\n )\n ) {\n this.reassign(path);\n }\n\n this.clearValue();\n }\n\n constantViolations: Array<NodePath> = [];\n constant: boolean = true;\n\n referencePaths: Array<NodePath> = [];\n referenced: boolean = false;\n references: number = 0;\n\n declare hasDeoptedValue: boolean;\n declare hasValue: boolean;\n declare value: any;\n\n deoptValue() {\n this.clearValue();\n this.hasDeoptedValue = true;\n }\n\n setValue(value: any) {\n if (this.hasDeoptedValue) return;\n this.hasValue = true;\n this.value = value;\n }\n\n clearValue() {\n this.hasDeoptedValue = false;\n this.hasValue = false;\n this.value = null;\n }\n\n /**\n * Register a constant violation with the provided `path`.\n */\n\n reassign(path: NodePath) {\n this.constant = false;\n if (this.constantViolations.indexOf(path) !== -1) {\n return;\n }\n this.constantViolations.push(path);\n }\n\n /**\n * Increment the amount of references to this binding.\n */\n\n reference(path: NodePath) {\n if (this.referencePaths.indexOf(path) !== -1) {\n return;\n }\n this.referenced = true;\n this.references++;\n this.referencePaths.push(path);\n }\n\n /**\n * Decrement the amount of references to this binding.\n */\n\n dereference() {\n this.references--;\n this.referenced = !!this.references;\n }\n}\n\nfunction isDeclaredInLoop(path: NodePath) {\n for (\n let { parentPath, key } = path;\n parentPath;\n { parentPath, key } = parentPath\n ) {\n if (parentPath.isFunctionParent()) return false;\n if (\n parentPath.isWhile() ||\n parentPath.isForXStatement() ||\n (parentPath.isForStatement() && key === \"body\")\n ) {\n return true;\n }\n }\n return false;\n}\n"],"mappings":";;;;;;;AAwBe,MAAMA,OAAO,CAAC;EAM3BC,WAAW,CAAC;IACVC,UAAU;IACVC,KAAK;IACLC,IAAI;IACJC;EAMF,CAAC,EAAE;IAAA,KAfHH,UAAU;IAAA,KACVC,KAAK;IAAA,KACLC,IAAI;IAAA,KACJC,IAAI;IAAA,KAuCJC,kBAAkB,GAAoB,EAAE;IAAA,KACxCC,QAAQ,GAAY,IAAI;IAAA,KAExBC,cAAc,GAAoB,EAAE;IAAA,KACpCC,UAAU,GAAY,KAAK;IAAA,KAC3BC,UAAU,GAAW,CAAC;IA/BpB,IAAI,CAACR,UAAU,GAAGA,UAAU;IAC5B,IAAI,CAACC,KAAK,GAAGA,KAAK;IAClB,IAAI,CAACC,IAAI,GAAGA,IAAI;IAChB,IAAI,CAACC,IAAI,GAAGA,IAAI;IAEhB,IACE,CAACA,IAAI,KAAK,KAAK,IAAIA,IAAI,KAAK,SAAS;IAOrCM,gBAAgB,CACdP,IAAI,IACF,CAAC,MAAM;MACL,MAAM,IAAIQ,KAAK,CAAC,oCAAoC,CAAC;IACvD,CAAC,GAAG,CACP,EACD;MACA,IAAI,CAACC,QAAQ,CAACT,IAAI,CAAC;IACrB;IAEA,IAAI,CAACU,UAAU,EAAE;EACnB;EAaAC,UAAU,GAAG;IACX,IAAI,CAACD,UAAU,EAAE;IACjB,IAAI,CAACE,eAAe,GAAG,IAAI;EAC7B;EAEAC,QAAQ,CAACC,KAAU,EAAE;IACnB,IAAI,IAAI,CAACF,eAAe,EAAE;IAC1B,IAAI,CAACG,QAAQ,GAAG,IAAI;IACpB,IAAI,CAACD,KAAK,GAAGA,KAAK;EACpB;EAEAJ,UAAU,GAAG;IACX,IALine truncated
+907
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@@ -0,0 +1,907 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _renamer = require("./lib/renamer");
var _index = require("../index");
var _binding = require("./binding");
var _globals = require("globals");
var _t = require("@babel/types");
var _cache = require("../cache");
const {
NOT_LOCAL_BINDING,
callExpression,
cloneNode,
getBindingIdentifiers,
identifier,
isArrayExpression,
isBinary,
isClass,
isClassBody,
isClassDeclaration,
isExportAllDeclaration,
isExportDefaultDeclaration,
isExportNamedDeclaration,
isFunctionDeclaration,
isIdentifier,
isImportDeclaration,
isLiteral,
isMethod,
isModuleDeclaration,
isModuleSpecifier,
isNullLiteral,
isObjectExpression,
isProperty,
isPureish,
isRegExpLiteral,
isSuper,
isTaggedTemplateExpression,
isTemplateLiteral,
isThisExpression,
isUnaryExpression,
isVariableDeclaration,
matchesPattern,
memberExpression,
numericLiteral,
toIdentifier,
unaryExpression,
variableDeclaration,
variableDeclarator,
isRecordExpression,
isTupleExpression,
isObjectProperty,
isTopicReference,
isMetaProperty,
isPrivateName
} = _t;
function gatherNodeParts(node, parts) {
switch (node == null ? void 0 : node.type) {
default:
if (isModuleDeclaration(node)) {
if ((isExportAllDeclaration(node) || isExportNamedDeclaration(node) || isImportDeclaration(node)) && node.source) {
gatherNodeParts(node.source, parts);
} else if ((isExportNamedDeclaration(node) || isImportDeclaration(node)) && node.specifiers && node.specifiers.length) {
for (const e of node.specifiers) gatherNodeParts(e, parts);
} else if ((isExportDefaultDeclaration(node) || isExportNamedDeclaration(node)) && node.declaration) {
gatherNodeParts(node.declaration, parts);
}
} else if (isModuleSpecifier(node)) {
gatherNodeParts(node.local, parts);
} else if (isLiteral(node) && !isNullLiteral(node) && !isRegExpLiteral(node) && !isTemplateLiteral(node)) {
parts.push(node.value);
}
break;
case "MemberExpression":
case "OptionalMemberExpression":
case "JSXMemberExpression":
gatherNodeParts(node.object, parts);
gatherNodeParts(node.property, parts);
break;
case "Identifier":
case "JSXIdentifier":
parts.push(node.name);
break;
case "CallExpression":
case "OptionalCallExpression":
case "NewExpression":
gatherNodeParts(node.callee, parts);
break;
case "ObjectExpression":
case "ObjectPattern":
for (const e of node.properties) {
gatherNodeParts(e, parts);
}
break;
case "SpreadElement":
case "RestElement":
gatherNodeParts(node.argument, parts);
break;
case "ObjectProperty":
case "ObjectMethod":
case "ClassProperty":
case "ClassMethod":
case "ClassPrivateProperty":
case "ClassPrivateMethod":
gatherNodeParts(node.key, parts);
break;
case "ThisExpression":
parts.push("this");
break;
case "Super":
parts.push("super");
break;
case "Import":
parts.push("import");
break;
case "DoExpression":
parts.push("do");
break;
case "YieldExpression":
parts.push("yield");
gatherNodeParts(node.argument, parts);
break;
case "AwaitExpression":
parts.push("await");
gatherNodeParts(node.argument, parts);
break;
case "AssignmentExpression":
gatherNodeParts(node.left, parts);
break;
case "VariableDeclarator":
gatherNodeParts(node.id, parts);
break;
case "FunctionExpression":
case "FunctionDeclaration":
case "ClassExpression":
case "ClassDeclaration":
gatherNodeParts(node.id, parts);
break;
case "PrivateName":
gatherNodeParts(node.id, parts);
break;
case "ParenthesizedExpression":
gatherNodeParts(node.expression, parts);
break;
case "UnaryExpression":
case "UpdateExpression":
gatherNodeParts(node.argument, parts);
break;
case "MetaProperty":
gatherNodeParts(node.meta, parts);
gatherNodeParts(node.property, parts);
break;
case "JSXElement":
gatherNodeParts(node.openingElement, parts);
break;
case "JSXOpeningElement":
gatherNodeParts(node.name, parts);
break;
case "JSXFragment":
gatherNodeParts(node.openingFragment, parts);
break;
case "JSXOpeningFragment":
parts.push("Fragment");
break;
case "JSXNamespacedName":
gatherNodeParts(node.namespace, parts);
gatherNodeParts(node.name, parts);
break;
}
}
const collectorVisitor = {
ForStatement(path) {
const declar = path.get("init");
if (declar.isVar()) {
const {
scope
} = path;
const parentScope = scope.getFunctionParent() || scope.getProgramParent();
parentScope.registerBinding("var", declar);
}
},
Declaration(path) {
if (path.isBlockScoped()) return;
if (path.isImportDeclaration()) return;
if (path.isExportDeclaration()) return;
const parent = path.scope.getFunctionParent() || path.scope.getProgramParent();
parent.registerDeclaration(path);
},
ImportDeclaration(path) {
const parent = path.scope.getBlockParent();
parent.registerDeclaration(path);
},
ReferencedIdentifier(path, state) {
state.references.push(path);
},
ForXStatement(path, state) {
const left = path.get("left");
if (left.isPattern() || left.isIdentifier()) {
state.constantViolations.push(path);
}
else if (left.isVar()) {
const {
scope
} = path;
const parentScope = scope.getFunctionParent() || scope.getProgramParent();
parentScope.registerBinding("var", left);
}
},
ExportDeclaration: {
exit(path) {
const {
node,
scope
} = path;
if (isExportAllDeclaration(node)) return;
const declar = node.declaration;
if (isClassDeclaration(declar) || isFunctionDeclaration(declar)) {
const id = declar.id;
if (!id) return;
const binding = scope.getBinding(id.name);
binding == null ? void 0 : binding.reference(path);
} else if (isVariableDeclaration(declar)) {
for (const decl of declar.declarations) {
for (const name of Object.keys(getBindingIdentifiers(decl))) {
const binding = scope.getBinding(name);
binding == null ? void 0 : binding.reference(path);
}
}
}
}
},
LabeledStatement(path) {
path.scope.getBlockParent().registerDeclaration(path);
},
AssignmentExpression(path, state) {
state.assignments.push(path);
},
UpdateExpression(path, state) {
state.constantViolations.push(path);
},
UnaryExpression(path, state) {
if (path.node.operator === "delete") {
state.constantViolations.push(path);
}
},
BlockScoped(path) {
let scope = path.scope;
if (scope.path === path) scope = scope.parent;
const parent = scope.getBlockParent();
parent.registerDeclaration(path);
if (path.isClassDeclaration() && path.node.id) {
const id = path.node.id;
const name = id.name;
path.scope.bindings[name] = path.scope.parent.getBinding(name);
}
},
CatchClause(path) {
path.scope.registerBinding("let", path);
},
Function(path) {
const params = path.get("params");
for (const param of params) {
path.scope.registerBinding("param", param);
}
if (path.isFunctionExpression() && path.has("id") &&
!path.get("id").node[NOT_LOCAL_BINDING]) {
path.scope.registerBinding("local", path.get("id"), path);
}
},
ClassExpression(path) {
if (path.has("id") &&
!path.get("id").node[NOT_LOCAL_BINDING]) {
path.scope.registerBinding("local", path);
}
}
};
let uid = 0;
class Scope {
constructor(path) {
this.uid = void 0;
this.path = void 0;
this.block = void 0;
this.labels = void 0;
this.inited = void 0;
this.bindings = void 0;
this.references = void 0;
this.globals = void 0;
this.uids = void 0;
this.data = void 0;
this.crawling = void 0;
const {
node
} = path;
const cached = _cache.scope.get(node);
if ((cached == null ? void 0 : cached.path) === path) {
return cached;
}
_cache.scope.set(node, this);
this.uid = uid++;
this.block = node;
this.path = path;
this.labels = new Map();
this.inited = false;
}
get parent() {
var _parent;
let parent,
path = this.path;
do {
const shouldSkip = path.key === "key" || path.listKey === "decorators";
path = path.parentPath;
if (shouldSkip && path.isMethod()) path = path.parentPath;
if (path && path.isScope()) parent = path;
} while (path && !parent);
return (_parent = parent) == null ? void 0 : _parent.scope;
}
get parentBlock() {
return this.path.parent;
}
get hub() {
return this.path.hub;
}
traverse(node, opts, state) {
(0, _index.default)(node, opts, this, state, this.path);
}
generateDeclaredUidIdentifier(name) {
const id = this.generateUidIdentifier(name);
this.push({
id
});
return cloneNode(id);
}
generateUidIdentifier(name) {
return identifier(this.generateUid(name));
}
generateUid(name = "temp") {
name = toIdentifier(name).replace(/^_+/, "").replace(/[0-9]+$/g, "");
let uid;
let i = 1;
do {
uid = this._generateUid(name, i);
i++;
} while (this.hasLabel(uid) || this.hasBinding(uid) || this.hasGlobal(uid) || this.hasReference(uid));
const program = this.getProgramParent();
program.references[uid] = true;
program.uids[uid] = true;
return uid;
}
_generateUid(name, i) {
let id = name;
if (i > 1) id += i;
return `_${id}`;
}
generateUidBasedOnNode(node, defaultName) {
const parts = [];
gatherNodeParts(node, parts);
let id = parts.join("$");
id = id.replace(/^_/, "") || defaultName || "ref";
return this.generateUid(id.slice(0, 20));
}
generateUidIdentifierBasedOnNode(node, defaultName) {
return identifier(this.generateUidBasedOnNode(node, defaultName));
}
isStatic(node) {
if (isThisExpression(node) || isSuper(node) || isTopicReference(node)) {
return true;
}
if (isIdentifier(node)) {
const binding = this.getBinding(node.name);
if (binding) {
return binding.constant;
} else {
return this.hasBinding(node.name);
}
}
return false;
}
maybeGenerateMemoised(node, dontPush) {
if (this.isStatic(node)) {
return null;
} else {
const id = this.generateUidIdentifierBasedOnNode(node);
if (!dontPush) {
this.push({
id
});
return cloneNode(id);
}
return id;
}
}
checkBlockScopedCollisions(local, kind, name, id) {
if (kind === "param") return;
if (local.kind === "local") return;
const duplicate =
kind === "let" || local.kind === "let" || local.kind === "const" || local.kind === "module" ||
local.kind === "param" && kind === "const";
if (duplicate) {
throw this.hub.buildError(id, `Duplicate declaration "${name}"`, TypeError);
}
}
rename(oldName, newName, block) {
const binding = this.getBinding(oldName);
if (binding) {
newName = newName || this.generateUidIdentifier(oldName).name;
return new _renamer.default(binding, oldName, newName).rename(block);
}
}
_renameFromMap(map, oldName, newName, value) {
if (map[oldName]) {
map[newName] = value;
map[oldName] = null;
}
}
dump() {
const sep = "-".repeat(60);
console.log(sep);
let scope = this;
do {
console.log("#", scope.block.type);
for (const name of Object.keys(scope.bindings)) {
const binding = scope.bindings[name];
console.log(" -", name, {
constant: binding.constant,
references: binding.references,
violations: binding.constantViolations.length,
kind: binding.kind
});
}
} while (scope = scope.parent);
console.log(sep);
}
toArray(node, i, arrayLikeIsIterable) {
if (isIdentifier(node)) {
const binding = this.getBinding(node.name);
if (binding != null && binding.constant && binding.path.isGenericType("Array")) {
return node;
}
}
if (isArrayExpression(node)) {
return node;
}
if (isIdentifier(node, {
name: "arguments"
})) {
return callExpression(memberExpression(memberExpression(memberExpression(identifier("Array"), identifier("prototype")), identifier("slice")), identifier("call")), [node]);
}
let helperName;
const args = [node];
if (i === true) {
helperName = "toConsumableArray";
} else if (typeof i === "number") {
args.push(numericLiteral(i));
helperName = "slicedToArray";
} else {
helperName = "toArray";
}
if (arrayLikeIsIterable) {
args.unshift(this.hub.addHelper(helperName));
helperName = "maybeArrayLike";
}
return callExpression(this.hub.addHelper(helperName), args);
}
hasLabel(name) {
return !!this.getLabel(name);
}
getLabel(name) {
return this.labels.get(name);
}
registerLabel(path) {
this.labels.set(path.node.label.name, path);
}
registerDeclaration(path) {
if (path.isLabeledStatement()) {
this.registerLabel(path);
} else if (path.isFunctionDeclaration()) {
this.registerBinding("hoisted", path.get("id"), path);
} else if (path.isVariableDeclaration()) {
const declarations = path.get("declarations");
const {
kind
} = path.node;
for (const declar of declarations) {
this.registerBinding(kind === "using" ? "const" : kind, declar);
}
} else if (path.isClassDeclaration()) {
if (path.node.declare) return;
this.registerBinding("let", path);
} else if (path.isImportDeclaration()) {
const specifiers = path.get("specifiers");
for (const specifier of specifiers) {
this.registerBinding("module", specifier);
}
} else if (path.isExportDeclaration()) {
const declar = path.get("declaration");
if (declar.isClassDeclaration() || declar.isFunctionDeclaration() || declar.isVariableDeclaration()) {
this.registerDeclaration(declar);
}
} else {
this.registerBinding("unknown", path);
}
}
buildUndefinedNode() {
return unaryExpression("void", numericLiteral(0), true);
}
registerConstantViolation(path) {
const ids = path.getBindingIdentifiers();
for (const name of Object.keys(ids)) {
const binding = this.getBinding(name);
if (binding) binding.reassign(path);
}
}
registerBinding(kind, path, bindingPath = path) {
if (!kind) throw new ReferenceError("no `kind`");
if (path.isVariableDeclaration()) {
const declarators = path.get("declarations");
for (const declar of declarators) {
this.registerBinding(kind, declar);
}
return;
}
const parent = this.getProgramParent();
const ids = path.getOuterBindingIdentifiers(true);
for (const name of Object.keys(ids)) {
parent.references[name] = true;
for (const id of ids[name]) {
const local = this.getOwnBinding(name);
if (local) {
if (local.identifier === id) continue;
this.checkBlockScopedCollisions(local, kind, name, id);
}
if (local) {
this.registerConstantViolation(bindingPath);
} else {
this.bindings[name] = new _binding.default({
identifier: id,
scope: this,
path: bindingPath,
kind: kind
});
}
}
}
}
addGlobal(node) {
this.globals[node.name] = node;
}
hasUid(name) {
let scope = this;
do {
if (scope.uids[name]) return true;
} while (scope = scope.parent);
return false;
}
hasGlobal(name) {
let scope = this;
do {
if (scope.globals[name]) return true;
} while (scope = scope.parent);
return false;
}
hasReference(name) {
return !!this.getProgramParent().references[name];
}
isPure(node, constantsOnly) {
if (isIdentifier(node)) {
const binding = this.getBinding(node.name);
if (!binding) return false;
if (constantsOnly) return binding.constant;
return true;
} else if (isThisExpression(node) || isMetaProperty(node) || isTopicReference(node) || isPrivateName(node)) {
return true;
} else if (isClass(node)) {
var _node$decorators;
if (node.superClass && !this.isPure(node.superClass, constantsOnly)) {
return false;
}
if (((_node$decorators = node.decorators) == null ? void 0 : _node$decorators.length) > 0) {
return false;
}
return this.isPure(node.body, constantsOnly);
} else if (isClassBody(node)) {
for (const method of node.body) {
if (!this.isPure(method, constantsOnly)) return false;
}
return true;
} else if (isBinary(node)) {
return this.isPure(node.left, constantsOnly) && this.isPure(node.right, constantsOnly);
} else if (isArrayExpression(node) || isTupleExpression(node)) {
for (const elem of node.elements) {
if (elem !== null && !this.isPure(elem, constantsOnly)) return false;
}
return true;
} else if (isObjectExpression(node) || isRecordExpression(node)) {
for (const prop of node.properties) {
if (!this.isPure(prop, constantsOnly)) return false;
}
return true;
} else if (isMethod(node)) {
var _node$decorators2;
if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
if (((_node$decorators2 = node.decorators) == null ? void 0 : _node$decorators2.length) > 0) {
return false;
}
return true;
} else if (isProperty(node)) {
var _node$decorators3;
if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
if (((_node$decorators3 = node.decorators) == null ? void 0 : _node$decorators3.length) > 0) {
return false;
}
if (isObjectProperty(node) || node.static) {
if (node.value !== null && !this.isPure(node.value, constantsOnly)) {
return false;
}
}
return true;
} else if (isUnaryExpression(node)) {
return this.isPure(node.argument, constantsOnly);
} else if (isTaggedTemplateExpression(node)) {
return matchesPattern(node.tag, "String.raw") && !this.hasBinding("String", true) && this.isPure(node.quasi, constantsOnly);
} else if (isTemplateLiteral(node)) {
for (const expression of node.expressions) {
if (!this.isPure(expression, constantsOnly)) return false;
}
return true;
} else {
return isPureish(node);
}
}
setData(key, val) {
return this.data[key] = val;
}
getData(key) {
let scope = this;
do {
const data = scope.data[key];
if (data != null) return data;
} while (scope = scope.parent);
}
removeData(key) {
let scope = this;
do {
const data = scope.data[key];
if (data != null) scope.data[key] = null;
} while (scope = scope.parent);
}
init() {
if (!this.inited) {
this.inited = true;
this.crawl();
}
}
crawl() {
const path = this.path;
this.references = Object.create(null);
this.bindings = Object.create(null);
this.globals = Object.create(null);
this.uids = Object.create(null);
this.data = Object.create(null);
const programParent = this.getProgramParent();
if (programParent.crawling) return;
const state = {
references: [],
constantViolations: [],
assignments: []
};
this.crawling = true;
if (path.type !== "Program" && collectorVisitor._exploded) {
for (const visit of collectorVisitor.enter) {
visit(path, state);
}
const typeVisitors = collectorVisitor[path.type];
if (typeVisitors) {
for (const visit of typeVisitors.enter) {
visit(path, state);
}
}
}
path.traverse(collectorVisitor, state);
this.crawling = false;
for (const path of state.assignments) {
const ids = path.getBindingIdentifiers();
for (const name of Object.keys(ids)) {
if (path.scope.getBinding(name)) continue;
programParent.addGlobal(ids[name]);
}
path.scope.registerConstantViolation(path);
}
for (const ref of state.references) {
const binding = ref.scope.getBinding(ref.node.name);
if (binding) {
binding.reference(ref);
} else {
programParent.addGlobal(ref.node);
}
}
for (const path of state.constantViolations) {
path.scope.registerConstantViolation(path);
}
}
push(opts) {
let path = this.path;
if (path.isPattern()) {
path = this.getPatternParent().path;
} else if (!path.isBlockStatement() && !path.isProgram()) {
path = this.getBlockParent().path;
}
if (path.isSwitchStatement()) {
path = (this.getFunctionParent() || this.getProgramParent()).path;
}
if (path.isLoop() || path.isCatchClause() || path.isFunction()) {
path.ensureBlock();
path = path.get("body");
}
const unique = opts.unique;
const kind = opts.kind || "var";
const blockHoist = opts._blockHoist == null ? 2 : opts._blockHoist;
const dataKey = `declaration:${kind}:${blockHoist}`;
let declarPath = !unique && path.getData(dataKey);
if (!declarPath) {
const declar = variableDeclaration(kind, []);
declar._blockHoist = blockHoist;
[declarPath] = path.unshiftContainer("body", [declar]);
if (!unique) path.setData(dataKey, declarPath);
}
const declarator = variableDeclarator(opts.id, opts.init);
const len = declarPath.node.declarations.push(declarator);
path.scope.registerBinding(kind, declarPath.get("declarations")[len - 1]);
}
getProgramParent() {
let scope = this;
do {
if (scope.path.isProgram()) {
return scope;
}
} while (scope = scope.parent);
throw new Error("Couldn't find a Program");
}
getFunctionParent() {
let scope = this;
do {
if (scope.path.isFunctionParent()) {
return scope;
}
} while (scope = scope.parent);
return null;
}
getBlockParent() {
let scope = this;
do {
if (scope.path.isBlockParent()) {
return scope;
}
} while (scope = scope.parent);
throw new Error("We couldn't find a BlockStatement, For, Switch, Function, Loop or Program...");
}
getPatternParent() {
let scope = this;
do {
if (!scope.path.isPattern()) {
return scope.getBlockParent();
}
} while (scope = scope.parent.parent);
throw new Error("We couldn't find a BlockStatement, For, Switch, Function, Loop or Program...");
}
getAllBindings() {
const ids = Object.create(null);
let scope = this;
do {
for (const key of Object.keys(scope.bindings)) {
if (key in ids === false) {
ids[key] = scope.bindings[key];
}
}
scope = scope.parent;
} while (scope);
return ids;
}
getAllBindingsOfKind(...kinds) {
const ids = Object.create(null);
for (const kind of kinds) {
let scope = this;
do {
for (const name of Object.keys(scope.bindings)) {
const binding = scope.bindings[name];
if (binding.kind === kind) ids[name] = binding;
}
scope = scope.parent;
} while (scope);
}
return ids;
}
bindingIdentifierEquals(name, node) {
return this.getBindingIdentifier(name) === node;
}
getBinding(name) {
let scope = this;
let previousPath;
do {
const binding = scope.getOwnBinding(name);
if (binding) {
var _previousPath;
if ((_previousPath = previousPath) != null && _previousPath.isPattern() && binding.kind !== "param" && binding.kind !== "local") {
} else {
return binding;
}
} else if (!binding && name === "arguments" && scope.path.isFunction() && !scope.path.isArrowFunctionExpression()) {
break;
}
previousPath = scope.path;
} while (scope = scope.parent);
}
getOwnBinding(name) {
return this.bindings[name];
}
getBindingIdentifier(name) {
var _this$getBinding;
return (_this$getBinding = this.getBinding(name)) == null ? void 0 : _this$getBinding.identifier;
}
getOwnBindingIdentifier(name) {
const binding = this.bindings[name];
return binding == null ? void 0 : binding.identifier;
}
hasOwnBinding(name) {
return !!this.getOwnBinding(name);
}
hasBinding(name, noGlobals) {
if (!name) return false;
if (this.hasOwnBinding(name)) return true;
if (this.parentHasBinding(name, noGlobals)) return true;
if (this.hasUid(name)) return true;
if (!noGlobals && Scope.globals.includes(name)) return true;
if (!noGlobals && Scope.contextVariables.includes(name)) return true;
return false;
}
parentHasBinding(name, noGlobals) {
var _this$parent;
return (_this$parent = this.parent) == null ? void 0 : _this$parent.hasBinding(name, noGlobals);
}
moveBindingTo(name, scope) {
const info = this.getBinding(name);
if (info) {
info.scope.removeOwnBinding(name);
info.scope = scope;
scope.bindings[name] = info;
}
}
removeOwnBinding(name) {
delete this.bindings[name];
}
removeBinding(name) {
var _this$getBinding2;
(_this$getBinding2 = this.getBinding(name)) == null ? void 0 : _this$getBinding2.scope.removeOwnBinding(name);
let scope = this;
do {
if (scope.uids[name]) {
scope.uids[name] = false;
}
} while (scope = scope.parent);
}
}
exports.default = Scope;
Scope.globals = Object.keys(_globals.builtin);
Scope.contextVariables = ["arguments", "undefined", "Infinity", "NaN"];
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{"version":3,"names":["NOT_LOCAL_BINDING","callExpression","cloneNode","getBindingIdentifiers","identifier","isArrayExpression","isBinary","isClass","isClassBody","isClassDeclaration","isExportAllDeclaration","isExportDefaultDeclaration","isExportNamedDeclaration","isFunctionDeclaration","isIdentifier","isImportDeclaration","isLiteral","isMethod","isModuleDeclaration","isModuleSpecifier","isNullLiteral","isObjectExpression","isProperty","isPureish","isRegExpLiteral","isSuper","isTaggedTemplateExpression","isTemplateLiteral","isThisExpression","isUnaryExpression","isVariableDeclaration","matchesPattern","memberExpression","numericLiteral","toIdentifier","unaryExpression","variableDeclaration","variableDeclarator","isRecordExpression","isTupleExpression","isObjectProperty","isTopicReference","isMetaProperty","isPrivateName","gatherNodeParts","node","parts","type","source","specifiers","length","e","declaration","local","push","value","object","property","name","callee","properties","argument","key","left","id","expression","meta","openingElement","openingFragment","namespace","collectorVisitor","ForStatement","path","declar","get","isVar","scope","parentScope","getFunctionParent","getProgramParent","registerBinding","Declaration","isBlockScoped","isExportDeclaration","parent","registerDeclaration","ImportDeclaration","getBlockParent","ReferencedIdentifier","state","references","ForXStatement","isPattern","constantViolations","ExportDeclaration","exit","binding","getBinding","reference","decl","declarations","Object","keys","LabeledStatement","AssignmentExpression","assignments","UpdateExpression","UnaryExpression","operator","BlockScoped","bindings","CatchClause","Function","params","param","isFunctionExpression","has","ClassExpression","uid","Scope","constructor","block","labels","inited","globals","uids","data","crawling","cached","scopeCache","set","Map","shouldSkip","listKey","parentPath","isScope","parentBlock","hub","traverse","opts","generateDeclaredUidIdentifier","generateUidIdentifier","generateUid","replace","i","_generateUid","hasLabel","hasBinding","hasGlobal","hasReference","program","generateUidBasedOnNode","defaultName","join","slice","generateUidIdentifierBasedOnNode","isStatic","constant","maybeGenerateMemoised","dontPush","checkBlockScopedCollisions","kind","duplicate","buildError","TypeError","rename","oldName","newName","Renamer","_renameFromMap","map","dump","sep","repeat","console","log","violations","toArray","arrayLikeIsIterable","isGenericType","helperName","args","unshift","addHelper","getLabel","registerLabel","label","isLabeledStatement","declare","specifier","buildUndefinedNode","registerConstantViolation","ids","reassign","bindingPath","ReferenceError","declarators","getOuterBindingIdentifiers","getOwnBinding","Binding","addGlobal","hasUid","isPure","constantsOnly","superClass","decorators","body","method","right","elem","elements","prop","computed","static","tag","quasi","expressions","setData","val","getData","removeData","init","crawl","create","programParent","_exploded","visit","enter","typeVisitors","ref","getPatternParent","isBlockStatement","isProgram","isSwitchStatement","isLoop","isCatchClause","isFunction","ensureBlock","unique","blockHoist","_blockHoist","dataKey","declarPath","unshiftContainer","declarator","len","Error","isFunctionParent","isBlockParent","getAllBindings","getAllBindingsOfKind","kinds","bindingIdentifierEquals","getBindingIdentifier","previousPath","isArrowFunctionExpression","getOwnBindingIdentifier","hasOwnBinding","noGlobals","parentHasBinding","includes","contextVariables","moveBindingTo","info","removeOwnBinding","removeBinding","builtin"],"sources":["../../src/scope/index.ts"],"sourcesContent":["import Renamer from \"./lib/renamer\";\nimport type NodePath from \"../path\";\nimport traverse from \"../index\";\nimport type { TraverseOptions } from \"../index\";\nimport Binding from \"./binding\";\nimport type { BindingKind } from \"./binding\";\nimport globals from \"globals\";\nimport {\n NOT_LOCAL_BINDING,\n callExpression,\n cloneNode,\n getBindingIdentifiers,\n identifier,\n isArrayExpression,\n isBinary,\n isClass,\n isClassBody,\n isClassDeclaration,\n isExportAllDeclaration,\n isExportDefaultDeclaration,\n isExportNamedDeclaration,\n isFunctionDeclaration,\n isIdentifier,\n isImportDeclaration,\n isLiteral,\n isMethod,\n isModuleDeclaration,\n isModuleSpecifier,\n isNullLiteral,\n isObjectExpression,\n isProperty,\n isPureish,\n isRegExpLiteral,\n isSuper,\n isTaggedTemplateExpression,\n isTemplateLiteral,\n isThisExpression,\n isUnaryExpression,\n isVariableDeclaration,\n matchesPattern,\n memberExpression,\n numericLiteral,\n toIdentifier,\n unaryExpression,\n variableDeclaration,\n variableDeclarator,\n isRecordExpression,\n isTupleExpression,\n isObjectProperty,\n isTopicReference,\n isMetaProperty,\n isPrivateName,\n} from \"@babel/types\";\nimport type * as t from \"@babel/types\";\nimportLine truncated
+106
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@@ -0,0 +1,106 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _helperSplitExportDeclaration = require("@babel/helper-split-export-declaration");
var t = require("@babel/types");
var _helperEnvironmentVisitor = require("@babel/helper-environment-visitor");
const renameVisitor = {
ReferencedIdentifier({
node
}, state) {
if (node.name === state.oldName) {
node.name = state.newName;
}
},
Scope(path, state) {
if (!path.scope.bindingIdentifierEquals(state.oldName, state.binding.identifier)) {
path.skip();
if (path.isMethod()) {
(0, _helperEnvironmentVisitor.requeueComputedKeyAndDecorators)(path);
}
}
},
"AssignmentExpression|Declaration|VariableDeclarator"(path, state) {
if (path.isVariableDeclaration()) return;
const ids = path.getOuterBindingIdentifiers();
for (const name in ids) {
if (name === state.oldName) ids[name].name = state.newName;
}
}
};
class Renamer {
constructor(binding, oldName, newName) {
this.newName = newName;
this.oldName = oldName;
this.binding = binding;
}
maybeConvertFromExportDeclaration(parentDeclar) {
const maybeExportDeclar = parentDeclar.parentPath;
if (!maybeExportDeclar.isExportDeclaration()) {
return;
}
if (maybeExportDeclar.isExportDefaultDeclaration()) {
const {
declaration
} = maybeExportDeclar.node;
if (t.isDeclaration(declaration) && !declaration.id) {
return;
}
}
if (maybeExportDeclar.isExportAllDeclaration()) {
return;
}
(0, _helperSplitExportDeclaration.default)(maybeExportDeclar);
}
maybeConvertFromClassFunctionDeclaration(path) {
return path;
}
maybeConvertFromClassFunctionExpression(path) {
return path;
}
rename(block) {
const {
binding,
oldName,
newName
} = this;
const {
scope,
path
} = binding;
const parentDeclar = path.find(path => path.isDeclaration() || path.isFunctionExpression() || path.isClassExpression());
if (parentDeclar) {
const bindingIds = parentDeclar.getOuterBindingIdentifiers();
if (bindingIds[oldName] === binding.identifier) {
this.maybeConvertFromExportDeclaration(parentDeclar);
}
}
const blockToTraverse = block || scope.block;
if ((blockToTraverse == null ? void 0 : blockToTraverse.type) === "SwitchStatement") {
blockToTraverse.cases.forEach(c => {
scope.traverse(c, renameVisitor, this);
});
} else {
scope.traverse(blockToTraverse, renameVisitor, this);
}
if (!block) {
scope.removeOwnBinding(oldName);
scope.bindings[newName] = binding;
this.binding.identifier.name = newName;
}
if (parentDeclar) {
this.maybeConvertFromClassFunctionDeclaration(path);
this.maybeConvertFromClassFunctionExpression(path);
}
}
}
exports.default = Renamer;
//# sourceMappingURL=renamer.js.map
+1
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{"version":3,"names":["renameVisitor","ReferencedIdentifier","node","state","name","oldName","newName","Scope","path","scope","bindingIdentifierEquals","binding","identifier","skip","isMethod","requeueComputedKeyAndDecorators","isVariableDeclaration","ids","getOuterBindingIdentifiers","Renamer","constructor","maybeConvertFromExportDeclaration","parentDeclar","maybeExportDeclar","parentPath","isExportDeclaration","isExportDefaultDeclaration","declaration","t","isDeclaration","id","isExportAllDeclaration","splitExportDeclaration","maybeConvertFromClassFunctionDeclaration","maybeConvertFromClassFunctionExpression","rename","block","find","isFunctionExpression","isClassExpression","bindingIds","blockToTraverse","type","cases","forEach","c","traverse","removeOwnBinding","bindings"],"sources":["../../../src/scope/lib/renamer.ts"],"sourcesContent":["import type Binding from \"../binding\";\nimport splitExportDeclaration from \"@babel/helper-split-export-declaration\";\nimport * as t from \"@babel/types\";\nimport type { NodePath, Visitor } from \"../..\";\nimport { requeueComputedKeyAndDecorators } from \"@babel/helper-environment-visitor\";\n\nconst renameVisitor: Visitor<Renamer> = {\n ReferencedIdentifier({ node }, state) {\n if (node.name === state.oldName) {\n node.name = state.newName;\n }\n },\n\n Scope(path, state) {\n if (\n !path.scope.bindingIdentifierEquals(\n state.oldName,\n state.binding.identifier,\n )\n ) {\n path.skip();\n if (path.isMethod()) {\n requeueComputedKeyAndDecorators(path);\n }\n }\n },\n\n \"AssignmentExpression|Declaration|VariableDeclarator\"(\n path: NodePath<t.AssignmentPattern | t.Declaration | t.VariableDeclarator>,\n state,\n ) {\n if (path.isVariableDeclaration()) return;\n const ids = path.getOuterBindingIdentifiers();\n\n for (const name in ids) {\n if (name === state.oldName) ids[name].name = state.newName;\n }\n },\n};\n\nexport default class Renamer {\n constructor(binding: Binding, oldName: string, newName: string) {\n this.newName = newName;\n this.oldName = oldName;\n this.binding = binding;\n }\n\n declare oldName: string;\n declare newName: string;\n declare binding: Binding;\n\n maybeConvertFromExportDeclaration(parentDeclar: NodePath) {\n const maybeExportDeclar = parentDeclar.parentPath;\n\n if (!maybeExportDeclar.isExportDeclaration()) {\n return;\n }\n\n if (maybeExportDeclar.isExportDefaultDeclaration()) {\n const { declaration } = maybeExportDeclar.node;\n if (t.isDeclaration(declaration) && !declaration.id) {\n return;\n }\n }\n\n if (maybeExportDeclar.isExportAllDeclaration()) {\n return;\n }\n\n splitExportDeclaration(\n maybeExportDeclar as NodePath<\n Exclude<t.ExportDeclaration, t.ExportAllDeclaration>\n >,\n );\n }\n\n maybeConvertFromClassFunctionDeclaration(path: NodePath) {\n return path; // TODO\n\n // // retain the `name` of a class/function declaration\n\n // if (!path.isFunctionDeclaration() && !path.isClassDeclaration()) return;\n // if (this.binding.kind !== \"hoisted\") return;\n\n // path.node.id = identifier(this.oldName);\n // path.node._blockHoist = 3;\n\n // path.replaceWith(\n // variableDeclaration(\"let\", [\n // variableDeclarator(identifier(this.newName), toExpression(path.node)),\n // ]),\n // );\n }\n\n maybeConvertFromClassFunctionExpression(path: NodePath) {\n return path; // TODO\n\n // // retain the `name` of a class/function expression\n\n // if (!path.isFunctionExpression() && !path.isClassExpression()) return;\n // if (this.binding.kind !== \"local\") return;\n\n // path.node.id = identifier(this.oldName);\n\n // this.binding.scope.parent.push({\n // id: identifier(this.newName),\n // });\n\n // path.replaceWith(\n // assignmentExpression(\"=\", identifier(this.newName), path.node),\n // );\n }\n\n rename(block?: t.Pattern | t.Scopable) {\n const { binding, oldName, newName } = this;\n const { scope, path } = binding;\n\n const parentDeclar = path.find(\n path =>\n path.isDeclaration() ||\n path.isFunctionExpression() ||\n path.isClassExpression(),\n );\n if (parentDeclar) {\n const bindingIds = parentDeclar.getOuterBindingIdentifiers();\n if (bindingIds[oldName] === binding.identifier) {\n // When we are renaming an exported identifier, we need to ensure that\n // the exported binding keeps the old name.\n this.maybeConvertFromExportDeclaration(parentDeclar);\n }\n }\n\n const blockToTraverse = block || scope.block;\n if (blockToTraverse?.type === \"SwitchStatement\") {\n // discriminant is not part of current scope, should be skipped.\n blockToTraverse.cases.forEach(c => {\n scope.traverse(c, renameVisitor, this);\n });\n } else {\n scope.trLine truncated
+25
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"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.traverseNode = traverseNode;
var _context = require("./context");
var _t = require("@babel/types");
const {
VISITOR_KEYS
} = _t;
function traverseNode(node, opts, scope, state, path, skipKeys) {
const keys = VISITOR_KEYS[node.type];
if (!keys) return false;
const context = new _context.default(scope, opts, state, path);
for (const key of keys) {
if (skipKeys && skipKeys[key]) continue;
if (context.visit(node, key)) {
return true;
}
}
return false;
}
//# sourceMappingURL=traverse-node.js.map
+1
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{"version":3,"names":["VISITOR_KEYS","traverseNode","node","opts","scope","state","path","skipKeys","keys","type","context","TraversalContext","key","visit"],"sources":["../src/traverse-node.ts"],"sourcesContent":["import TraversalContext from \"./context\";\nimport type { TraverseOptions } from \"./index\";\nimport type NodePath from \"./path\";\nimport type Scope from \"./scope\";\nimport type * as t from \"@babel/types\";\nimport { VISITOR_KEYS } from \"@babel/types\";\n\n/**\n * Traverse the children of given node\n * @param {Node} node\n * @param {TraverseOptions} opts The traverse options used to create a new traversal context\n * @param {scope} scope A traversal scope used to create a new traversal context. When opts.noScope is true, scope should not be provided\n * @param {any} state A user data storage provided as the second callback argument for traversal visitors\n * @param {NodePath} path A NodePath of given node\n * @param {Record<string, boolean>} skipKeys A map from key names to whether that should be skipped during traversal. The skipKeys are applied to every descendants\n * @returns {boolean} Whether the traversal stops early\n\n * @note This function does not visit the given `node`.\n */\nexport function traverseNode(\n node: t.Node,\n opts: TraverseOptions,\n scope?: Scope,\n state?: any,\n path?: NodePath,\n skipKeys?: Record<string, boolean>,\n): boolean {\n const keys = VISITOR_KEYS[node.type];\n if (!keys) return false;\n\n const context = new TraversalContext(scope, opts, state, path);\n for (const key of keys) {\n if (skipKeys && skipKeys[key]) continue;\n if (context.visit(node, key)) {\n return true;\n }\n }\n\n return false;\n}\n"],"mappings":";;;;;;AAAA;AAKA;AAA4C;EAAnCA;AAAY;AAcd,SAASC,YAAY,CAC1BC,IAAY,EACZC,IAAqB,EACrBC,KAAa,EACbC,KAAW,EACXC,IAAe,EACfC,QAAkC,EACzB;EACT,MAAMC,IAAI,GAAGR,YAAY,CAACE,IAAI,CAACO,IAAI,CAAC;EACpC,IAAI,CAACD,IAAI,EAAE,OAAO,KAAK;EAEvB,MAAME,OAAO,GAAG,IAAIC,gBAAgB,CAACP,KAAK,EAAED,IAAI,EAAEE,KAAK,EAAEC,IAAI,CAAC;EAC9D,KAAK,MAAMM,GAAG,IAAIJ,IAAI,EAAE;IACtB,IAAID,QAAQ,IAAIA,QAAQ,CAACK,GAAG,CAAC,EAAE;IAC/B,IAAIF,OAAO,CAACG,KAAK,CAACX,IAAI,EAAEU,GAAG,CAAC,EAAE;MAC5B,OAAO,IAAI;IACb;EACF;EAEA,OAAO,KAAK;AACd"}
+3
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@@ -0,0 +1,3 @@
//# sourceMappingURL=types.js.map
+1
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@@ -0,0 +1 @@
{"version":3,"names":[],"sources":["../src/types.ts"],"sourcesContent":["import type * as t from \"@babel/types\";\nimport type { NodePath } from \"./index\";\nimport type { VirtualTypeAliases } from \"./path/lib/virtual-types\";\n\nexport type Visitor<S = {}> = VisitNodeObject<S, t.Node> & {\n [Type in t.Node[\"type\"]]?: VisitNode<S, Extract<t.Node, { type: Type }>>;\n} & {\n [K in keyof t.Aliases]?: VisitNode<S, t.Aliases[K]>;\n} & {\n [K in keyof VirtualTypeAliases]?: VisitNode<S, VirtualTypeAliases[K]>;\n} & {\n [K in keyof InternalVisitorFlags]?: InternalVisitorFlags[K];\n} & {\n // Babel supports `NodeTypesWithoutComment | NodeTypesWithoutComment | ... ` but it is\n // too complex for TS. So we type it as a general visitor only if the key contains `|`\n // this is good enough for non-visitor traverse options e.g. `noScope`\n [k: `${string}|${string}`]: VisitNode<S, t.Node>;\n};\n\n/** @internal */\ntype InternalVisitorFlags = {\n _exploded?: boolean;\n _verified?: boolean;\n};\n\nexport type VisitNode<S, P extends t.Node> =\n | VisitNodeFunction<S, P>\n | VisitNodeObject<S, P>;\n\nexport type VisitNodeFunction<S, P extends t.Node> = (\n this: S,\n path: NodePath<P>,\n state: S,\n) => void;\n\nexport interface VisitNodeObject<S, P extends t.Node> {\n enter?: VisitNodeFunction<S, P>;\n exit?: VisitNodeFunction<S, P>;\n}\n"],"mappings":""}
+217
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@@ -0,0 +1,217 @@
"use strict";
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.explode = explode;
exports.merge = merge;
exports.verify = verify;
var virtualTypes = require("./path/lib/virtual-types");
var _t = require("@babel/types");
const {
DEPRECATED_KEYS,
FLIPPED_ALIAS_KEYS,
TYPES
} = _t;
function isVirtualType(type) {
return type in virtualTypes;
}
function explode(visitor) {
if (visitor._exploded) return visitor;
visitor._exploded = true;
for (const nodeType of Object.keys(visitor)) {
if (shouldIgnoreKey(nodeType)) continue;
const parts = nodeType.split("|");
if (parts.length === 1) continue;
const fns = visitor[nodeType];
delete visitor[nodeType];
for (const part of parts) {
visitor[part] = fns;
}
}
verify(visitor);
delete visitor.__esModule;
ensureEntranceObjects(visitor);
ensureCallbackArrays(visitor);
for (const nodeType of Object.keys(visitor)) {
if (shouldIgnoreKey(nodeType)) continue;
if (!isVirtualType(nodeType)) continue;
const fns = visitor[nodeType];
for (const type of Object.keys(fns)) {
fns[type] = wrapCheck(nodeType, fns[type]);
}
delete visitor[nodeType];
const types = virtualTypes[nodeType];
if (types !== null) {
for (const type of types) {
if (visitor[type]) {
mergePair(visitor[type], fns);
} else {
visitor[type] = fns;
}
}
} else {
mergePair(visitor, fns);
}
}
for (const nodeType of Object.keys(visitor)) {
if (shouldIgnoreKey(nodeType)) continue;
const fns = visitor[nodeType];
let aliases = FLIPPED_ALIAS_KEYS[nodeType];
const deprecatedKey = DEPRECATED_KEYS[nodeType];
if (deprecatedKey) {
console.trace(`Visitor defined for ${nodeType} but it has been renamed to ${deprecatedKey}`);
aliases = [deprecatedKey];
}
if (!aliases) continue;
delete visitor[nodeType];
for (const alias of aliases) {
const existing = visitor[alias];
if (existing) {
mergePair(existing, fns);
} else {
visitor[alias] = Object.assign({}, fns);
}
}
}
for (const nodeType of Object.keys(visitor)) {
if (shouldIgnoreKey(nodeType)) continue;
ensureCallbackArrays(
visitor[nodeType]);
}
return visitor;
}
function verify(visitor) {
if (visitor._verified) return;
if (typeof visitor === "function") {
throw new Error("You passed `traverse()` a function when it expected a visitor object, " + "are you sure you didn't mean `{ enter: Function }`?");
}
for (const nodeType of Object.keys(visitor)) {
if (nodeType === "enter" || nodeType === "exit") {
validateVisitorMethods(nodeType, visitor[nodeType]);
}
if (shouldIgnoreKey(nodeType)) continue;
if (TYPES.indexOf(nodeType) < 0) {
throw new Error(`You gave us a visitor for the node type ${nodeType} but it's not a valid type`);
}
const visitors = visitor[nodeType];
if (typeof visitors === "object") {
for (const visitorKey of Object.keys(visitors)) {
if (visitorKey === "enter" || visitorKey === "exit") {
validateVisitorMethods(`${nodeType}.${visitorKey}`, visitors[visitorKey]);
} else {
throw new Error("You passed `traverse()` a visitor object with the property " + `${nodeType} that has the invalid property ${visitorKey}`);
}
}
}
}
visitor._verified = true;
}
function validateVisitorMethods(path, val) {
const fns = [].concat(val);
for (const fn of fns) {
if (typeof fn !== "function") {
throw new TypeError(`Non-function found defined in ${path} with type ${typeof fn}`);
}
}
}
function merge(visitors, states = [], wrapper) {
const rootVisitor = {};
for (let i = 0; i < visitors.length; i++) {
const visitor = visitors[i];
const state = states[i];
explode(visitor);
for (const type of Object.keys(visitor)) {
let visitorType = visitor[type];
if (state || wrapper) {
visitorType = wrapWithStateOrWrapper(visitorType, state, wrapper);
}
const nodeVisitor = rootVisitor[type] || (rootVisitor[type] = {});
mergePair(nodeVisitor, visitorType);
}
}
return rootVisitor;
}
function wrapWithStateOrWrapper(oldVisitor, state, wrapper) {
const newVisitor = {};
for (const key of Object.keys(oldVisitor)) {
let fns = oldVisitor[key];
if (!Array.isArray(fns)) continue;
fns = fns.map(function (fn) {
let newFn = fn;
if (state) {
newFn = function (path) {
return fn.call(state, path, state);
};
}
if (wrapper) {
newFn = wrapper(state.key, key, newFn);
}
if (newFn !== fn) {
newFn.toString = () => fn.toString();
}
return newFn;
});
newVisitor[key] = fns;
}
return newVisitor;
}
function ensureEntranceObjects(obj) {
for (const key of Object.keys(obj)) {
if (shouldIgnoreKey(key)) continue;
const fns = obj[key];
if (typeof fns === "function") {
obj[key] = {
enter: fns
};
}
}
}
function ensureCallbackArrays(obj) {
if (obj.enter && !Array.isArray(obj.enter)) obj.enter = [obj.enter];
if (obj.exit && !Array.isArray(obj.exit)) obj.exit = [obj.exit];
}
function wrapCheck(nodeType, fn) {
const newFn = function (path) {
if (path[`is${nodeType}`]()) {
return fn.apply(this, arguments);
}
};
newFn.toString = () => fn.toString();
return newFn;
}
function shouldIgnoreKey(key) {
if (key[0] === "_") return true;
if (key === "enter" || key === "exit" || key === "shouldSkip") return true;
if (key === "denylist" || key === "noScope" || key === "skipKeys" ||
key === "blacklist") {
return true;
}
return false;
}
function mergePair(dest, src) {
for (const key of Object.keys(src)) {
dest[key] = [].concat(dest[key] || [], src[key]);
}
}
//# sourceMappingURL=visitors.js.map
+1
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{"version":3,"names":["DEPRECATED_KEYS","FLIPPED_ALIAS_KEYS","TYPES","isVirtualType","type","virtualTypes","explode","visitor","_exploded","nodeType","Object","keys","shouldIgnoreKey","parts","split","length","fns","part","verify","__esModule","ensureEntranceObjects","ensureCallbackArrays","wrapCheck","types","mergePair","aliases","deprecatedKey","console","trace","alias","existing","_verified","Error","validateVisitorMethods","indexOf","visitors","visitorKey","path","val","concat","fn","TypeError","merge","states","wrapper","rootVisitor","i","state","visitorType","wrapWithStateOrWrapper","nodeVisitor","oldVisitor","newVisitor","key","Array","isArray","map","newFn","call","toString","obj","enter","exit","apply","arguments","dest","src"],"sources":["../src/visitors.ts"],"sourcesContent":["import * as virtualTypes from \"./path/lib/virtual-types\";\nimport { DEPRECATED_KEYS, FLIPPED_ALIAS_KEYS, TYPES } from \"@babel/types\";\nimport type { NodePath, Visitor } from \"./index\";\n\ntype VIRTUAL_TYPES = keyof typeof virtualTypes;\nfunction isVirtualType(type: string): type is VIRTUAL_TYPES {\n return type in virtualTypes;\n}\n\n/**\n * explode() will take a visitor object with all of the various shorthands\n * that we support, and validates & normalizes it into a common format, ready\n * to be used in traversal\n *\n * The various shorthands are:\n * * `Identifier() { ... }` -> `Identifier: { enter() { ... } }`\n * * `\"Identifier|NumericLiteral\": { ... }` -> `Identifier: { ... }, NumericLiteral: { ... }`\n * * Aliases in `@babel/types`: e.g. `Property: { ... }` -> `ObjectProperty: { ... }, ClassProperty: { ... }`\n *\n * Other normalizations are:\n * * Visitors of virtual types are wrapped, so that they are only visited when\n * their dynamic check passes\n * * `enter` and `exit` functions are wrapped in arrays, to ease merging of\n * visitors\n */\nexport function explode(visitor: Visitor) {\n if (visitor._exploded) return visitor;\n visitor._exploded = true;\n\n // normalise pipes\n for (const nodeType of Object.keys(visitor) as (keyof Visitor)[]) {\n if (shouldIgnoreKey(nodeType)) continue;\n\n const parts: Array<string> = nodeType.split(\"|\");\n if (parts.length === 1) continue;\n\n const fns = visitor[nodeType];\n delete visitor[nodeType];\n\n for (const part of parts) {\n // @ts-expect-error part will be verified by `verify` later\n visitor[part] = fns;\n }\n }\n\n // verify data structure\n verify(visitor);\n\n // make sure there's no __esModule type since this is because we're using loose mode\n // and it sets __esModule to be enumerable on all modules :(\n // @ts-expect-error ESModule interop\n delete visitor.__esModule;\n\n // ensure visitors are objects\n ensureEntranceObjects(visitor);\n\n // ensure enter/exit callbacks are arrays\n ensureCallbackArrays(visitor);\n\n // add type wrappers\n for (const nodeType of Object.keys(visitor)) {\n if (shouldIgnoreKey(nodeType)) continue;\n\n if (!isVirtualType(nodeType)) continue;\n\n // wrap all the functions\n const fns = visitor[nodeType];\n for (const type of Object.keys(fns)) {\n // @ts-expect-error manipulating visitors\n fns[type] = wrapCheck(nodeType, fns[type]);\n }\n\n // clear it from the visitor\n delete visitor[nodeType];\n\n const types = virtualTypes[nodeType];\n if (types !== null) {\n for (const type of types) {\n // merge the visitor if necessary or just put it back in\n if (visitor[type]) {\n mergePair(visitor[type], fns);\n } else {\n // @ts-expect-error Expression produces too complex union\n visitor[type] = fns;\n }\n }\n } else {\n mergePair(visitor, fns);\n }\n }\n\n // add aliases\n for (const nodeType of Object.keys(visitor) as (keyof Visitor)[]) {\n if (shouldIgnoreKey(nodeType)) continue;\n\n const fns = visitor[nodeType];\n\n let aliases = FLIPPED_ALIAS_KEYS[nodeType];\n\n const deprecatedKey = DEPRECATED_KEYS[nodeType];\n if (deprecatedKey) {\n console.trace(\n `Visitor defined for ${nodeType} but it has been renamed to ${deprecatedKey}`,\n );\n aliases = [deprecatedKey];\n }\n\n if (!aliases) continue;\n\n // clear it from the visitor\n delete visitor[nodeType];\n\n for (const alias of aliases) {\n const existing = visitor[alias];\n if (existing) {\n mergePair(existing, fns);\n } else {\n // @ts-expect-error Expression produces a union type that is too complex to represent.\n visitor[alias] = { ...fns };\n }\n }\n }\n\n for (const nodeType of Object.keys(visitor)) {\n if (shouldIgnoreKey(nodeType)) continue;\n\n ensureCallbackArrays(\n // @ts-expect-error nodeType must present in visitor after previous validations\n visitor[nodeType],\n );\n }\n\n return visitor;\n}\n\nexport function verify(visitor: Visitor) {\n if (visitor._verified) retLine truncated