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authorruki <waruqi@gmail.com>2018-11-08 00:43:05 +0800
committerruki <waruqi@gmail.com>2018-11-07 22:18:30 +0800
commit89e95b3f143682ed9a006991bacf45c9dcba4818 (patch)
tree4f44cf41b828577d583890bdd5a1c31e8491a6ba /node_modules/@babel/plugin-transform-destructuring/lib/index.js
parentaa7f0199255277949790b41c56e8ec97dd4f0da4 (diff)
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Diffstat (limited to 'node_modules/@babel/plugin-transform-destructuring/lib/index.js')
-rw-r--r--node_modules/@babel/plugin-transform-destructuring/lib/index.js514
1 files changed, 0 insertions, 514 deletions
diff --git a/node_modules/@babel/plugin-transform-destructuring/lib/index.js b/node_modules/@babel/plugin-transform-destructuring/lib/index.js
deleted file mode 100644
index 11075331..00000000
--- a/node_modules/@babel/plugin-transform-destructuring/lib/index.js
+++ /dev/null
@@ -1,514 +0,0 @@
-"use strict";
-
-Object.defineProperty(exports, "__esModule", {
- value: true
-});
-exports.default = void 0;
-
-function _helperPluginUtils() {
- const data = require("@babel/helper-plugin-utils");
-
- _helperPluginUtils = function _helperPluginUtils() {
- return data;
- };
-
- return data;
-}
-
-function _core() {
- const data = require("@babel/core");
-
- _core = function _core() {
- return data;
- };
-
- return data;
-}
-
-var _default = (0, _helperPluginUtils().declare)((api, options) => {
- api.assertVersion(7);
- const _options$loose = options.loose,
- loose = _options$loose === void 0 ? false : _options$loose,
- _options$useBuiltIns = options.useBuiltIns,
- useBuiltIns = _options$useBuiltIns === void 0 ? false : _options$useBuiltIns;
-
- if (typeof loose !== "boolean") {
- throw new Error(`.loose must be a boolean or undefined`);
- }
-
- const arrayOnlySpread = loose;
-
- function getExtendsHelper(file) {
- return useBuiltIns ? _core().types.memberExpression(_core().types.identifier("Object"), _core().types.identifier("assign")) : file.addHelper("extends");
- }
-
- function variableDeclarationHasPattern(node) {
- var _arr = node.declarations;
-
- for (var _i = 0; _i < _arr.length; _i++) {
- const declar = _arr[_i];
-
- if (_core().types.isPattern(declar.id)) {
- return true;
- }
- }
-
- return false;
- }
-
- function hasRest(pattern) {
- var _arr2 = pattern.elements;
-
- for (var _i2 = 0; _i2 < _arr2.length; _i2++) {
- const elem = _arr2[_i2];
-
- if (_core().types.isRestElement(elem)) {
- return true;
- }
- }
-
- return false;
- }
-
- const arrayUnpackVisitor = {
- ReferencedIdentifier(path, state) {
- if (state.bindings[path.node.name]) {
- state.deopt = true;
- path.stop();
- }
- }
-
- };
-
- class DestructuringTransformer {
- constructor(opts) {
- this.blockHoist = opts.blockHoist;
- this.operator = opts.operator;
- this.arrays = {};
- this.nodes = opts.nodes || [];
- this.scope = opts.scope;
- this.kind = opts.kind;
- this.arrayOnlySpread = opts.arrayOnlySpread;
- this.addHelper = opts.addHelper;
- }
-
- buildVariableAssignment(id, init) {
- let op = this.operator;
- if (_core().types.isMemberExpression(id)) op = "=";
- let node;
-
- if (op) {
- node = _core().types.expressionStatement(_core().types.assignmentExpression(op, id, _core().types.cloneNode(init)));
- } else {
- node = _core().types.variableDeclaration(this.kind, [_core().types.variableDeclarator(id, _core().types.cloneNode(init))]);
- }
-
- node._blockHoist = this.blockHoist;
- return node;
- }
-
- buildVariableDeclaration(id, init) {
- const declar = _core().types.variableDeclaration("var", [_core().types.variableDeclarator(_core().types.cloneNode(id), _core().types.cloneNode(init))]);
-
- declar._blockHoist = this.blockHoist;
- return declar;
- }
-
- push(id, _init) {
- const init = _core().types.cloneNode(_init);
-
- if (_core().types.isObjectPattern(id)) {
- this.pushObjectPattern(id, init);
- } else if (_core().types.isArrayPattern(id)) {
- this.pushArrayPattern(id, init);
- } else if (_core().types.isAssignmentPattern(id)) {
- this.pushAssignmentPattern(id, init);
- } else {
- this.nodes.push(this.buildVariableAssignment(id, init));
- }
- }
-
- toArray(node, count) {
- if (this.arrayOnlySpread || _core().types.isIdentifier(node) && this.arrays[node.name]) {
- return node;
- } else {
- return this.scope.toArray(node, count);
- }
- }
-
- pushAssignmentPattern({
- left,
- right
- }, valueRef) {
- const tempId = this.scope.generateUidIdentifierBasedOnNode(valueRef);
- this.nodes.push(this.buildVariableDeclaration(tempId, valueRef));
-
- const tempConditional = _core().types.conditionalExpression(_core().types.binaryExpression("===", _core().types.cloneNode(tempId), this.scope.buildUndefinedNode()), right, _core().types.cloneNode(tempId));
-
- if (_core().types.isPattern(left)) {
- let patternId;
- let node;
-
- if (this.kind === "const") {
- patternId = this.scope.generateUidIdentifier(tempId.name);
- node = this.buildVariableDeclaration(patternId, tempConditional);
- } else {
- patternId = tempId;
- node = _core().types.expressionStatement(_core().types.assignmentExpression("=", _core().types.cloneNode(tempId), tempConditional));
- }
-
- this.nodes.push(node);
- this.push(left, patternId);
- } else {
- this.nodes.push(this.buildVariableAssignment(left, tempConditional));
- }
- }
-
- pushObjectRest(pattern, objRef, spreadProp, spreadPropIndex) {
- let keys = [];
-
- for (let i = 0; i < pattern.properties.length; i++) {
- const prop = pattern.properties[i];
- if (i >= spreadPropIndex) break;
- if (_core().types.isRestElement(prop)) continue;
- let key = prop.key;
-
- if (_core().types.isIdentifier(key) && !prop.computed) {
- key = _core().types.stringLiteral(prop.key.name);
- }
-
- keys.push(_core().types.cloneNode(key));
- }
-
- let value;
-
- if (keys.length === 0) {
- value = _core().types.callExpression(getExtendsHelper(this), [_core().types.objectExpression([]), _core().types.cloneNode(objRef)]);
- } else {
- keys = _core().types.arrayExpression(keys);
- value = _core().types.callExpression(this.addHelper("objectWithoutProperties"), [_core().types.cloneNode(objRef), keys]);
- }
-
- this.nodes.push(this.buildVariableAssignment(spreadProp.argument, value));
- }
-
- pushObjectProperty(prop, propRef) {
- if (_core().types.isLiteral(prop.key)) prop.computed = true;
- const pattern = prop.value;
-
- const objRef = _core().types.memberExpression(_core().types.cloneNode(propRef), prop.key, prop.computed);
-
- if (_core().types.isPattern(pattern)) {
- this.push(pattern, objRef);
- } else {
- this.nodes.push(this.buildVariableAssignment(pattern, objRef));
- }
- }
-
- pushObjectPattern(pattern, objRef) {
- if (!pattern.properties.length) {
- this.nodes.push(_core().types.expressionStatement(_core().types.callExpression(this.addHelper("objectDestructuringEmpty"), [objRef])));
- }
-
- if (pattern.properties.length > 1 && !this.scope.isStatic(objRef)) {
- const temp = this.scope.generateUidIdentifierBasedOnNode(objRef);
- this.nodes.push(this.buildVariableDeclaration(temp, objRef));
- objRef = temp;
- }
-
- for (let i = 0; i < pattern.properties.length; i++) {
- const prop = pattern.properties[i];
-
- if (_core().types.isRestElement(prop)) {
- this.pushObjectRest(pattern, objRef, prop, i);
- } else {
- this.pushObjectProperty(prop, objRef);
- }
- }
- }
-
- canUnpackArrayPattern(pattern, arr) {
- if (!_core().types.isArrayExpression(arr)) return false;
- if (pattern.elements.length > arr.elements.length) return;
-
- if (pattern.elements.length < arr.elements.length && !hasRest(pattern)) {
- return false;
- }
-
- var _arr3 = pattern.elements;
-
- for (var _i3 = 0; _i3 < _arr3.length; _i3++) {
- const elem = _arr3[_i3];
- if (!elem) return false;
- if (_core().types.isMemberExpression(elem)) return false;
- }
-
- var _arr4 = arr.elements;
-
- for (var _i4 = 0; _i4 < _arr4.length; _i4++) {
- const elem = _arr4[_i4];
- if (_core().types.isSpreadElement(elem)) return false;
- if (_core().types.isCallExpression(elem)) return false;
- if (_core().types.isMemberExpression(elem)) return false;
- }
-
- const bindings = _core().types.getBindingIdentifiers(pattern);
-
- const state = {
- deopt: false,
- bindings
- };
- this.scope.traverse(arr, arrayUnpackVisitor, state);
- return !state.deopt;
- }
-
- pushUnpackedArrayPattern(pattern, arr) {
- for (let i = 0; i < pattern.elements.length; i++) {
- const elem = pattern.elements[i];
-
- if (_core().types.isRestElement(elem)) {
- this.push(elem.argument, _core().types.arrayExpression(arr.elements.slice(i)));
- } else {
- this.push(elem, arr.elements[i]);
- }
- }
- }
-
- pushArrayPattern(pattern, arrayRef) {
- if (!pattern.elements) return;
-
- if (this.canUnpackArrayPattern(pattern, arrayRef)) {
- return this.pushUnpackedArrayPattern(pattern, arrayRef);
- }
-
- const count = !hasRest(pattern) && pattern.elements.length;
- const toArray = this.toArray(arrayRef, count);
-
- if (_core().types.isIdentifier(toArray)) {
- arrayRef = toArray;
- } else {
- arrayRef = this.scope.generateUidIdentifierBasedOnNode(arrayRef);
- this.arrays[arrayRef.name] = true;
- this.nodes.push(this.buildVariableDeclaration(arrayRef, toArray));
- }
-
- for (let i = 0; i < pattern.elements.length; i++) {
- let elem = pattern.elements[i];
- if (!elem) continue;
- let elemRef;
-
- if (_core().types.isRestElement(elem)) {
- elemRef = this.toArray(arrayRef);
- elemRef = _core().types.callExpression(_core().types.memberExpression(elemRef, _core().types.identifier("slice")), [_core().types.numericLiteral(i)]);
- elem = elem.argument;
- } else {
- elemRef = _core().types.memberExpression(arrayRef, _core().types.numericLiteral(i), true);
- }
-
- this.push(elem, elemRef);
- }
- }
-
- init(pattern, ref) {
- if (!_core().types.isArrayExpression(ref) && !_core().types.isMemberExpression(ref)) {
- const memo = this.scope.maybeGenerateMemoised(ref, true);
-
- if (memo) {
- this.nodes.push(this.buildVariableDeclaration(memo, _core().types.cloneNode(ref)));
- ref = memo;
- }
- }
-
- this.push(pattern, ref);
- return this.nodes;
- }
-
- }
-
- return {
- visitor: {
- ExportNamedDeclaration(path) {
- const declaration = path.get("declaration");
- if (!declaration.isVariableDeclaration()) return;
- if (!variableDeclarationHasPattern(declaration.node)) return;
- const specifiers = [];
-
- for (const name in path.getOuterBindingIdentifiers(path)) {
- specifiers.push(_core().types.exportSpecifier(_core().types.identifier(name), _core().types.identifier(name)));
- }
-
- path.replaceWith(declaration.node);
- path.insertAfter(_core().types.exportNamedDeclaration(null, specifiers));
- },
-
- ForXStatement(path) {
- const node = path.node,
- scope = path.scope;
- const left = node.left;
-
- if (_core().types.isPattern(left)) {
- const temp = scope.generateUidIdentifier("ref");
- node.left = _core().types.variableDeclaration("var", [_core().types.variableDeclarator(temp)]);
- path.ensureBlock();
- node.body.body.unshift(_core().types.variableDeclaration("var", [_core().types.variableDeclarator(left, temp)]));
- return;
- }
-
- if (!_core().types.isVariableDeclaration(left)) return;
- const pattern = left.declarations[0].id;
- if (!_core().types.isPattern(pattern)) return;
- const key = scope.generateUidIdentifier("ref");
- node.left = _core().types.variableDeclaration(left.kind, [_core().types.variableDeclarator(key, null)]);
- const nodes = [];
- const destructuring = new DestructuringTransformer({
- kind: left.kind,
- scope: scope,
- nodes: nodes,
- arrayOnlySpread,
- addHelper: name => this.addHelper(name)
- });
- destructuring.init(pattern, key);
- path.ensureBlock();
- const block = node.body;
- block.body = nodes.concat(block.body);
- },
-
- CatchClause({
- node,
- scope
- }) {
- const pattern = node.param;
- if (!_core().types.isPattern(pattern)) return;
- const ref = scope.generateUidIdentifier("ref");
- node.param = ref;
- const nodes = [];
- const destructuring = new DestructuringTransformer({
- kind: "let",
- scope: scope,
- nodes: nodes,
- arrayOnlySpread,
- addHelper: name => this.addHelper(name)
- });
- destructuring.init(pattern, ref);
- node.body.body = nodes.concat(node.body.body);
- },
-
- AssignmentExpression(path) {
- const node = path.node,
- scope = path.scope;
- if (!_core().types.isPattern(node.left)) return;
- const nodes = [];
- const destructuring = new DestructuringTransformer({
- operator: node.operator,
- scope: scope,
- nodes: nodes,
- arrayOnlySpread,
- addHelper: name => this.addHelper(name)
- });
- let ref;
-
- if (path.isCompletionRecord() || !path.parentPath.isExpressionStatement()) {
- ref = scope.generateUidIdentifierBasedOnNode(node.right, "ref");
- nodes.push(_core().types.variableDeclaration("var", [_core().types.variableDeclarator(ref, node.right)]));
-
- if (_core().types.isArrayExpression(node.right)) {
- destructuring.arrays[ref.name] = true;
- }
- }
-
- destructuring.init(node.left, ref || node.right);
-
- if (ref) {
- nodes.push(_core().types.expressionStatement(_core().types.cloneNode(ref)));
- }
-
- path.replaceWithMultiple(nodes);
- },
-
- VariableDeclaration(path) {
- const node = path.node,
- scope = path.scope,
- parent = path.parent;
- if (_core().types.isForXStatement(parent)) return;
- if (!parent || !path.container) return;
- if (!variableDeclarationHasPattern(node)) return;
- const nodeKind = node.kind;
- const nodes = [];
- let declar;
-
- for (let i = 0; i < node.declarations.length; i++) {
- declar = node.declarations[i];
- const patternId = declar.init;
- const pattern = declar.id;
- const destructuring = new DestructuringTransformer({
- blockHoist: node._blockHoist,
- nodes: nodes,
- scope: scope,
- kind: node.kind,
- arrayOnlySpread,
- addHelper: name => this.addHelper(name)
- });
-
- if (_core().types.isPattern(pattern)) {
- destructuring.init(pattern, patternId);
-
- if (+i !== node.declarations.length - 1) {
- _core().types.inherits(nodes[nodes.length - 1], declar);
- }
- } else {
- nodes.push(_core().types.inherits(destructuring.buildVariableAssignment(declar.id, _core().types.cloneNode(declar.init)), declar));
- }
- }
-
- let tail = null;
- const nodesOut = [];
-
- for (var _i5 = 0; _i5 < nodes.length; _i5++) {
- const node = nodes[_i5];
-
- if (tail !== null && _core().types.isVariableDeclaration(node)) {
- tail.declarations.push(...node.declarations);
- } else {
- node.kind = nodeKind;
- nodesOut.push(node);
- tail = _core().types.isVariableDeclaration(node) ? node : null;
- }
- }
-
- for (var _i6 = 0; _i6 < nodesOut.length; _i6++) {
- const nodeOut = nodesOut[_i6];
- if (!nodeOut.declarations) continue;
-
- for (var _iterator = nodeOut.declarations, _isArray = Array.isArray(_iterator), _i7 = 0, _iterator = _isArray ? _iterator : _iterator[Symbol.iterator]();;) {
- var _ref;
-
- if (_isArray) {
- if (_i7 >= _iterator.length) break;
- _ref = _iterator[_i7++];
- } else {
- _i7 = _iterator.next();
- if (_i7.done) break;
- _ref = _i7.value;
- }
-
- const declaration = _ref;
- const name = declaration.id.name;
-
- if (scope.bindings[name]) {
- scope.bindings[name].kind = nodeOut.kind;
- }
- }
- }
-
- if (nodesOut.length === 1) {
- path.replaceWith(nodesOut[0]);
- } else {
- path.replaceWithMultiple(nodesOut);
- }
- }
-
- }
- };
-});
-
-exports.default = _default; \ No newline at end of file