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265 lines
6.5 KiB
265 lines
6.5 KiB
"use strict"; |
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exports.__esModule = true; |
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var _keys = require("babel-runtime/core-js/object/keys"); |
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var _keys2 = _interopRequireDefault(_keys); |
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var _typeof2 = require("babel-runtime/helpers/typeof"); |
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var _typeof3 = _interopRequireDefault(_typeof2); |
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var _getIterator2 = require("babel-runtime/core-js/get-iterator"); |
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var _getIterator3 = _interopRequireDefault(_getIterator2); |
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exports.isBinding = isBinding; |
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exports.isReferenced = isReferenced; |
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exports.isValidIdentifier = isValidIdentifier; |
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exports.isLet = isLet; |
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exports.isBlockScoped = isBlockScoped; |
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exports.isVar = isVar; |
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exports.isSpecifierDefault = isSpecifierDefault; |
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exports.isScope = isScope; |
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exports.isImmutable = isImmutable; |
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exports.isNodesEquivalent = isNodesEquivalent; |
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var _retrievers = require("./retrievers"); |
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var _esutils = require("esutils"); |
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var _esutils2 = _interopRequireDefault(_esutils); |
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var _index = require("./index"); |
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var t = _interopRequireWildcard(_index); |
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var _constants = require("./constants"); |
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) newObj[key] = obj[key]; } } newObj.default = obj; return newObj; } } |
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } |
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function isBinding(node, parent) { |
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var keys = _retrievers.getBindingIdentifiers.keys[parent.type]; |
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if (keys) { |
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for (var i = 0; i < keys.length; i++) { |
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var key = keys[i]; |
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var val = parent[key]; |
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if (Array.isArray(val)) { |
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if (val.indexOf(node) >= 0) return true; |
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} else { |
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if (val === node) return true; |
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} |
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} |
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} |
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return false; |
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} |
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function isReferenced(node, parent) { |
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switch (parent.type) { |
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case "BindExpression": |
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return parent.object === node || parent.callee === node; |
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case "MemberExpression": |
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case "JSXMemberExpression": |
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if (parent.property === node && parent.computed) { |
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return true; |
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} else if (parent.object === node) { |
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return true; |
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} else { |
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return false; |
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} |
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case "MetaProperty": |
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return false; |
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case "ObjectProperty": |
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if (parent.key === node) { |
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return parent.computed; |
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} |
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case "VariableDeclarator": |
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return parent.id !== node; |
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case "ArrowFunctionExpression": |
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case "FunctionDeclaration": |
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case "FunctionExpression": |
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for (var _iterator = parent.params, _isArray = Array.isArray(_iterator), _i = 0, _iterator = _isArray ? _iterator : (0, _getIterator3.default)(_iterator);;) { |
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var _ref; |
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if (_isArray) { |
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if (_i >= _iterator.length) break; |
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_ref = _iterator[_i++]; |
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} else { |
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_i = _iterator.next(); |
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if (_i.done) break; |
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_ref = _i.value; |
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} |
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var param = _ref; |
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if (param === node) return false; |
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} |
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return parent.id !== node; |
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case "ExportSpecifier": |
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if (parent.source) { |
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return false; |
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} else { |
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return parent.local === node; |
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} |
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case "ExportNamespaceSpecifier": |
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case "ExportDefaultSpecifier": |
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return false; |
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case "JSXAttribute": |
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return parent.name !== node; |
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case "ClassProperty": |
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if (parent.key === node) { |
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return parent.computed; |
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} else { |
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return parent.value === node; |
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} |
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case "ImportDefaultSpecifier": |
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case "ImportNamespaceSpecifier": |
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case "ImportSpecifier": |
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return false; |
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case "ClassDeclaration": |
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case "ClassExpression": |
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return parent.id !== node; |
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case "ClassMethod": |
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case "ObjectMethod": |
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return parent.key === node && parent.computed; |
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case "LabeledStatement": |
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return false; |
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case "CatchClause": |
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return parent.param !== node; |
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case "RestElement": |
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return false; |
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case "AssignmentExpression": |
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return parent.right === node; |
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case "AssignmentPattern": |
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return parent.right === node; |
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case "ObjectPattern": |
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case "ArrayPattern": |
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return false; |
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} |
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return true; |
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} |
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function isValidIdentifier(name) { |
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if (typeof name !== "string" || _esutils2.default.keyword.isReservedWordES6(name, true)) { |
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return false; |
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} else if (name === "await") { |
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return false; |
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} else { |
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return _esutils2.default.keyword.isIdentifierNameES6(name); |
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} |
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} |
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function isLet(node) { |
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return t.isVariableDeclaration(node) && (node.kind !== "var" || node[_constants.BLOCK_SCOPED_SYMBOL]); |
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} |
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function isBlockScoped(node) { |
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return t.isFunctionDeclaration(node) || t.isClassDeclaration(node) || t.isLet(node); |
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} |
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function isVar(node) { |
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return t.isVariableDeclaration(node, { kind: "var" }) && !node[_constants.BLOCK_SCOPED_SYMBOL]; |
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} |
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function isSpecifierDefault(specifier) { |
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return t.isImportDefaultSpecifier(specifier) || t.isIdentifier(specifier.imported || specifier.exported, { name: "default" }); |
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} |
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function isScope(node, parent) { |
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if (t.isBlockStatement(node) && t.isFunction(parent, { body: node })) { |
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return false; |
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} |
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return t.isScopable(node); |
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} |
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function isImmutable(node) { |
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if (t.isType(node.type, "Immutable")) return true; |
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if (t.isIdentifier(node)) { |
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if (node.name === "undefined") { |
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return true; |
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} else { |
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return false; |
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} |
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} |
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return false; |
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} |
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function isNodesEquivalent(a, b) { |
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if ((typeof a === "undefined" ? "undefined" : (0, _typeof3.default)(a)) !== "object" || (typeof a === "undefined" ? "undefined" : (0, _typeof3.default)(a)) !== "object" || a == null || b == null) { |
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return a === b; |
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} |
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if (a.type !== b.type) { |
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return false; |
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} |
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var fields = (0, _keys2.default)(t.NODE_FIELDS[a.type] || a.type); |
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for (var _iterator2 = fields, _isArray2 = Array.isArray(_iterator2), _i2 = 0, _iterator2 = _isArray2 ? _iterator2 : (0, _getIterator3.default)(_iterator2);;) { |
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var _ref2; |
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if (_isArray2) { |
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if (_i2 >= _iterator2.length) break; |
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_ref2 = _iterator2[_i2++]; |
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} else { |
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_i2 = _iterator2.next(); |
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if (_i2.done) break; |
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_ref2 = _i2.value; |
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} |
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var field = _ref2; |
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if ((0, _typeof3.default)(a[field]) !== (0, _typeof3.default)(b[field])) { |
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return false; |
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} |
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if (Array.isArray(a[field])) { |
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if (!Array.isArray(b[field])) { |
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return false; |
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} |
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if (a[field].length !== b[field].length) { |
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return false; |
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} |
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for (var i = 0; i < a[field].length; i++) { |
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if (!isNodesEquivalent(a[field][i], b[field][i])) { |
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return false; |
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} |
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} |
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continue; |
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} |
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if (!isNodesEquivalent(a[field], b[field])) { |
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return false; |
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} |
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} |
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return true; |
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} |