109 lines
No EOL
13 KiB
JavaScript
109 lines
No EOL
13 KiB
JavaScript
'use strict';
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var _ExportMap = require('../ExportMap');var _ExportMap2 = _interopRequireDefault(_ExportMap);
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var _importDeclaration = require('../importDeclaration');var _importDeclaration2 = _interopRequireDefault(_importDeclaration);
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var _docsUrl = require('../docsUrl');var _docsUrl2 = _interopRequireDefault(_docsUrl);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { 'default': obj };}
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//------------------------------------------------------------------------------
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// Rule Definition
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//------------------------------------------------------------------------------
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module.exports = {
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meta: {
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type: 'suggestion',
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docs: {
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category: 'Helpful warnings',
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description: 'Forbid use of exported name as property of default export.',
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url: (0, _docsUrl2['default'])('no-named-as-default-member') },
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schema: [] },
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create: function () {function create(context) {
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var fileImports = new Map();
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var allPropertyLookups = new Map();
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function handleImportDefault(node) {
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var declaration = (0, _importDeclaration2['default'])(context);
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var exportMap = _ExportMap2['default'].get(declaration.source.value, context);
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if (exportMap == null) return;
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if (exportMap.errors.length) {
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exportMap.reportErrors(context, declaration);
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return;
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}
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fileImports.set(node.local.name, {
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exportMap: exportMap,
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sourcePath: declaration.source.value });
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}
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function storePropertyLookup(objectName, propName, node) {
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var lookups = allPropertyLookups.get(objectName) || [];
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lookups.push({ node: node, propName: propName });
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allPropertyLookups.set(objectName, lookups);
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}
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function handlePropLookup(node) {
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var objectName = node.object.name;
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var propName = node.property.name;
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storePropertyLookup(objectName, propName, node);
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}
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function handleDestructuringAssignment(node) {
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var isDestructure =
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node.id.type === 'ObjectPattern' &&
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node.init != null &&
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node.init.type === 'Identifier';
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if (!isDestructure) return;
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var objectName = node.init.name;var _iteratorNormalCompletion = true;var _didIteratorError = false;var _iteratorError = undefined;try {
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for (var _iterator = node.id.properties[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {var _ref = _step.value;var key = _ref.key;
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if (key == null) continue; // true for rest properties
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storePropertyLookup(objectName, key.name, key);
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}} catch (err) {_didIteratorError = true;_iteratorError = err;} finally {try {if (!_iteratorNormalCompletion && _iterator['return']) {_iterator['return']();}} finally {if (_didIteratorError) {throw _iteratorError;}}}
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}
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function handleProgramExit() {
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allPropertyLookups.forEach(function (lookups, objectName) {
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var fileImport = fileImports.get(objectName);
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if (fileImport == null) return;var _iteratorNormalCompletion2 = true;var _didIteratorError2 = false;var _iteratorError2 = undefined;try {
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for (var _iterator2 = lookups[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {var _ref2 = _step2.value;var propName = _ref2.propName,node = _ref2.node;
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// the default import can have a "default" property
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if (propName === 'default') continue;
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if (!fileImport.exportMap.namespace.has(propName)) continue;
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context.report({
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node: node,
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message:
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'Caution: `' + String(objectName) + '` also has a named export ' + ('`' + String(
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propName) + '`. Check if you meant to write ') + ('`import {' + String(
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propName) + '} from \'' + String(fileImport.sourcePath) + '\'` ') +
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'instead.' });
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}} catch (err) {_didIteratorError2 = true;_iteratorError2 = err;} finally {try {if (!_iteratorNormalCompletion2 && _iterator2['return']) {_iterator2['return']();}} finally {if (_didIteratorError2) {throw _iteratorError2;}}}
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});
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}
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return {
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'ImportDefaultSpecifier': handleImportDefault,
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'MemberExpression': handlePropLookup,
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'VariableDeclarator': handleDestructuringAssignment,
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'Program:exit': handleProgramExit };
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}return create;}() }; /**
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* @fileoverview Rule to warn about potentially confused use of name exports
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* @author Desmond Brand
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* @copyright 2016 Desmond Brand. All rights reserved.
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* See LICENSE in root directory for full license.
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*/
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All rights reserved.\n * See LICENSE in root directory for full license.\n */\nimport Exports from '../ExportMap';\nimport importDeclaration from '../importDeclaration';\nimport docsUrl from '../docsUrl';\n\n//------------------------------------------------------------------------------\n// Rule Definition\n//------------------------------------------------------------------------------\n\nmodule.exports = {\n  meta: {\n    type: 'suggestion',\n    docs: {\n      category: 'Helpful warnings',\n      description: 'Forbid use of exported name as property of default export.',\n      url: docsUrl('no-named-as-default-member'),\n    },\n    schema: [],\n  },\n\n  create(context) {\n\n    const fileImports = new Map();\n    const allPropertyLookups = new Map();\n\n    function handleImportDefault(node) {\n      const declaration = importDeclaration(context);\n      const exportMap = Exports.get(declaration.source.value, context);\n      if (exportMap == null) return;\n\n      if (exportMap.errors.length) {\n        exportMap.reportErrors(context, declaration);\n        return;\n      }\n\n      fileImports.set(node.local.name, {\n        exportMap,\n        sourcePath: declaration.source.value,\n      });\n    }\n\n    function storePropertyLookup(objectName, propName, node) {\n      const lookups = allPropertyLookups.get(objectName) || [];\n      lookups.push({ node, propName });\n      allPropertyLookups.set(objectName, lookups);\n    }\n\n    function handlePropLookup(node) {\n      const objectName = node.object.name;\n      const propName = node.property.name;\n      storePropertyLookup(objectName, propName, node);\n    }\n\n    function handleDestructuringAssignment(node) {\n      const isDestructure = (\n        node.id.type === 'ObjectPattern' &&\n        node.init != null &&\n        node.init.type === 'Identifier'\n      );\n      if (!isDestructure) return;\n\n      const objectName = node.init.name;\n      for (const { key } of node.id.properties) {\n        if (key == null) continue;  // true for rest properties\n        storePropertyLookup(objectName, key.name, key);\n      }\n    }\n\n    function handleProgramExit() {\n      allPropertyLookups.forEach((lookups, objectName) => {\n        const fileImport = fileImports.get(objectName);\n        if (fileImport == null) return;\n\n        for (const { propName, node } of lookups) {\n          // the default import can have a \"default\" property\n          if (propName === 'default') continue;\n          if (!fileImport.exportMap.namespace.has(propName)) continue;\n\n          context.report({\n            node,\n            message: (\n              `Caution: \\`${objectName}\\` also has a named export ` +\n              `\\`${propName}\\`. Check if you meant to write ` +\n              `\\`import {${propName}} from '${fileImport.sourcePath}'\\` ` +\n              'instead.'\n            ),\n          });\n        }\n      });\n    }\n\n    return {\n      'ImportDefaultSpecifier': handleImportDefault,\n      'MemberExpression': handlePropLookup,\n      'VariableDeclarator': handleDestructuringAssignment,\n      'Program:exit': handleProgramExit,\n    };\n  },\n};\n"]}
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