| 'use strict'; |
| |
| var _ExportMap = require('../ExportMap'); |
| |
| var _ExportMap2 = _interopRequireDefault(_ExportMap); |
| |
| var _importDeclaration = require('../importDeclaration'); |
| |
| var _importDeclaration2 = _interopRequireDefault(_importDeclaration); |
| |
| var _declaredScope = require('eslint-module-utils/declaredScope'); |
| |
| var _declaredScope2 = _interopRequireDefault(_declaredScope); |
| |
| function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; } |
| |
| module.exports = { |
| meta: { |
| schema: [{ |
| 'type': 'object', |
| 'properties': { |
| 'allowComputed': { |
| 'description': 'If `false`, will report computed (and thus, un-lintable) references ' + 'to namespace members.', |
| 'type': 'boolean', |
| 'default': false |
| } |
| }, |
| 'additionalProperties': false |
| }] |
| }, |
| |
| create: function namespaceRule(context) { |
| |
| // read options |
| var _ref = context.options[0] || {}, |
| _ref$allowComputed = _ref.allowComputed; |
| |
| const allowComputed = _ref$allowComputed === undefined ? false : _ref$allowComputed; |
| |
| |
| const namespaces = new Map(); |
| |
| function makeMessage(last, namepath) { |
| return `'${last.name}' not found in` + (namepath.length > 1 ? ' deeply ' : ' ') + `imported namespace '${namepath.join('.')}'.`; |
| } |
| |
| return { |
| |
| // pick up all imports at body entry time, to properly respect hoisting |
| 'Program': function (_ref2) { |
| let body = _ref2.body; |
| |
| function processBodyStatement(declaration) { |
| if (declaration.type !== 'ImportDeclaration') return; |
| |
| if (declaration.specifiers.length === 0) return; |
| |
| const imports = _ExportMap2.default.get(declaration.source.value, context); |
| if (imports == null) return null; |
| |
| if (imports.errors.length) { |
| imports.reportErrors(context, declaration); |
| return; |
| } |
| |
| for (let specifier of declaration.specifiers) { |
| switch (specifier.type) { |
| case 'ImportNamespaceSpecifier': |
| if (!imports.size) { |
| context.report(specifier, `No exported names found in module '${declaration.source.value}'.`); |
| } |
| namespaces.set(specifier.local.name, imports); |
| break; |
| case 'ImportDefaultSpecifier': |
| case 'ImportSpecifier': |
| { |
| const meta = imports.get( |
| // default to 'default' for default http://i.imgur.com/nj6qAWy.jpg |
| specifier.imported ? specifier.imported.name : 'default'); |
| if (!meta || !meta.namespace) break; |
| namespaces.set(specifier.local.name, meta.namespace); |
| break; |
| } |
| } |
| } |
| } |
| body.forEach(processBodyStatement); |
| }, |
| |
| // same as above, but does not add names to local map |
| 'ExportNamespaceSpecifier': function (namespace) { |
| var declaration = (0, _importDeclaration2.default)(context); |
| |
| var imports = _ExportMap2.default.get(declaration.source.value, context); |
| if (imports == null) return null; |
| |
| if (imports.errors.length) { |
| imports.reportErrors(context, declaration); |
| return; |
| } |
| |
| if (!imports.size) { |
| context.report(namespace, `No exported names found in module '${declaration.source.value}'.`); |
| } |
| }, |
| |
| // todo: check for possible redefinition |
| |
| 'MemberExpression': function (dereference) { |
| if (dereference.object.type !== 'Identifier') return; |
| if (!namespaces.has(dereference.object.name)) return; |
| |
| if (dereference.parent.type === 'AssignmentExpression' && dereference.parent.left === dereference) { |
| context.report(dereference.parent, `Assignment to member of namespace '${dereference.object.name}'.`); |
| } |
| |
| // go deep |
| var namespace = namespaces.get(dereference.object.name); |
| var namepath = [dereference.object.name]; |
| // while property is namespace and parent is member expression, keep validating |
| while (namespace instanceof _ExportMap2.default && dereference.type === 'MemberExpression') { |
| |
| if (dereference.computed) { |
| if (!allowComputed) { |
| context.report(dereference.property, 'Unable to validate computed reference to imported namespace \'' + dereference.object.name + '\'.'); |
| } |
| return; |
| } |
| |
| if (!namespace.has(dereference.property.name)) { |
| context.report(dereference.property, makeMessage(dereference.property, namepath)); |
| break; |
| } |
| |
| const exported = namespace.get(dereference.property.name); |
| if (exported == null) return; |
| |
| // stash and pop |
| namepath.push(dereference.property.name); |
| namespace = exported.namespace; |
| dereference = dereference.parent; |
| } |
| }, |
| |
| 'VariableDeclarator': function (_ref3) { |
| let id = _ref3.id, |
| init = _ref3.init; |
| |
| if (init == null) return; |
| if (init.type !== 'Identifier') return; |
| if (!namespaces.has(init.name)) return; |
| |
| // check for redefinition in intermediate scopes |
| if ((0, _declaredScope2.default)(context, init.name) !== 'module') return; |
| |
| // DFS traverse child namespaces |
| function testKey(pattern, namespace) { |
| let path = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : [init.name]; |
| |
| if (!(namespace instanceof _ExportMap2.default)) return; |
| |
| if (pattern.type !== 'ObjectPattern') return; |
| |
| for (let property of pattern.properties) { |
| |
| if (property.key.type !== 'Identifier') { |
| context.report({ |
| node: property, |
| message: 'Only destructure top-level names.' |
| }); |
| continue; |
| } |
| |
| if (!namespace.has(property.key.name)) { |
| context.report({ |
| node: property, |
| message: makeMessage(property.key, path) |
| }); |
| continue; |
| } |
| |
| path.push(property.key.name); |
| testKey(property.value, namespace.get(property.key.name).namespace, path); |
| path.pop(); |
| } |
| } |
| |
| testKey(id, namespaces.get(init.name)); |
| } |
| }; |
| } |
| }; |
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Exports from '../ExportMap'\nimport importDeclaration from '../importDeclaration'\nimport declaredScope from 'eslint-module-utils/declaredScope'\n\nmodule.exports = {\n  meta: {\n    schema: [\n      {\n        'type': 'object',\n        'properties': {\n          'allowComputed': {\n            'description':\n              'If `false`, will report computed (and thus, un-lintable) references ' +\n              'to namespace members.',\n            'type': 'boolean',\n            'default': false,\n          },\n        },\n        'additionalProperties': false,\n      },\n    ],\n  },\n\n  create: function namespaceRule(context) {\n\n    // read options\n    const {\n      allowComputed = false,\n    } = context.options[0] || {}\n\n    const namespaces = new Map()\n\n    function makeMessage(last, namepath) {\n       return `'${last.name}' not found in` +\n              (namepath.length > 1 ? ' deeply ' : ' ') +\n              `imported namespace '${namepath.join('.')}'.`\n    }\n\n    return {\n\n      // pick up all imports at body entry time, to properly respect hoisting\n      'Program': function ({ body }) {\n        function processBodyStatement(declaration) {\n          if (declaration.type !== 'ImportDeclaration') return\n\n          if (declaration.specifiers.length === 0) return\n\n          const imports = Exports.get(declaration.source.value, context)\n          if (imports == null) return null\n\n          if (imports.errors.length) {\n            imports.reportErrors(context, declaration)\n            return\n          }\n\n          for (let specifier of declaration.specifiers) {\n            switch (specifier.type) {\n              case 'ImportNamespaceSpecifier':\n                if (!imports.size) {\n                  context.report(specifier,\n                    `No exported names found in module '${declaration.source.value}'.`)\n                }\n                namespaces.set(specifier.local.name, imports)\n                break\n              case 'ImportDefaultSpecifier':\n              case 'ImportSpecifier': {\n                const meta = imports.get(\n                  // default to 'default' for default http://i.imgur.com/nj6qAWy.jpg\n                  specifier.imported ? specifier.imported.name : 'default')\n                if (!meta || !meta.namespace) break\n                namespaces.set(specifier.local.name, meta.namespace)\n                break\n              }\n            }\n          }\n        }\n        body.forEach(processBodyStatement)\n      },\n\n      // same as above, but does not add names to local map\n      'ExportNamespaceSpecifier': function (namespace) {\n        var declaration = importDeclaration(context)\n\n        var imports = Exports.get(declaration.source.value, context)\n        if (imports == null) return null\n\n        if (imports.errors.length) {\n          imports.reportErrors(context, declaration)\n          return\n        }\n\n        if (!imports.size) {\n          context.report(namespace,\n            `No exported names found in module '${declaration.source.value}'.`)\n        }\n      },\n\n      // todo: check for possible redefinition\n\n      'MemberExpression': function (dereference) {\n        if (dereference.object.type !== 'Identifier') return\n        if (!namespaces.has(dereference.object.name)) return\n\n        if (dereference.parent.type === 'AssignmentExpression' &&\n            dereference.parent.left === dereference) {\n            context.report(dereference.parent,\n                `Assignment to member of namespace '${dereference.object.name}'.`)\n        }\n\n        // go deep\n        var namespace = namespaces.get(dereference.object.name)\n        var namepath = [dereference.object.name]\n        // while property is namespace and parent is member expression, keep validating\n        while (namespace instanceof Exports &&\n               dereference.type === 'MemberExpression') {\n\n          if (dereference.computed) {\n            if (!allowComputed) {\n              context.report(dereference.property,\n                'Unable to validate computed reference to imported namespace \\'' +\n                dereference.object.name + '\\'.')\n            }\n            return\n          }\n\n          if (!namespace.has(dereference.property.name)) {\n            context.report(\n              dereference.property,\n              makeMessage(dereference.property, namepath))\n            break\n          }\n\n          const exported = namespace.get(dereference.property.name)\n          if (exported == null) return\n\n          // stash and pop\n          namepath.push(dereference.property.name)\n          namespace = exported.namespace\n          dereference = dereference.parent\n        }\n\n      },\n\n      'VariableDeclarator': function ({ id, init }) {\n        if (init == null) return\n        if (init.type !== 'Identifier') return\n        if (!namespaces.has(init.name)) return\n\n        // check for redefinition in intermediate scopes\n        if (declaredScope(context, init.name) !== 'module') return\n\n        // DFS traverse child namespaces\n        function testKey(pattern, namespace, path = [init.name]) {\n          if (!(namespace instanceof Exports)) return\n\n          if (pattern.type !== 'ObjectPattern') return\n\n          for (let property of pattern.properties) {\n\n            if (property.key.type !== 'Identifier') {\n              context.report({\n                node: property,\n                message: 'Only destructure top-level names.',\n              })\n              continue\n            }\n\n            if (!namespace.has(property.key.name)) {\n              context.report({\n                node: property,\n                message: makeMessage(property.key, path),\n              })\n              continue\n            }\n\n            path.push(property.key.name)\n            testKey(property.value, namespace.get(property.key.name).namespace, path)\n            path.pop()\n          }\n        }\n\n        testKey(id, namespaces.get(init.name))\n      },\n    }\n  },\n}\n"]} |