| 'use strict'; |
| |
| var _docsUrl = require('../docsUrl');var _docsUrl2 = _interopRequireDefault(_docsUrl);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { default: obj };} |
| |
| module.exports = { |
| meta: { |
| type: 'suggestion', |
| docs: { |
| url: (0, _docsUrl2.default)('prefer-default-export') }, |
| |
| schema: [] }, |
| |
| |
| create: function (context) { |
| let specifierExportCount = 0; |
| let hasDefaultExport = false; |
| let hasStarExport = false; |
| let hasTypeExport = false; |
| let namedExportNode = null; |
| |
| function captureDeclaration(identifierOrPattern) { |
| if (identifierOrPattern.type === 'ObjectPattern') { |
| // recursively capture |
| identifierOrPattern.properties. |
| forEach(function (property) { |
| captureDeclaration(property.value); |
| }); |
| } else if (identifierOrPattern.type === 'ArrayPattern') { |
| identifierOrPattern.elements. |
| forEach(captureDeclaration); |
| } else { |
| // assume it's a single standard identifier |
| specifierExportCount++; |
| } |
| } |
| |
| return { |
| 'ExportDefaultSpecifier': function () { |
| hasDefaultExport = true; |
| }, |
| |
| 'ExportSpecifier': function (node) { |
| if (node.exported.name === 'default') { |
| hasDefaultExport = true; |
| } else { |
| specifierExportCount++; |
| namedExportNode = node; |
| } |
| }, |
| |
| 'ExportNamedDeclaration': function (node) { |
| // if there are specifiers, node.declaration should be null |
| if (!node.declaration) return;const |
| |
| type = node.declaration.type; |
| |
| if ( |
| type === 'TSTypeAliasDeclaration' || |
| type === 'TypeAlias' || |
| type === 'TSInterfaceDeclaration' || |
| type === 'InterfaceDeclaration') |
| { |
| specifierExportCount++; |
| hasTypeExport = true; |
| return; |
| } |
| |
| if (node.declaration.declarations) { |
| node.declaration.declarations.forEach(function (declaration) { |
| captureDeclaration(declaration.id); |
| }); |
| } else |
| { |
| // captures 'export function foo() {}' syntax |
| specifierExportCount++; |
| } |
| |
| namedExportNode = node; |
| }, |
| |
| 'ExportDefaultDeclaration': function () { |
| hasDefaultExport = true; |
| }, |
| |
| 'ExportAllDeclaration': function () { |
| hasStarExport = true; |
| }, |
| |
| 'Program:exit': function () { |
| if (specifierExportCount === 1 && !hasDefaultExport && !hasStarExport && !hasTypeExport) { |
| context.report(namedExportNode, 'Prefer default export.'); |
| } |
| } }; |
| |
| } }; |
| //# 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|