85 lines
12 KiB
JavaScript
85 lines
12 KiB
JavaScript
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'use strict';var _minimatch = require('minimatch');var _minimatch2 = _interopRequireDefault(_minimatch);
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var _path = require('path');var _path2 = _interopRequireDefault(_path);
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var _pkgUp = require('eslint-module-utils/pkgUp');var _pkgUp2 = _interopRequireDefault(_pkgUp);function _interopRequireDefault(obj) {return obj && obj.__esModule ? obj : { 'default': obj };}
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function getEntryPoint(context) {
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var pkgPath = (0, _pkgUp2['default'])({ cwd: context.getPhysicalFilename ? context.getPhysicalFilename() : context.getFilename() });
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try {
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return require.resolve(_path2['default'].dirname(pkgPath));
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} catch (error) {
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// Assume the package has no entrypoint (e.g. CLI packages)
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// in which case require.resolve would throw.
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return null;
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}
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}
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function findScope(context, identifier) {var _context$getSourceCod =
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context.getSourceCode(),scopeManager = _context$getSourceCod.scopeManager;
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return scopeManager && scopeManager.scopes.slice().reverse().find(function (scope) {return scope.variables.some(function (variable) {return variable.identifiers.some(function (node) {return node.name === identifier;});});});
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}
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function findDefinition(objectScope, identifier) {
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var variable = objectScope.variables.find(function (variable) {return variable.name === identifier;});
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return variable.defs.find(function (def) {return def.name.name === identifier;});
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}
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module.exports = {
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meta: {
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type: 'problem',
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docs: {
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category: 'Module systems',
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description: 'Forbid import statements with CommonJS module.exports.',
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recommended: true },
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fixable: 'code',
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schema: [
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{
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type: 'object',
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properties: {
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exceptions: { type: 'array' } },
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additionalProperties: false }] },
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create: function () {function create(context) {
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var importDeclarations = [];
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var entryPoint = getEntryPoint(context);
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var options = context.options[0] || {};
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var alreadyReported = false;
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function report(node) {
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var fileName = context.getPhysicalFilename ? context.getPhysicalFilename() : context.getFilename();
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var isEntryPoint = entryPoint === fileName;
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var isIdentifier = node.object.type === 'Identifier';
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var hasKeywords = /^(module|exports)$/.test(node.object.name);
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var objectScope = hasKeywords && findScope(context, node.object.name);
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var variableDefinition = objectScope && findDefinition(objectScope, node.object.name);
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var isImportBinding = variableDefinition && variableDefinition.type === 'ImportBinding';
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var hasCJSExportReference = hasKeywords && (!objectScope || objectScope.type === 'module');
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var isException = !!options.exceptions && options.exceptions.some(function (glob) {return (0, _minimatch2['default'])(fileName, glob);});
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if (isIdentifier && hasCJSExportReference && !isEntryPoint && !isException && !isImportBinding) {
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importDeclarations.forEach(function (importDeclaration) {
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context.report({
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node: importDeclaration,
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message: 'Cannot use import declarations in modules that export using CommonJS (module.exports = \'foo\' or exports.bar = \'hi\')' });
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});
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alreadyReported = true;
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}
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}
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return {
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ImportDeclaration: function () {function ImportDeclaration(node) {
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importDeclarations.push(node);
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}return ImportDeclaration;}(),
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MemberExpression: function () {function MemberExpression(node) {
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if (!alreadyReported) {
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report(node);
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}
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}return MemberExpression;}() };
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}return create;}() };
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