155 lines
15 KiB
JavaScript
155 lines
15 KiB
JavaScript
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'use strict';
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var _declaredScope = require('eslint-module-utils/declaredScope');
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var _declaredScope2 = _interopRequireDefault(_declaredScope);
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var _ExportMap = require('../ExportMap');
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var _ExportMap2 = _interopRequireDefault(_ExportMap);
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var _docsUrl = require('../docsUrl');
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var _docsUrl2 = _interopRequireDefault(_docsUrl);
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function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
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function message(deprecation) {
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return 'Deprecated' + (deprecation.description ? ': ' + deprecation.description : '.');
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}
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function getDeprecation(metadata) {
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if (!metadata || !metadata.doc) return;
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let deprecation;
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if (metadata.doc.tags.some(t => t.title === 'deprecated' && (deprecation = t))) {
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return deprecation;
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}
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}
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module.exports = {
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meta: {
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docs: {
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url: (0, _docsUrl2.default)('no-deprecated')
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}
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},
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create: function (context) {
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const deprecated = new Map(),
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namespaces = new Map();
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function checkSpecifiers(node) {
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if (node.type !== 'ImportDeclaration') return;
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if (node.source == null) return; // local export, ignore
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const imports = _ExportMap2.default.get(node.source.value, context);
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if (imports == null) return;
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let moduleDeprecation;
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if (imports.doc && imports.doc.tags.some(t => t.title === 'deprecated' && (moduleDeprecation = t))) {
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context.report({ node, message: message(moduleDeprecation) });
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}
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if (imports.errors.length) {
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imports.reportErrors(context, node);
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return;
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}
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node.specifiers.forEach(function (im) {
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let imported, local;
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switch (im.type) {
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case 'ImportNamespaceSpecifier':
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{
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if (!imports.size) return;
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namespaces.set(im.local.name, imports);
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return;
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}
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case 'ImportDefaultSpecifier':
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imported = 'default';
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local = im.local.name;
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break;
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case 'ImportSpecifier':
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imported = im.imported.name;
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local = im.local.name;
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break;
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default:
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return; // can't handle this one
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}
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// unknown thing can't be deprecated
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const exported = imports.get(imported);
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if (exported == null) return;
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// capture import of deep namespace
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if (exported.namespace) namespaces.set(local, exported.namespace);
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const deprecation = getDeprecation(imports.get(imported));
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if (!deprecation) return;
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context.report({ node: im, message: message(deprecation) });
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deprecated.set(local, deprecation);
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});
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}
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return {
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'Program': (_ref) => {
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let body = _ref.body;
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return body.forEach(checkSpecifiers);
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},
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'Identifier': function (node) {
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if (node.parent.type === 'MemberExpression' && node.parent.property === node) {
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return; // handled by MemberExpression
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}
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// ignore specifier identifiers
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if (node.parent.type.slice(0, 6) === 'Import') return;
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if (!deprecated.has(node.name)) return;
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if ((0, _declaredScope2.default)(context, node.name) !== 'module') return;
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context.report({
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node,
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message: message(deprecated.get(node.name))
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});
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},
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'MemberExpression': function (dereference) {
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if (dereference.object.type !== 'Identifier') return;
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if (!namespaces.has(dereference.object.name)) return;
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if ((0, _declaredScope2.default)(context, dereference.object.name) !== 'module') return;
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// go deep
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var namespace = namespaces.get(dereference.object.name);
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var namepath = [dereference.object.name];
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// while property is namespace and parent is member expression, keep validating
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while (namespace instanceof _ExportMap2.default && dereference.type === 'MemberExpression') {
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// ignore computed parts for now
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if (dereference.computed) return;
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const metadata = namespace.get(dereference.property.name);
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if (!metadata) break;
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const deprecation = getDeprecation(metadata);
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if (deprecation) {
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context.report({ node: dereference.property, message: message(deprecation) });
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}
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// stash and pop
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namepath.push(dereference.property.name);
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namespace = metadata.namespace;
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dereference = dereference.parent;
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}
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}
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};
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}
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};
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