67 lines
2.5 KiB
TypeScript
67 lines
2.5 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {RuleFailure, Rules} from 'tslint';
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import * as ts from 'typescript';
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import {TslintUpdateRecorder} from '../missing-injectable/google3/tslint_update_recorder';
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import {NgModuleCollector} from '../missing-injectable/module_collector';
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import {MissingInjectableTransform} from '../missing-injectable/transform';
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/**
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* TSLint rule that flags classes which are declared as providers in NgModules but
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* aren't decorated with any Angular decorator.
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*/
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export class Rule extends Rules.TypedRule {
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applyWithProgram(sourceFile: ts.SourceFile, program: ts.Program): RuleFailure[] {
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const ruleName = this.ruleName;
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const typeChecker = program.getTypeChecker();
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const sourceFiles = program.getSourceFiles().filter(
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s => !s.isDeclarationFile && !program.isSourceFileFromExternalLibrary(s));
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const moduleCollector = new NgModuleCollector(typeChecker);
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const failures: RuleFailure[] = [];
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// Analyze source files by detecting all NgModule definitions.
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sourceFiles.forEach(sourceFile => moduleCollector.visitNode(sourceFile));
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const {resolvedModules} = moduleCollector;
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const transformer = new MissingInjectableTransform(typeChecker, getUpdateRecorder);
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const updateRecorders = new Map<ts.SourceFile, TslintUpdateRecorder>();
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resolvedModules.forEach(module => {
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transformer.migrateModule(module).forEach(({message, node}) => {
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// Only report failures for the current source file that is visited.
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if (node.getSourceFile() === sourceFile) {
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failures.push(
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new RuleFailure(node.getSourceFile(), node.getStart(), 0, message, ruleName));
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}
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});
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});
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// Record the changes collected in the import manager and NgModule manager.
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transformer.recordChanges();
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if (updateRecorders.has(sourceFile)) {
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failures.push(...updateRecorders.get(sourceFile) !.failures);
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}
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return failures;
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/** Gets the update recorder for the specified source file. */
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function getUpdateRecorder(sourceFile: ts.SourceFile): TslintUpdateRecorder {
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if (updateRecorders.has(sourceFile)) {
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return updateRecorders.get(sourceFile) !;
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}
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const recorder = new TslintUpdateRecorder(ruleName, sourceFile);
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updateRecorders.set(sourceFile, recorder);
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return recorder;
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}
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}
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}
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