55 lines
1.8 KiB
TypeScript
55 lines
1.8 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 {NgComponentTemplateVisitor} from '../../utils/ng_component_template';
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import {createHtmlSourceFile} from '../../utils/tslint/tslint_html_source_file';
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import {analyzeResolvedTemplate} from '../template-var-assignment/analyze_template';
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const FAILURE_MESSAGE = 'Found assignment to template variable. This does not work with Ivy and ' +
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'needs to be updated.';
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/**
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* Rule that reports if an Angular template contains property assignments to template variables.
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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 typeChecker = program.getTypeChecker();
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const templateVisitor = new NgComponentTemplateVisitor(typeChecker);
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const failures: RuleFailure[] = [];
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// Analyze the current source files by detecting all referenced HTML templates.
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templateVisitor.visitNode(sourceFile);
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const {resolvedTemplates} = templateVisitor;
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// Analyze each resolved template and print a warning for property writes to
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// template variables.
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resolvedTemplates.forEach(template => {
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const filePath = template.filePath;
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const nodes = analyzeResolvedTemplate(template);
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const templateFile =
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template.inline ? sourceFile : createHtmlSourceFile(filePath, template.content);
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if (!nodes) {
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return;
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}
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nodes.forEach(n => {
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failures.push(new RuleFailure(
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templateFile, template.start + n.start, template.start + n.end, FAILURE_MESSAGE,
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this.ruleName));
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});
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});
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return failures;
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}
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}
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