angular-cn/tools/tslint/requireInternalWithUnderscoreRule.ts
Joey Perrott d1ea1f4c7f build: update license headers to reference Google LLC ()
Update the license headers throughout the repository to reference Google LLC
rather than Google Inc, for the required license headers.

PR Close 
2020-05-26 14:26:58 -04:00

53 lines
1.8 KiB
TypeScript

/**
* @license
* Copyright Google LLC All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
import {RuleFailure} from 'tslint/lib';
import {RuleWalker} from 'tslint/lib/language/walker';
import {AbstractRule} from 'tslint/lib/rules';
import * as ts from 'typescript';
export class Rule extends AbstractRule {
public apply(sourceFile: ts.SourceFile): RuleFailure[] {
const typedefWalker = new TypedefWalker(sourceFile, this.getOptions());
return this.applyWithWalker(typedefWalker);
}
}
class TypedefWalker extends RuleWalker {
protected visitPropertyDeclaration(node: ts.PropertyDeclaration): void {
this.assertInternalAnnotationPresent(node);
super.visitPropertyDeclaration(node);
}
public visitMethodDeclaration(node: ts.MethodDeclaration): void {
this.assertInternalAnnotationPresent(node);
super.visitMethodDeclaration(node);
}
private hasInternalAnnotation(range: ts.CommentRange): boolean {
const text = this.getSourceFile().text;
const comment = text.substring(range.pos, range.end);
return comment.indexOf('@internal') >= 0;
}
private assertInternalAnnotationPresent(node: ts.NamedDeclaration) {
if (node.name && node.name.getText().charAt(0) !== '_') return;
if (ts.getCombinedModifierFlags(node) & ts.ModifierFlags.Private) return;
const ranges = ts.getLeadingCommentRanges(this.getSourceFile().text, node.pos);
if (ranges) {
for (let i = 0; i < ranges.length; i++) {
if (this.hasInternalAnnotation(ranges[i])) return;
}
}
this.addFailure(this.createFailure(
node.getStart(), node.getWidth(),
`module-private member ${node.name.getText()} must be annotated @internal`));
}
}