angular-cn/tools/tslint/requireInternalWithUndersco...

53 lines
1.8 KiB
TypeScript

/**
* @license
* Copyright Google Inc. 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`));
}
}