import {RuleWalker} from 'tslint/lib/language/walker'; import {RuleFailure} from 'tslint/lib/lint'; 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 { let text = this.getSourceFile().text; let comment = text.substring(range.pos, range.end); return comment.indexOf('@internal') >= 0; } private assertInternalAnnotationPresent(node: ts.Declaration) { if (node.name.getText().charAt(0) !== '_') return; if (node.modifiers && node.modifiers.flags & ts.NodeFlags.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`)); } }