88 lines
2.2 KiB
TypeScript
88 lines
2.2 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 {isPresent} from './facade/lang';
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export class ParseLocation {
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constructor(
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public file: ParseSourceFile, public offset: number, public line: number,
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public col: number) {}
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toString(): string {
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return isPresent(this.offset) ? `${this.file.url}@${this.line}:${this.col}` : this.file.url;
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}
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}
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export class ParseSourceFile {
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constructor(public content: string, public url: string) {}
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}
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export class ParseSourceSpan {
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constructor(
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public start: ParseLocation, public end: ParseLocation, public details: string = null) {}
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toString(): string {
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return this.start.file.content.substring(this.start.offset, this.end.offset);
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}
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}
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export enum ParseErrorLevel {
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WARNING,
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FATAL
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}
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export abstract class ParseError {
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constructor(
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public span: ParseSourceSpan, public msg: string,
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public level: ParseErrorLevel = ParseErrorLevel.FATAL) {}
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toString(): string {
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var source = this.span.start.file.content;
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var ctxStart = this.span.start.offset;
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var contextStr = '';
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var details = '';
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if (isPresent(ctxStart)) {
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if (ctxStart > source.length - 1) {
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ctxStart = source.length - 1;
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}
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var ctxEnd = ctxStart;
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var ctxLen = 0;
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var ctxLines = 0;
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while (ctxLen < 100 && ctxStart > 0) {
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ctxStart--;
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ctxLen++;
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if (source[ctxStart] == '\n') {
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if (++ctxLines == 3) {
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break;
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}
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}
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}
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ctxLen = 0;
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ctxLines = 0;
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while (ctxLen < 100 && ctxEnd < source.length - 1) {
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ctxEnd++;
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ctxLen++;
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if (source[ctxEnd] == '\n') {
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if (++ctxLines == 3) {
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break;
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}
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}
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}
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let context = source.substring(ctxStart, this.span.start.offset) + '[ERROR ->]' +
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source.substring(this.span.start.offset, ctxEnd + 1);
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contextStr = ` ("${context}")`;
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}
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if (this.span.details) {
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details = `, ${this.span.details}`;
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}
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return `${this.msg}${contextStr}: ${this.span.start}${details}`;
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}
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}
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