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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,60 +1,63 @@ | ||
| // import { Type } from './constants.js' | ||
| // interface LinePos { line: number; col: number } | ||
| import type { LineCounter } from './parse/line-counter' | ||
|
|
||
| export class YAMLError extends Error { | ||
| name: 'YAMLParseError' | 'YAMLWarning' | ||
| message: string | ||
| offset?: number | ||
| offset: number | ||
| linePos?: { line: number; col: number } | ||
|
|
||
| // nodeType?: Type | ||
| // range?: CST.Range | ||
| // linePos?: { start: LinePos; end: LinePos } | ||
|
|
||
| constructor(name: YAMLError['name'], offset: number | null, message: string) { | ||
| constructor(name: YAMLError['name'], offset: number, message: string) { | ||
| if (!message) throw new Error(`Invalid arguments for new ${name}`) | ||
| super() | ||
| this.name = name | ||
| this.message = message | ||
| if (typeof offset === 'number') this.offset = offset | ||
| } | ||
|
|
||
| /** | ||
| * Drops `source` and adds `nodeType`, `range` and `linePos`, as well as | ||
| * adding details to `message`. Run automatically for document errors if | ||
| * the `prettyErrors` option is set. | ||
| */ | ||
| makePretty() { | ||
| // this.nodeType = this.source.type | ||
| // const cst = this.source.context && this.source.context.root | ||
| // if (typeof this.offset === 'number') { | ||
| // this.range = new Range(this.offset, this.offset + 1) | ||
| // const start = cst && getLinePos(this.offset, cst) | ||
| // if (start) { | ||
| // const end = { line: start.line, col: start.col + 1 } | ||
| // this.linePos = { start, end } | ||
| // } | ||
| // delete this.offset | ||
| // } else { | ||
| // this.range = this.source.range | ||
| // this.linePos = this.source.rangeAsLinePos | ||
| // } | ||
| // if (this.linePos) { | ||
| // const { line, col } = this.linePos.start | ||
| // this.message += ` at line ${line}, column ${col}` | ||
| // const ctx = cst && getPrettyContext(this.linePos, cst) | ||
| // if (ctx) this.message += `:\n\n${ctx}\n` | ||
| // } | ||
| this.offset = offset | ||
| } | ||
| } | ||
|
|
||
| export class YAMLParseError extends YAMLError { | ||
| constructor(offset: number | null, message: string) { | ||
| constructor(offset: number, message: string) { | ||
| super('YAMLParseError', offset, message) | ||
| } | ||
| } | ||
|
|
||
| export class YAMLWarning extends YAMLError { | ||
| constructor(offset: number | null, message: string) { | ||
| constructor(offset: number, message: string) { | ||
| super('YAMLWarning', offset, message) | ||
| } | ||
| } | ||
|
|
||
| export const prettifyError = (src: string, lc: LineCounter) => ( | ||
| error: YAMLError | ||
| ) => { | ||
| if (error.offset === -1) return | ||
| error.linePos = lc.linePos(error.offset) | ||
| const { line, col } = error.linePos | ||
| error.message += ` at line ${line}, column ${col}` | ||
|
|
||
| let ci = col - 1 | ||
| let lineStr = src | ||
| .substring(lc.lineStarts[line - 1], lc.lineStarts[line]) | ||
| .replace(/[\n\r]+$/, '') | ||
|
|
||
| // Trim to max 80 chars, keeping col position near the middle | ||
| if (ci >= 60 && lineStr.length > 80) { | ||
| const trimStart = Math.min(ci - 39, lineStr.length - 79) | ||
| lineStr = '…' + lineStr.substring(trimStart) | ||
| ci -= trimStart - 1 | ||
| } | ||
| if (lineStr.length > 80) lineStr = lineStr.substring(0, 79) + '…' | ||
|
|
||
| // Include previous line in context if pointing at line start | ||
| if (line > 1 && /^ *$/.test(lineStr.substring(0, ci))) { | ||
| // Regexp won't match if start is trimmed | ||
| let prev = src.substring(lc.lineStarts[line - 2], lc.lineStarts[line - 1]) | ||
| if (prev.length > 80) prev = prev.substring(0, 79) + '…\n' | ||
| lineStr = prev + lineStr | ||
| } | ||
|
|
||
| if (/[^ ]/.test(lineStr)) { | ||
| const pointer = ' '.repeat(ci) + '^' | ||
| error.message += `:\n\n${lineStr}\n${pointer}\n` | ||
| } | ||
| } |
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