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240 lines
6.1 KiB
240 lines
6.1 KiB
3 years ago
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import { FilePosition } from './input.js'
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/**
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* A position that is part of a range.
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*/
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export interface RangePosition {
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/**
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* The line number in the input.
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*/
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line: number
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/**
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* The column number in the input.
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*/
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column: number
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}
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/**
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* The CSS parser throws this error for broken CSS.
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*
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* Custom parsers can throw this error for broken custom syntax using
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* the `Node#error` method.
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*
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* PostCSS will use the input source map to detect the original error location.
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* If you wrote a Sass file, compiled it to CSS and then parsed it with PostCSS,
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* PostCSS will show the original position in the Sass file.
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*
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* If you need the position in the PostCSS input
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* (e.g., to debug the previous compiler), use `error.input.file`.
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*
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* ```js
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* // Raising error from plugin
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* throw node.error('Unknown variable', { plugin: 'postcss-vars' })
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* ```
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*
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* ```js
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* // Catching and checking syntax error
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* try {
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* postcss.parse('a{')
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* } catch (error) {
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* if (error.name === 'CssSyntaxError') {
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* error //=> CssSyntaxError
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* }
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* }
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* ```
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*/
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export default class CssSyntaxError {
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/**
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* Instantiates a CSS syntax error. Can be instantiated for a single position
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* or for a range.
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* @param message Error message.
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* @param lineOrStartPos If for a single position, the line number, or if for
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* a range, the inclusive start position of the error.
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* @param columnOrEndPos If for a single position, the column number, or if for
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* a range, the exclusive end position of the error.
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* @param source Source code of the broken file.
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* @param file Absolute path to the broken file.
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* @param plugin PostCSS plugin name, if error came from plugin.
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*/
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constructor(
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message: string,
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lineOrStartPos?: number | RangePosition,
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columnOrEndPos?: number | RangePosition,
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source?: string,
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file?: string,
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plugin?: string
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)
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stack: string
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/**
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* Always equal to `'CssSyntaxError'`. You should always check error type
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* by `error.name === 'CssSyntaxError'`
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* instead of `error instanceof CssSyntaxError`,
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* because npm could have several PostCSS versions.
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*
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* ```js
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* if (error.name === 'CssSyntaxError') {
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* error //=> CssSyntaxError
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* }
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* ```
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*/
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name: 'CssSyntaxError'
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/**
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* Error message.
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*
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* ```js
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* error.message //=> 'Unclosed block'
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* ```
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*/
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reason: string
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/**
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* Full error text in the GNU error format
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* with plugin, file, line and column.
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*
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* ```js
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* error.message //=> 'a.css:1:1: Unclosed block'
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* ```
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*/
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message: string
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/**
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* Absolute path to the broken file.
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*
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* ```js
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* error.file //=> 'a.sass'
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* error.input.file //=> 'a.css'
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* ```
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*
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* PostCSS will use the input source map to detect the original location.
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* If you need the position in the PostCSS input, use `error.input.file`.
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*/
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file?: string
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/**
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* Source line of the error.
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*
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* ```js
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* error.line //=> 2
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* error.input.line //=> 4
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* ```
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*
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* PostCSS will use the input source map to detect the original location.
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* If you need the position in the PostCSS input, use `error.input.line`.
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*/
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line?: number
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/**
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* Source column of the error.
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*
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* ```js
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* error.column //=> 1
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* error.input.column //=> 4
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* ```
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*
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* PostCSS will use the input source map to detect the original location.
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* If you need the position in the PostCSS input, use `error.input.column`.
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*/
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column?: number
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/**
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* Source line of the error's end, exclusive. Provided if the error pertains
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* to a range.
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*
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* ```js
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* error.endLine //=> 3
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* error.input.endLine //=> 4
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* ```
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*
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* PostCSS will use the input source map to detect the original location.
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* If you need the position in the PostCSS input, use `error.input.endLine`.
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*/
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endLine?: number
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/**
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* Source column of the error's end, exclusive. Provided if the error pertains
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* to a range.
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*
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* ```js
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* error.endColumn //=> 1
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* error.input.endColumn //=> 4
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* ```
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*
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* PostCSS will use the input source map to detect the original location.
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* If you need the position in the PostCSS input, use `error.input.endColumn`.
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*/
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endColumn?: number
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/**
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* Source code of the broken file.
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*
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* ```js
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* error.source //=> 'a { b {} }'
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* error.input.source //=> 'a b { }'
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* ```
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*/
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source?: string
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/**
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* Plugin name, if error came from plugin.
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*
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* ```js
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* error.plugin //=> 'postcss-vars'
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* ```
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*/
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plugin?: string
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/**
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* Input object with PostCSS internal information
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* about input file. If input has source map
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* from previous tool, PostCSS will use origin
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* (for example, Sass) source. You can use this
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* object to get PostCSS input source.
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*
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* ```js
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* error.input.file //=> 'a.css'
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* error.file //=> 'a.sass'
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* ```
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*/
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input?: FilePosition
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/**
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* Returns error position, message and source code of the broken part.
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*
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* ```js
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* error.toString() //=> "CssSyntaxError: app.css:1:1: Unclosed block
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* // > 1 | a {
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* // | ^"
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* ```
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*
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* @return Error position, message and source code.
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*/
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toString(): string
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/**
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* Returns a few lines of CSS source that caused the error.
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*
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* If the CSS has an input source map without `sourceContent`,
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* this method will return an empty string.
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*
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* ```js
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* error.showSourceCode() //=> " 4 | }
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* // 5 | a {
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* // > 6 | bad
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* // | ^
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* // 7 | }
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* // 8 | b {"
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* ```
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*
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* @param color Whether arrow will be colored red by terminal
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* color codes. By default, PostCSS will detect
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* color support by `process.stdout.isTTY`
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* and `process.env.NODE_DISABLE_COLORS`.
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* @return Few lines of CSS source that caused the error.
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*/
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showSourceCode(color?: boolean): string
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}
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