479 lines
12 KiB
TypeScript
Executable File
479 lines
12 KiB
TypeScript
Executable File
import Declaration, { DeclarationProps } from './declaration.js'
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import Comment, { CommentProps } from './comment.js'
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import { Stringifier, Syntax } from './postcss.js'
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import AtRule, { AtRuleProps } from './at-rule.js'
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import Rule, { RuleProps } from './rule.js'
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import Warning, { WarningOptions } from './warning.js'
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import CssSyntaxError from './css-syntax-error.js'
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import Result from './result.js'
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import Input from './input.js'
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import Root from './root.js'
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import Document from './document.js'
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import Container from './container.js'
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export type ChildNode = AtRule | Rule | Declaration | Comment
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export type AnyNode = AtRule | Rule | Declaration | Comment | Root | Document
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export type ChildProps =
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| AtRuleProps
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| RuleProps
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| DeclarationProps
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| CommentProps
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export interface Position {
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/**
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* Source offset in file. It starts from 0.
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*/
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offset: number
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/**
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* Source line in file. In contrast to `offset` it starts from 1.
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*/
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column: number
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/**
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* Source column in file.
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*/
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line: number
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}
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export interface Range {
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/**
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* Start position, inclusive.
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*/
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start: Position
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/**
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* End position, exclusive.
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*/
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end: Position
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}
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export interface Source {
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/**
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* The file source of the node.
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*/
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input: Input
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/**
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* The inclusive starting position of the node’s source.
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*/
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start?: Position
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/**
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* The inclusive ending position of the node's source.
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*/
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end?: Position
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}
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export interface NodeProps {
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source?: Source
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}
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interface NodeErrorOptions {
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/**
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* Plugin name that created this error. PostCSS will set it automatically.
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*/
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plugin?: string
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/**
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* A word inside a node's string, that should be highlighted as source
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* of error.
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*/
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word?: string
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/**
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* An index inside a node's string that should be highlighted as source
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* of error.
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*/
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index?: number
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/**
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* An ending index inside a node's string that should be highlighted as
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* source of error.
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*/
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endIndex?: number
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}
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/**
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* All node classes inherit the following common methods.
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*
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* You should not extend this classes to create AST for selector or value
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* parser.
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*/
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export default abstract class Node {
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/**
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* tring representing the node’s type. Possible values are `root`, `atrule`,
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* `rule`, `decl`, or `comment`.
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*
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* ```js
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* new Declaration({ prop: 'color', value: 'black' }).type //=> 'decl'
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* ```
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*/
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type: string
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/**
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* The node’s parent node.
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*
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* ```js
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* root.nodes[0].parent === root
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* ```
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*/
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parent: Document | Container | undefined
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/**
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* The input source of the node.
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*
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* The property is used in source map generation.
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*
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* If you create a node manually (e.g., with `postcss.decl()`),
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* that node will not have a `source` property and will be absent
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* from the source map. For this reason, the plugin developer should
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* consider cloning nodes to create new ones (in which case the new node’s
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* source will reference the original, cloned node) or setting
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* the `source` property manually.
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*
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* ```js
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* decl.source.input.from //=> '/home/ai/a.sass'
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* decl.source.start //=> { line: 10, column: 2 }
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* decl.source.end //=> { line: 10, column: 12 }
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* ```
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*
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* ```js
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* // Bad
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* const prefixed = postcss.decl({
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* prop: '-moz-' + decl.prop,
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* value: decl.value
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* })
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*
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* // Good
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* const prefixed = decl.clone({ prop: '-moz-' + decl.prop })
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* ```
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*
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* ```js
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* if (atrule.name === 'add-link') {
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* const rule = postcss.rule({ selector: 'a', source: atrule.source })
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* atrule.parent.insertBefore(atrule, rule)
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* }
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* ```
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*/
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source?: Source
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/**
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* Information to generate byte-to-byte equal node string as it was
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* in the origin input.
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*
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* Every parser saves its own properties,
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* but the default CSS parser uses:
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*
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* * `before`: the space symbols before the node. It also stores `*`
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* and `_` symbols before the declaration (IE hack).
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* * `after`: the space symbols after the last child of the node
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* to the end of the node.
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* * `between`: the symbols between the property and value
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* for declarations, selector and `{` for rules, or last parameter
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* and `{` for at-rules.
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* * `semicolon`: contains true if the last child has
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* an (optional) semicolon.
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* * `afterName`: the space between the at-rule name and its parameters.
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* * `left`: the space symbols between `/*` and the comment’s text.
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* * `right`: the space symbols between the comment’s text
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* and <code>*/</code>.
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* * `important`: the content of the important statement,
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* if it is not just `!important`.
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*
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* PostCSS cleans selectors, declaration values and at-rule parameters
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* from comments and extra spaces, but it stores origin content in raws
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* properties. As such, if you don’t change a declaration’s value,
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* PostCSS will use the raw value with comments.
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*
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* ```js
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* const root = postcss.parse('a {\n color:black\n}')
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* root.first.first.raws //=> { before: '\n ', between: ':' }
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* ```
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*/
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raws: any
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/**
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* @param defaults Value for node properties.
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*/
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constructor(defaults?: object)
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/**
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* Returns a `CssSyntaxError` instance containing the original position
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* of the node in the source, showing line and column numbers and also
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* a small excerpt to facilitate debugging.
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*
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* If present, an input source map will be used to get the original position
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* of the source, even from a previous compilation step
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* (e.g., from Sass compilation).
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*
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* This method produces very useful error messages.
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*
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* ```js
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* if (!variables[name]) {
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* throw decl.error(`Unknown variable ${name}`, { word: name })
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* // CssSyntaxError: postcss-vars:a.sass:4:3: Unknown variable $black
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* // color: $black
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* // a
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* // ^
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* // background: white
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* }
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* ```
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*
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* @param message Error description.
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* @param opts Options.
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*
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* @return Error object to throw it.
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*/
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error(message: string, options?: NodeErrorOptions): CssSyntaxError
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/**
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* This method is provided as a convenience wrapper for `Result#warn`.
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*
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* ```js
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* Declaration: {
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* bad: (decl, { result }) => {
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* decl.warn(result, 'Deprecated property bad')
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* }
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* }
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* ```
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*
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* @param result The `Result` instance that will receive the warning.
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* @param text Warning message.
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* @param opts Warning Options.
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*
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* @return Created warning object.
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*/
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warn(result: Result, text: string, opts?: WarningOptions): Warning
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/**
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* Removes the node from its parent and cleans the parent properties
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* from the node and its children.
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*
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* ```js
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* if (decl.prop.match(/^-webkit-/)) {
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* decl.remove()
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* }
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* ```
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*
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* @return Node to make calls chain.
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*/
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remove(): this
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/**
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* Returns a CSS string representing the node.
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*
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* ```js
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* new Rule({ selector: 'a' }).toString() //=> "a {}"
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* ```
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*
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* @param stringifier A syntax to use in string generation.
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* @return CSS string of this node.
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*/
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toString(stringifier?: Stringifier | Syntax): string
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/**
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* Assigns properties to the current node.
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*
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* ```js
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* decl.assign({ prop: 'word-wrap', value: 'break-word' })
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* ```
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*
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* @param overrides New properties to override the node.
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* @return Current node to methods chain.
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*/
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assign(overrides: object): this
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/**
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* Returns an exact clone of the node.
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*
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* The resulting cloned node and its (cloned) children will retain
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* code style properties.
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*
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* ```js
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* decl.raws.before //=> "\n "
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* const cloned = decl.clone({ prop: '-moz-' + decl.prop })
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* cloned.raws.before //=> "\n "
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* cloned.toString() //=> -moz-transform: scale(0)
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* ```
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*
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* @param overrides New properties to override in the clone.
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* @return Clone of the node.
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*/
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clone(overrides?: object): this
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/**
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* Shortcut to clone the node and insert the resulting cloned node
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* before the current node.
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*
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* ```js
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* decl.cloneBefore({ prop: '-moz-' + decl.prop })
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* ```
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*
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* @param overrides Mew properties to override in the clone.
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*
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* @return New node
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*/
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cloneBefore(overrides?: object): this
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/**
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* Shortcut to clone the node and insert the resulting cloned node
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* after the current node.
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*
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* @param overrides New properties to override in the clone.
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* @return New node.
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*/
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cloneAfter(overrides?: object): this
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/**
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* Inserts node(s) before the current node and removes the current node.
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*
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* ```js
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* AtRule: {
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* mixin: atrule => {
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* atrule.replaceWith(mixinRules[atrule.params])
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* }
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* }
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* ```
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*
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* @param nodes Mode(s) to replace current one.
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* @return Current node to methods chain.
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*/
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replaceWith(
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...nodes: (ChildNode | ChildProps | ChildNode[] | ChildProps[])[]
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): this
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/**
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* Returns the next child of the node’s parent.
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* Returns `undefined` if the current node is the last child.
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*
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* ```js
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* if (comment.text === 'delete next') {
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* const next = comment.next()
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* if (next) {
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* next.remove()
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* }
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* }
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* ```
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*
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* @return Next node.
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*/
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next(): ChildNode | undefined
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/**
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* Returns the previous child of the node’s parent.
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* Returns `undefined` if the current node is the first child.
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*
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* ```js
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* const annotation = decl.prev()
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* if (annotation.type === 'comment') {
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* readAnnotation(annotation.text)
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* }
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* ```
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*
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* @return Previous node.
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*/
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prev(): ChildNode | undefined
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/**
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* Insert new node before current node to current node’s parent.
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*
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* Just alias for `node.parent.insertBefore(node, add)`.
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*
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* ```js
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* decl.before('content: ""')
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* ```
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*
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* @param newNode New node.
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* @return This node for methods chain.
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*/
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before(newNode: Node | ChildProps | string | Node[]): this
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/**
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* Insert new node after current node to current node’s parent.
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*
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* Just alias for `node.parent.insertAfter(node, add)`.
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*
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* ```js
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* decl.after('color: black')
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* ```
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*
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* @param newNode New node.
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* @return This node for methods chain.
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*/
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after(newNode: Node | ChildProps | string | Node[]): this
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/**
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* Finds the Root instance of the node’s tree.
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*
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* ```js
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* root.nodes[0].nodes[0].root() === root
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* ```
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*
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* @return Root parent.
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*/
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root(): Root
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/**
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* Returns a `Node#raws` value. If the node is missing
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* the code style property (because the node was manually built or cloned),
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* PostCSS will try to autodetect the code style property by looking
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* at other nodes in the tree.
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*
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* ```js
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* const root = postcss.parse('a { background: white }')
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* root.nodes[0].append({ prop: 'color', value: 'black' })
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* root.nodes[0].nodes[1].raws.before //=> undefined
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* root.nodes[0].nodes[1].raw('before') //=> ' '
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* ```
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*
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* @param prop Name of code style property.
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* @param defaultType Name of default value, it can be missed
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* if the value is the same as prop.
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* @return {string} Code style value.
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*/
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raw(prop: string, defaultType?: string): string
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/**
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* Clear the code style properties for the node and its children.
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*
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* ```js
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* node.raws.before //=> ' '
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* node.cleanRaws()
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* node.raws.before //=> undefined
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* ```
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*
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* @param keepBetween Keep the `raws.between` symbols.
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*/
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cleanRaws(keepBetween?: boolean): void
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/**
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* Fix circular links on `JSON.stringify()`.
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*
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* @return Cleaned object.
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*/
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toJSON(): object
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/**
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* Convert string index to line/column.
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*
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* @param index The symbol number in the node’s string.
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* @return Symbol position in file.
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*/
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positionInside(index: number): Position
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/**
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* Get the position for a word or an index inside the node.
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*
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* @param opts Options.
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* @return Position.
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*/
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positionBy(opts?: Pick<WarningOptions, 'word' | 'index'>): Position
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/**
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* Get the range for a word or start and end index inside the node.
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* The start index is inclusive; the end index is exclusive.
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*
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* @param opts Options.
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* @return Range.
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*/
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rangeBy(opts?: Pick<WarningOptions, 'word' | 'index' | 'endIndex'>): Range
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}
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