1 | import Declaration, { DeclarationProps } from './declaration.js'
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2 | import Comment, { CommentProps } from './comment.js'
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3 | import { Stringifier, Syntax } from './postcss.js'
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4 | import AtRule, { AtRuleProps } from './at-rule.js'
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5 | import Rule, { RuleProps } from './rule.js'
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6 | import { WarningOptions } from './warning.js'
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7 | import CssSyntaxError from './css-syntax-error.js'
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8 | import Result from './result.js'
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9 | import Input from './input.js'
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10 | import Root from './root.js'
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11 | import Document from './document.js'
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12 | import Container from './container.js'
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13 |
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14 | export type ChildNode = AtRule | Rule | Declaration | Comment
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15 |
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16 | export type AnyNode = AtRule | Rule | Declaration | Comment | Root | Document
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17 |
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18 | export type ChildProps =
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19 | | AtRuleProps
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20 | | RuleProps
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21 | | DeclarationProps
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22 | | CommentProps
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23 |
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24 | export interface Position {
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25 | /**
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26 | * Source offset in file. It starts from 0.
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27 | */
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28 | offset: number
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29 |
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30 | /**
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31 | * Source line in file. In contrast to `offset` it starts from 1.
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32 | */
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33 | column: number
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34 |
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35 | /**
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36 | * Source column in file.
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37 | */
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38 | line: number
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39 | }
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40 |
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41 | export interface Source {
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42 | /**
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43 | * The file source of the node.
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44 | */
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45 | input: Input
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46 | /**
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47 | * The starting position of the node’s source.
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48 | */
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49 | start?: Position
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50 | /**
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51 | * The ending position of the node's source.
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52 | */
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53 | end?: Position
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54 | }
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55 |
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56 | export interface NodeProps {
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57 | source?: Source
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58 | }
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59 |
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60 | interface NodeErrorOptions {
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61 | /**
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62 | * Plugin name that created this error. PostCSS will set it automatically.
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63 | */
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64 | plugin?: string
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65 | /**
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66 | * A word inside a node's string, that should be highlighted as source
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67 | * of error.
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68 | */
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69 | word?: string
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70 | /**
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71 | * An index inside a node's string that should be highlighted as source
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72 | * of error.
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73 | */
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74 | index?: number
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75 | }
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76 |
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77 | /**
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78 | * All node classes inherit the following common methods.
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79 | *
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80 | * You should not extend this classes to create AST for selector or value
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81 | * parser.
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82 | */
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83 | export default abstract class Node {
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84 | /**
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85 | * tring representing the node’s type. Possible values are `root`, `atrule`,
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86 | * `rule`, `decl`, or `comment`.
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87 | *
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88 | * ```js
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89 | * new Declaration({ prop: 'color', value: 'black' }).type //=> 'decl'
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90 | * ```
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91 | */
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92 | type: string
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93 |
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94 | /**
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95 | * The node’s parent node.
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96 | *
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97 | * ```js
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98 | * root.nodes[0].parent === root
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99 | * ```
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100 | */
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101 | parent: Document | Container | undefined
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102 |
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103 | /**
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104 | * The input source of the node.
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105 | *
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106 | * The property is used in source map generation.
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107 | *
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108 | * If you create a node manually (e.g., with `postcss.decl()`),
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109 | * that node will not have a `source` property and will be absent
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110 | * from the source map. For this reason, the plugin developer should
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111 | * consider cloning nodes to create new ones (in which case the new node’s
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112 | * source will reference the original, cloned node) or setting
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113 | * the `source` property manually.
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114 | *
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115 | * ```js
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116 | * decl.source.input.from //=> '/home/ai/a.sass'
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117 | * decl.source.start //=> { line: 10, column: 2 }
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118 | * decl.source.end //=> { line: 10, column: 12 }
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119 | * ```
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120 | *
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121 | * ```js
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122 | * // Bad
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123 | * const prefixed = postcss.decl({
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124 | * prop: '-moz-' + decl.prop,
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125 | * value: decl.value
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126 | * })
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127 | *
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128 | * // Good
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129 | * const prefixed = decl.clone({ prop: '-moz-' + decl.prop })
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130 | * ```
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131 | *
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132 | * ```js
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133 | * if (atrule.name === 'add-link') {
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134 | * const rule = postcss.rule({ selector: 'a', source: atrule.source })
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135 | * atrule.parent.insertBefore(atrule, rule)
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136 | * }
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137 | * ```
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138 | */
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139 | source?: Source
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140 |
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141 | /**
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142 | * Information to generate byte-to-byte equal node string as it was
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143 | * in the origin input.
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144 | *
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145 | * Every parser saves its own properties,
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146 | * but the default CSS parser uses:
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147 | *
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148 | * * `before`: the space symbols before the node. It also stores `*`
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149 | * and `_` symbols before the declaration (IE hack).
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150 | * * `after`: the space symbols after the last child of the node
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151 | * to the end of the node.
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152 | * * `between`: the symbols between the property and value
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153 | * for declarations, selector and `{` for rules, or last parameter
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154 | * and `{` for at-rules.
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155 | * * `semicolon`: contains true if the last child has
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156 | * an (optional) semicolon.
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157 | * * `afterName`: the space between the at-rule name and its parameters.
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158 | * * `left`: the space symbols between `/*` and the comment’s text.
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159 | * * `right`: the space symbols between the comment’s text
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160 | * and <code>*/</code>.
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161 | * * `important`: the content of the important statement,
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162 | * if it is not just `!important`.
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163 | *
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164 | * PostCSS cleans selectors, declaration values and at-rule parameters
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165 | * from comments and extra spaces, but it stores origin content in raws
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166 | * properties. As such, if you don’t change a declaration’s value,
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167 | * PostCSS will use the raw value with comments.
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168 | *
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169 | * ```js
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170 | * const root = postcss.parse('a {\n color:black\n}')
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171 | * root.first.first.raws //=> { before: '\n ', between: ':' }
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172 | * ```
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173 | */
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174 | raws: any
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175 |
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176 | /**
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177 | * @param defaults Value for node properties.
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178 | */
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179 | constructor(defaults?: object)
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180 |
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181 | /**
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182 | * Returns a `CssSyntaxError` instance containing the original position
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183 | * of the node in the source, showing line and column numbers and also
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184 | * a small excerpt to facilitate debugging.
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185 | *
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186 | * If present, an input source map will be used to get the original position
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187 | * of the source, even from a previous compilation step
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188 | * (e.g., from Sass compilation).
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189 | *
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190 | * This method produces very useful error messages.
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191 | *
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192 | * ```js
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193 | * if (!variables[name]) {
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194 | * throw decl.error(`Unknown variable ${name}`, { word: name })
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195 | * // CssSyntaxError: postcss-vars:a.sass:4:3: Unknown variable $black
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196 | * // color: $black
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197 | * // a
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198 | * // ^
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199 | * // background: white
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200 | * }
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201 | * ```
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202 | *
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203 | * @param message Error description.
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204 | * @param opts Options.
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205 | *
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206 | * @return Error object to throw it.
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207 | */
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208 | error(message: string, options?: NodeErrorOptions): CssSyntaxError
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209 |
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210 | /**
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211 | * This method is provided as a convenience wrapper for `Result#warn`.
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212 | *
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213 | * ```js
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214 | * Declaration: {
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215 | * bad: (decl, { result }) => {
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216 | * decl.warn(result, 'Deprecated property bad')
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217 | * }
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218 | * }
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219 | * ```
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220 | *
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221 | * @param result The `Result` instance that will receive the warning.
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222 | * @param text Warning message.
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223 | * @param opts Warning Options.
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224 | *
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225 | * @return Created warning object.
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226 | */
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227 | warn(result: Result, text: string, opts?: WarningOptions): void
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228 |
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229 | /**
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230 | * Removes the node from its parent and cleans the parent properties
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231 | * from the node and its children.
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232 | *
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233 | * ```js
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234 | * if (decl.prop.match(/^-webkit-/)) {
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235 | * decl.remove()
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236 | * }
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237 | * ```
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238 | *
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239 | * @return Node to make calls chain.
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240 | */
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241 | remove(): this
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242 |
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243 | /**
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244 | * Returns a CSS string representing the node.
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245 | *
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246 | * ```js
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247 | * new Rule({ selector: 'a' }).toString() //=> "a {}"
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248 | * ```
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249 | *
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250 | * @param stringifier A syntax to use in string generation.
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251 | * @return CSS string of this node.
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252 | */
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253 | toString(stringifier?: Stringifier | Syntax): string
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254 |
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255 | /**
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256 | * Assigns properties to the current node.
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257 | *
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258 | * ```js
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259 | * decl.assign({ prop: 'word-wrap', value: 'break-word' })
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260 | * ```
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261 | *
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262 | * @param overrides New properties to override the node.
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263 | * @return Current node to methods chain.
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264 | */
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265 | assign(overrides: object): this
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266 |
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267 | /**
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268 | * Returns an exact clone of the node.
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269 | *
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270 | * The resulting cloned node and its (cloned) children will retain
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271 | * code style properties.
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272 | *
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273 | * ```js
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274 | * decl.raws.before //=> "\n "
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275 | * const cloned = decl.clone({ prop: '-moz-' + decl.prop })
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276 | * cloned.raws.before //=> "\n "
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277 | * cloned.toString() //=> -moz-transform: scale(0)
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278 | * ```
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279 | *
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280 | * @param overrides New properties to override in the clone.
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281 | * @return Clone of the node.
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282 | */
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283 | clone(overrides?: object): this
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284 |
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285 | /**
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286 | * Shortcut to clone the node and insert the resulting cloned node
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287 | * before the current node.
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288 | *
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289 | * ```js
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290 | * decl.cloneBefore({ prop: '-moz-' + decl.prop })
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291 | * ```
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292 | *
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293 | * @param overrides Mew properties to override in the clone.
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294 | *
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295 | * @return New node
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296 | */
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297 | cloneBefore(overrides?: object): this
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298 |
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299 | /**
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300 | * Shortcut to clone the node and insert the resulting cloned node
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301 | * after the current node.
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302 | *
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303 | * @param overrides New properties to override in the clone.
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304 | * @return New node.
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305 | */
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306 | cloneAfter(overrides?: object): this
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307 |
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308 | /**
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309 | * Inserts node(s) before the current node and removes the current node.
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310 | *
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311 | * ```js
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312 | * AtRule: {
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313 | * mixin: atrule => {
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314 | * atrule.replaceWith(mixinRules[atrule.params])
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315 | * }
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316 | * }
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317 | * ```
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318 | *
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319 | * @param nodes Mode(s) to replace current one.
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320 | * @return Current node to methods chain.
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321 | */
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322 | replaceWith(
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323 | ...nodes: (ChildNode | ChildProps | ChildNode[] | ChildProps[])[]
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324 | ): this
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325 |
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326 | /**
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327 | * Returns the next child of the node’s parent.
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328 | * Returns `undefined` if the current node is the last child.
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329 | *
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330 | * ```js
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331 | * if (comment.text === 'delete next') {
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332 | * const next = comment.next()
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333 | * if (next) {
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334 | * next.remove()
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335 | * }
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336 | * }
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337 | * ```
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338 | *
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339 | * @return Next node.
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340 | */
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341 | next(): ChildNode | undefined
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342 |
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343 | /**
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344 | * Returns the previous child of the node’s parent.
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345 | * Returns `undefined` if the current node is the first child.
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346 | *
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347 | * ```js
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348 | * const annotation = decl.prev()
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349 | * if (annotation.type === 'comment') {
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350 | * readAnnotation(annotation.text)
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351 | * }
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352 | * ```
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353 | *
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354 | * @return Previous node.
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355 | */
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356 | prev(): ChildNode | undefined
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357 |
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358 | /**
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359 | * Insert new node before current node to current node’s parent.
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360 | *
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361 | * Just alias for `node.parent.insertBefore(node, add)`.
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362 | *
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363 | * ```js
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364 | * decl.before('content: ""')
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365 | * ```
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366 | *
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367 | * @param newNode New node.
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368 | * @return This node for methods chain.
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369 | */
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370 | before(newNode: Node | ChildProps | string | Node[]): this
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371 |
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372 | /**
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373 | * Insert new node after current node to current node’s parent.
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374 | *
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375 | * Just alias for `node.parent.insertAfter(node, add)`.
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376 | *
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377 | * ```js
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378 | * decl.after('color: black')
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379 | * ```
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380 | *
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381 | * @param newNode New node.
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382 | * @return This node for methods chain.
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383 | */
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384 | after(newNode: Node | ChildProps | string | Node[]): this
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385 |
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386 | /**
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387 | * Finds the Root instance of the node’s tree.
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388 | *
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389 | * ```js
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390 | * root.nodes[0].nodes[0].root() === root
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391 | * ```
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392 | *
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393 | * @return Root parent.
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394 | */
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395 | root(): Root
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396 |
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397 | /**
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398 | * Returns a `Node#raws` value. If the node is missing
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399 | * the code style property (because the node was manually built or cloned),
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400 | * PostCSS will try to autodetect the code style property by looking
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401 | * at other nodes in the tree.
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402 | *
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403 | * ```js
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404 | * const root = postcss.parse('a { background: white }')
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405 | * root.nodes[0].append({ prop: 'color', value: 'black' })
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406 | * root.nodes[0].nodes[1].raws.before //=> undefined
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407 | * root.nodes[0].nodes[1].raw('before') //=> ' '
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408 | * ```
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409 | *
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410 | * @param prop Name of code style property.
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411 | * @param defaultType Name of default value, it can be missed
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412 | * if the value is the same as prop.
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413 | * @return {string} Code style value.
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414 | */
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415 | raw(prop: string, defaultType?: string): string
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416 |
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417 | /**
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418 | * Clear the code style properties for the node and its children.
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419 | *
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420 | * ```js
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421 | * node.raws.before //=> ' '
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422 | * node.cleanRaws()
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423 | * node.raws.before //=> undefined
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424 | * ```
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425 | *
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426 | * @param keepBetween Keep the `raws.between` symbols.
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427 | */
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428 | cleanRaws(keepBetween?: boolean): void
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429 |
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430 | /**
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431 | * Fix circular links on `JSON.stringify()`.
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432 | *
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433 | * @return Cleaned object.
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434 | */
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435 | toJSON(): object
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436 |
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437 | /**
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438 | * Convert string index to line/column.
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439 | *
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440 | * @param index The symbol number in the node’s string.
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441 | * @return Symbol position in file.
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442 | */
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443 | positionInside(index: number): Position
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444 | }
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