Tim van der Lippe | 16b8228 | 2021-11-08 13:50:26 +0000 | [diff] [blame] | 1 | import Result, { Message, ResultOptions } from './result.js' |
| 2 | import { SourceMap } from './postcss.js' |
| 3 | import Processor from './processor.js' |
| 4 | import Warning from './warning.js' |
| 5 | import Root from './root.js' |
| 6 | |
| 7 | /** |
| 8 | * A Promise proxy for the result of PostCSS transformations. |
| 9 | * |
| 10 | * A `LazyResult` instance is returned by `Processor#process`. |
| 11 | * |
| 12 | * ```js |
| 13 | * const lazy = postcss([autoprefixer]).process(css) |
| 14 | * ``` |
| 15 | */ |
| 16 | export default class LazyResult implements PromiseLike<Result> { |
| 17 | /** |
| 18 | * Processes input CSS through synchronous and asynchronous plugins |
| 19 | * and calls `onFulfilled` with a Result instance. If a plugin throws |
| 20 | * an error, the `onRejected` callback will be executed. |
| 21 | * |
| 22 | * It implements standard Promise API. |
| 23 | * |
| 24 | * ```js |
| 25 | * postcss([autoprefixer]).process(css, { from: cssPath }).then(result => { |
| 26 | * console.log(result.css) |
| 27 | * }) |
| 28 | * ``` |
| 29 | */ |
| 30 | then: Promise<Result>['then'] |
| 31 | |
| 32 | /** |
| 33 | * Processes input CSS through synchronous and asynchronous plugins |
| 34 | * and calls onRejected for each error thrown in any plugin. |
| 35 | * |
| 36 | * It implements standard Promise API. |
| 37 | * |
| 38 | * ```js |
| 39 | * postcss([autoprefixer]).process(css).then(result => { |
| 40 | * console.log(result.css) |
| 41 | * }).catch(error => { |
| 42 | * console.error(error) |
| 43 | * }) |
| 44 | * ``` |
| 45 | */ |
| 46 | catch: Promise<Result>['catch'] |
| 47 | |
| 48 | /** |
| 49 | * Processes input CSS through synchronous and asynchronous plugins |
| 50 | * and calls onFinally on any error or when all plugins will finish work. |
| 51 | * |
| 52 | * It implements standard Promise API. |
| 53 | * |
| 54 | * ```js |
| 55 | * postcss([autoprefixer]).process(css).finally(() => { |
| 56 | * console.log('processing ended') |
| 57 | * }) |
| 58 | * ``` |
| 59 | */ |
| 60 | finally: Promise<Result>['finally'] |
| 61 | |
| 62 | /** |
| 63 | * @param processor Processor used for this transformation. |
| 64 | * @param css CSS to parse and transform. |
| 65 | * @param opts Options from the `Processor#process` or `Root#toResult`. |
| 66 | */ |
| 67 | constructor(processor: Processor, css: string, opts: ResultOptions) |
| 68 | |
| 69 | /** |
| 70 | * Returns the default string description of an object. |
| 71 | * Required to implement the Promise interface. |
| 72 | */ |
| 73 | get [Symbol.toStringTag](): string |
| 74 | |
| 75 | /** |
| 76 | * Returns a `Processor` instance, which will be used |
| 77 | * for CSS transformations. |
| 78 | */ |
| 79 | get processor(): Processor |
| 80 | |
| 81 | /** |
| 82 | * Options from the `Processor#process` call. |
| 83 | */ |
| 84 | get opts(): ResultOptions |
| 85 | |
| 86 | /** |
| 87 | * Processes input CSS through synchronous plugins, converts `Root` |
| 88 | * to a CSS string and returns `Result#css`. |
| 89 | * |
| 90 | * This property will only work with synchronous plugins. |
| 91 | * If the processor contains any asynchronous plugins |
| 92 | * it will throw an error. This is why this method is only |
| 93 | * for debug purpose, you should always use `LazyResult#then`. |
| 94 | */ |
| 95 | get css(): string |
| 96 | |
| 97 | /** |
| 98 | * An alias for the `css` property. Use it with syntaxes |
| 99 | * that generate non-CSS output. |
| 100 | * |
| 101 | * This property will only work with synchronous plugins. |
| 102 | * If the processor contains any asynchronous plugins |
| 103 | * it will throw an error. This is why this method is only |
| 104 | * for debug purpose, you should always use `LazyResult#then`. |
| 105 | */ |
| 106 | get content(): string |
| 107 | |
| 108 | /** |
| 109 | * Processes input CSS through synchronous plugins |
| 110 | * and returns `Result#map`. |
| 111 | * |
| 112 | * This property will only work with synchronous plugins. |
| 113 | * If the processor contains any asynchronous plugins |
| 114 | * it will throw an error. This is why this method is only |
| 115 | * for debug purpose, you should always use `LazyResult#then`. |
| 116 | */ |
| 117 | get map(): SourceMap |
| 118 | |
| 119 | /** |
| 120 | * Processes input CSS through synchronous plugins |
| 121 | * and returns `Result#root`. |
| 122 | * |
| 123 | * This property will only work with synchronous plugins. If the processor |
| 124 | * contains any asynchronous plugins it will throw an error. |
| 125 | * |
| 126 | * This is why this method is only for debug purpose, |
| 127 | * you should always use `LazyResult#then`. |
| 128 | */ |
| 129 | get root(): Root |
| 130 | |
| 131 | /** |
| 132 | * Processes input CSS through synchronous plugins |
| 133 | * and returns `Result#messages`. |
| 134 | * |
| 135 | * This property will only work with synchronous plugins. If the processor |
| 136 | * contains any asynchronous plugins it will throw an error. |
| 137 | * |
| 138 | * This is why this method is only for debug purpose, |
| 139 | * you should always use `LazyResult#then`. |
| 140 | */ |
| 141 | get messages(): Message[] |
| 142 | |
| 143 | /** |
| 144 | * Processes input CSS through synchronous plugins |
| 145 | * and calls `Result#warnings`. |
| 146 | * |
| 147 | * @return Warnings from plugins. |
| 148 | */ |
| 149 | warnings(): Warning[] |
| 150 | |
| 151 | /** |
| 152 | * Alias for the `LazyResult#css` property. |
| 153 | * |
| 154 | * ```js |
| 155 | * lazy + '' === lazy.css |
| 156 | * ``` |
| 157 | * |
| 158 | * @return Output CSS. |
| 159 | */ |
| 160 | toString(): string |
| 161 | |
| 162 | /** |
| 163 | * Run plugin in sync way and return `Result`. |
| 164 | * |
| 165 | * @return Result with output content. |
| 166 | */ |
| 167 | sync(): Result |
| 168 | |
| 169 | /** |
| 170 | * Run plugin in async way and return `Result`. |
| 171 | * |
| 172 | * @return Result with output content. |
| 173 | */ |
| 174 | async(): Promise<Result> |
| 175 | } |