[57e58a3] | 1 | 'use strict'
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| 2 |
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| 3 | let { nanoid } = require('nanoid/non-secure')
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| 4 | let { isAbsolute, resolve } = require('path')
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| 5 | let { SourceMapConsumer, SourceMapGenerator } = require('source-map-js')
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| 6 | let { fileURLToPath, pathToFileURL } = require('url')
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| 7 |
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| 8 | let CssSyntaxError = require('./css-syntax-error')
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| 9 | let PreviousMap = require('./previous-map')
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| 10 | let terminalHighlight = require('./terminal-highlight')
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| 11 |
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| 12 | let fromOffsetCache = Symbol('fromOffsetCache')
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| 13 |
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| 14 | let sourceMapAvailable = Boolean(SourceMapConsumer && SourceMapGenerator)
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| 15 | let pathAvailable = Boolean(resolve && isAbsolute)
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| 16 |
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| 17 | class Input {
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| 18 | constructor(css, opts = {}) {
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| 19 | if (
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| 20 | css === null ||
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| 21 | typeof css === 'undefined' ||
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| 22 | (typeof css === 'object' && !css.toString)
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| 23 | ) {
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| 24 | throw new Error(`PostCSS received ${css} instead of CSS string`)
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| 25 | }
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| 26 |
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| 27 | this.css = css.toString()
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| 28 |
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| 29 | if (this.css[0] === '\uFEFF' || this.css[0] === '\uFFFE') {
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| 30 | this.hasBOM = true
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| 31 | this.css = this.css.slice(1)
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| 32 | } else {
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| 33 | this.hasBOM = false
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| 34 | }
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| 35 |
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| 36 | this.document = this.css
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| 37 | if (opts.document) this.document = opts.document.toString()
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| 38 |
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| 39 | if (opts.from) {
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| 40 | if (
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| 41 | !pathAvailable ||
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| 42 | /^\w+:\/\//.test(opts.from) ||
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| 43 | isAbsolute(opts.from)
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| 44 | ) {
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| 45 | this.file = opts.from
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| 46 | } else {
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| 47 | this.file = resolve(opts.from)
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| 48 | }
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| 49 | }
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| 50 |
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| 51 | if (pathAvailable && sourceMapAvailable) {
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| 52 | let map = new PreviousMap(this.css, opts)
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| 53 | if (map.text) {
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| 54 | this.map = map
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| 55 | let file = map.consumer().file
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| 56 | if (!this.file && file) this.file = this.mapResolve(file)
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| 57 | }
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| 58 | }
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| 59 |
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| 60 | if (!this.file) {
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| 61 | this.id = '<input css ' + nanoid(6) + '>'
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| 62 | }
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| 63 | if (this.map) this.map.file = this.from
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| 64 | }
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| 65 |
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| 66 | error(message, line, column, opts = {}) {
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| 67 | let endColumn, endLine, result
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| 68 |
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| 69 | if (line && typeof line === 'object') {
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| 70 | let start = line
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| 71 | let end = column
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| 72 | if (typeof start.offset === 'number') {
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| 73 | let pos = this.fromOffset(start.offset)
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| 74 | line = pos.line
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| 75 | column = pos.col
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| 76 | } else {
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| 77 | line = start.line
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| 78 | column = start.column
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| 79 | }
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| 80 | if (typeof end.offset === 'number') {
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| 81 | let pos = this.fromOffset(end.offset)
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| 82 | endLine = pos.line
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| 83 | endColumn = pos.col
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| 84 | } else {
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| 85 | endLine = end.line
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| 86 | endColumn = end.column
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| 87 | }
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| 88 | } else if (!column) {
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| 89 | let pos = this.fromOffset(line)
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| 90 | line = pos.line
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| 91 | column = pos.col
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| 92 | }
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| 93 |
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| 94 | let origin = this.origin(line, column, endLine, endColumn)
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| 95 | if (origin) {
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| 96 | result = new CssSyntaxError(
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| 97 | message,
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| 98 | origin.endLine === undefined
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| 99 | ? origin.line
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| 100 | : { column: origin.column, line: origin.line },
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| 101 | origin.endLine === undefined
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| 102 | ? origin.column
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| 103 | : { column: origin.endColumn, line: origin.endLine },
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| 104 | origin.source,
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| 105 | origin.file,
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| 106 | opts.plugin
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| 107 | )
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| 108 | } else {
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| 109 | result = new CssSyntaxError(
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| 110 | message,
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| 111 | endLine === undefined ? line : { column, line },
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| 112 | endLine === undefined ? column : { column: endColumn, line: endLine },
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| 113 | this.css,
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| 114 | this.file,
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| 115 | opts.plugin
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| 116 | )
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| 117 | }
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| 118 |
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| 119 | result.input = { column, endColumn, endLine, line, source: this.css }
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| 120 | if (this.file) {
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| 121 | if (pathToFileURL) {
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| 122 | result.input.url = pathToFileURL(this.file).toString()
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| 123 | }
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| 124 | result.input.file = this.file
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| 125 | }
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| 126 |
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| 127 | return result
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| 128 | }
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| 129 |
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| 130 | fromOffset(offset) {
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| 131 | let lastLine, lineToIndex
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| 132 | if (!this[fromOffsetCache]) {
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| 133 | let lines = this.css.split('\n')
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| 134 | lineToIndex = new Array(lines.length)
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| 135 | let prevIndex = 0
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| 136 |
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| 137 | for (let i = 0, l = lines.length; i < l; i++) {
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| 138 | lineToIndex[i] = prevIndex
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| 139 | prevIndex += lines[i].length + 1
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| 140 | }
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| 141 |
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| 142 | this[fromOffsetCache] = lineToIndex
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| 143 | } else {
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| 144 | lineToIndex = this[fromOffsetCache]
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| 145 | }
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| 146 | lastLine = lineToIndex[lineToIndex.length - 1]
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| 147 |
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| 148 | let min = 0
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| 149 | if (offset >= lastLine) {
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| 150 | min = lineToIndex.length - 1
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| 151 | } else {
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| 152 | let max = lineToIndex.length - 2
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| 153 | let mid
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| 154 | while (min < max) {
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| 155 | mid = min + ((max - min) >> 1)
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| 156 | if (offset < lineToIndex[mid]) {
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| 157 | max = mid - 1
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| 158 | } else if (offset >= lineToIndex[mid + 1]) {
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| 159 | min = mid + 1
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| 160 | } else {
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| 161 | min = mid
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| 162 | break
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| 163 | }
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| 164 | }
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| 165 | }
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| 166 | return {
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| 167 | col: offset - lineToIndex[min] + 1,
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| 168 | line: min + 1
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| 169 | }
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| 170 | }
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| 171 |
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| 172 | mapResolve(file) {
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| 173 | if (/^\w+:\/\//.test(file)) {
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| 174 | return file
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| 175 | }
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| 176 | return resolve(this.map.consumer().sourceRoot || this.map.root || '.', file)
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| 177 | }
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| 178 |
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| 179 | origin(line, column, endLine, endColumn) {
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| 180 | if (!this.map) return false
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| 181 | let consumer = this.map.consumer()
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| 182 |
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| 183 | let from = consumer.originalPositionFor({ column, line })
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| 184 | if (!from.source) return false
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| 185 |
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| 186 | let to
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| 187 | if (typeof endLine === 'number') {
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| 188 | to = consumer.originalPositionFor({ column: endColumn, line: endLine })
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| 189 | }
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| 190 |
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| 191 | let fromUrl
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| 192 |
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| 193 | if (isAbsolute(from.source)) {
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| 194 | fromUrl = pathToFileURL(from.source)
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| 195 | } else {
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| 196 | fromUrl = new URL(
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| 197 | from.source,
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| 198 | this.map.consumer().sourceRoot || pathToFileURL(this.map.mapFile)
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| 199 | )
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| 200 | }
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| 201 |
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| 202 | let result = {
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| 203 | column: from.column,
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| 204 | endColumn: to && to.column,
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| 205 | endLine: to && to.line,
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| 206 | line: from.line,
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| 207 | url: fromUrl.toString()
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| 208 | }
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| 209 |
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| 210 | if (fromUrl.protocol === 'file:') {
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| 211 | if (fileURLToPath) {
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| 212 | result.file = fileURLToPath(fromUrl)
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| 213 | } else {
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| 214 | /* c8 ignore next 2 */
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| 215 | throw new Error(`file: protocol is not available in this PostCSS build`)
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| 216 | }
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| 217 | }
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| 218 |
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| 219 | let source = consumer.sourceContentFor(from.source)
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| 220 | if (source) result.source = source
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| 221 |
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| 222 | return result
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| 223 | }
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| 224 |
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| 225 | toJSON() {
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| 226 | let json = {}
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| 227 | for (let name of ['hasBOM', 'css', 'file', 'id']) {
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| 228 | if (this[name] != null) {
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| 229 | json[name] = this[name]
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| 230 | }
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| 231 | }
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| 232 | if (this.map) {
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| 233 | json.map = { ...this.map }
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| 234 | if (json.map.consumerCache) {
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| 235 | json.map.consumerCache = undefined
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| 236 | }
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| 237 | }
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| 238 | return json
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| 239 | }
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| 240 |
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| 241 | get from() {
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| 242 | return this.file || this.id
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| 243 | }
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| 244 | }
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| 245 |
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| 246 | module.exports = Input
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| 247 | Input.default = Input
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| 248 |
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| 249 | if (terminalHighlight && terminalHighlight.registerInput) {
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| 250 | terminalHighlight.registerInput(Input)
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| 251 | }
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