diff options
Diffstat (limited to 'node_modules/webpack-sources/lib/helpers/createMappingsSerializer.js')
| -rw-r--r-- | node_modules/webpack-sources/lib/helpers/createMappingsSerializer.js | 206 |
1 files changed, 0 insertions, 206 deletions
diff --git a/node_modules/webpack-sources/lib/helpers/createMappingsSerializer.js b/node_modules/webpack-sources/lib/helpers/createMappingsSerializer.js deleted file mode 100644 index 8dafe438..00000000 --- a/node_modules/webpack-sources/lib/helpers/createMappingsSerializer.js +++ /dev/null @@ -1,206 +0,0 @@ -/* - MIT License http://www.opensource.org/licenses/mit-license.php - Author Tobias Koppers @sokra -*/ - -"use strict"; - -const ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".split( - "" -); - -const CONTINUATION_BIT = 0x20; - -const createMappingsSerializer = options => { - const linesOnly = options && options.columns === false; - return linesOnly - ? createLinesOnlyMappingsSerializer() - : createFullMappingsSerializer(); -}; - -const createFullMappingsSerializer = () => { - let currentLine = 1; - let currentColumn = 0; - let currentSourceIndex = 0; - let currentOriginalLine = 1; - let currentOriginalColumn = 0; - let currentNameIndex = 0; - let activeMapping = false; - let activeName = false; - let initial = true; - return ( - generatedLine, - generatedColumn, - sourceIndex, - originalLine, - originalColumn, - nameIndex - ) => { - if (activeMapping && currentLine === generatedLine) { - // A mapping is still active - if ( - sourceIndex === currentSourceIndex && - originalLine === currentOriginalLine && - originalColumn === currentOriginalColumn && - !activeName && - nameIndex < 0 - ) { - // avoid repeating the same original mapping - return ""; - } - } else { - // No mapping is active - if (sourceIndex < 0) { - // avoid writing unneccessary generated mappings - return ""; - } - } - - let str; - if (currentLine < generatedLine) { - str = ";".repeat(generatedLine - currentLine); - currentLine = generatedLine; - currentColumn = 0; - initial = false; - } else if (initial) { - str = ""; - initial = false; - } else { - str = ","; - } - - const writeValue = value => { - const sign = (value >>> 31) & 1; - const mask = value >> 31; - const absValue = (value + mask) ^ mask; - let data = (absValue << 1) | sign; - for (;;) { - const sextet = data & 0x1f; - data >>= 5; - if (data === 0) { - str += ALPHABET[sextet]; - break; - } else { - str += ALPHABET[sextet | CONTINUATION_BIT]; - } - } - }; - writeValue(generatedColumn - currentColumn); - currentColumn = generatedColumn; - if (sourceIndex >= 0) { - activeMapping = true; - if (sourceIndex === currentSourceIndex) { - str += "A"; - } else { - writeValue(sourceIndex - currentSourceIndex); - currentSourceIndex = sourceIndex; - } - writeValue(originalLine - currentOriginalLine); - currentOriginalLine = originalLine; - if (originalColumn === currentOriginalColumn) { - str += "A"; - } else { - writeValue(originalColumn - currentOriginalColumn); - currentOriginalColumn = originalColumn; - } - if (nameIndex >= 0) { - writeValue(nameIndex - currentNameIndex); - currentNameIndex = nameIndex; - activeName = true; - } else { - activeName = false; - } - } else { - activeMapping = false; - } - return str; - }; -}; - -const createLinesOnlyMappingsSerializer = () => { - let lastWrittenLine = 0; - let currentLine = 1; - let currentSourceIndex = 0; - let currentOriginalLine = 1; - return ( - generatedLine, - _generatedColumn, - sourceIndex, - originalLine, - _originalColumn, - _nameIndex - ) => { - if (sourceIndex < 0) { - // avoid writing generated mappings at all - return ""; - } - if (lastWrittenLine === generatedLine) { - // avoid writing multiple original mappings per line - return ""; - } - let str; - const writeValue = value => { - const sign = (value >>> 31) & 1; - const mask = value >> 31; - const absValue = (value + mask) ^ mask; - let data = (absValue << 1) | sign; - for (;;) { - const sextet = data & 0x1f; - data >>= 5; - if (data === 0) { - str += ALPHABET[sextet]; - break; - } else { - str += ALPHABET[sextet | CONTINUATION_BIT]; - } - } - }; - lastWrittenLine = generatedLine; - if (generatedLine === currentLine + 1) { - currentLine = generatedLine; - if (sourceIndex === currentSourceIndex) { - currentSourceIndex = sourceIndex; - if (originalLine === currentOriginalLine + 1) { - currentOriginalLine = originalLine; - return ";AACA"; - } else { - str = ";AA"; - writeValue(originalLine - currentOriginalLine); - currentOriginalLine = originalLine; - return str + "A"; - } - } else { - str = ";A"; - writeValue(sourceIndex - currentSourceIndex); - currentSourceIndex = sourceIndex; - writeValue(originalLine - currentOriginalLine); - currentOriginalLine = originalLine; - return str + "A"; - } - } else { - str = ";".repeat(generatedLine - currentLine); - currentLine = generatedLine; - if (sourceIndex === currentSourceIndex) { - currentSourceIndex = sourceIndex; - if (originalLine === currentOriginalLine + 1) { - currentOriginalLine = originalLine; - return str + "AACA"; - } else { - str += "AA"; - writeValue(originalLine - currentOriginalLine); - currentOriginalLine = originalLine; - return str + "A"; - } - } else { - str += "A"; - writeValue(sourceIndex - currentSourceIndex); - currentSourceIndex = sourceIndex; - writeValue(originalLine - currentOriginalLine); - currentOriginalLine = originalLine; - return str + "A"; - } - } - }; -}; - -module.exports = createMappingsSerializer; |
