getFromStreamChunks.js
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/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const createMappingsSerializer = require("./createMappingsSerializer");
exports.getSourceAndMap = (inputSource, options) => {
let code = "";
let mappings = "";
let sources = [];
let sourcesContent = [];
let names = [];
const addMapping = createMappingsSerializer(options);
const { source } = inputSource.streamChunks(
Object.assign({}, options, { finalSource: true }),
(
chunk,
generatedLine,
generatedColumn,
sourceIndex,
originalLine,
originalColumn,
nameIndex
) => {
if (chunk !== undefined) code += chunk;
mappings += addMapping(
generatedLine,
generatedColumn,
sourceIndex,
originalLine,
originalColumn,
nameIndex
);
},
(sourceIndex, source, sourceContent) => {
while (sources.length < sourceIndex) {
sources.push(null);
}
sources[sourceIndex] = source;
if (sourceContent !== undefined) {
while (sourcesContent.length < sourceIndex) {
sourcesContent.push(null);
}
sourcesContent[sourceIndex] = sourceContent;
}
},
(nameIndex, name) => {
while (names.length < nameIndex) {
names.push(null);
}
names[nameIndex] = name;
}
);
return {
source: source !== undefined ? source : code,
map:
mappings.length > 0
? {
version: 3,
file: "x",
mappings,
sources,
sourcesContent:
sourcesContent.length > 0 ? sourcesContent : undefined,
names
}
: null
};
};
exports.getMap = (source, options) => {
let mappings = "";
let sources = [];
let sourcesContent = [];
let names = [];
const addMapping = createMappingsSerializer(options);
source.streamChunks(
Object.assign({}, options, { source: false, finalSource: true }),
(
chunk,
generatedLine,
generatedColumn,
sourceIndex,
originalLine,
originalColumn,
nameIndex
) => {
mappings += addMapping(
generatedLine,
generatedColumn,
sourceIndex,
originalLine,
originalColumn,
nameIndex
);
},
(sourceIndex, source, sourceContent) => {
while (sources.length < sourceIndex) {
sources.push(null);
}
sources[sourceIndex] = source;
if (sourceContent !== undefined) {
while (sourcesContent.length < sourceIndex) {
sourcesContent.push(null);
}
sourcesContent[sourceIndex] = sourceContent;
}
},
(nameIndex, name) => {
while (names.length < nameIndex) {
names.push(null);
}
names[nameIndex] = name;
}
);
return mappings.length > 0
? {
version: 3,
file: "x",
mappings,
sources,
sourcesContent: sourcesContent.length > 0 ? sourcesContent : undefined,
names
}
: null;
};