webpack/lib/optimize/ChunkModuleIdRangePlugin.js

67 lines
1.5 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const sortByIndex = (a, b) => {
return a.index - b.index;
};
const sortByIndex2 = (a, b) => {
return a.index2 - b.index2;
};
class ChunkModuleIdRangePlugin {
constructor(options) {
this.options = options;
}
apply(compiler) {
const options = this.options;
compiler.hooks.compilation.tap("ChunkModuleIdRangePlugin", compilation => {
compilation.hooks.moduleIds.tap("ChunkModuleIdRangePlugin", modules => {
const chunk = compilation.chunks.find(
chunk => chunk.name === options.name
);
if (!chunk) {
throw new Error(
`ChunkModuleIdRangePlugin: Chunk with name '${options.name}"' was not found`
);
}
let chunkModules;
if (options.order) {
chunkModules = Array.from(chunk.modulesIterable);
switch (options.order) {
case "index":
chunkModules.sort(sortByIndex);
break;
case "index2":
chunkModules.sort(sortByIndex2);
break;
default:
throw new Error(
"ChunkModuleIdRangePlugin: unexpected value of order"
);
}
} else {
chunkModules = modules.filter(m => {
return m.chunksIterable.has(chunk);
});
}
let currentId = options.start || 0;
for (let i = 0; i < chunkModules.length; i++) {
const m = chunkModules[i];
if (m.id === null) {
m.id = currentId++;
}
if (options.end && currentId > options.end) break;
}
});
});
}
}
module.exports = ChunkModuleIdRangePlugin;