webpack/lib/optimize/FlagIncludedChunksPlugin.js

36 lines
1.0 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
class FlagIncludedChunksPlugin {
apply(compiler) {
compiler.hooks.compilation.tap("FlagIncludedChunksPlugin", (compilation) => {
compilation.hooks.optimizeChunkIds.tap("FlagIncludedChunksPlugin", (chunks) => {
for(const chunkA of chunks) {
loopB: for(const chunkB of chunks) {
// as we iterate the same iterables twice
// skip if we find ourselves
if(chunkA === chunkB) continue loopB;
// instead of swapping A and B just bail
// as we loop twice the current A will be B and B then A
if(chunkA.getNumberOfModules() < chunkB.getNumberOfModules()) continue loopB;
if(chunkB.getNumberOfModules() === 0) continue loopB;
// is chunkB in chunkA?
for(const m of chunkB.modulesIterable) {
if(!chunkA.containsModule(m)) continue loopB;
}
chunkA.ids.push(chunkB.id);
}
}
});
});
}
}
module.exports = FlagIncludedChunksPlugin;