From bbff7403fbf46f9ad92240ac213df8d30ef31b64 Mon Sep 17 00:00:00 2001 From: Florian Dold Date: Thu, 20 Sep 2018 02:56:13 +0200 Subject: update packages --- .../lib/optimize/AggressiveMergingPlugin.js | 202 +++++++++------------ 1 file changed, 87 insertions(+), 115 deletions(-) (limited to 'node_modules/webpack/lib/optimize/AggressiveMergingPlugin.js') diff --git a/node_modules/webpack/lib/optimize/AggressiveMergingPlugin.js b/node_modules/webpack/lib/optimize/AggressiveMergingPlugin.js index dc14ac300..e3a4c37ee 100644 --- a/node_modules/webpack/lib/optimize/AggressiveMergingPlugin.js +++ b/node_modules/webpack/lib/optimize/AggressiveMergingPlugin.js @@ -1,115 +1,87 @@ -/* - MIT License http://www.opensource.org/licenses/mit-license.php - Author Tobias Koppers @sokra -*/ -"use strict"; - -class AggressiveMergingPlugin { - constructor(options) { - if(options !== undefined && typeof options !== "object" || Array.isArray(options)) { - throw new Error("Argument should be an options object. To use defaults, pass in nothing.\nFor more info on options, see https://webpack.js.org/plugins/"); - } - this.options = options || {}; - } - - apply(compiler) { - const options = this.options; - const minSizeReduce = options.minSizeReduce || 1.5; - - function getParentsWeight(chunk) { - return chunk.parents.map((p) => { - return p.isInitial() ? options.entryChunkMultiplicator || 10 : 1; - }).reduce((a, b) => { - return a + b; - }, 0); - } - compiler.plugin("this-compilation", (compilation) => { - compilation.plugin("optimize-chunks-advanced", (chunks) => { - let combinations = []; - chunks.forEach((a, idx) => { - if(a.isInitial()) return; - for(let i = 0; i < idx; i++) { - const b = chunks[i]; - if(b.isInitial()) continue; - combinations.push({ - a, - b, - improvement: undefined - }); - } - }); - - combinations.forEach((pair) => { - const a = pair.b.size({ - chunkOverhead: 0 - }); - const b = pair.a.size({ - chunkOverhead: 0 - }); - const ab = pair.b.integratedSize(pair.a, { - chunkOverhead: 0 - }); - let newSize; - if(ab === false) { - pair.improvement = false; - return; - } else if(options.moveToParents) { - const aOnly = ab - b; - const bOnly = ab - a; - const common = a + b - ab; - newSize = common + getParentsWeight(pair.b) * aOnly + getParentsWeight(pair.a) * bOnly; - } else { - newSize = ab; - } - - pair.improvement = (a + b) / newSize; - }); - combinations = combinations.filter((pair) => { - return pair.improvement !== false; - }); - combinations.sort((a, b) => { - return b.improvement - a.improvement; - }); - - const pair = combinations[0]; - - if(!pair) return; - if(pair.improvement < minSizeReduce) return; - - if(options.moveToParents) { - const commonModules = pair.b.modules.filter((m) => { - return pair.a.modules.indexOf(m) >= 0; - }); - const aOnlyModules = pair.b.modules.filter((m) => { - return commonModules.indexOf(m) < 0; - }); - const bOnlyModules = pair.a.modules.filter((m) => { - return commonModules.indexOf(m) < 0; - }); - aOnlyModules.forEach((m) => { - pair.b.removeModule(m); - m.removeChunk(pair.b); - pair.b.parents.forEach((c) => { - c.addModule(m); - m.addChunk(c); - }); - }); - bOnlyModules.forEach((m) => { - pair.a.removeModule(m); - m.removeChunk(pair.a); - pair.a.parents.forEach((c) => { - c.addModule(m); - m.addChunk(c); - }); - }); - } - if(pair.b.integrate(pair.a, "aggressive-merge")) { - chunks.splice(chunks.indexOf(pair.a), 1); - return true; - } - }); - }); - } -} - -module.exports = AggressiveMergingPlugin; +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Tobias Koppers @sokra +*/ +"use strict"; + +class AggressiveMergingPlugin { + constructor(options) { + if ( + (options !== undefined && typeof options !== "object") || + Array.isArray(options) + ) { + throw new Error( + "Argument should be an options object. To use defaults, pass in nothing.\nFor more info on options, see https://webpack.js.org/plugins/" + ); + } + this.options = options || {}; + } + + apply(compiler) { + const options = this.options; + const minSizeReduce = options.minSizeReduce || 1.5; + + compiler.hooks.thisCompilation.tap( + "AggressiveMergingPlugin", + compilation => { + compilation.hooks.optimizeChunksAdvanced.tap( + "AggressiveMergingPlugin", + chunks => { + let combinations = []; + chunks.forEach((a, idx) => { + if (a.canBeInitial()) return; + for (let i = 0; i < idx; i++) { + const b = chunks[i]; + if (b.canBeInitial()) continue; + combinations.push({ + a, + b, + improvement: undefined + }); + } + }); + + for (const pair of combinations) { + const a = pair.b.size({ + chunkOverhead: 0 + }); + const b = pair.a.size({ + chunkOverhead: 0 + }); + const ab = pair.b.integratedSize(pair.a, { + chunkOverhead: 0 + }); + let newSize; + if (ab === false) { + pair.improvement = false; + return; + } else { + newSize = ab; + } + + pair.improvement = (a + b) / newSize; + } + combinations = combinations.filter(pair => { + return pair.improvement !== false; + }); + combinations.sort((a, b) => { + return b.improvement - a.improvement; + }); + + const pair = combinations[0]; + + if (!pair) return; + if (pair.improvement < minSizeReduce) return; + + if (pair.b.integrate(pair.a, "aggressive-merge")) { + chunks.splice(chunks.indexOf(pair.a), 1); + return true; + } + } + ); + } + ); + } +} + +module.exports = AggressiveMergingPlugin; -- cgit v1.2.3