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57 lines
1.3 KiB
57 lines
1.3 KiB
/* |
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MIT License http://www.opensource.org/licenses/mit-license.php |
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Author Tobias Koppers @sokra |
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*/ |
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"use strict"; |
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const { STAGE_BASIC, STAGE_ADVANCED } = require("../OptimizationStages"); |
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/** @typedef {import("../Chunk")} Chunk */ |
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/** @typedef {import("../Compiler")} Compiler */ |
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class RemoveEmptyChunksPlugin { |
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/** |
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* Apply the plugin |
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* @param {Compiler} compiler the compiler instance |
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* @returns {void} |
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*/ |
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apply(compiler) { |
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compiler.hooks.compilation.tap("RemoveEmptyChunksPlugin", compilation => { |
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/** |
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* @param {Iterable<Chunk>} chunks the chunks array |
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* @returns {void} |
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*/ |
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const handler = chunks => { |
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const chunkGraph = compilation.chunkGraph; |
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for (const chunk of chunks) { |
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if ( |
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chunkGraph.getNumberOfChunkModules(chunk) === 0 && |
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!chunk.hasRuntime() && |
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chunkGraph.getNumberOfEntryModules(chunk) === 0 |
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) { |
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compilation.chunkGraph.disconnectChunk(chunk); |
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compilation.chunks.delete(chunk); |
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} |
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} |
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}; |
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// TODO do it once |
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compilation.hooks.optimizeChunks.tap( |
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{ |
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name: "RemoveEmptyChunksPlugin", |
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stage: STAGE_BASIC |
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}, |
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handler |
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); |
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compilation.hooks.optimizeChunks.tap( |
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{ |
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name: "RemoveEmptyChunksPlugin", |
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stage: STAGE_ADVANCED |
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}, |
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handler |
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); |
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}); |
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} |
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} |
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module.exports = RemoveEmptyChunksPlugin;
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