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node_modules/webpack/lib/optimize/RemoveEmptyChunksPlugin.js
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1lostsun
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05 май 2025, 11:35
05 май 2025, 11:35
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/* MIT License http://www.opensource.org/licenses/mit-license.php Author Tobias Koppers @sokra */ "use strict"; const { STAGE_BASIC, STAGE_ADVANCED } = require("../OptimizationStages"); /** @typedef {import("../Chunk")} Chunk */ /** @typedef {import("../Compiler")} Compiler */ const PLUGIN_NAME = "RemoveEmptyChunksPlugin"; class RemoveEmptyChunksPlugin { /** * Apply the plugin * @param {Compiler} compiler the compiler instance * @returns {void} */ apply(compiler) { compiler.hooks.compilation.tap(PLUGIN_NAME, compilation => { /** * @param {Iterable<Chunk>} chunks the chunks array * @returns {void} */ const handler = chunks => { const chunkGraph = compilation.chunkGraph; for (const chunk of chunks) { if ( chunkGraph.getNumberOfChunkModules(chunk) === 0 && !chunk.hasRuntime() && chunkGraph.getNumberOfEntryModules(chunk) === 0 ) { compilation.chunkGraph.disconnectChunk(chunk); compilation.chunks.delete(chunk); } } }; // TODO do it once compilation.hooks.optimizeChunks.tap( { name: PLUGIN_NAME, stage: STAGE_BASIC }, handler ); compilation.hooks.optimizeChunks.tap( { name: PLUGIN_NAME, stage: STAGE_ADVANCED }, handler ); }); } } module.exports = RemoveEmptyChunksPlugin;