You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
56 lines
1.6 KiB
JavaScript
56 lines
1.6 KiB
JavaScript
9 months ago
|
/*
|
||
|
|
MIT License http://www.opensource.org/licenses/mit-license.php
|
||
|
|
*/
|
||
|
|
|
||
|
|
"use strict";
|
||
|
|
|
||
|
|
const RuntimeGlobals = require("../RuntimeGlobals");
|
||
|
|
const RuntimeModule = require("../RuntimeModule");
|
||
|
|
const Template = require("../Template");
|
||
|
|
|
||
|
|
/** @typedef {import("../Chunk")} Chunk */
|
||
|
|
/** @typedef {import("../Compilation")} Compilation */
|
||
|
|
/** @typedef {import("../RuntimeTemplate")} RuntimeTemplate */
|
||
|
|
|
||
|
|
class ChunkPrefetchStartupRuntimeModule extends RuntimeModule {
|
||
|
|
/**
|
||
|
|
* @param {{ onChunks: Chunk[], chunks: Set<Chunk> }[]} startupChunks chunk ids to trigger when chunks are loaded
|
||
|
|
*/
|
||
|
|
constructor(startupChunks) {
|
||
|
|
super("startup prefetch", RuntimeModule.STAGE_TRIGGER);
|
||
|
|
this.startupChunks = startupChunks;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* @returns {string | null} runtime code
|
||
|
|
*/
|
||
|
|
generate() {
|
||
|
|
const { startupChunks } = this;
|
||
|
|
const compilation = /** @type {Compilation} */ (this.compilation);
|
||
|
|
const chunk = /** @type {Chunk} */ (this.chunk);
|
||
|
|
const { runtimeTemplate } = compilation;
|
||
|
|
return Template.asString(
|
||
|
|
startupChunks.map(
|
||
|
|
({ onChunks, chunks }) =>
|
||
|
|
`${RuntimeGlobals.onChunksLoaded}(0, ${JSON.stringify(
|
||
|
|
// This need to include itself to delay execution after this chunk has been fully loaded
|
||
|
|
onChunks.filter(c => c === chunk).map(c => c.id)
|
||
|
|
)}, ${runtimeTemplate.basicFunction(
|
||
|
|
"",
|
||
|
|
chunks.size < 3
|
||
|
|
? Array.from(
|
||
|
|
chunks,
|
||
|
|
c =>
|
||
|
|
`${RuntimeGlobals.prefetchChunk}(${JSON.stringify(c.id)});`
|
||
|
|
)
|
||
|
|
: `${JSON.stringify(Array.from(chunks, c => c.id))}.map(${
|
||
|
|
RuntimeGlobals.prefetchChunk
|
||
|
|
});`
|
||
|
|
)}, 5);`
|
||
|
|
)
|
||
|
|
);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
module.exports = ChunkPrefetchStartupRuntimeModule;
|