| import type { webpack } from 'next/dist/compiled/webpack/webpack' |
| import { STRING_LITERAL_DROP_BUNDLE } from '../../../shared/lib/constants' |
|
|
| export const ampFirstEntryNamesMap: WeakMap<webpack.Compilation, string[]> = |
| new WeakMap() |
|
|
| const PLUGIN_NAME = 'DropAmpFirstPagesPlugin' |
|
|
| |
| export class DropClientPage implements webpack.WebpackPluginInstance { |
| ampPages = new Set() |
|
|
| apply(compiler: webpack.Compiler) { |
| compiler.hooks.compilation.tap( |
| PLUGIN_NAME, |
| (compilation: any, { normalModuleFactory }: any) => { |
| |
| function findEntryModule(mod: any): webpack.Module | null { |
| const queue = new Set([mod]) |
| for (const module of queue) { |
| const incomingConnections = |
| compilation.moduleGraph.getIncomingConnections(module) |
|
|
| for (const incomingConnection of incomingConnections) { |
| if (!incomingConnection.originModule) return module |
| queue.add(incomingConnection.originModule) |
| } |
| } |
|
|
| return null |
| } |
|
|
| function handler(parser: any) { |
| function markAsAmpFirst() { |
| const entryModule = findEntryModule(parser.state.module) |
|
|
| if (!entryModule) { |
| return |
| } |
|
|
| |
| entryModule.buildInfo.NEXT_ampFirst = true |
| } |
|
|
| parser.hooks.preDeclarator.tap(PLUGIN_NAME, (declarator: any) => { |
| if (declarator?.id?.name === STRING_LITERAL_DROP_BUNDLE) { |
| markAsAmpFirst() |
| } |
| }) |
| } |
|
|
| normalModuleFactory.hooks.parser |
| .for('javascript/auto') |
| .tap(PLUGIN_NAME, handler) |
|
|
| normalModuleFactory.hooks.parser |
| .for('javascript/esm') |
| .tap(PLUGIN_NAME, handler) |
|
|
| normalModuleFactory.hooks.parser |
| .for('javascript/dynamic') |
| .tap(PLUGIN_NAME, handler) |
|
|
| if (!ampFirstEntryNamesMap.has(compilation)) { |
| ampFirstEntryNamesMap.set(compilation, []) |
| } |
|
|
| const ampFirstEntryNamesItem = ampFirstEntryNamesMap.get( |
| compilation |
| ) as string[] |
|
|
| compilation.hooks.seal.tap(PLUGIN_NAME, () => { |
| for (const [name, entryData] of compilation.entries) { |
| for (const dependency of entryData.dependencies) { |
| const module = compilation.moduleGraph.getModule(dependency) |
| if (module?.buildInfo?.NEXT_ampFirst) { |
| ampFirstEntryNamesItem.push(name) |
| compilation.entries.delete(name) |
| } |
| } |
| } |
| }) |
| } |
| ) |
| } |
| } |
|
|
