Initial commit

node_modules/next/dist/esm/build/webpack/plugins/next-drop-client-page-plugin.js

@@ -0,0 +1,64 @@
+import { STRING_LITERAL_DROP_BUNDLE } from '../../../shared/lib/constants';
+export const ampFirstEntryNamesMap = new WeakMap();
+const PLUGIN_NAME = 'DropAmpFirstPagesPlugin';
+// Prevents outputting client pages when they are not needed
+export class DropClientPage {
+    apply(compiler) {
+        compiler.hooks.compilation.tap(PLUGIN_NAME, (compilation, { normalModuleFactory })=>{
+            // Recursively look up the issuer till it ends up at the root
+            function findEntryModule(mod) {
+                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) {
+                function markAsAmpFirst() {
+                    const entryModule = findEntryModule(parser.state.module);
+                    if (!entryModule) {
+                        return;
+                    }
+                    // @ts-ignore buildInfo exists on Module
+                    entryModule.buildInfo.NEXT_ampFirst = true;
+                }
+                parser.hooks.preDeclarator.tap(PLUGIN_NAME, (declarator)=>{
+                    var _declarator_id;
+                    if ((declarator == null ? void 0 : (_declarator_id = declarator.id) == null ? void 0 : _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);
+            compilation.hooks.seal.tap(PLUGIN_NAME, ()=>{
+                for (const [name, entryData] of compilation.entries){
+                    for (const dependency of entryData.dependencies){
+                        var _module_buildInfo;
+                        const module = compilation.moduleGraph.getModule(dependency);
+                        if (module == null ? void 0 : (_module_buildInfo = module.buildInfo) == null ? void 0 : _module_buildInfo.NEXT_ampFirst) {
+                            ampFirstEntryNamesItem.push(name);
+                            compilation.entries.delete(name);
+                        }
+                    }
+                }
+            });
+        });
+    }
+    constructor(){
+        this.ampPages = new Set();
+    }
+}
+
+//# sourceMappingURL=next-drop-client-page-plugin.js.map