next.js

14ef9c39 - fix: guard all require('node:stream') with NEXT_RUNTIME if/else for edge DCE

fix: guard all require('node:stream') with NEXT_RUNTIME if/else for edge DCE Webpack only eliminates require() calls inside if/else branches where DefinePlugin can evaluate the condition. A throw-then-require pattern does NOT work: webpack doesn't do control flow analysis for throws. The canary pattern that works: if (process.env.NEXT_RUNTIME === 'edge') { throw new Error(...) } else { const { Readable } = require('node:stream') // DCE'd for edge } The pattern that breaks: if (process.env.NEXT_RUNTIME === 'edge') { throw new Error(...) } const { Readable } = require('node:stream') // NOT DCE'd Applied the if/else pattern to all require('node:stream') callsites in: - app-render.tsx (createRuntimePrefetchNodeTransform, PassThrough usage) - app-render-prerender-utils.ts (tee, createClosingNodeStream, createUnclosingNodeStream, processNodePrelude) - use-flight-response.tsx (createInlinedDataNodeStream) - stream-ops.ts (createPendingStream) Also converted stream-ops.ts exports from module-level ternaries to lazy function wrappers (module-scope requires are resolved before DCE).