Merge train: #9624 #9625 (Bun Transpiler/build, serve) + 3 gate fixes

[proggeramlug]

Lands #9624 (Bun runtime Transpiler + build subset) and #9625 (Bun serve over native HTTP).

Nine conflicts against the just-landed #9621/#9622 tables, resolved as unions with each authors entries preserved: the expr_new/member.rs guard admits Transpiler alongside Glob/Terminal; the arity match arms were hand-merged; serves NativeModSig signature was taken from #9625s own file and confirmed to match the shared trailing args/ret before merging (a blind union would have given it Transpilers). All 9 methods across the three Bun PRs are present in the native table.

Three gate findings fixed, all real:

• fix(runtime): #9192 — an array with a non-array [[Prototype]] inherited nothing (47 divergences from node → 19) #9219 shape: raw_heap_address in perry-ext-typescript used a bare >= 0x10000 floor, which admits the fetch/zlib/proxy handle bands — real addresses on Linux, hidden on macOS. Raised to the band top; the crate links only perry-ffi, so the constant is a documented mirror with a justified addr_class_allowlist.txt entry.
• array_from_values held its pending values as raw addresses across js_array_push calls that can collect — array and values now rooted through TransientRootScope. (The gate refused a new baseline entry as firmly as a ceiling raise, so there was no bookkeeping escape.)
• perry-hir/src/lower/tests.rs crossed the 2000-line cap; last test split out.

Validation: run_lint_gates.sh all 62 gates pass; release build green; RUST_TEST_THREADS=1 perry-runtime 3048/0; perry-hir 378/0; issue_9599_bun_platform 2/2; native_module 27/27 including arity_table_is_sorted.

Rebase-merge preserving authorship.

Summary by CodeRabbit

• New Features
  • Added Bun-compatible Transpiler support for TypeScript/JSX transformation and import scanning.
  • Added in-memory Bun.build support, including external modules and onResolve/onLoad plugins.
  • Added Bun.serve and import { serve } from "bun" support with Fetch handlers, request metadata, lifecycle methods, and server properties.
  • Build failures now report filenames and source positions without terminating the process.
• Documentation
  • Updated API declarations and reference documentation for the new Bun APIs.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Team

Run ID: b5823709-7ac7-46ca-9313-65ba70aea3d5

📥 Commits

Reviewing files that changed from the base of the PR and between 51a70f3 and 4d91080.

⛔ Files ignored due to path filters (1)

• Cargo.lock is excluded by !**/*.lock

📒 Files selected for processing (36)

• Cargo.toml
• changelog.d/9602-bun-runtime-compiler.md
• changelog.d/9625-bun-serve.md
• crates/perry-api-manifest/src/entries/part_4.rs
• crates/perry-codegen/src/ext_registry.rs
• crates/perry-codegen/src/lower_call/builtin.rs
• crates/perry-codegen/src/lower_call/native_table/bun.rs
• crates/perry-ext-http/src/server/bun_server.rs
• crates/perry-ext-http/src/server/dispatch_ext.rs
• crates/perry-ext-http/src/server/handle_dispatch.rs
• crates/perry-ext-http/src/server/mod.rs
• crates/perry-ext-http/src/server/server.rs
• crates/perry-ext-typescript/Cargo.toml
• crates/perry-ext-typescript/src/bun.rs
• crates/perry-ext-typescript/src/lib.rs
• crates/perry-hir/src/js_transform/local_natives.rs
• crates/perry-hir/src/lower/expr_call/module_static.rs
• crates/perry-hir/src/lower/expr_new/member.rs
• crates/perry-hir/src/lower/tests.rs
• crates/perry-hir/src/lower/tests/nullish_over_optional_chain.rs
• crates/perry-runtime/src/object/native_module/callable_export_arity_table.rs
• crates/perry-runtime/src/object/native_module/callable_export_check.rs
• crates/perry-runtime/src/object/native_module/callable_export_table.rs
• crates/perry-runtime/src/object/native_module/constructor_exports.rs
• crates/perry-runtime/src/object/native_module/module_keys.rs
• crates/perry-runtime/src/object/native_module_dispatch/dispatch_a_c.rs
• crates/perry-stdlib/src/common/dispatch/init.rs
• crates/perry-stdlib/src/fetch/bun_server_bridge.rs
• crates/perry-stdlib/src/fetch/mod.rs
• crates/perry/tests/issue_6560_bun_globals.rs
• crates/perry/tests/issue_9599_bun_platform.rs
• crates/perry/tests/issue_9602_bun_runtime_compiler.rs
• crates/perry/tests/issue_9603_bun_serve.rs
• docs/api/perry.d.ts
• docs/src/api/reference.md
• scripts/addr_class_allowlist.txt

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📝 Walkthrough

Walkthrough

Changes

Bun runtime compiler

Layer / File(s)	Summary
Compiler API surface and lowering Cargo.toml, crates/perry-ext-typescript/..., crates/perry-codegen/..., crates/perry-hir/..., crates/perry-runtime/..., crates/perry-api-manifest/..., docs/..., scripts/...	Registers Bun.Transpiler and Bun.build across dependencies, lowering, native dispatch, exports, manifests, and documentation.
SWC transpiler and build implementation crates/perry-ext-typescript/src/bun.rs, crates/perry/tests/issue_9602_bun_runtime_compiler.rs, changelog.d/9602-bun-runtime-compiler.md	Implements TypeScript/JSX lowering, import scanning, plugin hooks, bundling, diagnostics, promise results, and integration coverage.
Compiler lowering and regression validation crates/perry-hir/src/lower/tests.rs, crates/perry-hir/src/lower/tests/nullish_over_optional_chain.rs	Tests native lowering for Bun compiler calls and isolates the optional-chain type regression test.

Bun.serve HTTP facade

Layer / File(s)	Summary
Serve API surface and dispatch wiring crates/perry-api-manifest/..., crates/perry-codegen/..., crates/perry-runtime/..., crates/perry-stdlib/..., crates/perry-ext-http/..., docs/..., changelog.d/9625-bun-serve.md	Registers Bun.serve, routes it to the HTTP extension, and exposes its callable export and documented API surface.
Serve request and promise lifecycle crates/perry-ext-http/src/server/...	Adds server creation, Fetch handler invocation, promise settlement, response application, request IP tracking, lifecycle operations, and GC root handling.
Fetch bridge and server member behavior crates/perry-stdlib/src/fetch/..., crates/perry-ext-http/src/server/dispatch_*.rs	Converts HTTP request and response snapshots through Fetch registries and exposes Bun server methods and properties.
Serve integration validation crates/perry/tests/issue_6560_bun_globals.rs, crates/perry/tests/issue_9599_bun_platform.rs, crates/perry/tests/issue_9603_bun_serve.rs	Updates unsupported-call expectations and tests HTTP handling, asynchronous handlers, metadata, lifecycle methods, errors, and TLS rejection.

Estimated code review effort: 5 (Critical) | ~120 minutes

Suggested reviewers: thehypnoo

Sequence Diagram(s)

sequenceDiagram
  participant BunCode
  participant PerryRuntime
  participant TypeScriptExtension
  participant SWCBundler
  BunCode->>PerryRuntime: Call Transpiler or build
  PerryRuntime->>TypeScriptExtension: Native FFI call
  TypeScriptExtension->>SWCBundler: Transform, resolve, and bundle
  SWCBundler-->>TypeScriptExtension: Output or diagnostics
  TypeScriptExtension-->>BunCode: String or promise result

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sequenceDiagram
  participant Client
  participant HttpServer
  participant BunServe
  participant FetchRegistry
  Client->>HttpServer: HTTP request
  HttpServer->>BunServe: Process pending request
  BunServe->>FetchRegistry: Create Fetch Request
  BunServe-->>FetchRegistry: Snapshot Fetch Response
  HttpServer-->>Client: HTTP response

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✨ Finishing Touches

📝 Generate docstrings

• Create stacked PR
• Commit on current branch

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch land-train93

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