Bun gets a new bundler (#2312)

* alright now just gotta try running it

* fix a gajillion compiler errors

* even more code

* okay i fixed more errors

* wip

* Update launch.json

* Update string_builder.zig

* `fast_debug_build_mode` makes debug build 2x faster

* Update bundle_v2.zig

* more code!

* It bundles!

* Rename `Bun.Transpiler` to `Bun.Bundler`

* `import()` expressions almost work

* wip attempt to get import() expr to work

* Bundle namespace imports

* Attempt to fix the issue with import() unsuccessfully

* consider current working directory when resolving relative paths (#2313)

* consider current working directory when resolving relative paths

fixes #2298

* comment test

---------

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

* support `expect().toThrow(/pattern/)` (#2314)

- fix time-zone-dependent test failure

* fix missing `Blob` error messages on Linux (#2315)

* fix & clean up tests (#2318)

- skip flaky tests when running as `root`
- use `expect().toThrow()`
- clean up temporary files after tests

* feat(tty): add some `tty.WriteStream` methods to `process.{stdout, stderr}` (#2320)

* feat(stdio): add some `tty.WriteStream` methods

* chore(builtins): add process builtin gen'd code

* Fix docker install command

* `bun test` on macOS in GitHub Actions (#2322)

* Fixes #2323

* throw invalid parameter errors in `crypto.scryptSync` (#2331)

* throw invalid parameter errors

* remove comptime, add empty buffer function

* remove error_name comptime

* Add reference documentation for bun:test (#2327)

* Reorganize tests (#2332)

* Fix html-rewriter.test.js

* fix the wrong thing being incremented in hmr example (#2334)

* Add more test harness

* Improve Benchmarking page, small fixes (#2339)

* Improve benchmarking page

* WIP

* Add typescript instructions to hot

* Document preload in Plugins. Fix loader in plugin types.

* Fix typo

* Fix links

* run prettier

* Document openInEditor

* improve `Buffer` compatibility with Node.js (#2341)

* improve `Buffer` compatibility with Node.js

* use `memmove()`
allow `encoding` to be `undefined`

* run `bun test` after macOS builds (#2343)

* "binary" is an alias of "latin1"

Fixes https://github.com/oven-sh/bun/issues/2110

* More spec compliant `Blob.prototype.type` (#2340)

* Make `Blob.prototype. type` more spec compliant

* Add a few more checks for isNumber()

* Fix `make headers`

* Safer JSValue.isString()

* More tests for blob.slice

* Make `Blob.prototype.type` more spec compliant

* Add isASCII check

* Fix types

* Fix failing type test

* Update blob.zig

* Update blob.zig

* Fix .eql check on empty values

---------

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

* Fix bug in test runner

* Support `import()` expressions

* Implement `require()`

* clean up bit_set.zig slightly

* Move some things around

* misc cleanup

* Cleanup some things

* Fix a lot of stuff

* Fix `module.exports.fn = fn;` in ESM entry point

* Fix crash due when printing file

* Fix issue with class names

* Fix issue with `export default identifier`

* Update js_parser.zig

* optimization: inline single-property object acceses and arrays

* Fix undefined memory in renamed symbols list

* Handle call target

* wip

* Inline it

* Fix undefined memory issue when reclaiming blocks in ast

* Halt linking on any parse errors

* alias

* Rename `enable_bundling` to `enable_legacy_bundling`

* Workaround anonymous struct literal zig bug

* Use slower approach (without bitset) because it doesn't break after 8 symbols

* Fix incorrectly-renaming statically defined symbols

* Handle more edgecases in our bit_set fork

* Reduce number of allocations for `define`

* Do not rename unbound symbols

* Clean up dot defines a little more

* Make the generated names prettier

* Workaround runtime symbol missing issue

* Fail the build on errors

* Support export * from

* Support `--outfile`

* partially fix renaming

* fanicer symbol renaming impl

* misc, extremely revertible cleanup

* Fix up some bugs with symbol renaming

* formatting

* Update launch.json

* Parse `__PURE__` comments

* clean up simd code for pure comments

* changes to merge

* workaround runtime issue

* Fix issue with `export * as` not propagating correctly

* Make all top-level declarations `var` when bundling

* Fix missing prefix

* Fix assigning to stack copy

* Fix missing runtime symbol

* Fix bug with namespace exports

* Dramatically reduce allocations

* Update launch.json

* Add missing flags

* Update js_parser.zig

* small cleanup

* Make the export name better

* Fix unnecessary `var foo = foo`

* Implement CommonJS -> ESM conversion

* Implement module redirects

* Port esbuild bundler tests for new bundler (#2380)

* started porting esbuild tests

* clean up test names and api before moving on

* port tests using a program i wrote

* replace todo generated comment

* fix generated tests not including some files

* work on tests

* [github web editor] add define, external, inject, minifySyntax, minifyWhitespace options.

* get most of the todo comments out of the way, but expectBundled does not handle most of the cases

* continue working on esbuild tests

* use test.skip for unsupported tests

* Fixups for test runner

* Hoist imports & exports

* Fix test

* Hoist classes

* bundler test refining, 51/835

* Fix runtime require

* bundler test refining, 81/835

* bundler test refining, 93/835

* Make the test work in any timezone

* feat(expect): update toBeInstanceOf (#2396)

* feat: update instanceof binding

* fix: according to PR comments

* Rename `expectObjectTypeCount` to `expectMaxObjectTypeCount`

* Fix socket tests with connection errors (#2403)

* release pending activity with connection error handler

* unref poll_ref

* remove trailing comma

* Organize Dockerfiles for official status

* Remove test Dockerfile

* Remove old Docker workflow

* Feat(test): add toMatch (#2404)

* Fix various fetch/response/request tests (#2416)

* fix most fetch tests, skip a few

* fastGet, toValueGC, and invalid init

* bigint unreachable, range error, log process as process

* remove extra fetch_headers

* remove js_type parameter, check isObject()

* throw invalid mime type error, use enum literal

* switch back to promise rejection

* RangeError pascal case

* Fix several bugs (#2418)

* utf16 codepoint with replacement character

* Fix test failure with `TextEncoder("ascii')`

* Add missing type

* Fix Response.prototype.bodyUsed and Request.prototype.bodyUsed

* Fix bug with scrypt error not clearing

* Update server.zig

* oopsie

* :nail_care:

* docs: Use correct url in the 'Issues' link in README header (#2420)

* Fix crash when rendering error page and the server or network is slow

* [fetch] Make the default body value `null` when unspecified

This is better aligned with the fetch spec

* Make node-net tests less flaky

* [node:net] Fix issue with `listen` callback firing before it's listening

* Always clear timers in node test harness

* Fix out of bounds access

Repro'd in Buffer tests

* Update UWS

cc @cirospaciari

* Make this test more thorough

* Hanging abort test

* 0 length body is a null stream

* Several bug fixes (#2427)

* Fix test

* Fix segfault when unexpected type is passed in `expect().toThrow`

* Fix issues with request constructor

* Don't bother cloning headers when its empty

* woops

* more tests

* fix incorrect test

* Make the fetch error messages better

* Update response.zig

* Fix test that failed on macOS

* Fix test

* Remove extra hash table lookups

* Support running dummy registry directly

cc @alexlamsl

* Update test

* Update test

* fixup

* Workaround crash in test runner

* Fixup test

* Fixup test

* Update os.test.js

---------

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>

* Remove usages of port numbers in tests

* Set -O2 and -fno-rtti

* Remove -g

* Prevent undefined memory access

* [bun test] Implement `--rerun-each` flag to run each test N times

* Reduce number of module scopes created

* add some extra abort checks into streams (#2430)

* add some checks to avoid UAF

* avoid multiple calls to finalize if endFromJS is called more than once

* fix no-op comment

* mark as requested_end on abort

* remove requested_end from abort

* remove unnecessary check (#2432)

* Fix bug with scoped aliased dependencies in bun install on macOS

* remove `addLog`, remove `--prominent-compile-errors`

* Finish the upgrade

* Optional chaining flag

* Implement same_target_becomes_destructuring optimization

* bundler test refining, 109/835

* Reset bindings

* Support multiple entry points

* Implement `--entry-names` flag

* Use a tempdir with a better name

* prettier

* Log file name

* Update js_parser.zig

* Mark all bun builtins as external

* Make resolve errors actually errors

* Update bundler_default.test.ts

* Fix `await import(foo)`

* WIP react server components

* Do more stuff at runtime

* :scissors:

* Support automatic JSX imports

* Use a module cache for now

* Update tsconfig.base.json

* Fix ThisOutsideFunctionNotRenamed

* woopsie

* moar cpu

* clamp it

* fixup

* Add a bunch of assertions

* Bun uses automatic runtime by default

* Parse Import Attributes

* Add a note about Valgrind

* Update developing.md

* Fix up code splitting for React Server Components

* Implement client component manifest

* Fix crash with --react-server-components and no client components

* Backport https://github.com/ziglang/zig/commit/4d31e3c917a05541394c544708f0047cfb53331a

* Update launch.json

* Fix for latest zig

* Workaround bug with ?[]const string

Occasionally saw alignment errors in this code

Workaround https://github.com/ziglang/zig/issues/15085

related: https://github.com/ziglang/zig/pull/15089

* switch to regular slice

* Avoid initializing named_imports and named_exports as undefined

* Reduce usages of `undefined`

* Add more assertions

* --watch wip

* Update javascript.zig

* Possibly fix the race condition

* Faster `do`

* bump allocator

* Reduce the size of `Symbol` slightly

* Alphabetically sort runtime import symbols, for determinism

* Prepare for code splitting

* handle overlapping stdout

* pure

* clean up some things

* Fix bug with `$$typeof`

* Address CommonJS -> ESM hoisting bug

* Support `"use server"` in manifest

* Implement `"use server"`

* Fix importing bun builtins when bundling

* Make `commonjs_to_esm` a feature flag, fix some splitting bugs

* :scissors:

* fixme remove this

* Fix crash in longestCommonPath

* Chunking! Just need to do import paths now.

* Import paths work...now trying to figure out how to make runtime symbols work

* add workaround

* Replace `bun bun` with `bun build`

* Fix crash with dual package hazard

* Fix many CommonJS <> ESM interop bugs

* Support package.json `"sideEffects"`

also skip loading unnecessary package.json data in `bun run`

* add a not good --watch implementation

* bundler test refining, 140/831

* remove accidentally committed file

* do not return status code 1 on successful bundles

* bundler test refining, 159/830

* pass exit code to exitOrWatch

* clean up help menu

-remove two spaces to line up bun build
-moved all <r> tags to the end of the text they are colorizing
-moved other colors to the start of the text they colorize
-removed unneeded <r> tags, keeping only one at the start of the block

* importstar is fully ported

* wip

* you can run code in this branch now

* Disable this transform

* organize and document bundler tests

* Fix double import

* Fix sloppy mode function declarations

* Disable our CommonJS transform for now

* add `assertNotPresent` to make splitting cases easier

* Bump!

* Update bun.d.ts

* use import.meta.require in runtime code

* Disable this again

* Fix dirname

* Fix ESM -> CJS wrapper

* :nail_care:

---------

Co-authored-by: Jarred Sumner <709451+Jarred-Sumner@users.noreply.github.com>
Co-authored-by: Alex Lam S.L <alexlamsl@gmail.com>
Co-authored-by: Derrick Farris <mr.dcfarris@gmail.com>
Co-authored-by: Ashcon Partovi <ashcon@partovi.net>
Co-authored-by: Dylan Conway <35280289+dylan-conway@users.noreply.github.com>
Co-authored-by: pfg <pfg@pfg.pw>
Co-authored-by: Colin McDonnell <colinmcd94@gmail.com>
Co-authored-by: dave caruso <me@paperdave.net>
Co-authored-by: zhiyuan <32867472+zhiyuang@users.noreply.github.com>
Co-authored-by: Dylan Conway <dylan.conway567@gmail.com>
Co-authored-by: Kamil Ogórek <kamil.ogorek@gmail.com>
Co-authored-by: Ciro Spaciari <ciro.spaciari@gmail.com>

1 files changed, 86 insertions, 56 deletions

diff --git a/src/runtime.js b/src/runtime.js
index 537ea9eed..b4631ea1e 100644
--- a/src/runtime.js
+++ b/src/runtime.js
@@ -1,4 +1,5 @@
-var $$mod$ = Symbol.for;
+var tagSymbol;
+var cjsRequireSymbol;
 var __create = Object.create;
 var __descs = Object.getOwnPropertyDescriptors;
 var __defProp = Object.defineProperty;
@@ -7,28 +8,83 @@ var __hasOwnProp = Object.prototype.hasOwnProperty;
 var __getOwnPropNames = Object.getOwnPropertyNames;
 var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
 
-// We're disabling Object.freeze because it breaks CJS => ESM and can cause
-// issues with Suspense and other things that expect the CJS module namespace
-// to be mutable when the ESM module namespace is NOT mutable
-// var __objectFreezePolyfill = new WeakSet();
+export var __markAsModule = target => __defProp(target, "__esModule", { value: true, configurable: true });
 
-// globalThis.Object.freeze = function freeze(obj) {
-//   __objectFreezePolyfill.add(obj);
-//   return obj;
-// };
+// This is used to implement "export * from" statements. It copies properties
+// from the imported module to the current module's ESM export object. If the
+// current module is an entry point and the target format is CommonJS, we
+// also copy the properties to "module.exports" in addition to our module's
+// internal ESM export object.
+export var __reExport = (target, mod, secondTarget) => {
+  for (let key of __getOwnPropNames(mod))
+    if (!__hasOwnProp.call(target, key) && key !== "default")
+      __defProp(target, key, {
+        get: () => mod[key],
+        enumerable: true,
+      });
 
-// globalThis.Object.isFrozen = function isFrozen(obj) {
-//   return __objectFreezePolyfill.has(obj);
-// };
+  if (secondTarget) {
+    for (let key of __getOwnPropNames(mod))
+      if (!__hasOwnProp.call(secondTarget, key) && key !== "default")
+        __defProp(secondTarget, key, {
+          get: () => mod[key],
+          enumerable: true,
+        });
 
-export var __markAsModule = target => __defProp(target, "__esModule", { value: true, configurable: true });
+    return secondTarget;
+  }
+};
+
+// Converts the module from CommonJS to ESM. When in node mode (i.e. in an
+// ".mjs" file, package.json has "type: module", or the "__esModule" export
+// in the CommonJS file is falsy or missing), the "default" property is
+// overridden to point to the original CommonJS exports object instead.
+export var __toESM = (mod, isNodeMode, target) => {
+  target = mod != null ? __create(__getProtoOf(mod)) : {};
+  const to =
+    isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target;
+
+  // If the importer is in node compatibility mode or this is not an ESM
+  // file that has been converted to a CommonJS file using a Babel-
+  // compatible transform (i.e. "__esModule" has not been set), then set
+  // "default" to the CommonJS "module.exports" for node compatibility.
+  for (let key of __getOwnPropNames(mod))
+    if (!__hasOwnProp.call(to, key))
+      __defProp(to, key, {
+        get: () => mod[key],
+        enumerable: true,
+      });
+
+  return to;
+};
+
+// Converts the module from ESM to CommonJS. This clones the input module
+// object with the addition of a non-enumerable "__esModule" property set
+// to "true", which overwrites any existing export named "__esModule".
+export var __toCommonJS = /* @__PURE__ */ from => {
+  const moduleCache = (__toCommonJS.moduleCache ??= new WeakMap());
+  var cached = moduleCache.get(from);
+  if (cached) return cached;
+  var to = __defProp({}, "__esModule", { value: true });
+  var desc = { enumerable: false };
+  if ((from && typeof from === "object") || typeof from === "function")
+    for (let key of __getOwnPropNames(from))
+      if (!__hasOwnProp.call(to, key))
+        __defProp(to, key, {
+          get: () => from[key],
+          enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable,
+        });
+
+  moduleCache.set(from, to);
+  return to;
+};
 
 // lazy require to prevent loading one icon from a design system
-export var $$lzy = (target, module, props) => {
+export var $$lzy = (target, mod, props) => {
   for (let key in props) {
     if (!__hasOwnProp.call(target, key))
       __defProp(target, key, {
-        get: () => module()[props[key]],
+        get: () => mod()[props[key]],
         enumerable: true,
         configurable: true,
       });
@@ -36,27 +92,16 @@ export var $$lzy = (target, module, props) => {
   return target;
 };
 
-export var __toModule = module => {
-  return __reExport(
-    __markAsModule(
-      __defProp(
-        module != null ? __create(__getProtoOf(module)) : {},
-        "default",
-        module && module.__esModule && "default" in module
-          ? { get: () => module.default, enumerable: true, configurable: true }
-          : { value: module, enumerable: true, configurable: true },
-      ),
-    ),
-    module,
-  );
-};
+// When you do know the module is CJS
+export var __commonJS = (cb, mod) => () => (mod || cb((mod = { exports: {} }).exports, mod), mod.exports);
 
-var tagSymbol = Symbol.for("CommonJSTransformed");
-var cjsRequireSymbol = Symbol.for("CommonJS");
-export var __commonJS = (cb, name) => {
+// When you don't know if the module is going to be ESM or CJS
+export var __cJS2eSM = (cb, name) => {
   var mod;
   var origExports;
   var has_run = false;
+  tagSymbol ??= Symbol.for("CommonJSTransformed");
+  cjsRequireSymbol ??= Symbol.for("CommonJS");
 
   const requireFunction = function load() {
     if (has_run) {
@@ -125,15 +170,13 @@ export var __commonJS = (cb, name) => {
   return requireFunction;
 };
 
-export var __cJS2eSM = __commonJS;
-
-export var __internalIsCommonJSNamespace = namespace =>
+export var __internalIsCommonJSNamespace = /* @__PURE__ */ namespace =>
   namespace != null &&
   typeof namespace === "object" &&
   ((namespace.default && namespace.default[cjsRequireSymbol]) || namespace[cjsRequireSymbol]);
 
 // require()
-export var __require = namespace => {
+export var __require = /* @__PURE__ */ namespace => {
   if (__internalIsCommonJSNamespace(namespace)) {
     return namespace.default();
   }
@@ -141,13 +184,6 @@ export var __require = namespace => {
   return namespace;
 };
 
-// require().default
-// this currently does nothing
-// get rid of this wrapper once we're more confident we do not need special handling for default
-__require.d = namespace => {
-  return namespace;
-};
-
 export var $$m = __commonJS;
 
 export var __name = (target, name) => {
@@ -162,7 +198,8 @@ export var __name = (target, name) => {
 
 // ESM export -> CJS export
 // except, writable incase something re-exports
-export var __export = (target, all) => {
+
+export var __export = /* @__PURE__ */ (target, all) => {
   for (var name in all)
     __defProp(target, name, {
       get: all[name],
@@ -192,18 +229,6 @@ export var __exportDefault = (target, value) => {
   });
 };
 
-export var __reExport = (target, module, desc) => {
-  if ((module && typeof module === "object") || typeof module === "function")
-    for (let key of __getOwnPropNames(module))
-      if (!__hasOwnProp.call(target, key) && key !== "default")
-        __defProp(target, key, {
-          get: () => module[key],
-          configurable: true,
-          enumerable: !(desc = __getOwnPropDesc(module, key)) || desc.enumerable,
-        });
-  return target;
-};
-
 function hasAnyProps(obj) {
   for (let key in obj) return true;
   return false;
@@ -236,3 +261,8 @@ export var __decorateClass = (decorators, target, key, kind) => {
 };
 
 export var __decorateParam = (index, decorator) => (target, key) => decorator(target, key, index);
+
+export var __esm = (fn, res) => () => (fn && (res = fn((fn = 0))), res);
+
+// This is used for JSX inlining with React.
+export var $$typeof = /* @__PURE__ */ Symbol.for("react.element");