bun.sh/src/bake/BakeGlobalObject.cpp

#include "BakeGlobalObject.h"
#include "JSNextTickQueue.h"
#include "JavaScriptCore/GlobalObjectMethodTable.h"
#include "JavaScriptCore/JSInternalPromise.h"
#include "headers-handwritten.h"
#include "JavaScriptCore/JSModuleLoader.h"
#include "JavaScriptCore/Completion.h"

extern "C" BunString BakeProdResolve(JSC::JSGlobalObject*, BunString a, BunString b);

namespace Bake {

JSC::JSInternalPromise*
bakeModuleLoaderImportModule(JSC::JSGlobalObject* global,
    JSC::JSModuleLoader* moduleLoader, JSC::JSString* moduleNameValue,
    JSC::JSValue parameters,
    const JSC::SourceOrigin& sourceOrigin)
{
    WTF::String keyString = moduleNameValue->getString(global);
    if (keyString.startsWith("bake:/"_s)) {
        JSC::VM& vm = global->vm();
        return JSC::importModule(global, JSC::Identifier::fromString(vm, keyString),
            JSC::jsUndefined(), parameters, JSC::jsUndefined());
    }

    if (!sourceOrigin.isNull() && sourceOrigin.string().startsWith("bake:/"_s)) {
        JSC::VM& vm = global->vm();
        auto scope = DECLARE_THROW_SCOPE(vm);

        WTF::String refererString = sourceOrigin.string();
        WTF::String keyString = moduleNameValue->getString(global);

        if (!keyString) {
            auto promise = JSC::JSInternalPromise::create(vm, global->internalPromiseStructure());
            promise->reject(global, JSC::createError(global, "import() requires a string"_s));
            return promise;
        }

        BunString result = BakeProdResolve(global, Bun::toString(refererString), Bun::toString(keyString));
        RETURN_IF_EXCEPTION(scope, nullptr);

        return JSC::importModule(global, JSC::Identifier::fromString(vm, result.toWTFString()),
            JSC::jsUndefined(), parameters, JSC::jsUndefined());
    }

    // Use Zig::GlobalObject's function
    return jsCast<Zig::GlobalObject*>(global)->moduleLoaderImportModule(global, moduleLoader, moduleNameValue, parameters, sourceOrigin);
}

JSC::Identifier bakeModuleLoaderResolve(JSC::JSGlobalObject* jsGlobal,
    JSC::JSModuleLoader* loader, JSC::JSValue key,
    JSC::JSValue referrer, JSC::JSValue origin)
{
    Bake::GlobalObject* global = jsCast<Bake::GlobalObject*>(jsGlobal);
    JSC::VM& vm = global->vm();
    auto scope = DECLARE_THROW_SCOPE(vm);

    ASSERT(referrer.isString());
    WTF::String refererString = jsCast<JSC::JSString*>(referrer)->getString(global);

    WTF::String keyString = key.toWTFString(global);
    RETURN_IF_EXCEPTION(scope, vm.propertyNames->emptyIdentifier);

    if (refererString.startsWith("bake:/"_s) || (refererString == "."_s && keyString.startsWith("bake:/"_s))) {
        BunString result = BakeProdResolve(global, Bun::toString(referrer.getString(global)), Bun::toString(keyString));
        RETURN_IF_EXCEPTION(scope, vm.propertyNames->emptyIdentifier);

        return JSC::Identifier::fromString(vm, result.toWTFString(BunString::ZeroCopy));
    }

    // Use Zig::GlobalObject's function
    return Zig::GlobalObject::moduleLoaderResolve(jsGlobal, loader, key, referrer, origin);
}

#define INHERIT_HOOK_METHOD(name) \
    Zig::GlobalObject::s_globalObjectMethodTable.name

const JSC::GlobalObjectMethodTable GlobalObject::s_globalObjectMethodTable = {
    INHERIT_HOOK_METHOD(supportsRichSourceInfo),
    INHERIT_HOOK_METHOD(shouldInterruptScript),
    INHERIT_HOOK_METHOD(javaScriptRuntimeFlags),
    INHERIT_HOOK_METHOD(queueMicrotaskToEventLoop),
    INHERIT_HOOK_METHOD(shouldInterruptScriptBeforeTimeout),
    bakeModuleLoaderImportModule,
    bakeModuleLoaderResolve,
    INHERIT_HOOK_METHOD(moduleLoaderFetch),
    INHERIT_HOOK_METHOD(moduleLoaderCreateImportMetaProperties),
    INHERIT_HOOK_METHOD(moduleLoaderEvaluate),
    INHERIT_HOOK_METHOD(promiseRejectionTracker),
    INHERIT_HOOK_METHOD(reportUncaughtExceptionAtEventLoop),
    INHERIT_HOOK_METHOD(currentScriptExecutionOwner),
    INHERIT_HOOK_METHOD(scriptExecutionStatus),
    INHERIT_HOOK_METHOD(reportViolationForUnsafeEval),
    INHERIT_HOOK_METHOD(defaultLanguage),
    INHERIT_HOOK_METHOD(compileStreaming),
    INHERIT_HOOK_METHOD(instantiateStreaming),
    INHERIT_HOOK_METHOD(deriveShadowRealmGlobalObject),
    INHERIT_HOOK_METHOD(codeForEval),
    INHERIT_HOOK_METHOD(canCompileStrings),
};

GlobalObject* GlobalObject::create(JSC::VM& vm, JSC::Structure* structure,
    const JSC::GlobalObjectMethodTable* methodTable)
{
    GlobalObject* ptr = new (NotNull, JSC::allocateCell<GlobalObject>(vm))
        GlobalObject(vm, structure, methodTable);
    ptr->finishCreation(vm);
    return ptr;
}

void GlobalObject::finishCreation(JSC::VM& vm)
{
    Base::finishCreation(vm);
    ASSERT(inherits(info()));
}

struct BunVirtualMachine;
extern "C" BunVirtualMachine* Bun__getVM();

// A lot of this function is taken from 'Zig__GlobalObject__create'
// TODO: remove this entire method
extern "C" GlobalObject* BakeCreateProdGlobal(void* console)
{
    JSC::VM& vm = JSC::VM::create(JSC::HeapType::Large).leakRef();
    vm.heap.acquireAccess();
    JSC::JSLockHolder locker(vm);
    BunVirtualMachine* bunVM = Bun__getVM();
    WebCore::JSVMClientData::create(&vm, bunVM);

    JSC::Structure* structure = GlobalObject::createStructure(vm);
    GlobalObject* global = GlobalObject::create(
        vm, structure, &GlobalObject::s_globalObjectMethodTable);
    if (!global)
        BUN_PANIC("Failed to create BakeGlobalObject");

    global->m_bunVM = bunVM;

    JSC::gcProtect(global);

    global->setConsole(console);
    global->setStackTraceLimit(10); // Node.js defaults to 10

    // TODO: it segfaults! process.nextTick is scoped out for now i guess!
    // vm.setOnComputeErrorInfo(computeErrorInfoWrapper);
    // vm.setOnEachMicrotaskTick([global](JSC::VM &vm) -> void {
    //   if (auto nextTickQueue = global->m_nextTickQueue.get()) {
    //     global->resetOnEachMicrotaskTick();
    //     // Bun::JSNextTickQueue *queue =
    //     //     jsCast<Bun::JSNextTickQueue *>(nextTickQueue);
    //     // queue->drain(vm, global);
    //     return;
    //   }
    // });

    return global;
}

}; // namespace Bake