diff options
| -rw-r--r-- | src/bun.js/bindings/BunJSCModule.cpp | 16 | ||||
| -rw-r--r-- | types/bun/jsc.d.ts | 26 |
2 files changed, 40 insertions, 2 deletions
diff --git a/src/bun.js/bindings/BunJSCModule.cpp b/src/bun.js/bindings/BunJSCModule.cpp index 027cb3778..b81f2db93 100644 --- a/src/bun.js/bindings/BunJSCModule.cpp +++ b/src/bun.js/bindings/BunJSCModule.cpp @@ -289,6 +289,19 @@ JSC_DEFINE_HOST_FUNCTION(functionTotalCompileTime, (JSGlobalObject*, CallFrame*) return JSValue::encode(jsNumber(JIT::totalCompileTime().milliseconds())); } +JSC_DECLARE_HOST_FUNCTION(functionGetProtectedObjects); +JSC_DEFINE_HOST_FUNCTION(functionGetProtectedObjects, (JSGlobalObject * globalObject, CallFrame*)) +{ + MarkedArgumentBuffer list; + size_t result = 0; + globalObject->vm().heap.forEachProtectedCell( + [&](JSCell* cell) { + list.append(cell); + }); + RELEASE_ASSERT(!list.hasOverflowed()); + return JSC::JSValue::encode(constructArray(globalObject, static_cast<JSC::ArrayAllocationProfile*>(nullptr), list)); +} + JSC_DECLARE_HOST_FUNCTION(functionReoptimizationRetryCount); JSC_DEFINE_HOST_FUNCTION(functionReoptimizationRetryCount, (JSGlobalObject*, CallFrame* callFrame)) { @@ -320,7 +333,7 @@ JSC::JSObject* createJSCModule(JSC::JSGlobalObject* globalObject) { JSC::ObjectInitializationScope initializationScope(vm); - object = JSC::constructEmptyObject(globalObject, globalObject->objectPrototype(), 21); + object = JSC::constructEmptyObject(globalObject, globalObject->objectPrototype(), 22); object->putDirectNativeFunction(vm, globalObject, JSC::Identifier::fromString(vm, "callerSourceOrigin"_s), 1, functionCallerSourceOrigin, NoIntrinsic, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontDelete | 0); object->putDirectNativeFunction(vm, globalObject, JSC::Identifier::fromString(vm, "describe"_s), 1, functionDescribe, NoIntrinsic, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontDelete | 0); object->putDirectNativeFunction(vm, globalObject, JSC::Identifier::fromString(vm, "describeArray"_s), 1, functionDescribeArray, NoIntrinsic, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontDelete | 0); @@ -342,6 +355,7 @@ JSC::JSObject* createJSCModule(JSC::JSGlobalObject* globalObject) object->putDirectNativeFunction(vm, globalObject, JSC::Identifier::fromString(vm, "setRandomSeed"_s), 1, functionSetRandomSeed, NoIntrinsic, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontDelete | 0); object->putDirectNativeFunction(vm, globalObject, JSC::Identifier::fromString(vm, "startRemoteDebugger"_s), 2, functionStartRemoteDebugger, NoIntrinsic, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontDelete | 0); object->putDirectNativeFunction(vm, globalObject, JSC::Identifier::fromString(vm, "totalCompileTime"_s), 1, functionTotalCompileTime, NoIntrinsic, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontDelete | 0); + object->putDirectNativeFunction(vm, globalObject, JSC::Identifier::fromString(vm, "getProtectedObjects"_s), 1, functionGetProtectedObjects, NoIntrinsic, JSC::PropertyAttribute::ReadOnly | JSC::PropertyAttribute::DontDelete | 0); } return object; diff --git a/types/bun/jsc.d.ts b/types/bun/jsc.d.ts index a43e87745..b59f8adee 100644 --- a/types/bun/jsc.d.ts +++ b/types/bun/jsc.d.ts @@ -5,7 +5,16 @@ declare module "bun:jsc" { export function fullGC(): void; export function edenGC(): void; export function heapSize(): number; - export function heapStats(); + export function heapStats(): { + heapSize: number; + heapCapacity: number; + extraMemorySize: number; + objectCount: number; + protectedObjectCount: number; + globalObjectCount: number; + protectedGlobalObjectCount: number; + objectTypeCounts: Record<string, number>; + }; export function memoryUsage(): { current: number; peak: number; @@ -27,9 +36,24 @@ declare module "bun:jsc" { export function drainMicrotasks(): void; /** + * This returns objects which native code has explicitly protected from being + * garbage collected + * + * By calling this function you create another reference to the object, which + * will further prevent it from being garbage collected + * + * This function is mostly a debugging tool for bun itself. + * + * Warning: not all objects returned are supposed to be observable from JavaScript + */ + export function getProtectedObjects(): any[]; + + /** * Start a remote debugging socket server on the given port. * * This exposes JavaScriptCore's built-in debugging server. + * + * This is untested. May not be supported yet on macOS */ export function startRemoteDebugger(host?: string, port?: number): void; } |