quickjs/ffi library

Classes

JSChannelType

JSContext

JSEvalFlag

JsMemoryUsage

Snapshot of QuickJS JSMemoryUsage fields used for monitoring.

JSProp

JSPropertyEnum

JSRef

JSRefLeakable

JSRuntime

JSTag

JsTypedArrayTransfer

A native buffer whose ownership can be transferred to a QuickJS TypedArray.

JSTypedArrayType

JSTypedArrayEnum values (order matches quickjs.h).

JSValue

NativeHeapUsage

C heap accounting: what the allocator holds vs what is actually live.

Extensions

ListFirstWhere on Iterable<T>

Constants

jsStripSource → const int

JS_STRIP_SOURCE: drop function source text from compiled code.

Properties

compileFn → Pointer<Uint8> Function(Pointer<JSContext>, Pointer<Char>, Pointer<Char>, Pointer<IntPtr>)

late, final

compileWithFlagsFn → Pointer<Uint8> Function(Pointer<JSContext>, Pointer<Char>, Pointer<Char>, int, Pointer<IntPtr>)

DLLEXPORT uint8_t *jsCompile(JSContext *, const char *script, const char *fileName, int32_t eval_flags, size_t *lengthPtr)

late, final

evaluateBytecodeFn → Pointer<JSValue> Function(Pointer<JSContext>, int, Pointer<Uint8>)

late, final

jsAllocBuffer → Pointer<Uint8> Function(int len)

uint8_t *jsAllocBuffer(size_t len)

final

jsAtomToValue → Pointer<JSValue> Function(Pointer<JSContext> ctx, int val)

JSValue *jsAtomToValue(JSContext *ctx, JSAtom val)

final

jsBeginCall → void Function(Pointer<JSContext>)

void jsBeginCall(JSContext *ctx)

final

jsBridgeStatsAllocBytes → int Function()

final

jsBridgeStatsAllocCalls → int Function()

final

jsBridgeStatsCopyBytes → int Function()

final

jsBridgeStatsCopyCalls → int Function()

final

jsBridgeStatsFreeCalls → int Function()

final

jsBridgeStatsMemcpyBytes → int Function()

final

jsBridgeStatsMemcpyCalls → int Function()

final

jsBridgeStatsOwnedTypedArrayCalls → int Function()

final

jsBridgeStatsRecordCopy → void Function(int)

final

jsBridgeStatsReset → void Function()

Native bridge operation counters used by diagnostic tests and profiling.

final

jsBridgeStatsTypedArrayDataCalls → int Function()

final

jsDefinePropertyValue → int Function(Pointer<JSContext> ctx, Pointer<JSValue> thisObj, int prop, Pointer<JSValue> val, int flag)

int jsDefinePropertyValue(JSContext *ctx, JSValueConst *this_obj, JSAtom prop, JSValue *val, int flags)

final

jsDefinePropertyValueUint32 → int Function(Pointer<JSContext> ctx, Pointer<JSValue> thisObj, int prop, Pointer<JSValue> val, int flag)

int jsDefinePropertyValueUint32(JSContext *ctx, JSValueConst *this_obj, uint32_t idx, JSValue *val, int flags)

final

jsDupValue → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

JSValue *jsDupValue(JSContext *ctx, JSValueConst *v)

final

jsDupValueRT → Pointer<JSValue> Function(Pointer<JSRuntime> rt, Pointer<JSValue> val)

JSValue *jsDupValueRT(JSRuntime *rt, JSValue *v)

final

jsEndCall → void Function(Pointer<JSContext>)

void jsEndCall(JSContext *ctx)

final

jsEXCEPTION → Pointer<JSValue> Function()

JSValue *jsEXCEPTION()

final

jsExecutePendingJob → int Function(Pointer<JSRuntime> ctx)

int jsExecutePendingJob(JSRuntime *rt)

final

jsFree → void Function(Pointer<JSContext> ctx, Pointer<JSPropertyEnum> ptab)

void jsFree(JSContext *ctx, void *ptab)

final

jsFreeAtom → void Function(Pointer<JSContext> ctx, int v)

void jsFreeAtom(JSContext *ctx, JSAtom v)

final

jsFreeContext → void Function(Pointer<JSContext>)

void jsFreeContext(JSContext *ctx)

final

jsFreeCString → void Function(Pointer<JSContext> ctx, Pointer<Utf8> val)

void jsFreeCString(JSContext *ctx, const char *ptr)

final

jsGetArrayBuffer → Pointer<Uint8> Function(Pointer<JSContext> ctx, Pointer<IntPtr> psize, Pointer<JSValue> val)

uint8_t *jsGetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst *obj)

final

jsGetException → Pointer<JSValue> Function(Pointer<JSContext> ctx)

JSValue *jsGetException(JSContext *ctx)

final

jsGetObjectOpaque → int Function(Pointer<JSValue> obj, int classid)

DLLEXPORT void *jsGetObjectOpaque(JSValue *obj, uint32_t classid)

final

jsGetOwnPropertyNames → int Function(Pointer<JSContext> ctx, Pointer<Pointer<JSPropertyEnum>> ptab, Pointer<Uint32> plen, Pointer<JSValue> obj, int flags)

int jsGetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab, uint32_t *plen, JSValueConst *obj, int flags)

final

jsGetProperty → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<JSValue> thisObj, int prop)

JSValue *jsGetProperty(JSContext *ctx, JSValueConst *this_obj, JSAtom prop)

final

jsGetPropertyUint32 → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<JSValue> thisObj, int prop)

JSValue *jsGetPropertyUint32(JSContext *ctx, JSValueConst *this_obj, uint32_t idx)

final

jsGetRuntime → Pointer<JSRuntime> Function(Pointer<JSContext>)

JSRuntime *jsGetRuntime(JSContext *ctx)

final

jsGetStripInfo → int Function(Pointer<JSRuntime> ctx)

int32_t jsGetStripInfo(JSRuntime *rt)

final

jsGetTypedArrayData → Pointer<Uint8> Function(Pointer<JSContext> ctx, Pointer<JSValue> val, Pointer<IntPtr> plength, Pointer<Int32> ptype)

uint8_t *jsGetTypedArrayData(JSContext *ctx, JSValueConst *val, size_t *plength, int32_t *ptype)

final

jsIsArray → int Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

int32_t jsIsArray(JSContext *ctx, JSValueConst *val)

final

jsIsError → int Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

DLLEXPORT int32_t jsIsError(JSContext *ctx, JSValueConst *val);

final

jsIsException → int Function(Pointer<JSValue> val)

int jsIsException(JSValueConst *val)

final

jsIsFunction → int Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

int32_t jsIsFunction(JSContext *ctx, JSValueConst *val)

final

jsIsJobPending → int Function(Pointer<JSRuntime> ctx)

DLLEXPORT int32_t jsIsJobPending(JSRuntime *rt)

final

jsIsPromise → int Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

int32_t jsIsPromise(JSContext *ctx, JSValueConst *val)

final

jsMemcpy → void Function(Pointer<Uint8>, Pointer<Uint8>, int)

void jsMemcpy(uint8_t *dst, const uint8_t *src, size_t len)

final

jsNewArray → Pointer<JSValue> Function(Pointer<JSContext> ctx)

JSValue *jsNewArray(JSContext *ctx)

final

jsNewArrayBufferCopy → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<Uint8> buf, int len)

JSValue *jsNewArrayBufferCopy(JSContext *ctx, const uint8_t *buf, size_t len)

final

jsNewArrayBufferOwned → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<Uint8> buf, int len)

JSValue *jsNewArrayBufferOwned(JSContext *ctx, uint8_t *buf, size_t len)

final

jsNewBigInt64 → Pointer<JSValue> Function(Pointer<JSContext> ctx, int val)

JSValue *jsNewBigInt64(JSContext *ctx, int64_t v)

final

jsNewBool → Pointer<JSValue> Function(Pointer<JSContext> ctx, int val)

JSValue *jsNewBool(JSContext *ctx, int val)

final

jsNewCFunction → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

JSValue *jsNewCFunction(JSContext *ctx, JSValue *funcData)

final

jsNewError → Pointer<JSValue> Function(Pointer<JSContext> ctx)

DLLEXPORT JSValue *jsNewError(JSContext *ctx);

final

jsNewFloat64 → Pointer<JSValue> Function(Pointer<JSContext> ctx, double val)

JSValue *jsNewFloat64(JSContext *ctx, double val)

final

jsNewInt64 → Pointer<JSValue> Function(Pointer<JSContext> ctx, int val)

JSValue *jsNewInt64(JSContext *ctx, int64_t val)

final

jsNewObject → Pointer<JSValue> Function(Pointer<JSContext> ctx)

JSValue *jsNewObject(JSContext *ctx)

final

jsNewObjectClass → Pointer<JSValue> Function(Pointer<JSContext> ctx, int classId, int opaque)

DLLEXPORT JSValue *jsNewObjectClass(JSContext *ctx, uint32_t QJSClassId, void *opaque)

final

jsNewPromiseCapability → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

JSValue *jsNewPromiseCapability(JSContext *ctx, JSValue *resolving_funcs)

final

jsNewTypedArray → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<Uint8> buf, int len, int type)

JSValue *jsNewTypedArray(JSContext *ctx, const uint8_t *buf, size_t len, int32_t type)

final

jsNewTypedArrayOwned → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<Uint8> buf, int len, int type)

JSValue *jsNewTypedArrayOwned(JSContext *ctx, uint8_t *buf, size_t len, int32_t type)

final

jsNewWebNatives → Pointer<JSValue> Function(Pointer<JSContext> ctx)

JSValue *jsNewWebNatives(JSContext *ctx)

final

jsPropertyEnumGetAtom → int Function(Pointer<JSPropertyEnum> ptab, int i)

JSAtom jsPropertyEnumGetAtom(JSPropertyEnum *ptab, int i)

final

jsRunGC → void Function(Pointer<JSRuntime>)

DLLEXPORT void jsRunGC(JSRuntime *rt)

final

jsSetMaxStackSize → void Function(Pointer<JSRuntime>, int)

DLLEXPORT void jsSetMaxStackSize(JSRuntime *rt, size_t stack_size)

final

jsSetMemoryLimit → void Function(Pointer<JSRuntime>, int)

DLLEXPORT void jsSetMemoryLimit(JSRuntime *rt, size_t limit);

final

jsSetStripInfo → void Function(Pointer<JSRuntime>, int)

void jsSetStripInfo(JSRuntime *rt, int32_t flags)

final

jsTagIsFloat64 → int Function(int val)

DLLEXPORT bool jsTagIsFloat64(int32_t tag)

final

jsThrow → Pointer<JSValue> Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

DLLEXPORT JSValue *jsThrow(JSContext *ctx, JSValue *obj)

final

jsToBool → int Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

int32_t jsToBool(JSContext *ctx, JSValueConst *val)

final

jsToFloat64 → double Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

double jsToFloat64(JSContext *ctx, JSValueConst *val)

final

jsToInt64 → int Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

int64_t jsToFloat64(JSContext *ctx, JSValueConst *val)

final

jsUNDEFINED → Pointer<JSValue> Function()

JSValue *jsUNDEFINED()

final

jsValueGetPtr → int Function(Pointer<JSValue> val)

void *jsValueGetPtr(JSValue *val)

final

jsValueGetTag → int Function(Pointer<JSValue> val)

DLLEXPORT int32_t jsValueGetTag(JSValue *val)

final

jsValueToAtom → int Function(Pointer<JSContext> ctx, Pointer<JSValue> val)

JSAtom jsValueToAtom(JSContext *ctx, JSValueConst *val)

final

readModuleBytecodeFn → int Function(Pointer<JSContext>, int, Pointer<Uint8>, int)

DLLEXPORT int32_t jsReadModuleBytecode(JSContext *, size_t, uint8_t *, int32_t)

late, final

runtimeOpaques → Map<Pointer<JSRuntime>, _RuntimeOpaque>

final

setJSValueList → void Function(Pointer<JSValue> list, int i, Pointer<JSValue> val)

void setJSValueList(JSValue *list, int i, JSValue *val)

final

sizeOfJSValue → int

final

Functions

channelDispacher(Pointer<JSContext> ctx, int type, Pointer<JSValue> argv) → Pointer<JSValue>

jsCall(Pointer<JSContext> ctx, Pointer<JSValue> funcObj, Pointer<JSValue> thisObj, List<Pointer<JSValue>> argv) → Pointer<JSValue>

jsComputeMemoryUsage(Pointer<JSRuntime> rt) → JsMemoryUsage

jsEval(Pointer<JSContext> ctx, String input, String filename, int evalFlags) → Pointer<JSValue>

jsFreeRuntime(Pointer<JSRuntime> rt) → void

jsFreeValue(Pointer<JSContext> ctx, Pointer<JSValue> val, {bool free = true}) → void

jsFreeValueRT(Pointer<JSRuntime> rt, Pointer<JSValue> val, {bool free = true}) → void

jsNewClass(Pointer<JSContext> ctx, String name) → int

jsNewContext(Pointer<JSRuntime> rt) → Pointer<JSContext>

jsNewRuntime(_JSChannel callback, int timeout, ReceivePort port, {int? memoryLimit}) → Pointer<JSRuntime>

jsNewString(Pointer<JSContext> ctx, String str) → Pointer<JSValue>

jsReleaseRuntimeRefs(Pointer<JSRuntime> rt, Pointer<JSContext> ctx) → String?

Release Dart-side references while ctx is still valid.

jsRuntimeReferenceCount(Pointer<JSRuntime> rt) → int

jsToCString(Pointer<JSContext> ctx, Pointer<JSValue> val) → String

readBridgeStats() → Map<String, int>

readNativeHeapUsage() → NativeHeapUsage

Snapshot of NativeHeapUsage for the whole process.

trimNativeHeap() → bool

Ask the C allocator to return free pages to the OS, and report whether it released anything. Unsupported allocators return false.