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fix Promise reject cannot get Exception string.

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This commit is contained in:
ekibun
2021-01-25 19:27:00 +08:00
parent 6fb2c4776b
commit b790073045
9 changed files with 130 additions and 114 deletions
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120
lib/ffi.dart
View File

@@ -57,14 +57,14 @@ class JSTag {
final DynamicLibrary _qjsLib = Platform.environment['FLUTTER_TEST'] == 'true'
? (Platform.isWindows
? DynamicLibrary.open("test/build/Debug/ffiquickjs.dll")
? DynamicLibrary.open('test/build/Debug/ffiquickjs.dll')
: Platform.isMacOS
? DynamicLibrary.open("test/build/libffiquickjs.dylib")
: DynamicLibrary.open("test/build/libffiquickjs.so"))
? DynamicLibrary.open('test/build/libffiquickjs.dylib')
: DynamicLibrary.open('test/build/libffiquickjs.so'))
: (Platform.isWindows
? DynamicLibrary.open("flutter_qjs_plugin.dll")
? DynamicLibrary.open('flutter_qjs_plugin.dll')
: Platform.isAndroid
? DynamicLibrary.open("libqjs.so")
? DynamicLibrary.open('libqjs.so')
: DynamicLibrary.process());
/// JSValue *jsThrowInternalError(JSContext *ctx, char *message)
@@ -77,7 +77,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Pointer<Utf8>,
)>>("jsThrowInternalError")
)>>('jsThrowInternalError')
.asFunction();
Pointer jsThrowInternalError(Pointer ctx, String message) {
@@ -89,12 +89,12 @@ Pointer jsThrowInternalError(Pointer ctx, String message) {
/// JSValue *jsEXCEPTION()
final Pointer Function() jsEXCEPTION = _qjsLib
.lookup<NativeFunction<Pointer Function()>>("jsEXCEPTION")
.lookup<NativeFunction<Pointer Function()>>('jsEXCEPTION')
.asFunction();
/// JSValue *jsUNDEFINED()
final Pointer Function() jsUNDEFINED = _qjsLib
.lookup<NativeFunction<Pointer Function()>>("jsUNDEFINED")
.lookup<NativeFunction<Pointer Function()>>('jsUNDEFINED')
.asFunction();
typedef JSChannel = Pointer Function(Pointer ctx, int method, Pointer argv);
@@ -109,7 +109,7 @@ final Pointer Function(
NativeFunction<
Pointer Function(
Pointer,
)>>("jsNewRuntime")
)>>('jsNewRuntime')
.asFunction();
class RuntimeOpaque {
@@ -147,7 +147,7 @@ final void Function(
Void Function(
Pointer,
IntPtr,
)>>("jsSetMaxStackSize")
)>>('jsSetMaxStackSize')
.asFunction();
/// void jsFreeRuntime(JSRuntime *rt)
@@ -158,7 +158,7 @@ final void Function(
NativeFunction<
Void Function(
Pointer,
)>>("jsFreeRuntime")
)>>('jsFreeRuntime')
.asFunction();
void jsFreeRuntime(
@@ -181,7 +181,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Pointer,
)>>("jsNewCFunction")
)>>('jsNewCFunction')
.asFunction();
/// JSContext *jsNewContext(JSRuntime *rt)
@@ -192,14 +192,14 @@ final Pointer Function(
NativeFunction<
Pointer Function(
Pointer,
)>>("jsNewContext")
)>>('jsNewContext')
.asFunction();
Pointer jsNewContext(Pointer rt) {
var ctx = _jsNewContext(rt);
final runtimeOpaque = runtimeOpaques[rt];
if (runtimeOpaque == null) throw Exception("Runtime has been released!");
runtimeOpaque.dartObjectClassId = jsNewClass(ctx, "DartObject");
if (runtimeOpaque == null) throw Exception('Runtime has been released!');
runtimeOpaque.dartObjectClassId = jsNewClass(ctx, 'DartObject');
return ctx;
}
@@ -211,7 +211,7 @@ final void Function(
NativeFunction<
Void Function(
Pointer,
)>>("jsFreeContext")
)>>('jsFreeContext')
.asFunction();
/// JSRuntime *jsGetRuntime(JSContext *ctx)
@@ -222,7 +222,7 @@ final Pointer Function(
NativeFunction<
Pointer Function(
Pointer,
)>>("jsGetRuntime")
)>>('jsGetRuntime')
.asFunction();
/// JSValue *jsEval(JSContext *ctx, const char *input, size_t input_len, const char *filename, int eval_flags)
@@ -241,7 +241,7 @@ final Pointer Function(
IntPtr,
Pointer<Utf8>,
Int32,
)>>("jsEval")
)>>('jsEval')
.asFunction();
Pointer jsEval(
@@ -273,7 +273,7 @@ final int Function(
NativeFunction<
Int32 Function(
Pointer,
)>>("jsValueGetTag")
)>>('jsValueGetTag')
.asFunction();
/// void *jsValueGetPtr(JSValue *val)
@@ -284,7 +284,7 @@ final Pointer Function(
NativeFunction<
Pointer Function(
Pointer,
)>>("jsValueGetPtr")
)>>('jsValueGetPtr')
.asFunction();
/// DLLEXPORT bool jsTagIsFloat64(int32_t tag)
@@ -295,7 +295,7 @@ final int Function(
NativeFunction<
Int32 Function(
Int32,
)>>("jsTagIsFloat64")
)>>('jsTagIsFloat64')
.asFunction();
/// JSValue *jsNewBool(JSContext *ctx, int val)
@@ -308,7 +308,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Int32,
)>>("jsNewBool")
)>>('jsNewBool')
.asFunction();
/// JSValue *jsNewInt64(JSContext *ctx, int64_t val)
@@ -321,7 +321,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Int64,
)>>("jsNewInt64")
)>>('jsNewInt64')
.asFunction();
/// JSValue *jsNewFloat64(JSContext *ctx, double val)
@@ -334,7 +334,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Double,
)>>("jsNewFloat64")
)>>('jsNewFloat64')
.asFunction();
/// JSValue *jsNewString(JSContext *ctx, const char *str)
@@ -347,7 +347,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Pointer<Utf8>,
)>>("jsNewString")
)>>('jsNewString')
.asFunction();
Pointer jsNewString(
@@ -370,7 +370,7 @@ final Pointer Function(
Pointer,
Pointer<Uint8>,
IntPtr,
)>>("jsNewArrayBufferCopy")
)>>('jsNewArrayBufferCopy')
.asFunction();
/// JSValue *jsNewArray(JSContext *ctx)
@@ -381,7 +381,7 @@ final Pointer Function(
NativeFunction<
Pointer Function(
Pointer,
)>>("jsNewArray")
)>>('jsNewArray')
.asFunction();
/// JSValue *jsNewObject(JSContext *ctx)
@@ -392,7 +392,7 @@ final Pointer Function(
NativeFunction<
Pointer Function(
Pointer,
)>>("jsNewObject")
)>>('jsNewObject')
.asFunction();
/// void jsFreeValue(JSContext *ctx, JSValue *val, int32_t free)
@@ -407,7 +407,7 @@ final void Function(
Pointer,
Pointer,
Int32,
)>>("jsFreeValue")
)>>('jsFreeValue')
.asFunction();
void jsFreeValue(
@@ -430,7 +430,7 @@ final void Function(
Pointer,
Pointer,
Int32,
)>>("jsFreeValueRT")
)>>('jsFreeValueRT')
.asFunction();
void jsFreeValueRT(
@@ -451,7 +451,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Pointer,
)>>("jsDupValue")
)>>('jsDupValue')
.asFunction();
/// JSValue *jsDupValueRT(JSRuntime *rt, JSValue *v)
@@ -464,7 +464,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Pointer,
)>>("jsDupValueRT")
)>>('jsDupValueRT')
.asFunction();
/// int32_t jsToBool(JSContext *ctx, JSValueConst *val)
@@ -477,7 +477,7 @@ final int Function(
Int32 Function(
Pointer,
Pointer,
)>>("jsToBool")
)>>('jsToBool')
.asFunction();
/// int64_t jsToFloat64(JSContext *ctx, JSValueConst *val)
@@ -490,7 +490,7 @@ final int Function(
Int64 Function(
Pointer,
Pointer,
)>>("jsToInt64")
)>>('jsToInt64')
.asFunction();
/// double jsToFloat64(JSContext *ctx, JSValueConst *val)
@@ -503,7 +503,7 @@ final double Function(
Double Function(
Pointer,
Pointer,
)>>("jsToFloat64")
)>>('jsToFloat64')
.asFunction();
/// const char *jsToCString(JSContext *ctx, JSValue *val)
@@ -516,7 +516,7 @@ final Pointer<Utf8> Function(
Pointer<Utf8> Function(
Pointer,
Pointer,
)>>("jsToCString")
)>>('jsToCString')
.asFunction();
/// void jsFreeCString(JSContext *ctx, const char *ptr)
@@ -529,7 +529,7 @@ final void Function(
Void Function(
Pointer,
Pointer<Utf8>,
)>>("jsFreeCString")
)>>('jsFreeCString')
.asFunction();
String jsToCString(
@@ -537,7 +537,7 @@ String jsToCString(
Pointer val,
) {
var ptr = _jsToCString(ctx, val);
if (ptr.address == 0) throw Exception("JSValue cannot convert to string");
if (ptr.address == 0) throw Exception('JSValue cannot convert to string');
var str = Utf8.fromUtf8(ptr);
jsFreeCString(ctx, ptr);
return str;
@@ -553,7 +553,7 @@ final int Function(
Uint32 Function(
Pointer,
Pointer<Utf8>,
)>>("jsNewClass")
)>>('jsNewClass')
.asFunction();
int jsNewClass(
@@ -581,7 +581,7 @@ final Pointer Function(
Pointer,
Uint32,
IntPtr,
)>>("jsNewObjectClass")
)>>('jsNewObjectClass')
.asFunction();
/// DLLEXPORT void *jsGetObjectOpaque(JSValue *obj, uint32_t classid)
@@ -594,7 +594,7 @@ final int Function(
IntPtr Function(
Pointer,
Uint32,
)>>("jsGetObjectOpaque")
)>>('jsGetObjectOpaque')
.asFunction();
/// uint8_t *jsGetArrayBuffer(JSContext *ctx, size_t *psize, JSValueConst *obj)
@@ -609,7 +609,7 @@ final Pointer<Uint8> Function(
Pointer,
Pointer<IntPtr>,
Pointer,
)>>("jsGetArrayBuffer")
)>>('jsGetArrayBuffer')
.asFunction();
/// int32_t jsIsFunction(JSContext *ctx, JSValueConst *val)
@@ -622,7 +622,7 @@ final int Function(
Int32 Function(
Pointer,
Pointer,
)>>("jsIsFunction")
)>>('jsIsFunction')
.asFunction();
/// int32_t jsIsPromise(JSContext *ctx, JSValueConst *val)
@@ -635,7 +635,7 @@ final int Function(
Int32 Function(
Pointer,
Pointer,
)>>("jsIsPromise")
)>>('jsIsPromise')
.asFunction();
/// int32_t jsIsArray(JSContext *ctx, JSValueConst *val)
@@ -648,7 +648,7 @@ final int Function(
Int32 Function(
Pointer,
Pointer,
)>>("jsIsArray")
)>>('jsIsArray')
.asFunction();
/// JSValue *jsGetProperty(JSContext *ctx, JSValueConst *this_obj,
@@ -664,7 +664,7 @@ final Pointer Function(
Pointer,
Pointer,
Uint32,
)>>("jsGetProperty")
)>>('jsGetProperty')
.asFunction();
/// int jsDefinePropertyValue(JSContext *ctx, JSValueConst *this_obj,
@@ -684,7 +684,7 @@ final int Function(
Uint32,
Pointer,
Int32,
)>>("jsDefinePropertyValue")
)>>('jsDefinePropertyValue')
.asFunction();
/// void jsFreeAtom(JSContext *ctx, JSAtom v)
@@ -697,7 +697,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Uint32,
)>>("jsFreeAtom")
)>>('jsFreeAtom')
.asFunction();
/// JSAtom jsValueToAtom(JSContext *ctx, JSValueConst *val)
@@ -710,7 +710,7 @@ final int Function(
Uint32 Function(
Pointer,
Pointer,
)>>("jsValueToAtom")
)>>('jsValueToAtom')
.asFunction();
/// JSValue *jsAtomToValue(JSContext *ctx, JSAtom val)
@@ -723,7 +723,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Uint32,
)>>("jsAtomToValue")
)>>('jsAtomToValue')
.asFunction();
/// int jsGetOwnPropertyNames(JSContext *ctx, JSPropertyEnum **ptab,
@@ -743,7 +743,7 @@ final int Function(
Pointer<Uint32>,
Pointer,
Int32,
)>>("jsGetOwnPropertyNames")
)>>('jsGetOwnPropertyNames')
.asFunction();
/// JSAtom jsPropertyEnumGetAtom(JSPropertyEnum *ptab, int i)
@@ -756,12 +756,12 @@ final int Function(
Uint32 Function(
Pointer,
Int32,
)>>("jsPropertyEnumGetAtom")
)>>('jsPropertyEnumGetAtom')
.asFunction();
/// uint32_t sizeOfJSValue()
final int Function() _sizeOfJSValue = _qjsLib
.lookup<NativeFunction<Uint32 Function()>>("sizeOfJSValue")
.lookup<NativeFunction<Uint32 Function()>>('sizeOfJSValue')
.asFunction();
final sizeOfJSValue = _sizeOfJSValue();
@@ -778,7 +778,7 @@ final void Function(
Pointer,
Uint32,
Pointer,
)>>("setJSValueList")
)>>('setJSValueList')
.asFunction();
/// JSValue *jsCall(JSContext *ctx, JSValueConst *func_obj, JSValueConst *this_obj,
@@ -798,7 +798,7 @@ final Pointer Function(
Pointer,
Int32,
Pointer,
)>>("jsCall")
)>>('jsCall')
.asFunction();
Pointer jsCall(
@@ -834,7 +834,7 @@ final int Function(
NativeFunction<
Int32 Function(
Pointer,
)>>("jsIsException")
)>>('jsIsException')
.asFunction();
/// JSValue *jsGetException(JSContext *ctx)
@@ -845,7 +845,7 @@ final Pointer Function(
NativeFunction<
Pointer Function(
Pointer,
)>>("jsGetException")
)>>('jsGetException')
.asFunction();
/// int jsExecutePendingJob(JSRuntime *rt)
@@ -856,7 +856,7 @@ final int Function(
NativeFunction<
Int32 Function(
Pointer,
)>>("jsExecutePendingJob")
)>>('jsExecutePendingJob')
.asFunction();
/// JSValue *jsNewPromiseCapability(JSContext *ctx, JSValue *resolving_funcs)
@@ -869,7 +869,7 @@ final Pointer Function(
Pointer Function(
Pointer,
Pointer,
)>>("jsNewPromiseCapability")
)>>('jsNewPromiseCapability')
.asFunction();
/// void jsFree(JSContext *ctx, void *ptab)
@@ -882,5 +882,5 @@ final void Function(
Void Function(
Pointer,
Pointer,
)>>("jsFree")
)>>('jsFree')
.asFunction();

41
lib/flutter_qjs.dart
View File

@@ -50,20 +50,25 @@ class FlutterQjs {
case JSChannelType.METHON:
final pdata = ptr.cast<Pointer>();
final argc = pdata.elementAt(1).value.cast<Int32>().value;
List args = [];
List pargs = <Pointer>[];
for (var i = 0; i < argc; i++) {
args.add(jsToDart(
ctx,
Pointer.fromAddress(
pdata.elementAt(2).value.address + sizeOfJSValue * i,
)));
pargs.add(Pointer.fromAddress(
pdata.elementAt(2).value.address + sizeOfJSValue * i,
));
}
final thisVal = jsToDart(ctx, pdata.elementAt(0).value);
final pThis = pdata.elementAt(0).value;
JSInvokable func = jsToDart(ctx, pdata.elementAt(3).value);
final ret = func.invoke(args, thisVal);
return dartToJs(ctx, ret);
if (func is NativeJSInvokable) {
return dartToJs(ctx, func.invokeNative(ctx, pThis, pargs));
}
return dartToJs(
ctx,
func.invoke(
pargs.map((e) => jsToDart(ctx, e)).toList(),
jsToDart(ctx, pThis),
));
case JSChannelType.MODULE:
if (moduleHandler == null) throw Exception("No ModuleHandler");
if (moduleHandler == null) throw Exception('No ModuleHandler');
var ret = Utf8.toUtf8(moduleHandler(
Utf8.fromUtf8(ptr.cast<Utf8>()),
));
@@ -72,11 +77,11 @@ class FlutterQjs {
});
return ret;
case JSChannelType.PROMISE_TRACK:
final errStr = parseJSException(ctx, perr: ptr);
final errStr = parseJSException(ctx, ptr);
if (hostPromiseRejectionHandler != null) {
hostPromiseRejectionHandler(errStr);
} else {
print("unhandled promise rejection: $errStr");
print('unhandled promise rejection: $errStr');
}
return Pointer.fromAddress(0);
case JSChannelType.FREE_OBJECT:
@@ -86,15 +91,15 @@ class FlutterQjs {
runtimeOpaques[rt]?.ref?.remove(obj);
return Pointer.fromAddress(0);
}
throw Exception("call channel with wrong type");
throw Exception('call channel with wrong type');
} catch (e, stack) {
final errStr = e.toString() + "\n" + stack.toString();
final errStr = e.toString() + '\n' + stack.toString();
if (type == JSChannelType.FREE_OBJECT) {
print("DartObject release error: " + errStr);
print('DartObject release error: ' + errStr);
return Pointer.fromAddress(0);
}
if (type == JSChannelType.MODULE) {
print("host Promise Rejection Handler error: " + errStr);
print('host Promise Rejection Handler error: ' + errStr);
return Pointer.fromAddress(0);
}
var err = jsThrowInternalError(
@@ -143,12 +148,12 @@ class FlutterQjs {
var jsval = jsEval(
_ctx,
command,
name ?? "<eval>",
name ?? '<eval>',
evalFlags ?? JSEvalFlag.GLOBAL,
);
if (jsIsException(jsval) != 0) {
jsFreeValue(_ctx, jsval);
throw Exception(parseJSException(_ctx));
throw parseJSException(_ctx);
}
var result = jsToDart(_ctx, jsval);
jsFreeValue(_ctx, jsval);

12
lib/isolate.dart
View File

@@ -35,7 +35,7 @@ void _runJsIsolate(Map spawnMessage) async {
'ptr': ptr.address,
});
while (ptr.value.address == 0) sleep(Duration.zero);
if (ptr.value.address == -1) throw Exception("Module Not found");
if (ptr.value.address == -1) throw Exception('Module Not found');
var ret = Utf8.fromUtf8(ptr.value);
sendPort.send({
'type': 'release',
@@ -58,7 +58,7 @@ void _runJsIsolate(Map spawnMessage) async {
);
break;
case 'call':
data = JSFunction.fromAddress(
data = await JSFunction.fromAddress(
Pointer.fromAddress(msg['ctx']),
Pointer.fromAddress(msg['val']),
).invoke(
@@ -79,7 +79,7 @@ void _runJsIsolate(Map spawnMessage) async {
} catch (e, stack) {
if (msgPort != null)
msgPort.send({
'error': e.toString() + "\n" + stack.toString(),
'error': e.toString() + '\n' + stack.toString(),
});
}
});
@@ -135,12 +135,12 @@ class IsolateQjs {
if (hostPromiseRejectionHandler != null) {
hostPromiseRejectionHandler(errStr);
} else {
print("unhandled promise rejection: $errStr");
print('unhandled promise rejection: $errStr');
}
} catch (e, stack) {
print("host Promise Rejection Handler error: " +
print('host Promise Rejection Handler error: ' +
e.toString() +
"\n" +
'\n' +
stack.toString());
}
break;

46
lib/wrapper.dart
View File

@@ -32,6 +32,20 @@ abstract class JSInvokable {
}
}
class NativeJSInvokable extends JSInvokable {
dynamic Function(Pointer ctx, Pointer thisVal, List<Pointer> args) _func;
NativeJSInvokable(this._func);
@override
dynamic invoke(List args, [dynamic thisVal]) {
throw UnimplementedError('use invokeNative instead.');
}
invokeNative(Pointer ctx, Pointer thisVal, List<Pointer> args) {
_func(ctx, thisVal, args);
}
}
class _DartFunction extends JSInvokable {
Function _func;
_DartFunction(this._func);
@@ -40,7 +54,7 @@ class _DartFunction extends JSInvokable {
invoke(List args, [thisVal]) {
/// wrap this into function
final passThis =
RegExp("{.*thisVal.*}").hasMatch(_func.runtimeType.toString());
RegExp('{.*thisVal.*}').hasMatch(_func.runtimeType.toString());
return Function.apply(_func, args, passThis ? {#thisVal: thisVal} : null);
}
}
@@ -112,7 +126,7 @@ class JSFunction extends JSObject implements JSInvokable {
bool isException = jsIsException(jsRet) != 0;
if (isException) {
jsFreeValue(_ctx, jsRet);
throw Exception(parseJSException(_ctx));
throw parseJSException(_ctx);
}
var ret = jsToDart(_ctx, jsRet);
jsFreeValue(_ctx, jsRet);
@@ -180,7 +194,7 @@ class IsolateFunction extends JSInvokable implements DartReleasable {
final JSInvokable invokable = JSInvokable.wrap(func);
final funcPort = ReceivePort();
funcPort.listen((msg) async {
if (msg == "close") return funcPort.close();
if (msg == 'close') return funcPort.close();
var data;
SendPort msgPort = msg['port'];
try {
@@ -194,7 +208,7 @@ class IsolateFunction extends JSInvokable implements DartReleasable {
} catch (e, stack) {
if (msgPort != null)
msgPort.send({
'error': e.toString() + "\n" + stack.toString(),
'error': e.toString() + '\n' + stack.toString(),
});
}
});
@@ -221,7 +235,7 @@ class IsolateFunction extends JSInvokable implements DartReleasable {
@override
void release() {
if (func == null) return;
func.send("close");
func.send('close');
func = null;
}
}
@@ -275,7 +289,7 @@ dynamic encodeData(dynamic data, {Map<dynamic, dynamic> cache}) {
futurePort.first.then((port) {
futurePort.close();
(port as SendPort)
.send({'error': e.toString() + "\n" + stack.toString()});
.send({'error': e.toString() + '\n' + stack.toString()});
});
});
return {
@@ -344,12 +358,12 @@ dynamic decodeData(dynamic data, SendPort port, {Map<dynamic, dynamic> cache}) {
return data;
}
String parseJSException(Pointer ctx, {Pointer perr}) {
String parseJSException(Pointer ctx, [Pointer perr]) {
final e = perr ?? jsGetException(ctx);
var err = jsToCString(ctx, e);
if (jsValueGetTag(e) == JSTag.OBJECT) {
Pointer stack = jsGetPropertyValue(ctx, e, "stack");
Pointer stack = jsGetPropertyValue(ctx, e, 'stack');
if (jsToBool(ctx, stack) != 0) {
err += '\n' + jsToCString(ctx, stack);
}
@@ -409,7 +423,7 @@ Pointer dartToJs(Pointer ctx, dynamic val, {Map<dynamic, dynamic> cache}) {
val.then((value) {
res(value);
}, onError: (e, stack) {
rej(e.toString() + "\n" + stack.toString());
rej(e.toString() + '\n' + stack.toString());
});
return ret;
}
@@ -498,7 +512,7 @@ dynamic jsToDart(Pointer ctx, Pointer val, {Map<int, dynamic> cache}) {
if (jsIsFunction(ctx, val) != 0) {
return JSFunction(ctx, val);
} else if (jsIsPromise(ctx, val) != 0) {
Pointer jsPromiseThen = jsGetPropertyValue(ctx, val, "then");
Pointer jsPromiseThen = jsGetPropertyValue(ctx, val, 'then');
JSFunction promiseThen = jsToDart(ctx, jsPromiseThen, cache: cache);
jsFreeValue(ctx, jsPromiseThen);
var completer = Completer();
@@ -507,16 +521,18 @@ dynamic jsToDart(Pointer ctx, Pointer val, {Map<int, dynamic> cache}) {
(v) {
if (!completer.isCompleted) completer.complete(v);
},
(e) {
if (!completer.isCompleted) completer.completeError(e);
},
NativeJSInvokable((ctx, thisVal, args) {
if (!completer.isCompleted)
completer
.completeError(parseJSException(ctx, args[0]));
}),
], JSObject.fromAddress(ctx, val));
bool isException = jsIsException(jsRet) != 0;
jsFreeValue(ctx, jsRet);
if (isException) throw Exception(parseJSException(ctx));
if (isException) throw parseJSException(ctx);
return completer.future;
} else if (jsIsArray(ctx, val) != 0) {
Pointer jslength = jsGetPropertyValue(ctx, val, "length");
Pointer jslength = jsGetPropertyValue(ctx, val, 'length');
int length = jsToInt64(ctx, jslength);
List<dynamic> ret = [];
cache[valptr] = ret;