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v0.3.2

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ekibun
2021-01-26 01:20:25 +08:00
parent b790073045
commit 896d563ba8
9 changed files with 166 additions and 89 deletions
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116
lib/wrapper.dart
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@@ -12,6 +12,37 @@ import 'dart:typed_data';
import 'package:ffi/ffi.dart';
import 'ffi.dart';
class JSError {
String message;
String stack;
JSError(message, [stack]) {
if (message is JSError) {
this.message = message.message;
this.stack = message.stack;
} else {
this.message = message.toString();
this.stack = (stack ?? StackTrace.current).toString();
}
}
@override
String toString() {
return stack == null ? message.toString() : "$message\n$stack";
}
static JSError decode(Map obj) {
if (obj.containsKey('__js_error'))
return JSError(obj['__js_error'], obj['__js_error_stack']);
return null;
}
Map encode() {
return {
'__js_error': message,
'__js_error_stack': stack,
};
}
}
abstract class JSInvokable {
dynamic invoke(List args, [dynamic thisVal]);
@@ -32,19 +63,19 @@ abstract class JSInvokable {
}
}
class NativeJSInvokable extends JSInvokable {
dynamic Function(Pointer ctx, Pointer thisVal, List<Pointer> args) _func;
NativeJSInvokable(this._func);
// 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.');
}
// @override
// dynamic invoke(List args, [dynamic thisVal]) {
// throw UnimplementedError('use invokeNative instead.');
// }
invokeNative(Pointer ctx, Pointer thisVal, List<Pointer> args) {
_func(ctx, thisVal, args);
}
}
// invokeNative(Pointer ctx, Pointer thisVal, List<Pointer> args) {
// _func(ctx, thisVal, args);
// }
// }
class _DartFunction extends JSInvokable {
Function _func;
@@ -181,7 +212,7 @@ class IsolateJSFunction extends JSInvokable {
if (result.containsKey('data'))
return decodeData(result['data'], port);
else
throw result['error'];
throw decodeData(result['error'], port);
}
}
@@ -205,10 +236,10 @@ class IsolateFunction extends JSInvokable implements DartReleasable {
msgPort.send({
'data': encodeData(data),
});
} catch (e, stack) {
} catch (e) {
if (msgPort != null)
msgPort.send({
'error': e.toString() + '\n' + stack.toString(),
'error': encodeData(e),
});
}
});
@@ -229,7 +260,7 @@ class IsolateFunction extends JSInvokable implements DartReleasable {
if (result.containsKey('data'))
return decodeData(result['data'], _port);
else
throw result['error'];
throw decodeData(result['error'], _port);
}
@override
@@ -242,6 +273,7 @@ class IsolateFunction extends JSInvokable implements DartReleasable {
dynamic encodeData(dynamic data, {Map<dynamic, dynamic> cache}) {
if (cache == null) cache = Map();
if (data is JSError) return data.encode();
if (cache.containsKey(data)) return cache[data];
if (data is List) {
var ret = [];
@@ -285,11 +317,10 @@ dynamic encodeData(dynamic data, {Map<dynamic, dynamic> cache}) {
futurePort.close();
(port as SendPort).send({'data': encodeData(value)});
});
}, onError: (e, stack) {
}, onError: (e) {
futurePort.first.then((port) {
futurePort.close();
(port as SendPort)
.send({'error': e.toString() + '\n' + stack.toString()});
(port as SendPort).send({'error': encodeData(e)});
});
});
return {
@@ -311,6 +342,8 @@ dynamic decodeData(dynamic data, SendPort port, {Map<dynamic, dynamic> cache}) {
return ret;
}
if (data is Map) {
final jsException = JSError.decode(data);
if (jsException != null) return jsException;
if (data.containsKey('__js_obj_val')) {
int ctx = data['__js_obj_ctx'];
int val = data['__js_obj_val'];
@@ -340,9 +373,9 @@ dynamic decodeData(dynamic data, SendPort port, {Map<dynamic, dynamic> cache}) {
futurePort.first.then((value) {
futurePort.close();
if (value['error'] != null) {
futureCompleter.completeError(value['error']);
futureCompleter.completeError(decodeData(value['error'], port));
} else {
futureCompleter.complete(value['data']);
futureCompleter.complete(decodeData(value['data'], port));
}
});
return futureCompleter.future;
@@ -358,16 +391,13 @@ dynamic decodeData(dynamic data, SendPort port, {Map<dynamic, dynamic> cache}) {
return data;
}
String parseJSException(Pointer ctx, [Pointer perr]) {
dynamic 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');
if (jsToBool(ctx, stack) != 0) {
err += '\n' + jsToCString(ctx, stack);
}
jsFreeValue(ctx, stack);
var err;
try {
err = jsToDart(ctx, e);
} catch (exception) {
err = exception;
}
if (perr == null) jsFreeValue(ctx, e);
return err;
@@ -409,6 +439,13 @@ Pointer jsGetPropertyValue(
Pointer dartToJs(Pointer ctx, dynamic val, {Map<dynamic, dynamic> cache}) {
if (val == null) return jsUNDEFINED();
if (val is JSError) {
final ret = jsNewError(ctx);
definePropertyValue(ctx, ret, "name", "");
definePropertyValue(ctx, ret, "message", val.message);
definePropertyValue(ctx, ret, "stack", val.stack);
return ret;
}
if (val is JSObject) return jsDupValue(ctx, val._val);
if (val is Future) {
var resolvingFunc = allocate<Uint8>(count: sizeOfJSValue * 2);
@@ -422,8 +459,8 @@ Pointer dartToJs(Pointer ctx, dynamic val, {Map<dynamic, dynamic> cache}) {
free(resolvingFunc);
val.then((value) {
res(value);
}, onError: (e, stack) {
rej(e.toString() + '\n' + stack.toString());
}, onError: (e) {
rej(e);
});
return ret;
}
@@ -511,6 +548,15 @@ dynamic jsToDart(Pointer ctx, Pointer val, {Map<int, dynamic> cache}) {
}
if (jsIsFunction(ctx, val) != 0) {
return JSFunction(ctx, val);
} else if (jsIsError(ctx, val) != 0) {
final err = jsToCString(ctx, val);
final pstack = jsGetPropertyValue(ctx, val, 'stack');
var stack;
if (jsToBool(ctx, pstack) != 0) {
stack = jsToCString(ctx, pstack);
}
jsFreeValue(ctx, pstack);
return JSError(err, stack);
} else if (jsIsPromise(ctx, val) != 0) {
Pointer jsPromiseThen = jsGetPropertyValue(ctx, val, 'then');
JSFunction promiseThen = jsToDart(ctx, jsPromiseThen, cache: cache);
@@ -521,11 +567,9 @@ dynamic jsToDart(Pointer ctx, Pointer val, {Map<int, dynamic> cache}) {
(v) {
if (!completer.isCompleted) completer.complete(v);
},
NativeJSInvokable((ctx, thisVal, args) {
if (!completer.isCompleted)
completer
.completeError(parseJSException(ctx, args[0]));
}),
(e) {
if (!completer.isCompleted) completer.completeError(e);
},
], JSObject.fromAddress(ctx, val));
bool isException = jsIsException(jsRet) != 0;
jsFreeValue(ctx, jsRet);