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add v8 executor & default executor

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王劲鹏
2021-03-31 10:36:45 +08:00
committed by osborn
parent 500df331fc
commit 8bb7fdb66b
11 changed files with 570 additions and 151 deletions
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152
doric-Qt/doric/engine/DoricNativeJSE.cpp
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@@ -5,159 +5,29 @@
#include "DoricNativeJSE.h"
DoricNativeJSE::DoricNativeJSE() {
mJSEngine.installExtensions(QJSEngine::AllExtensions);
std::unique_ptr<v8::Platform> platform = v8::platform::NewDefaultPlatform();
v8::V8::InitializePlatform(platform.get());
v8::V8::Initialize();
v8::Isolate::CreateParams create_params;
create_params.array_buffer_allocator =
v8::ArrayBuffer::Allocator::NewDefaultAllocator();
v8::Isolate *isolate = v8::Isolate::New(create_params);
{
v8::Isolate::Scope isolate_scope(isolate);
// Create a stack-allocated handle scope.
v8::HandleScope handle_scope(isolate);
// Create a new context.
v8::Local<v8::Context> context = v8::Context::New(isolate);
// Enter the context for compiling and running the hello world script.
v8::Context::Scope context_scope(context);
{
// Create a string containing the JavaScript source code.
v8::Local<v8::String> source =
v8::String::NewFromUtf8Literal(isolate, "'Hello' + ', World!'");
// Compile the source code.
v8::Local<v8::Script> script =
v8::Script::Compile(context, source).ToLocalChecked();
// Run the script to get the result.
v8::Local<v8::Value> result = script->Run(context).ToLocalChecked();
// Convert the result to an UTF8 string and print it.
v8::String::Utf8Value utf8(isolate, result);
printf("%s\n", *utf8);
}
{
// Use the JavaScript API to generate a WebAssembly module.
//
// |bytes| contains the binary format for the following module:
//
// (func (export "add") (param i32 i32) (result i32)
// get_local 0
// get_local 1
// i32.add)
//
const char csource[] = R"(
let bytes = new Uint8Array([
0x00, 0x61, 0x73, 0x6d, 0x01, 0x00, 0x00, 0x00, 0x01, 0x07, 0x01,
0x60, 0x02, 0x7f, 0x7f, 0x01, 0x7f, 0x03, 0x02, 0x01, 0x00, 0x07,
0x07, 0x01, 0x03, 0x61, 0x64, 0x64, 0x00, 0x00, 0x0a, 0x09, 0x01,
0x07, 0x00, 0x20, 0x00, 0x20, 0x01, 0x6a, 0x0b
]);
let module = new WebAssembly.Module(bytes);
let instance = new WebAssembly.Instance(module);
instance.exports.add(3, 4);
)";
// Create a string containing the JavaScript source code.
v8::Local<v8::String> source =
v8::String::NewFromUtf8Literal(isolate, csource);
// Compile the source code.
v8::Local<v8::Script> script =
v8::Script::Compile(context, source).ToLocalChecked();
// Run the script to get the result.
v8::Local<v8::Value> result = script->Run(context).ToLocalChecked();
// Convert the result to a uint32 and print it.
uint32_t number = result->Uint32Value(context).ToChecked();
printf("3 + 4 = %u\n", number);
}
}
// Dispose the isolate and tear down V8.
isolate->Dispose();
v8::V8::Dispose();
v8::V8::ShutdownPlatform();
delete create_params.array_buffer_allocator;
v8Executor = new V8Executor();
// nativeExecutor = new NativeExecutor();
}
QString DoricNativeJSE::loadJS(QString script, QString source) {
return mJSEngine.evaluate(script, source).toString();
// return nativeExecutor->loadJS(script, source);
return v8Executor->loadJS(script, source);
}
void DoricNativeJSE::injectGlobalJSObject(QString name, QObject *object) {
QJSValue jsObject = mJSEngine.newQObject(object);
QList<QByteArray> propertyNames = object->dynamicPropertyNames();
foreach (QByteArray propertyName, propertyNames) {
QString key = QString::fromStdString(propertyName.toStdString());
if (key == "undefined") {
} else {
jsObject.setProperty(
key, mJSEngine.toScriptValue(object->property(propertyName)));
}
}
mJSEngine.globalObject().setProperty(name, jsObject);
// nativeExecutor->injectGlobalJSObject(name, object);
v8Executor->injectGlobalJSObject(name, object);
}
void DoricNativeJSE::injectGlobalJSFunction(QString name, QObject *function,
QString property) {
QJSValue functionObject = mJSEngine.newQObject(function);
mJSEngine.globalObject().setProperty(name, functionObject.property(property));
// nativeExecutor->injectGlobalJSFunction(name, function, property);
// v8Executor->injectGlobalJSFunction(name, function, property);
}
QJSValue DoricNativeJSE::invokeObject(QString objectName, QString functionName,
QVariantList arguments) {
QJSValue object = mJSEngine.evaluate(objectName);
QJSValue function = object.property(functionName);
QJSValueList args;
foreach (QVariant variant, arguments) {
if (variant.type() == QVariant::String) {
args.push_back(QJSValue(variant.toString()));
} else if (variant.type() == QVariant::Map) {
QJSValue arg = mJSEngine.newObject();
QMap<QString, QVariant> map = variant.toMap();
foreach (QString key, map.keys()) {
QVariant value = map.value(key);
if (value.type() == QVariant::String) {
arg.setProperty(key, value.toString());
} else if (value.type() == QVariant::Int) {
arg.setProperty(key, value.toInt());
}
}
args.push_back(arg);
} else if (variant.type() == QVariant::StringList) {
QStringList array = variant.toStringList();
QJSValue arg = mJSEngine.newArray(array.size());
for (int i = 0; i != array.size(); i++) {
arg.setProperty(i, array.at(i));
}
args.push_back(arg);
}
}
QJSValue result = function.call(args);
if (result.isError()) {
qCritical() << "++++++++++++++++++++++++++++++++++++++++++++++++";
qCritical() << result.toString();
QStringList stacktraces = result.property("stack").toString().split("\n");
foreach (QString stacktrace, stacktraces) { qDebug() << stacktrace; }
qCritical() << "------------------------------------------------";
}
return result;
return QJSValue::UndefinedValue;
// return nativeExecutor->invokeObject(objectName, functionName, arguments);
// return v8Executor->invokeObject(objectName, functionName, arguments);
}