split project with app & doric module

doric-Qt/example/doric/engine/v8/JSValueHelper.cpp

@@ -0,0 +1,95 @@
+#include "JSValueHelper.h"
+
+#include <QJsonDocument>
+#include <QJsonObject>
+
+std::string JS2String(v8::Local<v8::Value> object) {
+  v8::Isolate *isolate = v8::Isolate::GetCurrent();
+  v8::HandleScope handleScope(isolate);
+  v8::Local<v8::Context> context = isolate->GetEnteredOrMicrotaskContext();
+  if (object->IsString() || object->IsRegExp() || object->IsFunction()) {
+    v8::String::Utf8Value utf8(isolate, object);
+    return std::string(*utf8);
+  }
+  if (object->IsObject()) {
+    v8::MaybeLocal<v8::String> str = v8::JSON::Stringify(
+        context, object->ToObject(context).ToLocalChecked());
+    if (str.IsEmpty()) {
+      return "<string conversion failed>";
+    }
+    v8::Local<v8::String> s = str.ToLocalChecked();
+    v8::String::Utf8Value str2(isolate, s);
+    return std::string(*str2 ? *str2 : "<string conversion failed>");
+  }
+
+  v8::String::Utf8Value str(
+      isolate, v8::JSON::Stringify(context, object).ToLocalChecked());
+  return std::string(*str ? *str : "<string conversion failed>");
+}
+
+double JS2Number(v8::Local<v8::Value> value) {
+  v8::HandleScope handleScope(v8::Isolate::GetCurrent());
+  v8::Local<v8::Context> context =
+      v8::Isolate::GetCurrent()->GetCurrentContext();
+  if (value->IsNumber()) {
+    return value->ToNumber(context).ToLocalChecked()->Value();
+  } else {
+    return 0;
+  }
+}
+
+bool JS2Bool(v8::Local<v8::Value> value) {
+  v8::HandleScope handleScope(v8::Isolate::GetCurrent());
+  if (value->IsBoolean()) {
+    return value->ToBoolean(v8::Isolate::GetCurrent())->Value();
+  } else {
+    return false;
+  }
+}
+
+v8::Local<v8::Value> String2JS(std::string string) {
+  v8::Isolate *isolate = v8::Isolate::GetCurrent();
+  v8::EscapableHandleScope handleScope(isolate);
+  v8::Local<v8::Context> context = isolate->GetEnteredOrMicrotaskContext();
+  v8::Local<v8::String> jsString = NewV8String(string.c_str());
+
+  v8::Local<v8::Value> ret =
+      v8::JSON::Parse(context, jsString).ToLocalChecked();
+
+  return handleScope.Escape(ret);
+}
+
+v8::Local<v8::Value> Variant2JS(QVariant variant) {
+  v8::Isolate *isolate = v8::Isolate::GetCurrent();
+
+  v8::EscapableHandleScope handle_scope(isolate);
+  v8::Local<v8::Context> context = isolate->GetEnteredOrMicrotaskContext();
+
+  v8::Local<v8::Value> jsValue;
+  if (variant.type() == QVariant::String) {
+    jsValue = NewV8String(variant.toString().toUtf8().constData());
+  } else if (variant.type() == QVariant::Map) {
+    QMap<QString, QVariant> map = variant.toMap();
+
+    QJsonObject jsonObject;
+    foreach (QString key, map.keys()) {
+      QVariant value = map.value(key);
+      jsonObject.insert(key, QJsonValue::fromVariant(value));
+    }
+    QJsonDocument doc(jsonObject);
+    QString strJson(doc.toJson(QJsonDocument::Compact));
+    jsValue = String2JS(strJson.toUtf8().constData());
+  } else if (variant.type() == QVariant::StringList) {
+    QStringList list = variant.toStringList();
+    v8::Handle<v8::Array> array = v8::Array::New(isolate, list.size());
+    for (int i = 0; i != list.size(); i++) {
+      v8::Local<v8::Value> value = NewV8String(list.at(i).toUtf8().constData());
+      auto result = array->Set(context, i, value);
+      result.ToChecked();
+    }
+    jsValue = array;
+  } else if (variant.type() == QVariant::Int) {
+    jsValue = v8::Number::New(isolate, variant.toDouble());
+  }
+  return handle_scope.Escape(jsValue);
+}