private JsValue EvaluateModuleInternal(string code, string path, out JsValue moduleNamespace)
{
JsModuleRecord invalidModule = JsModuleRecord.Invalid;
string modulePath = path;
string moduleFullPath = GetModuleFullPath(invalidModule, modulePath);
JsValue result;
lock (_evaluationSynchronizer)
{
JsModuleRecord module = JsModuleRecord.Create(invalidModule, modulePath, moduleFullPath);
module.SetFetchImportedModuleCallback(_fetchImportedModuleCallback);
module.SetNotifyModuleReadyCallback(_notifyModuleReadyCallback);
ModuleJob job = new ModuleJob
{
Module = module,
Script = code,
SourceUrl = moduleFullPath,
IsParsed = false
};
_moduleJobQueue.Enqueue(job);
try
{
result = EvaluateModulesTree(out moduleNamespace);
JsValue exception = module.Exception;
if (exception.IsValid)
{
JsValue metadata = JsValue.Invalid;
if (!JsContext.HasException)
{
JsErrorHelpers.SetException(exception);
}
metadata = JsContext.GetAndClearExceptionWithMetadata();
throw JsErrorHelpers.CreateScriptExceptionFromMetadata(metadata);
}
}
finally
{
_moduleJobQueue.Clear();
module.Release();
}
}
return(result);
}
private JsValue CreateFunctionFromDelegate(Delegate value)
{
JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) =>
{
object[] processedArgs = MapToHostType(args.Skip(1).ToArray());
ParameterInfo[] parameters = value.GetMethodInfo().GetParameters();
JsValue undefinedValue = JsValue.Undefined;
ReflectionHelpers.FixArgumentTypes(ref processedArgs, parameters);
object result;
try
{
result = value.DynamicInvoke(processedArgs);
}
catch (Exception e)
{
JsValue errorValue = JsErrorHelpers.CreateError(
string.Format(Strings.Runtime_HostDelegateInvocationFailed, e.Message));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
JsValue resultValue = MapToScriptType(result);
return(resultValue);
};
_nativeFunctions.Add(nativeFunction);
JsValue functionValue = JsValue.CreateFunction(nativeFunction);
return(functionValue);
}
private void ProjectMethods(JsValue target, Type type, bool instance)
{
string typeName = type.FullName;
BindingFlags defaultBindingFlags = ReflectionHelpers.GetDefaultBindingFlags(instance);
MethodInfo[] methods = type.GetMethods(defaultBindingFlags);
IEnumerable <IGrouping <string, MethodInfo> > methodGroups = methods.GroupBy(m => m.Name);
foreach (IGrouping <string, MethodInfo> methodGroup in methodGroups)
{
string methodName = methodGroup.Key;
MethodInfo[] methodCandidates = methodGroup.ToArray();
JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) =>
{
JsValue thisValue = args[0];
JsValue undefinedValue = JsValue.Undefined;
object thisObj = null;
if (instance)
{
if (!thisValue.HasExternalData)
{
JsValue errorValue = JsErrorHelpers.CreateTypeError(
string.Format(Strings.Runtime_InvalidThisContextForHostObjectMethod, methodName));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
thisObj = MapToHostType(thisValue);
}
object[] processedArgs = MapToHostType(args.Skip(1).ToArray());
var bestFitMethod = (MethodInfo)ReflectionHelpers.GetBestFitMethod(
methodCandidates, processedArgs);
if (bestFitMethod == null)
{
JsValue errorValue = JsErrorHelpers.CreateReferenceError(
string.Format(Strings.Runtime_SuitableMethodOfHostObjectNotFound, methodName));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
ReflectionHelpers.FixArgumentTypes(ref processedArgs, bestFitMethod.GetParameters());
object result;
try
{
result = bestFitMethod.Invoke(thisObj, processedArgs);
}
catch (Exception e)
{
string errorMessage = instance ?
string.Format(
Strings.Runtime_HostObjectMethodInvocationFailed, methodName, e.Message)
:
string.Format(
Strings.Runtime_HostTypeMethodInvocationFailed, methodName, typeName, e.Message)
;
JsValue errorValue = JsErrorHelpers.CreateError(errorMessage);
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
JsValue resultValue = MapToScriptType(result);
return(resultValue);
};
_nativeFunctions.Add(nativeFunction);
JsValue methodValue = JsValue.CreateFunction(nativeFunction);
target.SetProperty(methodName, methodValue, true);
}
}
private void ProjectProperties(JsValue target, Type type, bool instance)
{
string typeName = type.FullName;
BindingFlags defaultBindingFlags = ReflectionHelpers.GetDefaultBindingFlags(instance);
PropertyInfo[] properties = type.GetProperties(defaultBindingFlags);
foreach (PropertyInfo property in properties)
{
string propertyName = property.Name;
JsValue descriptorValue = JsValue.CreateObject();
descriptorValue.SetProperty("enumerable", JsValue.True, true);
if (property.GetGetMethod() != null)
{
JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) =>
{
JsValue thisValue = args[0];
JsValue undefinedValue = JsValue.Undefined;
object thisObj = null;
if (instance)
{
if (!thisValue.HasExternalData)
{
JsValue errorValue = JsErrorHelpers.CreateTypeError(
string.Format(Strings.Runtime_InvalidThisContextForHostObjectProperty, propertyName));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
thisObj = MapToHostType(thisValue);
}
object result;
try
{
result = property.GetValue(thisObj, new object[0]);
}
catch (Exception e)
{
string errorMessage = instance ?
string.Format(
Strings.Runtime_HostObjectPropertyGettingFailed, propertyName, e.Message)
:
string.Format(
Strings.Runtime_HostTypePropertyGettingFailed, propertyName, typeName, e.Message)
;
JsValue errorValue = JsErrorHelpers.CreateError(errorMessage);
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
JsValue resultValue = MapToScriptType(result);
return(resultValue);
};
_nativeFunctions.Add(nativeFunction);
JsValue getMethodValue = JsValue.CreateFunction(nativeFunction);
descriptorValue.SetProperty("get", getMethodValue, true);
}
if (property.GetSetMethod() != null)
{
JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) =>
{
JsValue thisValue = args[0];
JsValue undefinedValue = JsValue.Undefined;
object thisObj = null;
if (instance)
{
if (!thisValue.HasExternalData)
{
JsValue errorValue = JsErrorHelpers.CreateTypeError(
string.Format(Strings.Runtime_InvalidThisContextForHostObjectProperty, propertyName));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
thisObj = MapToHostType(thisValue);
}
object value = MapToHostType(args.Skip(1).First());
ReflectionHelpers.FixPropertyValueType(ref value, property);
try
{
property.SetValue(thisObj, value, new object[0]);
}
catch (Exception e)
{
string errorMessage = instance ?
string.Format(
Strings.Runtime_HostObjectPropertySettingFailed, propertyName, e.Message)
:
string.Format(
Strings.Runtime_HostTypePropertySettingFailed, propertyName, typeName, e.Message)
;
JsValue errorValue = JsErrorHelpers.CreateError(errorMessage);
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
return(undefinedValue);
};
_nativeFunctions.Add(nativeFunction);
JsValue setMethodValue = JsValue.CreateFunction(nativeFunction);
descriptorValue.SetProperty("set", setMethodValue, true);
}
target.DefineProperty(propertyName, descriptorValue);
}
}
private JsValue CreateConstructor(Type type)
{
TypeInfo typeInfo = type.GetTypeInfo();
string typeName = type.FullName;
BindingFlags defaultBindingFlags = ReflectionHelpers.GetDefaultBindingFlags(true);
ConstructorInfo[] constructors = type.GetConstructors(defaultBindingFlags);
JsNativeFunction nativeFunction = (callee, isConstructCall, args, argCount, callbackData) =>
{
JsValue resultValue;
JsValue undefinedValue = JsValue.Undefined;
object[] processedArgs = MapToHostType(args.Skip(1).ToArray());
object result;
if (processedArgs.Length == 0 && typeInfo.IsValueType)
{
result = Activator.CreateInstance(type);
resultValue = MapToScriptType(result);
return(resultValue);
}
if (constructors.Length == 0)
{
JsValue errorValue = JsErrorHelpers.CreateError(
string.Format(Strings.Runtime_HostTypeConstructorNotFound, typeName));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
var bestFitConstructor = (ConstructorInfo)ReflectionHelpers.GetBestFitMethod(
constructors, processedArgs);
if (bestFitConstructor == null)
{
JsValue errorValue = JsErrorHelpers.CreateReferenceError(
string.Format(Strings.Runtime_SuitableConstructorOfHostTypeNotFound, typeName));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
ReflectionHelpers.FixArgumentTypes(ref processedArgs, bestFitConstructor.GetParameters());
try
{
result = bestFitConstructor.Invoke(processedArgs);
}
catch (Exception e)
{
JsValue errorValue = JsErrorHelpers.CreateError(
string.Format(Strings.Runtime_HostTypeConstructorInvocationFailed, typeName, e.Message));
JsErrorHelpers.SetException(errorValue);
return(undefinedValue);
}
resultValue = MapToScriptType(result);
return(resultValue);
};
_nativeFunctions.Add(nativeFunction);
JsValue constructorValue = JsValue.CreateFunction(nativeFunction);
return(constructorValue);
}
