public void Dispose()
{
if (!disposed)
{
RuntimeFunctionInvocation parent = this.Parent;
bool isSuspendedDispose = parent != null && previous != parent;
if (current == this)
{
current = previous;
}
if (this.SuspendOnDispose)
{
if (parent != null)
{
parent.childCount++;
}
}
else if (childCount == 0)
{
disposed = true;
if (isSuspendedDispose && parent.childCount == 0)
{
parent.Dispose();
}
}
previous = null;
}
}
public static RuntimeFunction GetExecutingFunction()
{
RuntimeFunctionInvocation current = RuntimeFunctionInvocation.Current;
if (current == null)
{
return(null);
}
return(current.FunctionObject);
}
public override EcmaValue Call(EcmaValue thisValue, params EcmaValue[] arguments)
{
Guard.ArgumentNotNull(arguments, "arguments");
if (this.HomeObject == this)
{
throw new EcmaTypeErrorException(InternalString.Error.MustCallAsConstructor);
}
using (RuntimeFunctionInvocation invocation = new RuntimeFunctionInvocation(this, thisValue, arguments)) {
return(Invoke(invocation, arguments));
}
}
private EcmaValue GetCurrentArguments()
{
RuntimeFunctionInvocation invocation = RuntimeFunctionInvocation.Current;
for (; invocation != null; invocation = invocation.Parent)
{
if (invocation.FunctionObject == this)
{
return(invocation.Arguments);
}
}
return(EcmaValue.Null);
}
public IDisposable Resume()
{
if (disposed)
{
throw new ObjectDisposedException("");
}
if (this.Parent != null)
{
this.Parent.childCount--;
}
previous = current;
current = this;
return(this);
}
internal RuntimeFunctionInvocation(RuntimeFunction method, EcmaValue thisValue, EcmaValue[] arguments, RuntimeObject newTarget = null)
{
this.FunctionObject = method;
this.Parent = current;
this.ThisValue = thisValue;
this.NewTarget = newTarget;
this.arguments = arguments;
this.previous = current;
if (method.IsHomedMethod || method.IsDerivedConstructor)
{
this.Super = new SuperAccessor(this, method.HomeObject);
}
current = this;
}
private EcmaValue GetCurrentCallee()
{
RuntimeFunctionInvocation invocation = RuntimeFunctionInvocation.Current;
bool returnCaller = false;
for (; invocation != null; invocation = invocation.Parent)
{
if (returnCaller)
{
return(invocation.FunctionObject);
}
if (invocation.FunctionObject == this)
{
returnCaller = true;
}
}
return(EcmaValue.Null);
}
public override EcmaValue Construct(EcmaValue[] arguments, RuntimeObject newTarget)
{
Guard.ArgumentNotNull(arguments, "arguments");
Guard.ArgumentNotNull(newTarget, "newTarget");
if (!this.IsConstructor || !newTarget.IsConstructor || (this.HomeObject != null && this.HomeObject != this))
{
throw new EcmaTypeErrorException(InternalString.Error.NotConstructor);
}
RuntimeObject thisValue = IsDerivedFromInternalClass() ? default : ConstructThisValue(newTarget);
using (RuntimeFunctionInvocation invocation = new RuntimeFunctionInvocation(this, thisValue, arguments, newTarget)) {
EcmaValue returnValue = Invoke(invocation, arguments);
if (returnValue.Type == EcmaValueType.Object)
{
return(returnValue);
}
if (invocation.Super != null && !invocation.Super.ConstructorInvoked)
{
throw new EcmaReferenceErrorException(InternalString.Error.SuperConstructorNotCalled);
}
return(invocation.ThisValue);
}
}
protected override EcmaValue Invoke(RuntimeFunctionInvocation invocation, EcmaValue[] arguments)
{
return(EcmaValue.Undefined);
}
protected virtual EcmaValue Invoke(RuntimeFunctionInvocation invocation, EcmaValue[] arguments)
{
throw new EcmaTypeErrorException(InternalString.Error.IllegalInvocation);
}
internal SuperAccessor(RuntimeFunctionInvocation invocation, RuntimeObject homeObject)
{
this.invocation = invocation;
this.homeObject = homeObject;
}
protected override EcmaValue Invoke(RuntimeFunctionInvocation invocation, EcmaValue[] arguments)
{
return(GetDelegate()(invocation, arguments, method.IsStatic ? null : invocation.ThisValue.GetUnderlyingObject()));
}
protected override EcmaValue Invoke(RuntimeFunctionInvocation invocation, EcmaValue[] arguments)
{
return(GetDelegate()(invocation, arguments, target));
}
protected override EcmaValue Invoke(RuntimeFunctionInvocation invocation, EcmaValue[] arguments)
{
return(new AsyncGenerator(invocation, new GeneratorDelegateEnumerator(generator)));
}