public virtual void IfNonNull(Label label)
{
if (mv != null)
{
mv.IfNonNull(label);
}
}
protected MethodInstance ImplementUsePropertyChangeSupport(PropertyInstance p_propertyChangeTemplate, FieldInstance f_propertyChangeSupport)
{
MethodInstance m_getPropertyChangeSupport = MethodInstance.FindByTemplate(template_m_usePropertyChangeSupport, true);
if (m_getPropertyChangeSupport == null)
{
// create field that holds propertyChangeSupport
f_propertyChangeSupport = ImplementField(f_propertyChangeSupport);
IMethodVisitor mg = VisitMethod(template_m_usePropertyChangeSupport);
HideFromDebug(mg.Method);
Label l_pcsValid = mg.NewLabel();
mg.GetThisField(f_propertyChangeSupport);
mg.Dup();
mg.IfNonNull(l_pcsValid);
mg.Pop(); // remove 2nd null instance from stack caused by previous dup
mg.PutThisField(f_propertyChangeSupport, delegate(IMethodVisitor mg2)
{
mg.CallThisGetter(p_propertyChangeTemplate);
mg.LoadThis();
mg.InvokeVirtual(m_newPropertyChangeSupport);
});
mg.GetThisField(f_propertyChangeSupport);
mg.Mark(l_pcsValid);
mg.ReturnValue(); // return instance already on the stack by both branches
mg.EndMethod();
m_getPropertyChangeSupport = mg.Method;
}
return(m_getPropertyChangeSupport);
}
public virtual PropertyInstance ImplementLazyInitProperty(PropertyInstance property, Script script, params String[] fireThisOnPropertyNames)
{
FieldInstance field = ImplementField(new FieldInstance(FieldAttributes.Private, "f_" + property.Name, property.PropertyType));
IMethodVisitor mv = VisitMethod(property.Getter);
Label returnInstance = mv.NewLabel();
mv.GetThisField(field);
mv.IfNonNull(returnInstance);
mv.PutThisField(field, script);
mv.Mark(returnInstance);
mv.GetThisField(field);
mv.ReturnValue();
mv.EndMethod();
return(FireThisOnPropertyChange(property, fireThisOnPropertyNames));
}
protected void ImplementSetValue(IPropertyInfo[] propertyPath)
{
IMethodVisitor mv = VisitMethod(template_m_setValue);
IPropertyInfo lastProperty = propertyPath[propertyPath.Length - 1];
if (lastProperty is MethodPropertyInfo && ((MethodPropertyInfo)lastProperty).Setter == null)
{
throw new Exception("Property not writable: " + lastProperty.EntityType.FullName + "." + lastProperty.Name);
}
mv.LoadArg(0);
Type typeOfArgumentOnStack = typeof(Object);
for (int a = 0, size = propertyPath.Length - 1; a < size; a++)
{
typeOfArgumentOnStack = InvokeGetProperty(mv, propertyPath[a], typeOfArgumentOnStack);
}
if (!lastProperty.DeclaringType.Equals(typeOfArgumentOnStack))
{
mv.CheckCast(lastProperty.DeclaringType);
}
mv.LoadArg(1);
Type lastPropertyType = lastProperty.PropertyType;
if (lastProperty.PropertyType.IsPrimitive)
{
Type pType = lastProperty.PropertyType;
Label l_valueIsNonNull = mv.NewLabel();
Label l_valueIsValid = mv.NewLabel();
mv.IfNonNull(l_valueIsNonNull);
mv.PushNullOrZero(pType);
mv.GoTo(l_valueIsValid);
mv.Mark(l_valueIsNonNull);
mv.LoadArg(1);
mv.Unbox(pType);
mv.Mark(l_valueIsValid);
}
else
{
mv.CheckCast(lastPropertyType);
}
InvokeSetProperty(mv, lastProperty);
mv.ReturnValue();
mv.EndMethod();
}
