public virtual void Dup()
{
if (mv != null)
{
mv.Dup();
}
}
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);
}
protected void ImplementGetPrimitives(Member[] primitiveMembers, FieldInstance[] f_primitives, FieldInstance[] f_nullFlags)
{
MethodInstance template_m_getPrimitives = new MethodInstance(null, typeof(RootCacheValue), typeof(Object[]), "GetPrimitives");
IMethodVisitor mv = VisitMethod(template_m_getPrimitives);
mv.Push(f_primitives.Length);
mv.NewArray(objType);
for (int primitiveIndex = 0, size = f_primitives.Length; primitiveIndex < size; primitiveIndex++)
{
FieldInstance f_primitive = f_primitives[primitiveIndex];
FieldInstance f_nullFlag = f_nullFlags[primitiveIndex];
Label?l_fieldIsNull = null;
if (f_nullFlag != null)
{
l_fieldIsNull = mv.NewLabel();
// only do something if the field is non-null
mv.GetThisField(f_nullFlag);
mv.IfZCmp(CompareOperator.NE, l_fieldIsNull.Value);
}
// duplicate array instance on stack
mv.Dup();
mv.Push(primitiveIndex);
mv.GetThisField(f_primitive);
mv.ValueOf(f_primitive.Type.Type);
mv.ArrayStore(objType);
if (f_nullFlag != null)
{
mv.Mark(l_fieldIsNull.Value);
}
}
mv.ReturnValue();
mv.EndMethod();
}
protected void ImplementGetRelations(RelationMember[] relationMembers, FieldInstance[] f_relations)
{
MethodInstance template_m_getRelations = new MethodInstance(null, typeof(RootCacheValue), typeof(IObjRef[][]), "GetRelations");
IMethodVisitor mv = VisitMethod(template_m_getRelations);
mv.Push(f_relations.Length);
mv.NewArray(objRefArrayType);
for (int relationIndex = 0, size = f_relations.Length; relationIndex < size; relationIndex++)
{
FieldInstance f_primitive = f_relations[relationIndex];
// duplicate array instance on stack
mv.Dup();
mv.Push(relationIndex);
mv.GetThisField(f_primitive);
mv.ArrayStore(objRefArrayType);
}
mv.ReturnValue();
mv.EndMethod();
}
protected void ImplementGetValueIntern(MethodInstance template_m_getValue, IPropertyInfo[] propertyPath)
{
IMethodVisitor mv = VisitMethod(template_m_getValue);
Type declaringType = propertyPath[0].EntityType;
Label l_finish = mv.NewLabel();
mv.LoadArg(0);
Type typeOfArgumentOnStack = typeof(Object);
for (int a = 0, size = propertyPath.Length - 1; a < size; a++)
{
typeOfArgumentOnStack = InvokeGetProperty(mv, propertyPath[a], typeOfArgumentOnStack);
mv.Dup();
mv.IfNull(l_finish);
}
IPropertyInfo lastProperty = propertyPath[propertyPath.Length - 1];
typeOfArgumentOnStack = InvokeGetProperty(mv, lastProperty, typeOfArgumentOnStack);
if (lastProperty.PropertyType.IsPrimitive)
{
Type pType = lastProperty.PropertyType;
LocalVariableInfo loc_value = mv.NewLocal(pType);
mv.StoreLocal(loc_value);
mv.LoadLocal(loc_value);
Label l_valueIsNonZero = mv.NewLabel();
mv.IfZCmp(pType, CompareOperator.NE, l_valueIsNonZero);
if (mv.Method.Parameters.Length == 2)
{
Label l_nullAllowed = mv.NewLabel();
// check null-equi flag
mv.LoadArg(1);
mv.IfZCmp(CompareOperator.EQ, l_nullAllowed);
mv.PushNullOrZero(pType);
if (!mv.Method.ReturnType.Type.IsValueType)
{
mv.ValueOf(pType);
}
mv.ReturnValue();
mv.Mark(l_nullAllowed);
}
mv.PushNullOrZero(mv.Method.ReturnType);
mv.ReturnValue();
mv.Mark(l_valueIsNonZero);
mv.LoadLocal(loc_value);
mv.ValueOf(pType);
}
else if (lastProperty.PropertyType.IsValueType)
{
Type pType = lastProperty.PropertyType;
MethodInfo m_hasValue = pType.GetMethod("get_HasValue");
if (m_hasValue != null)
{
LocalVariableInfo loc_value = mv.NewLocal(pType);
mv.StoreLocal(loc_value);
mv.LoadLocal(loc_value);
MethodInfo m_getValue = pType.GetMethod("get_Value");
LocalVariableInfo loc_realValue = mv.NewLocal(m_getValue.ReturnType);
Label l_hasNoValue = mv.NewLabel();
mv.InvokeOnExactOwner(m_hasValue);
mv.IfZCmp(CompareOperator.EQ, l_hasNoValue);
mv.LoadLocal(loc_value);
mv.InvokeOnExactOwner(m_getValue);
mv.StoreLocal(loc_realValue);
mv.LoadLocal(loc_realValue);
mv.IfZCmp(CompareOperator.EQ, l_hasNoValue);
mv.LoadLocal(loc_realValue);
if (!mv.Method.ReturnType.Type.IsValueType)
{
mv.ValueOf(m_getValue.ReturnType);
}
mv.ReturnValue();
mv.Mark(l_hasNoValue);
if (mv.Method.Parameters.Length == 2)
{
Label l_nullEquivalentValueAllowed = mv.NewLabel();
// check null-equi flag
mv.LoadArg(1);
mv.IfZCmp(CompareOperator.NE, l_nullEquivalentValueAllowed);
mv.PushNull();
mv.ReturnValue();
mv.Mark(l_nullEquivalentValueAllowed);
}
mv.PushNullOrZero(m_getValue.ReturnType);
if (!mv.Method.ReturnType.Type.IsValueType)
{
mv.ValueOf(m_getValue.ReturnType);
}
}
else
{
mv.Box(pType);
}
}
mv.Mark(l_finish);
mv.ReturnValue();
mv.EndMethod();
}