private void CreateDefaultInstance(
FieldBuilder field, TypeHelper fieldType, TypeHelper objectType, EmitHelper emit)
{
if (!CheckObjectHolderCtor(fieldType, objectType))
return;
if (objectType.Type == typeof(string))
{
emit
.ldarg_0
.LoadInitValue (objectType)
;
}
else if (objectType.IsArray)
{
FieldBuilder initializer = GetArrayInitializer(objectType);
emit
.ldarg_0
.ldsfld (initializer)
;
}
else
{
ConstructorInfo ci = objectType.GetPublicDefaultConstructor();
if (ci == null)
{
if (objectType.Type.IsValueType)
return;
string message = string.Format(
Resources.TypeBuilder_PropertyTypeHasNoPublicDefaultCtor,
Context.CurrentProperty.Name,
Context.Type.FullName,
objectType.FullName);
emit
.ldstr (message)
.newobj (typeof(TypeBuilderException), typeof(string))
.@throw
.end()
;
return;
}
else
{
emit
.ldarg_0
.newobj (ci)
;
}
}
if (IsObjectHolder)
{
emit
.newobj (fieldType, objectType)
;
}
emit
.stfld (field)
;
}
private void BuildHolderInstance(EmitHelper emit)
{
string fieldName = GetFieldName();
FieldBuilder field = Context.GetField(fieldName);
TypeHelper fieldType = new TypeHelper(field.FieldType);
TypeHelper objectType = new TypeHelper(GetObjectType());
ConstructorInfo ci = fieldType.GetPublicDefaultConstructor();
if (ci != null)
{
emit
.ldarg_0
.newobj (ci)
.stfld (field)
;
}
else
{
if (!CheckObjectHolderCtor(fieldType, objectType))
return;
emit
.ldarg_0
.ldnull
.newobj (fieldType, objectType)
.stfld (field)
;
}
}