/// <summary>
/// Returns all ObjC forward class and protocol declarations required to fully represent the facet.
/// </summary>
/// <param name="facet"></param>
/// <returns></returns>
public List <string> ObjCForwardDeclarations(CodeFacet facet)
{
List <string> imports = new List <string>();
if (!Config.GenerateFacetBinding(facet))
{
return(imports);
}
// objC type
// note that a constructor has no return type
string objCType = facet.ObjCFacet.Type;
if (!string.IsNullOrEmpty(objCType))
{
// if the type is a generic parameter
if (facet.IsGenericParameterOrRef())
{
objCType = "System_Object";
}
string import = String.Format("@class {0};", objCType);
imports.Add(import);
if (facet.IsArray == true)
{
import = String.Format("@class {0};", facet.ObjCFacet.BaseType);
imports.Add(import);
}
if (facet.GetType() == typeof(InterfaceFacet) || facet.IsInterface)
{
import = String.Format("@protocol {0}_;", objCType);
imports.Add(import);
import = String.Format("@protocol {0};", objCType);
imports.Add(import);
}
}
// forward declare objC facet types for all children
List <CodeFacet> children = facet.Children();
foreach (CodeFacet child in children)
{
imports.AddRange(ObjCForwardDeclarations(child));
}
// return a distinct list to remove duplicates
imports = imports.Distinct().ToList();
imports.Sort();
return(imports);
}
//
// ObjCTypeDeclFromManagedFacet()
//
public string ObjCTypeDeclFromManagedFacet(CodeFacet managedFacet, bool allowObjCTypeAssociation = true)
{
string decl = "";
// if the facet represents a generic parameter (or ref) then we
// won't know the actual type until runtime, so we default to the System_Object;
if (managedFacet.IsGenericParameterOrRef())
{
decl = "System_Object *";
return(decl);
}
string managedType = ManagedTypeForAssociation(managedFacet);
if (managedType == null)
{
return("????");
}
if (allowObjCTypeAssociation && ObjCTypeAssociations.ContainsKey(managedType))
{
decl = ObjCTypeAssociations[managedType].ObjCTypeDecl;
if (managedFacet.IsPointer)
{
decl += " *";
}
}
else
{
// canonical type name.
decl = ObjCIdentifierFromManagedIdentifier(managedType);
if (managedFacet.IsEnum)
{
decl = "enum" + decl;
}
else
{
decl += " *";
}
}
return(decl);
}