[vala] Add support for generic array duplication

[Jürg Billeter <juergbi src gnome org>]

commit 976a7362b1e730c82990663301c777e658f33115
Author: Luca Bruno <lethalman88 gmail com>
Date:   Wed Mar 24 14:05:44 2010 +0100

    Add support for generic array duplication
    
    Fixes bug 613745.

 codegen/valaccodearraymodule.vala |    5 +++++
 codegen/valaccodebasemodule.vala  |   10 +++++++++-
 2 files changed, 14 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valaccodearraymodule.vala b/codegen/valaccodearraymodule.vala
index df8ee4d..093605d 100644
--- a/codegen/valaccodearraymodule.vala
+++ b/codegen/valaccodearraymodule.vala
@@ -775,6 +775,11 @@ internal class Vala.CCodeArrayModule : CCodeMethodCallModule {
 		function.add_parameter (new CCodeFormalParameter ("self", array_type.get_cname ()));
 		// total length over all dimensions
 		function.add_parameter (new CCodeFormalParameter ("length", "int"));
+		if (array_type.element_type is GenericType) {
+			// dup function array elements
+			string func_name = "%s_dup_func".printf (array_type.element_type.type_parameter.name.down ());
+			function.add_parameter (new CCodeFormalParameter (func_name, "GBoxedCopyFunc"));
+		}
 
 		// definition
 
diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index c937531..1e7175d 100644
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -2333,7 +2333,7 @@ internal class Vala.CCodeBaseModule : CCodeModule {
 	}
 
 	bool is_in_generic_type (DataType type) {
-		if (type.type_parameter.parent_symbol is TypeSymbol
+		if (current_symbol != null && type.type_parameter.parent_symbol is TypeSymbol
 		    && (current_method == null || current_method.binding == MemberBinding.INSTANCE)) {
 			return true;
 		} else {
@@ -3832,6 +3832,14 @@ internal class Vala.CCodeBaseModule : CCodeModule {
 				}
 
 				ccall.add_argument (csizeexpr);
+
+				if (array_type.element_type is GenericType) {
+					var elem_dupexpr = get_dup_func_expression (array_type.element_type, node.source_reference);
+					if (elem_dupexpr == null) {
+						elem_dupexpr = new CCodeConstant ("NULL");
+					}
+					ccall.add_argument (elem_dupexpr);
+				}
 			}
 
 			var ccomma = new CCodeCommaExpression ();