[vala/wip/transform: 39/107] Use wrapper method for serializing hash table and structs

[Rico Tzschichholz <ricotz src gnome org>]

commit 754b9cab126d5139806fa784721351f6f3b00a0d
Author: Luca Bruno <lucabru src gnome org>
Date:   Tue Jan 3 11:46:23 2012 +0100

    Use wrapper method for serializing hash table and structs

 codegen/valagvarianttransformer.vala | 68 +++++++++++++++++++++++-------------
 1 file changed, 44 insertions(+), 24 deletions(-)
---
diff --git a/codegen/valagvarianttransformer.vala b/codegen/valagvarianttransformer.vala
index 5924748d2..a48189d6b 100644
--- a/codegen/valagvarianttransformer.vala
+++ b/codegen/valagvarianttransformer.vala
@@ -239,43 +239,63 @@ public class Vala.GVariantTransformer : CodeTransformer {
        }
 
        Expression? serialize_struct (Struct st, Expression expr) {
-               string temp = b.add_temp_declaration (expr.value_type, expr);
-
-               var builderinit = expression ("new GLib.VariantBuilder (GLib.VariantType.TUPLE)");
-               var builder = b.add_temp_declaration (null, builderinit);
-
-               bool field_found = false;
-
+               bool has_instance_field = false;
                foreach (Field f in st.get_fields ()) {
-                       if (f.binding != MemberBinding.INSTANCE) {
-                               continue;
+                       if (f.binding == MemberBinding.INSTANCE) {
+                               has_instance_field = true;
+                               break;
                        }
+               }
+               if (!has_instance_field) {
+                       return null;
+               }
 
-                       field_found = true;
+               Method m;
+               var type = context.analyzer.get_data_type_for_symbol (st);
+               if (!wrapper_method (data_type ("GLib.Variant", true), "gvariant_serialize_struct 
"+type.to_string(), out m)) {
+                       m.add_parameter (new Parameter ("st", type, b.source_reference));
+                       b.push_method (m);
 
-                       var serialized_field = serialize_expression (copy_type (f.variable_type, false), 
expression (@"$temp.$(f.name)"));
-                       MethodCall call = (MethodCall) expression (@"$builder.add_value ()");
-                       call.add_argument (serialized_field);
-                       b.add_expression (call);
-               }
+                       var builderinit = expression ("new GLib.VariantBuilder (GLib.VariantType.TUPLE)");
+                       var builder = b.add_temp_declaration (null, builderinit);
 
-               if (!field_found) {
-                       return null;
+                       foreach (Field f in st.get_fields ()) {
+                               if (f.binding != MemberBinding.INSTANCE) {
+                                       continue;
+                               }
+
+                               var serialized_field = serialize_expression (copy_type (f.variable_type, 
false), expression (@"st.$(f.name)"));
+                               MethodCall call = (MethodCall) expression (@"$builder.add_value ()");
+                               call.add_argument (serialized_field);
+                               b.add_expression (call);
+                       }
+                       b.add_return (expression (@"$builder.end ()"));
                }
 
-               return expression (@"$builder.end ()");
+               var call = (MethodCall) expression (m.name+"()");
+               call.add_argument (expr);
+               return call;
        }
 
        Expression? serialize_hash_table (ObjectType type, Expression expr) {
-               string temp = b.add_temp_declaration (expr.value_type, expr);
+               Method m;
+               if (!wrapper_method (data_type ("GLib.Variant", true), "gvariant_serialize_hash_table 
"+type.to_string(), out m)) {
+                       m.add_parameter (new Parameter ("ht", copy_type (type, false), b.source_reference));
+                       b.push_method (m);
 
-               var builderinit = expression (@"new GLib.VariantBuilder (new GLib.VariantType 
(\"$(get_type_signature (type))\"))");
-               var builder = b.add_temp_declaration (null, builderinit);
+                       var builderinit = expression (@"new GLib.VariantBuilder (new GLib.VariantType 
(\"$(get_type_signature (type))\"))");
+                       var builder = b.add_temp_declaration (null, builderinit);
 
-               var for_each = expression (@"$temp.for_each ((k,v) => $builder.add (\"{?*}\", k, v))");
-               b.add_expression (for_each);
+                       var for_each = expression (@"ht.for_each ((k,v) => $builder.add (\"{?*}\", k, v))");
+                       b.add_expression (for_each);
+                       b.add_return (expression (@"$builder.end ()"));
 
-               return expression (@"$builder.end ()");
+                       b.pop_method ();
+                       check (m);
+               }
+               var call = (MethodCall) expression (m.name+"()");
+               call.add_argument (expr);
+               return call;
        }
 
        Expression? serialize_expression (DataType type, Expression expr) {