[vala/wip/transform: 41/52] Drop GVariant stuff from CCodeBaseModule

[Rico Tzschichholz <ricotz src gnome org>]

commit b2ba77d0776f4bdf339c29d805be7854385015b7
Author: Luca Bruno <lucabru src gnome org>
Date:   Thu Jan 5 13:14:58 2012 +0100

    Drop GVariant stuff from CCodeBaseModule

 codegen/valaccodebasemodule.vala |  125 +-------------------------------------
 1 files changed, 1 insertions(+), 124 deletions(-)
---
diff --git a/codegen/valaccodebasemodule.vala b/codegen/valaccodebasemodule.vala
index 62d1d8a..9abbf66 100644
--- a/codegen/valaccodebasemodule.vala
+++ b/codegen/valaccodebasemodule.vala
@@ -312,7 +312,6 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 	public DataType gdestroynotify_type;
 	public DataType gquark_type;
 	public Struct gvalue_type;
-	public Class gvariant_type;
 	public Struct mutex_type;
 	public Struct gmutex_type;
 	public Struct grecmutex_type;
@@ -460,7 +459,6 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 
 		gquark_type = new IntegerType ((Struct) glib_ns.scope.lookup ("Quark"));
 		gvalue_type = (Struct) glib_ns.scope.lookup ("Value");
-		gvariant_type = (Class) glib_ns.scope.lookup ("Variant");
 		gsource_type = (Class) glib_ns.scope.lookup ("Source");
 
 		if (context.require_glib_version (2, 32)) {
@@ -4910,82 +4908,6 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 		return rv;
 	}
 
-	int next_variant_function_id = 0;
-
-	public TargetValue? try_cast_variant_to_type (TargetValue value, DataType to, CodeNode? node = null) {
-		if (value.value_type == null || gvariant_type == null || value.value_type.data_type != gvariant_type) {
-			return null;
-		}
-
-		string variant_func = "_variant_get%d".printf (++next_variant_function_id);
-
-		var variant = value;
-		if (value.value_type.value_owned) {
-			// value leaked, destroy it
-			var temp_value = store_temp_value (value, node);
-			temp_ref_values.insert (0, ((GLibValue) temp_value).copy ());
-			variant = temp_value;
-		}
-
-		var ccall = new CCodeFunctionCall (new CCodeIdentifier (variant_func));
-		ccall.add_argument (get_cvalue_ (variant));
-
-		var result = create_temp_value (to, false, node);
-
-		var cfunc = new CCodeFunction (variant_func);
-		cfunc.modifiers = CCodeModifiers.STATIC;
-		cfunc.add_parameter (new CCodeParameter ("value", "GVariant*"));
-
-		if (!to.is_real_non_null_struct_type ()) {
-			cfunc.return_type = get_ccode_name (to);
-		}
-
-		if (to.is_real_non_null_struct_type ()) {
-			// structs are returned via out parameter
-			cfunc.add_parameter (new CCodeParameter ("result", get_ccode_name (to) + "*"));
-			ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, get_cvalue_ (result)));
-		} else if (to is ArrayType) {
-			// return array length if appropriate
-			// tmp = _variant_get (variant, &tmp_length);
-			var array_type = (ArrayType) to;
-
-			for (int dim = 1; dim <= array_type.rank; dim++) {
-				ccall.add_argument (new CCodeUnaryExpression (CCodeUnaryOperator.ADDRESS_OF, get_array_length_cvalue (result, dim)));
-				cfunc.add_parameter (new CCodeParameter (get_array_length_cname ("result", dim), "int*"));
-			}
-		}
-
-		if (!to.is_real_non_null_struct_type ()) {
-			ccode.add_assignment (get_cvalue_ (result), ccall);
-		} else {
-			ccode.add_expression (ccall);
-		}
-
-		push_function (cfunc);
-
-		CCodeExpression func_result = deserialize_expression (to, new CCodeIdentifier ("value"), new CCodeIdentifier ("*result"));
-		if (to.is_real_non_null_struct_type ()) {
-			ccode.add_assignment (new CCodeIdentifier ("*result"), func_result);
-		} else {
-			ccode.add_return (func_result);
-		}
-
-		pop_function ();
-
-		cfile.add_function_declaration (cfunc);
-		cfile.add_function (cfunc);
-
-		return load_temp_value (result);
-	}
-
-	public virtual CCodeExpression? deserialize_expression (DataType type, CCodeExpression variant_expr, CCodeExpression? expr, CCodeExpression? error_expr = null, out bool may_fail = null) {
-		assert_not_reached ();
-	}
-
-	public virtual CCodeExpression? serialize_expression (DataType type, CCodeExpression expr) {
-		assert_not_reached ();
-	}
-
 	public override void visit_cast_expression (CastExpression expr) {
 		var valuecast = try_cast_value_to_type (get_cvalue (expr.inner), expr.inner.value_type, expr.type_reference, expr);
 		if (valuecast != null) {
@@ -4993,12 +4915,6 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 			return;
 		}
 
-		var variantcast = try_cast_variant_to_type (expr.inner.target_value, expr.type_reference, expr);
-		if (variantcast != null) {
-			expr.target_value = variantcast;
-			return;
-		}
-
 		generate_type_declaration (expr.type_reference, cfile);
 
 		var cl = expr.type_reference.data_type as Class;
@@ -5482,10 +5398,6 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 		                      && target_type.data_type == gvalue_type
 		                      && !(type is NullType)
 		                      && get_ccode_type_id (type) != "G_TYPE_VALUE");
-		bool gvariant_boxing = (target_type != null
-		                        && target_type.data_type == gvariant_type
-		                        && !(type is NullType)
-		                        && type.data_type != gvariant_type);
 
 		if (type.value_owned
 		    && (target_type == null || !target_type.value_owned || boxing || unboxing || gvariant_boxing)
@@ -5564,41 +5476,6 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 
 			result = (GLibValue) temp_value;
 			requires_temp_value = false;
-		} else if (gvariant_boxing) {
-			// implicit conversion to GVariant
-			string variant_func = "_variant_new%d".printf (++next_variant_function_id);
-
-			var ccall = new CCodeFunctionCall (new CCodeIdentifier (variant_func));
-			ccall.add_argument (result.cvalue);
-
-			var cfunc = new CCodeFunction (variant_func, "GVariant*");
-			cfunc.modifiers = CCodeModifiers.STATIC;
-			cfunc.add_parameter (new CCodeParameter ("value", get_ccode_name (type)));
-
-			if (type is ArrayType) {
-				// return array length if appropriate
-				var array_type = (ArrayType) type;
-
-				for (int dim = 1; dim <= array_type.rank; dim++) {
-					ccall.add_argument (get_array_length_cvalue (value, dim));
-					cfunc.add_parameter (new CCodeParameter (get_array_length_cname ("value", dim), "gint"));
-				}
-			}
-
-			push_function (cfunc);
-
-			// sink floating reference
-			var sink = new CCodeFunctionCall (new CCodeIdentifier ("g_variant_ref_sink"));
-			sink.add_argument (serialize_expression (type, new CCodeIdentifier ("value")));
-			ccode.add_return (sink);
-
-			pop_function ();
-
-			cfile.add_function_declaration (cfunc);
-			cfile.add_function (cfunc);
-
-			result.cvalue = ccall;
-			requires_temp_value = true;
 		} else if (boxing) {
 			// value needs to be boxed
 
@@ -5623,7 +5500,7 @@ public abstract class Vala.CCodeBaseModule : CodeGenerator {
 			result = (GLibValue) store_temp_value (result, node);
 		}
 
-		if (!gvalue_boxing && !gvariant_boxing && target_type.value_owned && (!type.value_owned || boxing || unboxing) && requires_copy (target_type) && !(type is NullType)) {
+		if (!gvalue_boxing && target_type.value_owned && (!type.value_owned || boxing || unboxing) && requires_copy (target_type) && !(type is NullType)) {
 			// need to copy value
 			var copy = (GLibValue) copy_value (result, node);
 			if (target_type.data_type is Interface && copy == null) {