2005-01-31 Zoltan Varga <vargaz@freemail.hu>
[mono.git] / mcs / class / Microsoft.JScript / Microsoft.JScript / VariableDeclaration.cs
index bbe47380d936985c00f248e710cc20155ec509f0..fc612ec8f0ece675427cfd1b084a35c3704a088d 100644 (file)
@@ -7,25 +7,44 @@
 // (C) 2003, Cesar Octavio Lopez Nataren, <cesar@ciencias.unam.mx>
 //
 
+//
+// Permission is hereby granted, free of charge, to any person obtaining
+// a copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to
+// permit persons to whom the Software is furnished to do so, subject to
+// the following conditions:
+// 
+// The above copyright notice and this permission notice shall be
+// included in all copies or substantial portions of the Software.
+// 
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//
+
 using System;
 using System.Text;
 using System.Reflection;
 using System.Reflection.Emit;
 
 namespace Microsoft.JScript {
-
-       public abstract class Decl : AST {
-               internal FieldInfo field_info;
-               internal LocalBuilder local_builder;
-       }
-
-       public class VariableDeclaration : Decl {
+       
+       public class VariableDeclaration : AST {
 
                internal string id;
                internal Type type;
-               internal string type_annot;
+               internal string type_annot = String.Empty;
                internal AST val;
 
+               internal FieldInfo field_info;
+               internal LocalBuilder local_builder;
+
                internal VariableDeclaration (AST parent, string id, string t, AST init)
                {
                        this.parent = parent;
@@ -40,14 +59,16 @@ namespace Microsoft.JScript {
                        }
                        this.val = init;
                }
-
+               
                public override string ToString ()
                {
                        StringBuilder sb = new StringBuilder ();
 
                        sb.Append (id);
-                       sb.Append (":" + type_annot);
-                       sb.Append (" = ");
+                       if (type_annot != String.Empty) {                               
+                               sb.Append (":" + type_annot);
+                               sb.Append (" = ");
+                       }
 
                        if (val != null)
                                sb.Append (val.ToString ());
@@ -57,24 +78,23 @@ namespace Microsoft.JScript {
 
                internal override void Emit (EmitContext ec)
                {
-                       if (parent == null) {
-                               FieldBuilder field;
+                       ILGenerator ig = ec.ig;
+
+                       if (parent == null || (parent.GetType () != typeof (FunctionDeclaration)
+                                              && parent.GetType () != typeof (FunctionExpression))) {
+                               FieldBuilder field_builder;
                                TypeBuilder type  = ec.type_builder;
                                
-                               field = type.DefineField (id, this.type,
-                                                         FieldAttributes.Public |
-                                                         FieldAttributes.Static);
-                               
-                               field_info = CodeGenerator.assembly_builder.GetType ("JScript 0").GetField (id);
+                               field_builder = type.DefineField (id, this.type, FieldAttributes.Public | FieldAttributes.Static);
+                               field_info = field_builder;
 
                                if (val != null) {
                                        val.Emit (ec);
-                                       ec.gc_ig.Emit (OpCodes.Stsfld, field);
+                                       ig.Emit (OpCodes.Stsfld, field_builder);
                                }
                        } else {
-                               ILGenerator ig = ec.ig;
                                local_builder = ig.DeclareLocal (type);
-
+                               
                                if (val != null) {
                                        val.Emit (ec);
                                        ig.Emit (OpCodes.Stloc, local_builder);
@@ -86,10 +106,7 @@ namespace Microsoft.JScript {
                {
                        bool r = true;
                        if (val != null)
-                               if (val is Exp) 
-                                       r = ((Exp) val).Resolve (context, false);
-                               else
-                                       r = val.Resolve (context);
+                               r = val.Resolve (context);
                        context.Enter (id, this);
                        return r;
                }