2007-03-20 Martin Baulig <martin@ximian.com>
[mono.git] / mcs / mcs / rootcontext.cs
index bfb9177106da6eddefd8217e5e2183c4001b467c..9eb5fdae489425a26ca8e12048d9b8cccb147720 100644 (file)
@@ -20,7 +20,8 @@ namespace Mono.CSharp {
        public enum LanguageVersion
        {
                Default = 0,
-               ISO_1   = 1
+               ISO_1   = 1,
+               LINQ
        }
 
        public class RootContext {
@@ -28,7 +29,7 @@ namespace Mono.CSharp {
                //
                // Contains the parsed tree
                //
-               static Tree tree;
+               static RootTypes root;
 
                //
                // This hashtable contains all of the #definitions across the source code
@@ -63,9 +64,9 @@ namespace Mono.CSharp {
                static TypeBuilder impl_details_class;
 
                public static int WarningLevel;
-               
+
                public static Target Target;
-               public static string TargetExt = ".exe";
+               public static string TargetExt;
 
                public static bool VerifyClsCompliance = true;
 
@@ -101,7 +102,7 @@ namespace Mono.CSharp {
 
                public static void Reset ()
                {
-                       tree = new Tree ();
+                       root = new RootTypes ();
                        type_container_resolve_order = new ArrayList ();
                        EntryPoint = null;
                        WarningLevel = 3;
@@ -113,21 +114,19 @@ namespace Mono.CSharp {
                        StrongNameDelaySign = false;
                        MainClass = null;
                        Target = Target.Exe;
+                       TargetExt = ".exe";
                        Version = LanguageVersion.Default;
                        Documentation = null;
                        impl_details_class = null;
+                       helper_classes = null;
                }
-               
+
                public static bool NeedsEntryPoint {
-                       get {
-                               return RootContext.Target == Target.Exe || RootContext.Target == Target.WinExe;
-                       }
+                       get { return RootContext.Target == Target.Exe || RootContext.Target == Target.WinExe; }
                }
 
-               static public Tree Tree {
-                       get {
-                               return tree;
-                       }
+               static public RootTypes ToplevelTypes {
+                       get { return root; }
                }
 
                public static void RegisterOrder (TypeContainer tc)
@@ -160,13 +159,8 @@ namespace Mono.CSharp {
                        // a set of interfaces, we need to be able to tell
                        // them appart by just using the TypeManager.
                        //
-                       TypeContainer root = Tree.Types;
-
-                       ArrayList ifaces = root.Interfaces;
-                       if (ifaces != null){
-                               foreach (TypeContainer i in ifaces) 
-                                       i.DefineType ();
-                       }
+                       foreach (TypeContainer tc in root.Types)
+                               tc.CreateType ();
 
                        foreach (TypeContainer tc in root.Types)
                                tc.DefineType ();
@@ -174,10 +168,6 @@ namespace Mono.CSharp {
                        if (root.Delegates != null)
                                foreach (Delegate d in root.Delegates) 
                                        d.DefineType ();
-
-                       if (root.Enums != null)
-                               foreach (Enum e in root.Enums)
-                                       e.DefineType ();
                }
 
                static void Error_TypeConflict (string name, Location loc)
@@ -195,11 +185,11 @@ namespace Mono.CSharp {
                //
                // Resolves a single class during the corlib bootstrap process
                //
-               static TypeBuilder BootstrapCorlib_ResolveClass (TypeContainer root, string name)
+               static Type BootstrapCorlib_ResolveClass (TypeContainer root, string name)
                {
                        object o = root.GetDefinition (name);
                        if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined");
+                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
                                return null;
                        }
 
@@ -214,7 +204,10 @@ namespace Mono.CSharp {
                                return null;
                        }
 
-                       return ((DeclSpace) o).DefineType ();
+                       Type t = ((DeclSpace) o).DefineType ();
+                       if (t != null)
+                               AttributeTester.RegisterNonObsoleteType (t);
+                       return t;
                }
 
                //
@@ -224,7 +217,7 @@ namespace Mono.CSharp {
                {
                        object o = root.GetDefinition (name);
                        if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined");
+                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
                                return;
                        }
 
@@ -249,7 +242,7 @@ namespace Mono.CSharp {
                {
                        object o = root.GetDefinition (name);
                        if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined");
+                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
                                return;
                        }
 
@@ -264,7 +257,9 @@ namespace Mono.CSharp {
                                return;
                        }
 
-                       ((DeclSpace) o).DefineType ();
+                       Type t = ((DeclSpace) o).DefineType ();
+                       if (t != null)
+                               AttributeTester.RegisterNonObsoleteType (t);
                }
 
                //
@@ -274,7 +269,7 @@ namespace Mono.CSharp {
                {
                        object o = root.GetDefinition (name);
                        if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined");
+                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
                                return;
                        }
 
@@ -292,11 +287,17 @@ namespace Mono.CSharp {
                /// </summary>
                static public void ResolveCore ()
                {
-                       TypeContainer root = Tree.Types;
-
                        TypeManager.object_type = BootstrapCorlib_ResolveClass (root, "System.Object");
+                       TypeManager.system_object_expr.Type = TypeManager.object_type;
                        TypeManager.value_type = BootstrapCorlib_ResolveClass (root, "System.ValueType");
+                       TypeManager.system_valuetype_expr.Type = TypeManager.value_type;
+
+                       //
+                       // The core attributes
+                       //
+                       BootstrapCorlib_ResolveInterface (root, "System.Runtime.InteropServices._Attribute");
                        TypeManager.attribute_type = BootstrapCorlib_ResolveClass (root, "System.Attribute");
+                       TypeManager.obsolete_attribute_type = BootstrapCorlib_ResolveClass (root, "System.ObsoleteAttribute");
                        TypeManager.indexer_name_type = BootstrapCorlib_ResolveClass (root, "System.Runtime.CompilerServices.IndexerNameAttribute");
                        
                        string [] interfaces_first_stage = {
@@ -313,7 +314,16 @@ namespace Mono.CSharp {
                                "System.Runtime.Serialization.ISerializable",
 
                                "System.Reflection.IReflect",
-                               "System.Reflection.ICustomAttributeProvider"
+                               "System.Reflection.ICustomAttributeProvider",
+#if GMCS_SOURCE
+                               "System.Runtime.InteropServices._Exception",
+
+                               //
+                               // Generic types
+                               //
+                               "System.Collections.Generic.IEnumerator`1",
+                               "System.Collections.Generic.IEnumerable`1"
+#endif
                        };
 
                        foreach (string iname in interfaces_first_stage)
@@ -363,6 +373,9 @@ namespace Mono.CSharp {
                                "System.Reflection.MemberInfo",
                                "System.Type",
                                "System.Exception",
+#if GMCS_SOURCE
+                               "System.Activator",
+#endif
 
                                //
                                // These are not really important in the order, but they
@@ -371,13 +384,17 @@ namespace Mono.CSharp {
                                "System.Runtime.CompilerServices.RuntimeHelpers",
                                "System.Reflection.DefaultMemberAttribute",
                                "System.Threading.Monitor",
+                               "System.Threading.Interlocked",
                                
                                "System.AttributeUsageAttribute",
                                "System.Runtime.InteropServices.DllImportAttribute",
                                "System.Runtime.CompilerServices.MethodImplAttribute",
                                "System.Runtime.InteropServices.MarshalAsAttribute",
+#if GMCS_SOURCE
+                               "System.Runtime.CompilerServices.CompilerGeneratedAttribute",
+                               "System.Runtime.CompilerServices.FixedBufferAttribute",
+#endif
                                "System.Diagnostics.ConditionalAttribute",
-                               "System.ObsoleteAttribute",
                                "System.ParamArrayAttribute",
                                "System.CLSCompliantAttribute",
                                "System.Security.UnverifiableCodeAttribute",
@@ -387,16 +404,23 @@ namespace Mono.CSharp {
                                "System.Runtime.InteropServices.OutAttribute",
                                "System.Runtime.InteropServices.StructLayoutAttribute",
                                "System.Runtime.InteropServices.FieldOffsetAttribute",
+#if GMCS_SOURCE
+                               "System.Runtime.InteropServices.DefaultCharSetAttribute",
+#endif
                                "System.InvalidOperationException",
                                "System.NotSupportedException",
                                "System.MarshalByRefObject",
                                "System.Security.CodeAccessPermission",
-                               "System.Runtime.CompilerServices.RequiredAttributeAttribute"
+                               "System.Runtime.CompilerServices.RequiredAttributeAttribute",
+                               "System.Runtime.InteropServices.GuidAttribute",
+                               "System.Reflection.AssemblyCultureAttribute"
                        };
 
                        foreach (string cname in classes_second_stage)
                                BootstrapCorlib_ResolveClass (root, cname);
-
+#if GMCS_SOURCE
+                       BootstrapCorlib_ResolveStruct (root, "System.Nullable`1");
+#endif
                        BootstrapCorlib_ResolveDelegate (root, "System.AsyncCallback");
 
                        // These will be defined indirectly during the previous ResolveDelegate.
@@ -418,12 +442,6 @@ namespace Mono.CSharp {
                // </remarks>
                static public void CloseTypes ()
                {
-                       TypeContainer root = Tree.Types;
-                       
-                       if (root.Enums != null)
-                               foreach (Enum en in root.Enums)
-                                       en.CloseType ();
-
                        //
                        // We do this in two passes, first we close the structs,
                        // then the classes, because it seems the code needs it this
@@ -431,13 +449,13 @@ namespace Mono.CSharp {
                        // make sure that we define the structs in order as well.
                        //
                        foreach (TypeContainer tc in type_container_resolve_order){
-                               if (tc.Kind == Kind.Struct && tc.Parent == tree.Types){
+                               if (tc.Kind == Kind.Struct && tc.Parent == root){
                                        tc.CloseType ();
                                }
                        }
 
                        foreach (TypeContainer tc in type_container_resolve_order){
-                               if (!(tc.Kind == Kind.Struct && tc.Parent == tree.Types))
+                               if (!(tc.Kind == Kind.Struct && tc.Parent == root))
                                        tc.CloseType ();                                        
                        }
                        
@@ -451,7 +469,7 @@ namespace Mono.CSharp {
                        //
                        if (helper_classes != null){
                                foreach (TypeBuilder type_builder in helper_classes) {
-#if NET_2_0
+#if GMCS_SOURCE
                                        type_builder.SetCustomAttribute (TypeManager.compiler_generated_attr);
 #endif
                                        type_builder.CreateType ();
@@ -460,7 +478,7 @@ namespace Mono.CSharp {
                        
                        type_container_resolve_order = null;
                        helper_classes = null;
-                       //tree = null;
+                       //root = null;
                        TypeManager.CleanUp ();
                }
 
@@ -476,23 +494,16 @@ namespace Mono.CSharp {
                        helper_classes.Add (helper_class);
                }
                
-               static void Report1530 (Location loc)
-               {
-                       Report.Error (1530, loc, "Keyword new not allowed for namespace elements");
-               }
-               
                static public void PopulateCoreType (TypeContainer root, string name)
                {
                        DeclSpace ds = (DeclSpace) root.GetDefinition (name);
 
-                       ds.DefineMembers (root);
+                       ds.DefineMembers ();
                        ds.Define ();
                }
                
                static public void BootCorlib_PopulateCoreTypes ()
                {
-                       TypeContainer root = tree.Types;
-
                        PopulateCoreType (root, "System.Object");
                        PopulateCoreType (root, "System.ValueType");
                        PopulateCoreType (root, "System.Attribute");
@@ -507,43 +518,18 @@ namespace Mono.CSharp {
                // have been defined through `ResolveTree' 
                static public void PopulateTypes ()
                {
-                       TypeContainer root = Tree.Types;
 
                        if (type_container_resolve_order != null){
-                               if (RootContext.StdLib){
-                                       foreach (TypeContainer tc in type_container_resolve_order)
-                                               tc.DefineMembers (root);
-                               } else {
-                                       foreach (TypeContainer tc in type_container_resolve_order) {
-                                               // When compiling corlib, these types have already been
-                                               // populated from BootCorlib_PopulateCoreTypes ().
-                                               if (((tc.Name == "System.Object") ||
-                                                       (tc.Name == "System.Attribute") ||
-                                                       (tc.Name == "System.ValueType") ||
-                                                       (tc.Name == "System.Runtime.CompilerServices.IndexerNameAttribute")))
-                                               continue;
-
-                                               tc.DefineMembers (root);
-                                       }
-                               } 
+                               foreach (TypeContainer tc in type_container_resolve_order)
+                                       tc.ResolveType ();
+                               foreach (TypeContainer tc in type_container_resolve_order)
+                                       tc.DefineMembers ();
                        }
 
                        ArrayList delegates = root.Delegates;
                        if (delegates != null){
                                foreach (Delegate d in delegates)
-                                       if ((d.ModFlags & Modifiers.NEW) == 0)
-                                               d.DefineMembers (root);
-                                       else
-                                               Report1530 (d.Location);
-                       }
-
-                       ArrayList enums = root.Enums;
-                       if (enums != null){
-                               foreach (Enum en in enums)
-                                       if ((en.ModFlags & Modifiers.NEW) == 0)
-                                               en.DefineMembers (root);
-                                       else
-                                               Report1530 (en.Location);
+                                       d.DefineMembers ();
                        }
 
                        //
@@ -571,7 +557,11 @@ namespace Mono.CSharp {
                //
                static public void DefineTypes ()
                {
-                       TypeContainer root = Tree.Types;
+                       ArrayList delegates = root.Delegates;
+                       if (delegates != null){
+                               foreach (Delegate d in delegates)
+                                       d.Define ();
+                       }
 
                        if (type_container_resolve_order != null){
                                foreach (TypeContainer tc in type_container_resolve_order) {
@@ -584,33 +574,13 @@ namespace Mono.CSharp {
                                             (tc.Name == "System.Runtime.CompilerServices.IndexerNameAttribute")))
                                                continue;
 
-                                       if ((tc.ModFlags & Modifiers.NEW) == 0)
-                                               tc.Define ();
+                                       tc.Define ();
                                }
                        }
-
-                       ArrayList delegates = root.Delegates;
-                       if (delegates != null){
-                               foreach (Delegate d in delegates)
-                                       if ((d.ModFlags & Modifiers.NEW) == 0)
-                                               d.Define ();
-                       }
-
-                       ArrayList enums = root.Enums;
-                       if (enums != null){
-                               foreach (Enum en in enums)
-                                       if ((en.ModFlags & Modifiers.NEW) == 0)
-                                               en.Define ();
-                       }
                }
 
                static public void EmitCode ()
                {
-                       if (Tree.Types.Enums != null) {
-                               foreach (Enum e in Tree.Types.Enums)
-                                       e.Emit ();
-                       }
-
                        if (type_container_resolve_order != null) {
                                foreach (TypeContainer tc in type_container_resolve_order)
                                        tc.EmitType ();
@@ -622,8 +592,8 @@ namespace Mono.CSharp {
                                        tc.VerifyMembers ();
                        }
                        
-                       if (Tree.Types.Delegates != null) {
-                               foreach (Delegate d in Tree.Types.Delegates)
+                       if (root.Delegates != null) {
+                               foreach (Delegate d in root.Delegates)
                                        d.Emit ();
                        }                       
                        //
@@ -634,8 +604,8 @@ namespace Mono.CSharp {
                        if (EmitCodeHook != null)
                                EmitCodeHook ();
 
-                       CodeGen.Assembly.Emit (Tree.Types);
-                       CodeGen.Module.Emit (Tree.Types);
+                       CodeGen.Assembly.Emit (root);
+                       CodeGen.Module.Emit (root);
                }
                
                //
@@ -687,6 +657,14 @@ namespace Mono.CSharp {
                        
                        return fb;
                }
+
+               public static void CheckUnsafeOption (Location loc)
+               {
+                       if (!Unsafe) {
+                               Report.Error (227, loc, 
+                                       "Unsafe code requires the `unsafe' command line option to be specified");
+                       }
+               }
        }
 }