* MenuAPI.cs: On instance of MenuTracker check if source control is
[mono.git] / mcs / mcs / rootcontext.cs
index f60dd38bdb9b27f21b637bd57837b109cd349c68..baa9af15093de05a3d5c76d8a3a2eb1c00fcf691 100644 (file)
@@ -2,7 +2,9 @@
 // rootcontext.cs: keeps track of our tree representation, and assemblies loaded.
 //
 // Author: Miguel de Icaza (miguel@ximian.com)
-//         Ravi Pratap     (ravi@ximian.com)
+//            Ravi Pratap  (ravi@ximian.com)
+//            Marek Safar  (marek.safar@gmail.com)
+//
 //
 // Licensed under the terms of the GNU GPL
 //
@@ -19,8 +21,16 @@ namespace Mono.CSharp {
 
        public enum LanguageVersion
        {
-               Default = 0,
-               ISO_1   = 1
+               ISO_1           = 1,
+               Default_MCS     = 2,
+               ISO_2           = 3,
+               LINQ            = 4,
+
+#if GMCS_SOURCE
+               Default         = LINQ
+#else
+               Default         = Default_MCS
+#endif
        }
 
        public class RootContext {
@@ -28,7 +38,7 @@ namespace Mono.CSharp {
                //
                // Contains the parsed tree
                //
-               static Tree tree;
+               static RootTypes root;
 
                //
                // This hashtable contains all of the #definitions across the source code
@@ -62,8 +72,6 @@ namespace Mono.CSharp {
                
                static TypeBuilder impl_details_class;
 
-               public static int WarningLevel;
-               
                public static Target Target;
                public static string TargetExt;
 
@@ -101,10 +109,10 @@ namespace Mono.CSharp {
 
                public static void Reset ()
                {
-                       tree = new Tree ();
+                       root = new RootTypes ();
                        type_container_resolve_order = new ArrayList ();
                        EntryPoint = null;
-                       WarningLevel = 3;
+                       Report.WarningLevel = 3;
                        Checked = false;
                        Unsafe = false;
                        StdLib = true;
@@ -113,22 +121,19 @@ namespace Mono.CSharp {
                        StrongNameDelaySign = false;
                        MainClass = null;
                        Target = Target.Exe;
-                       TargetExt = ".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)
@@ -161,13 +166,8 @@ 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 ();
@@ -175,97 +175,81 @@ 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)
-               {
-                       Report.Error (
-                               520, loc, "`" + name + "' conflicts with a predefined type");
-               }
+               delegate bool VerifyBootstrapType (Type t);
 
-               static void Error_TypeConflict (string name)
+               static Type BootstrapCorlib_ResolveType (TypeContainer root, string name, VerifyBootstrapType typeVerifier)
                {
-                       Report.Error (
-                               520, "`" + name + "' conflicts with a predefined type");
-               }
-
-               //
-               // Resolves a single class during the corlib bootstrap process
-               //
-               static TypeBuilder BootstrapCorlib_ResolveClass (TypeContainer root, string name)
-               {
-                       object o = root.GetDefinition (name);
-                       if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
+                       TypeLookupExpression tle = new TypeLookupExpression (name);
+                       Report.DisableReporting ();
+                       TypeExpr te = tle.ResolveAsTypeTerminal (root, false);
+                       Report.EnableReporting ();
+                       if (te == null) {
+                               Report.Error (518, "The predefined type `{0}' is not defined or imported", name);
                                return null;
                        }
 
-                       if (!(o is Class)){
-                               if (o is DeclSpace){
-                                       DeclSpace d = (DeclSpace) o;
-
-                                       Error_TypeConflict (name, d.Location);
-                               } else
-                                       Error_TypeConflict (name);
+                       Type t = te.Type;
+                       if (!typeVerifier (t)) {
+                               MemberCore mc = root.GetDefinition (name);
+                               Location loc = Location.Null;
+                               if (mc != null) {
+                                       name = mc.GetSignatureForError ();
+                                       loc = mc.Location;
+                               }
 
+                               Report.Error (520, loc, "The predefined type `{0}' is not declared correctly", name);
                                return null;
                        }
 
-                       return ((DeclSpace) o).DefineType ();
+                       AttributeTester.RegisterNonObsoleteType (t);
+                       return t;
                }
-
                //
-               // Resolves a struct during the corlib bootstrap process
+               // Resolves a single class during the corlib bootstrap process
                //
-               static void BootstrapCorlib_ResolveStruct (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 or imported");
-                               return;
-                       }
-
-                       if (!(o is Struct)){
-                               if (o is DeclSpace){
-                                       DeclSpace d = (DeclSpace) o;
-
-                                       Error_TypeConflict (name, d.Location);
-                               } else
-                                       Error_TypeConflict (name);
-
-                               return;
-                       }
+                       return BootstrapCorlib_ResolveType (root, name, IsClass);
+               }
 
-                       ((DeclSpace) o).DefineType ();
+               static bool IsClass (Type t)
+               {
+                       DeclSpace ds = TypeManager.LookupDeclSpace (t);
+                       if (ds != null)
+                               return ds is Class;
+                       return t.IsClass;
                }
 
                //
                // Resolves a struct during the corlib bootstrap process
                //
-               static void BootstrapCorlib_ResolveInterface (TypeContainer root, string name)
+               static Type BootstrapCorlib_ResolveStruct (TypeContainer root, string name)
                {
-                       object o = root.GetDefinition (name);
-                       if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
-                               return;
-                       }
-
-                       if (!(o is Interface)){
-                               if (o is DeclSpace){
-                                       DeclSpace d = (DeclSpace) o;
+                       return BootstrapCorlib_ResolveType (root, name, IsStruct);
+               }
 
-                                       Error_TypeConflict (name, d.Location);
-                               } else
-                                       Error_TypeConflict (name);
+               static bool IsStruct (Type t)
+               {
+                       DeclSpace ds = TypeManager.LookupDeclSpace (t);
+                       if (ds != null)
+                               return ds is Struct;
+                       
+                       return TypeManager.IsSubclassOf (t, TypeManager.value_type);                    
+               }
 
-                               return;
-                       }
+               //
+               // Resolves an interface during the corlib bootstrap process
+               //
+               static void BootstrapCorlib_ResolveInterface (TypeContainer root, string name)
+               {
+                       BootstrapCorlib_ResolveType (root, name, IsInterface);
+               }
 
-                       ((DeclSpace) o).DefineType ();
+               static bool IsInterface (Type t)
+               {
+                       return t.IsInterface;
                }
 
                //
@@ -273,33 +257,35 @@ namespace Mono.CSharp {
                //
                static void BootstrapCorlib_ResolveDelegate (TypeContainer root, string name)
                {
-                       object o = root.GetDefinition (name);
-                       if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
-                               return;
-                       }
-
-                       if (!(o is Delegate)){
-                               Error_TypeConflict (name);
-                               return;
-                       }
+                       BootstrapCorlib_ResolveType (root, name, IsDelegate);
+               }
 
-                       ((DeclSpace) o).DefineType ();
+               static bool IsDelegate (Type t)
+               {
+                       return TypeManager.IsDelegateType (t);
                }
-               
 
                /// <summary>
                ///    Resolves the core types in the compiler when compiling with --nostdlib
                /// </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");
+                       if (TypeManager.obsolete_attribute_type != null) {
+                               Class c = TypeManager.LookupClass (TypeManager.obsolete_attribute_type);
+                               c.DefineMembers ();
+                       }
+                       
                        TypeManager.indexer_name_type = BootstrapCorlib_ResolveClass (root, "System.Runtime.CompilerServices.IndexerNameAttribute");
                        
                        string [] interfaces_first_stage = {
@@ -316,7 +302,16 @@ 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)
@@ -331,7 +326,7 @@ namespace Mono.CSharp {
                                "System.Int32",   "System.UInt32",
                                "System.Int64",   "System.UInt64",
                        };
-
+                       
                        foreach (string cname in structs_first_stage)
                                BootstrapCorlib_ResolveStruct (root, cname);
 
@@ -343,7 +338,7 @@ namespace Mono.CSharp {
 
                        string [] structs_second_stage = {
                                "System.Single",  "System.Double",
-                               "System.Char",    "System.Boolean",
+                               "System.Char",
                                "System.Decimal", "System.Void",
                                "System.RuntimeFieldHandle",
                                "System.RuntimeArgumentHandle",
@@ -353,6 +348,8 @@ namespace Mono.CSharp {
                                "System.ArgIterator"
                        };
                        
+                       TypeManager.bool_type = BootstrapCorlib_ResolveStruct (root, "System.Boolean");
+                       
                        foreach (string cname in structs_second_stage)
                                BootstrapCorlib_ResolveStruct (root, cname);
                        
@@ -366,6 +363,9 @@ 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
@@ -374,13 +374,17 @@ 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",
@@ -390,6 +394,9 @@ 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",
@@ -401,14 +408,13 @@ namespace Mono.CSharp {
 
                        foreach (string cname in classes_second_stage)
                                BootstrapCorlib_ResolveClass (root, cname);
+#if GMCS_SOURCE
+                       BootstrapCorlib_ResolveStruct (root, "System.Nullable`1");
+#endif
+                       TypeManager.delegate_type = BootstrapCorlib_ResolveClass (root, "System.Delegate");
+                       BootstrapCorlib_ResolveClass (root, "System.MulticastDelegate");
 
                        BootstrapCorlib_ResolveDelegate (root, "System.AsyncCallback");
-
-                       // These will be defined indirectly during the previous ResolveDelegate.
-                       // However make sure the rest of the checks happen.
-                       string [] delegate_types = { "System.Delegate", "System.MulticastDelegate" };
-                       foreach (string cname in delegate_types)
-                               BootstrapCorlib_ResolveClass (root, cname);
                }
                        
                // <summary>
@@ -423,12 +429,6 @@ 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
@@ -436,13 +436,13 @@ 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 ();                                        
                        }
                        
@@ -456,7 +456,7 @@ 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 ();
@@ -465,7 +465,7 @@ namespace Mono.CSharp {
                        
                        type_container_resolve_order = null;
                        helper_classes = null;
-                       //tree = null;
+                       //root = null;
                        TypeManager.CleanUp ();
                }
 
@@ -484,6 +484,9 @@ namespace Mono.CSharp {
                static public void PopulateCoreType (TypeContainer root, string name)
                {
                        DeclSpace ds = (DeclSpace) root.GetDefinition (name);
+                       // Core type was imported
+                       if (ds == null)
+                               return;
 
                        ds.DefineMembers ();
                        ds.Define ();
@@ -491,8 +494,6 @@ namespace Mono.CSharp {
                
                static public void BootCorlib_PopulateCoreTypes ()
                {
-                       TypeContainer root = tree.Types;
-
                        PopulateCoreType (root, "System.Object");
                        PopulateCoreType (root, "System.ValueType");
                        PopulateCoreType (root, "System.Attribute");
@@ -507,9 +508,10 @@ namespace Mono.CSharp {
                // have been defined through `ResolveTree' 
                static public void PopulateTypes ()
                {
-                       TypeContainer root = Tree.Types;
 
                        if (type_container_resolve_order != null){
+                               foreach (TypeContainer tc in type_container_resolve_order)
+                                       tc.ResolveType ();
                                foreach (TypeContainer tc in type_container_resolve_order)
                                        tc.DefineMembers ();
                        }
@@ -520,12 +522,6 @@ namespace Mono.CSharp {
                                        d.DefineMembers ();
                        }
 
-                       ArrayList enums = root.Enums;
-                       if (enums != null){
-                               foreach (Enum en in enums)
-                                       en.DefineMembers ();
-                       }
-
                        //
                        // Check for cycles in the struct layout
                        //
@@ -551,8 +547,6 @@ namespace Mono.CSharp {
                //
                static public void DefineTypes ()
                {
-                       TypeContainer root = Tree.Types;
-
                        ArrayList delegates = root.Delegates;
                        if (delegates != null){
                                foreach (Delegate d in delegates)
@@ -573,21 +567,10 @@ namespace Mono.CSharp {
                                        tc.Define ();
                                }
                        }
-
-                       ArrayList enums = root.Enums;
-                       if (enums != null){
-                               foreach (Enum en in enums)
-                                       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 ();
@@ -599,8 +582,8 @@ 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 ();
                        }                       
                        //
@@ -611,8 +594,8 @@ 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);
                }
                
                //