2007-02-11 Miguel de Icaza <miguel@novell.com>
[mono.git] / mcs / mcs / rootcontext.cs
index 795d0c811a356613aa0ca269c7b348f7c7046e2e..07e3d3afd37e032e5a1fcf3745419fa166219ba0 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
@@ -41,7 +42,7 @@ namespace Mono.CSharp {
                // This is only used to tell whether `System.Object' should
                // have a base class or not.
                //
-               public static bool StdLib = true;
+               public static bool StdLib;
 
                //
                // This keeps track of the order in which classes were defined
@@ -62,10 +63,10 @@ namespace Mono.CSharp {
                
                static TypeBuilder impl_details_class;
 
-               public static int WarningLevel = 3;
-               
-               public static Target Target = Target.Exe;
-               public static string TargetExt = ".exe";
+               public static int WarningLevel;
+
+               public static Target Target;
+               public static string TargetExt;
 
                public static bool VerifyClsCompliance = true;
 
@@ -74,7 +75,7 @@ namespace Mono.CSharp {
                /// </summary>
                public static bool Optimize = true;
 
-               public static LanguageVersion Version = LanguageVersion.Default;
+               public static LanguageVersion Version;
 
                //
                // We keep strongname related info here because
@@ -82,36 +83,52 @@ namespace Mono.CSharp {
                //
                public static string StrongNameKeyFile;
                public static string StrongNameKeyContainer;
-               public static bool StrongNameDelaySign = false;
+               public static bool StrongNameDelaySign;
 
                //
                // If set, enable XML documentation generation
                //
                public static Documentation Documentation;
 
+               static public string MainClass;
+
                //
                // Constructor
                //
                static RootContext ()
                {
-                       tree = new Tree ();
+                       Reset ();
+               }
+
+               public static void Reset ()
+               {
+                       root = new RootTypes ();
                        type_container_resolve_order = new ArrayList ();
+                       EntryPoint = null;
+                       WarningLevel = 3;
+                       Checked = false;
+                       Unsafe = false;
+                       StdLib = true;
+                       StrongNameKeyFile = null;
+                       StrongNameKeyContainer = null;
+                       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; }
                }
 
-               static public string MainClass;
-               
                public static void RegisterOrder (TypeContainer tc)
                {
                        type_container_resolve_order.Add (tc);
@@ -120,20 +137,13 @@ namespace Mono.CSharp {
                // 
                // The default compiler checked state
                //
-               static public bool Checked = false;
+               static public bool Checked;
 
                //
                // Whether to allow Unsafe code
                //
-               static public bool Unsafe = false;
+               static public bool Unsafe;
                
-               static string MakeFQN (string nsn, string name)
-               {
-                       if (nsn == "")
-                               return name;
-                       return String.Concat (nsn, ".", name);
-               }
-
                // <remarks>
                //   This function is used to resolve the hierarchy tree.
                //   It processes interfaces, structs and classes in that order.
@@ -149,11 +159,9 @@ 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 (Interface i in ifaces) 
+                               foreach (TypeContainer i in ifaces) 
                                        i.DefineType ();
                        }
 
@@ -184,11 +192,11 @@ 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;
                        }
 
@@ -203,7 +211,10 @@ namespace Mono.CSharp {
                                return null;
                        }
 
-                       return ((DeclSpace) o).DefineType ();
+                       Type t = ((DeclSpace) o).DefineType ();
+                       if (t != null)
+                               AttributeTester.RegisterNonObsoleteType (t);
+                       return t;
                }
 
                //
@@ -213,7 +224,7 @@ 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;
                        }
 
@@ -238,7 +249,7 @@ 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;
                        }
 
@@ -253,7 +264,9 @@ namespace Mono.CSharp {
                                return;
                        }
 
-                       ((DeclSpace) o).DefineType ();
+                       Type t = ((DeclSpace) o).DefineType ();
+                       if (t != null)
+                               AttributeTester.RegisterNonObsoleteType (t);
                }
 
                //
@@ -263,8 +276,8 @@ namespace Mono.CSharp {
                {
                        object o = root.GetDefinition (name);
                        if (o == null){
-                               Report.Error (518, "The predefined type `" + name + "' is not defined");
-                               Environment.Exit (1);
+                               Report.Error (518, "The predefined type `" + name + "' is not defined or imported");
+                               return;
                        }
 
                        if (!(o is Delegate)){
@@ -281,11 +294,17 @@ 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 = {
@@ -302,7 +321,16 @@ 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)
@@ -352,6 +380,9 @@ 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
@@ -360,13 +391,17 @@ 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",
@@ -376,15 +411,23 @@ 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.Security.CodeAccessPermission",
+                               "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.
@@ -406,8 +449,6 @@ namespace Mono.CSharp {
                // </remarks>
                static public void CloseTypes ()
                {
-                       TypeContainer root = Tree.Types;
-                       
                        if (root.Enums != null)
                                foreach (Enum en in root.Enums)
                                        en.CloseType ();
@@ -419,13 +460,13 @@ 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 ();                                        
                        }
                        
@@ -439,7 +480,7 @@ 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 ();
@@ -448,7 +489,7 @@ namespace Mono.CSharp {
                        
                        type_container_resolve_order = null;
                        helper_classes = null;
-                       //tree = null;
+                       //root = null;
                        TypeManager.CleanUp ();
                }
 
@@ -464,23 +505,16 @@ 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");
@@ -495,43 +529,26 @@ 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);
-                                       }
-                               } 
+#if GMCS_SOURCE
+                               foreach (TypeContainer tc in type_container_resolve_order)
+                                       tc.ResolveType ();
+#endif
+                               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);
+                                       d.DefineMembers ();
                        }
 
                        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);
+                                       en.DefineMembers ();
                        }
 
                        //
@@ -559,7 +576,11 @@ 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) {
@@ -572,40 +593,37 @@ 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 ();
+                                       en.Define ();
                        }
                }
 
                static public void EmitCode ()
                {
-                       if (Tree.Types.Enums != null) {
-                               foreach (Enum e in Tree.Types.Enums)
+                       if (root.Enums != null) {
+                               foreach (Enum e in root.Enums)
                                        e.Emit ();
                        }
 
                        if (type_container_resolve_order != null) {
                                foreach (TypeContainer tc in type_container_resolve_order)
                                        tc.EmitType ();
+
+                               if (Report.Errors > 0)
+                                       return;
+
+                               foreach (TypeContainer tc in type_container_resolve_order)
+                                       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 ();
                        }                       
                        //
@@ -616,8 +634,8 @@ 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);
                }
                
                //
@@ -669,6 +687,14 @@ 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");
+                       }
+               }
        }
 }