// 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
//
-// (C) 2001 Ximian, Inc (http://www.ximian.com)
-// (C) 2004 Novell, Inc
+// Dual licensed under the terms of the MIT X11 or GNU GPL
+//
+// Copyright 2001 Ximian, Inc (http://www.ximian.com)
+// Copyright 2004-2008 Novell, Inc
using System;
using System.Collections;
public enum LanguageVersion
{
- Default = 0,
- ISO_1 = 1
+ ISO_1 = 1,
+ Default_MCS = 2,
+ ISO_2 = 3,
+ LINQ = 4,
+ Future = 5,
+
+#if GMCS_SOURCE
+ Default = LINQ
+#else
+ Default = Default_MCS
+#endif
}
public class RootContext {
//
- // Contains the parsed tree
+ // COMPILER OPTIONS CLASS
//
- static Tree tree;
+ public static Target Target;
+ public static string TargetExt;
+ public static bool VerifyClsCompliance = true;
+ public static bool Optimize = true;
+ public static LanguageVersion Version;
//
- // This hashtable contains all of the #definitions across the source code
- // it is used by the ConditionalAttribute handler.
+ // We keep strongname related info here because
+ // it's also used as complier options from CSC 8.x
//
- public static Hashtable AllDefines = new Hashtable ();
+ public static string StrongNameKeyFile;
+ public static string StrongNameKeyContainer;
+ public static bool StrongNameDelaySign;
+
+ //
+ // If set, enable XML documentation generation
+ //
+ public static Documentation Documentation;
+
+ static public string MainClass;
+
+ //
+ // The default compiler checked state
+ //
+ static public bool Checked;
+
+ //
+ // If true, it means that the compiler is executing as
+ // in eval mode so unresolved variables are resolved in
+ // static classes maintained by the eval engine.
+ //
+ static public bool EvalMode;
+
+ //
+ // If true, the compiler is operating in statement mode,
+ // this currently turns local variable declaration into
+ // static variables of a class
+ //
+ static public bool StatementMode;
+ //
+ // Whether to allow Unsafe code
+ //
+ static public bool Unsafe;
+
//
// Whether we are being linked against the standard libraries.
// 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;
+
+ public static bool NeedsEntryPoint {
+ get { return Target == Target.Exe || Target == Target.WinExe; }
+ }
+ //
+ // COMPILER OPTIONS CLASS END
+ //
+
+ //
+ // Contains the parsed tree
+ //
+ static ModuleContainer root;
+
+ //
+ // This hashtable contains all of the #definitions across the source code
+ // it is used by the ConditionalAttribute handler.
+ //
+ static ArrayList AllDefines;
+
//
// This keeps track of the order in which classes were defined
// so that we can poulate them in that order.
// override).
//
static ArrayList type_container_resolve_order;
- static ArrayList attribute_types;
//
// Holds a reference to the Private Implementation Details
static TypeBuilder impl_details_class;
- public static int WarningLevel = 3;
-
- public static Target Target = Target.Exe;
- public static string TargetExt = ".exe";
-
- public static bool VerifyClsCompliance = true;
-
- public static LanguageVersion Version = LanguageVersion.Default;
-
- //
- // We keep strongname related info here because
- // it's also used as complier options from CSC 8.x
- //
- public static string StrongNameKeyFile;
- public static string StrongNameKeyContainer;
- public static bool StrongNameDelaySign = false;
-
- //
- // If set, enable XML documentation generation
- //
- public static Documentation Documentation;
-
//
// Constructor
//
static RootContext ()
{
- tree = new Tree ();
- type_container_resolve_order = new ArrayList ();
- }
-
- public static bool NeedsEntryPoint {
- get {
- return RootContext.Target == Target.Exe || RootContext.Target == Target.WinExe;
- }
+ Reset (true);
}
- static public Tree Tree {
- get {
- return tree;
- }
+ public static void PartialReset ()
+ {
+ Reset (false);
}
-
- static public string MainClass;
- public static void RegisterOrder (TypeContainer tc)
+ public static void Reset (bool full)
{
- type_container_resolve_order.Add (tc);
+ if (full)
+ root = null;
+
+ type_container_resolve_order = new ArrayList ();
+ EntryPoint = null;
+ Report.WarningLevel = 4;
+ 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;
+
+ //
+ // Setup default defines
+ //
+ AllDefines = new ArrayList ();
+ AddConditional ("__MonoCS__");
}
- public static void RegisterAttribute (TypeContainer tc)
+ public static void AddConditional (string p)
{
- if (attribute_types == null)
- attribute_types = new ArrayList ();
-
- attribute_types.Add (tc);
+ if (AllDefines.Contains (p))
+ return;
+ AllDefines.Add (p);
}
-
- //
- // The default compiler checked state
- //
- static public bool Checked = false;
- //
- // Whether to allow Unsafe code
- //
- static public bool Unsafe = false;
-
- static string MakeFQN (string nsn, string name)
+ public static bool IsConditionalDefined (string value)
{
- if (nsn == "")
- return name;
- return String.Concat (nsn, ".", name);
+ return AllDefines.Contains (value);
}
+ static public ModuleContainer ToplevelTypes {
+ get { return root; }
+ set { root = value; }
+ }
+
+ public static void RegisterOrder (TypeContainer tc)
+ {
+ type_container_resolve_order.Add (tc);
+ }
+
// <remarks>
// This function is used to resolve the hierarchy tree.
// It processes interfaces, structs and classes in that order.
// </remarks>
static public void ResolveTree ()
{
- //
- // Process the attribute types separately and before anything else
- //
- if (attribute_types != null)
- foreach (TypeContainer tc in attribute_types)
- tc.DefineType ();
-
+ root.Resolve ();
+
//
// Interfaces are processed next, as classes and
// structs might inherit from an object or implement
// 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)
- i.DefineType ();
- }
+ foreach (TypeContainer tc in root.Types)
+ tc.CreateType ();
foreach (TypeContainer tc in root.Types)
tc.DefineType ();
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");
- }
-
- static void Error_TypeConflict (string name)
- {
- 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");
- return null;
- }
-
- if (!(o is Class)){
- if (o is DeclSpace){
- DeclSpace d = (DeclSpace) o;
-
- Error_TypeConflict (name, d.Location);
- } else
- Error_TypeConflict (name);
-
- return null;
- }
-
- return ((DeclSpace) o).DefineType ();
- }
-
- //
- // Resolves a struct during the corlib bootstrap process
- //
- static void BootstrapCorlib_ResolveStruct (TypeContainer root, string name)
- {
- object o = root.GetDefinition (name);
- if (o == null){
- Report.Error (518, "The predefined type `" + name + "' is not defined");
- return;
- }
-
- if (!(o is Struct)){
- if (o is DeclSpace){
- DeclSpace d = (DeclSpace) o;
-
- Error_TypeConflict (name, d.Location);
- } else
- Error_TypeConflict (name);
-
- return;
- }
-
- ((DeclSpace) o).DefineType ();
}
- //
- // Resolves a struct during the corlib bootstrap process
- //
- static void BootstrapCorlib_ResolveInterface (TypeContainer root, string name)
- {
- object o = root.GetDefinition (name);
- if (o == null){
- Report.Error (518, "The predefined type `" + name + "' is not defined");
- return;
- }
-
- if (!(o is Interface)){
- if (o is DeclSpace){
- DeclSpace d = (DeclSpace) o;
-
- Error_TypeConflict (name, d.Location);
- } else
- Error_TypeConflict (name);
-
- return;
- }
-
- ((DeclSpace) o).DefineType ();
- }
-
- //
- // Resolves a delegate during the corlib bootstrap process
- //
- 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");
- Environment.Exit (1);
- }
-
- if (!(o is Delegate)){
- Error_TypeConflict (name);
- return;
- }
-
- ((DeclSpace) o).DefineType ();
- }
-
-
- /// <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.value_type = BootstrapCorlib_ResolveClass (root, "System.ValueType");
- TypeManager.attribute_type = BootstrapCorlib_ResolveClass (root, "System.Attribute");
-
- string [] interfaces_first_stage = {
- "System.IComparable", "System.ICloneable",
- "System.IConvertible",
-
- "System.Collections.IEnumerable",
- "System.Collections.ICollection",
- "System.Collections.IEnumerator",
- "System.Collections.IList",
- "System.IAsyncResult",
- "System.IDisposable",
-
- "System.Runtime.Serialization.ISerializable",
-
- "System.Reflection.IReflect",
- "System.Reflection.ICustomAttributeProvider"
- };
-
- foreach (string iname in interfaces_first_stage)
- BootstrapCorlib_ResolveInterface (root, iname);
-
- //
- // These are the base value types
- //
- string [] structs_first_stage = {
- "System.Byte", "System.SByte",
- "System.Int16", "System.UInt16",
- "System.Int32", "System.UInt32",
- "System.Int64", "System.UInt64",
- };
-
- foreach (string cname in structs_first_stage)
- BootstrapCorlib_ResolveStruct (root, cname);
-
- //
- // Now, we can load the enumerations, after this point,
- // we can use enums.
- //
- TypeManager.InitEnumUnderlyingTypes ();
-
- string [] structs_second_stage = {
- "System.Single", "System.Double",
- "System.Char", "System.Boolean",
- "System.Decimal", "System.Void",
- "System.RuntimeFieldHandle",
- "System.RuntimeArgumentHandle",
- "System.RuntimeTypeHandle",
- "System.IntPtr",
- "System.TypedReference",
- "System.ArgIterator"
- };
-
- foreach (string cname in structs_second_stage)
- BootstrapCorlib_ResolveStruct (root, cname);
-
- //
- // These are classes that depends on the core interfaces
- //
- string [] classes_second_stage = {
- "System.Reflection.MemberInfo",
- "System.Type",
- "System.Exception",
-
- //
- // These are not really important in the order, but they
- // are used by the compiler later on (typemanager/CoreLookupType-d)
- //
- "System.Runtime.CompilerServices.RuntimeHelpers",
- "System.Reflection.DefaultMemberAttribute",
- "System.Threading.Monitor",
-
- "System.AttributeUsageAttribute",
- "System.Runtime.InteropServices.DllImportAttribute",
- "System.Runtime.CompilerServices.MethodImplAttribute",
- "System.Runtime.InteropServices.MarshalAsAttribute",
- "System.Diagnostics.ConditionalAttribute",
- "System.ObsoleteAttribute",
- "System.ParamArrayAttribute",
- "System.CLSCompliantAttribute",
- "System.Security.UnverifiableCodeAttribute",
- "System.Security.Permissions.SecurityAttribute",
- "System.Runtime.CompilerServices.IndexerNameAttribute",
- "System.Runtime.CompilerServices.DecimalConstantAttribute",
- "System.Runtime.InteropServices.InAttribute",
- "System.Runtime.InteropServices.OutAttribute",
- "System.Runtime.InteropServices.StructLayoutAttribute",
- "System.Runtime.InteropServices.FieldOffsetAttribute",
- "System.InvalidOperationException",
- "System.NotSupportedException",
- "System.MarshalByRefObject",
- "System.Security.CodeAccessPermission"
- };
-
- // We must store them here before calling BootstrapCorlib_ResolveDelegate.
- TypeManager.string_type = BootstrapCorlib_ResolveClass (root, "System.String");
- TypeManager.enum_type = BootstrapCorlib_ResolveClass (root, "System.Enum");
- TypeManager.array_type = BootstrapCorlib_ResolveClass (root, "System.Array");
- TypeManager.multicast_delegate_type = BootstrapCorlib_ResolveClass (root, "System.MulticastDelegate");
- TypeManager.delegate_type = BootstrapCorlib_ResolveClass (root, "System.Delegate");
-
- foreach (string cname in classes_second_stage)
- BootstrapCorlib_ResolveClass (root, cname);
-
- BootstrapCorlib_ResolveDelegate (root, "System.AsyncCallback");
- }
-
// <summary>
// Closes all open types
// </summary>
// </remarks>
static public void CloseTypes ()
{
- TypeContainer root = Tree.Types;
-
- if (root.Enums != null)
- foreach (Enum en in root.Enums)
- en.CloseType ();
-
- if (attribute_types != null)
- foreach (TypeContainer tc in attribute_types)
- tc.CloseType ();
-
//
// We do this in two passes, first we close the structs,
// then the classes, because it seems the code needs it this
// 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 ();
}
// If we have a <PrivateImplementationDetails> class, close it
//
if (helper_classes != null){
- foreach (TypeBuilder type_builder in helper_classes)
+ foreach (TypeBuilder type_builder in helper_classes) {
+ PredefinedAttributes.Get.CompilerGenerated.EmitAttribute (type_builder);
type_builder.CreateType ();
+ }
}
- attribute_types = null;
type_container_resolve_order = null;
helper_classes = null;
- //tree = null;
+ //root = null;
TypeManager.CleanUp ();
}
/// Used to register classes that need to be closed after all the
/// user defined classes
/// </summary>
- public static void RegisterHelperClass (TypeBuilder helper_class)
+ public static void RegisterCompilerGeneratedType (TypeBuilder helper_class)
{
if (helper_classes == null)
helper_classes = new ArrayList ();
- helper_classes.Add (helper_class);
- }
-
- static Type NamespaceLookup (DeclSpace ds, string name, Location loc)
- {
- IAlias result = ds.NamespaceEntry.LookupNamespaceOrType (ds, name, loc);
- if (result == null)
- return null;
-
- if (!result.IsType)
- return null;
- TypeExpr texpr = result.ResolveAsType (ds.EmitContext);
- if (texpr == null)
- return null;
-
- return texpr.Type;
- }
-
- //
- // Public function used to locate types, this can only
- // be used after the ResolveTree function has been invoked.
- //
- // Returns: Type or null if they type can not be found.
- //
- // Come to think of it, this should be a DeclSpace
- //
- static public Type LookupType (DeclSpace ds, string name, bool silent, Location loc)
- {
- Type t;
-
- if (ds.Cache.Contains (name)) {
- t = (Type) ds.Cache [name];
- } else {
- //
- // For the case the type we are looking for is nested within this one
- // or is in any base class
- //
- DeclSpace containing_ds = ds;
- while (containing_ds != null){
-
- // if the member cache has been created, lets use it.
- // the member cache is MUCH faster.
- if (containing_ds.MemberCache != null) {
- t = containing_ds.MemberCache.FindNestedType (name);
- if (t == null) {
- containing_ds = containing_ds.Parent;
- continue;
- }
-
- ds.Cache [name] = t;
- return t;
- }
-
- // no member cache. Do it the hard way -- reflection
- Type current_type = containing_ds.TypeBuilder;
-
- while (current_type != null &&
- current_type != TypeManager.object_type) {
- //
- // nested class
- //
- t = TypeManager.LookupType (current_type.FullName + "." + name);
- if (t != null){
- ds.Cache [name] = t;
- return t;
- }
-
- current_type = current_type.BaseType;
- }
-
- containing_ds = containing_ds.Parent;
- }
-
- t = NamespaceLookup (ds, name, loc);
- if (!silent || t != null)
- ds.Cache [name] = t;
- }
-
- if (t == null && !silent)
- Report.Error (246, loc, "Cannot find type `"+name+"'");
-
- return t;
- }
-
- // <summary>
- // This is the silent version of LookupType, you can use this
- // to `probe' for a type
- // </summary>
- static public Type LookupType (TypeContainer tc, string name, Location loc)
- {
- return LookupType (tc, name, true, loc);
- }
-
- static void Report1530 (Location loc)
- {
- Report.Error (1530, loc, "Keyword new not allowed for namespace elements");
+ helper_classes.Add (helper_class);
}
static public void PopulateCoreType (TypeContainer root, string name)
{
DeclSpace ds = (DeclSpace) root.GetDefinition (name);
+ // Core type was imported
+ if (ds == null)
+ return;
- ds.DefineMembers (root);
ds.Define ();
}
static public void BootCorlib_PopulateCoreTypes ()
{
- TypeContainer root = tree.Types;
-
PopulateCoreType (root, "System.Object");
PopulateCoreType (root, "System.ValueType");
PopulateCoreType (root, "System.Attribute");
+ PopulateCoreType (root, "System.Runtime.CompilerServices.IndexerNameAttribute");
}
// <summary>
// have been defined through `ResolveTree'
static public void PopulateTypes ()
{
- TypeContainer root = Tree.Types;
- if (attribute_types != null)
- foreach (TypeContainer tc in attribute_types)
- tc.DefineMembers (root);
-
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")))
- continue;
-
- tc.DefineMembers (root);
+ foreach (TypeContainer tc in type_container_resolve_order)
+ tc.ResolveType ();
+ foreach (TypeContainer tc in type_container_resolve_order) {
+ try {
+ tc.Define ();
+ } catch (Exception e) {
+ throw new InternalErrorException (tc, e);
}
- }
+ }
}
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.Define ();
}
//
}
}
- //
- // A generic hook delegate
- //
- public delegate void Hook ();
-
- //
- // A hook invoked when the code has been generated.
- //
- public static event Hook EmitCodeHook;
-
- //
- // DefineTypes is used to fill in the members of each type.
- //
- static public void DefineTypes ()
- {
- TypeContainer root = Tree.Types;
-
- if (attribute_types != null)
- foreach (TypeContainer tc in attribute_types)
- tc.Define ();
-
- if (type_container_resolve_order != null){
- foreach (TypeContainer tc in type_container_resolve_order) {
- // When compiling corlib, these types have already been
- // populated from BootCorlib_PopulateCoreTypes ().
- if (!RootContext.StdLib &&
- ((tc.Name == "System.Object") ||
- (tc.Name == "System.Attribute") ||
- (tc.Name == "System.ValueType")))
- continue;
-
- if ((tc.ModFlags & Modifiers.NEW) == 0)
- 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 (attribute_types != null)
- foreach (TypeContainer tc in attribute_types)
+ if (type_container_resolve_order != null) {
+ foreach (TypeContainer tc in type_container_resolve_order)
tc.EmitType ();
- CodeGen.Assembly.Emit (Tree.Types);
- CodeGen.Module.Emit (Tree.Types);
-
- if (Tree.Types.Enums != null) {
- foreach (Enum e in Tree.Types.Enums)
- e.Emit ();
- }
+ if (Report.Errors > 0)
+ return;
- if (type_container_resolve_order != null) {
foreach (TypeContainer tc in type_container_resolve_order)
- tc.EmitType ();
+ 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 ();
}
- //
- // Run any hooks after all the types have been defined.
- // This is used to create nested auxiliary classes for example
- //
- if (EmitCodeHook != null)
- EmitCodeHook ();
+ CodeGen.Assembly.Emit (root);
+ root.Emit ();
}
//
// Public Field, used to track which method is the public entry
// point.
//
- static public MethodInfo EntryPoint;
-
- //
- // Track the location of the entry point.
- //
- static public Location EntryPointLocation;
+ static public Method EntryPoint;
//
// These are used to generate unique names on the structs and fields.
FieldBuilder fb;
if (impl_details_class == null){
- impl_details_class = CodeGen.Module.Builder.DefineType (
+ impl_details_class = ToplevelTypes.Builder.DefineType (
"<PrivateImplementationDetails>",
TypeAttributes.NotPublic,
TypeManager.object_type);
- RegisterHelperClass (impl_details_class);
+ RegisterCompilerGeneratedType (impl_details_class);
}
fb = impl_details_class.DefineInitializedData (
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");
+ }
+ }
}
}
projects / mono.git / blobdiff