// Ravi Pratap (ravi@ximian.com)
// Marek Safar (marek.safar@seznam.cz)
//
-// Licensed under the terms of the GNU GPL
+// Dual licensed under the terms of the MIT X11 or GNU GPL
//
-// (C) 2001 Ximian, Inc (http://www.ximian.com)
+// Copyright 2001 Ximian, Inc (http://www.ximian.com)
+// Copyright 2003-2003 Novell, Inc (http://www.novell.com)
//
using System;
namespace Mono.CSharp {
- public class EnumMember : MemberCore, IConstant {
- static string[] attribute_targets = new string [] { "field" };
-
- public FieldBuilder builder;
-
- readonly Enum parent_enum;
- readonly Expression ValueExpr;
+ public class EnumMember : Const {
+ protected readonly Enum ParentEnum;
+ protected readonly Expression ValueExpr;
readonly EnumMember prev_member;
- Constant value;
- bool in_transit;
-
- // TODO: remove or simplify
- EmitContext ec;
-
- public EnumMember (Enum parent_enum, EnumMember prev_member, Expression expr,
- MemberName name, Attributes attrs):
- base (parent_enum, name, attrs)
+ public EnumMember (Enum parent, EnumMember prev_member, string name, Expression expr,
+ Attributes attrs, Location loc)
+ : base (parent, new EnumTypeExpr (parent), name, expr, Modifiers.PUBLIC,
+ attrs, loc)
{
- this.parent_enum = parent_enum;
- this.ModFlags = parent_enum.ModFlags;
+ this.ParentEnum = parent;
this.ValueExpr = expr;
this.prev_member = prev_member;
-
- ec = new EmitContext (this, parent_enum, parent_enum, Location, null, null, ModFlags, false);
- ec.InEnumContext = true;
}
- public override void ApplyAttributeBuilder (Attribute a, CustomAttributeBuilder cb)
+ protected class EnumTypeExpr : TypeExpr
{
- if (a.Type == TypeManager.marshal_as_attr_type) {
- UnmanagedMarshal marshal = a.GetMarshal (this);
- if (marshal != null) {
- builder.SetMarshal (marshal);
- }
- return;
- }
+ public readonly Enum Enum;
- if (a.Type.IsSubclassOf (TypeManager.security_attr_type)) {
- a.Error_InvalidSecurityParent ();
- return;
+ public EnumTypeExpr (Enum e)
+ {
+ this.Enum = e;
}
- builder.SetCustomAttribute (cb);
- }
+ protected override TypeExpr DoResolveAsTypeStep (IResolveContext ec)
+ {
+ type = Enum.CurrentType != null ? Enum.CurrentType : Enum.TypeBuilder;
+ return this;
+ }
- public override AttributeTargets AttributeTargets {
- get {
- return AttributeTargets.Field;
+ public override TypeExpr ResolveAsTypeTerminal (IResolveContext ec, bool silent)
+ {
+ return DoResolveAsTypeStep (ec);
}
}
return (t == TypeManager.int32_type || t == TypeManager.uint32_type || t == TypeManager.int64_type ||
t == TypeManager.byte_type || t == TypeManager.sbyte_type || t == TypeManager.short_type ||
t == TypeManager.ushort_type || t == TypeManager.uint64_type || t == TypeManager.char_type ||
- t.IsEnum);
+ TypeManager.IsEnumType (t));
}
-
- public override bool Define ()
- {
- const FieldAttributes attr = FieldAttributes.Public | FieldAttributes.Static | FieldAttributes.Literal;
- TypeBuilder tb = parent_enum.TypeBuilder;
- builder = tb.DefineField (Name, tb, attr);
- ec.ContainerType = tb;
- TypeManager.RegisterConstant (builder, this);
- return true;
+ public object Value {
+ get { return ResolveValue () ? value.GetValue () : null; }
}
- // Because parent is TypeContainer and we have DeclSpace only
- public override void CheckObsoleteness (Location loc)
+ public override bool Define ()
{
- parent_enum.CheckObsoleteness (loc);
-
- ObsoleteAttribute oa = GetObsoleteAttribute ();
- if (oa == null) {
- return;
- }
+ if (!ResolveMemberType ())
+ return false;
- AttributeTester.Report_ObsoleteMessage (oa, GetSignatureForError (), loc);
+ const FieldAttributes attr = FieldAttributes.Public | FieldAttributes.Static | FieldAttributes.Literal;
+ FieldBuilder = Parent.TypeBuilder.DefineField (Name, MemberType, attr);
+ Parent.MemberCache.AddMember (FieldBuilder, this);
+ TypeManager.RegisterConstant (FieldBuilder, this);
+ return true;
}
-
- public bool ResolveValue ()
+
+ protected override Constant DoResolveValue (EmitContext ec)
{
- if (value != null)
- return true;
-
- if (in_transit) {
- Const.Error_CyclicDeclaration (this);
- return false;
- }
-
if (ValueExpr != null) {
- in_transit = true;
Constant c = ValueExpr.ResolveAsConstant (ec, this);
- in_transit = false;
-
if (c == null)
- return false;
+ return null;
if (c is EnumConstant)
c = ((EnumConstant)c).Child;
-
- c = c.ImplicitConversionRequired (parent_enum.UnderlyingType, Location);
+
+ c = c.ImplicitConversionRequired (ec, ParentEnum.UnderlyingType, Location);
if (c == null)
- return false;
+ return null;
if (!IsValidEnumType (c.Type)) {
- Report.Error (1008, Location, "Type byte, sbyte, short, ushort, int, uint, long or ulong expected");
- return false;
+ Enum.Error_1008 (Location);
+ return null;
}
- in_transit = false;
- value = new EnumConstant (c, parent_enum.TypeBuilder);
- return true;
+ return new EnumConstant (c, MemberType);
}
- if (prev_member == null) {
- value = new EnumConstant (New.Constantify (parent_enum.UnderlyingType), parent_enum.TypeBuilder);
- return true;
- }
+ if (prev_member == null)
+ return new EnumConstant (
+ New.Constantify (ParentEnum.UnderlyingType), MemberType);
if (!prev_member.ResolveValue ())
- return false;
-
- in_transit = true;
+ return null;
try {
- value = prev_member.value.Increment ();
- }
- catch (OverflowException) {
- Report.Error (543, Location, "The enumerator value `{0}' is too large to fit in its type `{1}'",
- GetSignatureForError (), TypeManager.CSharpName (parent_enum.UnderlyingType));
- return false;
- }
- in_transit = false;
-
- return true;
- }
-
- public override void Emit ()
- {
- if (OptAttributes != null)
- OptAttributes.Emit ();
-
- if (!ResolveValue ()) {
- // Suppress cyclic errors
- value = new EnumConstant(New.Constantify(parent_enum.UnderlyingType), parent_enum.TypeBuilder);
- return;
- }
-
- builder.SetConstant (value.GetValue ());
- base.Emit ();
- }
-
- public override string GetSignatureForError()
- {
- return String.Concat (parent_enum.GetSignatureForError (), '.', Name);
- }
-
- public override string[] ValidAttributeTargets {
- get {
- return attribute_targets;
- }
- }
-
- public override string DocCommentHeader {
- get { return "F:"; }
- }
-
- #region IConstant Members
-
- public Constant Value {
- get {
- return value;
+ return (EnumConstant) prev_member.value.Increment ();
+ } catch (OverflowException) {
+ Report.Error (543, Location, "The enumerator value `{0}' is too " +
+ "large to fit in its type `{1}'", GetSignatureForError (),
+ TypeManager.CSharpName (ParentEnum.UnderlyingType));
+ return null;
}
}
-
- #endregion
}
/// <summary>
/// Enumeration container
/// </summary>
- public class Enum : DeclSpace {
- Expression BaseType;
- public Type UnderlyingType;
+ public class Enum : TypeContainer
+ {
+ public static readonly string UnderlyingValueField = "value__";
+
+ TypeExpr base_type;
- static MemberList no_list = new MemberList (new object[0]);
-
- public const int AllowedModifiers =
+ const int AllowedModifiers =
Modifiers.NEW |
Modifiers.PUBLIC |
Modifiers.PROTECTED |
Modifiers.INTERNAL |
Modifiers.PRIVATE;
- public Enum (NamespaceEntry ns, DeclSpace parent, Expression type,
+ public Enum (NamespaceEntry ns, DeclSpace parent, TypeExpr type,
int mod_flags, MemberName name, Attributes attrs)
- : base (ns, parent, name, attrs)
+ : base (ns, parent, name, attrs, Kind.Enum)
{
- this.BaseType = type;
- ModFlags = Modifiers.Check (AllowedModifiers, mod_flags,
- IsTopLevel ? Modifiers.INTERNAL : Modifiers.PRIVATE, name.Location);
+ this.base_type = type;
+ int accmods = IsTopLevel ? Modifiers.INTERNAL : Modifiers.PRIVATE;
+ ModFlags = Modifiers.Check (AllowedModifiers, mod_flags, accmods, Location);
}
public void AddEnumMember (EnumMember em)
{
- if (em.Name == "value__") {
- Report.Error (76, em.Location, "An item in an enumeration cannot have an identifier `value__'");
+ if (em.Name == UnderlyingValueField) {
+ Report.Error (76, em.Location, "An item in an enumeration cannot have an identifier `{0}'",
+ UnderlyingValueField);
return;
}
- if (!AddToContainer (em, em.Name))
- return;
+ AddConstant (em);
}
-
- public override TypeBuilder DefineType ()
- {
- if (TypeBuilder != null)
- return TypeBuilder;
-
- if (!(BaseType is TypeLookupExpression)) {
- Report.Error (1008, Location,
- "Type byte, sbyte, short, ushort, int, uint, long or ulong expected");
- return null;
- }
-
- TypeExpr ute = BaseType.ResolveAsTypeTerminal (this, false);
- UnderlyingType = ute.Type;
-
- if (UnderlyingType != TypeManager.int32_type &&
- UnderlyingType != TypeManager.uint32_type &&
- UnderlyingType != TypeManager.int64_type &&
- UnderlyingType != TypeManager.uint64_type &&
- UnderlyingType != TypeManager.short_type &&
- UnderlyingType != TypeManager.ushort_type &&
- UnderlyingType != TypeManager.byte_type &&
- UnderlyingType != TypeManager.sbyte_type) {
- Report.Error (1008, Location,
- "Type byte, sbyte, short, ushort, int, uint, long or ulong expected");
- return null;
- }
-
- if (IsTopLevel) {
- if (TypeManager.NamespaceClash (Name, Location))
- return null;
-
- ModuleBuilder builder = CodeGen.Module.Builder;
- TypeBuilder = builder.DefineType (Name, TypeAttr, TypeManager.enum_type);
- } else {
- TypeBuilder builder = Parent.TypeBuilder;
+ public static void Error_1008 (Location loc)
+ {
+ Report.Error (1008, loc, "Type byte, sbyte, short, ushort, " +
+ "int, uint, long or ulong expected");
+ }
- TypeBuilder = builder.DefineNestedType (
- Basename, TypeAttr, TypeManager.enum_type);
- }
+ protected override bool DefineNestedTypes ()
+ {
+ if (!base.DefineNestedTypes ())
+ return false;
//
// Call MapToInternalType for corlib
//
- TypeBuilder.DefineField ("value__", UnderlyingType,
+ TypeBuilder.DefineField (UnderlyingValueField, UnderlyingType,
FieldAttributes.Public | FieldAttributes.SpecialName
| FieldAttributes.RTSpecialName);
- TypeManager.AddUserType (this);
-
- foreach (EnumMember em in defined_names.Values) {
- if (!em.Define ())
- return null;
- }
-
- return TypeBuilder;
- }
-
- public override bool Define ()
- {
return true;
}
- public override void Emit ()
+ public override bool Define ()
{
- if (OptAttributes != null) {
- OptAttributes.Emit ();
- }
-
- foreach (EnumMember em in defined_names.Values) {
- em.Emit ();
- }
-
- base.Emit ();
+ member_cache = new MemberCache (TypeManager.enum_type, this);
+ DefineContainerMembers (constants);
+ return true;
}
- //
- // IMemberFinder
- //
- public override MemberList FindMembers (MemberTypes mt, BindingFlags bf,
- MemberFilter filter, object criteria)
+ public override bool IsUnmanagedType ()
{
- if ((mt & MemberTypes.Field) == 0)
- return no_list;
-
- EnumMember em = defined_names [criteria] as EnumMember;
- if (em == null)
- return no_list;
-
- FieldBuilder[] fb = new FieldBuilder[] { em.builder };
- return new MemberList (fb);
+ return true;
}
- void VerifyClsName ()
- {
- HybridDictionary dict = new HybridDictionary (defined_names.Count, true);
- foreach (EnumMember em in defined_names.Values) {
- if (!em.IsClsComplianceRequired ())
- continue;
-
- try {
- dict.Add (em.Name, em);
- }
- catch (ArgumentException) {
- Report.SymbolRelatedToPreviousError (em);
- MemberCore col = (MemberCore)dict [em.Name];
-#if GMCS_SOURCE
- Report.Warning (3005, 1, col.Location, "Identifier `{0}' differing only in case is not CLS-compliant", col.GetSignatureForError ());
-#else
- Report.Error (3005, col.Location, "Identifier `{0}' differing only in case is not CLS-compliant", col.GetSignatureForError ());
-#endif
- }
+ public Type UnderlyingType {
+ get {
+ return base_type.Type;
}
- }
+ }
protected override bool VerifyClsCompliance ()
{
if (!base.VerifyClsCompliance ())
return false;
- VerifyClsName ();
-
if (UnderlyingType == TypeManager.uint32_type ||
UnderlyingType == TypeManager.uint64_type ||
UnderlyingType == TypeManager.ushort_type) {
- Report.Error (3009, Location, "`{0}': base type `{1}' is not CLS-compliant", GetSignatureForError (), TypeManager.CSharpName (UnderlyingType));
+ Report.Warning (3009, 1, Location, "`{0}': base type `{1}' is not CLS-compliant", GetSignatureForError (), TypeManager.CSharpName (UnderlyingType));
}
return true;
- }
-
-
- public override MemberCache MemberCache {
- get {
- return null;
- }
- }
+ }
public override AttributeTargets AttributeTargets {
get {
protected override TypeAttributes TypeAttr {
get {
return Modifiers.TypeAttr (ModFlags, IsTopLevel) |
- TypeAttributes.Class | TypeAttributes.Sealed |
- base.TypeAttr;
+ TypeAttributes.Class | TypeAttributes.Sealed | base.TypeAttr;
}
}
-
- //
- // Generates xml doc comments (if any), and if required,
- // handle warning report.
- //
- internal override void GenerateDocComment (DeclSpace ds)
- {
- base.GenerateDocComment (ds);
-
- foreach (EnumMember em in defined_names.Values) {
- em.GenerateDocComment (this);
- }
- }
-
- //
- // Represents header string for documentation comment.
- //
- public override string DocCommentHeader {
- get { return "T:"; }
- }
}
}
projects / mono.git / blobdiff