AsErrorType() публичный Метод

public AsErrorType ( ) : Microsoft.CSharp.RuntimeBinder.Semantics.ErrorType
Результат Microsoft.CSharp.RuntimeBinder.Semantics.ErrorType
Пример #1
0
        public static bool TypeContainsTyVars(CType type, TypeArray typeVars)
        {
        LRecurse:  // Label used for "tail" recursion.
            switch (type.GetTypeKind())
            {
                default:
                    Debug.Assert(false, "Bad Symbol kind in TypeContainsTyVars");
                    return false;

                case TypeKind.TK_UnboundLambdaType:
                case TypeKind.TK_BoundLambdaType:
                case TypeKind.TK_NullType:
                case TypeKind.TK_VoidType:
                case TypeKind.TK_OpenTypePlaceholderType:
                case TypeKind.TK_MethodGroupType:
                    return false;

                case TypeKind.TK_ArrayType:
                case TypeKind.TK_NullableType:
                case TypeKind.TK_ParameterModifierType:
                case TypeKind.TK_PointerType:
                    type = type.GetBaseOrParameterOrElementType();
                    goto LRecurse;

                case TypeKind.TK_AggregateType:
                    { // BLOCK
                        AggregateType ats = type.AsAggregateType();

                        for (int i = 0; i < ats.GetTypeArgsAll().Size; i++)
                        {
                            if (TypeContainsTyVars(ats.GetTypeArgsAll().Item(i), typeVars))
                            {
                                return true;
                            }
                        }
                    }
                    return false;

                case TypeKind.TK_ErrorType:
                    if (type.AsErrorType().HasParent())
                    {
                        ErrorType err = type.AsErrorType();
                        Debug.Assert(err.nameText != null && err.typeArgs != null);

                        for (int i = 0; i < err.typeArgs.Size; i++)
                        {
                            if (TypeContainsTyVars(err.typeArgs.Item(i), typeVars))
                            {
                                return true;
                            }
                        }
                        if (err.HasTypeParent())
                        {
                            type = err.GetTypeParent();
                            goto LRecurse;
                        }
                    }
                    return false;

                case TypeKind.TK_TypeParameterType:
                    if (typeVars != null && typeVars.Size > 0)
                    {
                        int ivar = type.AsTypeParameterType().GetIndexInTotalParameters();
                        return ivar < typeVars.Size && type == typeVars.Item(ivar);
                    }
                    return true;
            }
        }
Пример #2
0
        public static bool TypeContainsType(CType type, CType typeFind)
        {
        LRecurse:  // Label used for "tail" recursion.

            if (type == typeFind || type.Equals(typeFind))
                return true;

            switch (type.GetTypeKind())
            {
                default:
                    Debug.Assert(false, "Bad Symbol kind in TypeContainsType");
                    return false;

                case TypeKind.TK_NullType:
                case TypeKind.TK_VoidType:
                case TypeKind.TK_OpenTypePlaceholderType:
                    // There should only be a single instance of these.
                    Debug.Assert(typeFind.GetTypeKind() != type.GetTypeKind());
                    return false;

                case TypeKind.TK_ArrayType:
                case TypeKind.TK_NullableType:
                case TypeKind.TK_ParameterModifierType:
                case TypeKind.TK_PointerType:
                    type = type.GetBaseOrParameterOrElementType();
                    goto LRecurse;

                case TypeKind.TK_AggregateType:
                    { // BLOCK
                        AggregateType ats = type.AsAggregateType();

                        for (int i = 0; i < ats.GetTypeArgsAll().Size; i++)
                        {
                            if (TypeContainsType(ats.GetTypeArgsAll().Item(i), typeFind))
                                return true;
                        }
                    }
                    return false;

                case TypeKind.TK_ErrorType:
                    if (type.AsErrorType().HasParent())
                    {
                        ErrorType err = type.AsErrorType();
                        Debug.Assert(err.nameText != null && err.typeArgs != null);

                        for (int i = 0; i < err.typeArgs.Size; i++)
                        {
                            if (TypeContainsType(err.typeArgs.Item(i), typeFind))
                                return true;
                        }
                        if (err.HasTypeParent())
                        {
                            type = err.GetTypeParent();
                            goto LRecurse;
                        }
                    }
                    return false;

                case TypeKind.TK_TypeParameterType:
                    return false;
            }
        }
Пример #3
0
        public bool SubstEqualTypesCore(CType typeDst, CType typeSrc, SubstContext pctx)
        {
        LRecurse:  // Label used for "tail" recursion.

            if (typeDst == typeSrc || typeDst.Equals(typeSrc))
            {
                return true;
            }

            switch (typeSrc.GetTypeKind())
            {
                default:
                    Debug.Assert(false, "Bad Symbol kind in SubstEqualTypesCore");
                    return false;

                case TypeKind.TK_NullType:
                case TypeKind.TK_VoidType:
                case TypeKind.TK_OpenTypePlaceholderType:
                    // There should only be a single instance of these.
                    Debug.Assert(typeDst.GetTypeKind() != typeSrc.GetTypeKind());
                    return false;

                case TypeKind.TK_ArrayType:
                    if (typeDst.GetTypeKind() != TypeKind.TK_ArrayType || typeDst.AsArrayType().rank != typeSrc.AsArrayType().rank)
                        return false;
                    goto LCheckBases;

                case TypeKind.TK_ParameterModifierType:
                    if (typeDst.GetTypeKind() != TypeKind.TK_ParameterModifierType ||
                        ((pctx.grfst & SubstTypeFlags.NoRefOutDifference) == 0 &&
                         typeDst.AsParameterModifierType().isOut != typeSrc.AsParameterModifierType().isOut))
                        return false;
                    goto LCheckBases;

                case TypeKind.TK_PointerType:
                case TypeKind.TK_NullableType:
                    if (typeDst.GetTypeKind() != typeSrc.GetTypeKind())
                        return false;
                    LCheckBases:
                    typeSrc = typeSrc.GetBaseOrParameterOrElementType();
                    typeDst = typeDst.GetBaseOrParameterOrElementType();
                    goto LRecurse;

                case TypeKind.TK_AggregateType:
                    if (typeDst.GetTypeKind() != TypeKind.TK_AggregateType)
                        return false;
                    { // BLOCK
                        AggregateType atsSrc = typeSrc.AsAggregateType();
                        AggregateType atsDst = typeDst.AsAggregateType();

                        if (atsSrc.getAggregate() != atsDst.getAggregate())
                            return false;

                        Debug.Assert(atsSrc.GetTypeArgsAll().Size == atsDst.GetTypeArgsAll().Size);

                        // All the args must unify.
                        for (int i = 0; i < atsSrc.GetTypeArgsAll().Size; i++)
                        {
                            if (!SubstEqualTypesCore(atsDst.GetTypeArgsAll().Item(i), atsSrc.GetTypeArgsAll().Item(i), pctx))
                                return false;
                        }
                    }
                    return true;

                case TypeKind.TK_ErrorType:
                    if (!typeDst.IsErrorType() || !typeSrc.AsErrorType().HasParent() || !typeDst.AsErrorType().HasParent())
                        return false;
                    {
                        ErrorType errSrc = typeSrc.AsErrorType();
                        ErrorType errDst = typeDst.AsErrorType();
                        Debug.Assert(errSrc.nameText != null && errSrc.typeArgs != null);
                        Debug.Assert(errDst.nameText != null && errDst.typeArgs != null);

                        if (errSrc.nameText != errDst.nameText || errSrc.typeArgs.Size != errDst.typeArgs.Size)
                            return false;

                        if (errSrc.HasTypeParent() != errDst.HasTypeParent())
                        {
                            return false;
                        }
                        if (errSrc.HasTypeParent())
                        {
                            if (errSrc.GetTypeParent() != errDst.GetTypeParent())
                            {
                                return false;
                            }
                            if (!SubstEqualTypesCore(errDst.GetTypeParent(), errSrc.GetTypeParent(), pctx))
                            {
                                return false;
                            }
                        }
                        else
                        {
                            if (errSrc.GetNSParent() != errDst.GetNSParent())
                            {
                                return false;
                            }
                        }

                        // All the args must unify.
                        for (int i = 0; i < errSrc.typeArgs.Size; i++)
                        {
                            if (!SubstEqualTypesCore(errDst.typeArgs.Item(i), errSrc.typeArgs.Item(i), pctx))
                                return false;
                        }
                    }
                    return true;

                case TypeKind.TK_TypeParameterType:
                    { // BLOCK
                        TypeParameterSymbol tvs = typeSrc.AsTypeParameterType().GetTypeParameterSymbol();
                        int index = tvs.GetIndexInTotalParameters();

                        if (tvs.IsMethodTypeParameter())
                        {
                            if ((pctx.grfst & SubstTypeFlags.DenormMeth) != 0 && tvs.parent != null)
                            {
                                // typeDst == typeSrc was handled above.
                                Debug.Assert(typeDst != typeSrc);
                                return false;
                            }
                            Debug.Assert(tvs.GetIndexInOwnParameters() == tvs.GetIndexInTotalParameters());
                            Debug.Assert(pctx.prgtypeMeth == null || tvs.GetIndexInTotalParameters() < pctx.ctypeMeth);
                            if (index < pctx.ctypeMeth && pctx.prgtypeMeth != null)
                            {
                                return typeDst == pctx.prgtypeMeth[index];
                            }
                            if ((pctx.grfst & SubstTypeFlags.NormMeth) != 0)
                            {
                                return typeDst == GetStdMethTypeVar(index);
                            }
                        }
                        else
                        {
                            if ((pctx.grfst & SubstTypeFlags.DenormClass) != 0 && tvs.parent != null)
                            {
                                // typeDst == typeSrc was handled above.
                                Debug.Assert(typeDst != typeSrc);
                                return false;
                            }
                            Debug.Assert(pctx.prgtypeCls == null || tvs.GetIndexInTotalParameters() < pctx.ctypeCls);
                            if (index < pctx.ctypeCls)
                                return typeDst == pctx.prgtypeCls[index];
                            if ((pctx.grfst & SubstTypeFlags.NormClass) != 0)
                                return typeDst == GetStdClsTypeVar(index);
                        }
                    }
                    return false;
            }
        }
Пример #4
0
        private CType SubstTypeCore(CType type, SubstContext pctx)
        {
            CType typeSrc;
            CType typeDst;

            switch (type.GetTypeKind())
            {
                default:
                    Debug.Assert(false);
                    return type;

                case TypeKind.TK_NullType:
                case TypeKind.TK_VoidType:
                case TypeKind.TK_OpenTypePlaceholderType:
                case TypeKind.TK_MethodGroupType:
                case TypeKind.TK_BoundLambdaType:
                case TypeKind.TK_UnboundLambdaType:
                case TypeKind.TK_NaturalIntegerType:
                case TypeKind.TK_ArgumentListType:
                    return type;

                case TypeKind.TK_ParameterModifierType:
                    typeDst = SubstTypeCore(typeSrc = type.AsParameterModifierType().GetParameterType(), pctx);
                    return (typeDst == typeSrc) ? type : GetParameterModifier(typeDst, type.AsParameterModifierType().isOut);

                case TypeKind.TK_ArrayType:
                    typeDst = SubstTypeCore(typeSrc = type.AsArrayType().GetElementType(), pctx);
                    return (typeDst == typeSrc) ? type : GetArray(typeDst, type.AsArrayType().rank);

                case TypeKind.TK_PointerType:
                    typeDst = SubstTypeCore(typeSrc = type.AsPointerType().GetReferentType(), pctx);
                    return (typeDst == typeSrc) ? type : GetPointer(typeDst);

                case TypeKind.TK_NullableType:
                    typeDst = SubstTypeCore(typeSrc = type.AsNullableType().GetUnderlyingType(), pctx);
                    return (typeDst == typeSrc) ? type : GetNullable(typeDst);

                case TypeKind.TK_AggregateType:
                    if (type.AsAggregateType().GetTypeArgsAll().size > 0)
                    {
                        AggregateType ats = type.AsAggregateType();

                        TypeArray typeArgs = SubstTypeArray(ats.GetTypeArgsAll(), pctx);
                        if (ats.GetTypeArgsAll() != typeArgs)
                            return GetAggregate(ats.getAggregate(), typeArgs);
                    }
                    return type;

                case TypeKind.TK_ErrorType:
                    if (type.AsErrorType().HasParent())
                    {
                        ErrorType err = type.AsErrorType();
                        Debug.Assert(err.nameText != null && err.typeArgs != null);

                        CType pParentType = null;
                        if (err.HasTypeParent())
                        {
                            pParentType = SubstTypeCore(err.GetTypeParent(), pctx);
                        }

                        TypeArray typeArgs = SubstTypeArray(err.typeArgs, pctx);
                        if (typeArgs != err.typeArgs || (err.HasTypeParent() && pParentType != err.GetTypeParent()))
                        {
                            return GetErrorType(pParentType, err.GetNSParent(), err.nameText, typeArgs);
                        }
                    }
                    return type;

                case TypeKind.TK_TypeParameterType:
                    {
                        TypeParameterSymbol tvs = type.AsTypeParameterType().GetTypeParameterSymbol();
                        int index = tvs.GetIndexInTotalParameters();
                        if (tvs.IsMethodTypeParameter())
                        {
                            if ((pctx.grfst & SubstTypeFlags.DenormMeth) != 0 && tvs.parent != null)
                                return type;
                            Debug.Assert(tvs.GetIndexInOwnParameters() == tvs.GetIndexInTotalParameters());
                            if (index < pctx.ctypeMeth)
                            {
                                Debug.Assert(pctx.prgtypeMeth != null);
                                return pctx.prgtypeMeth[index];
                            }
                            else
                            {
                                return ((pctx.grfst & SubstTypeFlags.NormMeth) != 0 ? GetStdMethTypeVar(index) : type);
                            }
                        }
                        if ((pctx.grfst & SubstTypeFlags.DenormClass) != 0 && tvs.parent != null)
                            return type;
                        return index < pctx.ctypeCls ? pctx.prgtypeCls[index] :
                               ((pctx.grfst & SubstTypeFlags.NormClass) != 0 ? GetStdClsTypeVar(index) : type);
                    }
            }
        }
Пример #5
0
        public void ErrAppendType(CType pType, SubstContext pctx, bool fArgs)
        {
            if (pctx != null)
            {
                if (!pctx.FNop())
                {
                    pType = GetTypeManager().SubstType(pType, pctx);
                }
                // We shouldn't use the SubstContext again so set it to NULL.
                pctx = null;
            }

            switch (pType.GetTypeKind())
            {
                case TypeKind.TK_AggregateType:
                    {
                        AggregateType pAggType = pType.AsAggregateType();

                        // Check for a predefined class with a special "nice" name for
                        // error reported.
                        string text = PredefinedTypes.GetNiceName(pAggType.getAggregate());
                        if (text != null)
                        {
                            // Found a nice name.
                            ErrAppendString(text);
                        }
                        else if (pAggType.getAggregate().IsAnonymousType())
                        {
                            ErrAppendPrintf("AnonymousType#{0}", GetTypeID(pAggType));
                            break;
                        }
                        else
                        {
                            if (pAggType.outerType != null)
                            {
                                ErrAppendType(pAggType.outerType, pctx);
                                ErrAppendChar('.');
                            }
                            else
                            {
                                // In a namespace.
                                ErrAppendParentSym(pAggType.getAggregate(), pctx);
                            }
                            ErrAppendName(pAggType.getAggregate().name);
                        }
                        ErrAppendTypeParameters(pAggType.GetTypeArgsThis(), pctx, true);
                        break;
                    }

                case TypeKind.TK_TypeParameterType:
                    if (null == pType.GetName())
                    {
                        // It's a standard type variable.
                        if (pType.AsTypeParameterType().IsMethodTypeParameter())
                        {
                            ErrAppendChar('!');
                        }
                        ErrAppendChar('!');
                        ErrAppendPrintf("{0}", pType.AsTypeParameterType().GetIndexInTotalParameters());
                    }
                    else
                    {
                        ErrAppendName(pType.GetName());
                    }
                    break;

                case TypeKind.TK_ErrorType:
                    if (pType.AsErrorType().HasParent())
                    {
                        Debug.Assert(pType.AsErrorType().nameText != null && pType.AsErrorType().typeArgs != null);
                        ErrAppendParentType(pType, pctx);
                        ErrAppendName(pType.AsErrorType().nameText);
                        ErrAppendTypeParameters(pType.AsErrorType().typeArgs, pctx, true);
                    }
                    else
                    {
                        // Load the string "<error>".
                        Debug.Assert(null == pType.AsErrorType().typeArgs);
                        ErrAppendId(MessageID.ERRORSYM);
                    }
                    break;

                case TypeKind.TK_NullType:
                    // Load the string "<null>".
                    ErrAppendId(MessageID.NULL);
                    break;

                case TypeKind.TK_OpenTypePlaceholderType:
                    // Leave blank.
                    break;

                case TypeKind.TK_BoundLambdaType:
                    ErrAppendId(MessageID.AnonMethod);
                    break;

                case TypeKind.TK_UnboundLambdaType:
                    ErrAppendId(MessageID.Lambda);
                    break;

                case TypeKind.TK_MethodGroupType:
                    ErrAppendId(MessageID.MethodGroup);
                    break;

                case TypeKind.TK_ArgumentListType:
                    ErrAppendString(TokenFacts.GetText(TokenKind.ArgList));
                    break;

                case TypeKind.TK_ArrayType:
                    {
                        CType elementType = pType.AsArrayType().GetBaseElementType();
                        int rank;

                        if (null == elementType)
                        {
                            Debug.Assert(false, "No element type");
                            break;
                        }

                        ErrAppendType(elementType, pctx);

                        for (elementType = pType;
                                elementType != null && elementType.IsArrayType();
                                elementType = elementType.AsArrayType().GetElementType())
                        {
                            rank = elementType.AsArrayType().rank;

                            // Add [] with (rank-1) commas inside
                            ErrAppendChar('[');

#if ! CSEE
                            // known rank.
                            if (rank > 1)
                            {
                                ErrAppendChar('*');
                            }
#endif

                            for (int i = rank; i > 1; --i)
                            {
                                ErrAppendChar(',');
#if ! CSEE

                                ErrAppendChar('*');
#endif
                            }

                            ErrAppendChar(']');
                        }
                        break;
                    }

                case TypeKind.TK_VoidType:
                    ErrAppendName(GetNameManager().Lookup(TokenFacts.GetText(TokenKind.Void)));
                    break;

                case TypeKind.TK_ParameterModifierType:
                    // add ref or out
                    ErrAppendString(pType.AsParameterModifierType().isOut ? "out " : "ref ");

                    // add base type name
                    ErrAppendType(pType.AsParameterModifierType().GetParameterType(), pctx);
                    break;

                case TypeKind.TK_PointerType:
                    // Generate the base type.
                    ErrAppendType(pType.AsPointerType().GetReferentType(), pctx);
                    {
                        // add the trailing *
                        ErrAppendChar('*');
                    }
                    break;

                case TypeKind.TK_NullableType:
                    ErrAppendType(pType.AsNullableType().GetUnderlyingType(), pctx);
                    ErrAppendChar('?');
                    break;

                case TypeKind.TK_NaturalIntegerType:
                default:
                    // Shouldn't happen.
                    Debug.Assert(false, "Bad type kind");
                    break;
            }
        }
Пример #6
0
 protected void ErrAppendParentType(CType pType, SubstContext pctx)
 {
     if (pType.IsErrorType())
     {
         if (pType.AsErrorType().HasTypeParent())
         {
             ErrAppendType(pType.AsErrorType().GetTypeParent(), null);
             ErrAppendChar('.');
         }
         else
         {
             ErrAppendParentCore(pType.AsErrorType().GetNSParent(), pctx);
         }
     }
     else if (pType.IsAggregateType())
     {
         ErrAppendParentCore(pType.AsAggregateType().GetOwningAggregate(), pctx);
     }
     else if (pType.GetBaseOrParameterOrElementType() != null)
     {
         ErrAppendType(pType.GetBaseOrParameterOrElementType(), null);
         ErrAppendChar('.');
     }
 }