Code:
/ FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / clr / src / BCL / System / Reflection / Emit / SymbolType.cs / 1 / SymbolType.cs
// ==++== // // Copyright (c) Microsoft Corporation. All rights reserved. // // ==--== namespace System.Reflection.Emit { using System.Runtime.InteropServices; using System; using System.Reflection; using CultureInfo = System.Globalization.CultureInfo; [Serializable] internal enum TypeKind { IsArray = 1, IsPointer = 2, IsByRef = 3, } // This is a kind of Type object that will represent the compound expression of a parameter type or field type. internal sealed class SymbolType : Type { #region Static Members internal static Type FormCompoundType(char[] bFormat, Type baseType, int curIndex) { // This function takes a string to describe the compound type, such as "[,][]", and a baseType. // // Example: [2..4] - one dimension array with lower bound 2 and size of 3 // Example: [3, 5, 6] - three dimension array with lower bound 3, 5, 6 // Example: [-3, ] [] - one dimensional array of two dimensional array (with lower bound -3 for // the first dimension) // Example: []* - pointer to a one dimensional array // Example: *[] - one dimensional array. The element type is a pointer to the baseType // Example: []& - ByRef of a single dimensional array. Only one & is allowed and it must appear the last! // Example: [?] - Array with unknown bound SymbolType symbolType; int iLowerBound; int iUpperBound; if (bFormat == null || curIndex == bFormat.Length) { // we have consumed all of the format string return baseType; } if (bFormat[curIndex] == '&') { // ByRef case symbolType = new SymbolType(TypeKind.IsByRef); symbolType.SetFormat(bFormat, curIndex, 1); curIndex++; if (curIndex != bFormat.Length) // ByRef has to be the last char!! throw new ArgumentException(Environment.GetResourceString("Argument_BadSigFormat")); symbolType.SetElementType(baseType); return symbolType; } if (bFormat[curIndex] == '[') { // Array type. symbolType = new SymbolType(TypeKind.IsArray); int startIndex = curIndex; curIndex++; iLowerBound = 0; iUpperBound = -1; // Example: [2..4] - one dimension array with lower bound 2 and size of 3 // Example: [3, 5, 6] - three dimension array with lower bound 3, 5, 6 // Example: [-3, ] [] - one dimensional array of two dimensional array (with lower bound -3 sepcified) while (bFormat[curIndex] != ']') { if (bFormat[curIndex] == '*') { symbolType.m_isSzArray = false; curIndex++; } // consume, one dimension at a time if ((bFormat[curIndex] >= '0' && bFormat[curIndex] <= '9') || bFormat[curIndex] == '-') { bool isNegative = false; if (bFormat[curIndex] == '-') { isNegative = true; curIndex++; } // lower bound is specified. Consume the low bound while (bFormat[curIndex] >= '0' && bFormat[curIndex] <= '9') { iLowerBound = iLowerBound * 10; iLowerBound += bFormat[curIndex] - '0'; curIndex++; } if (isNegative) { iLowerBound = 0 - iLowerBound; } // set the upper bound to be less than LowerBound to indicate that upper bound it not specified yet! iUpperBound = iLowerBound - 1; } if (bFormat[curIndex] == '.') { // upper bound is specified // skip over ".." curIndex++; if (bFormat[curIndex] != '.') { // bad format!! Throw exception throw new ArgumentException(Environment.GetResourceString("Argument_BadSigFormat")); } curIndex++; // consume the upper bound if ((bFormat[curIndex] >= '0' && bFormat[curIndex] <= '9') || bFormat[curIndex] == '-') { bool isNegative = false; iUpperBound = 0; if (bFormat[curIndex] == '-') { isNegative = true; curIndex++; } // lower bound is specified. Consume the low bound while (bFormat[curIndex] >= '0' && bFormat[curIndex] <= '9') { iUpperBound = iUpperBound * 10; iUpperBound += bFormat[curIndex] - '0'; curIndex++; } if (isNegative) { iUpperBound = 0 - iUpperBound; } if (iUpperBound < iLowerBound) { // User specified upper bound less than lower bound, this is an error. // Throw error exception. throw new ArgumentException(Environment.GetResourceString("Argument_BadSigFormat")); } } } if (bFormat[curIndex] == ',') { // We have more dimension to deal with. // now set the lower bound, the size, and increase the dimension count! curIndex++; symbolType.SetBounds(iLowerBound, iUpperBound); // clear the lower and upper bound information for next dimension iLowerBound = 0; iUpperBound = -1; } else if (bFormat[curIndex] != ']') { throw new ArgumentException(Environment.GetResourceString("Argument_BadSigFormat")); } } // The last dimension information symbolType.SetBounds(iLowerBound, iUpperBound); // skip over ']' curIndex++; symbolType.SetFormat(bFormat, startIndex, curIndex - startIndex); // set the base type of array symbolType.SetElementType(baseType); return FormCompoundType(bFormat, symbolType, curIndex); } else if (bFormat[curIndex] == '*') { // pointer type. symbolType = new SymbolType(TypeKind.IsPointer); symbolType.SetFormat(bFormat, curIndex, 1); curIndex++; symbolType.SetElementType(baseType); return FormCompoundType(bFormat, symbolType, curIndex); } return null; } #endregion #region Data Members internal TypeKind m_typeKind; internal Type m_baseType; internal int m_cRank; // count of dimension // If LowerBound and UpperBound is equal, that means one element. // If UpperBound is less than LowerBound, then the size is not specified. internal int[] m_iaLowerBound; internal int[] m_iaUpperBound; // count of dimension private char[] m_bFormat; // format string to form the full name. private bool m_isSzArray = true; #endregion #region Constructor internal SymbolType(TypeKind typeKind) { m_typeKind = typeKind; m_iaLowerBound = new int[4]; m_iaUpperBound = new int[4]; } #endregion #region Internal Members internal void SetElementType(Type baseType) { if (baseType == null) throw new ArgumentNullException("baseType"); m_baseType = baseType; } internal void SetBounds(int lower, int upper) { // Increase the rank, set lower and upper bound if (lower != 0 || upper != -1) m_isSzArray = false; if (m_iaLowerBound.Length <= m_cRank) { // resize the bound array int[] iaTemp = new int[m_cRank * 2]; Array.Copy(m_iaLowerBound, iaTemp, m_cRank); m_iaLowerBound = iaTemp; Array.Copy(m_iaUpperBound, iaTemp, m_cRank); m_iaUpperBound = iaTemp; } m_iaLowerBound[m_cRank] = lower; m_iaUpperBound[m_cRank] = upper; m_cRank++; } internal void SetFormat(char[] bFormat, int curIndex, int length) { // Cache the text display format for this SymbolType char[] bFormatTemp = new char[length]; Array.Copy(bFormat, curIndex, bFormatTemp, 0, length); m_bFormat = bFormatTemp; } #endregion #region Type Overrides internal override bool IsSzArray { get { if (m_cRank > 1) return false; return m_isSzArray; } } public override Type MakePointerType() { return SymbolType.FormCompoundType((new String(m_bFormat) + "*").ToCharArray(), m_baseType, 0); } public override Type MakeByRefType() { return SymbolType.FormCompoundType((new String(m_bFormat) + "&").ToCharArray(), m_baseType, 0); } public override Type MakeArrayType() { return SymbolType.FormCompoundType((new String(m_bFormat) + "[]").ToCharArray(), m_baseType, 0); } public override Type MakeArrayType(int rank) { if (rank <= 0) throw new IndexOutOfRangeException(); string szrank = ""; if (rank == 1) { szrank = "*"; } else { for(int i = 1; i < rank; i++) szrank += ","; } string s = String.Format(CultureInfo.InvariantCulture, "[{0}]", szrank); // [,,] SymbolType st = SymbolType.FormCompoundType((new String(m_bFormat) + s).ToCharArray(), m_baseType, 0) as SymbolType; return st; } public override int GetArrayRank() { if (!IsArray) throw new NotSupportedException(Environment.GetResourceString("NotSupported_SubclassOverride")); return m_cRank; } internal override int MetadataTokenInternal { get { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } } public override Guid GUID { get { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } } public override Object InvokeMember(String name, BindingFlags invokeAttr, Binder binder, Object target, Object[] args, ParameterModifier[] modifiers, CultureInfo culture, String[] namedParameters) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override Module Module { get { Type baseType; for (baseType = m_baseType; baseType is SymbolType; baseType = ((SymbolType) baseType).m_baseType); return baseType.Module; } } public override Assembly Assembly { get { Type baseType; for (baseType = m_baseType; baseType is SymbolType; baseType = ((SymbolType) baseType).m_baseType); return baseType.Assembly; } } public override RuntimeTypeHandle TypeHandle { get { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } } public override String Name { get { Type baseType; String sFormat = new String(m_bFormat); for (baseType = m_baseType; baseType is SymbolType; baseType = ((SymbolType)baseType).m_baseType) sFormat = new String(((SymbolType)baseType).m_bFormat) + sFormat; return baseType.Name + sFormat; } } public override String FullName { get { return TypeNameBuilder.ToString(this, TypeNameBuilder.Format.FullName); } } public override String AssemblyQualifiedName { get { return TypeNameBuilder.ToString(this, TypeNameBuilder.Format.AssemblyQualifiedName); } } public override String ToString() { return TypeNameBuilder.ToString(this, TypeNameBuilder.Format.ToString); } public override String Namespace { get { return m_baseType.Namespace; } } public override Type BaseType { get { return typeof(System.Array); } } protected override ConstructorInfo GetConstructorImpl(BindingFlags bindingAttr,Binder binder, CallingConventions callConvention, Type[] types,ParameterModifier[] modifiers) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } [System.Runtime.InteropServices.ComVisible(true)] public override ConstructorInfo[] GetConstructors(BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } protected override MethodInfo GetMethodImpl(String name,BindingFlags bindingAttr,Binder binder, CallingConventions callConvention, Type[] types,ParameterModifier[] modifiers) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override MethodInfo[] GetMethods(BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override FieldInfo GetField(String name, BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override FieldInfo[] GetFields(BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override Type GetInterface(String name,bool ignoreCase) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override Type[] GetInterfaces() { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override EventInfo GetEvent(String name,BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override EventInfo[] GetEvents() { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } protected override PropertyInfo GetPropertyImpl(String name, BindingFlags bindingAttr, Binder binder, Type returnType, Type[] types, ParameterModifier[] modifiers) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override PropertyInfo[] GetProperties(BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override Type[] GetNestedTypes(BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override Type GetNestedType(String name, BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override MemberInfo[] GetMember(String name, MemberTypes type, BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override MemberInfo[] GetMembers(BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } [System.Runtime.InteropServices.ComVisible(true)] public override InterfaceMapping GetInterfaceMap(Type interfaceType) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override EventInfo[] GetEvents(BindingFlags bindingAttr) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } protected override TypeAttributes GetAttributeFlagsImpl() { // Return the attribute flags of the base type? Type baseType; for (baseType = m_baseType; baseType is SymbolType; baseType = ((SymbolType)baseType).m_baseType); return baseType.Attributes; } protected override bool IsArrayImpl() { return m_typeKind == TypeKind.IsArray; } protected override bool IsPointerImpl() { return m_typeKind == TypeKind.IsPointer; } protected override bool IsByRefImpl() { return m_typeKind == TypeKind.IsByRef; } protected override bool IsPrimitiveImpl() { return false; } protected override bool IsValueTypeImpl() { return false; } protected override bool IsCOMObjectImpl() { return false; } public override Type GetElementType() { return m_baseType; } protected override bool HasElementTypeImpl() { return m_baseType != null; } public override Type UnderlyingSystemType { get { return this; } } public override Object[] GetCustomAttributes(bool inherit) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override Object[] GetCustomAttributes(Type attributeType, bool inherit) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } public override bool IsDefined (Type attributeType, bool inherit) { throw new NotSupportedException(Environment.GetResourceString("NotSupported_NonReflectedType")); } #endregion } }
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