CodeGenerator.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ WCF / WCF / 3.5.30729.1 / untmp / Orcas / SP / ndp / cdf / src / WCF / ServiceModel / System / ServiceModel / Dispatcher / CodeGenerator.cs / 1 / CodeGenerator.cs

                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

// ***NOTE*** If this code is changed, make corresponding changes in System.Runtime.Serialization.CodeGenerator also 

namespace System.ServiceModel.Dispatcher 
{ 
    using System;
    using System.Collections; 
    using System.Globalization;
    using System.Xml;
    using System.Reflection;
    using System.Reflection.Emit; 
    using System.IO;
    using System.Security; 
    using System.Security.Permissions; 
    using System.Diagnostics;
    using System.ServiceModel.Diagnostics; 

    /// 
    /// Critical - generates IL into an ILGenerator that was created under an Assert
    ///            generated IL must be correct and must not subvert the type system 
    /// 
    [SecurityCritical(SecurityCriticalScope.Everything)] 
    internal class CodeGenerator 
    {
        static MethodInfo getTypeFromHandle; 
        static MethodInfo stringConcat2;
        static MethodInfo objectToString;
        static MethodInfo boxPointer;
        static MethodInfo unboxPointer; 

        #if USE_REFEMIT 
        AssemblyBuilder assemblyBuilder; 
        ModuleBuilder moduleBuilder;
        TypeBuilder typeBuilder; 
        static int typeCounter;
        MethodBuilder methodBuilder;
        #else
        static Module SerializationModule = typeof(CodeGenerator).Module;   // Can be replaced by different assembly with SkipVerification set to false 
        DynamicMethod dynamicMethod;
 
            #if DEBUG 
        bool allowPrivateMemberAccess;
            #endif 
        #endif

        Type delegateType;
        ILGenerator ilGen; 
        ArrayList argList;
        Stack blockStack; 
        Label methodEndLabel; 

        Hashtable localNames; 
        int lineNo = 1;
        enum CodeGenTrace {None, Save, Tron};
        CodeGenTrace codeGenTrace;
 
        internal CodeGenerator()
        { 
            SourceSwitch codeGenSwitch = OperationInvokerTrace.CodeGenerationSwitch; 
            if ((codeGenSwitch.Level & SourceLevels.Verbose) == SourceLevels.Verbose)
                codeGenTrace = CodeGenTrace.Tron; 
            else if ((codeGenSwitch.Level & SourceLevels.Information) == SourceLevels.Information)
                codeGenTrace = CodeGenTrace.Save;
            else
                codeGenTrace = CodeGenTrace.None; 
        }
 
        static MethodInfo GetTypeFromHandle 
        {
            get 
            {
                if (getTypeFromHandle == null)
                    getTypeFromHandle = typeof(Type).GetMethod("GetTypeFromHandle");
                return getTypeFromHandle; 
            }
        } 
 
        static MethodInfo StringConcat2
        { 
            get
            {
                if (stringConcat2 == null)
                    stringConcat2 = typeof(string).GetMethod("Concat", new Type[] { typeof(string), typeof(string) }); 
                return stringConcat2;
            } 
        } 

        static MethodInfo ObjectToString 
        {
            get
            {
                if (objectToString == null) 
                    objectToString = typeof(object).GetMethod("ToString", new Type[0]);
                return objectToString; 
            } 
        }
 
        static MethodInfo BoxPointer
        {
            get
            { 
                if (boxPointer == null)
                    boxPointer = typeof(Pointer).GetMethod("Box"); 
                return boxPointer; 
            }
        } 

        static MethodInfo UnboxPointer
        {
            get 
            {
                if (unboxPointer == null) 
                    unboxPointer = typeof(Pointer).GetMethod("Unbox"); 
                return unboxPointer;
            } 
        }

        internal void BeginMethod(string methodName, Type delegateType, bool allowPrivateMemberAccess)
        { 
            MethodInfo signature = delegateType.GetMethod("Invoke");
            ParameterInfo[] parameters = signature.GetParameters(); 
            Type[] paramTypes = new Type[parameters.Length]; 
            for (int i = 0; i < parameters.Length; i++)
                paramTypes[i] = parameters[i].ParameterType; 
            BeginMethod(signature.ReturnType, methodName, paramTypes, allowPrivateMemberAccess);
            this.delegateType = delegateType;
        }
 
        void BeginMethod(Type returnType, string methodName, Type[] argTypes, bool allowPrivateMemberAccess)
        { 
            #if USE_REFEMIT 
            string typeName = "Type" + (typeCounter++);
            InitAssemblyBuilder(typeName + "." + methodName); 
            this.typeBuilder = moduleBuilder.DefineType(typeName, TypeAttributes.Public);
            this.methodBuilder = typeBuilder.DefineMethod(methodName, MethodAttributes.Public|MethodAttributes.Static, returnType, argTypes);
            this.ilGen = this.methodBuilder.GetILGenerator();
            #else 
            this.dynamicMethod = new DynamicMethod(methodName, returnType, argTypes, SerializationModule, allowPrivateMemberAccess);
            this.ilGen = this.dynamicMethod.GetILGenerator(); 
                #if DEBUG 
            this.allowPrivateMemberAccess = allowPrivateMemberAccess;
                #endif 
            #endif

            this.methodEndLabel = ilGen.DefineLabel();
            this.blockStack = new Stack(); 
            this.argList = new ArrayList();
            for (int i=0;i"); 
                Else(); 
                Call(ObjectToString);
                EndIf(); 
            }
        }

        internal void Concat2() 
        {
            Call(StringConcat2); 
        } 

        internal void LoadZeroValueIntoLocal(Type type, LocalBuilder local) 
        {
            if (type.IsValueType)
            {
                switch (Type.GetTypeCode(type)) 
                {
                    case TypeCode.Boolean: 
                    case TypeCode.Char: 
                    case TypeCode.SByte:
                    case TypeCode.Byte: 
                    case TypeCode.Int16:
                    case TypeCode.UInt16:
                    case TypeCode.Int32:
                    case TypeCode.UInt32: 
                        ilGen.Emit(OpCodes.Ldc_I4_0);
                        Store(local); 
                        break; 
                    case TypeCode.Int64:
                    case TypeCode.UInt64: 
                        ilGen.Emit(OpCodes.Ldc_I4_0);
                        ilGen.Emit(OpCodes.Conv_I8);
                        Store(local);
                        break; 
                    case TypeCode.Single:
                        ilGen.Emit(OpCodes.Ldc_R4, 0.0F); 
                        Store(local); 
                        break;
                    case TypeCode.Double: 
                        ilGen.Emit(OpCodes.Ldc_R8, 0.0);
                        Store(local);
                        break;
                    case TypeCode.Decimal: 
                    case TypeCode.DateTime:
                    default: 
                        LoadAddress(local); 
                        InitObj(type);
                        break; 
                }
            }
            else
            { 
                Load(null);
                Store(local); 
            } 
        }
    } 

    internal class ArgBuilder
    {
        internal int Index; 
        internal Type ArgType;
        internal ArgBuilder(int index, Type argType) 
        { 
            this.Index = index;
            this.ArgType = argType; 
        }
    }

    internal class IfState 
    {
        Label elseBegin; 
        Label endIf; 

        internal Label EndIf 
        {
            get
            {
                return this.endIf; 
            }
            set 
            { 
                this.endIf= value;
            } 
        }

        internal Label ElseBegin
        { 
            get
            { 
                return this.elseBegin; 
            }
            set 
            {
                this.elseBegin= value;
            }
        } 

    } 
 
}
 


// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
// Copyright (c) Microsoft Corporation. All rights reserved.
                        

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