public MethodInvocationExpression GetCallbackMethodInvocation(AbstractTypeEmitter invocation, Expression[] args, Reference targetField, MethodEmitter invokeMethodOnTarget) { var @delegate = GetDelegate(invocation, invokeMethodOnTarget); return new MethodInvocationExpression(@delegate, GetCallbackMethod(), args); }
protected override void ImplementInvokeMethodOnTarget(AbstractTypeEmitter invocation, ParameterInfo[] parameters, MethodEmitter invokeMethodOnTarget, Reference targetField) { invokeMethodOnTarget.CodeBuilder.AddStatement( new ExpressionStatement( new MethodInvocationExpression(SelfReference.Self, InvocationMethods.EnsureValidTarget))); base.ImplementInvokeMethodOnTarget(invocation, parameters, invokeMethodOnTarget, targetField); }
public MethodInvocationExpression GetCallbackMethodInvocation(AbstractTypeEmitter invocation, Expression[] args, Reference targetField, MethodEmitter invokeMethodOnTarget) { var allArgs = GetAllArgs(args, targetField); var @delegate = (Reference)invocation.GetField("delegate"); return new MethodInvocationExpression(@delegate, GetCallbackMethod(), allArgs); }
private Reference GetDelegate(AbstractTypeEmitter invocation, MethodEmitter invokeMethodOnTarget) { var closedDelegateType = delegateType.MakeGenericType(invocation.GenericTypeParams); var localReference = invokeMethodOnTarget.CodeBuilder.DeclareLocal(closedDelegateType); var closedMethodOnTarget = method.MethodOnTarget.MakeGenericMethod(invocation.GenericTypeParams); var localTarget = new ReferenceExpression(targetReference); invokeMethodOnTarget.CodeBuilder.AddStatement( SetDelegate(localReference, localTarget, closedDelegateType, closedMethodOnTarget)); return localReference; }
public MethodEmitter CreateAddMethod(string addMethodName, MethodAttributes attributes, MethodInfo methodToOverride) { if (addMethod != null) { throw new InvalidOperationException("An add method exists"); } addMethod = new MethodEmitter(typeEmitter, addMethodName, attributes, methodToOverride); return addMethod; }
protected override MethodEmitter BuildProxiedMethodBody(MethodEmitter emitter, ClassEmitter @class, ProxyGenerationOptions options, INamingScope namingScope) { var targetReference = getTargetReference(@class, MethodToOverride); emitter.CodeBuilder.AddStatement( new ExpressionStatement( new IfNullExpression(targetReference, IfNull(emitter.ReturnType), IfNotNull(targetReference)))); return emitter; }
public MethodEmitter CreateRemoveMethod(string removeMethodName, MethodAttributes attributes, MethodInfo methodToOverride) { if (removeMethod != null) { throw new InvalidOperationException("A remove method exists"); } removeMethod = new MethodEmitter(typeEmitter, removeMethodName, attributes, methodToOverride); return removeMethod; }
public MethodEmitter CreateGetMethod(string name, MethodAttributes attrs, MethodInfo methodToOverride, params Type[] parameters) { if (getMethod != null) { throw new InvalidOperationException("A get method exists"); } getMethod = new MethodEmitter(parentTypeEmitter, name, attrs, methodToOverride); return getMethod; }
public MethodEmitter CreateSetMethod(string name, MethodAttributes attrs, MethodInfo methodToOverride, params Type[] parameters) { if (setMethod != null) { throw new InvalidOperationException("A set method exists"); } setMethod = new MethodEmitter(parentTypeEmitter, name, attrs, methodToOverride); return(setMethod); }
private void InitOutParameters(MethodEmitter emitter, ParameterInfo[] parameters) { for (var index = 0; index < parameters.Length; index++) { var parameter = parameters[index]; if (parameter.IsOut) { emitter.CodeBuilder.AddStatement( new AssignArgumentStatement(new ArgumentReference(parameter.ParameterType, index + 1, parameter.Attributes), new DefaultValueExpression(parameter.ParameterType))); } } }
protected override MethodEmitter BuildProxiedMethodBody(MethodEmitter emitter, ClassEmitter @class, ProxyGenerationOptions options, INamingScope namingScope) { var targetReference = getTargetReference(@class, MethodToOverride); var arguments = ArgumentsUtil.ConvertToArgumentReferenceExpression(MethodToOverride.GetParameters()); emitter.CodeBuilder.AddStatement(new ReturnStatement( new MethodInvocationExpression( targetReference, MethodToOverride, arguments) { VirtualCall = true })); return emitter; }
protected override MethodEmitter BuildProxiedMethodBody(MethodEmitter emitter, ClassEmitter @class, ProxyGenerationOptions options, INamingScope namingScope) { InitOutParameters(emitter, MethodToOverride.GetParameters()); if (emitter.ReturnType == typeof(void)) { emitter.CodeBuilder.AddStatement(new ReturnStatement()); } else { emitter.CodeBuilder.AddStatement(new ReturnStatement(new DefaultValueExpression(emitter.ReturnType))); } return emitter; }
public static void CopyOutAndRefParameters(TypeReference[] dereferencedArguments, LocalReference invocation, MethodInfo method, MethodEmitter emitter) { var parameters = method.GetParameters(); if (!ArgumentsUtil.IsAnyByRef(parameters)) { return; //saving the need to create locals if there is no need } var arguments = StoreInvocationArgumentsInLocal(emitter, invocation); for (var i = 0; i < parameters.Length; i++) { if (!parameters[i].ParameterType.IsByRef) { continue; } emitter.CodeBuilder.AddStatement(AssignArgument(dereferencedArguments, i, arguments)); } }
protected override MethodEmitter BuildProxiedMethodBody(MethodEmitter emitter, ClassEmitter @class, ProxyGenerationOptions options, INamingScope namingScope) { var invocationType = invocation; Trace.Assert(MethodToOverride.IsGenericMethod == invocationType.IsGenericTypeDefinition); var genericArguments = Type.EmptyTypes; var constructor = invocation.GetConstructors()[0]; Expression proxiedMethodTokenExpression; if (MethodToOverride.IsGenericMethod) { // bind generic method arguments to invocation's type arguments genericArguments = emitter.MethodBuilder.GetGenericArguments(); invocationType = invocationType.MakeGenericType(genericArguments); constructor = TypeBuilder.GetConstructor(invocationType, constructor); // Not in the cache: generic method proxiedMethodTokenExpression = new MethodTokenExpression(MethodToOverride.MakeGenericMethod(genericArguments)); } else { var proxiedMethodToken = @class.CreateStaticField(namingScope.GetUniqueName("token_" + MethodToOverride.Name), typeof(MethodInfo)); @class.ClassConstructor.CodeBuilder.AddStatement(new AssignStatement(proxiedMethodToken, new MethodTokenExpression(MethodToOverride))); proxiedMethodTokenExpression = proxiedMethodToken.ToExpression(); } var methodInterceptors = SetMethodInterceptors(@class, namingScope, emitter, proxiedMethodTokenExpression); var dereferencedArguments = IndirectReference.WrapIfByRef(emitter.Arguments); var hasByRefArguments = HasByRefArguments(emitter.Arguments); var arguments = GetCtorArguments(@class, proxiedMethodTokenExpression, dereferencedArguments, methodInterceptors); var ctorArguments = ModifyArguments(@class, arguments); var invocationLocal = emitter.CodeBuilder.DeclareLocal(invocationType); emitter.CodeBuilder.AddStatement(new AssignStatement(invocationLocal, new NewInstanceExpression(constructor, ctorArguments))); if (MethodToOverride.ContainsGenericParameters) { EmitLoadGenricMethodArguments(emitter, MethodToOverride.MakeGenericMethod(genericArguments), invocationLocal); } if (hasByRefArguments) { emitter.CodeBuilder.AddStatement(new TryStatement()); } var proceed = new ExpressionStatement(new MethodInvocationExpression(invocationLocal, InvocationMethods.Proceed)); emitter.CodeBuilder.AddStatement(proceed); if (hasByRefArguments) { emitter.CodeBuilder.AddStatement(new FinallyStatement()); } GeneratorUtil.CopyOutAndRefParameters(dereferencedArguments, invocationLocal, MethodToOverride, emitter); if (hasByRefArguments) { emitter.CodeBuilder.AddStatement(new EndExceptionBlockStatement()); } if (MethodToOverride.ReturnType != typeof(void)) { // Emit code to return with cast from ReturnValue var getRetVal = new MethodInvocationExpression(invocationLocal, InvocationMethods.GetReturnValue); emitter.CodeBuilder.AddStatement(new ReturnStatement(new ConvertExpression(emitter.ReturnType, getRetVal))); } else { emitter.CodeBuilder.AddStatement(new ReturnStatement()); } return emitter; }
private void EmitLoadGenricMethodArguments(MethodEmitter methodEmitter, MethodInfo method, Reference invocationLocal) { var genericParameters = method.GetGenericArguments().FindAll(t => t.IsGenericParameter); var genericParamsArrayLocal = methodEmitter.CodeBuilder.DeclareLocal(typeof(Type[])); methodEmitter.CodeBuilder.AddStatement( new AssignStatement(genericParamsArrayLocal, new NewArrayExpression(genericParameters.Length, typeof(Type)))); for (var i = 0; i < genericParameters.Length; ++i) { methodEmitter.CodeBuilder.AddStatement( new AssignArrayStatement(genericParamsArrayLocal, i, new TypeTokenExpression(genericParameters[i]))); } methodEmitter.CodeBuilder.AddExpression( new MethodInvocationExpression(invocationLocal, InvocationMethods.SetGenericMethodArguments, new ReferenceExpression( genericParamsArrayLocal))); }
private Expression SetMethodInterceptors(ClassEmitter @class, INamingScope namingScope, MethodEmitter emitter, Expression proxiedMethodTokenExpression) { var selector = @class.GetField("__selector"); if(selector == null) { return null; } var methodInterceptorsField = BuildMethodInterceptorsField(@class, MethodToOverride, namingScope); var emptyInterceptors = new NewArrayExpression(0, typeof(IInterceptor)); var selectInterceptors = new MethodInvocationExpression(selector, InterceptorSelectorMethods.SelectInterceptors, new MethodInvocationExpression(null, TypeUtilMethods.GetTypeOrNull, getTargetExpression(@class, MethodToOverride)), proxiedMethodTokenExpression, interceptors.ToExpression()) { VirtualCall = true }; emitter.CodeBuilder.AddExpression( new IfNullExpression(methodInterceptorsField, new AssignStatement(methodInterceptorsField, new NullCoalescingOperatorExpression(selectInterceptors, emptyInterceptors)))); return methodInterceptorsField.ToExpression(); }
private static LocalReference StoreInvocationArgumentsInLocal(MethodEmitter emitter, LocalReference invocation) { var invocationArgs = emitter.CodeBuilder.DeclareLocal(typeof(object[])); emitter.CodeBuilder.AddStatement(GetArguments(invocationArgs, invocation)); return invocationArgs; }