本文整理汇总了C#中MethodBody.InsertAtMethodReturnPoint方法的典型用法代码示例。如果您正苦于以下问题：C# MethodBody.InsertAtMethodReturnPoint方法的具体用法？C# MethodBody.InsertAtMethodReturnPoint怎么用？C# MethodBody.InsertAtMethodReturnPoint使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MethodBody的用法示例。
在下文中一共展示了MethodBody.InsertAtMethodReturnPoint方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C#代码示例。
示例1: InjectMethodReturnGuard
void InjectMethodReturnGuard(ValidationFlags localValidationFlags, MethodDefinition method, MethodBody body, SequencePoint seqPoint)
{
var guardInstructions = new List<Instruction>();
var returnPoints = body.Instructions
.Select((o, ix) => new { o, ix })
.Where(a => a.o.OpCode == OpCodes.Ret)
.Select(a => a.ix)
.OrderByDescending(ix => ix);
foreach (var ret in returnPoints)
{
if (localValidationFlags.HasFlag(ValidationFlags.ReturnValues) &&
!method.AllowsNullReturnValue() &&
method.ReturnType.IsRefType() &&
method.ReturnType.FullName != typeof(void).FullName &&
!method.IsGetter)
{
var errorMessage = string.Format(CultureInfo.InvariantCulture, ReturnValueOfMethodIsNull, method.FullName);
AddReturnNullGuard(body, seqPoint, ret, method.ReturnType, errorMessage, Instruction.Create(OpCodes.Throw));
}
if (localValidationFlags.HasFlag(ValidationFlags.Arguments))
{
foreach (var parameter in method.Parameters.Reverse())
{
// This is no longer the return instruction location, but it is where we want to jump to.
var returnInstruction = body.Instructions[ret];
if (localValidationFlags.HasFlag(ValidationFlags.OutValues) &&
parameter.IsOut &&
parameter.ParameterType.IsRefType() &&
!parameter.AllowsNull())
{
var errorMessage = string.Format(CultureInfo.InvariantCulture, OutParameterIsNull, parameter.Name);
guardInstructions.Clear();
if (isDebug)
{
InstructionPatterns.LoadArgumentOntoStack(guardInstructions, parameter);
InstructionPatterns.CallDebugAssertInstructions(guardInstructions, errorMessage);
}
InstructionPatterns.LoadArgumentOntoStack(guardInstructions, parameter);
InstructionPatterns.IfNull(guardInstructions, returnInstruction, i =>
{
InstructionPatterns.LoadInvalidOperationException(i, errorMessage);
// Throw the top item off the stack
i.Add(Instruction.Create(OpCodes.Throw));
});
guardInstructions[0].HideLineFromDebugger(seqPoint);
body.InsertAtMethodReturnPoint(ret, guardInstructions);
}
}
}
}
}示例2: AddReturnNullGuard
void AddReturnNullGuard(MethodBody methodBody, SequencePoint seqPoint, int ret, TypeReference returnType, string errorMessage, params Instruction[] finalInstructions)
{
var returnInstruction = methodBody.Instructions[ret];
var guardInstructions = new List<Instruction>();
if (isDebug)
{
InstructionPatterns.DuplicateReturnValue(guardInstructions, returnType);
InstructionPatterns.CallDebugAssertInstructions(guardInstructions, errorMessage);
}
InstructionPatterns.DuplicateReturnValue(guardInstructions, returnType);
InstructionPatterns.IfNull(guardInstructions, returnInstruction, i =>
{
// Clean up the stack (important if finalInstructions doesn't throw, e.g. for async methods):
i.Add(Instruction.Create(OpCodes.Pop));
InstructionPatterns.LoadInvalidOperationException(i, errorMessage);
i.AddRange(finalInstructions);
});
guardInstructions[0].HideLineFromDebugger(seqPoint);
methodBody.InsertAtMethodReturnPoint(ret, guardInstructions);
}示例3: InjectPropertyGetterGuard
void InjectPropertyGetterGuard(MethodBody getBody, SequencePoint seqPoint, PropertyReference property)
{
var guardInstructions = new List<Instruction>();
var returnPoints = getBody.Instructions
.Select((o, i) => new { o, i })
.Where(a => a.o.OpCode == OpCodes.Ret)
.Select(a => a.i)
.OrderByDescending(i => i);
foreach (var ret in returnPoints)
{
var returnInstruction = getBody.Instructions[ret];
var errorMessage = string.Format(CultureInfo.InvariantCulture, ReturnValueOfPropertyIsNull, property.FullName);
guardInstructions.Clear();
if (isDebug)
{
InstructionPatterns.DuplicateReturnValue(guardInstructions, property.PropertyType);
InstructionPatterns.CallDebugAssertInstructions(guardInstructions, errorMessage);
}
InstructionPatterns.DuplicateReturnValue(guardInstructions, property.PropertyType);
InstructionPatterns.IfNull(guardInstructions, returnInstruction, i =>
{
// Clean up the stack since we're about to throw up.
i.Add(Instruction.Create(OpCodes.Pop));
InstructionPatterns.LoadInvalidOperationException(i, errorMessage);
// Throw the top item off the stack
i.Add(Instruction.Create(OpCodes.Throw));
});
guardInstructions[0].HideLineFromDebugger(seqPoint);
getBody.InsertAtMethodReturnPoint(ret, guardInstructions);
}
}