/// <summary>
/// Reads a non-plugged method.
/// </summary>
/// <param name="aMethodInfo">The method to read.</param>
/// <returns>The new IL block for the method.</returns>
public static ILBlock ReadNonPlugged(Types.MethodInfo aMethodInfo)
{
ILBlock result = new ILBlock()
{
TheMethodInfo = aMethodInfo
};
MethodBody methodBody = aMethodInfo.MethodBody;
//Method body for something like [DelegateType].Invoke() is null.
// So just return an empty method if that is this case.
if (methodBody != null)
{
foreach (LocalVariableInfo aLocal in methodBody.LocalVariables)
{
aMethodInfo.LocalInfos.Add(new Types.VariableInfo()
{
UnderlyingType = aLocal.LocalType,
Position = aLocal.LocalIndex
});
}
byte[] ILBytes = methodBody.GetILAsByteArray();
int ILBytesPos = 0;
while (ILBytesPos < ILBytes.Length)
{
OpCode currOpCode;
ushort currOpCodeID = 0;
int currOpBytesSize = 0;
if (ILBytes[ILBytesPos] == 0xFE)
{
currOpCodeID = (ushort)(0xFE00 + (short)ILBytes[ILBytesPos + 1]);
currOpBytesSize += 2;
}
else
{
currOpCodeID = (ushort)ILBytes[ILBytesPos];
currOpBytesSize++;
}
currOpCode = AllOpCodes[currOpCodeID];
int operandSize = 0;
switch (currOpCode.OperandType)
{
#region Operands
case OperandType.InlineBrTarget:
operandSize = 4;
break;
case OperandType.InlineField:
operandSize = 4;
break;
case OperandType.InlineI:
operandSize = 4;
break;
case OperandType.InlineI8:
operandSize = 8;
break;
case OperandType.InlineMethod:
operandSize = 4;
break;
case OperandType.InlineNone:
//No operands = no op size
break;
case OperandType.InlineR:
operandSize = 8;
break;
case OperandType.InlineSig:
operandSize = 4;
break;
case OperandType.InlineString:
operandSize = 4;
break;
case OperandType.InlineSwitch:
{
uint count = Utilities.ReadUInt32(ILBytes, ILBytesPos + currOpBytesSize);
currOpBytesSize += 4;
operandSize = (int)(count * 4);
}
break;
case OperandType.InlineTok:
operandSize = 4;
break;
case OperandType.InlineType:
operandSize = 4;
break;
case OperandType.InlineVar:
operandSize = 2;
break;
case OperandType.ShortInlineBrTarget:
operandSize = 1;
break;
case OperandType.ShortInlineI:
operandSize = 1;
break;
case OperandType.ShortInlineR:
operandSize = 4;
break;
case OperandType.ShortInlineVar:
operandSize = 1;
break;
default:
throw new Exception("Unrecognised operand type!");
#endregion
}
MethodBase methodToCall = null;
byte[] valueBytes = new byte[operandSize];
if (operandSize > 0)
{
Array.Copy(ILBytes, ILBytesPos + currOpBytesSize, valueBytes, 0, operandSize);
if (currOpCode.Equals(OpCodes.Call) ||
currOpCode.Equals(OpCodes.Calli) ||
currOpCode.Equals(OpCodes.Callvirt) ||
currOpCode.Equals(OpCodes.Ldftn) ||
currOpCode.Equals(OpCodes.Newobj))
{
int MethodMetadataToken = Utilities.ReadInt32(valueBytes, 0);
methodToCall = aMethodInfo.UnderlyingInfo.Module.ResolveMethod(MethodMetadataToken);
}
}
result.ILOps.Add(new ILOp()
{
opCode = currOpCode,
Offset = ILBytesPos,
BytesSize = currOpBytesSize + operandSize,
ValueBytes = valueBytes,
MethodToCall = methodToCall
});
ILBytesPos += currOpBytesSize + operandSize;
}
foreach (ExceptionHandlingClause aClause in methodBody.ExceptionHandlingClauses)
{
ExceptionHandledBlock exBlock = result.GetExactExceptionHandledBlock(aClause.TryOffset);
if (exBlock == null)
{
exBlock = new ExceptionHandledBlock();
exBlock.Offset = aClause.TryOffset;
exBlock.Length = aClause.TryLength;
result.ExceptionHandledBlocks.Add(exBlock);
}
switch (aClause.Flags)
{
case ExceptionHandlingClauseOptions.Fault:
case ExceptionHandlingClauseOptions.Clause:
{
CatchBlock catchBlock = new CatchBlock()
{
Offset = aClause.HandlerOffset,
Length = aClause.HandlerLength,
//Though not used, we may as well set it anyway
FilterType = aClause.CatchType
};
exBlock.CatchBlocks.Add(catchBlock);
}
break;
case ExceptionHandlingClauseOptions.Finally:
{
FinallyBlock finallyBlock = new FinallyBlock()
{
Offset = aClause.HandlerOffset,
Length = aClause.HandlerLength
};
exBlock.FinallyBlocks.Add(finallyBlock);
}
break;
default:
Logger.LogError("IL0010", "", 0,
"Exception handling clause not supported! Type: " + aClause.Flags.ToString());
break;
}
}
}
return(result);
}
/// <summary>
/// Reads a non-plugged method.
/// </summary>
/// <param name="aMethodInfo">The method to read.</param>
/// <returns>The new IL block for the method.</returns>
public static ILBlock ReadNonPlugged(Types.MethodInfo aMethodInfo)
{
ILBlock result = new ILBlock()
{
TheMethodInfo = aMethodInfo
};
MethodBody methodBody = aMethodInfo.MethodBody;
//Method body for something like [DelegateType].Invoke() is null.
// So just return an empty method if that is this case.
if (methodBody != null)
{
foreach (LocalVariableInfo aLocal in methodBody.LocalVariables)
{
aMethodInfo.LocalInfos.Add(new Types.VariableInfo()
{
UnderlyingType = aLocal.LocalType,
Position = aLocal.LocalIndex
});
}
byte[] ILBytes = methodBody.GetILAsByteArray();
int ILBytesPos = 0;
while (ILBytesPos < ILBytes.Length)
{
OpCode currOpCode;
ushort currOpCodeID = 0;
int currOpBytesSize = 0;
if (ILBytes[ILBytesPos] == 0xFE)
{
currOpCodeID = (ushort)(0xFE00 + (short)ILBytes[ILBytesPos + 1]);
currOpBytesSize += 2;
}
else
{
currOpCodeID = (ushort)ILBytes[ILBytesPos];
currOpBytesSize++;
}
currOpCode = AllOpCodes[currOpCodeID];
int operandSize = 0;
switch (currOpCode.OperandType)
{
#region Operands
case OperandType.InlineBrTarget:
operandSize = 4;
break;
case OperandType.InlineField:
operandSize = 4;
break;
case OperandType.InlineI:
operandSize = 4;
break;
case OperandType.InlineI8:
operandSize = 8;
break;
case OperandType.InlineMethod:
operandSize = 4;
break;
case OperandType.InlineNone:
//No operands = no op size
break;
case OperandType.InlineR:
operandSize = 8;
break;
case OperandType.InlineSig:
operandSize = 4;
break;
case OperandType.InlineString:
operandSize = 4;
break;
case OperandType.InlineSwitch:
{
uint count = Utilities.ReadUInt32(ILBytes, ILBytesPos + currOpBytesSize);
currOpBytesSize += 4;
operandSize = (int)(count * 4);
}
break;
case OperandType.InlineTok:
operandSize = 4;
break;
case OperandType.InlineType:
operandSize = 4;
break;
case OperandType.InlineVar:
operandSize = 2;
break;
case OperandType.ShortInlineBrTarget:
operandSize = 1;
break;
case OperandType.ShortInlineI:
operandSize = 1;
break;
case OperandType.ShortInlineR:
operandSize = 4;
break;
case OperandType.ShortInlineVar:
operandSize = 1;
break;
default:
throw new Exception("Unrecognised operand type!");
#endregion
}
MethodBase methodToCall = null;
byte[] valueBytes = new byte[operandSize];
if (operandSize > 0)
{
Array.Copy(ILBytes, ILBytesPos + currOpBytesSize, valueBytes, 0, operandSize);
if (currOpCode.Equals(OpCodes.Call) ||
currOpCode.Equals(OpCodes.Calli) ||
currOpCode.Equals(OpCodes.Callvirt) ||
currOpCode.Equals(OpCodes.Ldftn) ||
currOpCode.Equals(OpCodes.Newobj))
{
int MethodMetadataToken = Utilities.ReadInt32(valueBytes, 0);
methodToCall = aMethodInfo.UnderlyingInfo.Module.ResolveMethod(MethodMetadataToken);
}
}
result.ILOps.Add(new ILOp()
{
opCode = currOpCode,
Offset = ILBytesPos,
BytesSize = currOpBytesSize + operandSize,
ValueBytes = valueBytes,
MethodToCall = methodToCall
});
ILBytesPos += currOpBytesSize + operandSize;
}
foreach (ExceptionHandlingClause aClause in methodBody.ExceptionHandlingClauses)
{
ExceptionHandledBlock exBlock = result.GetExactExceptionHandledBlock(aClause.TryOffset);
if (exBlock == null)
{
exBlock = new ExceptionHandledBlock();
exBlock.Offset = aClause.TryOffset;
exBlock.Length = aClause.TryLength;
result.ExceptionHandledBlocks.Add(exBlock);
}
switch (aClause.Flags)
{
case ExceptionHandlingClauseOptions.Fault:
case ExceptionHandlingClauseOptions.Clause:
{
CatchBlock catchBlock = new CatchBlock()
{
Offset = aClause.HandlerOffset,
Length = aClause.HandlerLength,
//Though not used, we may as well set it anyway
FilterType = aClause.CatchType
};
exBlock.CatchBlocks.Add(catchBlock);
}
break;
case ExceptionHandlingClauseOptions.Finally:
{
FinallyBlock finallyBlock = new FinallyBlock()
{
Offset = aClause.HandlerOffset,
Length = aClause.HandlerLength
};
exBlock.FinallyBlocks.Add(finallyBlock);
}
break;
default:
Logger.LogError("IL0010", "", 0,
"Exception handling clause not supported! Type: " + aClause.Flags.ToString());
break;
}
}
}
return result;
}
