public virtual void Emit(OpCode opcode, Label label)
{
label.GetLabelValue();
this.EnsureCapacity(7);
this.InternalEmit(opcode);
if (OpCodes.TakesSingleByteArgument(opcode))
{
this.AddFixup(label, this.m_length, 1);
this.m_length++;
}
else
{
this.AddFixup(label, this.m_length, 4);
this.m_length += 4;
}
}
public virtual void Emit(OpCode opcode, LocalBuilder local)
{
if (local == null)
{
throw new ArgumentNullException("local");
}
int localIndex = local.GetLocalIndex();
if (local.GetMethodBuilder() != this.m_methodBuilder)
{
throw new ArgumentException(Environment.GetResourceString("Argument_UnmatchedMethodForLocal"), "local");
}
if (opcode.Equals(OpCodes.Ldloc))
{
switch (localIndex)
{
case 0:
opcode = OpCodes.Ldloc_0;
goto Label_0123;
case 1:
opcode = OpCodes.Ldloc_1;
goto Label_0123;
case 2:
opcode = OpCodes.Ldloc_2;
goto Label_0123;
case 3:
opcode = OpCodes.Ldloc_3;
goto Label_0123;
}
if (localIndex <= 0xff)
{
opcode = OpCodes.Ldloc_S;
}
}
else if (opcode.Equals(OpCodes.Stloc))
{
switch (localIndex)
{
case 0:
opcode = OpCodes.Stloc_0;
goto Label_0123;
case 1:
opcode = OpCodes.Stloc_1;
goto Label_0123;
case 2:
opcode = OpCodes.Stloc_2;
goto Label_0123;
case 3:
opcode = OpCodes.Stloc_3;
goto Label_0123;
}
if (localIndex <= 0xff)
{
opcode = OpCodes.Stloc_S;
}
}
else if (opcode.Equals(OpCodes.Ldloca) && (localIndex <= 0xff))
{
opcode = OpCodes.Ldloca_S;
}
Label_0123:
this.EnsureCapacity(7);
this.InternalEmit(opcode);
if (opcode.OperandType != OperandType.InlineNone)
{
if (!OpCodes.TakesSingleByteArgument(opcode))
{
this.m_ILStream[this.m_length++] = (byte)localIndex;
this.m_ILStream[this.m_length++] = (byte)(localIndex >> 8);
}
else
{
if (localIndex > 0xff)
{
throw new InvalidOperationException(Environment.GetResourceString("InvalidOperation_BadInstructionOrIndexOutOfBound"));
}
this.m_ILStream[this.m_length++] = (byte)localIndex;
}
}
}