void WriteOperand(Instruction instruction)
{
var opcode = instruction.opcode;
var operand_type = opcode.OperandType;
if (operand_type == OperandType.InlineNone)
return;
var operand = instruction.operand;
if (operand == null)
throw new ArgumentException ();
switch (operand_type) {
case OperandType.InlineSwitch: {
var targets = (Instruction []) operand;
WriteInt32 (targets.Length);
var diff = instruction.Offset + opcode.Size + (4 * (targets.Length + 1));
for (int i = 0; i < targets.Length; i++)
WriteInt32 (GetTargetOffset (targets [i]) - diff);
break;
}
case OperandType.ShortInlineBrTarget: {
var target = (Instruction) operand;
WriteSByte ((sbyte) (GetTargetOffset (target) - (instruction.Offset + opcode.Size + 1)));
break;
}
case OperandType.InlineBrTarget: {
var target = (Instruction) operand;
WriteInt32 (GetTargetOffset (target) - (instruction.Offset + opcode.Size + 4));
break;
}
case OperandType.ShortInlineVar:
WriteByte ((byte) GetVariableIndex ((VariableDefinition) operand));
break;
case OperandType.ShortInlineArg:
WriteByte ((byte) GetParameterIndex ((ParameterDefinition) operand));
break;
case OperandType.InlineVar:
WriteInt16 ((short) GetVariableIndex ((VariableDefinition) operand));
break;
case OperandType.InlineArg:
WriteInt16 ((short) GetParameterIndex ((ParameterDefinition) operand));
break;
case OperandType.InlineSig:
WriteMetadataToken (GetStandAloneSignature ((CallSite) operand));
break;
case OperandType.ShortInlineI:
if (opcode == OpCodes.Ldc_I4_S)
WriteSByte ((sbyte) operand);
else
WriteByte ((byte) operand);
break;
case OperandType.InlineI:
WriteInt32 ((int) operand);
break;
case OperandType.InlineI8:
WriteInt64 ((long) operand);
break;
case OperandType.ShortInlineR:
WriteSingle ((float) operand);
break;
case OperandType.InlineR:
WriteDouble ((double) operand);
break;
case OperandType.InlineString:
WriteMetadataToken (
new MetadataToken (
TokenType.String,
GetUserStringIndex ((string) operand)));
break;
case OperandType.InlineType:
case OperandType.InlineField:
case OperandType.InlineMethod:
case OperandType.InlineTok:
WriteMetadataToken (metadata.LookupToken ((IMetadataTokenProvider) operand));
break;
default:
throw new ArgumentException ();
}
}