private void ReadBytecode(Stream input, FunctionDefinition funcDef)
{
funcDef.Instructions = new List <IInstruction>();
funcDef.InstructionOffsets = new List <int>();
var unencodedByteCodeLength = input.ReadValueEncodedS32();
int read;
for (read = 0; read < unencodedByteCodeLength;)
{
funcDef.InstructionOffsets.Add(read);
var op = input.ReadValueU8();
var opcode = (Script.Opcode)op;
read++;
Script.IInstruction instruction = null;
switch (opcode)
{
case Script.Opcode.OP_Target:
{
instruction = new Target();
break;
}
case Script.Opcode.OP_ShortConst:
{
instruction = new ShortConst();
break;
}
case Script.Opcode.OP_IntConst:
{
instruction = new IntConst();
break;
}
case Script.Opcode.OP_FloatConst:
{
instruction = new FloatConst();
break;
}
case Script.Opcode.OP_StringConst:
{
instruction = new StringConst(this);
break;
}
case Script.Opcode.OP_VirtualFunc:
{
instruction = new VirtualFunc(this);
break;
}
case Script.Opcode.OP_Context:
case Script.Opcode.OP_SwitchLabel:
{
instruction = new U16U16(opcode);
break;
}
case Script.Opcode.OP_Assign:
case Script.Opcode.OP_JumpIfFalse:
case Script.Opcode.OP_Jump:
case Script.Opcode.OP_Skip:
{
instruction = new U16(opcode);
break;
}
case Script.Opcode.OP_LocalVar:
case Script.Opcode.OP_ObjectVar:
case Script.Opcode.OP_ParamVar:
case Script.Opcode.OP_StructMember:
{
instruction = new TypeMember(opcode, this);
break;
}
case Script.Opcode.OP_Switch:
{
instruction = new Switch();
break;
}
case Script.Opcode.OP_Constructor:
{
instruction = new Constructor(this);
break;
}
case Script.Opcode.OP_TestEqual:
case Script.Opcode.OP_EnumToInt:
case Script.Opcode.OP_ArrayPushBack:
case Script.Opcode.OP_ArraySize:
case Script.Opcode.OP_ArrayElement:
case Script.Opcode.OP_New:
case Script.Opcode.OP_ArrayClear:
case Script.Opcode.OP_DynamicCast:
case Script.Opcode.OP_ArrayContainsFast:
case Script.Opcode.OP_ArrayRemoveFast:
case Script.Opcode.OP_TestNotEqual:
case Script.Opcode.OP_ArrayErase:
case Script.Opcode.OP_EnumToString:
case Script.Opcode.OP_ArrayContains:
case Script.Opcode.OP_ArrayResize:
case Script.Opcode.OP_ArrayInsert:
case Script.Opcode.OP_ArrayGrow:
case Script.Opcode.OP_ArrayFindFirstFast:
case Script.Opcode.OP_ArrayLast:
case Script.Opcode.OP_ArrayRemove:
case Script.Opcode.OP_SaveValue:
{
instruction = new TypeRef(opcode, this);
break;
}
case Script.Opcode.OP_NameConst:
{
instruction = new NameConst(Strings);
break;
}
case Script.Opcode.OP_FinalFunc:
{
instruction = new FinalFunc(this);
break;
}
case Script.Opcode.OP_EntryFunc:
case Script.Opcode.OP_SavePoint:
{
instruction = new U16S32(opcode, this);
break;
}
case Script.Opcode.OP_Nop:
case Script.Opcode.OP_ParamEnd:
case Script.Opcode.OP_IntZero:
case Script.Opcode.OP_IntOne:
case Script.Opcode.OP_BoolFalse:
case Script.Opcode.OP_BoolTrue:
case Script.Opcode.OP_Return:
case Script.Opcode.OP_GetServer:
case Script.Opcode.OP_GetCamera:
case Script.Opcode.OP_NameToString:
case Script.Opcode.OP_GetPlayer:
case Script.Opcode.OP_IntToFloat:
case Script.Opcode.OP_This:
case Script.Opcode.OP_Null:
case Script.Opcode.OP_GetGame:
case Script.Opcode.OP_ObjectToBool:
case Script.Opcode.OP_IntToString:
case Script.Opcode.OP_FloatToString:
case Script.Opcode.OP_IntToByte:
case Script.Opcode.OP_ObjectToString:
case Script.Opcode.OP_SwitchDefault:
case Script.Opcode.OP_BoolToString:
case Script.Opcode.OP_GetHud:
case Script.Opcode.OP_FloatToInt:
case Script.Opcode.OP_NameToBool:
case Script.Opcode.OP_Parent:
case Script.Opcode.OP_IntToBool:
case Script.Opcode.OP_ByteToInt:
case Script.Opcode.OP_FloatToBool:
case Script.Opcode.OP_ByteToFloat:
case Script.Opcode.OP_StringToBool:
case Script.Opcode.OP_SavePointEnd:
case Script.Opcode.OP_StringToInt:
case Script.Opcode.OP_GetSound:
{
instruction = new Simple(opcode);
break;
}
default:
{
throw new NotImplementedException("unhandled " + opcode.ToString());
}
}
read += instruction.Deserialize(input);
funcDef.Instructions.Add(instruction);
}
if (read != unencodedByteCodeLength)
{
throw new InvalidOperationException();
}
}