public static Instruction Push(object value) {
if (value == null) {
return _null ?? (_null = new PushInstruction(null));
}
if (value is bool) {
if ((bool)value) {
return _true ?? (_true = new PushInstruction(value));
} else {
return _false ?? (_false = new PushInstruction(value));
}
}
if (value is int) {
int i = (int)value;
if (i >= PushIntMinCachedValue && i <= PushIntMaxCachedValue) {
if (_ints == null) {
_ints = new Instruction[PushIntMaxCachedValue - PushIntMinCachedValue + 1];
}
i -= PushIntMinCachedValue;
return _ints[i] ?? (_ints[i] = new PushInstruction(value));
}
}
return new PushInstruction(value);
}
private static CodeInfo DeserializeAssembly(string name, IEnumerable <Instruction> instructions, uint bcv,
StringsListBuilder strings, IDictionary <string, uint> objectIndices)
{
uint size = 0;
var labels = new Dictionary <string, uint>();
foreach (var inst in instructions)
{
if (inst is Label labelInst)
{
if (labelInst.LabelValue is string label)
{
labels[label] = size * sizeof(int);
}
}
else
{
size += InstSize(inst, bcv);
}
}
IList <Tuple <ReferenceSignature, uint> > functionReferences = new List <Tuple <ReferenceSignature, uint> >();
IList <Tuple <ReferenceSignature, uint> > variableReferences = new List <Tuple <ReferenceSignature, uint> >();
var binaryInstructions = new List <AnyInstruction>();
size = 0;
foreach (var inst in instructions)
{
if (inst is Label)
{
continue;
}
var op = new OpCodes {
VersionE = inst.OpCode.VersionE, VersionF = inst.OpCode.VersionF
};
var type = DisasmExt.Kind(op, bcv);
AnyInstruction bininst = new AnyInstruction();
switch (type)
{
case InstructionKind.Set:
var setinst = (Set)inst;
bininst.Set = new SetInstruction
{
DestVar = new Reference(setinst.VariableType, 0),
Instance = GetInstanceType(setinst.InstanceType, setinst.InstanceName, objectIndices),
OpCode = op,
Types = new TypePair(setinst.Type1, setinst.Type2)
};
variableReferences.Add(new Tuple <ReferenceSignature, uint>(new ReferenceSignature
{
Name = setinst.TargetVariable,
InstanceType = setinst.InstanceType,
Instance = setinst.InstanceType == InstanceType.Local ? name : null,
VariableType = setinst.VariableType,
VariableIndex = setinst.VariableIndex
}, size));
break;
case InstructionKind.Push:
var bp = new PushInstruction
{
OpCode = op,
Type = ((Push)inst).Type
};
if (bp.Type == DataType.Variable)
{
var p = (PushVariable)inst;
bp.Value = (short)GetInstanceType(p.InstanceType, p.InstanceName, objectIndices);
bp.ValueRest = new Reference(p.VariableType, 0).val;
variableReferences.Add(new Tuple <ReferenceSignature, uint>(new ReferenceSignature
{
Name = p.VariableName,
InstanceType = p.InstanceType,
Instance = p.InstanceType == InstanceType.Local ? name : null,
VariableType = p.VariableType,
VariableIndex = p.VariableIndex
}, size));
}
else
{
var p = (PushConst)inst;
switch (p.Type)
{
case DataType.Int16:
bp.Value = (short)(long)p.Value;
break;
case DataType.Boolean:
bp.ValueRest = (uint)(long)p.Value;
break;
case DataType.Double:
case DataType.Single:
bp.ValueRest = BitConverter.ToUInt64(BitConverter.GetBytes(Convert.ToDouble(p.Value)), 0);
break;
case DataType.Int32:
case DataType.Int64:
bp.ValueRest = BitConverter.ToUInt64(BitConverter.GetBytes(unchecked ((long)(p.Value))), 0);
break;
case DataType.String:
bp.ValueRest = strings.GetIndex((string)p.Value);
break;
}
}
bininst.Push = bp;
break;
case InstructionKind.Call:
var callinst = (Call)inst;
bininst.Call = new CallInstruction
{
Arguments = (ushort)callinst.Arguments,
Function = new Reference(callinst.FunctionType, 0),
OpCode = op,
ReturnType = callinst.ReturnType
};
functionReferences.Add(new Tuple <ReferenceSignature, uint>(new ReferenceSignature
{
Name = callinst.FunctionName,
InstanceType = InstanceType.StackTopOrGlobal,
VariableType = callinst.FunctionType,
VariableIndex = -1
}, size));
break;
case InstructionKind.Break:
var breakinst = (Break)inst;
bininst.Break = new BreakInstruction
{
OpCode = op,
Signal = (short)breakinst.Signal,
Type = breakinst.Type
};
break;
case InstructionKind.DoubleType:
var doubleinst = (DoubleType)inst;
bininst.DoubleType = new DoubleTypeInstruction
{
OpCode = op,
Types = new TypePair(doubleinst.Type1, doubleinst.Type2)
};
if (inst is Compare cmpinst)
{
bininst.DoubleType.ComparisonType = cmpinst.ComparisonType;
}
break;
case InstructionKind.SingleType:
var singleinst = (SingleType)inst;
bininst.SingleType = new SingleTypeInstruction
{
OpCode = op,
Type = singleinst.Type
};
if (inst is Dup dupinst)
{
bininst.SingleType.DupExtra = dupinst.Extra;
}
break;
case InstructionKind.Goto:
var gotoinst = (Branch)inst;
uint absTarget = 0;
if (gotoinst.Label is long)
{
absTarget = (uint)(long)(gotoinst.Label);
}
else if (gotoinst.Label is string)
{
absTarget = labels[(string)gotoinst.Label];
}
else if (gotoinst.Label == null)
{
bininst.Goto = new BranchInstruction
{
Offset = new Int24(0xF00000),
OpCode = op
};
break;
}
else
{
Console.Error.WriteLine($"Error in {name}: Can't use label {gotoinst.Label}");
break;
}
var relTarget = (int)absTarget - (int)size;
uint offset = unchecked ((uint)relTarget);
if (relTarget < 0)
{
offset &= 0xFFFFFF;
offset += 0x1000000;
}
offset /= 4;
bininst.Goto = new BranchInstruction
{
Offset = new Int24(offset),
OpCode = op
};
break;
default:
Console.Error.WriteLine($"Error in {name}: Unknown instruction type {type}!");
continue;
}
binaryInstructions.Add(bininst);
unsafe
{
size += DisasmExt.Size(&bininst, bcv) * 4;
}
}
return(new CodeInfo
{
Size = (int)size,
InstructionsCopy = binaryInstructions.ToArray(),
functionReferences = functionReferences,
variableReferences = variableReferences
});
}