/// <summary>
/// Convert StackValue to boolean typed StackValue. Returns
/// StackValue.Null if not able to do conversion.
/// </summary>
/// <param name="core"></param>
/// <returns></returns>
public StackValue ToBoolean(RuntimeCore runtimeCore)
{
switch (optype)
{
case AddressType.Boolean:
return(this);
case AddressType.Int:
return(BuildBoolean(opdata != 0));
case AddressType.Null:
return(StackValue.Null);
case AddressType.Double:
bool b = !Double.IsNaN(RawDoubleValue) && !RawDoubleValue.Equals(0.0);
return(BuildBoolean(b));
case AddressType.Pointer:
return(StackValue.BuildBoolean(true));
case AddressType.String:
string str = runtimeCore.RuntimeMemory.Heap.ToHeapObject <DSString>(this).Value;
return(string.IsNullOrEmpty(str) ? StackValue.False : StackValue.True);
case AddressType.Char:
char c = Convert.ToChar(opdata);
return((c == 0) ? StackValue.False : StackValue.True);
default:
return(StackValue.Null);
}
}
/// <summary>
/// Convert StackValue to boolean typed StackValue. Returns
/// StackValue.Null if not able to do conversion.
/// </summary>
/// <param name="core"></param>
/// <returns></returns>
public StackValue ToBoolean(Core core)
{
switch (optype)
{
case AddressType.Boolean:
return(this);
case AddressType.Int:
return(BuildBoolean(opdata != 0));
case AddressType.Null:
return(StackValue.Null);
case AddressType.Double:
bool b = !Double.IsNaN(RawDoubleValue) && !RawDoubleValue.Equals(0.0);
return(BuildBoolean(b));
case AddressType.Pointer:
return(StackValue.BuildBoolean(true));
case AddressType.String:
string str = core.Heap.GetString(this);
return(string.IsNullOrEmpty(str) ? StackValue.False : StackValue.True);
case AddressType.Char:
char c = EncodingUtils.ConvertInt64ToCharacter(opdata);
return((c == 0) ? StackValue.False : StackValue.True);
default:
return(StackValue.Null);
}
}
/// <summary>
/// Convert StackValue to boolean typed StackValue. Returns
/// StackValue.Null if not able to do conversion.
/// </summary>
/// <param name="core"></param>
/// <returns></returns>
public StackValue ToBoolean(Core core)
{
switch (optype)
{
case AddressType.Boolean:
return(this);
case AddressType.Int:
return(BuildBoolean(opdata != 0));
case AddressType.Null:
return(StackValue.Null);
case AddressType.Double:
bool b = !Double.IsNaN(RawDoubleValue) && !RawDoubleValue.Equals(0.0);
return(BuildBoolean(b));
case AddressType.Pointer:
return(StackValue.BuildBoolean(true));
case AddressType.String:
int size = ArrayUtils.GetElementSize(this, core);
return((size == 0) ? StackValue.False : StackValue.True);
case AddressType.Char:
char c = EncodingUtils.ConvertInt64ToCharacter(opdata);
return((c == 0) ? StackValue.False : StackValue.True);
default:
return(StackValue.Null);
}
}
private void Init(StackValue svThisPtr, int classIndex, int funcIndex, int pc, int functionBlockDecl, int functionBlockCaller, StackFrameType callerType, StackFrameType type, int depth,
int framePointer, List <StackValue> stack, List <bool> execStates)
{
Validity.Assert((int)StackFrame.AbsoluteIndex.kSize == kStackFrameSize);
Frame = new StackValue[kStackFrameSize];
Frame[(int)AbsoluteIndex.kFramePointer] = StackValue.BuildInt(framePointer);
Frame[(int)AbsoluteIndex.kStackFrameType] = StackValue.BuildFrameType((int)type);
Frame[(int)AbsoluteIndex.kCallerStackFrameType] = StackValue.BuildFrameType((int)callerType);
Frame[(int)AbsoluteIndex.kStackFrameDepth] = StackValue.BuildInt(depth);
Frame[(int)AbsoluteIndex.kFunctionCallerBlock] = StackValue.BuildBlockIndex(functionBlockCaller);
Frame[(int)AbsoluteIndex.kFunctionBlock] = StackValue.BuildBlockIndex(functionBlockDecl);
Frame[(int)AbsoluteIndex.kReturnAddress] = StackValue.BuildInt(pc);
Frame[(int)AbsoluteIndex.kFunction] = StackValue.BuildInt(funcIndex);
Frame[(int)AbsoluteIndex.kClass] = StackValue.BuildInt(classIndex);
Frame[(int)AbsoluteIndex.kThisPtr] = svThisPtr;
Frame[(int)AbsoluteIndex.kRegisterAX] = stack[0];
Frame[(int)AbsoluteIndex.kRegisterBX] = stack[1];
Frame[(int)AbsoluteIndex.kRegisterCX] = stack[2];
Frame[(int)AbsoluteIndex.kRegisterDX] = stack[3];
Frame[(int)AbsoluteIndex.kRegisterEX] = stack[4];
Frame[(int)AbsoluteIndex.kRegisterFX] = stack[5];
Frame[(int)AbsoluteIndex.kRegisterLX] = stack[6];
Frame[(int)AbsoluteIndex.kRegisterRX] = stack[7];
Frame[(int)AbsoluteIndex.kRegisterSX] = stack[8];
Frame[(int)AbsoluteIndex.kRegisterTX] = stack[9];
int execStateSize = 0;
if (null != execStates)
{
execStateSize = execStates.Count;
ExecutionStates = new StackValue[execStateSize];
for (int n = 0; n < execStateSize; ++n)
{
ExecutionStates[n] = StackValue.BuildBoolean(execStates[n]);
}
}
Frame[(int)AbsoluteIndex.kExecutionStates] = StackValue.BuildInt(execStateSize);
Frame[(int)AbsoluteIndex.kLocalVariables] = StackValue.BuildInt(0);
Validity.Assert(kStackFrameSize == Frame.Length);
}
public static StackValue AsBoolean(this StackValue operand, Core core)
{
switch (operand.optype)
{
case AddressType.Boolean:
case AddressType.Int:
return(StackValue.BuildBoolean(operand.opdata != 0));
case AddressType.Null:
return(StackValue.Null); //BuildBoolean(false);
case AddressType.Double:
bool b = !(Double.IsNaN(operand.opdata_d) || operand.opdata_d.Equals(0.0));
return(StackValue.BuildBoolean(b));
case AddressType.Pointer:
return(StackValue.BuildBoolean(true));
case AddressType.String:
if (ArrayUtils.GetElementSize(operand, core) == 0)
{
return(StackValue.BuildBoolean(false));
}
return(StackValue.BuildBoolean(true));
case AddressType.Char:
if (EncodingUtils.ConvertInt64ToCharacter(operand.opdata) == 0)
{
return(StackValue.BuildBoolean(false));
}
return(StackValue.BuildBoolean(true));
default:
return(StackValue.Null);
}
}
