public static InstructionNode UncodifyInstructionFormat(
int number,
Var var)
{
if (number < 0)
{
throw new InvalidOperationException();
}
InstructionNode fakeInstruction;
if (number == 0)
{
fakeInstruction = new UnaryExpressionInstructionNode(
var.ToString(),
-1);
}
else if (number == 1 || number == 2)
{
fakeInstruction = new BinaryExpressionInstructionNode(
var.ToString(),
number == 1 ? "+" : "-");
}
else
{
var codifiedLabel = number - 2;
var label = UncodifyLabel(codifiedLabel);
fakeInstruction = new ConditionalInstructionNode(
var.ToString(),
label.ToString(),
-1);
}
return(fakeInstruction);
}
public void UnaryExpressionInstructionFormat()
{
var instruction = new UnaryExpressionInstructionNode("X", 1);
AssertEqualCodifiedFormat(instruction, 0);
}
