private static void FoldExpression_Binary_BoolBool_Arithmetic(
ref ES_AstExpression expr, SimpleBinaryExprType op,
ES_AstBooleanConstantExpression lhs, ES_AstBooleanConstantExpression rhs
)
{
Debug.Assert(!op.IsComparison() && !op.IsBitShift());
bool finalValue;
switch (op)
{
// Bit ops
case SimpleBinaryExprType.BitAnd:
finalValue = lhs.Value & rhs.Value;
break;
case SimpleBinaryExprType.BitOr:
finalValue = lhs.Value | rhs.Value;
break;
case SimpleBinaryExprType.BitXor:
finalValue = lhs.Value ^ rhs.Value;
break;
default:
return;
}
expr = new ES_AstBooleanConstantExpression(finalValue, expr);
}
private static void FoldExpression_Binary_BoolBool_Comp(
ref ES_AstExpression expr, SimpleBinaryExprType op,
ES_AstBooleanConstantExpression lhs, ES_AstBooleanConstantExpression rhs
)
{
Debug.Assert(op.IsComparison());
bool finalValue;
switch (op)
{
case SimpleBinaryExprType.Equals:
finalValue = lhs.Value == rhs.Value;
break;
case SimpleBinaryExprType.NotEquals:
finalValue = lhs.Value != rhs.Value;
break;
default:
return;
}
expr = new ES_AstBooleanConstantExpression(finalValue, expr);
}