protected override void EmitTernaryOperatorExpression(TernaryOperatorExpression expression, bool isStatement = false)
{
Append("((");
Emit(expression.FirstOperand);
Append(")");
Append(" ? ");
Append("(");
Emit(expression.SecondOperand);
Append(") : (");
Emit(expression.ThirdOperand);
Append("))");
}
public BitsValue Visit(Expression expr)
{
return(expr switch
{
NumberLiteralExpression lit => lit.Value,
BinaryOperatorExpression binOp => Visit(binOp),
ReferenceExpression refExpr => Visit(refExpr),
TernaryOperatorExpression tern => Visit(tern),
UnaryOperatorExpression unary => Visit(unary),
TruncateExpression trunc => Visit(trunc),
SliceExpression slice => Visit(slice),
_ => throw new InterpreterException("Unknown expression", expr.Span.Start),
});
private AphidObject InterpretTernaryOperatorExpression(TernaryOperatorExpression expression)
{
switch (expression.Operator)
{
case AphidTokenType.ConditionalOperator:
return((AphidObject)InterpretExpression(
(bool)((AphidObject)InterpretExpression(expression.FirstOperand)).Value ?
expression.SecondOperand :
expression.ThirdOperand));
default:
throw new InvalidOperationException();
}
}
private void Emit(TernaryOperatorExpression node)
{
switch (node.Operator)
{
case AphidTokenType.ConditionalOperator:
Emit(node.FirstOperand);
AppendUnindented(" ? ");
Emit(node.SecondOperand);
AppendUnindented(" : ");
Emit(node.ThirdOperand);
break;
default:
throw new InvalidOperationException();
}
}
protected override void EmitTernaryOperatorExpression(TernaryOperatorExpression expression, bool isStatement = false)
{
switch (expression.Operator)
{
case AphidTokenType.ConditionalOperator:
Append("((");
Emit(expression.SecondOperand);
Append(") if (");
Emit(expression.FirstOperand);
Append(") else (");
Emit(expression.ThirdOperand);
Append("))");
break;
default:
throw new NotImplementedException();
}
}
private void Visit(TernaryOperatorExpression expr)
{
var labelFalse = IL.DefineLabel("tern_false");
var labelEnd = IL.DefineLabel("tern_end");
Visit(expr.Condition);
LoadNumber();
IL.Brfalse(labelFalse);
Visit(expr.IfTrue);
IL.Br(labelEnd);
IL.MarkLabel(labelFalse);
IL.Nop();
Visit(expr.IfFalse);
IL.MarkLabel(labelEnd);
IL.Nop();
}
private IScriptObject EvaluateExpression(TernaryOperatorExpression expression)
{
var left = expression.Operand1;
var middle = expression.Operand2;
var right = expression.Operand3;
var oper1 = expression.Operator1;
var oper2 = expression.Operator2;
try
{
return(Operators.CalculateTernaryOperators(this, oper1, oper2, left, middle, right));
}
catch (RuntimeException)
{
throw;
}
catch (Exception ex)
{
throw new RuntimeException(expression.LinePragma, ex.Message, ex);
}
}
[DebuggerStepThrough] protected virtual void EmitTernaryOperatorExpression(TernaryOperatorExpression expression, bool isStatement = false)
{
throw new NotImplementedException();
}
