public override Value VisitUnaryOpExpression([NotNull] UnaryOpExpressionContext context)
{
var opKind = context.GetOperatorInfo(ParserStack.Parser);
if (opKind == OperatorKind.None)
{
throw new ArgumentException($"invalid unary operator {context.Op}", nameof(context));
}
string calleeName = $"$unary{context.Op}";
var function = GetFunction(calleeName);
if (function == null)
{
throw new ArgumentException($"Unknown function reference {calleeName}", nameof(context));
}
var arg = context.Rhs.Accept(this);
return(InstructionBuilder.Call(function, arg).RegisterName("calltmp"));
}
public override IAstNode VisitUnaryOpExpression([NotNull] UnaryOpExpressionContext context)
{
// verify the operator was previously defined
var opKind = RuntimeState.GetUnaryOperatorInfo(context.Op).Kind;
if (opKind == OperatorKind.None)
{
throw new CodeGeneratorException($"invalid unary operator {context.Op}");
}
string calleeName = CreateUnaryFunctionName(context.OpToken);
var function = FindCallTarget(calleeName);
if (function == null)
{
throw new CodeGeneratorException($"Unknown function reference {calleeName}");
}
var arg = ( IExpression )context.Rhs.Accept(this);
return(new FunctionCallExpression(context.GetSourceSpan( ), function, arg));
}
public override void EnterUnaryOpExpression(UnaryOpExpressionContext context)
{
ActiveNode.Properties.Add("Op", context.Op);
}