public override Node VisitUnaryExpression(UnaryExpressionContext context)
{
var expression = new ExpressionNode(context.Start, _operatorFactory.CreateUnaryOperator(context.unaryOperator().Start));
expression.AddChild(Visit(context.expression()));
return(expression);
}
public override void ExitUnaryExpression([NotNull] UnaryExpressionContext context)
{
base.ExitUnaryExpression(context);
var leftSideToken = (context.Parent as InstructionContext).Start;
var rightSideToken = context.ID().Symbol;
CheckValidVar(leftSideToken);
CheckValidVar(rightSideToken);
CheckVarsAreEqual(leftSideToken, rightSideToken, "Skip instruction must have the same var at both sides.");
}
public ExpressionContext expression()
{
ExpressionContext _localctx = new ExpressionContext(Context, State);
EnterRule(_localctx, 16, RULE_expression);
int _la;
try {
State = 76;
ErrorHandler.Sync(this);
switch (Interpreter.AdaptivePredict(TokenStream, 6, Context))
{
case 1:
_localctx = new BinaryExpressionContext(_localctx);
EnterOuterAlt(_localctx, 1);
{
State = 72; ((BinaryExpressionContext)_localctx).var = Match(ID);
State = 73;
((BinaryExpressionContext)_localctx).@operator = TokenStream.LT(1);
_la = TokenStream.LA(1);
if (!(_la == T__9 || _la == T__10))
{
((BinaryExpressionContext)_localctx).@operator = ErrorHandler.RecoverInline(this);
}
else
{
ErrorHandler.ReportMatch(this);
Consume();
}
State = 74; Match(T__11);
}
break;
case 2:
_localctx = new UnaryExpressionContext(_localctx);
EnterOuterAlt(_localctx, 2);
{
State = 75; ((UnaryExpressionContext)_localctx).var = Match(ID);
}
break;
}
}
catch (RecognitionException re) {
_localctx.exception = re;
ErrorHandler.ReportError(this, re);
ErrorHandler.Recover(this, re);
}
finally {
ExitRule();
}
return(_localctx);
}
public MathFuncNode VisitUnaryExpression(UnaryExpressionContext context)
{
var result = Visit(context.expression());
if (context.Minus() != null)
{
if (result is ValueNode valueNode)
{
result = new ValueNode(-valueNode.Value);
}
else
{
result = new FuncNode(KnownFuncType.Neg, result);
}
}
return(result);
}
public override Symbol VisitUnaryExpression([NotNull] UnaryExpressionContext context)
{
var identifier = context.IDENTIFIER().GetText();
var value = callStack.ResolveVariable(identifier).AsInt;
var unaryOperator = context.unaryOperator().GetText();
seleniumLogger.Log($"Applying unary operator {unaryOperator} to {identifier}", SeleniumScriptLogLevel.InterpreterDetails);
switch (unaryOperator)
{
case "++": callStack.SetVariable(identifier, (value + 1).ToString()); break;
case "--": callStack.SetVariable(identifier, (value - 1).ToString()); break;
}
return(new Symbol(string.Empty, ReturnType.Int, callStack.ResolveVariable(identifier).AsInt));
}
public UnaryExpressionContext unaryExpression() {
UnaryExpressionContext _localctx = new UnaryExpressionContext(Context, State);
EnterRule(_localctx, 18, RULE_unaryExpression);
try {
State = 162;
switch (TokenStream.La(1)) {
case LeftParen:
case Identifier:
case Constant:
case StringLiteral:
EnterOuterAlt(_localctx, 1);
{
State = 154; postfixExpression(0);
}
break;
case PlusPlus:
EnterOuterAlt(_localctx, 2);
{
State = 155; Match(PlusPlus);
State = 156; unaryExpression();
}
break;
case MinusMinus:
EnterOuterAlt(_localctx, 3);
{
State = 157; Match(MinusMinus);
State = 158; unaryExpression();
}
break;
case Plus:
case Minus:
case Star:
case And:
case Not:
case Tilde:
EnterOuterAlt(_localctx, 4);
{
State = 159; unaryOperator();
State = 160; castExpression();
}
break;
default:
throw new NoViableAltException(this);
}
}
catch (RecognitionException re) {
_localctx.exception = re;
ErrorHandler.ReportError(this, re);
ErrorHandler.Recover(this, re);
}
finally {
ExitRule();
}
return _localctx;
}
