public MathFuncNode VisitBinaryExpression(BinaryExpressionContext context)
{
MathFuncNode arg1 = Visit(context.expression(0));
MathFuncNode arg2 = Visit(context.expression(1));
KnownFuncType funcType;
if (context.Plus() != null)
{
funcType = KnownFuncType.Add;
}
else if (context.Minus() != null)
{
funcType = KnownFuncType.Sub;
var second = new FuncNode(KnownFuncType.Neg, new MathFuncNode[] { arg2 });
var result = new FuncNode(KnownFuncType.Add, new MathFuncNode[] { arg1, second });
return(result);
}
else if (context.Mult() != null)
{
funcType = KnownFuncType.Mult;
}
else if (context.Div() != null)
{
var second = new FuncNode(KnownFuncType.Pow, new MathFuncNode[] { arg2, new ValueNode(-1) });
var result = new FuncNode(KnownFuncType.Mult, new MathFuncNode[] { arg1, second });
return(result);
}
else
{
funcType = KnownFuncType.Pow;
}
return(new FuncNode(funcType, new MathFuncNode[] { arg1, arg2 }));
}
public override Node VisitBinaryExpression(BinaryExpressionContext context)
{
var expression = new ExpressionNode(context.Start, _operatorFactory.CreateBinaryOperator(context.binaryOperator().Start));
expression.AddChild(Visit(context.expression(0)));
expression.AddChild(Visit(context.expression(1)));
return(expression);
}
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 override void ExitBinaryExpression([NotNull] BinaryExpressionContext context)
{
base.ExitBinaryExpression(context);
var leftSideToken = (context.Parent as InstructionContext).Start;
var rightSideToken = context.ID().Symbol;
CheckValidVar(leftSideToken);
CheckValidVar(rightSideToken);
CheckVarsAreEqual(
leftSideToken,
rightSideToken,
"Increment and decrement instructions must have the same var at both sides.");
}
public override Expression VisitBinaryExpression(BinaryExpressionContext context)
{
var binaryOperator = context.binary_operator();
var left = Visit(context.expression(0));
var right = Visit(context.expression(1));
if (binaryOperator == null || binaryOperator.AND() != null)
{
return Expression.And(left, right);
}
if (binaryOperator.OR() != null)
{
return Expression.Or(left, right);
}
else if (binaryOperator.XOR() != null)
{
return Expression.ExclusiveOr(left, right);
}
return Expression.And(left, right);
}
private ExpressionContext expression(int _p)
{
ParserRuleContext _parentctx = Context;
int _parentState = State;
ExpressionContext _localctx = new ExpressionContext(Context, _parentState);
ExpressionContext _prevctx = _localctx;
int _startState = 2;
EnterRecursionRule(_localctx, 2, RULE_expression, _p);
try {
int _alt;
EnterOuterAlt(_localctx, 1);
{
State = 24;
ErrorHandler.Sync(this);
switch (TokenStream.LA(1))
{
case LPAREN:
{
_localctx = new ParenExpressionContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 14; Match(LPAREN);
State = 15; expression(0);
State = 16; Match(RPAREN);
}
break;
case NOT:
{
_localctx = new NotExpressionContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 18; Match(NOT);
State = 19; expression(7);
}
break;
case TRUE:
case FALSE:
{
_localctx = new BoolExpressionContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 20; @bool();
}
break;
case IDENTIFIER:
{
_localctx = new IdentifierExpressionContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 21; Match(IDENTIFIER);
}
break;
case DECIMAL:
{
_localctx = new DecimalExpressionContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 22; Match(DECIMAL);
}
break;
case STRING:
{
_localctx = new StringExpressionContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 23; Match(STRING);
}
break;
default:
throw new NoViableAltException(this);
}
Context.Stop = TokenStream.LT(-1);
State = 36;
ErrorHandler.Sync(this);
_alt = Interpreter.AdaptivePredict(TokenStream, 2, Context);
while (_alt != 2 && _alt != global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER)
{
if (_alt == 1)
{
if (ParseListeners != null)
{
TriggerExitRuleEvent();
}
_prevctx = _localctx;
{
State = 34;
ErrorHandler.Sync(this);
switch (Interpreter.AdaptivePredict(TokenStream, 1, Context))
{
case 1:
{
_localctx = new ComparatorExpressionContext(new ExpressionContext(_parentctx, _parentState));
((ComparatorExpressionContext)_localctx).left = _prevctx;
PushNewRecursionContext(_localctx, _startState, RULE_expression);
State = 26;
if (!(Precpred(Context, 6)))
{
throw new FailedPredicateException(this, "Precpred(Context, 6)");
}
State = 27; ((ComparatorExpressionContext)_localctx).op = comparator();
State = 28; ((ComparatorExpressionContext)_localctx).right = expression(7);
}
break;
case 2:
{
_localctx = new BinaryExpressionContext(new ExpressionContext(_parentctx, _parentState));
((BinaryExpressionContext)_localctx).left = _prevctx;
PushNewRecursionContext(_localctx, _startState, RULE_expression);
State = 30;
if (!(Precpred(Context, 5)))
{
throw new FailedPredicateException(this, "Precpred(Context, 5)");
}
State = 31; ((BinaryExpressionContext)_localctx).op = binary();
State = 32; ((BinaryExpressionContext)_localctx).right = expression(6);
}
break;
}
}
}
State = 38;
ErrorHandler.Sync(this);
_alt = Interpreter.AdaptivePredict(TokenStream, 2, Context);
}
}
}
catch (RecognitionException re) {
_localctx.exception = re;
ErrorHandler.ReportError(this, re);
ErrorHandler.Recover(this, re);
}
finally {
UnrollRecursionContexts(_parentctx);
}
return(_localctx);
}
