public OperandContext operand()
{
OperandContext _localctx = new OperandContext(Context, State);
EnterRule(_localctx, 6, RULE_operand);
int _la;
try {
EnterOuterAlt(_localctx, 1);
{
State = 32;
_la = TokenStream.LA(1);
if (!((((_la) & ~0x3f) == 0 && ((1L << _la) & ((1L << VARIABLE) | (1L << NUMBER) | (1L << STRING))) != 0)))
{
ErrorHandler.RecoverInline(this);
}
else
{
ErrorHandler.ReportMatch(this);
Consume();
}
}
}
catch (RecognitionException re) {
_localctx.exception = re;
ErrorHandler.ReportError(this, re);
ErrorHandler.Recover(this, re);
}
finally {
ExitRule();
}
return(_localctx);
}
private bool operand_sempred(OperandContext _localctx, int predIndex)
{
switch (predIndex)
{
case 0: return(Precpred(Context, 1));
}
return(true);
}
public OperandContext operand()
{
OperandContext _localctx = new OperandContext(Context, State);
EnterRule(_localctx, 2, RULE_operand);
int _la;
try {
State = 22;
ErrorHandler.Sync(this);
switch (TokenStream.LA(1))
{
case DIGIT:
EnterOuterAlt(_localctx, 1);
{
State = 11; Match(DIGIT);
}
break;
case LPAREN:
EnterOuterAlt(_localctx, 2);
{
State = 12; Match(LPAREN);
State = 13; operand();
State = 16;
ErrorHandler.Sync(this);
_la = TokenStream.LA(1);
do
{
{
{
State = 14; Match(OPERATOR);
State = 15; operand();
}
}
State = 18;
ErrorHandler.Sync(this);
_la = TokenStream.LA(1);
} while (_la == OPERATOR);
State = 20; Match(RPAREN);
}
break;
default:
throw new NoViableAltException(this);
}
}
catch (RecognitionException re) {
_localctx.exception = re;
ErrorHandler.ReportError(this, re);
ErrorHandler.Recover(this, re);
}
finally {
ExitRule();
}
return(_localctx);
}
public override bool Consume(OperandContext ctx)
{
if (Operator == ArithmeticOperators.Define)
{
ctx.Variables[((VariableNode)Left).VariableName] = Right.Evaluate(ctx);
return true;
}
return false;
}
public abstract double Evaluate(OperandContext ctx);
public virtual bool Consume(OperandContext ctx)
{
return false;
}
public override double Evaluate(OperandContext ctx)
{
if (Left == null || (Right == null && Precedence != Precedence.Unary))
throw new Exception("Trying to evaluate operator withouth any operands");
return Algebra.ArithmeticEvaluators[Operator](Left.Evaluate(ctx), Right.Evaluate(ctx));
}
private OperandContext operand(int _p)
{
ParserRuleContext _parentctx = Context;
int _parentState = State;
OperandContext _localctx = new OperandContext(Context, _parentState);
OperandContext _prevctx = _localctx;
int _startState = 8;
EnterRecursionRule(_localctx, 8, RULE_operand, _p);
try {
int _alt;
EnterOuterAlt(_localctx, 1);
{
State = 38;
ErrorHandler.Sync(this);
switch (TokenStream.LA(1))
{
case IDENTIFIER:
{
_localctx = new Expr_identContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 36; Match(IDENTIFIER);
}
break;
case UINT:
{
_localctx = new Expr_uintContext(_localctx);
Context = _localctx;
_prevctx = _localctx;
State = 37; Match(UINT);
}
break;
default:
throw new NoViableAltException(this);
}
Context.Stop = TokenStream.LT(-1);
State = 45;
ErrorHandler.Sync(this);
_alt = Interpreter.AdaptivePredict(TokenStream, 5, Context);
while (_alt != 2 && _alt != global::Antlr4.Runtime.Atn.ATN.INVALID_ALT_NUMBER)
{
if (_alt == 1)
{
if (ParseListeners != null)
{
TriggerExitRuleEvent();
}
_prevctx = _localctx;
{
{
_localctx = new Expr_indexedContext(new OperandContext(_parentctx, _parentState));
((Expr_indexedContext)_localctx).baseOpe = _prevctx;
PushNewRecursionContext(_localctx, _startState, RULE_operand);
State = 40;
if (!(Precpred(Context, 1)))
{
throw new FailedPredicateException(this, "Precpred(Context, 1)");
}
State = 41; Match(COLON);
State = 42; ((Expr_indexedContext)_localctx).indexOpe = operand(2);
}
}
}
State = 47;
ErrorHandler.Sync(this);
_alt = Interpreter.AdaptivePredict(TokenStream, 5, Context);
}
}
}
catch (RecognitionException re) {
_localctx.exception = re;
ErrorHandler.ReportError(this, re);
ErrorHandler.Recover(this, re);
}
finally {
UnrollRecursionContexts(_parentctx);
}
return(_localctx);
}
public Expr_indexedContext(OperandContext context)
{
CopyFrom(context);
}
public Expr_identContext(OperandContext context)
{
CopyFrom(context);
}
public virtual void CopyFrom(OperandContext context)
{
base.CopyFrom(context);
}
public override double Evaluate(OperandContext ctx)
{
if (string.IsNullOrEmpty(VariableName))
throw new UndefinedVariableException("Attempt to reference unnamed variable");
if (!ctx.Variables.ContainsKey(VariableName))
throw new UndefinedVariableException("Undefined variable '" + VariableName + "' referenced");
return ctx.Variables[VariableName];
}
public override double Evaluate(OperandContext ctx)
{
return Value;
}
