public override Node VisitExpression([NotNull] FormulaGrammerParser.ExpressionContext context)
{
int idxMultiplyExpression = 0;
int idxOp = 1;
var multiplyExpression = context.multiplyingExpression(idxMultiplyExpression++);
var node = this.VisitMultiplyingExpression(multiplyExpression);
while ((multiplyExpression = context.multiplyingExpression(idxMultiplyExpression++)) != null)
{
var op = BinaryOperator.BySymbol(context.GetChild(idxOp).GetText());
var right = this.VisitMultiplyingExpression(multiplyExpression);
node = new BinaryOperatorNode(op, node, right);
idxOp += 2;
}
return(node);
}
/// <summary>
/// Visit a parse tree produced by <see cref="FormulaGrammerParser.expression"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitExpression([NotNull] FormulaGrammerParser.ExpressionContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="FormulaGrammerParser.expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitExpression([NotNull] FormulaGrammerParser.ExpressionContext context)
{
}
