public override Expression VisitIdAtom([NotNull] ExpressionAntlrParser.IdAtomContext context)
{
Expression result;
var symbol = context.GetText();
var normalized = symbol.ToLower();
if (normalized == "false")
{
result = Expression.ConstantExpression(false);
}
else if (normalized == "true")
{
result = Expression.ConstantExpression(true);
}
else if (normalized == "null")
{
result = Expression.ConstantExpression(null);
}
else
{
result = MakeExpression(ExpressionType.Accessor, Expression.ConstantExpression(symbol));
}
return(result);
}
/// <summary>
/// Exit a parse tree produced by the <c>idAtom</c>
/// labeled alternative in <see cref="ExpressionAntlrParser.primaryExpression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitIdAtom([NotNull] ExpressionAntlrParser.IdAtomContext context)
{
}
/// <summary>
/// Visit a parse tree produced by the <c>idAtom</c>
/// labeled alternative in <see cref="ExpressionAntlrParser.primaryExpression"/>.
/// <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 VisitIdAtom([NotNull] ExpressionAntlrParser.IdAtomContext context)
{
return(VisitChildren(context));
}
