public override SelectionRuleNode VisitSubjectExpression(TmtParser.SubjectExpressionContext context)
{
SelectionRuleNode result = null;
var sourceTarget = context.left?.GetText();
var id = context.right?.Text?.Trim('\'');
if (!string.IsNullOrWhiteSpace(id) && string.CompareOrdinal(id, "ROOT") != 0 &&
Enum.TryParse <Scope>(sourceTarget, true, out var scope))
{
result = GetIdComparisonRuleNode(id, scope);
if (Rule == null)
{
Rule = result;
}
}
return(result);
}
/// <summary>
/// Visit a parse tree produced by the <c>subjectExpression</c>
/// labeled alternative in <see cref="TmtParser.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 VisitSubjectExpression([NotNull] TmtParser.SubjectExpressionContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by the <c>subjectExpression</c>
/// labeled alternative in <see cref="TmtParser.expression"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitSubjectExpression([NotNull] TmtParser.SubjectExpressionContext context)
{
}
