public override ExecutionContext VisitSelection(Cosmos.SelectionContext context)
{
var evaluation = expressionVisitor.Visit(context.base_si().condition);
if (evaluation.Boolean().Value)
{
foreach (var instructionIntegree in context.base_si().instruction())
{
Visit(instructionIntegree);
}
return(null);
}
else if (context.sinon_si() != null)
{
foreach (var elsif in context.sinon_si())
{
if (expressionVisitor.Visit(elsif.base_si().condition).Boolean().Value)
{
foreach (var instructionIntegree in elsif.base_si().instruction())
{
Visit(instructionIntegree);
}
return(null); //only 1 elsif branch
}
}
}
//The check is redundant with the return in the if... but double security
if (evaluation.Boolean().Value == false && context.sinon() != null)
{
foreach (var instructionIntegree in context.sinon().instruction())
{
Visit(instructionIntegree);
}
}
return(null);
}
/// <summary>
/// Visit a parse tree produced by <see cref="Cosmos.selection"/>.
/// <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 VisitSelection([NotNull] Cosmos.SelectionContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="Cosmos.selection"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitSelection([NotNull] Cosmos.SelectionContext context)
{
}
