public override StatementNode VisitMatchStatement([NotNull] CoronaParser.MatchStatementContext context)
{
BuildValueAst valueVisitor = new BuildValueAst();
BuildExpressionAst exprVisitor = new BuildExpressionAst();
// Visit each of the different elements to match against
List <ValueNode> elements = new List <ValueNode>();
foreach (var e in context.matchElement())
{
try
{
if (e.member() != null)
{
elements.Add(valueVisitor.Visit(e.member()));
}
else if (e.gridPoint() != null)
{
elements.Add(valueVisitor.Visit(e.gridPoint()));
}
else if (e.expr() != null)
{
elements.Add(exprVisitor.Visit(e.expr()));
}
}
catch (TheLanguageErrorException excep) { throw new TheLanguageErrorException("Match statement value", excep); }
}
// Visit each CaseStatement
List <CaseStatementNode> caseStatements = new List <CaseStatementNode>();
try
{
foreach (CoronaParser.CaseStatementContext c in context.caseStatement())
{
caseStatements.Add((CaseStatementNode)Visit(c));
}
}
catch (TheLanguageErrorException e) { throw new TheLanguageErrorException("Match statement", e); }
return(new MatchStatementNode(elements, caseStatements));
}
/// <summary>
/// Visit a parse tree produced by <see cref="CoronaParser.matchStatement"/>.
/// <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 VisitMatchStatement([NotNull] CoronaParser.MatchStatementContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="CoronaParser.matchStatement"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitMatchStatement([NotNull] CoronaParser.MatchStatementContext context)
{
}
