private static SyntaxNode Index(RParser.IndexContext index, Func <ParserRuleContext, Scope, SyntaxNode> transform, Scope scope)
{
var indexExprs = index.sublist().sub();
if (indexExprs.Length != 1)
{
//td: error
return(null);
}
var expr = transform(index.expr(), scope) as ExpressionSyntax;
var args = transform(index.sublist(), scope) as ArgumentListSyntax;
Debug.Assert(expr != null && args != null);
var indexExpr = args.Arguments[0].Expression;
Debug.Assert(indexExpr != null);
return(indexCall.Get(expr, indexExpr));
}
/// <summary>
/// Exit a parse tree produced by <see cref="RParser.Index"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitIndex([NotNull] RParser.IndexContext context)
{
}
