public override AstNode VisitMethodCall(StannumParser.MethodCallContext context)
{
var arguments = new List <Expr>();
if (!(Visit(context.Subject) is Expr subject))
{
throw new Exception("Unrecognized expression!");
}
arguments.Add(subject);
if (!(Visit(context.Field) is Identifier field))
{
throw new Exception("Unrecognized identifier!");
}
var callee = new BinaryExpr(subject, ".", field);
for (var i = 0; i < context._Args.Count; i += 1)
{
if (!(Visit(context._Args[i]) is Expr argument))
{
throw new Exception("Unrecognized expression!");
}
arguments.Add(argument);
}
return(new CallExpr(callee, arguments));
}
/// <summary>
/// Visit a parse tree produced by the <c>MethodCall</c>
/// labeled alternative in <see cref="StannumParser.accessOrCall"/>.
/// <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 VisitMethodCall([NotNull] StannumParser.MethodCallContext context)
{
return(VisitChildren(context));
}
