public override Base VisitParameter_list([NotNull] GolangParser.Parameter_listContext context)
{
var ret = new Parameters();
foreach (var child in context.children)
{
if (child is GolangParser.Parameter_declContext)
{
var decl = child.Accept(this);
switch (decl)
{
case Parameters ps:
while (ps.NumChildren() > 0)
{
ret.AddChild(ps.GetChild <Parameter>(0));
}
break;
case Parameter p:
ret.AddChild(p);
break;
}
}
}
return(ret);
}
private Parameters ParseParameters()
{
var t = NextToken();
if (!t.IsDelimiter(Delimiter.ParenthesisOpen))
{
_stream.Previous(); // Not open parenthesis encountered
return(null);
}
var node = new Parameters();
do
{
var parameter = ParseParameter();
node.AddChild(parameter);
} while (NextToken().IsDelimiter(Delimiter.Comma));
_stream.Previous(); // Not comma encountered
t = NextToken();
AssertDelimiter(Delimiter.ParenthesisClose, t);
return(node);
}
public override Base VisitParameter_decl([NotNull] GolangParser.Parameter_declContext context)
{
var type = context.type().Accept(this) as AST.Type;
if (context.EllipsesOperator() != null)
{
type = new RangeType(type);
}
if (context.identifier_list() != null)
{
var ret = new Parameters();
var nodeList = context.identifier_list().Accept(this) as RawNodeList;
foreach (var node in nodeList.Items)
{
ret.AddChild(new Parameter(node.Text, type.CloneType()));
}
return(ret);
}
else
{
return(new Parameter(string.Empty, type));
}
}