private static ListSyntax ParseExplicitBlock(ParserContext context)
{
var token = context.Tokens.Dequeue();
var span = token.Span;
var list = new ListSyntax();
SkipWhitespaceTokens(context);
if (context.Tokens.Peek().Type == TokenType.CurlyClose)
{
context.Tokens.Dequeue();
list.Span = span;
return(list);
}
while (token.Type != TokenType.None)
{
if (token.Type == TokenType.CurlyClose)
{
context.Tokens.Dequeue();
break;
}
list.Add(ParseBlock(context));
token = context.Tokens.Peek();
}
list.Span = span.WithEnd(token.Span.End);
return(list);
}
private static ListSyntax <ArgumentSyntax> ParseArguments(ParserContext context)
{
var token = context.Tokens.Dequeue();
var span = token.Span;
var list = new ListSyntax <ArgumentSyntax>();
SkipWhitespaceTokens(context);
if (context.Tokens.Peek().Type == TokenType.ParenthesesClose)
{
context.Tokens.Dequeue();
list.Span = span;
return(list);
}
while (token.Type != TokenType.None)
{
if (token.Type == TokenType.ParenthesesClose)
{
context.Tokens.Dequeue();
break;
}
else if (token.Type == TokenType.Semicolon)
{
context.Tokens.Dequeue();
}
list.Add(ParseArgument(context));
token = context.Tokens.Peek();
}
for (int i = 0; i < list.Count; i++)
{
list[i].Position = i;
}
list.Span = span.WithEnd(token.Span.End);
return(list);
}
private static ObjectSyntax ParseObject(ParserContext context)
{
var token = context.Tokens.Dequeue();
var span = token.Span;
var obj = new ObjectSyntax();
var list = new ListSyntax <FieldSyntax>();
obj.Fields = list;
SkipWhitespaceTokens(context);
if (context.Tokens.Peek().Type == TokenType.CurlyClose)
{
context.Tokens.Dequeue();
list.Span = span;
return(obj);
}
while (token.Type != TokenType.None)
{
if (token.Type == TokenType.CurlyClose)
{
context.Tokens.Dequeue();
break;
}
var field = ParseField(context);
if (field != null)
{
list.Add(field);
}
token = context.Tokens.Peek();
}
list.Span = span.WithEnd(token.Span.End);
return(obj);
}
private static ListSyntax ParseBlock(ParserContext context, params TokenType[] stop)
{
var token = context.Tokens.Peek();
var span = token !.Span;
var list = new ListSyntax();
bool continueParsing = true;
SyntaxNode?outNode = null;
while (continueParsing && token.Type != TokenType.None)
{
continueParsing = ParseElement(context, stop, out outNode);
if (outNode != null)
{
list.Add(outNode);
}
token = context.Tokens.Peek();
}
token = context.Tokens.Peek();
list.Span = span.WithEnd(token.Span.End);
context.Tokens.SkipWhile(e => e.Type == TokenType.Newline);
return(list);
}