def _nt_comment_line
start_index = index
if node_cache[:comment_line].has_key?(index)
cached = node_cache[:comment_line][index]
@index = cached.interval.end if cached
return cached
end
i0, s0 = index, []
s1, i1 = [], index
loop do
r2 = _nt_space
if r2
s1 << r2
else
break
end
end
r1 = instantiate_node(SyntaxNode,input, i1...index, s1)
s0 << r1
if r1
if has_terminal?('#', false, index)
r3 = instantiate_node(SyntaxNode,input, index...(index + 1))
@index += 1
else
terminal_parse_failure('#')
r3 = nil
end
s0 << r3
if r3
r4 = _nt_line_to_eol
s0 << r4
end
end
if s0.last
r0 = instantiate_node(SyntaxNode,input, i0...index, s0)
r0.extend(CommentLine0)
else
@index = i0
r0 = nil
end
node_cache[:comment_line][start_index] = r0
r0
end