def _nt_location
start_index = index
if node_cache[:location].has_key?(index)
cached = node_cache[:location][index]
if cached
cached = SyntaxNode.new(input, index...(index + 1)) if cached == true
@index = cached.interval.end
end
return cached
end
i0 = index
r1 = _nt_quoted_string
r1.extend(Location0)
if r1
r0 = r1
else
s2, i2 = [], index
loop do
i3 = index
r4 = _nt_token
if r4
r3 = r4
else
if has_terminal?('\G[\x3d]', true, index)
r5 = true
@index += 1
else
r5 = nil
end
if r5
r3 = r5
else
@index = i3
r3 = nil
end
end
if r3
s2 << r3
else
break
end
end
if s2.empty?
@index = i2
r2 = nil
else
r2 = instantiate_node(SyntaxNode,input, i2...index, s2)
end
if r2
r0 = r2
else
@index = i0
r0 = nil
end
end
node_cache[:location][start_index] = r0
r0
end