c162dff91b10f187aca3e380332a4dfb1a55e56b
[nit.git] / benchmarks / strings / array_to_s_vars / array_to_s_rope.nit
1 # This file is part of NIT ( http://www.nitlanguage.org ).
2 #
3 # This file is free software, which comes along with NIT. This software is
4 # distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
5 # without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
6 # PARTICULAR PURPOSE. You can modify it is you want, provided this header
7 # is kept unaltered, and a notification of the changes is added.
8 # You are allowed to redistribute it and sell it, alone or is a part of
9 # another product.
10
11 # Implementation of Array::to_s with a Rope exclusively
12 #
13 # To be used as a Mixin at compile-time for benchmarking purposes.
14 module array_to_s_rope
15
16 redef class Array[E]
17
18 redef fun to_s do
19 var i = 1
20 var l = length
21 if l == 0 then return ""
22 var s: String = new RopeString.from(self[0].to_s)
23 var its = _items
24 while i < l do
25 var e = its[i]
26 if e != null then s += e.to_s
27 i += 1
28 end
29 return s
30 end
31 end