lib/core: Added copy method `to_bytes_with_copy` in Text

[nit.git] / lib / core / bytes.nit

diff --git a/lib/core/bytes.nit b/lib/core/bytes.nit
index 1efda33..1cac7ac 100644 (file)
--- a/lib/core/bytes.nit
+++ b/lib/core/bytes.nit
@@ -328,9 +328,21 @@ redef class FlatText
 end
 
 redef class NativeString
-       # Creates a new `Bytes` object from `self` with `strlen` as length
-       fun to_bytes: Bytes do
-               var len = cstring_length
+       # Creates a new `Bytes` object from `self` with `len` as length
+       #
+       # If `len` is null, strlen will determine the length of the Bytes
+       fun to_bytes(len: nullable Int): Bytes do
+               if len == null then len = cstring_length
                return new Bytes(self, len, len)
        end
+
+       # Creates a new `Bytes` object from a copy of `self` with `len` as length
+       #
+       # If `len` is null, strlen will determine the length of the Bytes
+       fun to_bytes_with_copy(len: nullable Int): Bytes do
+               if len == null then len = cstring_length
+               var nns = new NativeString(len)
+               copy_to(nns, len, 0, 0)
+               return new Bytes(nns, len, len)
+       end
 end