lib/core: Replaced FFI version of set_char_at by pure Nit

Signed-off-by: Lucas Bajolet <r4pass@hotmail.com>

diff --git a/lib/core/text/flat.nit b/lib/core/text/flat.nit
index 83cae37..67ffacf 100644 (file)
--- a/lib/core/text/flat.nit
+++ b/lib/core/text/flat.nit
@@ -1371,37 +1371,26 @@ redef class NativeString
        #
        # Very unsafe, make sure to have room for this char prior to calling this function.
        private fun set_char_at(pos: Int, c: Char) do
-               if c.code_point < 128 then
-                       self[pos] = c.code_point.to_b
+               var cp = c.code_point
+               if cp < 128 then
+                       self[pos] = cp.to_b
                        return
                end
                var ln = c.u8char_len
-               native_set_char(pos, c, ln)
-       end
-
-       private fun native_set_char(pos: Int, c: Char, ln: Int) `{
-               char* dst = self + pos;
-               switch(ln){
-                       case 1:
-                               dst[0] = c;
-                               break;
-                       case 2:
-                               dst[0] = 0xC0 | ((c & 0x7C0) >> 6);
-                               dst[1] = 0x80 | (c & 0x3F);
-                               break;
-                       case 3:
-                               dst[0] = 0xE0 | ((c & 0xF000) >> 12);
-                               dst[1] = 0x80 | ((c & 0xFC0) >> 6);
-                               dst[2] = 0x80 | (c & 0x3F);
-                               break;
-                       case 4:
-                               dst[0] = 0xF0 | ((c & 0x1C0000) >> 18);
-                               dst[1] = 0x80 | ((c & 0x3F000) >> 12);
-                               dst[2] = 0x80 | ((c & 0xFC0) >> 6);
-                               dst[3] = 0x80 | (c & 0x3F);
-                               break;
-               }
-       `}
+               if ln == 2 then
+                       self[pos] = (0xC0 | ((cp & 0x7C0) >> 6)).to_b
+                       self[pos + 1] = (0x80 | (cp & 0x3F)).to_b
+               else if ln == 3 then
+                       self[pos] = (0xE0 | ((cp & 0xF000) >> 12)).to_b
+                       self[pos + 1] = (0x80 | ((cp & 0xFC0) >> 6)).to_b
+                       self[pos + 2] = (0x80 | (cp & 0x3F)).to_b
+               else if ln == 4 then
+                       self[pos] = (0xF0 | ((cp & 0x1C0000) >> 18)).to_b
+                       self[pos + 1] = (0x80 | ((cp & 0x3F000) >> 12)).to_b
+                       self[pos + 2] = (0x80 | ((cp & 0xFC0) >> 6)).to_b
+                       self[pos + 3] = (0x80 | (cp & 0x3F)).to_b
+               end
+       end
 end
 
 redef class Int