Add dummy bytes() constructor.

Currently, MicroPython strings are mix between CPython byte and unicode
strings. So, conversion is null so far. This dummy implementation is
intended for compatibility with CPython (so, same code can run on both).

4 files changed, 15 insertions, 0 deletions

diff --git a/py/builtin.c b/py/builtin.c
index f102aa588..13463ada6 100644
--- a/py/builtin.c
+++ b/py/builtin.c
@@ -347,3 +347,15 @@ static mp_obj_t mp_builtin_str(mp_obj_t o_in) {
 }
 
 MP_DEFINE_CONST_FUN_OBJ_1(mp_builtin_str_obj, mp_builtin_str);
+
+// TODO: This should be type, this is just quick CPython compat hack
+static mp_obj_t mp_builtin_bytes(uint n_args, const mp_obj_t *args) {
+    if (!MP_OBJ_IS_QSTR(args[0]) && !MP_OBJ_IS_TYPE(args[0], &str_type)) {
+        assert(0);
+    }
+    // Currently, MicroPython strings are mix between CPython byte and unicode
+    // strings. So, conversion is null so far.
+    return args[0];
+}
+
+MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_builtin_bytes_obj, 1, 3, mp_builtin_bytes);
diff --git a/py/builtin.h b/py/builtin.h
index 050a2161c..4257de5bd 100644
--- a/py/builtin.h
+++ b/py/builtin.h
@@ -5,6 +5,7 @@ MP_DECLARE_CONST_FUN_OBJ(mp_builtin___repl_print___obj);
 MP_DECLARE_CONST_FUN_OBJ(mp_builtin_abs_obj);
 MP_DECLARE_CONST_FUN_OBJ(mp_builtin_all_obj);
 MP_DECLARE_CONST_FUN_OBJ(mp_builtin_any_obj);
+MP_DECLARE_CONST_FUN_OBJ(mp_builtin_bytes_obj); // Temporary hack
 MP_DECLARE_CONST_FUN_OBJ(mp_builtin_callable_obj);
 MP_DECLARE_CONST_FUN_OBJ(mp_builtin_chr_obj);
 MP_DECLARE_CONST_FUN_OBJ(mp_builtin_divmod_obj);
diff --git a/py/mpqstrraw.h b/py/mpqstrraw.h
index 10b1fc0d3..9bc01c585 100644
--- a/py/mpqstrraw.h
+++ b/py/mpqstrraw.h
@@ -40,6 +40,7 @@ Q(any)
 Q(array)
 Q(bool)
 Q(bytearray)
+Q(bytes)
 Q(callable)
 Q(chr)
 Q(complex)
diff --git a/py/runtime.c b/py/runtime.c
index d8fc3ff6e..72347aff8 100644
--- a/py/runtime.c
+++ b/py/runtime.c
@@ -130,6 +130,7 @@ void rt_init(void) {
     mp_map_add_qstr(&map_builtins, MP_QSTR_abs, (mp_obj_t)&mp_builtin_abs_obj);
     mp_map_add_qstr(&map_builtins, MP_QSTR_all, (mp_obj_t)&mp_builtin_all_obj);
     mp_map_add_qstr(&map_builtins, MP_QSTR_any, (mp_obj_t)&mp_builtin_any_obj);
+    mp_map_add_qstr(&map_builtins, MP_QSTR_bytes, (mp_obj_t)&mp_builtin_bytes_obj);
     mp_map_add_qstr(&map_builtins, MP_QSTR_callable, (mp_obj_t)&mp_builtin_callable_obj);
     mp_map_add_qstr(&map_builtins, MP_QSTR_chr, (mp_obj_t)&mp_builtin_chr_obj);
     mp_map_add_qstr(&map_builtins, MP_QSTR_divmod, (mp_obj_t)&mp_builtin_divmod_obj);