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py/objstr: Give correct behaviour when passing a dict to %-formatting.

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This patch fixes two main things:
- dicts can be printed directly using '%s' % dict
- %-formatting should not crash when passed a non-dict to, eg, '%(foo)s'
This commit is contained in:
Damien George 2017-02-03 12:13:44 +11:00
parent 87882e1708
commit 7317e34383
1 changed files with 6 additions and 7 deletions
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13
py/objstr.c
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@ -282,19 +282,14 @@ const byte *find_subbytes(const byte *haystack, mp_uint_t hlen, const byte *need
mp_obj_t mp_obj_str_binary_op(mp_uint_t op, mp_obj_t lhs_in, mp_obj_t rhs_in) {
// check for modulo
if (op == MP_BINARY_OP_MODULO) {
mp_obj_t *args;
mp_uint_t n_args;
mp_obj_t *args = &rhs_in;
mp_uint_t n_args = 1;
mp_obj_t dict = MP_OBJ_NULL;
if (MP_OBJ_IS_TYPE(rhs_in, &mp_type_tuple)) {
// TODO: Support tuple subclasses?
mp_obj_tuple_get(rhs_in, &n_args, &args);
} else if (MP_OBJ_IS_TYPE(rhs_in, &mp_type_dict)) {
args = NULL;
n_args = 0;
dict = rhs_in;
} else {
args = &rhs_in;
n_args = 1;
}
return str_modulo_format(lhs_in, n_args, args, dict);
}
@ -1376,6 +1371,10 @@ STATIC mp_obj_t str_modulo_format(mp_obj_t pattern, mp_uint_t n_args, const mp_o
// Dictionary value lookup
if (*str == '(') {
if (dict == MP_OBJ_NULL) {
mp_raise_TypeError("format requires a dict");
}
arg_i = 1; // we used up the single dict argument
const byte *key = ++str;
while (*str != ')') {
if (str >= top) {