A recent refactor left cpy without a NUL terminator, simplify the code
instead of patching over it.
Instead of plain memcpy, it'd be better to employ harder to misuse string
functions made for this purpose like xstrlcpy(), but path_tail() takes
char_u arguments and returns them, leading to a lot of ugly casting.
Fixes#6431.
Depending on the type of argument for input()/inputdialog()'s {text}
argument, defstr may point to buf. Therefore it needs to be in scope
for the lifetime of defstr.
Also, use a different buffer for the handling of the 3rd argument to
input()/inputdialog(). Although the buffer defstr points to is used
immediately, it avoids potential mishaps if the code changes.
Looks like dict_notifications_spec test used to depend on some state which
should not be preserved. Changed all `setup()` calls to `before_each()` and
added necessary state in addition to changes required to test empty keys.
Note: unit tests for tv_dict_watcher* are still needed.
Additional modifications:
- More `const` qualifiers in tested functions.
- `tv_list_find_str()` second argument is more in-line with other
`tv_list_find*()` functions.
Also found some bugs:
1. var_item_copy() always fails to copy v:_null_list and v:_null_dict. Fixing
this should mean fixing `deepcopy(v:_null_list)` which should’ve been, but
was not listed in #4615. This also fixes `deepcopy(v:_null_dict)`.
2. var_item_copy() crashes when trying to copy NULL string with `conv != NULL`.
3. `conv` argument is ignored when copying list unless `deep` is true, but it
was not reflected in documentation.
4. `tv_dict_item_alloc_len()` allocated more memory then needed.
5. typvalt2lua was not able to handle self-referencing containers.
Should fix test failures on QB:
20:00:51,837 INFO - not ok 420 - sort() sorts “wrong” values between -0.0001 and 0.0001, preserving order
20:00:51,837 INFO - # test/functional/eval/sort_spec.lua @ 21
20:00:51,837 INFO - # Failure message: test/functional/eval/sort_spec.lua:39: Expected objects to be the same.
20:00:51,837 INFO - # Passed in:
20:00:51,837 INFO - # (string) '[-1.0e-4, v:true, v:false, v:null, function('tr'), {'a': 42}, 'check', [], 1.0e-4]'
20:00:51,837 INFO - # Expected:
20:00:51,837 INFO - # (string) '[-1.0e-4, function('tr'), v:true, v:false, v:null, [], {'a': 42}, 'check', 1.0e-4]'
20:00:51,837 INFO - # stack traceback:
20:00:51,837 INFO - # test/functional/eval/sort_spec.lua:39: in function <test/functional/eval/sort_spec.lua:22>
20:00:51,837 INFO - #
Additionally
- Rename former tv_get_float to tv_get_float_chk due to name conflict (former
get_tv_float is better suited for being tv_get_float).
- Add E907 error to get_tv_float() and test that it is being raised when
appropriate.
Assuming `inline` is there for a reason, so it is kept and function was moved to
typval.h and not to typval.c which does not have problems with #including
message.h.
Reasoning; currently INTERNAL_CALL is mostly used to determine whether it is
needed to deal with NL-used-as-NUL problem. This code is useful for nvim_… API
calls done from VimL, but not for API calls done from lua, yet lua needs to
supply something as channel_id.
