Reasonings:
1. It is not used for anything, but scope dictionaries currenly. So there is no
need to generalize and split it into dict_set_var (which will contain some
scope-dictionary-specific checks) and dict_set_value (which will work for any
dictionary).
2. Check for key size is no longer valid for non-scope dictionaries: you *can*
use empty keys there. In scope dictionaries also, but you actually are not
supposed to store there anything, but variables.
Note that actually one may still do
let b:[''] = 1
and “bypass” check for variable name. It won’t change what `echo b:` will show,
but it may affect code which iterates over scope dictionary keys and sets them
to something (if there is such code).
- They are no longer responble for using gettext.
- They now receive string length and use %.* format specifier in messages.
- And one less global: one of the error messages is never repeated.
Problem: A funccal is garbage collected while it can still be used.
Solution: Set copyID in all referenced functions. Do not list lambda
functions with ":function".
bc7ce675b2
Problem: Leaking memory when redefining a function.
Solution: Don't increment the function reference count when it's found by
name. Don't remove the wrong function from the hashtab. More
reference counting fixes.
8dd3a43d75
Problem: Using function() with a name will find another function when it is
redefined.
Solution: Add funcref(). Refer to lambda using a partial. Fix several
reference counting issues.
437bafe4c8
Problem: User defined functions can't be a closure.
Solution: Add the "closure" argument. Allow using :unlet on a bound
variable. (Yasuhiro Matsumoto, Ken Takata)
10ce39a0d5
Problem: Using submatch() in a lambda passed to substitute() is verbose.
Solution: Use a static list and pass it as an optional argument to the
function. Fix memory leak.
df48fb456f
Problem: filter() and map() either require a string or defining a function.
Solution: Support lambda, a short way to define a function that evaluates an
expression. (Yasuhiro Matsumoto, Ken Takata)
069c1e7fa9
Problem: Cannot detect a crash in tests when caused by garbagecollect().
Solution: Add garbagecollect_for_testing(). Do not free a job if is still
useful.
ebf7dfa6f1
1. When calling writefile(list, fname, []) do not show error message twice.
2. Do not allow file name to be overwritten for writefile([1], 2).
3. Do not show “Can’t open file with an empty name” error after error like
“using Float as a String” when type of the second argument is not correct.
4. Do not give multiple error messages and still continue for code like
`writefile(["test", [], [], [], "tset"])`.
Note that to fix 4. ideally I need tv_check_str_or_nr which is currently present
in two PRs: #6114 and #5119. I would want to avoid copying this function into
a yet another PR.
Ref vim/vim#1476.
