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This speeds up all instance variable access, even when not in
verbose mode. Uninitialized instance variable warnings were
rarely helpful, and resulted in slower code if you wanted to
avoid warnings when run in verbose mode.
Implements [Feature #17055]
Notes:
Merged: https://github.com/ruby/ruby/pull/3879
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* Otherwise those tests, etc cannot run on alternative Ruby implementations.
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Fixes [Feature #13381]
When passed a `fake_str`, `register_fstring` would create new strings
with `str_new_static`. That's not what was expected, and answer
almost no use cases.
Notes:
Merged: https://github.com/ruby/ruby/pull/3786
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This modifies the following String methods to return String instances
instead of subclass instances:
* String#*
* String#capitalize
* String#center
* String#chomp
* String#chop
* String#delete
* String#delete_prefix
* String#delete_suffix
* String#downcase
* String#dump
* String#each/#each_line
* String#gsub
* String#ljust
* String#lstrip
* String#partition
* String#reverse
* String#rjust
* String#rpartition
* String#rstrip
* String#scrub
* String#slice!
* String#slice/#[]
* String#split
* String#squeeze
* String#strip
* String#sub
* String#succ/#next
* String#swapcase
* String#tr
* String#tr_s
* String#upcase
This also fixes a bug in String#swapcase where it would return the
receiver instead of a copy of the receiver if the receiver was the
empty string.
Some string methods were left to return subclass instances:
* String#+@
* String#-@
Both of these methods will return the receiver (subclass instance)
in some cases, so it is best to keep the returned class consistent.
Fixes [#10845]
Notes:
Merged: https://github.com/ruby/ruby/pull/3701
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Notes:
Merged: https://github.com/ruby/ruby/pull/3024
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* random.c: separate abstract rb_random_t and rb_random_mt_t for
Mersenne Twister implementation.
* include/ruby/random.h: the interface for extensions of Random
class.
* DLL imported symbol reference is not constant on Windows.
* check if properly initialized.
Notes:
Merged: https://github.com/ruby/ruby/pull/3024
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... in addition to normal iseq frames.
It is sometimes useful to point the bottleneck more precisely.
Notes:
Merged: https://github.com/ruby/ruby/pull/3299
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Don't use rb_check_id, which only works for pinned symbols.
Switch inadvertent creation test for thread_variable? to
only check for pinned symbols, same as thread_variable_get
and thread_variable_set.
Make key variable name in thread_local_set match
thread_local_get and thread_variable?.
Fixes [Bug #16906]
Notes:
Merged: https://github.com/ruby/ruby/pull/3145
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Right now `SomeClass.method` is properly named, but `SomeModule.method`
is displayed as `#<Module:0x000055eb5d95adc8>.method` which makes
profiling annoying.
Notes:
Merged: https://github.com/ruby/ruby/pull/3084
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Since 0c2d81dada, not all trace events are cleared during VM teardown.
This causes a crash when there is a tracepoint for
`RUBY_INTERNAL_EVENT_GC_EXIT` active during teardown.
The commit looks like a refactoring commit so I think this change was
unintentional.
[Bug #16682]
Notes:
Merged: https://github.com/ruby/ruby/pull/2959
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Test not-implemented method with the dedicated methods, instead of
platform dependent features.
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This patch contains several ideas:
(1) Disposable inline method cache (IMC) for race-free inline method cache
* Making call-cache (CC) as a RVALUE (GC target object) and allocate new
CC on cache miss.
* This technique allows race-free access from parallel processing
elements like RCU.
(2) Introduce per-Class method cache (pCMC)
* Instead of fixed-size global method cache (GMC), pCMC allows flexible
cache size.
* Caching CCs reduces CC allocation and allow sharing CC's fast-path
between same call-info (CI) call-sites.
(3) Invalidate an inline method cache by invalidating corresponding method
entries (MEs)
* Instead of using class serials, we set "invalidated" flag for method
entry itself to represent cache invalidation.
* Compare with using class serials, the impact of method modification
(add/overwrite/delete) is small.
* Updating class serials invalidate all method caches of the class and
sub-classes.
* Proposed approach only invalidate the method cache of only one ME.
See [Feature #16614] for more details.
Notes:
Merged: https://github.com/ruby/ruby/pull/2888
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Now, rb_call_info contains how to call the method with tuple of
(mid, orig_argc, flags, kwarg). Most of cases, kwarg == NULL and
mid+argc+flags only requires 64bits. So this patch packed
rb_call_info to VALUE (1 word) on such cases. If we can not
represent it in VALUE, then use imemo_callinfo which contains
conventional callinfo (rb_callinfo, renamed from rb_call_info).
iseq->body->ci_kw_size is removed because all of callinfo is VALUE
size (packed ci or a pointer to imemo_callinfo).
To access ci information, we need to use these functions:
vm_ci_mid(ci), _flag(ci), _argc(ci), _kwarg(ci).
struct rb_call_info_kw_arg is renamed to rb_callinfo_kwarg.
rb_funcallv_with_cc() and rb_method_basic_definition_p_with_cc()
is temporary removed because cd->ci should be marked.
Notes:
Merged: https://github.com/ruby/ruby/pull/2888
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Notes:
Merged: https://github.com/ruby/ruby/pull/2794
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warnings
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(old)
test.rb:4: warning: The last argument is used as the keyword parameter
test.rb:1: warning: for `foo' defined here; maybe ** should be added to the call?
(new)
test.rb:4: warning: The last argument is used as keyword parameters; maybe ** should be added to the call
test.rb:1: warning: The called method `foo' is defined here
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Fixed misspellings reported at [Bug #16437], only in ruby and rubyspec.
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Asynchronous events such as signal trap, finalization timing,
thread switching and so on are managed by "interrupt_flag".
Ruby's threads check this flag periodically and if a thread
does not check this flag, above events doesn't happen.
This checking is CHECK_INTS() (related) macro and it is placed
at some places (laeve instruction and so on). However, at the end
of C methods, C blocks (IMEMO_IFUNC) etc there are no checking
and it can introduce uninterruptible thread.
To modify this situation, we decide to place CHECK_INTS() at
vm_pop_frame(). It increases interrupt checking points.
[Bug #16366]
This patch can introduce unexpected events...
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This removes the related tests, and puts the related specs behind
version guards. This affects all code in lib, including some
libraries that may want to support older versions of Ruby.
Notes:
Merged: https://github.com/ruby/ruby/pull/2476
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This reverts commit 6ffc045a817fbdf04a6945d3c260b55b0fa1fd1e.
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`8 * RbConfig::SIZEOF` ... is not straight.
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Currently, there is not a way to create a sized enumerator in C
with a different set of arguments than provided by Ruby, and
correctly handle keyword arguments. This function allows that.
The need for this is fairly uncommon, but it occurs at least in
Enumerator.produce, which takes arugments from Ruby but calls
rb_enumeratorize_with_size with a different set of arguments.
Notes:
Merged: https://github.com/ruby/ruby/pull/2509
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"in void context" by assigning the result to a dummy variable.
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This adds rb_funcall_passing_block_kw, rb_funcallv_public_kw,
and rb_yield_splat_kw. This functions are necessary to easily
handle cases where rb_funcall_passing_block, rb_funcallv_public,
and rb_yield_splat are currently used and a keyword argument
separation warning is raised.
Notes:
Merged: https://github.com/ruby/ruby/pull/2507
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* Always the same frozen String for a given Symbol.
* Avoids extra allocations whenever calling Symbol#to_s.
* See [Feature #16150]
Notes:
Merged: https://github.com/ruby/ruby/pull/2437
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The buffer deduplication codepath in rb_fstring can be used to free the buffer
of shared string roots, which leads to use-after-free.
Introudce a new flag to tag strings that at one point have been a shared root.
Check for it in rb_fstring to avoid freeing buffers that are shared by
multiple strings. This change is based on nobu's idea in [ruby-core:94838].
The included test case test for the sequence of calls to internal functions
that lead to this bug. See attached ticket for Ruby level repros.
[Bug #16151]
Notes:
Merged: https://github.com/ruby/ruby/pull/2480
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Cfuncs that use rb_scan_args with the : entry suffer similar keyword
argument separation issues that Ruby methods suffer if the cfuncs
accept optional or variable arguments.
This makes the following changes to : handling.
* Treats as **kw, prompting keyword argument separation warnings
if called with a positional hash.
* Do not look for an option hash if empty keywords are provided.
For backwards compatibility, treat an empty keyword splat as a empty
mandatory positional hash argument, but emit a a warning, as this
behavior will be removed in Ruby 3. The argument number check
needs to be moved lower so it can correctly handle an empty
positional argument being added.
* If the last argument is nil and it is necessary to treat it as an option
hash in order to make sure all arguments are processed, continue to
treat the last argument as the option hash. Emit a warning in this case,
as this behavior will be removed in Ruby 3.
* If splitting the keyword hash into two hashes, issue a warning, as we
will not be splitting hashes in Ruby 3.
* If the keyword argument is required to fill a mandatory positional
argument, continue to do so, but emit a warning as this behavior will
be going away in Ruby 3.
* If keyword arguments are provided and the last argument is not a hash,
that indicates something wrong. This can happen if a cfunc is calling
rb_scan_args multiple times, and providing arguments that were not
passed to it from Ruby. Callers need to switch to the new
rb_scan_args_kw function, which allows passing of whether keywords
were provided.
This commit fixes all warnings caused by the changes above.
It switches some function calls to *_kw versions with appropriate
kw_splat flags. If delegating arguments, RB_PASS_CALLED_KEYWORDS
is used. If creating new arguments, RB_PASS_KEYWORDS is used if
the last argument is a hash to be treated as keywords.
In open_key_args in io.c, use rb_scan_args_kw.
In this case, the arguments provided come from another C
function, not Ruby. The last argument may or may not be a hash,
so we can't set keyword argument mode. However, if it is a
hash, we don't want to warn when treating it as keywords.
In Ruby files, make sure to appropriately use keyword splats
or literal keywords when calling Cfuncs that now issue keyword
argument separation warnings through rb_scan_args. Also, make
sure not to pass nil in place of an option hash.
Work around Kernel#warn warnings due to problems in the Rubygems
override of the method. There is an open pull request to fix
these issues in Rubygems, but part of the Rubygems tests for
their override fail on ruby-head due to rb_scan_args not
recognizing empty keyword splats, which this commit fixes.
Implementation wise, adding rb_scan_args_kw is kind of a pain,
because rb_scan_args takes a variable number of arguments.
In order to not duplicate all the code, the function internals need
to be split into two functions taking a va_list, and to avoid passing
in a ton of arguments, a single struct argument is used to handle
the variables previously local to the function.
Notes:
Merged-By: jeremyevans <code@jeremyevans.net>
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It is not dumped, as it is a short alias for `:encoding`.
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PC modification in gc_event_hook_body was careless. There are (so
to say) abnormal iseqs stored in the cfp. We have to check sanity
before we touch the PC.
This has not been fixed because there was no way to (ab)use the
setup from pure-Ruby. However by using our official C APIs it is
possible to touch such frame(s), resulting in SEGV.
Fixes [Bug #14834].
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When a string is #frozen, it's capacity is resized to fit (if it is much
larger), since we know it will no longer be mutated.
> puts ObjectSpace.dump(String.new("a"*30, capacity: 1000))
{"type":"STRING", "class":"0x7feaf00b7bf0", "bytesize":30, "capacity":1000, "value":"...
> puts ObjectSpace.dump(String.new("a"*30, capacity: 1000).freeze)
{"type":"STRING", "class":"0x7feaf00b7bf0", "frozen":true, "bytesize":30, "value":"...
(ObjectSpace.dump doesn't show capacity if capacity is equal to bytesize)
Previously, if we dedup into an fstring, using String#-@, capacity would
not be reduced.
> puts ObjectSpace.dump(-String.new("a"*30, capacity: 1000))
{"type":"STRING", "class":"0x7feaf00b7bf0", "frozen":true, "fstring":true, "bytesize":30, "capacity":1000, "value":"...
This commit makes rb_fstring call rb_str_resize, the same as
rb_str_freeze does.
Closes: https://github.com/ruby/ruby/pull/2256
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[Bug #14194]
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This is a follow up for 3f9562015e651735bfc2fdd14e8f6963b673e22a.
Before this commit, it was possible to create a shared string which
shares with another shared string by passing a frozen shared string
to `str_duplicate`.
Such string looks like:
```
-------- -----------------
| root | ------ owns -----> | root's buffer |
-------- -----------------
^ ^ ^
----------- | |
| shared1 | ------ references ----- |
----------- |
^ |
----------- |
| shared2 | ------ references ---------
-----------
```
This is bad news because `rb_fstring(shared2)` can make `shared1`
independent, which severs the reference from `shared1` to `root`:
```c
/* from fstr_update_callback() */
str = str_new_frozen(rb_cString, shared2); /* can return shared1 */
if (STR_SHARED_P(str)) { /* shared1 is also a shared string */
str_make_independent(str); /* no frozen check */
}
```
If `shared1` was the only reference to `root`, then `root` can be
reclaimed by the GC, leaving `shared2` in a corrupted state:
```
----------- --------------------
| shared1 | -------- owns --------> | shared1's buffer |
----------- --------------------
^
|
----------- -------------------------
| shared2 | ------ references ----> | root's buffer (freed) |
----------- -------------------------
```
Here is a reproduction script for the situation this commit fixes.
```ruby
a = ('a' * 24).strip.freeze.strip
-a
p a
4.times { GC.start }
p a
```
- string.c (str_duplicate): always share with the root string when
the original is a shared string.
- test_rb_str_dup.rb: specifically test `rb_str_dup` to make
sure it does not try to share with a shared string.
[Bug #15792]
Closes: https://github.com/ruby/ruby/pull/2159
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Revert r64358. [Bug #15658]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67217 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* numeric.c (int_pow): fix infinite loop in the case of y equal 1
and power of x does not overflow.
[ruby-core:91734] [Bug #15651]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67203 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67187 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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zlib and bignum both contain unblocking functions which are
async-signal-safe and do not require spawning additional
threads.
We can execute those functions directly in signal handlers
without incurring overhead of extra threads, so provide C-API
users the ability to deal with that. Other C-API users may
have similar need.
This flexible API can supercede existing uses of
rb_thread_call_without_gvl and rb_thread_call_without_gvl2 by
introducing a flags argument to control behavior.
Note: this API is NOT finalized. It needs approval from other
committers. I prefer shorter name than previous
rb_thread_call_without_gvl* functions because my eyes requires
big fonts.
[Bug #15499]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66712 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Even 60s is short for our CI environments:
https://rubyci.org/logs/rubyci.s3.amazonaws.com/amazon/ruby-trunk/log/20181228T153002Z.fail.html.gz
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@66626 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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