Previously, attempting to change the visibility of a method in a
singleton class for a class/module that is prepended to and refined
would raise a NoMethodError.
Fixes [Bug #17519]
It's important to only make the origin when the prepend goes
through, as the precense of the origin informs whether to do an
origin backfill.
This plus 2d877327e fix [Bug #17590].
Check for cyclic prepend before making any changes. This requires
scanning the module ancestor chain twice, but in general modules
do not have large numbers of ancestors.
Previously, if a class included a module and then prepended the
same module, the prepend had no effect. This changes the behavior
so that the prepend has an effect unless the module is already
prepended the receiver.
While here, rename the origin_seen variable in include_modules_at,
since it is misleading. The variable tracks whether c has been seen,
not whether the origin of klass has been.
Fixes [Bug #17423]
Also document that both :deprecated and :experimental are supported
:category option values.
The locations where warnings were marked as deprecation warnings
was previously reviewed by shyouhei.
Comment a couple locations where deprecation warnings should probably
be used but are not currently used because deprecation warning
enablement has not occurred at the time they are called
(RUBY_FREE_MIN, RUBY_HEAP_MIN_SLOTS, -K).
Add assert_deprecated_warn to test assertions. Use this to simplify
some tests, and fix failing tests after marking some warnings with
deprecated category.
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]
Module#include should only be able to insert modules after the origin,
otherwise it ends up working like Module#prepend.
This fixes the case where one of the modules in the included module
chain is included in a module that is already prepended to the receiver.
Fixes [Bug #7844]
3556a834a2 added support for
Module#include to affect the iclasses of the module. It didn't add
support for Module#prepend because there were bugs in the object model
and GC at the time that prevented it. Those problems have been
addressed in ad729a1d11 and
98286e9850, and now adding support for
it is straightforward and does not break any tests or specs.
Fixes [Bug #9573]
This fixes various issues when a module is included in or prepended
to a module or class, and then refined, or refined and then included
or prepended to a module or class.
Implement by renaming ensure_origin to rb_ensure_origin, making it
non-static, and calling it when refining a module.
Fix Module#initialize_copy to handle origins correctly. Previously,
Module#initialize_copy did not handle origins correctly. For example,
this code:
```ruby
module B; end
class A
def b; 2 end
prepend B
end
a = A.dup.new
class A
def b; 1 end
end
p a.b
```
Printed 1 instead of 2. This is because the super chain for
a.singleton_class was:
```
a.singleton_class
A.dup
B(iclass)
B(iclass origin)
A(origin) # not A.dup(origin)
```
The B iclasses would not be modified, so the includer entry would be
still be set to A and not A.dup.
This modifies things so that if the class/module has an origin,
all iclasses between the class/module and the origin are duplicated
and have the correct includer entry set, and the correct origin
is created.
This requires other changes to make sure all tests still pass:
* rb_undef_methods_from doesn't automatically handle classes with
origins, so pass it the origin for Comparable when undefing
methods in Complex. This fixed a failure in the Complex tests.
* When adding a method, the method cache was not cleared
correctly if klass has an origin. Clear the method cache for
the klass before switching to the origin of klass. This fixed
failures in the autoload tests related to overridding require,
without breaking the optimization tests. Also clear the method
cache for both the module and origin when removing a method.
* Module#include? is fixed to skip origin iclasses.
* Refinements are fixed to use the origin class of the module that
has an origin.
* RCLASS_REFINED_BY_ANY is removed as it was only used in a single
place and is no longer needed.
* Marshal#dump is fixed to skip iclass origins.
* rb_method_entry_make is fixed to handled overridden optimized
methods for modules that have origins.
Fixes [Bug #16852]
If a module has an origin, and that module is included in another
module or class, previously the iclass created for the module had
an origin pointer to the module's origin instead of the iclass's
origin.
Setting the origin pointer correctly requires using a stack, since
the origin iclass is not created until after the iclass itself.
Use a hidden ruby array to implement that stack.
Correctly assigning the origin pointers in the iclass caused a
use-after-free in GC. If a module with an origin is included
in a class, the iclass shares a method table with the module
and the iclass origin shares a method table with module origin.
Mark iclass origin with a flag that notes that even though the
iclass is an origin, it shares a method table, so the method table
should not be garbage collected. The shared method table will be
garbage collected when the module origin is garbage collected.
I've tested that this does not introduce a memory leak.
This change caused a VM assertion failure, which was traced to callable
method entries using the incorrect defined_class. Update
rb_vm_check_redefinition_opt_method and find_defined_class_by_owner
to treat iclass origins different than class origins to avoid this
issue.
This also includes a fix for Module#included_modules to skip
iclasses with origins.
Fixes [Bug #16736]
If a module has an origin, and that module is included in another
module or class, previously the iclass created for the module had
an origin pointer to the module's origin instead of the iclass's
origin.
Setting the origin pointer correctly requires using a stack, since
the origin iclass is not created until after the iclass itself.
Use a hidden ruby array to implement that stack.
Correctly assigning the origin pointers in the iclass caused a
use-after-free in GC. If a module with an origin is included
in a class, the iclass shares a method table with the module
and the iclass origin shares a method table with module origin.
Mark iclass origin with a flag that notes that even though the
iclass is an origin, it shares a method table, so the method table
should not be garbage collected. The shared method table will be
garbage collected when the module origin is garbage collected.
I've tested that this does not introduce a memory leak.
This also includes a fix for Module#included_modules to skip
iclasses with origins.
Fixes [Bug #16736]
When calling Module#include, if the receiver is a module,
walk the subclasses list and include the argument module in each
iclass.
This does not affect Module#prepend, as fixing that is significantly
more involved.
Fixes [Bug #9573]
This makes it possible to initialize_clone to correctly not freeze
internal state if the freeze: false keyword is passed to clone.
If clone is called with freeze: true or no keyword, do not pass
a second argument to initialize_clone to keep backwards
compatibility.
This makes it so that external libraries that override
initialize_clone but do not support the freeze keyword will fail
with ArgumentError if passing freeze: false to clone. I think that
is better than the current behavior, which succeeds but results in
an unfrozen object with frozen internals.
Fix related issues in set and delegate in stdlib.
Fixes [Bug #14266]
This makes it consistent with calling private attribute assignment
methods, which currently is allowed (e.g. `self.value =`).
Calling a private method in this way can be useful when trying to
assign the return value to a local variable with the same name.
[Feature #11297] [Feature #16123]
b00f280d4b introduced
an accidental behavior change in that defining a module/class under
`m` gives `m` a name when `m` is anonymous.
`ruby -ve 'Module.new { class self::A; end; p name }'` outputs a name
similar to `Module#inspect` when it should output `nil` like in Ruby
2.6.x.
* variable.c: Use `make_temporary_path` instead of `save_temporary_path`
when getting the name of the parent module.
* variable.c (rb_set_class_path): Delegate to `rb_set_class_path_string`
instead of duplicating the logic.
[Bug #16097]
Methods on duplicated class/module refer same constant inline
cache (IC). Constant access lookup should be done for cloned
class/modules but inline cache doesn't check it.
To check it, this patch introduce new RCLASS_CLONED flag which
are set when if class/module is cloned (both orig and dst).
[Bug #15877]
Previously, attr* methods could be private even if not in the
private section of a class/module block.
This uses the same approach that ruby started using for define_method
in 1fc3319973.
Fixes [Bug #4537]
* test/ruby/test_module.rb (TestModule#test_nested_get): fix a
typo. nested module's name is a qualified path.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67471 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
