Manage a redefinition of special methods for each classes.
A patch from Joel Gouly <joel.gouly@gmail.com>. Thanks!
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to solve an issue reported at [ruby-dev:44413] [Ruby 1.9 - Bug #5217].
Before this fix, each instruction has an information including
line number (iseq::iseq_insn_info_table). Instead of this data
structure, recording only line number changing places
(iseq::iseq_line_info_table).
The order of entries in iseq_line_info_table is ascending order of
iseq_line_info_table_entry::position. You can get a line number
by an iseq and a program counter with this data structure.
This fix reduces memory consumption of iseq (bytecode).
On my measurement, a rails application consumes 21.8MB for
iseq with this fix on the 32bit CPU. Without this fix, it
consumes 24.7MB for iseq [ruby-dev:44415].
* proc.c: ditto.
* vm_insnhelper.c: ditto.
* vm_method.c: ditto.
* vm.c (rb_vm_get_sourceline): change to use rb_iseq_line_no().
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NameError for undefined method.
* load.c (rb_mod_autoload_p), object.c (rb_mod_const_get),
variable.c (rb_f_untrace_var, set_const_visibility), vm_method.c
(rb_mod_{remove,undef,alias}_method, set_method_visibility):
remove inadvertent symbol creation. based on the first patch by
Jeremy Evans at [ruby-core:38447]. [Feature #5089]
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case. based on the patch by Jeremy Evans at [ruby-core:38417].
[Feature #5072]
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based on the second patch by Jeremy Evans at [ruby-core:38447]
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(rb_gc_mark_unlinked_live_method_entries): fix SEGV bug.
rb_method_entry_t was free'd even when the method is still on the
stack if it is BMETHOD (i.e., Method#call). This is because
rb_method_entry_t is embedded in struct METHOD. This commit
separates them and marks the live method entries.
See [ruby-core:38449] in detail. fix [Bug #5047] [ruby-core:38171]
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avoid inadvertent symbol creation in reflection methods. based
on a patch by Jeremy Evans at [ruby-core:38367]. [Feature #5072]
* vm_method.c (rb_mod_method_defined)
(rb_mod_{public,private,protected}_method_defined)
(obj_respond_to): ditto.
* parse.y (rb_check_id): new function returns already interned ID
or 0.
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* compile.c, eval.c, iseq.c, object.c, parse.y, proc.c, process.c,
thread.c, vm.c, vm_eval.c, vm_insnhelper.c, vm_method.c: don't
declare internal functions.
Note that rb_method_entry_eq() is defined in vm_method.c but
there was a declaration in proc.c with different const-ness.
Now it is declared in method.h with same const-ness to the
definition.
* object.c (rb_mod_module_exec): don't declare functions declared in
include/ruby/intern.h.
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ruby_vm_global_state_version and related macros
from vm_core.h to vm_insnhelper.h.
* vm.c (vm_clear_all_cache): added. This function is called
when ruby_vm_global_state_version overflows.
TODO: vm_clear_all_inline_method_cache() is only place holder.
We need to implement it ASAP.
* vm_method.c (vm_clear_global_method_cache): added.
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* vm_method.c (rb_method_entry_get_without_cache, rb_method_entry):
Fill method cache entry with vm state version, and
check current vm state version for method (cache) look up.
This modification speed-up invaridating of global method cache table.
[Ruby 1.9 - Feature #3905] [ruby-core:36908]
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environment variables. based on a patch from funny-falcon at
https://gist.github.com/856296, but honors safe level.
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transcode.c, variable.c, vm.c, vm_insnhelper.c, vm_method.c:
replace calls to rb_error_frozen() with rb_check_frozen(). a
patch from Run Paint Run Run at [ruby-core:32014]
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true) should return true. Pointed out by Marc-Andre Lafortune.
[ruby-dev:41837]
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methods when called from Kernel#respond_to?. [ruby-dev:40461]
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added. Unlinked method entries are collected to
vm->unlinked_method_entry_list. On the GC timing, mark all method
entries which are on all living threads. Only non-marked method
entries are collected. This hack prevents releasing living method
entry.
[Performance Consideration] Since this Method Entry GC (MEGC)
doesn't occuer frequently, MEGC will not be a performance bottleneck.
However, to traverse living method entries, every control frame push
needs to clear cfp->me field. This will be a performance issue
(because pushing control frame is occurred frequently).
Bug #2777 [ruby-dev:40457]
* cont.c (fiber_init): init cfp->me.
* gc.c (garbage_collect): kick rb_sweep_method_entry().
* method.h (rb_method_entry_t): add a mark field.
* vm.c (invoke_block_from_c): set passed me.
* vm.c (rb_thread_mark): mark cfp->me.
* vm_core.h (rb_thread_t): add a field passed_me.
* vm_core.h (rb_vm_t): add a field unlinked_method_entry_list.
* vm_insnhelper.c (vm_push_frame): clear cfp->me at all times.
* vm_insnhelper.c (vm_call_bmethod): pass me.
* bootstraptest/test_method.rb: add a test.
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rb_method_definition_t to prevent memory leak. see
[ruby-dev:41021].
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of methods. This is because cfp->me uses the rb_method_entry
which is freed by redefinition of remove_method. Note that
reusing may cause another problem when the usage is changed.
[ruby-core:27320] [ruby-core:29464]
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* vm_method.c (rb_add_method_cfunc): invalid initializer for C89
* compile.c (iseq_insns_unification): int might be smaller than int*
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1.instance_eval { undef to_s } causes SEGV before this fix.
* test/ruby/test_undef.rb: new tests for undef.
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based on the patch from Nikolai Lugovoi. [ruby-core:25949]
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#respond_to_missing? for not implemented methods.
[ruby-core:25909]
* vm_method.c (rb_method_boundp): returns exceptional value 2 for
not-implemented methods when called from #respond_to? (specifies
by new contant NOEX_RESPONDS).
* method.h (enum): new constant NOEX_RESPONDS added.
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