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Luke Gruber
4eed7d64ea
During method aliasing, we check if the methods `a` and `b` are equal before aliasing. If they are equal, we don't need to alias. That check was running Ruby code with the VM lock held when the first method was a bmethod, which is not good and can cause incorrect behavior. Now, we call `rb_proc_eq` directly. This means an override of `Proc#==` will not be called to check if 2 methods are equal and will instead use the definition of Proc equality at VM startup. `Method#==` and `UnboundMethod==` will also not call into `Proc#==` now for bmethods. This is probably better behavior even without the VM lock fix because `Method#hash` never called `Proc#hash` when the method was a bmethod, it used `rb_hash_proc` directly. Fixes [Bug #22398]
35 lines
1.5 KiB
C
35 lines
1.5 KiB
C
#ifndef INTERNAL_PROC_H /*-*-C-*-vi:se ft=c:*/
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#define INTERNAL_PROC_H
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/**
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* @author Ruby developers <ruby-core@ruby-lang.org>
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* @copyright This file is a part of the programming language Ruby.
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* Permission is hereby granted, to either redistribute and/or
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* modify this file, provided that the conditions mentioned in the
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* file COPYING are met. Consult the file for details.
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* @brief Internal header for Proc.
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*/
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#include "ruby/ruby.h" /* for rb_block_call_func_t */
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#include "ruby/st.h" /* for st_index_t */
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struct rb_block; /* in vm_core.h */
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struct rb_code_location_struct; /* in rubyparser.h */
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struct rb_iseq_struct; /* in vm_core.h */
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/* proc.c */
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VALUE rb_proc_location(VALUE self);
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st_index_t rb_hash_proc(st_index_t hash, VALUE proc);
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VALUE rb_proc_eq(VALUE self, VALUE other);
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int rb_block_pair_yield_optimizable(void);
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int rb_block_arity(void);
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int rb_block_min_max_arity(int *max);
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VALUE rb_block_to_s(VALUE self, const struct rb_block *block, const char *additional_info);
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VALUE rb_callable_receiver(VALUE);
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VALUE rb_source_range_new(VALUE path, VALUE absolute_path,
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const struct rb_code_location_struct *location);
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VALUE rb_func_proc_dup(VALUE src_obj);
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VALUE rb_func_lambda_new(rb_block_call_func_t func, VALUE val, int min_argc, int max_argc);
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VALUE rb_iseq_location(const struct rb_iseq_struct *iseq);
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VALUE rb_sym_to_proc(VALUE sym);
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#endif /* INTERNAL_PROC_H */
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