ruby-changes:37604
From: ktsj <ko1@a...>
Date: Sun, 22 Feb 2015 16:05:23 +0900 (JST)
Subject: [ruby-changes:37604] ktsj:r49685 (trunk): * vm_insnhelper.c (rb_vm_rewrite_cref_stack): copy nd_refinements
ktsj 2015-02-22 16:05:14 +0900 (Sun, 22 Feb 2015) New Revision: 49685 http://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=49685 Log: * vm_insnhelper.c (rb_vm_rewrite_cref_stack): copy nd_refinements of orignal crefs. It fixes segmentation fault when calling refined method in duplicate module. [ruby-dev:48878] [Bug #10885] * vm_core.h, class.c: change accordingly. * test/ruby/test_refinement.rb: add a test for above. Modified files: trunk/ChangeLog trunk/class.c trunk/test/ruby/test_refinement.rb trunk/vm_core.h trunk/vm_insnhelper.c Index: ChangeLog =================================================================== --- ChangeLog (revision 49684) +++ ChangeLog (revision 49685) @@ -1,3 +1,13 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1 +Sun Feb 22 15:56:06 2015 Kazuki Tsujimoto <kazuki@c...> + + * vm_insnhelper.c (rb_vm_rewrite_cref_stack): copy nd_refinements + of orignal crefs. It fixes segmentation fault when calling + refined method in duplicate module. [ruby-dev:48878] [Bug #10885] + + * vm_core.h, class.c: change accordingly. + + * test/ruby/test_refinement.rb: add a test for above. + Sun Feb 22 10:43:37 2015 Koichi Sasada <ko1@a...> * gc.c (rb_objspace_call_finalizer): control GC execution during Index: vm_core.h =================================================================== --- vm_core.h (revision 49684) +++ vm_core.h (revision 49685) @@ -1003,6 +1003,8 @@ void rb_gc_mark_machine_stack(rb_thread_ https://github.com/ruby/ruby/blob/trunk/vm_core.h#L1003 int rb_autoloading_value(VALUE mod, ID id, VALUE* value); +void rb_vm_rewrite_cref_stack(NODE *node, VALUE old_klass, VALUE new_klass, NODE **new_cref_ptr); + #define sysstack_error GET_VM()->special_exceptions[ruby_error_sysstack] #define RUBY_CONST_ASSERT(expr) (1/!!(expr)) /* expr must be a compile-time constant */ Index: class.c =================================================================== --- class.c (revision 49684) +++ class.c (revision 49685) @@ -241,25 +241,6 @@ rb_class_new(VALUE super) https://github.com/ruby/ruby/blob/trunk/class.c#L241 } static void -rewrite_cref_stack(NODE *node, VALUE old_klass, VALUE new_klass, NODE **new_cref_ptr) -{ - NODE *new_node; - while (node) { - if (node->nd_clss == old_klass) { - new_node = NEW_CREF(new_klass); - RB_OBJ_WRITE(new_node, &new_node->nd_next, node->nd_next); - *new_cref_ptr = new_node; - return; - } - new_node = NEW_CREF(node->nd_clss); - node = node->nd_next; - *new_cref_ptr = new_node; - new_cref_ptr = &new_node->nd_next; - } - *new_cref_ptr = NULL; -} - -static void clone_method(VALUE klass, ID mid, const rb_method_entry_t *me) { VALUE newiseqval; @@ -268,7 +249,7 @@ clone_method(VALUE klass, ID mid, const https://github.com/ruby/ruby/blob/trunk/class.c#L249 NODE *new_cref; newiseqval = rb_iseq_clone(me->def->body.iseq->self, klass); GetISeqPtr(newiseqval, iseq); - rewrite_cref_stack(me->def->body.iseq->cref_stack, me->klass, klass, &new_cref); + rb_vm_rewrite_cref_stack(me->def->body.iseq->cref_stack, me->klass, klass, &new_cref); RB_OBJ_WRITE(iseq->self, &iseq->cref_stack, new_cref); rb_add_method(klass, mid, VM_METHOD_TYPE_ISEQ, iseq, me->flag); RB_GC_GUARD(newiseqval); Index: vm_insnhelper.c =================================================================== --- vm_insnhelper.c (revision 49684) +++ vm_insnhelper.c (revision 49685) @@ -264,6 +264,27 @@ rb_vm_get_cref(const rb_iseq_t *iseq, co https://github.com/ruby/ruby/blob/trunk/vm_insnhelper.c#L264 return cref; } +void +rb_vm_rewrite_cref_stack(NODE *node, VALUE old_klass, VALUE new_klass, NODE **new_cref_ptr) +{ + NODE *new_node; + while (node) { + if (node->nd_clss == old_klass) { + new_node = NEW_CREF(new_klass); + COPY_CREF_OMOD(new_node, node); + RB_OBJ_WRITE(new_node, &new_node->nd_next, node->nd_next); + *new_cref_ptr = new_node; + return; + } + new_node = NEW_CREF(node->nd_clss); + COPY_CREF_OMOD(new_node, node); + node = node->nd_next; + *new_cref_ptr = new_node; + new_cref_ptr = &new_node->nd_next; + } + *new_cref_ptr = NULL; +} + static NODE * vm_cref_push(rb_thread_t *th, VALUE klass, int noex, rb_block_t *blockptr) { Index: test/ruby/test_refinement.rb =================================================================== --- test/ruby/test_refinement.rb (revision 49684) +++ test/ruby/test_refinement.rb (revision 49685) @@ -1400,6 +1400,34 @@ class TestRefinement < Test::Unit::TestC https://github.com/ruby/ruby/blob/trunk/test/ruby/test_refinement.rb#L1400 INPUT end + def test_call_refined_method_in_duplicate_module + bug10885 = '[ruby-dev:48878]' + assert_in_out_err([], <<-INPUT, [], [], bug10885) + module M + refine Object do + def raise + # do nothing + end + end + + class << self + using M + def m0 + raise + end + end + + using M + def M.m1 + raise + end + end + + M.dup.m0 + M.dup.m1 + INPUT + end + private def eval_using(mod, s) -- ML: ruby-changes@q... Info: http://www.atdot.net/~ko1/quickml/