`$SAFE` as a process global state. [Feature #14250]

* vm_core.h (rb_vm_t): move `rb_execution_context_t::safe_level` to
  `rb_vm_t::safe_level_` because `$SAFE` is a process (VM) global state.

* vm_core.h (rb_proc_t): remove `rb_proc_t::safe_level` because `Proc`
  objects don't need to keep `$SAFE` at the creation.
  Also make `is_from_method` and `is_lambda` as 1 bit fields.

* cont.c (cont_restore_thread): no need to keep `$SAFE` for Continuation.

* eval.c (ruby_cleanup): use `rb_set_safe_level_force()` instead of access
  `vm->safe_level_` directly.

* eval_jump.c: End procs `END{}` doesn't keep `$SAFE`.

* proc.c (proc_dup): removed and introduce `rb_proc_dup` in vm.c.

* safe.c (rb_set_safe_level): don't check `$SAFE` 1 -> 0 changes.

* safe.c (safe_setter): use `rb_set_safe_level()`.

* thread.c (rb_thread_safe_level): `Thread#safe_level` returns `$SAFE`.
  It should be obsolete.

* transcode.c (load_transcoder_entry): `rb_safe_level()` only returns
  0 or 1 so that this check is not needed.

* vm.c (vm_proc_create_from_captured): don't need to keep `$SAFE` for Proc.

* vm.c (rb_proc_create): renamed to `proc_create`.

* vm.c (rb_proc_dup): moved from proc.c.

* vm.c (vm_invoke_proc): do not need to set and restore `$SAFE`
  for `Proc#call`.

* vm_eval.c (rb_eval_cmd): rename a local variable to represent clearer
  meaning.

* lib/drb/drb.rb: restore `$SAFE`.

* lib/erb.rb: restore `$SAFE`, too.

* test/lib/leakchecker.rb: check `$SAFE == 0` at the end of tests.

* test/rubygems/test_gem.rb: do not set `$SAFE = 1`.

* bootstraptest/test_proc.rb: catch up this change.

* spec/ruby/optional/capi/string_spec.rb: ditto.

* test/bigdecimal/test_bigdecimal.rb: ditto.

* test/fiddle/test_func.rb: ditto.

* test/fiddle/test_handle.rb: ditto.

* test/net/imap/test_imap_response_parser.rb: ditto.

* test/pathname/test_pathname.rb: ditto.

* test/readline/test_readline.rb: ditto.

* test/ruby/test_file.rb: ditto.

* test/ruby/test_optimization.rb: ditto.

* test/ruby/test_proc.rb: ditto.

* test/ruby/test_require.rb: ditto.

* test/ruby/test_thread.rb: ditto.

* test/rubygems/test_gem_specification.rb: ditto.

* test/test_tempfile.rb: ditto.

* test/test_tmpdir.rb: ditto.

* test/win32ole/test_win32ole.rb: ditto.

* test/win32ole/test_win32ole_event.rb: ditto.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@61510 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 16 insertions, 8 deletions

diff --git a/test/ruby/test_proc.rb b/test/ruby/test_proc.rb
index 1a1ca24228..1607baf067 100644
--- a/test/ruby/test_proc.rb
+++ b/test/ruby/test_proc.rb
@@ -160,26 +160,34 @@ class TestProc < Test::Unit::TestCase
       $SAFE += 1
       proc {$SAFE}
     }.call
-    assert_equal(safe, $SAFE)
+
+    assert_equal(safe + 1, $SAFE)
     assert_equal(safe + 1, p.call)
-    assert_equal(safe, $SAFE)
+    assert_equal(safe + 1, $SAFE)
 
+    $SAFE = 0
     c.class_eval {define_method(:safe, p)}
     assert_equal(safe, x.safe)
-    assert_equal(safe, x.method(:safe).call)
-    assert_equal(safe, x.method(:safe).to_proc.call)
 
+    $SAFE = 0
     p = proc {$SAFE += 1}
     assert_equal(safe + 1, p.call)
-    assert_equal(safe, $SAFE)
+    assert_equal(safe + 1, $SAFE)
 
+    $SAFE = 0
     c.class_eval {define_method(:inc, p)}
     assert_equal(safe + 1, proc {x.inc; $SAFE}.call)
-    assert_equal(safe, $SAFE)
+    assert_equal(safe + 1, $SAFE)
+
+    $SAFE = 0
     assert_equal(safe + 1, proc {x.method(:inc).call; $SAFE}.call)
-    assert_equal(safe, $SAFE)
+    assert_equal(safe + 1, $SAFE)
+
+    $SAFE = 0
     assert_equal(safe + 1, proc {x.method(:inc).to_proc.call; $SAFE}.call)
-    assert_equal(safe, $SAFE)
+    assert_equal(safe + 1, $SAFE)
+  ensure
+    $SAFE = 0
   end
 
   def m2