diff options
Diffstat (limited to 'activesupport/lib/active_support/core_ext/thread.rb')
| -rw-r--r-- | activesupport/lib/active_support/core_ext/thread.rb | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/activesupport/lib/active_support/core_ext/thread.rb b/activesupport/lib/active_support/core_ext/thread.rb index ac1ffa4128..4cd6634558 100644 --- a/activesupport/lib/active_support/core_ext/thread.rb +++ b/activesupport/lib/active_support/core_ext/thread.rb @@ -62,6 +62,13 @@ class Thread _locals.has_key?(key.to_sym) end + # Freezes the thread so that thread local variables cannot be set via + # Thread#thread_variable_set, nor can fiber local variables be set. + # + # me = Thread.current + # me.freeze + # me.thread_variable_set(:oliver, "a") #=> RuntimeError: can't modify frozen thread locals + # me[:oliver] = "a" #=> RuntimeError: can't modify frozen thread locals def freeze _locals.freeze super |