Issue #20606 has been reported by andrykonchin (Andrew Konchin). ---------------------------------------- Bug #20606: Thread#thread_variable_get, Thread#thread_variable? and Thread#[] methods handle non-String/Symbol parameter values differently https://bugs.ruby-lang.org/issues/20606 * Author: andrykonchin (Andrew Konchin) * Status: Open * ruby -v: 3.2.4 * Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- The `Thread#thread_variable_get`, `Thread#thread_variable?` and `Thread#[]` methods handle the `key` parameter that is not a String or a Symbol in different way but I would expect them to be consistent. When no thread-local variables were assigned to a thread the `Thread#thread_variable_get` and `Thread#thread_variable?` methods don't raise `TypeError` when argument is of incorrect type. But `Thread#[]` does raise `TypeError` exception: ```ruby t = Thread.new {}.join puts t.thread_variable_get(123).inspect # nil puts t.thread_variable?(123).inspect # false t[123] # `[]': 123 is not a symbol nor a string (TypeError) ``` -- https://bugs.ruby-lang.org/