Bug #17044: ObjectSpace.dump allocates one string per anonymous class and module

• Status: Closed
• Assignee: -
• Target version: -
• ruby -v: ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c)
• Backport: 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: REQUIRED

[byroot (Jean Boussier)]

This is because it dump the module/class names using rb_class2name which will create an ad hoc name for anonymous classes (e.g. "#<Class:0x00007fc8bdcda630>")

Since ObjectSpace.dump_all is used to observe the heap, it should ideally not modify it.

The fix for it was merged by @nobu (Nobuyoshi Nakada) as 6a0cb1d649ecfc3e2af922c74ce82b3ff95fb12a and 347639ad8ad9fe2c6e88ff9b4faa21a11568bf6a, but I'd like to request it to be backported to at least 2.7

[jeremyevans0 (Jeremy Evans)]

• Status changed from Open to Closed
• Backport changed from 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: UNKNOWN to 2.5: UNKNOWN, 2.6: UNKNOWN, 2.7: REQUIRED