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Bug #16849

ObjectSpace.trace_object_allocations_stop fails if called before ObjectSpace.trace_object_allocations_start

Added by byroot (Jean Boussier) 6 months ago.

Status:
Open
Priority:
Normal
Assignee:
-
Target version:
-
ruby -v:
2.3.0 2.7.1
[ruby-core:98263]

Description

The error is easy to reproduce:

e.g. on Ruby 2.3:

$ ruby -robjspace -e 'ObjectSpace.trace_object_allocations_stop'
-e:1:in `trace_object_allocations_stop': wrong argument type false (expected tracepoint) (TypeError)
    from -e:1:in `<main>'

Up to ruby 2.7.1:

$ ruby -robjspace -e 'ObjectSpace.trace_object_allocations_stop'
Traceback (most recent call last):
    1: from -e:1:in `<main>'
-e:1:in `trace_object_allocations_stop': wrong argument type false (expected tracepoint) (TypeError)

I have patch for it: https://github.com/ruby/ruby/pull/3001/files

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