Feature #22135: Remove obsolete `ObjectSpace#_id2ref`

• Status: Open
• Assignee: -
• Target version: -

[nobu (Nobuyoshi Nakada)]

As a result of [Feature #15408], the ObjectSpace#_id2ref method has been deprecated and now triggers a warning.
However, we recognize that its use had already been discouraged for a long time prior to this, and we believe it is rarely used nowadays.
Are there any objections to removing this method in version 4.1?

GH-17577

[nobu (Nobuyoshi Nakada)]

• Subject changed from Remove deprecated `ObjectSpace#_id2ref` to Remove obsolete `ObjectSpace#_id2ref`

[byroot (Jean Boussier)]

👍 this is a lot of complex and error prone code to support a deprecated feature. Very little gems ever used _id2ref and nowadays it's always advantageously replaced by a WeakMap.

[jhawthorn (John Hawthorn)]

+1 I would love to see this gone, we have to do a fair bit of work in the GC and elsewhere to maintain the id2ref table.