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2023-04-15Implement ObjectSpace::WeakMap#delete and ObjectSpace::WeakKeyMap#deleteJean Boussier
[Feature #19561] It's useful to be able to remove references from weak maps. Notes: Merged: https://github.com/ruby/ruby/pull/7629
2023-04-15Add specs for ObjectSpace::WeakKeyMapJean Boussier
[Feature #18498] Notes: Merged: https://github.com/ruby/ruby/pull/7716
2023-03-17ObjectSpace::WeakMap: clean inverse reference when an entry is re-assignedJean Boussier
[Bug #19531] ```ruby wmap[1] = "A" wmap[1] = "B" ``` In the example above, we need to remove the `"A" => 1` inverse reference so that when `"A"` is GCed the `1` key isn't deleted. Notes: Merged: https://github.com/ruby/ruby/pull/7540
2023-03-16Fix incorrect size of WeakMap bufferPeter Zhu
In wmap_final_func, j is the number of elements + 1 (since j also includes the length at the 0th index), so we should resize the buffer to size j and the new length is j - 1. Notes: Merged: https://github.com/ruby/ruby/pull/7536
2023-03-14Fix crash during compactionPeter Zhu
[Bug #19529] The fix for [Bug #19529] in commit 548086b contained a bug that crashes on the following script: ``` wm = ObjectSpace::WeakMap.new obj = Object.new 100.times do wm[Object.new] = obj GC.start end GC.compact ```
2023-03-14ObjectSpace::WeakMap: fix compaction supportJean Boussier
[Bug #19529] `rb_gc_update_tbl_refs` can't be used on `w->obj2wmap` because it's not a `VALUE -> VALUE` table, but a `VALUE -> VALUE *` table, so we need some dedicated iterator. Notes: Merged: https://github.com/ruby/ruby/pull/7518
2023-03-10Mark weak maps as write barrier protectedJean Boussier
For both we mark the lambda finalizer. ObjectSpace::WeakMap doesn't mark any other reference, so we can just add the flag. ObjectSpace::WeakKeyMap only ever add new refs in `wkmap_aset`, so we can just trigger the write barrier there. Notes: Merged: https://github.com/ruby/ruby/pull/7498
2023-03-10Move WeakMap and WeakKeyMap code to weakmap.cPeter Zhu
These classes don't belong in gc.c as they're not actually part of the GC. This commit refactors the code by moving all the code into a weakmap.c file. Notes: Merged: https://github.com/ruby/ruby/pull/7451