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45 lines
1.7 KiB
45 lines
1.7 KiB
--- !ditz.rubyforge.org,2008-03-06/issue
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title: free internal enumerator entries as soon as they've been enumerated
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desc: |-
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Currently the internal enumerator holds the entire enumaration sequence
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until the internal enumerator is freed. Because there is no way to
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enumerate a particular sequence twice, the enumerated entries could be
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overwritten with e.g. "undefined" values as the enumeration proceeds,
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generating string free operations steadily instead of as on massive
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chunk as the enumeration finishes.
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type: :task
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component: duk
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release: v0.10
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reporter: sva <sami.vaarala@iki.fi>
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status: :unstarted
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disposition:
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creation_time: 2013-12-17 11:18:51.672163 Z
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references: []
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id: 149481dcf4856c1108d2ef4e17feb2b448fa3dbe
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log_events:
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- - 2013-12-17 11:18:51.864087 Z
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- sva <sami.vaarala@iki.fi>
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- created
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- ""
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- - 2013-12-17 11:19:12.792144 Z
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- sva <sami.vaarala@iki.fi>
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- commented
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- Update hobject-design.txt too.
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- - 2013-12-17 12:45:28.370024 Z
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- sva <sami.vaarala@iki.fi>
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- commented
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- |-
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Actually enumeration goes through the *keys* (not values) of the internal
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enumerator. The keys cannot be replaced with "undefined". They could be
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replaced with NULL, but this would lead to the risk of the keys being
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compacted and the "_next" internal property being incorrect.
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A practical approach would be to replace each key with the empty string as
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soon as it was enumerated. This would create duplicate keys in the entry
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part, however, something that is not normally allowed so it would need
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careful consideration.
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- - 2013-12-19 00:58:14.586414 Z
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- sva <sami.vaarala@iki.fi>
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- assigned to release v0.10 from v0.9
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- ""
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