Qiskit / qiskit / 10635514148

89%

Build Type

push

github

Committed by web-flow

Commit Message

Add no-hash-lookup way to retrieve the default interned value (#13035)

* Add no-hash-lookup way to retrieve the default interned value

This makes it possible to do `Interner::get_default()` without any
value, in order to retrieve a key pointing to the default allocation
without making any hash lookups.  While the hashing and equality check
of the default allocation is typically very cheap (like the empty
slice), acquiring it still generally required a function call, which
often needed to be paid frequently.

* Add symmetric method on `Interned`

* Tweak documentation wording

Co-authored-by: Kevin Hartman <kevin@hart.mn>

* Re-remove `Interned::of_default` following review

---------

Co-authored-by: Kevin Hartman <kevin@hart.mn>

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18 existing lines in 3 files now uncovered.

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