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smartset: use native set operations as fast paths...

smartset: use native set operations as fast paths For set operations like "&" and "-", where we know both basesets have their sets ready, and the first set is sorted, use the native Python set operations as a fast path. Note: "+" is not optimized as that will break the ordering. This leads to noticeable improvements on performance: revset | before | after | delta ---------------------------------------------------------------- draft() & draft() & draft() & draft() | 776 | 477 | -39% draft() + draft() + draft() + draft() | 2849 | 2864 | draft() - draft() + draft() - draft() | 943 | 240 | -75% draft() - draft() - draft() - draft() | 557 | 197 | -64% (time measured in microseconds)

Martin Geisler - - Load All Authors

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        $ hg init

        $ echo This is file a1 > a

        $ hg add a

        $ hg commit -m "commit #0"

        $ ls

        a

        $ echo This is file b1 > b

        $ hg add b

        $ hg commit -m "commit #1"

        $ hg co 0

        0 files updated, 0 files merged, 1 files removed, 0 files unresolved

      B should disappear

        $ ls

        a

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				$ hg init
				$ echo This is file a1 > a
				$ hg add a
				$ hg commit -m "commit #0"
				$ ls
				a
				$ echo This is file b1 > b
				$ hg add b
				$ hg commit -m "commit #1"
				$ hg co 0
				0 files updated, 0 files merged, 1 files removed, 0 files unresolved

				B should disappear

				$ ls
				a