Update go-pkgz/expirable-cache to version with generics

[paskal]

Instead of assuming the type, it will be set explicitly using generics — no behaviour changes.

[paskal]

@didip please review this one once you'll have a minute, thanks a lot!

[didip]

@paskal per chance, do you notice speed improvements when using the generic version?

[paskal]

v1, currently in use:

~/Desktop/expirable-cache master !2 ❯ go test -bench=.
goos: darwin
goarch: arm64
pkg: github.com/go-pkgz/expirable-cache
BenchmarkLRU_Rand_NoExpire-8     	 4494738	       272.4 ns/op
--- BENCH: BenchmarkLRU_Rand_NoExpire-8
    cache_test.go:46: hit: 0 miss: 1 ratio: 0.000000
    cache_test.go:46: hit: 1 miss: 99 ratio: 0.010000
    cache_test.go:46: hit: 1352 miss: 8648 ratio: 0.135200
    cache_test.go:46: hit: 248678 miss: 751322 ratio: 0.248678
    cache_test.go:46: hit: 1121791 miss: 3372947 ratio: 0.249579
BenchmarkLRU_Freq_NoExpire-8     	 4612648	       261.6 ns/op
--- BENCH: BenchmarkLRU_Freq_NoExpire-8
    cache_test.go:74: hit: 1 miss: 0 ratio: 1.000000
    cache_test.go:74: hit: 100 miss: 0 ratio: 1.000000
    cache_test.go:74: hit: 9825 miss: 175 ratio: 0.982500
    cache_test.go:74: hit: 312345 miss: 687655 ratio: 0.312345
    cache_test.go:74: hit: 1414620 miss: 3198028 ratio: 0.306683
BenchmarkLRU_Rand_WithExpire-8   	 4109704	       286.5 ns/op
--- BENCH: BenchmarkLRU_Rand_WithExpire-8
    cache_test.go:99: hit: 0 miss: 1 ratio: 0.000000
    cache_test.go:99: hit: 0 miss: 100 ratio: 0.000000
    cache_test.go:99: hit: 1304 miss: 8696 ratio: 0.130400
    cache_test.go:99: hit: 248310 miss: 751690 ratio: 0.248310
    cache_test.go:99: hit: 1027317 miss: 3082387 ratio: 0.249973
BenchmarkLRU_Freq_WithExpire-8   	 4341217	       279.6 ns/op
--- BENCH: BenchmarkLRU_Freq_WithExpire-8
    cache_test.go:127: hit: 1 miss: 0 ratio: 1.000000
    cache_test.go:127: hit: 100 miss: 0 ratio: 1.000000
    cache_test.go:127: hit: 9868 miss: 132 ratio: 0.986800
    cache_test.go:127: hit: 38221 miss: 961779 ratio: 0.038221
    cache_test.go:127: hit: 37296 miss: 4303921 ratio: 0.008591
PASS
ok  	github.com/go-pkgz/expirable-cache	18.307s

v3 from this PR:

~/Desktop/expirable-cache/v3 master !2 ❯ go test -bench=.
goos: darwin
goarch: arm64
pkg: github.com/go-pkgz/expirable-cache/v3
BenchmarkLRU_Rand_NoExpire-8     	 7556680	       158.1 ns/op
--- BENCH: BenchmarkLRU_Rand_NoExpire-8
    cache_test.go:47: hit: 0 miss: 1 ratio: 0.000000
    cache_test.go:47: hit: 0 miss: 100 ratio: 0.000000
    cache_test.go:47: hit: 1409 miss: 8591 ratio: 0.140900
    cache_test.go:47: hit: 249063 miss: 750937 ratio: 0.249063
    cache_test.go:47: hit: 1887563 miss: 5669117 ratio: 0.249787
BenchmarkLRU_Freq_NoExpire-8     	 7876738	       150.9 ns/op
--- BENCH: BenchmarkLRU_Freq_NoExpire-8
    cache_test.go:75: hit: 1 miss: 0 ratio: 1.000000
    cache_test.go:75: hit: 100 miss: 0 ratio: 1.000000
    cache_test.go:75: hit: 9850 miss: 150 ratio: 0.985000
    cache_test.go:75: hit: 310888 miss: 689112 ratio: 0.310888
    cache_test.go:75: hit: 2413312 miss: 5463426 ratio: 0.306385
BenchmarkLRU_Rand_WithExpire-8   	 6822362	       175.3 ns/op
--- BENCH: BenchmarkLRU_Rand_WithExpire-8
    cache_test.go:100: hit: 0 miss: 1 ratio: 0.000000
    cache_test.go:100: hit: 0 miss: 100 ratio: 0.000000
    cache_test.go:100: hit: 1326 miss: 8674 ratio: 0.132600
    cache_test.go:100: hit: 248508 miss: 751492 ratio: 0.248508
    cache_test.go:100: hit: 1704172 miss: 5118190 ratio: 0.249792
BenchmarkLRU_Freq_WithExpire-8   	 7098261	       168.1 ns/op
--- BENCH: BenchmarkLRU_Freq_WithExpire-8
    cache_test.go:128: hit: 1 miss: 0 ratio: 1.000000
    cache_test.go:128: hit: 100 miss: 0 ratio: 1.000000
    cache_test.go:128: hit: 9842 miss: 158 ratio: 0.984200
    cache_test.go:128: hit: 90167 miss: 909833 ratio: 0.090167
    cache_test.go:128: hit: 90421 miss: 7007840 ratio: 0.012738
PASS
ok  	github.com/go-pkgz/expirable-cache/v3	24.315s

38-42% faster. I did not expect that to happen and did not measure it before you asked me because I never hit the bottlenecks of cache.

[didip]

Love it! Thank you for benching it!

[paskal]

Thanks for the merge! Feel free to release the new version: v7.0.1...95418ad

[didip]

v7.0.2 is released. https://github.com/didip/tollbooth/tags