mirror of
https://github.com/containers/skopeo.git
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fix(deps): update module github.com/containers/common to v0.59.0
Signed-off-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
This commit is contained in:
renovate[bot]
GitHub
parent
26f6b12a20
commit
25a4f08ee2
go.modgo.sum
vendor
4
go.mod
4
go.mod
@ -8,7 +8,7 @@ toolchain go1.21.0
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require (
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github.com/Masterminds/semver/v3 v3.2.1
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github.com/containers/common v0.58.3
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github.com/containers/common v0.59.0
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github.com/containers/image/v5 v5.31.0
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github.com/containers/ocicrypt v1.1.10
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github.com/containers/storage v1.54.0
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@ -108,7 +108,7 @@ require (
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github.com/sigstore/rekor v1.3.6 // indirect
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github.com/sigstore/sigstore v1.8.3 // indirect
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github.com/skratchdot/open-golang v0.0.0-20200116055534-eef842397966 // indirect
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github.com/stefanberger/go-pkcs11uri v0.0.0-20201008174630-78d3cae3a980 // indirect
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github.com/stefanberger/go-pkcs11uri v0.0.0-20230803200340-78284954bff6 // indirect
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github.com/sylabs/sif/v2 v2.16.0 // indirect
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github.com/tchap/go-patricia/v2 v2.3.1 // indirect
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github.com/titanous/rocacheck v0.0.0-20171023193734-afe73141d399 // indirect
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24
go.sum
24
go.sum
@ -37,8 +37,8 @@ github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
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github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
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github.com/containerd/stargz-snapshotter/estargz v0.15.1 h1:eXJjw9RbkLFgioVaTG+G/ZW/0kEe2oEKCdS/ZxIyoCU=
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github.com/containerd/stargz-snapshotter/estargz v0.15.1/go.mod h1:gr2RNwukQ/S9Nv33Lt6UC7xEx58C+LHRdoqbEKjz1Kk=
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github.com/containers/common v0.58.3 h1:Iy/CdYjluEK926QT+ejonz7YvoRHazeW7BAiLIkmUQ4=
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github.com/containers/common v0.58.3/go.mod h1:p4V1SNk+WOISgp01m+axuqCUxaDP3WSZPPzvnJnS/cQ=
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github.com/containers/common v0.59.0 h1:fy9Jz0B7Qs1C030bm73YJtVddaiFSZD3558EV1tgN2g=
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github.com/containers/common v0.59.0/go.mod h1:53VicJCZ2AD0O+Br7VVoyrS7viXF4YmwlTIocWUT8XE=
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github.com/containers/image/v5 v5.31.0 h1:eDFVlz5XaYICxe9dXpf23htEKvyosgkl62mJlIATXE4=
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github.com/containers/image/v5 v5.31.0/go.mod h1:5QfOqSackPkSbF7Qxc1DnVNnPJKQ+KWLkfEfDpK590Q=
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github.com/containers/libtrust v0.0.0-20230121012942-c1716e8a8d01 h1:Qzk5C6cYglewc+UyGf6lc8Mj2UaPTHy/iF2De0/77CA=
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@ -116,8 +116,8 @@ github.com/go-openapi/validate v0.24.0 h1:LdfDKwNbpB6Vn40xhTdNZAnfLECL81w+VX3Bum
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github.com/go-openapi/validate v0.24.0/go.mod h1:iyeX1sEufmv3nPbBdX3ieNviWnOZaJ1+zquzJEf2BAQ=
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github.com/go-rod/rod v0.114.7 h1:h4pimzSOUnw7Eo41zdJA788XsawzHjJMyzCE3BrBww0=
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github.com/go-rod/rod v0.114.7/go.mod h1:aiedSEFg5DwG/fnNbUOTPMTTWX3MRj6vIs/a684Mthw=
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github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
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github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
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github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI=
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github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
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github.com/go-test/deep v1.1.0 h1:WOcxcdHcvdgThNXjw0t76K42FXTU7HpNQWHpA2HHNlg=
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github.com/go-test/deep v1.1.0/go.mod h1:5C2ZWiW0ErCdrYzpqxLbTX7MG14M9iiw8DgHncVwcsE=
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github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
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@ -153,8 +153,8 @@ github.com/google/go-containerregistry v0.19.1/go.mod h1:YCMFNQeeXeLF+dnhhWkqDIt
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github.com/google/go-intervals v0.0.2 h1:FGrVEiUnTRKR8yE04qzXYaJMtnIYqobR5QbblK3ixcM=
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github.com/google/go-intervals v0.0.2/go.mod h1:MkaR3LNRfeKLPmqgJYs4E66z5InYjmCjbbr4TQlcT6Y=
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github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
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github.com/google/pprof v0.0.0-20231023181126-ff6d637d2a7b h1:RMpPgZTSApbPf7xaVel+QkoGPRLFLrwFO89uDUHEGf0=
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github.com/google/pprof v0.0.0-20231023181126-ff6d637d2a7b/go.mod h1:czg5+yv1E0ZGTi6S6vVK1mke0fV+FaUhNGcd6VRS9Ik=
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github.com/google/pprof v0.0.0-20240424215950-a892ee059fd6 h1:k7nVchz72niMH6YLQNvHSdIE7iqsQxK1P41mySCvssg=
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github.com/google/pprof v0.0.0-20240424215950-a892ee059fd6/go.mod h1:kf6iHlnVGwgKolg33glAes7Yg/8iWP8ukqeldJSO7jw=
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github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/google/uuid v1.2.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
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github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
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@ -229,10 +229,10 @@ github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A=
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github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7PXmsc=
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github.com/oklog/ulid v1.3.1 h1:EGfNDEx6MqHz8B3uNV6QAib1UR2Lm97sHi3ocA6ESJ4=
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github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
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github.com/onsi/ginkgo/v2 v2.14.0 h1:vSmGj2Z5YPb9JwCWT6z6ihcUvDhuXLc3sJiqd3jMKAY=
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github.com/onsi/ginkgo/v2 v2.14.0/go.mod h1:JkUdW7JkN0V6rFvsHcJ478egV3XH9NxpD27Hal/PhZw=
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github.com/onsi/gomega v1.30.0 h1:hvMK7xYz4D3HapigLTeGdId/NcfQx1VHMJc60ew99+8=
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github.com/onsi/gomega v1.30.0/go.mod h1:9sxs+SwGrKI0+PWe4Fxa9tFQQBG5xSsSbMXOI8PPpoQ=
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github.com/onsi/ginkgo/v2 v2.18.0 h1:W9Y7IWXxPUpAit9ieMOLI7PJZGaW22DTKgiVAuhDTLc=
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github.com/onsi/ginkgo/v2 v2.18.0/go.mod h1:rlwLi9PilAFJ8jCg9UE1QP6VBpd6/xj3SRC0d6TU0To=
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github.com/onsi/gomega v1.33.1 h1:dsYjIxxSR755MDmKVsaFQTE22ChNBcuuTWgkUDSubOk=
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github.com/onsi/gomega v1.33.1/go.mod h1:U4R44UsT+9eLIaYRB2a5qajjtQYn0hauxvRm16AVYg0=
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github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
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github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
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github.com/opencontainers/image-spec v1.1.0 h1:8SG7/vwALn54lVB/0yZ/MMwhFrPYtpEHQb2IpWsCzug=
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@ -295,8 +295,8 @@ github.com/spf13/cobra v1.8.0 h1:7aJaZx1B85qltLMc546zn58BxxfZdR/W22ej9CFoEf0=
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github.com/spf13/cobra v1.8.0/go.mod h1:WXLWApfZ71AjXPya3WOlMsY9yMs7YeiHhFVlvLyhcho=
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github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
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github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
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github.com/stefanberger/go-pkcs11uri v0.0.0-20201008174630-78d3cae3a980 h1:lIOOHPEbXzO3vnmx2gok1Tfs31Q8GQqKLc8vVqyQq/I=
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github.com/stefanberger/go-pkcs11uri v0.0.0-20201008174630-78d3cae3a980/go.mod h1:AO3tvPzVZ/ayst6UlUKUv6rcPQInYe3IknH3jYhAKu8=
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github.com/stefanberger/go-pkcs11uri v0.0.0-20230803200340-78284954bff6 h1:pnnLyeX7o/5aX8qUQ69P/mLojDqwda8hFOCBTmP/6hw=
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github.com/stefanberger/go-pkcs11uri v0.0.0-20230803200340-78284954bff6/go.mod h1:39R/xuhNgVhi+K0/zst4TLrJrVmbm6LVgl4A0+ZFS5M=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
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github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=
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3
vendor/github.com/containers/common/pkg/auth/auth.go
generated
vendored
3
vendor/github.com/containers/common/pkg/auth/auth.go
generated
vendored
@ -16,6 +16,7 @@ import (
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"github.com/containers/image/v5/pkg/docker/config"
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"github.com/containers/image/v5/pkg/sysregistriesv2"
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"github.com/containers/image/v5/types"
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"github.com/containers/storage/pkg/fileutils"
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"github.com/containers/storage/pkg/homedir"
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"github.com/sirupsen/logrus"
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)
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@ -69,7 +70,7 @@ func CheckAuthFile(pathOption string) error {
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if pathOption == "" {
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return nil
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}
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if _, err := os.Stat(pathOption); err != nil {
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if err := fileutils.Exists(pathOption); err != nil {
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return fmt.Errorf("credential file is not accessible: %w", err)
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}
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return nil
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2
vendor/github.com/containers/common/pkg/capabilities/capabilities.go
generated
vendored
2
vendor/github.com/containers/common/pkg/capabilities/capabilities.go
generated
vendored
@ -8,12 +8,12 @@ package capabilities
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import (
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"errors"
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"fmt"
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"slices"
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"sort"
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"strings"
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"sync"
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"github.com/syndtr/gocapability/capability"
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"golang.org/x/exp/slices"
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)
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var (
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4
vendor/github.com/stefanberger/go-pkcs11uri/.travis.yml
generated
vendored
4
vendor/github.com/stefanberger/go-pkcs11uri/.travis.yml
generated
vendored
@ -5,7 +5,7 @@ os:
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- linux
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go:
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- "1.13.x"
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- "1.19.x"
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matrix:
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include:
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@ -17,7 +17,7 @@ addons:
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- softhsm2
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install:
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- curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh -s -- -b $(go env GOPATH)/bin v1.30.0
|
||||
- curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh | sh -s -- -b $(go env GOPATH)/bin v1.53.2
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|
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script:
|
||||
- make
|
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|
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37
vendor/github.com/stefanberger/go-pkcs11uri/pkcs11uri.go
generated
vendored
37
vendor/github.com/stefanberger/go-pkcs11uri/pkcs11uri.go
generated
vendored
@ -19,7 +19,6 @@ package pkcs11uri
|
||||
import (
|
||||
"errors"
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||||
"fmt"
|
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"io/ioutil"
|
||||
"net/url"
|
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"os"
|
||||
"path/filepath"
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@ -128,6 +127,12 @@ func (uri *Pkcs11URI) SetPathAttribute(name, value string) error {
|
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return uri.setAttribute(uri.pathAttributes, name, value)
|
||||
}
|
||||
|
||||
// SetPathAttributeUnencoded sets the value for a path attribute given as byte[].
|
||||
// The value must not have been pct-encoded already.
|
||||
func (uri *Pkcs11URI) SetPathAttributeUnencoded(name string, value []byte) {
|
||||
uri.pathAttributes[name] = string(value)
|
||||
}
|
||||
|
||||
// AddPathAttribute adds a path attribute; it returns an error if an attribute with the same
|
||||
// name already existed or if the given value cannot be pct-unescaped
|
||||
func (uri *Pkcs11URI) AddPathAttribute(name, value string) error {
|
||||
@ -137,6 +142,16 @@ func (uri *Pkcs11URI) AddPathAttribute(name, value string) error {
|
||||
return uri.SetPathAttribute(name, value)
|
||||
}
|
||||
|
||||
// AddPathAttributeUnencoded adds a path attribute given as byte[] which must not already be pct-encoded;
|
||||
// it returns an error if an attribute with the same name already existed
|
||||
func (uri *Pkcs11URI) AddPathAttributeUnencoded(name string, value []byte) error {
|
||||
if _, ok := uri.pathAttributes[name]; ok {
|
||||
return errors.New("duplicate path attribute")
|
||||
}
|
||||
uri.SetPathAttributeUnencoded(name, value)
|
||||
return nil
|
||||
}
|
||||
|
||||
// RemovePathAttribute removes a path attribute
|
||||
func (uri *Pkcs11URI) RemovePathAttribute(name string) {
|
||||
delete(uri.pathAttributes, name)
|
||||
@ -173,6 +188,12 @@ func (uri *Pkcs11URI) SetQueryAttribute(name, value string) error {
|
||||
return uri.setAttribute(uri.queryAttributes, name, value)
|
||||
}
|
||||
|
||||
// SetQueryAttributeUnencoded sets the value for a quiery attribute given as byte[].
|
||||
// The value must not have been pct-encoded already.
|
||||
func (uri *Pkcs11URI) SetQueryAttributeUnencoded(name string, value []byte) {
|
||||
uri.queryAttributes[name] = string(value)
|
||||
}
|
||||
|
||||
// AddQueryAttribute adds a query attribute; it returns an error if an attribute with the same
|
||||
// name already existed or if the given value cannot be pct-unescaped
|
||||
func (uri *Pkcs11URI) AddQueryAttribute(name, value string) error {
|
||||
@ -182,6 +203,16 @@ func (uri *Pkcs11URI) AddQueryAttribute(name, value string) error {
|
||||
return uri.SetQueryAttribute(name, value)
|
||||
}
|
||||
|
||||
// AddQueryAttributeUnencoded adds a query attribute given as byte[] which must not already be pct-encoded;
|
||||
// it returns an error if an attribute with the same name already existed
|
||||
func (uri *Pkcs11URI) AddQueryAttributeUnencoded(name string, value []byte) error {
|
||||
if _, ok := uri.queryAttributes[name]; ok {
|
||||
return errors.New("duplicate query attribute")
|
||||
}
|
||||
uri.SetQueryAttributeUnencoded(name, value)
|
||||
return nil
|
||||
}
|
||||
|
||||
// RemoveQueryAttribute removes a path attribute
|
||||
func (uri *Pkcs11URI) RemoveQueryAttribute(name string) {
|
||||
delete(uri.queryAttributes, name)
|
||||
@ -257,7 +288,7 @@ func (uri *Pkcs11URI) GetPIN() (string, error) {
|
||||
if !filepath.IsAbs(pinuri.Path) {
|
||||
return "", fmt.Errorf("PIN URI path '%s' is not absolute", pinuri.Path)
|
||||
}
|
||||
pin, err := ioutil.ReadFile(pinuri.Path)
|
||||
pin, err := os.ReadFile(pinuri.Path)
|
||||
if err != nil {
|
||||
return "", fmt.Errorf("Could not open PIN file: %s", err)
|
||||
}
|
||||
@ -426,7 +457,7 @@ func (uri *Pkcs11URI) GetModule() (string, error) {
|
||||
moduleName = strings.ToLower(moduleName)
|
||||
|
||||
for _, dir := range searchdirs {
|
||||
files, err := ioutil.ReadDir(dir)
|
||||
files, err := os.ReadDir(dir)
|
||||
if err != nil {
|
||||
continue
|
||||
}
|
||||
|
||||
50
vendor/golang.org/x/exp/constraints/constraints.go
generated
vendored
50
vendor/golang.org/x/exp/constraints/constraints.go
generated
vendored
@ -1,50 +0,0 @@
|
||||
// Copyright 2021 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package constraints defines a set of useful constraints to be used
|
||||
// with type parameters.
|
||||
package constraints
|
||||
|
||||
// Signed is a constraint that permits any signed integer type.
|
||||
// If future releases of Go add new predeclared signed integer types,
|
||||
// this constraint will be modified to include them.
|
||||
type Signed interface {
|
||||
~int | ~int8 | ~int16 | ~int32 | ~int64
|
||||
}
|
||||
|
||||
// Unsigned is a constraint that permits any unsigned integer type.
|
||||
// If future releases of Go add new predeclared unsigned integer types,
|
||||
// this constraint will be modified to include them.
|
||||
type Unsigned interface {
|
||||
~uint | ~uint8 | ~uint16 | ~uint32 | ~uint64 | ~uintptr
|
||||
}
|
||||
|
||||
// Integer is a constraint that permits any integer type.
|
||||
// If future releases of Go add new predeclared integer types,
|
||||
// this constraint will be modified to include them.
|
||||
type Integer interface {
|
||||
Signed | Unsigned
|
||||
}
|
||||
|
||||
// Float is a constraint that permits any floating-point type.
|
||||
// If future releases of Go add new predeclared floating-point types,
|
||||
// this constraint will be modified to include them.
|
||||
type Float interface {
|
||||
~float32 | ~float64
|
||||
}
|
||||
|
||||
// Complex is a constraint that permits any complex numeric type.
|
||||
// If future releases of Go add new predeclared complex numeric types,
|
||||
// this constraint will be modified to include them.
|
||||
type Complex interface {
|
||||
~complex64 | ~complex128
|
||||
}
|
||||
|
||||
// Ordered is a constraint that permits any ordered type: any type
|
||||
// that supports the operators < <= >= >.
|
||||
// If future releases of Go add new ordered types,
|
||||
// this constraint will be modified to include them.
|
||||
type Ordered interface {
|
||||
Integer | Float | ~string
|
||||
}
|
||||
44
vendor/golang.org/x/exp/slices/cmp.go
generated
vendored
44
vendor/golang.org/x/exp/slices/cmp.go
generated
vendored
@ -1,44 +0,0 @@
|
||||
// Copyright 2023 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package slices
|
||||
|
||||
import "golang.org/x/exp/constraints"
|
||||
|
||||
// min is a version of the predeclared function from the Go 1.21 release.
|
||||
func min[T constraints.Ordered](a, b T) T {
|
||||
if a < b || isNaN(a) {
|
||||
return a
|
||||
}
|
||||
return b
|
||||
}
|
||||
|
||||
// max is a version of the predeclared function from the Go 1.21 release.
|
||||
func max[T constraints.Ordered](a, b T) T {
|
||||
if a > b || isNaN(a) {
|
||||
return a
|
||||
}
|
||||
return b
|
||||
}
|
||||
|
||||
// cmpLess is a copy of cmp.Less from the Go 1.21 release.
|
||||
func cmpLess[T constraints.Ordered](x, y T) bool {
|
||||
return (isNaN(x) && !isNaN(y)) || x < y
|
||||
}
|
||||
|
||||
// cmpCompare is a copy of cmp.Compare from the Go 1.21 release.
|
||||
func cmpCompare[T constraints.Ordered](x, y T) int {
|
||||
xNaN := isNaN(x)
|
||||
yNaN := isNaN(y)
|
||||
if xNaN && yNaN {
|
||||
return 0
|
||||
}
|
||||
if xNaN || x < y {
|
||||
return -1
|
||||
}
|
||||
if yNaN || x > y {
|
||||
return +1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
515
vendor/golang.org/x/exp/slices/slices.go
generated
vendored
515
vendor/golang.org/x/exp/slices/slices.go
generated
vendored
@ -1,515 +0,0 @@
|
||||
// Copyright 2021 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
// Package slices defines various functions useful with slices of any type.
|
||||
package slices
|
||||
|
||||
import (
|
||||
"unsafe"
|
||||
|
||||
"golang.org/x/exp/constraints"
|
||||
)
|
||||
|
||||
// Equal reports whether two slices are equal: the same length and all
|
||||
// elements equal. If the lengths are different, Equal returns false.
|
||||
// Otherwise, the elements are compared in increasing index order, and the
|
||||
// comparison stops at the first unequal pair.
|
||||
// Floating point NaNs are not considered equal.
|
||||
func Equal[S ~[]E, E comparable](s1, s2 S) bool {
|
||||
if len(s1) != len(s2) {
|
||||
return false
|
||||
}
|
||||
for i := range s1 {
|
||||
if s1[i] != s2[i] {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// EqualFunc reports whether two slices are equal using an equality
|
||||
// function on each pair of elements. If the lengths are different,
|
||||
// EqualFunc returns false. Otherwise, the elements are compared in
|
||||
// increasing index order, and the comparison stops at the first index
|
||||
// for which eq returns false.
|
||||
func EqualFunc[S1 ~[]E1, S2 ~[]E2, E1, E2 any](s1 S1, s2 S2, eq func(E1, E2) bool) bool {
|
||||
if len(s1) != len(s2) {
|
||||
return false
|
||||
}
|
||||
for i, v1 := range s1 {
|
||||
v2 := s2[i]
|
||||
if !eq(v1, v2) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Compare compares the elements of s1 and s2, using [cmp.Compare] on each pair
|
||||
// of elements. The elements are compared sequentially, starting at index 0,
|
||||
// until one element is not equal to the other.
|
||||
// The result of comparing the first non-matching elements is returned.
|
||||
// If both slices are equal until one of them ends, the shorter slice is
|
||||
// considered less than the longer one.
|
||||
// The result is 0 if s1 == s2, -1 if s1 < s2, and +1 if s1 > s2.
|
||||
func Compare[S ~[]E, E constraints.Ordered](s1, s2 S) int {
|
||||
for i, v1 := range s1 {
|
||||
if i >= len(s2) {
|
||||
return +1
|
||||
}
|
||||
v2 := s2[i]
|
||||
if c := cmpCompare(v1, v2); c != 0 {
|
||||
return c
|
||||
}
|
||||
}
|
||||
if len(s1) < len(s2) {
|
||||
return -1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// CompareFunc is like [Compare] but uses a custom comparison function on each
|
||||
// pair of elements.
|
||||
// The result is the first non-zero result of cmp; if cmp always
|
||||
// returns 0 the result is 0 if len(s1) == len(s2), -1 if len(s1) < len(s2),
|
||||
// and +1 if len(s1) > len(s2).
|
||||
func CompareFunc[S1 ~[]E1, S2 ~[]E2, E1, E2 any](s1 S1, s2 S2, cmp func(E1, E2) int) int {
|
||||
for i, v1 := range s1 {
|
||||
if i >= len(s2) {
|
||||
return +1
|
||||
}
|
||||
v2 := s2[i]
|
||||
if c := cmp(v1, v2); c != 0 {
|
||||
return c
|
||||
}
|
||||
}
|
||||
if len(s1) < len(s2) {
|
||||
return -1
|
||||
}
|
||||
return 0
|
||||
}
|
||||
|
||||
// Index returns the index of the first occurrence of v in s,
|
||||
// or -1 if not present.
|
||||
func Index[S ~[]E, E comparable](s S, v E) int {
|
||||
for i := range s {
|
||||
if v == s[i] {
|
||||
return i
|
||||
}
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
// IndexFunc returns the first index i satisfying f(s[i]),
|
||||
// or -1 if none do.
|
||||
func IndexFunc[S ~[]E, E any](s S, f func(E) bool) int {
|
||||
for i := range s {
|
||||
if f(s[i]) {
|
||||
return i
|
||||
}
|
||||
}
|
||||
return -1
|
||||
}
|
||||
|
||||
// Contains reports whether v is present in s.
|
||||
func Contains[S ~[]E, E comparable](s S, v E) bool {
|
||||
return Index(s, v) >= 0
|
||||
}
|
||||
|
||||
// ContainsFunc reports whether at least one
|
||||
// element e of s satisfies f(e).
|
||||
func ContainsFunc[S ~[]E, E any](s S, f func(E) bool) bool {
|
||||
return IndexFunc(s, f) >= 0
|
||||
}
|
||||
|
||||
// Insert inserts the values v... into s at index i,
|
||||
// returning the modified slice.
|
||||
// The elements at s[i:] are shifted up to make room.
|
||||
// In the returned slice r, r[i] == v[0],
|
||||
// and r[i+len(v)] == value originally at r[i].
|
||||
// Insert panics if i is out of range.
|
||||
// This function is O(len(s) + len(v)).
|
||||
func Insert[S ~[]E, E any](s S, i int, v ...E) S {
|
||||
m := len(v)
|
||||
if m == 0 {
|
||||
return s
|
||||
}
|
||||
n := len(s)
|
||||
if i == n {
|
||||
return append(s, v...)
|
||||
}
|
||||
if n+m > cap(s) {
|
||||
// Use append rather than make so that we bump the size of
|
||||
// the slice up to the next storage class.
|
||||
// This is what Grow does but we don't call Grow because
|
||||
// that might copy the values twice.
|
||||
s2 := append(s[:i], make(S, n+m-i)...)
|
||||
copy(s2[i:], v)
|
||||
copy(s2[i+m:], s[i:])
|
||||
return s2
|
||||
}
|
||||
s = s[:n+m]
|
||||
|
||||
// before:
|
||||
// s: aaaaaaaabbbbccccccccdddd
|
||||
// ^ ^ ^ ^
|
||||
// i i+m n n+m
|
||||
// after:
|
||||
// s: aaaaaaaavvvvbbbbcccccccc
|
||||
// ^ ^ ^ ^
|
||||
// i i+m n n+m
|
||||
//
|
||||
// a are the values that don't move in s.
|
||||
// v are the values copied in from v.
|
||||
// b and c are the values from s that are shifted up in index.
|
||||
// d are the values that get overwritten, never to be seen again.
|
||||
|
||||
if !overlaps(v, s[i+m:]) {
|
||||
// Easy case - v does not overlap either the c or d regions.
|
||||
// (It might be in some of a or b, or elsewhere entirely.)
|
||||
// The data we copy up doesn't write to v at all, so just do it.
|
||||
|
||||
copy(s[i+m:], s[i:])
|
||||
|
||||
// Now we have
|
||||
// s: aaaaaaaabbbbbbbbcccccccc
|
||||
// ^ ^ ^ ^
|
||||
// i i+m n n+m
|
||||
// Note the b values are duplicated.
|
||||
|
||||
copy(s[i:], v)
|
||||
|
||||
// Now we have
|
||||
// s: aaaaaaaavvvvbbbbcccccccc
|
||||
// ^ ^ ^ ^
|
||||
// i i+m n n+m
|
||||
// That's the result we want.
|
||||
return s
|
||||
}
|
||||
|
||||
// The hard case - v overlaps c or d. We can't just shift up
|
||||
// the data because we'd move or clobber the values we're trying
|
||||
// to insert.
|
||||
// So instead, write v on top of d, then rotate.
|
||||
copy(s[n:], v)
|
||||
|
||||
// Now we have
|
||||
// s: aaaaaaaabbbbccccccccvvvv
|
||||
// ^ ^ ^ ^
|
||||
// i i+m n n+m
|
||||
|
||||
rotateRight(s[i:], m)
|
||||
|
||||
// Now we have
|
||||
// s: aaaaaaaavvvvbbbbcccccccc
|
||||
// ^ ^ ^ ^
|
||||
// i i+m n n+m
|
||||
// That's the result we want.
|
||||
return s
|
||||
}
|
||||
|
||||
// clearSlice sets all elements up to the length of s to the zero value of E.
|
||||
// We may use the builtin clear func instead, and remove clearSlice, when upgrading
|
||||
// to Go 1.21+.
|
||||
func clearSlice[S ~[]E, E any](s S) {
|
||||
var zero E
|
||||
for i := range s {
|
||||
s[i] = zero
|
||||
}
|
||||
}
|
||||
|
||||
// Delete removes the elements s[i:j] from s, returning the modified slice.
|
||||
// Delete panics if j > len(s) or s[i:j] is not a valid slice of s.
|
||||
// Delete is O(len(s)-i), so if many items must be deleted, it is better to
|
||||
// make a single call deleting them all together than to delete one at a time.
|
||||
// Delete zeroes the elements s[len(s)-(j-i):len(s)].
|
||||
func Delete[S ~[]E, E any](s S, i, j int) S {
|
||||
_ = s[i:j:len(s)] // bounds check
|
||||
|
||||
if i == j {
|
||||
return s
|
||||
}
|
||||
|
||||
oldlen := len(s)
|
||||
s = append(s[:i], s[j:]...)
|
||||
clearSlice(s[len(s):oldlen]) // zero/nil out the obsolete elements, for GC
|
||||
return s
|
||||
}
|
||||
|
||||
// DeleteFunc removes any elements from s for which del returns true,
|
||||
// returning the modified slice.
|
||||
// DeleteFunc zeroes the elements between the new length and the original length.
|
||||
func DeleteFunc[S ~[]E, E any](s S, del func(E) bool) S {
|
||||
i := IndexFunc(s, del)
|
||||
if i == -1 {
|
||||
return s
|
||||
}
|
||||
// Don't start copying elements until we find one to delete.
|
||||
for j := i + 1; j < len(s); j++ {
|
||||
if v := s[j]; !del(v) {
|
||||
s[i] = v
|
||||
i++
|
||||
}
|
||||
}
|
||||
clearSlice(s[i:]) // zero/nil out the obsolete elements, for GC
|
||||
return s[:i]
|
||||
}
|
||||
|
||||
// Replace replaces the elements s[i:j] by the given v, and returns the
|
||||
// modified slice. Replace panics if s[i:j] is not a valid slice of s.
|
||||
// When len(v) < (j-i), Replace zeroes the elements between the new length and the original length.
|
||||
func Replace[S ~[]E, E any](s S, i, j int, v ...E) S {
|
||||
_ = s[i:j] // verify that i:j is a valid subslice
|
||||
|
||||
if i == j {
|
||||
return Insert(s, i, v...)
|
||||
}
|
||||
if j == len(s) {
|
||||
return append(s[:i], v...)
|
||||
}
|
||||
|
||||
tot := len(s[:i]) + len(v) + len(s[j:])
|
||||
if tot > cap(s) {
|
||||
// Too big to fit, allocate and copy over.
|
||||
s2 := append(s[:i], make(S, tot-i)...) // See Insert
|
||||
copy(s2[i:], v)
|
||||
copy(s2[i+len(v):], s[j:])
|
||||
return s2
|
||||
}
|
||||
|
||||
r := s[:tot]
|
||||
|
||||
if i+len(v) <= j {
|
||||
// Easy, as v fits in the deleted portion.
|
||||
copy(r[i:], v)
|
||||
if i+len(v) != j {
|
||||
copy(r[i+len(v):], s[j:])
|
||||
}
|
||||
clearSlice(s[tot:]) // zero/nil out the obsolete elements, for GC
|
||||
return r
|
||||
}
|
||||
|
||||
// We are expanding (v is bigger than j-i).
|
||||
// The situation is something like this:
|
||||
// (example has i=4,j=8,len(s)=16,len(v)=6)
|
||||
// s: aaaaxxxxbbbbbbbbyy
|
||||
// ^ ^ ^ ^
|
||||
// i j len(s) tot
|
||||
// a: prefix of s
|
||||
// x: deleted range
|
||||
// b: more of s
|
||||
// y: area to expand into
|
||||
|
||||
if !overlaps(r[i+len(v):], v) {
|
||||
// Easy, as v is not clobbered by the first copy.
|
||||
copy(r[i+len(v):], s[j:])
|
||||
copy(r[i:], v)
|
||||
return r
|
||||
}
|
||||
|
||||
// This is a situation where we don't have a single place to which
|
||||
// we can copy v. Parts of it need to go to two different places.
|
||||
// We want to copy the prefix of v into y and the suffix into x, then
|
||||
// rotate |y| spots to the right.
|
||||
//
|
||||
// v[2:] v[:2]
|
||||
// | |
|
||||
// s: aaaavvvvbbbbbbbbvv
|
||||
// ^ ^ ^ ^
|
||||
// i j len(s) tot
|
||||
//
|
||||
// If either of those two destinations don't alias v, then we're good.
|
||||
y := len(v) - (j - i) // length of y portion
|
||||
|
||||
if !overlaps(r[i:j], v) {
|
||||
copy(r[i:j], v[y:])
|
||||
copy(r[len(s):], v[:y])
|
||||
rotateRight(r[i:], y)
|
||||
return r
|
||||
}
|
||||
if !overlaps(r[len(s):], v) {
|
||||
copy(r[len(s):], v[:y])
|
||||
copy(r[i:j], v[y:])
|
||||
rotateRight(r[i:], y)
|
||||
return r
|
||||
}
|
||||
|
||||
// Now we know that v overlaps both x and y.
|
||||
// That means that the entirety of b is *inside* v.
|
||||
// So we don't need to preserve b at all; instead we
|
||||
// can copy v first, then copy the b part of v out of
|
||||
// v to the right destination.
|
||||
k := startIdx(v, s[j:])
|
||||
copy(r[i:], v)
|
||||
copy(r[i+len(v):], r[i+k:])
|
||||
return r
|
||||
}
|
||||
|
||||
// Clone returns a copy of the slice.
|
||||
// The elements are copied using assignment, so this is a shallow clone.
|
||||
func Clone[S ~[]E, E any](s S) S {
|
||||
// Preserve nil in case it matters.
|
||||
if s == nil {
|
||||
return nil
|
||||
}
|
||||
return append(S([]E{}), s...)
|
||||
}
|
||||
|
||||
// Compact replaces consecutive runs of equal elements with a single copy.
|
||||
// This is like the uniq command found on Unix.
|
||||
// Compact modifies the contents of the slice s and returns the modified slice,
|
||||
// which may have a smaller length.
|
||||
// Compact zeroes the elements between the new length and the original length.
|
||||
func Compact[S ~[]E, E comparable](s S) S {
|
||||
if len(s) < 2 {
|
||||
return s
|
||||
}
|
||||
i := 1
|
||||
for k := 1; k < len(s); k++ {
|
||||
if s[k] != s[k-1] {
|
||||
if i != k {
|
||||
s[i] = s[k]
|
||||
}
|
||||
i++
|
||||
}
|
||||
}
|
||||
clearSlice(s[i:]) // zero/nil out the obsolete elements, for GC
|
||||
return s[:i]
|
||||
}
|
||||
|
||||
// CompactFunc is like [Compact] but uses an equality function to compare elements.
|
||||
// For runs of elements that compare equal, CompactFunc keeps the first one.
|
||||
// CompactFunc zeroes the elements between the new length and the original length.
|
||||
func CompactFunc[S ~[]E, E any](s S, eq func(E, E) bool) S {
|
||||
if len(s) < 2 {
|
||||
return s
|
||||
}
|
||||
i := 1
|
||||
for k := 1; k < len(s); k++ {
|
||||
if !eq(s[k], s[k-1]) {
|
||||
if i != k {
|
||||
s[i] = s[k]
|
||||
}
|
||||
i++
|
||||
}
|
||||
}
|
||||
clearSlice(s[i:]) // zero/nil out the obsolete elements, for GC
|
||||
return s[:i]
|
||||
}
|
||||
|
||||
// Grow increases the slice's capacity, if necessary, to guarantee space for
|
||||
// another n elements. After Grow(n), at least n elements can be appended
|
||||
// to the slice without another allocation. If n is negative or too large to
|
||||
// allocate the memory, Grow panics.
|
||||
func Grow[S ~[]E, E any](s S, n int) S {
|
||||
if n < 0 {
|
||||
panic("cannot be negative")
|
||||
}
|
||||
if n -= cap(s) - len(s); n > 0 {
|
||||
// TODO(https://go.dev/issue/53888): Make using []E instead of S
|
||||
// to workaround a compiler bug where the runtime.growslice optimization
|
||||
// does not take effect. Revert when the compiler is fixed.
|
||||
s = append([]E(s)[:cap(s)], make([]E, n)...)[:len(s)]
|
||||
}
|
||||
return s
|
||||
}
|
||||
|
||||
// Clip removes unused capacity from the slice, returning s[:len(s):len(s)].
|
||||
func Clip[S ~[]E, E any](s S) S {
|
||||
return s[:len(s):len(s)]
|
||||
}
|
||||
|
||||
// Rotation algorithm explanation:
|
||||
//
|
||||
// rotate left by 2
|
||||
// start with
|
||||
// 0123456789
|
||||
// split up like this
|
||||
// 01 234567 89
|
||||
// swap first 2 and last 2
|
||||
// 89 234567 01
|
||||
// join first parts
|
||||
// 89234567 01
|
||||
// recursively rotate first left part by 2
|
||||
// 23456789 01
|
||||
// join at the end
|
||||
// 2345678901
|
||||
//
|
||||
// rotate left by 8
|
||||
// start with
|
||||
// 0123456789
|
||||
// split up like this
|
||||
// 01 234567 89
|
||||
// swap first 2 and last 2
|
||||
// 89 234567 01
|
||||
// join last parts
|
||||
// 89 23456701
|
||||
// recursively rotate second part left by 6
|
||||
// 89 01234567
|
||||
// join at the end
|
||||
// 8901234567
|
||||
|
||||
// TODO: There are other rotate algorithms.
|
||||
// This algorithm has the desirable property that it moves each element exactly twice.
|
||||
// The triple-reverse algorithm is simpler and more cache friendly, but takes more writes.
|
||||
// The follow-cycles algorithm can be 1-write but it is not very cache friendly.
|
||||
|
||||
// rotateLeft rotates b left by n spaces.
|
||||
// s_final[i] = s_orig[i+r], wrapping around.
|
||||
func rotateLeft[E any](s []E, r int) {
|
||||
for r != 0 && r != len(s) {
|
||||
if r*2 <= len(s) {
|
||||
swap(s[:r], s[len(s)-r:])
|
||||
s = s[:len(s)-r]
|
||||
} else {
|
||||
swap(s[:len(s)-r], s[r:])
|
||||
s, r = s[len(s)-r:], r*2-len(s)
|
||||
}
|
||||
}
|
||||
}
|
||||
func rotateRight[E any](s []E, r int) {
|
||||
rotateLeft(s, len(s)-r)
|
||||
}
|
||||
|
||||
// swap swaps the contents of x and y. x and y must be equal length and disjoint.
|
||||
func swap[E any](x, y []E) {
|
||||
for i := 0; i < len(x); i++ {
|
||||
x[i], y[i] = y[i], x[i]
|
||||
}
|
||||
}
|
||||
|
||||
// overlaps reports whether the memory ranges a[0:len(a)] and b[0:len(b)] overlap.
|
||||
func overlaps[E any](a, b []E) bool {
|
||||
if len(a) == 0 || len(b) == 0 {
|
||||
return false
|
||||
}
|
||||
elemSize := unsafe.Sizeof(a[0])
|
||||
if elemSize == 0 {
|
||||
return false
|
||||
}
|
||||
// TODO: use a runtime/unsafe facility once one becomes available. See issue 12445.
|
||||
// Also see crypto/internal/alias/alias.go:AnyOverlap
|
||||
return uintptr(unsafe.Pointer(&a[0])) <= uintptr(unsafe.Pointer(&b[len(b)-1]))+(elemSize-1) &&
|
||||
uintptr(unsafe.Pointer(&b[0])) <= uintptr(unsafe.Pointer(&a[len(a)-1]))+(elemSize-1)
|
||||
}
|
||||
|
||||
// startIdx returns the index in haystack where the needle starts.
|
||||
// prerequisite: the needle must be aliased entirely inside the haystack.
|
||||
func startIdx[E any](haystack, needle []E) int {
|
||||
p := &needle[0]
|
||||
for i := range haystack {
|
||||
if p == &haystack[i] {
|
||||
return i
|
||||
}
|
||||
}
|
||||
// TODO: what if the overlap is by a non-integral number of Es?
|
||||
panic("needle not found")
|
||||
}
|
||||
|
||||
// Reverse reverses the elements of the slice in place.
|
||||
func Reverse[S ~[]E, E any](s S) {
|
||||
for i, j := 0, len(s)-1; i < j; i, j = i+1, j-1 {
|
||||
s[i], s[j] = s[j], s[i]
|
||||
}
|
||||
}
|
||||
195
vendor/golang.org/x/exp/slices/sort.go
generated
vendored
195
vendor/golang.org/x/exp/slices/sort.go
generated
vendored
@ -1,195 +0,0 @@
|
||||
// Copyright 2022 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
//go:generate go run $GOROOT/src/sort/gen_sort_variants.go -exp
|
||||
|
||||
package slices
|
||||
|
||||
import (
|
||||
"math/bits"
|
||||
|
||||
"golang.org/x/exp/constraints"
|
||||
)
|
||||
|
||||
// Sort sorts a slice of any ordered type in ascending order.
|
||||
// When sorting floating-point numbers, NaNs are ordered before other values.
|
||||
func Sort[S ~[]E, E constraints.Ordered](x S) {
|
||||
n := len(x)
|
||||
pdqsortOrdered(x, 0, n, bits.Len(uint(n)))
|
||||
}
|
||||
|
||||
// SortFunc sorts the slice x in ascending order as determined by the cmp
|
||||
// function. This sort is not guaranteed to be stable.
|
||||
// cmp(a, b) should return a negative number when a < b, a positive number when
|
||||
// a > b and zero when a == b.
|
||||
//
|
||||
// SortFunc requires that cmp is a strict weak ordering.
|
||||
// See https://en.wikipedia.org/wiki/Weak_ordering#Strict_weak_orderings.
|
||||
func SortFunc[S ~[]E, E any](x S, cmp func(a, b E) int) {
|
||||
n := len(x)
|
||||
pdqsortCmpFunc(x, 0, n, bits.Len(uint(n)), cmp)
|
||||
}
|
||||
|
||||
// SortStableFunc sorts the slice x while keeping the original order of equal
|
||||
// elements, using cmp to compare elements in the same way as [SortFunc].
|
||||
func SortStableFunc[S ~[]E, E any](x S, cmp func(a, b E) int) {
|
||||
stableCmpFunc(x, len(x), cmp)
|
||||
}
|
||||
|
||||
// IsSorted reports whether x is sorted in ascending order.
|
||||
func IsSorted[S ~[]E, E constraints.Ordered](x S) bool {
|
||||
for i := len(x) - 1; i > 0; i-- {
|
||||
if cmpLess(x[i], x[i-1]) {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// IsSortedFunc reports whether x is sorted in ascending order, with cmp as the
|
||||
// comparison function as defined by [SortFunc].
|
||||
func IsSortedFunc[S ~[]E, E any](x S, cmp func(a, b E) int) bool {
|
||||
for i := len(x) - 1; i > 0; i-- {
|
||||
if cmp(x[i], x[i-1]) < 0 {
|
||||
return false
|
||||
}
|
||||
}
|
||||
return true
|
||||
}
|
||||
|
||||
// Min returns the minimal value in x. It panics if x is empty.
|
||||
// For floating-point numbers, Min propagates NaNs (any NaN value in x
|
||||
// forces the output to be NaN).
|
||||
func Min[S ~[]E, E constraints.Ordered](x S) E {
|
||||
if len(x) < 1 {
|
||||
panic("slices.Min: empty list")
|
||||
}
|
||||
m := x[0]
|
||||
for i := 1; i < len(x); i++ {
|
||||
m = min(m, x[i])
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// MinFunc returns the minimal value in x, using cmp to compare elements.
|
||||
// It panics if x is empty. If there is more than one minimal element
|
||||
// according to the cmp function, MinFunc returns the first one.
|
||||
func MinFunc[S ~[]E, E any](x S, cmp func(a, b E) int) E {
|
||||
if len(x) < 1 {
|
||||
panic("slices.MinFunc: empty list")
|
||||
}
|
||||
m := x[0]
|
||||
for i := 1; i < len(x); i++ {
|
||||
if cmp(x[i], m) < 0 {
|
||||
m = x[i]
|
||||
}
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// Max returns the maximal value in x. It panics if x is empty.
|
||||
// For floating-point E, Max propagates NaNs (any NaN value in x
|
||||
// forces the output to be NaN).
|
||||
func Max[S ~[]E, E constraints.Ordered](x S) E {
|
||||
if len(x) < 1 {
|
||||
panic("slices.Max: empty list")
|
||||
}
|
||||
m := x[0]
|
||||
for i := 1; i < len(x); i++ {
|
||||
m = max(m, x[i])
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// MaxFunc returns the maximal value in x, using cmp to compare elements.
|
||||
// It panics if x is empty. If there is more than one maximal element
|
||||
// according to the cmp function, MaxFunc returns the first one.
|
||||
func MaxFunc[S ~[]E, E any](x S, cmp func(a, b E) int) E {
|
||||
if len(x) < 1 {
|
||||
panic("slices.MaxFunc: empty list")
|
||||
}
|
||||
m := x[0]
|
||||
for i := 1; i < len(x); i++ {
|
||||
if cmp(x[i], m) > 0 {
|
||||
m = x[i]
|
||||
}
|
||||
}
|
||||
return m
|
||||
}
|
||||
|
||||
// BinarySearch searches for target in a sorted slice and returns the position
|
||||
// where target is found, or the position where target would appear in the
|
||||
// sort order; it also returns a bool saying whether the target is really found
|
||||
// in the slice. The slice must be sorted in increasing order.
|
||||
func BinarySearch[S ~[]E, E constraints.Ordered](x S, target E) (int, bool) {
|
||||
// Inlining is faster than calling BinarySearchFunc with a lambda.
|
||||
n := len(x)
|
||||
// Define x[-1] < target and x[n] >= target.
|
||||
// Invariant: x[i-1] < target, x[j] >= target.
|
||||
i, j := 0, n
|
||||
for i < j {
|
||||
h := int(uint(i+j) >> 1) // avoid overflow when computing h
|
||||
// i ≤ h < j
|
||||
if cmpLess(x[h], target) {
|
||||
i = h + 1 // preserves x[i-1] < target
|
||||
} else {
|
||||
j = h // preserves x[j] >= target
|
||||
}
|
||||
}
|
||||
// i == j, x[i-1] < target, and x[j] (= x[i]) >= target => answer is i.
|
||||
return i, i < n && (x[i] == target || (isNaN(x[i]) && isNaN(target)))
|
||||
}
|
||||
|
||||
// BinarySearchFunc works like [BinarySearch], but uses a custom comparison
|
||||
// function. The slice must be sorted in increasing order, where "increasing"
|
||||
// is defined by cmp. cmp should return 0 if the slice element matches
|
||||
// the target, a negative number if the slice element precedes the target,
|
||||
// or a positive number if the slice element follows the target.
|
||||
// cmp must implement the same ordering as the slice, such that if
|
||||
// cmp(a, t) < 0 and cmp(b, t) >= 0, then a must precede b in the slice.
|
||||
func BinarySearchFunc[S ~[]E, E, T any](x S, target T, cmp func(E, T) int) (int, bool) {
|
||||
n := len(x)
|
||||
// Define cmp(x[-1], target) < 0 and cmp(x[n], target) >= 0 .
|
||||
// Invariant: cmp(x[i - 1], target) < 0, cmp(x[j], target) >= 0.
|
||||
i, j := 0, n
|
||||
for i < j {
|
||||
h := int(uint(i+j) >> 1) // avoid overflow when computing h
|
||||
// i ≤ h < j
|
||||
if cmp(x[h], target) < 0 {
|
||||
i = h + 1 // preserves cmp(x[i - 1], target) < 0
|
||||
} else {
|
||||
j = h // preserves cmp(x[j], target) >= 0
|
||||
}
|
||||
}
|
||||
// i == j, cmp(x[i-1], target) < 0, and cmp(x[j], target) (= cmp(x[i], target)) >= 0 => answer is i.
|
||||
return i, i < n && cmp(x[i], target) == 0
|
||||
}
|
||||
|
||||
type sortedHint int // hint for pdqsort when choosing the pivot
|
||||
|
||||
const (
|
||||
unknownHint sortedHint = iota
|
||||
increasingHint
|
||||
decreasingHint
|
||||
)
|
||||
|
||||
// xorshift paper: https://www.jstatsoft.org/article/view/v008i14/xorshift.pdf
|
||||
type xorshift uint64
|
||||
|
||||
func (r *xorshift) Next() uint64 {
|
||||
*r ^= *r << 13
|
||||
*r ^= *r >> 17
|
||||
*r ^= *r << 5
|
||||
return uint64(*r)
|
||||
}
|
||||
|
||||
func nextPowerOfTwo(length int) uint {
|
||||
return 1 << bits.Len(uint(length))
|
||||
}
|
||||
|
||||
// isNaN reports whether x is a NaN without requiring the math package.
|
||||
// This will always return false if T is not floating-point.
|
||||
func isNaN[T constraints.Ordered](x T) bool {
|
||||
return x != x
|
||||
}
|
||||
479
vendor/golang.org/x/exp/slices/zsortanyfunc.go
generated
vendored
479
vendor/golang.org/x/exp/slices/zsortanyfunc.go
generated
vendored
@ -1,479 +0,0 @@
|
||||
// Code generated by gen_sort_variants.go; DO NOT EDIT.
|
||||
|
||||
// Copyright 2022 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package slices
|
||||
|
||||
// insertionSortCmpFunc sorts data[a:b] using insertion sort.
|
||||
func insertionSortCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
|
||||
for i := a + 1; i < b; i++ {
|
||||
for j := i; j > a && (cmp(data[j], data[j-1]) < 0); j-- {
|
||||
data[j], data[j-1] = data[j-1], data[j]
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// siftDownCmpFunc implements the heap property on data[lo:hi].
|
||||
// first is an offset into the array where the root of the heap lies.
|
||||
func siftDownCmpFunc[E any](data []E, lo, hi, first int, cmp func(a, b E) int) {
|
||||
root := lo
|
||||
for {
|
||||
child := 2*root + 1
|
||||
if child >= hi {
|
||||
break
|
||||
}
|
||||
if child+1 < hi && (cmp(data[first+child], data[first+child+1]) < 0) {
|
||||
child++
|
||||
}
|
||||
if !(cmp(data[first+root], data[first+child]) < 0) {
|
||||
return
|
||||
}
|
||||
data[first+root], data[first+child] = data[first+child], data[first+root]
|
||||
root = child
|
||||
}
|
||||
}
|
||||
|
||||
func heapSortCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
|
||||
first := a
|
||||
lo := 0
|
||||
hi := b - a
|
||||
|
||||
// Build heap with greatest element at top.
|
||||
for i := (hi - 1) / 2; i >= 0; i-- {
|
||||
siftDownCmpFunc(data, i, hi, first, cmp)
|
||||
}
|
||||
|
||||
// Pop elements, largest first, into end of data.
|
||||
for i := hi - 1; i >= 0; i-- {
|
||||
data[first], data[first+i] = data[first+i], data[first]
|
||||
siftDownCmpFunc(data, lo, i, first, cmp)
|
||||
}
|
||||
}
|
||||
|
||||
// pdqsortCmpFunc sorts data[a:b].
|
||||
// The algorithm based on pattern-defeating quicksort(pdqsort), but without the optimizations from BlockQuicksort.
|
||||
// pdqsort paper: https://arxiv.org/pdf/2106.05123.pdf
|
||||
// C++ implementation: https://github.com/orlp/pdqsort
|
||||
// Rust implementation: https://docs.rs/pdqsort/latest/pdqsort/
|
||||
// limit is the number of allowed bad (very unbalanced) pivots before falling back to heapsort.
|
||||
func pdqsortCmpFunc[E any](data []E, a, b, limit int, cmp func(a, b E) int) {
|
||||
const maxInsertion = 12
|
||||
|
||||
var (
|
||||
wasBalanced = true // whether the last partitioning was reasonably balanced
|
||||
wasPartitioned = true // whether the slice was already partitioned
|
||||
)
|
||||
|
||||
for {
|
||||
length := b - a
|
||||
|
||||
if length <= maxInsertion {
|
||||
insertionSortCmpFunc(data, a, b, cmp)
|
||||
return
|
||||
}
|
||||
|
||||
// Fall back to heapsort if too many bad choices were made.
|
||||
if limit == 0 {
|
||||
heapSortCmpFunc(data, a, b, cmp)
|
||||
return
|
||||
}
|
||||
|
||||
// If the last partitioning was imbalanced, we need to breaking patterns.
|
||||
if !wasBalanced {
|
||||
breakPatternsCmpFunc(data, a, b, cmp)
|
||||
limit--
|
||||
}
|
||||
|
||||
pivot, hint := choosePivotCmpFunc(data, a, b, cmp)
|
||||
if hint == decreasingHint {
|
||||
reverseRangeCmpFunc(data, a, b, cmp)
|
||||
// The chosen pivot was pivot-a elements after the start of the array.
|
||||
// After reversing it is pivot-a elements before the end of the array.
|
||||
// The idea came from Rust's implementation.
|
||||
pivot = (b - 1) - (pivot - a)
|
||||
hint = increasingHint
|
||||
}
|
||||
|
||||
// The slice is likely already sorted.
|
||||
if wasBalanced && wasPartitioned && hint == increasingHint {
|
||||
if partialInsertionSortCmpFunc(data, a, b, cmp) {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Probably the slice contains many duplicate elements, partition the slice into
|
||||
// elements equal to and elements greater than the pivot.
|
||||
if a > 0 && !(cmp(data[a-1], data[pivot]) < 0) {
|
||||
mid := partitionEqualCmpFunc(data, a, b, pivot, cmp)
|
||||
a = mid
|
||||
continue
|
||||
}
|
||||
|
||||
mid, alreadyPartitioned := partitionCmpFunc(data, a, b, pivot, cmp)
|
||||
wasPartitioned = alreadyPartitioned
|
||||
|
||||
leftLen, rightLen := mid-a, b-mid
|
||||
balanceThreshold := length / 8
|
||||
if leftLen < rightLen {
|
||||
wasBalanced = leftLen >= balanceThreshold
|
||||
pdqsortCmpFunc(data, a, mid, limit, cmp)
|
||||
a = mid + 1
|
||||
} else {
|
||||
wasBalanced = rightLen >= balanceThreshold
|
||||
pdqsortCmpFunc(data, mid+1, b, limit, cmp)
|
||||
b = mid
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// partitionCmpFunc does one quicksort partition.
|
||||
// Let p = data[pivot]
|
||||
// Moves elements in data[a:b] around, so that data[i]<p and data[j]>=p for i<newpivot and j>newpivot.
|
||||
// On return, data[newpivot] = p
|
||||
func partitionCmpFunc[E any](data []E, a, b, pivot int, cmp func(a, b E) int) (newpivot int, alreadyPartitioned bool) {
|
||||
data[a], data[pivot] = data[pivot], data[a]
|
||||
i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
|
||||
|
||||
for i <= j && (cmp(data[i], data[a]) < 0) {
|
||||
i++
|
||||
}
|
||||
for i <= j && !(cmp(data[j], data[a]) < 0) {
|
||||
j--
|
||||
}
|
||||
if i > j {
|
||||
data[j], data[a] = data[a], data[j]
|
||||
return j, true
|
||||
}
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
|
||||
for {
|
||||
for i <= j && (cmp(data[i], data[a]) < 0) {
|
||||
i++
|
||||
}
|
||||
for i <= j && !(cmp(data[j], data[a]) < 0) {
|
||||
j--
|
||||
}
|
||||
if i > j {
|
||||
break
|
||||
}
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
}
|
||||
data[j], data[a] = data[a], data[j]
|
||||
return j, false
|
||||
}
|
||||
|
||||
// partitionEqualCmpFunc partitions data[a:b] into elements equal to data[pivot] followed by elements greater than data[pivot].
|
||||
// It assumed that data[a:b] does not contain elements smaller than the data[pivot].
|
||||
func partitionEqualCmpFunc[E any](data []E, a, b, pivot int, cmp func(a, b E) int) (newpivot int) {
|
||||
data[a], data[pivot] = data[pivot], data[a]
|
||||
i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
|
||||
|
||||
for {
|
||||
for i <= j && !(cmp(data[a], data[i]) < 0) {
|
||||
i++
|
||||
}
|
||||
for i <= j && (cmp(data[a], data[j]) < 0) {
|
||||
j--
|
||||
}
|
||||
if i > j {
|
||||
break
|
||||
}
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
// partialInsertionSortCmpFunc partially sorts a slice, returns true if the slice is sorted at the end.
|
||||
func partialInsertionSortCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) bool {
|
||||
const (
|
||||
maxSteps = 5 // maximum number of adjacent out-of-order pairs that will get shifted
|
||||
shortestShifting = 50 // don't shift any elements on short arrays
|
||||
)
|
||||
i := a + 1
|
||||
for j := 0; j < maxSteps; j++ {
|
||||
for i < b && !(cmp(data[i], data[i-1]) < 0) {
|
||||
i++
|
||||
}
|
||||
|
||||
if i == b {
|
||||
return true
|
||||
}
|
||||
|
||||
if b-a < shortestShifting {
|
||||
return false
|
||||
}
|
||||
|
||||
data[i], data[i-1] = data[i-1], data[i]
|
||||
|
||||
// Shift the smaller one to the left.
|
||||
if i-a >= 2 {
|
||||
for j := i - 1; j >= 1; j-- {
|
||||
if !(cmp(data[j], data[j-1]) < 0) {
|
||||
break
|
||||
}
|
||||
data[j], data[j-1] = data[j-1], data[j]
|
||||
}
|
||||
}
|
||||
// Shift the greater one to the right.
|
||||
if b-i >= 2 {
|
||||
for j := i + 1; j < b; j++ {
|
||||
if !(cmp(data[j], data[j-1]) < 0) {
|
||||
break
|
||||
}
|
||||
data[j], data[j-1] = data[j-1], data[j]
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// breakPatternsCmpFunc scatters some elements around in an attempt to break some patterns
|
||||
// that might cause imbalanced partitions in quicksort.
|
||||
func breakPatternsCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
|
||||
length := b - a
|
||||
if length >= 8 {
|
||||
random := xorshift(length)
|
||||
modulus := nextPowerOfTwo(length)
|
||||
|
||||
for idx := a + (length/4)*2 - 1; idx <= a+(length/4)*2+1; idx++ {
|
||||
other := int(uint(random.Next()) & (modulus - 1))
|
||||
if other >= length {
|
||||
other -= length
|
||||
}
|
||||
data[idx], data[a+other] = data[a+other], data[idx]
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// choosePivotCmpFunc chooses a pivot in data[a:b].
|
||||
//
|
||||
// [0,8): chooses a static pivot.
|
||||
// [8,shortestNinther): uses the simple median-of-three method.
|
||||
// [shortestNinther,∞): uses the Tukey ninther method.
|
||||
func choosePivotCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) (pivot int, hint sortedHint) {
|
||||
const (
|
||||
shortestNinther = 50
|
||||
maxSwaps = 4 * 3
|
||||
)
|
||||
|
||||
l := b - a
|
||||
|
||||
var (
|
||||
swaps int
|
||||
i = a + l/4*1
|
||||
j = a + l/4*2
|
||||
k = a + l/4*3
|
||||
)
|
||||
|
||||
if l >= 8 {
|
||||
if l >= shortestNinther {
|
||||
// Tukey ninther method, the idea came from Rust's implementation.
|
||||
i = medianAdjacentCmpFunc(data, i, &swaps, cmp)
|
||||
j = medianAdjacentCmpFunc(data, j, &swaps, cmp)
|
||||
k = medianAdjacentCmpFunc(data, k, &swaps, cmp)
|
||||
}
|
||||
// Find the median among i, j, k and stores it into j.
|
||||
j = medianCmpFunc(data, i, j, k, &swaps, cmp)
|
||||
}
|
||||
|
||||
switch swaps {
|
||||
case 0:
|
||||
return j, increasingHint
|
||||
case maxSwaps:
|
||||
return j, decreasingHint
|
||||
default:
|
||||
return j, unknownHint
|
||||
}
|
||||
}
|
||||
|
||||
// order2CmpFunc returns x,y where data[x] <= data[y], where x,y=a,b or x,y=b,a.
|
||||
func order2CmpFunc[E any](data []E, a, b int, swaps *int, cmp func(a, b E) int) (int, int) {
|
||||
if cmp(data[b], data[a]) < 0 {
|
||||
*swaps++
|
||||
return b, a
|
||||
}
|
||||
return a, b
|
||||
}
|
||||
|
||||
// medianCmpFunc returns x where data[x] is the median of data[a],data[b],data[c], where x is a, b, or c.
|
||||
func medianCmpFunc[E any](data []E, a, b, c int, swaps *int, cmp func(a, b E) int) int {
|
||||
a, b = order2CmpFunc(data, a, b, swaps, cmp)
|
||||
b, c = order2CmpFunc(data, b, c, swaps, cmp)
|
||||
a, b = order2CmpFunc(data, a, b, swaps, cmp)
|
||||
return b
|
||||
}
|
||||
|
||||
// medianAdjacentCmpFunc finds the median of data[a - 1], data[a], data[a + 1] and stores the index into a.
|
||||
func medianAdjacentCmpFunc[E any](data []E, a int, swaps *int, cmp func(a, b E) int) int {
|
||||
return medianCmpFunc(data, a-1, a, a+1, swaps, cmp)
|
||||
}
|
||||
|
||||
func reverseRangeCmpFunc[E any](data []E, a, b int, cmp func(a, b E) int) {
|
||||
i := a
|
||||
j := b - 1
|
||||
for i < j {
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
}
|
||||
}
|
||||
|
||||
func swapRangeCmpFunc[E any](data []E, a, b, n int, cmp func(a, b E) int) {
|
||||
for i := 0; i < n; i++ {
|
||||
data[a+i], data[b+i] = data[b+i], data[a+i]
|
||||
}
|
||||
}
|
||||
|
||||
func stableCmpFunc[E any](data []E, n int, cmp func(a, b E) int) {
|
||||
blockSize := 20 // must be > 0
|
||||
a, b := 0, blockSize
|
||||
for b <= n {
|
||||
insertionSortCmpFunc(data, a, b, cmp)
|
||||
a = b
|
||||
b += blockSize
|
||||
}
|
||||
insertionSortCmpFunc(data, a, n, cmp)
|
||||
|
||||
for blockSize < n {
|
||||
a, b = 0, 2*blockSize
|
||||
for b <= n {
|
||||
symMergeCmpFunc(data, a, a+blockSize, b, cmp)
|
||||
a = b
|
||||
b += 2 * blockSize
|
||||
}
|
||||
if m := a + blockSize; m < n {
|
||||
symMergeCmpFunc(data, a, m, n, cmp)
|
||||
}
|
||||
blockSize *= 2
|
||||
}
|
||||
}
|
||||
|
||||
// symMergeCmpFunc merges the two sorted subsequences data[a:m] and data[m:b] using
|
||||
// the SymMerge algorithm from Pok-Son Kim and Arne Kutzner, "Stable Minimum
|
||||
// Storage Merging by Symmetric Comparisons", in Susanne Albers and Tomasz
|
||||
// Radzik, editors, Algorithms - ESA 2004, volume 3221 of Lecture Notes in
|
||||
// Computer Science, pages 714-723. Springer, 2004.
|
||||
//
|
||||
// Let M = m-a and N = b-n. Wolog M < N.
|
||||
// The recursion depth is bound by ceil(log(N+M)).
|
||||
// The algorithm needs O(M*log(N/M + 1)) calls to data.Less.
|
||||
// The algorithm needs O((M+N)*log(M)) calls to data.Swap.
|
||||
//
|
||||
// The paper gives O((M+N)*log(M)) as the number of assignments assuming a
|
||||
// rotation algorithm which uses O(M+N+gcd(M+N)) assignments. The argumentation
|
||||
// in the paper carries through for Swap operations, especially as the block
|
||||
// swapping rotate uses only O(M+N) Swaps.
|
||||
//
|
||||
// symMerge assumes non-degenerate arguments: a < m && m < b.
|
||||
// Having the caller check this condition eliminates many leaf recursion calls,
|
||||
// which improves performance.
|
||||
func symMergeCmpFunc[E any](data []E, a, m, b int, cmp func(a, b E) int) {
|
||||
// Avoid unnecessary recursions of symMerge
|
||||
// by direct insertion of data[a] into data[m:b]
|
||||
// if data[a:m] only contains one element.
|
||||
if m-a == 1 {
|
||||
// Use binary search to find the lowest index i
|
||||
// such that data[i] >= data[a] for m <= i < b.
|
||||
// Exit the search loop with i == b in case no such index exists.
|
||||
i := m
|
||||
j := b
|
||||
for i < j {
|
||||
h := int(uint(i+j) >> 1)
|
||||
if cmp(data[h], data[a]) < 0 {
|
||||
i = h + 1
|
||||
} else {
|
||||
j = h
|
||||
}
|
||||
}
|
||||
// Swap values until data[a] reaches the position before i.
|
||||
for k := a; k < i-1; k++ {
|
||||
data[k], data[k+1] = data[k+1], data[k]
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Avoid unnecessary recursions of symMerge
|
||||
// by direct insertion of data[m] into data[a:m]
|
||||
// if data[m:b] only contains one element.
|
||||
if b-m == 1 {
|
||||
// Use binary search to find the lowest index i
|
||||
// such that data[i] > data[m] for a <= i < m.
|
||||
// Exit the search loop with i == m in case no such index exists.
|
||||
i := a
|
||||
j := m
|
||||
for i < j {
|
||||
h := int(uint(i+j) >> 1)
|
||||
if !(cmp(data[m], data[h]) < 0) {
|
||||
i = h + 1
|
||||
} else {
|
||||
j = h
|
||||
}
|
||||
}
|
||||
// Swap values until data[m] reaches the position i.
|
||||
for k := m; k > i; k-- {
|
||||
data[k], data[k-1] = data[k-1], data[k]
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
mid := int(uint(a+b) >> 1)
|
||||
n := mid + m
|
||||
var start, r int
|
||||
if m > mid {
|
||||
start = n - b
|
||||
r = mid
|
||||
} else {
|
||||
start = a
|
||||
r = m
|
||||
}
|
||||
p := n - 1
|
||||
|
||||
for start < r {
|
||||
c := int(uint(start+r) >> 1)
|
||||
if !(cmp(data[p-c], data[c]) < 0) {
|
||||
start = c + 1
|
||||
} else {
|
||||
r = c
|
||||
}
|
||||
}
|
||||
|
||||
end := n - start
|
||||
if start < m && m < end {
|
||||
rotateCmpFunc(data, start, m, end, cmp)
|
||||
}
|
||||
if a < start && start < mid {
|
||||
symMergeCmpFunc(data, a, start, mid, cmp)
|
||||
}
|
||||
if mid < end && end < b {
|
||||
symMergeCmpFunc(data, mid, end, b, cmp)
|
||||
}
|
||||
}
|
||||
|
||||
// rotateCmpFunc rotates two consecutive blocks u = data[a:m] and v = data[m:b] in data:
|
||||
// Data of the form 'x u v y' is changed to 'x v u y'.
|
||||
// rotate performs at most b-a many calls to data.Swap,
|
||||
// and it assumes non-degenerate arguments: a < m && m < b.
|
||||
func rotateCmpFunc[E any](data []E, a, m, b int, cmp func(a, b E) int) {
|
||||
i := m - a
|
||||
j := b - m
|
||||
|
||||
for i != j {
|
||||
if i > j {
|
||||
swapRangeCmpFunc(data, m-i, m, j, cmp)
|
||||
i -= j
|
||||
} else {
|
||||
swapRangeCmpFunc(data, m-i, m+j-i, i, cmp)
|
||||
j -= i
|
||||
}
|
||||
}
|
||||
// i == j
|
||||
swapRangeCmpFunc(data, m-i, m, i, cmp)
|
||||
}
|
||||
481
vendor/golang.org/x/exp/slices/zsortordered.go
generated
vendored
481
vendor/golang.org/x/exp/slices/zsortordered.go
generated
vendored
@ -1,481 +0,0 @@
|
||||
// Code generated by gen_sort_variants.go; DO NOT EDIT.
|
||||
|
||||
// Copyright 2022 The Go Authors. All rights reserved.
|
||||
// Use of this source code is governed by a BSD-style
|
||||
// license that can be found in the LICENSE file.
|
||||
|
||||
package slices
|
||||
|
||||
import "golang.org/x/exp/constraints"
|
||||
|
||||
// insertionSortOrdered sorts data[a:b] using insertion sort.
|
||||
func insertionSortOrdered[E constraints.Ordered](data []E, a, b int) {
|
||||
for i := a + 1; i < b; i++ {
|
||||
for j := i; j > a && cmpLess(data[j], data[j-1]); j-- {
|
||||
data[j], data[j-1] = data[j-1], data[j]
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// siftDownOrdered implements the heap property on data[lo:hi].
|
||||
// first is an offset into the array where the root of the heap lies.
|
||||
func siftDownOrdered[E constraints.Ordered](data []E, lo, hi, first int) {
|
||||
root := lo
|
||||
for {
|
||||
child := 2*root + 1
|
||||
if child >= hi {
|
||||
break
|
||||
}
|
||||
if child+1 < hi && cmpLess(data[first+child], data[first+child+1]) {
|
||||
child++
|
||||
}
|
||||
if !cmpLess(data[first+root], data[first+child]) {
|
||||
return
|
||||
}
|
||||
data[first+root], data[first+child] = data[first+child], data[first+root]
|
||||
root = child
|
||||
}
|
||||
}
|
||||
|
||||
func heapSortOrdered[E constraints.Ordered](data []E, a, b int) {
|
||||
first := a
|
||||
lo := 0
|
||||
hi := b - a
|
||||
|
||||
// Build heap with greatest element at top.
|
||||
for i := (hi - 1) / 2; i >= 0; i-- {
|
||||
siftDownOrdered(data, i, hi, first)
|
||||
}
|
||||
|
||||
// Pop elements, largest first, into end of data.
|
||||
for i := hi - 1; i >= 0; i-- {
|
||||
data[first], data[first+i] = data[first+i], data[first]
|
||||
siftDownOrdered(data, lo, i, first)
|
||||
}
|
||||
}
|
||||
|
||||
// pdqsortOrdered sorts data[a:b].
|
||||
// The algorithm based on pattern-defeating quicksort(pdqsort), but without the optimizations from BlockQuicksort.
|
||||
// pdqsort paper: https://arxiv.org/pdf/2106.05123.pdf
|
||||
// C++ implementation: https://github.com/orlp/pdqsort
|
||||
// Rust implementation: https://docs.rs/pdqsort/latest/pdqsort/
|
||||
// limit is the number of allowed bad (very unbalanced) pivots before falling back to heapsort.
|
||||
func pdqsortOrdered[E constraints.Ordered](data []E, a, b, limit int) {
|
||||
const maxInsertion = 12
|
||||
|
||||
var (
|
||||
wasBalanced = true // whether the last partitioning was reasonably balanced
|
||||
wasPartitioned = true // whether the slice was already partitioned
|
||||
)
|
||||
|
||||
for {
|
||||
length := b - a
|
||||
|
||||
if length <= maxInsertion {
|
||||
insertionSortOrdered(data, a, b)
|
||||
return
|
||||
}
|
||||
|
||||
// Fall back to heapsort if too many bad choices were made.
|
||||
if limit == 0 {
|
||||
heapSortOrdered(data, a, b)
|
||||
return
|
||||
}
|
||||
|
||||
// If the last partitioning was imbalanced, we need to breaking patterns.
|
||||
if !wasBalanced {
|
||||
breakPatternsOrdered(data, a, b)
|
||||
limit--
|
||||
}
|
||||
|
||||
pivot, hint := choosePivotOrdered(data, a, b)
|
||||
if hint == decreasingHint {
|
||||
reverseRangeOrdered(data, a, b)
|
||||
// The chosen pivot was pivot-a elements after the start of the array.
|
||||
// After reversing it is pivot-a elements before the end of the array.
|
||||
// The idea came from Rust's implementation.
|
||||
pivot = (b - 1) - (pivot - a)
|
||||
hint = increasingHint
|
||||
}
|
||||
|
||||
// The slice is likely already sorted.
|
||||
if wasBalanced && wasPartitioned && hint == increasingHint {
|
||||
if partialInsertionSortOrdered(data, a, b) {
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
// Probably the slice contains many duplicate elements, partition the slice into
|
||||
// elements equal to and elements greater than the pivot.
|
||||
if a > 0 && !cmpLess(data[a-1], data[pivot]) {
|
||||
mid := partitionEqualOrdered(data, a, b, pivot)
|
||||
a = mid
|
||||
continue
|
||||
}
|
||||
|
||||
mid, alreadyPartitioned := partitionOrdered(data, a, b, pivot)
|
||||
wasPartitioned = alreadyPartitioned
|
||||
|
||||
leftLen, rightLen := mid-a, b-mid
|
||||
balanceThreshold := length / 8
|
||||
if leftLen < rightLen {
|
||||
wasBalanced = leftLen >= balanceThreshold
|
||||
pdqsortOrdered(data, a, mid, limit)
|
||||
a = mid + 1
|
||||
} else {
|
||||
wasBalanced = rightLen >= balanceThreshold
|
||||
pdqsortOrdered(data, mid+1, b, limit)
|
||||
b = mid
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// partitionOrdered does one quicksort partition.
|
||||
// Let p = data[pivot]
|
||||
// Moves elements in data[a:b] around, so that data[i]<p and data[j]>=p for i<newpivot and j>newpivot.
|
||||
// On return, data[newpivot] = p
|
||||
func partitionOrdered[E constraints.Ordered](data []E, a, b, pivot int) (newpivot int, alreadyPartitioned bool) {
|
||||
data[a], data[pivot] = data[pivot], data[a]
|
||||
i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
|
||||
|
||||
for i <= j && cmpLess(data[i], data[a]) {
|
||||
i++
|
||||
}
|
||||
for i <= j && !cmpLess(data[j], data[a]) {
|
||||
j--
|
||||
}
|
||||
if i > j {
|
||||
data[j], data[a] = data[a], data[j]
|
||||
return j, true
|
||||
}
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
|
||||
for {
|
||||
for i <= j && cmpLess(data[i], data[a]) {
|
||||
i++
|
||||
}
|
||||
for i <= j && !cmpLess(data[j], data[a]) {
|
||||
j--
|
||||
}
|
||||
if i > j {
|
||||
break
|
||||
}
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
}
|
||||
data[j], data[a] = data[a], data[j]
|
||||
return j, false
|
||||
}
|
||||
|
||||
// partitionEqualOrdered partitions data[a:b] into elements equal to data[pivot] followed by elements greater than data[pivot].
|
||||
// It assumed that data[a:b] does not contain elements smaller than the data[pivot].
|
||||
func partitionEqualOrdered[E constraints.Ordered](data []E, a, b, pivot int) (newpivot int) {
|
||||
data[a], data[pivot] = data[pivot], data[a]
|
||||
i, j := a+1, b-1 // i and j are inclusive of the elements remaining to be partitioned
|
||||
|
||||
for {
|
||||
for i <= j && !cmpLess(data[a], data[i]) {
|
||||
i++
|
||||
}
|
||||
for i <= j && cmpLess(data[a], data[j]) {
|
||||
j--
|
||||
}
|
||||
if i > j {
|
||||
break
|
||||
}
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
}
|
||||
return i
|
||||
}
|
||||
|
||||
// partialInsertionSortOrdered partially sorts a slice, returns true if the slice is sorted at the end.
|
||||
func partialInsertionSortOrdered[E constraints.Ordered](data []E, a, b int) bool {
|
||||
const (
|
||||
maxSteps = 5 // maximum number of adjacent out-of-order pairs that will get shifted
|
||||
shortestShifting = 50 // don't shift any elements on short arrays
|
||||
)
|
||||
i := a + 1
|
||||
for j := 0; j < maxSteps; j++ {
|
||||
for i < b && !cmpLess(data[i], data[i-1]) {
|
||||
i++
|
||||
}
|
||||
|
||||
if i == b {
|
||||
return true
|
||||
}
|
||||
|
||||
if b-a < shortestShifting {
|
||||
return false
|
||||
}
|
||||
|
||||
data[i], data[i-1] = data[i-1], data[i]
|
||||
|
||||
// Shift the smaller one to the left.
|
||||
if i-a >= 2 {
|
||||
for j := i - 1; j >= 1; j-- {
|
||||
if !cmpLess(data[j], data[j-1]) {
|
||||
break
|
||||
}
|
||||
data[j], data[j-1] = data[j-1], data[j]
|
||||
}
|
||||
}
|
||||
// Shift the greater one to the right.
|
||||
if b-i >= 2 {
|
||||
for j := i + 1; j < b; j++ {
|
||||
if !cmpLess(data[j], data[j-1]) {
|
||||
break
|
||||
}
|
||||
data[j], data[j-1] = data[j-1], data[j]
|
||||
}
|
||||
}
|
||||
}
|
||||
return false
|
||||
}
|
||||
|
||||
// breakPatternsOrdered scatters some elements around in an attempt to break some patterns
|
||||
// that might cause imbalanced partitions in quicksort.
|
||||
func breakPatternsOrdered[E constraints.Ordered](data []E, a, b int) {
|
||||
length := b - a
|
||||
if length >= 8 {
|
||||
random := xorshift(length)
|
||||
modulus := nextPowerOfTwo(length)
|
||||
|
||||
for idx := a + (length/4)*2 - 1; idx <= a+(length/4)*2+1; idx++ {
|
||||
other := int(uint(random.Next()) & (modulus - 1))
|
||||
if other >= length {
|
||||
other -= length
|
||||
}
|
||||
data[idx], data[a+other] = data[a+other], data[idx]
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// choosePivotOrdered chooses a pivot in data[a:b].
|
||||
//
|
||||
// [0,8): chooses a static pivot.
|
||||
// [8,shortestNinther): uses the simple median-of-three method.
|
||||
// [shortestNinther,∞): uses the Tukey ninther method.
|
||||
func choosePivotOrdered[E constraints.Ordered](data []E, a, b int) (pivot int, hint sortedHint) {
|
||||
const (
|
||||
shortestNinther = 50
|
||||
maxSwaps = 4 * 3
|
||||
)
|
||||
|
||||
l := b - a
|
||||
|
||||
var (
|
||||
swaps int
|
||||
i = a + l/4*1
|
||||
j = a + l/4*2
|
||||
k = a + l/4*3
|
||||
)
|
||||
|
||||
if l >= 8 {
|
||||
if l >= shortestNinther {
|
||||
// Tukey ninther method, the idea came from Rust's implementation.
|
||||
i = medianAdjacentOrdered(data, i, &swaps)
|
||||
j = medianAdjacentOrdered(data, j, &swaps)
|
||||
k = medianAdjacentOrdered(data, k, &swaps)
|
||||
}
|
||||
// Find the median among i, j, k and stores it into j.
|
||||
j = medianOrdered(data, i, j, k, &swaps)
|
||||
}
|
||||
|
||||
switch swaps {
|
||||
case 0:
|
||||
return j, increasingHint
|
||||
case maxSwaps:
|
||||
return j, decreasingHint
|
||||
default:
|
||||
return j, unknownHint
|
||||
}
|
||||
}
|
||||
|
||||
// order2Ordered returns x,y where data[x] <= data[y], where x,y=a,b or x,y=b,a.
|
||||
func order2Ordered[E constraints.Ordered](data []E, a, b int, swaps *int) (int, int) {
|
||||
if cmpLess(data[b], data[a]) {
|
||||
*swaps++
|
||||
return b, a
|
||||
}
|
||||
return a, b
|
||||
}
|
||||
|
||||
// medianOrdered returns x where data[x] is the median of data[a],data[b],data[c], where x is a, b, or c.
|
||||
func medianOrdered[E constraints.Ordered](data []E, a, b, c int, swaps *int) int {
|
||||
a, b = order2Ordered(data, a, b, swaps)
|
||||
b, c = order2Ordered(data, b, c, swaps)
|
||||
a, b = order2Ordered(data, a, b, swaps)
|
||||
return b
|
||||
}
|
||||
|
||||
// medianAdjacentOrdered finds the median of data[a - 1], data[a], data[a + 1] and stores the index into a.
|
||||
func medianAdjacentOrdered[E constraints.Ordered](data []E, a int, swaps *int) int {
|
||||
return medianOrdered(data, a-1, a, a+1, swaps)
|
||||
}
|
||||
|
||||
func reverseRangeOrdered[E constraints.Ordered](data []E, a, b int) {
|
||||
i := a
|
||||
j := b - 1
|
||||
for i < j {
|
||||
data[i], data[j] = data[j], data[i]
|
||||
i++
|
||||
j--
|
||||
}
|
||||
}
|
||||
|
||||
func swapRangeOrdered[E constraints.Ordered](data []E, a, b, n int) {
|
||||
for i := 0; i < n; i++ {
|
||||
data[a+i], data[b+i] = data[b+i], data[a+i]
|
||||
}
|
||||
}
|
||||
|
||||
func stableOrdered[E constraints.Ordered](data []E, n int) {
|
||||
blockSize := 20 // must be > 0
|
||||
a, b := 0, blockSize
|
||||
for b <= n {
|
||||
insertionSortOrdered(data, a, b)
|
||||
a = b
|
||||
b += blockSize
|
||||
}
|
||||
insertionSortOrdered(data, a, n)
|
||||
|
||||
for blockSize < n {
|
||||
a, b = 0, 2*blockSize
|
||||
for b <= n {
|
||||
symMergeOrdered(data, a, a+blockSize, b)
|
||||
a = b
|
||||
b += 2 * blockSize
|
||||
}
|
||||
if m := a + blockSize; m < n {
|
||||
symMergeOrdered(data, a, m, n)
|
||||
}
|
||||
blockSize *= 2
|
||||
}
|
||||
}
|
||||
|
||||
// symMergeOrdered merges the two sorted subsequences data[a:m] and data[m:b] using
|
||||
// the SymMerge algorithm from Pok-Son Kim and Arne Kutzner, "Stable Minimum
|
||||
// Storage Merging by Symmetric Comparisons", in Susanne Albers and Tomasz
|
||||
// Radzik, editors, Algorithms - ESA 2004, volume 3221 of Lecture Notes in
|
||||
// Computer Science, pages 714-723. Springer, 2004.
|
||||
//
|
||||
// Let M = m-a and N = b-n. Wolog M < N.
|
||||
// The recursion depth is bound by ceil(log(N+M)).
|
||||
// The algorithm needs O(M*log(N/M + 1)) calls to data.Less.
|
||||
// The algorithm needs O((M+N)*log(M)) calls to data.Swap.
|
||||
//
|
||||
// The paper gives O((M+N)*log(M)) as the number of assignments assuming a
|
||||
// rotation algorithm which uses O(M+N+gcd(M+N)) assignments. The argumentation
|
||||
// in the paper carries through for Swap operations, especially as the block
|
||||
// swapping rotate uses only O(M+N) Swaps.
|
||||
//
|
||||
// symMerge assumes non-degenerate arguments: a < m && m < b.
|
||||
// Having the caller check this condition eliminates many leaf recursion calls,
|
||||
// which improves performance.
|
||||
func symMergeOrdered[E constraints.Ordered](data []E, a, m, b int) {
|
||||
// Avoid unnecessary recursions of symMerge
|
||||
// by direct insertion of data[a] into data[m:b]
|
||||
// if data[a:m] only contains one element.
|
||||
if m-a == 1 {
|
||||
// Use binary search to find the lowest index i
|
||||
// such that data[i] >= data[a] for m <= i < b.
|
||||
// Exit the search loop with i == b in case no such index exists.
|
||||
i := m
|
||||
j := b
|
||||
for i < j {
|
||||
h := int(uint(i+j) >> 1)
|
||||
if cmpLess(data[h], data[a]) {
|
||||
i = h + 1
|
||||
} else {
|
||||
j = h
|
||||
}
|
||||
}
|
||||
// Swap values until data[a] reaches the position before i.
|
||||
for k := a; k < i-1; k++ {
|
||||
data[k], data[k+1] = data[k+1], data[k]
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
// Avoid unnecessary recursions of symMerge
|
||||
// by direct insertion of data[m] into data[a:m]
|
||||
// if data[m:b] only contains one element.
|
||||
if b-m == 1 {
|
||||
// Use binary search to find the lowest index i
|
||||
// such that data[i] > data[m] for a <= i < m.
|
||||
// Exit the search loop with i == m in case no such index exists.
|
||||
i := a
|
||||
j := m
|
||||
for i < j {
|
||||
h := int(uint(i+j) >> 1)
|
||||
if !cmpLess(data[m], data[h]) {
|
||||
i = h + 1
|
||||
} else {
|
||||
j = h
|
||||
}
|
||||
}
|
||||
// Swap values until data[m] reaches the position i.
|
||||
for k := m; k > i; k-- {
|
||||
data[k], data[k-1] = data[k-1], data[k]
|
||||
}
|
||||
return
|
||||
}
|
||||
|
||||
mid := int(uint(a+b) >> 1)
|
||||
n := mid + m
|
||||
var start, r int
|
||||
if m > mid {
|
||||
start = n - b
|
||||
r = mid
|
||||
} else {
|
||||
start = a
|
||||
r = m
|
||||
}
|
||||
p := n - 1
|
||||
|
||||
for start < r {
|
||||
c := int(uint(start+r) >> 1)
|
||||
if !cmpLess(data[p-c], data[c]) {
|
||||
start = c + 1
|
||||
} else {
|
||||
r = c
|
||||
}
|
||||
}
|
||||
|
||||
end := n - start
|
||||
if start < m && m < end {
|
||||
rotateOrdered(data, start, m, end)
|
||||
}
|
||||
if a < start && start < mid {
|
||||
symMergeOrdered(data, a, start, mid)
|
||||
}
|
||||
if mid < end && end < b {
|
||||
symMergeOrdered(data, mid, end, b)
|
||||
}
|
||||
}
|
||||
|
||||
// rotateOrdered rotates two consecutive blocks u = data[a:m] and v = data[m:b] in data:
|
||||
// Data of the form 'x u v y' is changed to 'x v u y'.
|
||||
// rotate performs at most b-a many calls to data.Swap,
|
||||
// and it assumes non-degenerate arguments: a < m && m < b.
|
||||
func rotateOrdered[E constraints.Ordered](data []E, a, m, b int) {
|
||||
i := m - a
|
||||
j := b - m
|
||||
|
||||
for i != j {
|
||||
if i > j {
|
||||
swapRangeOrdered(data, m-i, m, j)
|
||||
i -= j
|
||||
} else {
|
||||
swapRangeOrdered(data, m-i, m+j-i, i)
|
||||
j -= i
|
||||
}
|
||||
}
|
||||
// i == j
|
||||
swapRangeOrdered(data, m-i, m, i)
|
||||
}
|
||||
10
vendor/modules.txt
vendored
10
vendor/modules.txt
vendored
@ -63,8 +63,8 @@ github.com/containerd/errdefs
|
||||
## explicit; go 1.19
|
||||
github.com/containerd/stargz-snapshotter/estargz
|
||||
github.com/containerd/stargz-snapshotter/estargz/errorutil
|
||||
# github.com/containers/common v0.58.3
|
||||
## explicit; go 1.20
|
||||
# github.com/containers/common v0.59.0
|
||||
## explicit; go 1.21
|
||||
github.com/containers/common/pkg/auth
|
||||
github.com/containers/common/pkg/capabilities
|
||||
github.com/containers/common/pkg/completion
|
||||
@ -522,8 +522,8 @@ github.com/spf13/cobra
|
||||
# github.com/spf13/pflag v1.0.5
|
||||
## explicit; go 1.12
|
||||
github.com/spf13/pflag
|
||||
# github.com/stefanberger/go-pkcs11uri v0.0.0-20201008174630-78d3cae3a980
|
||||
## explicit
|
||||
# github.com/stefanberger/go-pkcs11uri v0.0.0-20230803200340-78284954bff6
|
||||
## explicit; go 1.19
|
||||
github.com/stefanberger/go-pkcs11uri
|
||||
# github.com/stretchr/testify v1.9.0
|
||||
## explicit; go 1.17
|
||||
@ -634,9 +634,7 @@ golang.org/x/crypto/scrypt
|
||||
golang.org/x/crypto/sha3
|
||||
# golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842
|
||||
## explicit; go 1.20
|
||||
golang.org/x/exp/constraints
|
||||
golang.org/x/exp/maps
|
||||
golang.org/x/exp/slices
|
||||
# golang.org/x/mod v0.17.0
|
||||
## explicit; go 1.18
|
||||
golang.org/x/mod/sumdb/note
|
||||
|
||||
Loading…
Reference in New Issue
Block a user