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| author | 2025-08-21 16:41:50 +0200 | |
|---|---|---|
| committer | 2025-08-21 16:41:50 +0200 | |
| commit | a79f83cbded3fb1165b338ce316dc9f2217467ff (patch) | |
| tree | 4b4a2b7084aced51c0a691cee6352b4ecae90df8 /vendor/codeberg.org/gruf/go-mangler/v2/method.go | |
| parent | [chore] bump golangci-lint version in CI, disable var-naming package name che... (diff) | |
| download | gotosocial-a79f83cbded3fb1165b338ce316dc9f2217467ff.tar.xz | |
[chore] update dependencies (#4386)
- codeberg.org/gruf/go-bytesize v1.0.3 -> v1.0.4
- codeberg.org/gruf/go-kv/v2 v2.0.6 -> v2.0.7
- codeberg.org/gruf/go-mutexes v1.5.2 -> v1.5.3
- codeberg.org/gruf/go-structr v0.9.7 -> v0.9.8
- codeberg.org/gruf/go-ffmpreg v0.6.8 -> v0.6.9
- github.com/tomnomnom/linkheader HEAD@2018 -> HEAD@2025
all of the above codeberg.org/gruf updates are in preparation for Go1.25, except for bytesize, and also ffmpreg which is a rebuild with the latest version of ffmpeg (v5.1.7)
Reviewed-on: https://codeberg.org/superseriousbusiness/gotosocial/pulls/4386
Co-authored-by: kim <grufwub@gmail.com>
Co-committed-by: kim <grufwub@gmail.com>
Diffstat (limited to 'vendor/codeberg.org/gruf/go-mangler/v2/method.go')
| -rw-r--r-- | vendor/codeberg.org/gruf/go-mangler/v2/method.go | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/vendor/codeberg.org/gruf/go-mangler/v2/method.go b/vendor/codeberg.org/gruf/go-mangler/v2/method.go new file mode 100644 index 000000000..7a938d6ae --- /dev/null +++ b/vendor/codeberg.org/gruf/go-mangler/v2/method.go @@ -0,0 +1,105 @@ +package mangler + +import ( + "reflect" + "unsafe" + + "codeberg.org/gruf/go-xunsafe" +) + +var ( + // mangleable type for implement checks. + mangleableType = reflect.TypeFor[Mangleable]() +) + +type Mangleable interface { + Mangle(dst []byte) []byte +} + +// getMethodType returns a *possible* Mangler to handle case +// of a type that implements any known interface{} types, else nil. +func getMethodType(t xunsafe.TypeIter) Mangler { + switch { + case t.Type.Implements(mangleableType): + switch t.Type.Kind() { + case reflect.Interface: + return getInterfaceMangleableType(t) + default: + return getConcreteMangleableType(t) + } + default: + return nil + } +} + +// getInterfaceMangleableType returns a Mangler to handle case of an interface{} +// type that implements Mangleable{}, i.e. Mangleable{} itself and any superset of. +func getInterfaceMangleableType(t xunsafe.TypeIter) Mangler { + switch t.Indirect() && !t.IfaceIndir() { + case true: + return func(buf []byte, ptr unsafe.Pointer) []byte { + ptr = *(*unsafe.Pointer)(ptr) + if ptr == nil || (*xunsafe.Abi_NonEmptyInterface)(ptr).Data == nil { + buf = append(buf, '0') + return buf + } + v := *(*Mangleable)(ptr) + buf = append(buf, '1') + buf = v.Mangle(buf) + return buf + } + case false: + return func(buf []byte, ptr unsafe.Pointer) []byte { + if ptr == nil || (*xunsafe.Abi_NonEmptyInterface)(ptr).Data == nil { + buf = append(buf, '0') + return buf + } + v := *(*Mangleable)(ptr) + buf = append(buf, '1') + buf = v.Mangle(buf) + return buf + } + default: + panic("unreachable") + } +} + +// getConcreteMangleableType returns a Manlger to handle case of concrete +// (i.e. non-interface{}) type that has a Mangleable{} method receiver. +func getConcreteMangleableType(t xunsafe.TypeIter) Mangler { + itab := xunsafe.GetIfaceITab[Mangleable](t.Type) + switch { + case t.Indirect() && !t.IfaceIndir(): + return func(buf []byte, ptr unsafe.Pointer) []byte { + ptr = *(*unsafe.Pointer)(ptr) + if ptr == nil { + buf = append(buf, '0') + return buf + } + v := *(*Mangleable)(xunsafe.PackIface(itab, ptr)) + buf = append(buf, '1') + buf = v.Mangle(buf) + return buf + } + case t.Type.Kind() == reflect.Pointer && t.Type.Implements(mangleableType): + // if the interface implementation is received by + // value type, the pointer type will also support + // it but it requires an extra dereference check. + return func(buf []byte, ptr unsafe.Pointer) []byte { + if ptr == nil { + buf = append(buf, '0') + return buf + } + v := *(*Mangleable)(xunsafe.PackIface(itab, ptr)) + buf = append(buf, '1') + buf = v.Mangle(buf) + return buf + } + default: + return func(buf []byte, ptr unsafe.Pointer) []byte { + v := *(*Mangleable)(xunsafe.PackIface(itab, ptr)) + buf = v.Mangle(buf) + return buf + } + } +} |
