mirror of
https://github.com/superseriousbusiness/gotosocial
synced 2024-12-12 08:36:31 +01:00
36 lines
1.1 KiB
Go
36 lines
1.1 KiB
Go
package base64x
|
|
|
|
import (
|
|
`reflect`
|
|
`unsafe`
|
|
)
|
|
|
|
func mem2str(v []byte) (s string) {
|
|
(*reflect.StringHeader)(unsafe.Pointer(&s)).Len = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Len
|
|
(*reflect.StringHeader)(unsafe.Pointer(&s)).Data = (*reflect.SliceHeader)(unsafe.Pointer(&v)).Data
|
|
return
|
|
}
|
|
|
|
func str2mem(s string) (v []byte) {
|
|
(*reflect.SliceHeader)(unsafe.Pointer(&v)).Cap = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
|
|
(*reflect.SliceHeader)(unsafe.Pointer(&v)).Len = (*reflect.StringHeader)(unsafe.Pointer(&s)).Len
|
|
(*reflect.SliceHeader)(unsafe.Pointer(&v)).Data = (*reflect.StringHeader)(unsafe.Pointer(&s)).Data
|
|
return
|
|
}
|
|
|
|
func mem2addr(v []byte) unsafe.Pointer {
|
|
return *(*unsafe.Pointer)(unsafe.Pointer(&v))
|
|
}
|
|
|
|
// NoEscape hides a pointer from escape analysis. NoEscape is
|
|
// the identity function but escape analysis doesn't think the
|
|
// output depends on the input. NoEscape is inlined and currently
|
|
// compiles down to zero instructions.
|
|
// USE CAREFULLY!
|
|
//go:nosplit
|
|
//goland:noinspection GoVetUnsafePointer
|
|
func noEscape(p unsafe.Pointer) unsafe.Pointer {
|
|
x := uintptr(p)
|
|
return unsafe.Pointer(x ^ 0)
|
|
}
|