add HashTrieMap

Author: wwqgtxx

hash/maphash/comparable_go120.go

@@ -4,13 +4,10 @@ package maphash
 
 import (
 	"github.com/metacubex/backport-std/internal/abi"
+	"github.com/metacubex/backport-std/internal/goarch"
 	"unsafe"
 )
 
-// ptrSize is the size of a pointer in bytes - unsafe.Sizeof(uintptr(0)) but as an ideal constant.
-// It is also the size of the machine's native word size (that is, 4 on 32-bit systems, 8 on 64-bit).
-const ptrSize = 4 << (^uintptr(0) >> 63)
-
 func Comparable[T comparable](s Seed, v T) uint64 {
 	return comparableHash(*(*seedTyp)(unsafe.Pointer(&s)), v)
 }
@@ -28,7 +25,7 @@ func comparableHash[T comparable](seed seedTyp, v T) uint64 {
 
 	p := abi.Escape(unsafe.Pointer(&v))
 
-	if ptrSize == 8 {
+	if goarch.PtrSize == 8 {
 		return uint64(hasher(p, uintptr(s)))
 	}
 	lo := hasher(p, uintptr(s))

internal/goarch/ptrsize.go

@@ -0,0 +1,5 @@
+package goarch
+
+// PtrSize is the size of a pointer in bytes - unsafe.Sizeof(uintptr(0)) but as an ideal constant.
+// It is also the size of the machine's native word size (that is, 4 on 32-bit systems, 8 on 64-bit).
+const PtrSize = 4 << (^uintptr(0) >> 63)