package xx

import (
	"unsafe"

	"git.brut.systems/judah/xx/mem"
)

// New returns a newly allocated value with an initial value.
func New[T any](expr T) *T {
	p := new(T)
	*p = expr
	return p
}

// Copy copies src number of bytes into dst.
// Returns dst.
//
// Copy panics if src is smaller than dst.
func Copy[TDst any, TSrc any](dst *TDst, src *TSrc) *TDst {
	if mem.SizeOf[TSrc]() < mem.SizeOf[TDst]() {
		panic("copy: size of src must be >= dst")
	}
	mem.Copy(unsafe.Pointer(dst), unsafe.Pointer(src), mem.SizeOf[TDst]())
	return dst
}

// Clone returns a newly allocated shallow copy of the given value.
func Clone[T any](value *T) *T {
	return Copy(new(T), value)
}

func BoolUint(b bool) uint {
	return uint(*(*uint8)(unsafe.Pointer(&b)))
}