hst: remove enablement json adapter

The go116 behaviour of built-in new function makes this cleaner.

Signed-off-by: Ophestra <cat@gensokyo.uk>

internal/store/header.go

@@ -14,22 +14,25 @@ import (
 const (
 	// entryHeaderMagic are magic bytes at the beginning of the state entry file.
 	entryHeaderMagic = "\x00\xff\xca\xfe"
-	// entryHeaderRevision follows entryHeaderMagic and is incremented for revisions of the format.
+	// entryHeaderRevision follows entryHeaderMagic and is incremented for
+	// revisions of the format.
 	entryHeaderRevision = "\x00\x00"
-	// entryHeaderSize is the fixed size of the header in bytes, including the enablement byte and its complement.
+	// entryHeaderSize is the fixed size of the header in bytes, including the
+	// enablement byte and its complement.
 	entryHeaderSize = len(entryHeaderMagic+entryHeaderRevision) + 2
 )
 
-// entryHeaderEncode encodes a state entry header for a [hst.Enablement] byte.
-func entryHeaderEncode(et hst.Enablement) *[entryHeaderSize]byte {
+// entryHeaderEncode encodes a state entry header for a [hst.Enablements] byte.
+func entryHeaderEncode(et hst.Enablements) *[entryHeaderSize]byte {
 	data := [entryHeaderSize]byte([]byte(
-		entryHeaderMagic + entryHeaderRevision + string([]hst.Enablement{et, ^et}),
+		entryHeaderMagic + entryHeaderRevision + string([]hst.Enablements{et, ^et}),
 	))
 	return &data
 }
 
-// entryHeaderDecode validates a state entry header and returns the [hst.Enablement] byte.
-func entryHeaderDecode(data *[entryHeaderSize]byte) (hst.Enablement, error) {
+// entryHeaderDecode validates a state entry header and returns the
+// [hst.Enablements] byte.
+func entryHeaderDecode(data *[entryHeaderSize]byte) (hst.Enablements, error) {
 	if magic := data[:len(entryHeaderMagic)]; string(magic) != entryHeaderMagic {
 		return 0, errors.New("invalid header " + hex.EncodeToString(magic))
 	}
@@ -41,7 +44,7 @@ func entryHeaderDecode(data *[entryHeaderSize]byte) (hst.Enablement, error) {
 	if et != ^data[len(entryHeaderMagic+entryHeaderRevision)+1] {
 		return 0, errors.New("header enablement value is inconsistent")
 	}
-	return hst.Enablement(et), nil
+	return hst.Enablements(et), nil
 }
 
 // EntrySizeError is returned for a file too small to hold a state entry header.
@@ -68,8 +71,8 @@ func entryCheckFile(fi os.FileInfo) error {
 	return nil
 }
 
-// entryReadHeader reads [hst.Enablement] from an [io.Reader].
-func entryReadHeader(r io.Reader) (hst.Enablement, error) {
+// entryReadHeader reads [hst.Enablements] from an [io.Reader].
+func entryReadHeader(r io.Reader) (hst.Enablements, error) {
 	var data [entryHeaderSize]byte
 	if n, err := r.Read(data[:]); err != nil {
 		return 0, err
@@ -79,8 +82,8 @@ func entryReadHeader(r io.Reader) (hst.Enablement, error) {
 	return entryHeaderDecode(&data)
 }
 
-// entryWriteHeader writes [hst.Enablement] header to an [io.Writer].
-func entryWriteHeader(w io.Writer, et hst.Enablement) error {
+// entryWriteHeader writes [hst.Enablements] header to an [io.Writer].
+func entryWriteHeader(w io.Writer, et hst.Enablements) error {
 	_, err := w.Write(entryHeaderEncode(et)[:])
 	return err
 }