perf(location): do not make a copy of data

internal/location/file.go

@@ -22,6 +22,8 @@ func (f File) IsZero() bool {
 }
 
 // NewFile creates a new File.
+//
+// Do not modify the data after calling this function, Lines will point to it.
 func NewFile(name, source string, data []byte) File {
 	f := File{
 		Name:   name,

internal/location/lines.go

@@ -2,8 +2,6 @@ package location
 
 import (
 	"bytes"
-
-	"golang.org/x/exp/slices"
 )
 
 // Lines is a sorted slice of newline offsets.
@@ -51,7 +49,7 @@ func (l Lines) Line(n int) (start, end int) {
 
 // Collect fills the given slice with the offset of newlines.
 func (l *Lines) Collect(data []byte) {
-	l.data = slices.Clone(data)
+	l.data = data
 	l.lines = l.lines[:0]
 
 	var (

jsonschema/resolve.go

@@ -48,7 +48,7 @@ func (p *Parser) getResolver(loc string) (r resolver, rerr error) {
 
 	r = resolver{
 		ReferenceResolver: NewRootResolver(&node),
-		file:              location.NewFile(loc, loc, raw),
+		file:              file,
 	}
 	p.schemas[loc] = r