Avoid io.Writer causing buffers to escape to the heap

1 files changed, 3 insertions, 2 deletions

diff --git a/internal/jsonstring/encode_string.go b/internal/jsonstring/encode_string.go
index 1b0c68a..fec2cc0 100644
--- a/internal/jsonstring/encode_string.go
+++ b/internal/jsonstring/encode_string.go
@@ -10,6 +10,7 @@ import (
 	"unicode/utf8"
 
 	"git.lukeshu.com/go/lowmemjson/internal/fastio"
+	"git.lukeshu.com/go/lowmemjson/internal/fastio/noescape"
 )
 
 // BackslashEscapeMode is describe in the main lowmemjson package
@@ -35,7 +36,7 @@ func writeStringUnicodeEscape(w io.Writer, c rune) error {
 		alphabet[(c>>4)&0xf],
 		alphabet[(c>>0)&0xf],
 	}
-	_, err := w.Write(buf[:])
+	_, err := noescape.Write(w, buf[:])
 	return err
 }
 
@@ -58,7 +59,7 @@ func writeStringShortEscape(w io.Writer, c rune) error {
 		panic(fmt.Errorf("should not happen: writeStringShortEscape called with invalid rune: %q", c))
 	}
 	buf := [2]byte{'\\', b}
-	_, err := w.Write(buf[:])
+	_, err := noescape.Write(w, buf[:])
 	return err
 }