diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cmd/compile/internal/gc/fmt.go | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/cmd/compile/internal/gc/fmt.go b/src/cmd/compile/internal/gc/fmt.go index 54886a900b..d7fc5416e2 100644 --- a/src/cmd/compile/internal/gc/fmt.go +++ b/src/cmd/compile/internal/gc/fmt.go @@ -12,6 +12,7 @@ import ( "io" "strconv" "strings" + "sync" "unicode/utf8" ) @@ -651,10 +652,19 @@ var basicnames = []string{ TBLANK: "blank", } +var tconvBufferPool = sync.Pool{ + New: func() interface{} { + return new(bytes.Buffer) + }, +} + func tconv(t *types.Type, flag FmtFlag, mode fmtMode) string { - b := bytes.NewBuffer(make([]byte, 0, 64)) - tconv2(b, t, flag, mode, nil) - return b.String() + buf := tconvBufferPool.Get().(*bytes.Buffer) + buf.Reset() + defer tconvBufferPool.Put(buf) + + tconv2(buf, t, flag, mode, nil) + return types.InternString(buf.Bytes()) } // tconv2 writes a string representation of t to b. |