diff options
Diffstat (limited to 'vendor/github.com/goccy/go-json/internal/decoder/compile.go')
| -rw-r--r-- | vendor/github.com/goccy/go-json/internal/decoder/compile.go | 18 |
1 files changed, 12 insertions, 6 deletions
diff --git a/vendor/github.com/goccy/go-json/internal/decoder/compile.go b/vendor/github.com/goccy/go-json/internal/decoder/compile.go index fab643764..8ad50936c 100644 --- a/vendor/github.com/goccy/go-json/internal/decoder/compile.go +++ b/vendor/github.com/goccy/go-json/internal/decoder/compile.go @@ -5,6 +5,7 @@ import ( "fmt" "reflect" "strings" + "sync" "sync/atomic" "unicode" "unsafe" @@ -17,22 +18,27 @@ var ( typeAddr *runtime.TypeAddr cachedDecoderMap unsafe.Pointer // map[uintptr]decoder cachedDecoder []Decoder + initOnce sync.Once ) -func init() { - typeAddr = runtime.AnalyzeTypeAddr() - if typeAddr == nil { - typeAddr = &runtime.TypeAddr{} - } - cachedDecoder = make([]Decoder, typeAddr.AddrRange>>typeAddr.AddrShift+1) +func initDecoder() { + initOnce.Do(func() { + typeAddr = runtime.AnalyzeTypeAddr() + if typeAddr == nil { + typeAddr = &runtime.TypeAddr{} + } + cachedDecoder = make([]Decoder, typeAddr.AddrRange>>typeAddr.AddrShift+1) + }) } func loadDecoderMap() map[uintptr]Decoder { + initDecoder() p := atomic.LoadPointer(&cachedDecoderMap) return *(*map[uintptr]Decoder)(unsafe.Pointer(&p)) } func storeDecoder(typ uintptr, dec Decoder, m map[uintptr]Decoder) { + initDecoder() newDecoderMap := make(map[uintptr]Decoder, len(m)+1) newDecoderMap[typ] = dec |