gotosocial/vendor/github.com/goccy/go-json/internal/decoder/compile_race.go
tobi f2e5bedea6
migrate go version to 1.17 (#203)
* migrate go version to 1.17

* update contributing
2021-09-10 14:42:14 +02:00

37 lines
681 B
Go

// +build race
package decoder
import (
"sync"
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
var decMu sync.RWMutex
func CompileToGetDecoder(typ *runtime.Type) (Decoder, error) {
typeptr := uintptr(unsafe.Pointer(typ))
if typeptr > typeAddr.MaxTypeAddr {
return compileToGetDecoderSlowPath(typeptr, typ)
}
index := (typeptr - typeAddr.BaseTypeAddr) >> typeAddr.AddrShift
decMu.RLock()
if dec := cachedDecoder[index]; dec != nil {
decMu.RUnlock()
return dec, nil
}
decMu.RUnlock()
dec, err := compileHead(typ, map[uintptr]Decoder{})
if err != nil {
return nil, err
}
decMu.Lock()
cachedDecoder[index] = dec
decMu.Unlock()
return dec, nil
}