go-json/decode_compile_norace.go

25 lines
504 B
Go

// +build !race
package json
import "unsafe"
func decodeCompileToGetDecoder(typ *rtype) (decoder, error) {
typeptr := uintptr(unsafe.Pointer(typ))
if typeptr > maxTypeAddr {
return decodeCompileToGetDecoderSlowPath(typeptr, typ)
}
index := (typeptr - baseTypeAddr) >> typeAddrShift
if dec := cachedDecoder[index]; dec != nil {
return dec, nil
}
dec, err := decodeCompileHead(typ, map[uintptr]decoder{})
if err != nil {
return nil, err
}
cachedDecoder[index] = dec
return dec, nil
}