66 lines
1.8 KiB
Go
Vendored
66 lines
1.8 KiB
Go
Vendored
// +build race
|
|
|
|
package encoder
|
|
|
|
import (
|
|
"sync"
|
|
"unsafe"
|
|
|
|
"github.com/goccy/go-json/internal/runtime"
|
|
)
|
|
|
|
var setsMu sync.RWMutex
|
|
|
|
func CompileToGetCodeSet(typeptr uintptr) (*OpcodeSet, error) {
|
|
if typeptr > typeAddr.MaxTypeAddr {
|
|
return compileToGetCodeSetSlowPath(typeptr)
|
|
}
|
|
index := (typeptr - typeAddr.BaseTypeAddr) >> typeAddr.AddrShift
|
|
setsMu.RLock()
|
|
if codeSet := cachedOpcodeSets[index]; codeSet != nil {
|
|
setsMu.RUnlock()
|
|
return codeSet, nil
|
|
}
|
|
setsMu.RUnlock()
|
|
|
|
// noescape trick for header.typ ( reflect.*rtype )
|
|
copiedType := *(**runtime.Type)(unsafe.Pointer(&typeptr))
|
|
|
|
noescapeKeyCode, err := compileHead(&compileContext{
|
|
typ: copiedType,
|
|
structTypeToCompiledCode: map[uintptr]*CompiledCode{},
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
escapeKeyCode, err := compileHead(&compileContext{
|
|
typ: copiedType,
|
|
structTypeToCompiledCode: map[uintptr]*CompiledCode{},
|
|
escapeKey: true,
|
|
})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
noescapeKeyCode = copyOpcode(noescapeKeyCode)
|
|
escapeKeyCode = copyOpcode(escapeKeyCode)
|
|
setTotalLengthToInterfaceOp(noescapeKeyCode)
|
|
setTotalLengthToInterfaceOp(escapeKeyCode)
|
|
interfaceNoescapeKeyCode := copyToInterfaceOpcode(noescapeKeyCode)
|
|
interfaceEscapeKeyCode := copyToInterfaceOpcode(escapeKeyCode)
|
|
codeLength := noescapeKeyCode.TotalLength()
|
|
codeSet := &OpcodeSet{
|
|
Type: copiedType,
|
|
NoescapeKeyCode: noescapeKeyCode,
|
|
EscapeKeyCode: escapeKeyCode,
|
|
InterfaceNoescapeKeyCode: interfaceNoescapeKeyCode,
|
|
InterfaceEscapeKeyCode: interfaceEscapeKeyCode,
|
|
CodeLength: codeLength,
|
|
EndCode: ToEndCode(interfaceNoescapeKeyCode),
|
|
}
|
|
setsMu.Lock()
|
|
cachedOpcodeSets[index] = codeSet
|
|
setsMu.Unlock()
|
|
return codeSet, nil
|
|
}
|