go-json/internal/encoder/compiler_norace.go

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// +build !race
package encoder
import (
"unsafe"
"github.com/goccy/go-json/internal/runtime"
)
func CompileToGetCodeSet(typeptr uintptr) (*OpcodeSet, error) {
if typeptr > typeAddr.MaxTypeAddr {
return compileToGetCodeSetSlowPath(typeptr)
}
index := typeptr - typeAddr.BaseTypeAddr
if codeSet := cachedOpcodeSets[index]; codeSet != nil {
return codeSet, nil
}
// noescape trick for header.typ ( reflect.*rtype )
copiedType := *(**runtime.Type)(unsafe.Pointer(&typeptr))
code, err := compileHead(&compileContext{
typ: copiedType,
structTypeToCompiledCode: map[uintptr]*CompiledCode{},
})
if err != nil {
return nil, err
}
code = copyOpcode(code)
codeLength := code.TotalLength()
codeSet := &OpcodeSet{
Code: code,
CodeLength: codeLength,
}
cachedOpcodeSets[index] = codeSet
return codeSet, nil
}