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sonic/encoder/primitives.go
liu 1443eb3bcf
fix: move large-size local array to _Stack (#162)
* fix: move large-size local array to _Stack

* fix: adjust jsonstate and add alwaysinline

* fix: initialize types.JsonState's dbuf at prologue

* fix: replace `always_inline` with `inline`

* fix: remove unused types

* feat: update asm2asm

* fix: check stack size befor call JIT function

Co-authored-by: liuqiang <liuqiang.06@bytedance.com>
Co-authored-by: duanyi.aster <duanyi.aster@bytedance.com>
2021-12-30 14:51:23 +08:00

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2.6 KiB
Go

/*
* Copyright 2021 ByteDance Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package encoder
import (
`encoding`
`encoding/json`
`unsafe`
`github.com/bytedance/sonic/internal/native`
`github.com/bytedance/sonic/internal/rt`
)
/** Encoder Primitives **/
func encodeNil(rb *[]byte) error {
*rb = append(*rb, 'n', 'u', 'l', 'l')
return nil
}
func encodeString(buf *[]byte, val string) error {
var sidx int
var pbuf *rt.GoSlice
var pstr *rt.GoString
/* opening quote */
*buf = append(*buf, '"')
pbuf = (*rt.GoSlice)(unsafe.Pointer(buf))
pstr = (*rt.GoString)(unsafe.Pointer(&val))
/* encode with native library */
for sidx < pstr.Len {
sn := pstr.Len - sidx
dn := pbuf.Cap - pbuf.Len
sp := padd(pstr.Ptr, sidx)
dp := padd(pbuf.Ptr, pbuf.Len)
nb := native.Quote(sp, sn, dp, &dn, 0)
/* check for errors */
if pbuf.Len += dn; nb >= 0 {
break
}
/* not enough space, grow the slice and try again */
sidx += ^nb
*pbuf = growslice(rt.UnpackType(byteType), *pbuf, pbuf.Cap * 2)
}
/* closing quote */
*buf = append(*buf, '"')
return nil
}
func encodeTypedPointer(buf *[]byte, vt *rt.GoType, vp *unsafe.Pointer, sb *_Stack, fv uint64) error {
if vt == nil {
return encodeNil(buf)
} else if fn, err := findOrCompile(vt); err != nil {
return err
} else if (vt.KindFlags & rt.F_direct) == 0 {
rt.MoreStack(_FP_size + native.MaxFrameSize)
return fn(buf, *vp, sb, fv)
} else {
rt.MoreStack(_FP_size + native.MaxFrameSize)
return fn(buf, unsafe.Pointer(vp), sb, fv)
}
}
func encodeJsonMarshaler(buf *[]byte, val json.Marshaler) error {
if ret, err := val.MarshalJSON(); err != nil {
return err
} else {
return compact(buf, ret)
}
}
func encodeTextMarshaler(buf *[]byte, val encoding.TextMarshaler) error {
if ret, err := val.MarshalText(); err != nil {
return err
} else {
return encodeString(buf, rt.Mem2Str(ret))
}
}