mirror of
https://github.com/ii64/sonic.git
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101 lines
No EOL
2.8 KiB
Go
101 lines
No EOL
2.8 KiB
Go
/*
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* Copyright 2021 ByteDance Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//go:generate make
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package sonic
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import (
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`reflect`
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`github.com/bytedance/sonic/ast`
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`github.com/bytedance/sonic/decoder`
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`github.com/bytedance/sonic/encoder`
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`github.com/bytedance/sonic/internal/native/types`
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)
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const (
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_SpaceMask = (1 << ' ') | (1 << '\t') | (1 << '\r') | (1 << '\n')
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)
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// Marshal returns the JSON encoding of v.
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func Marshal(val interface{}) ([]byte, error) {
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return encoder.Encode(val, 0)
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}
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// Unmarshal parses the JSON-encoded data and stores the result in the value
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// pointed to by v.
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func Unmarshal(buf []byte, val interface{}) error {
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return UnmarshalString(string(buf), val)
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}
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// UnmarshalString is like Unmarshal, except buf is a string.
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func UnmarshalString(buf string, val interface{}) error {
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dec := decoder.NewDecoder(buf)
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err := dec.Decode(val)
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pos := dec.Pos()
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/* check for errors */
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if err != nil {
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return err
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}
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/* skip all the trailing spaces */
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if pos != len(buf) {
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for pos < len(buf) && (_SpaceMask & (1 << buf[pos])) != 0 {
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pos++
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}
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}
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/* then it must be at EOF */
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if pos == len(buf) {
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return nil
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}
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/* junk after JSON value */
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return decoder.SyntaxError {
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Src : buf,
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Pos : dec.Pos(),
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Code : types.ERR_INVALID_CHAR,
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}
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}
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// Pretouch compiles vt ahead-of-time to avoid JIT compilation on-the-fly, in
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// order to reduce the first-hit latency.
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func Pretouch(vt reflect.Type) error {
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if err := encoder.Pretouch(vt); err != nil {
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return err
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} else if err = decoder.Pretouch(vt); err != nil {
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return err
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} else {
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return nil
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}
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}
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// Get searches the given path json,
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// and returns its representing ast.Node.
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//
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// Each path arg must be integer or string:
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// - Integer means searching current node as array
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// - String means searching current node as object
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func Get(src []byte, path ...interface{}) (ast.Node, error) {
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return GetFromString(string(src), path...)
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}
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// GetFromString is same with Get except src is string,
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// which can reduce unnecessary memory copy.
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func GetFromString(src string, path ...interface{}) (ast.Node, error) {
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return ast.NewSearcher(src).GetByPath(path...)
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} |