github.com/bytedance/mockey@v1.2.10/internal/unsafereflect/name_below_1_17.go (about)

     1  //go:build !go1.17
     2  // +build !go1.17
     3  
     4  /*
     5   * Copyright 2023 ByteDance Inc.
     6   *
     7   * Licensed under the Apache License, Version 2.0 (the "License");
     8   * you may not use this file except in compliance with the License.
     9   * You may obtain a copy of the License at
    10   *
    11   *     http://www.apache.org/licenses/LICENSE-2.0
    12   *
    13   * Unless required by applicable law or agreed to in writing, software
    14   * distributed under the License is distributed on an "AS IS" BASIS,
    15   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    16   * See the License for the specific language governing permissions and
    17   * limitations under the License.
    18   */
    19  
    20  package unsafereflect
    21  
    22  import (
    23  	"unsafe"
    24  )
    25  
    26  // name is an encoded type name with optional extra data.
    27  type name struct {
    28  	bytes *byte
    29  }
    30  
    31  func (n name) name() (s string) {
    32  	if n.bytes == nil {
    33  		return
    34  	}
    35  	b := (*[4]byte)(unsafe.Pointer(n.bytes))
    36  
    37  	hdr := (*_String)(unsafe.Pointer(&s))
    38  	hdr.Data = unsafe.Pointer(&b[3])
    39  	hdr.Len = int(b[1])<<8 | int(b[2])
    40  	return s
    41  }