/
write.go
30 lines (27 loc) · 1.19 KB
/
write.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
// Licensed to the Apache Software Foundation (ASF) under one or more
// contributor license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright ownership.
// The ASF licenses this file to You 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 ioutilx
import (
"io"
"unsafe"
)
// WriteUnsafe writes the buffer to the given writer, but breaks
// escape analysis so that the passed in []byte can be allocated
// to the stack. Use with caution, and only when you're certain
// the writer doesn't retain the passed in byte buffer.
func WriteUnsafe(w io.Writer, b []byte) (int, error) {
ret := *(*[]byte)(noescape(unsafe.Pointer(&b)))
return w.Write(ret)
}