1 // Copyright 2019, OpenCensus Authors
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
7 // http://www.apache.org/licenses/LICENSE-2.0
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
21 // wrappedBody returns a wrapped version of the original
22 // Body and only implements the same combination of additional
23 // interfaces as the original.
24 func wrappedBody(wrapper io.ReadCloser, body io.ReadCloser) io.ReadCloser {
26 wr, i0 = body.(io.Writer)