| // Copyright Istio Authors |
| // |
| // 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 echo |
| |
| var noChecker Checker = func(_ CallResult, err error) error { |
| return err |
| } |
| |
| // Checker inspects echo call results for errors. |
| type Checker func(CallResult, error) error |
| |
| func (c Checker) Check(result CallResult, err error) error { |
| return c(result, err) |
| } |
| |
| // NoChecker provides a Checker that returns the original raw call error, unaltered. |
| func NoChecker() Checker { |
| return noChecker |
| } |