| // Copyright 2022 The Dawn 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 container | |
| // key is the constraint for container keys. | |
| // As Map and Set sort before returning a slice, the constraint is equivalent to | |
| // the constraints.Ordered in x/exp, instead of 'comparable': | |
| // https://cs.opensource.google/go/x/exp/+/master:constraints/constraints.go | |
| type key interface { | |
| ~int | ~int8 | ~int16 | ~int32 | ~int64 | ~uint | ~uint8 | ~uint16 | | |
| ~uint32 | ~uint64 | ~uintptr | ~float32 | ~float64 | ~string | |
| } |