ceph-csi/vendor/github.com/google/cel-go/interpreter/coster.go

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// Copyright 2020 Google LLC
//
// 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 interpreter
import "math"
// TODO: remove Coster.
// Coster calculates the heuristic cost incurred during evaluation.
// Deprecated: Please migrate cel.EstimateCost, it supports length estimates for input data and cost estimates for
// extension functions.
type Coster interface {
Cost() (min, max int64)
}
// estimateCost returns the heuristic cost interval for the program.
func estimateCost(i interface{}) (min, max int64) {
c, ok := i.(Coster)
if !ok {
return 0, math.MaxInt64
}
return c.Cost()
}