mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-02 11:10:18 +00:00
84 lines
2.1 KiB
Go
84 lines
2.1 KiB
Go
/*
|
|
Copyright 2023 The Kubernetes 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 library
|
|
|
|
import (
|
|
"math"
|
|
|
|
"github.com/google/cel-go/cel"
|
|
"github.com/google/cel-go/common/types"
|
|
"github.com/google/cel-go/common/types/ref"
|
|
)
|
|
|
|
// Test provides a test() function that returns true.
|
|
func Test(options ...TestOption) cel.EnvOption {
|
|
t := &testLib{version: math.MaxUint32}
|
|
for _, o := range options {
|
|
t = o(t)
|
|
}
|
|
return cel.Lib(t)
|
|
}
|
|
|
|
type testLib struct {
|
|
version uint32
|
|
}
|
|
|
|
func (*testLib) LibraryName() string {
|
|
return "k8s.test"
|
|
}
|
|
|
|
type TestOption func(*testLib) *testLib
|
|
|
|
func TestVersion(version uint32) func(lib *testLib) *testLib {
|
|
return func(sl *testLib) *testLib {
|
|
sl.version = version
|
|
return sl
|
|
}
|
|
}
|
|
|
|
func (t *testLib) CompileOptions() []cel.EnvOption {
|
|
var options []cel.EnvOption
|
|
|
|
if t.version == 0 {
|
|
options = append(options, cel.Function("test",
|
|
cel.Overload("test", []*cel.Type{}, cel.BoolType,
|
|
cel.FunctionBinding(func(args ...ref.Val) ref.Val {
|
|
return types.True
|
|
}))))
|
|
}
|
|
|
|
if t.version >= 1 {
|
|
options = append(options, cel.Function("test",
|
|
cel.Overload("test", []*cel.Type{}, cel.BoolType,
|
|
cel.FunctionBinding(func(args ...ref.Val) ref.Val {
|
|
// Return false here so tests can observe which version of the function is registered
|
|
// Actual function libraries must not break backward compatibility
|
|
return types.False
|
|
}))))
|
|
options = append(options, cel.Function("testV1",
|
|
cel.Overload("testV1", []*cel.Type{}, cel.BoolType,
|
|
cel.FunctionBinding(func(args ...ref.Val) ref.Val {
|
|
return types.True
|
|
}))))
|
|
}
|
|
return options
|
|
}
|
|
|
|
func (*testLib) ProgramOptions() []cel.ProgramOption {
|
|
return []cel.ProgramOption{}
|
|
}
|