kilo/vendor/sigs.k8s.io/controller-tools/pkg/loader/visit.go
leonnicolas 36643b77b4
Use apiextension v1
- upgrade from apiextension v1beta1 to v1
 - generate yaml manifest for crd intead of applying it at runtime
  - users will have to apply the manifest with kubectl
 - kg and kgctl log an error if the crd is not present
 - now validation should actually work

Signed-off-by: leonnicolas <leonloechner@gmx.de>
2021-06-14 12:59:33 +02:00

82 lines
2.0 KiB
Go

/*
Copyright 2019 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 loader
import (
"go/ast"
"reflect"
"strconv"
)
// TypeCallback is a callback called for each raw AST (gendecl, typespec) combo.
type TypeCallback func(file *ast.File, decl *ast.GenDecl, spec *ast.TypeSpec)
// EachType calls the given callback for each (gendecl, typespec) combo in the
// given package. Generally, using markers.EachType is better when working
// with marker data, and has a more convinient representation.
func EachType(pkg *Package, cb TypeCallback) {
visitor := &typeVisitor{
callback: cb,
}
pkg.NeedSyntax()
for _, file := range pkg.Syntax {
visitor.file = file
ast.Walk(visitor, file)
}
}
// typeVisitor visits all TypeSpecs, calling the given callback for each.
type typeVisitor struct {
callback TypeCallback
decl *ast.GenDecl
file *ast.File
}
// Visit visits all TypeSpecs.
func (v *typeVisitor) Visit(node ast.Node) ast.Visitor {
if node == nil {
v.decl = nil
return v
}
switch typedNode := node.(type) {
case *ast.File:
v.file = typedNode
return v
case *ast.GenDecl:
v.decl = typedNode
return v
case *ast.TypeSpec:
v.callback(v.file, v.decl, typedNode)
return nil // don't recurse
default:
return nil
}
}
// ParseAstTag parses the given raw tag literal into a reflect.StructTag.
func ParseAstTag(tag *ast.BasicLit) reflect.StructTag {
if tag == nil {
return reflect.StructTag("")
}
tagStr, err := strconv.Unquote(tag.Value)
if err != nil {
return reflect.StructTag("")
}
return reflect.StructTag(tagStr)
}