github.com/google/yamlfmt@v0.12.2-0.20240514121411-7f77800e2681/formatters/basic/anchors/check.go (about)

     1  // Copyright 2022 Google LLC
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package anchors
    16  
    17  import (
    18  	"errors"
    19  	"fmt"
    20  
    21  	"github.com/braydonk/yaml"
    22  )
    23  
    24  func Check(n yaml.Node) error {
    25  	if n.Kind == yaml.AliasNode {
    26  		return errors.New("alias node found")
    27  	}
    28  	if n.Anchor != "" {
    29  		return fmt.Errorf("node references anchor %q", n.Anchor)
    30  	}
    31  	for _, c := range n.Content {
    32  		if err := Check(*c); err != nil {
    33  			return err
    34  		}
    35  	}
    36  	return nil
    37  }