mapnode.go

Documentation: sigs.k8s.io/kustomize/kyaml/yaml

     1  // Copyright 2019 The Kubernetes Authors.
     2  // SPDX-License-Identifier: Apache-2.0
     3  
     4  package yaml
     5  
     6  // MapNode wraps a field key and value.
     7  type MapNode struct {
     8  	Key   *RNode
     9  	Value *RNode
    10  }
    11  
    12  // IsNilOrEmpty returns true if the MapNode is nil,
    13  // has no value, or has a value that appears empty.
    14  func (mn *MapNode) IsNilOrEmpty() bool {
    15  	return mn == nil || mn.Value.IsNilOrEmpty()
    16  }
    17  
    18  type MapNodeSlice []*MapNode
    19  
    20  func (m MapNodeSlice) Keys() []*RNode {
    21  	var keys []*RNode
    22  	for i := range m {
    23  		if m[i] != nil {
    24  			keys = append(keys, m[i].Key)
    25  		}
    26  	}
    27  	return keys
    28  }
    29  
    30  func (m MapNodeSlice) Values() []*RNode {
    31  	var values []*RNode
    32  	for i := range m {
    33  		if m[i] != nil {
    34  			values = append(values, m[i].Value)
    35  		} else {
    36  			values = append(values, nil)
    37  		}
    38  	}
    39  	return values
    40  }
    41
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