---
- name: Tags on Empty Scalars
  from: NimYAML tests
  tags: tag scalar
  yaml: |
    - !!str
    -
      !!null : a
      b: !!str
    - !!str : !!null
  tree: |
    +STR
     +DOC
      +SEQ
       =VAL <tag:yaml.org,2002:str> :
       +MAP
        =VAL <tag:yaml.org,2002:null> :
        =VAL :a
        =VAL :b
        =VAL <tag:yaml.org,2002:str> :
       -MAP
       +MAP
        =VAL <tag:yaml.org,2002:str> :
        =VAL <tag:yaml.org,2002:null> :
       -MAP
      -SEQ
     -DOC
    -STR
  dump: |
    - !!str
    - !!null : a
      b: !!str
    - !!str : !!null