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@ ProgramNode (location: (1,0)-(1,25))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(1,25))
└── body: (length: 1)
└── @ CaseNode (location: (1,0)-(1,25))
├── predicate:
│ @ CallNode (location: (1,5)-(1,6))
│ ├── flags: variable_call, ignore_visibility
│ ├── receiver: ∅
│ ├── call_operator_loc: ∅
│ ├── name: :a
│ ├── message_loc: (1,5)-(1,6) = "a"
│ ├── opening_loc: ∅
│ ├── arguments: ∅
│ ├── closing_loc: ∅
│ └── block: ∅
├── conditions: (length: 1)
│ └── @ WhenNode (location: (1,8)-(1,20))
│ ├── keyword_loc: (1,8)-(1,12) = "when"
│ ├── conditions: (length: 1)
│ │ └── @ SplatNode (location: (1,13)-(1,15))
│ │ ├── operator_loc: (1,13)-(1,14) = "*"
│ │ └── expression:
│ │ @ CallNode (location: (1,14)-(1,15))
│ │ ├── flags: variable_call, ignore_visibility
│ │ ├── receiver: ∅
│ │ ├── call_operator_loc: ∅
│ │ ├── name: :b
│ │ ├── message_loc: (1,14)-(1,15) = "b"
│ │ ├── opening_loc: ∅
│ │ ├── arguments: ∅
│ │ ├── closing_loc: ∅
│ │ └── block: ∅
│ ├── then_keyword_loc: (1,16)-(1,20) = "then"
│ └── statements: ∅
├── consequent: ∅
├── case_keyword_loc: (1,0)-(1,4) = "case"
└── end_keyword_loc: (1,22)-(1,25) = "end"
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