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@ ProgramNode (location: (1,0)-(10,17))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(10,17))
└── body: (length: 10)
├── @ CallNode (location: (1,0)-(1,1))
│ ├── flags: variable_call, ignore_visibility
│ ├── receiver: ∅
│ ├── call_operator_loc: ∅
│ ├── name: :a
│ ├── message_loc: (1,0)-(1,1) = "a"
│ ├── opening_loc: ∅
│ ├── arguments: ∅
│ ├── closing_loc: ∅
│ └── block: ∅
├── @ InstanceVariableReadNode (location: (2,0)-(2,2))
│ └── name: :@a
├── @ ClassVariableReadNode (location: (3,0)-(3,3))
│ └── name: :@@a
├── @ GlobalVariableReadNode (location: (4,0)-(4,2))
│ └── name: :$a
├── @ NumberedReferenceReadNode (location: (5,0)-(5,2))
│ └── number: 1
├── @ BackReferenceReadNode (location: (6,0)-(6,2))
│ └── name: :$`
├── @ ConstantReadNode (location: (7,0)-(7,5))
│ └── name: :CONST
├── @ ConstantPathNode (location: (8,0)-(8,13))
│ ├── parent:
│ │ @ ConstantReadNode (location: (8,0)-(8,6))
│ │ └── name: :SCOPED
│ ├── child:
│ │ @ ConstantReadNode (location: (8,8)-(8,13))
│ │ └── name: :CONST
│ └── delimiter_loc: (8,6)-(8,8) = "::"
├── @ ConstantPathNode (location: (9,0)-(9,10))
│ ├── parent: ∅
│ ├── child:
│ │ @ ConstantReadNode (location: (9,2)-(9,10))
│ │ └── name: :TOPLEVEL
│ └── delimiter_loc: (9,0)-(9,2) = "::"
└── @ ConstantPathNode (location: (10,0)-(10,17))
├── parent:
│ @ ConstantPathNode (location: (10,0)-(10,10))
│ ├── parent: ∅
│ ├── child:
│ │ @ ConstantReadNode (location: (10,2)-(10,10))
│ │ └── name: :TOPLEVEL
│ └── delimiter_loc: (10,0)-(10,2) = "::"
├── child:
│ @ ConstantReadNode (location: (10,12)-(10,17))
│ └── name: :CONST
└── delimiter_loc: (10,10)-(10,12) = "::"
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