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@ ProgramNode (location: (1,0)-(3,3))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(3,3))
└── body: (length: 1)
└── @ CallNode (location: (1,0)-(3,3))
├── receiver: ∅
├── call_operator_loc: ∅
├── name: :f
├── message_loc: (1,0)-(1,1) = "f"
├── opening_loc: (1,1)-(1,2) = "("
├── arguments:
│ @ ArgumentsNode (location: (1,2)-(1,3))
│ ├── arguments: (length: 1)
│ │ └── @ CallNode (location: (1,2)-(1,3))
│ │ ├── receiver: ∅
│ │ ├── call_operator_loc: ∅
│ │ ├── name: :a
│ │ ├── message_loc: (1,2)-(1,3) = "a"
│ │ ├── opening_loc: ∅
│ │ ├── arguments: ∅
│ │ ├── closing_loc: ∅
│ │ ├── block: ∅
│ │ └── flags: variable_call
│ └── flags: ∅
├── closing_loc: (1,3)-(1,4) = ")"
├── block:
│ @ BlockNode (location: (1,5)-(3,3))
│ ├── locals: [:x, :y]
│ ├── parameters:
│ │ @ BlockParametersNode (location: (1,8)-(1,14))
│ │ ├── parameters:
│ │ │ @ ParametersNode (location: (1,9)-(1,13))
│ │ │ ├── requireds: (length: 2)
│ │ │ │ ├── @ RequiredParameterNode (location: (1,9)-(1,10))
│ │ │ │ │ └── name: :x
│ │ │ │ └── @ RequiredParameterNode (location: (1,12)-(1,13))
│ │ │ │ └── name: :y
│ │ │ ├── optionals: (length: 0)
│ │ │ ├── rest: ∅
│ │ │ ├── posts: (length: 0)
│ │ │ ├── keywords: (length: 0)
│ │ │ ├── keyword_rest: ∅
│ │ │ └── block: ∅
│ │ ├── locals: (length: 0)
│ │ ├── opening_loc: (1,8)-(1,9) = "|"
│ │ └── closing_loc: (1,13)-(1,14) = "|"
│ ├── body:
│ │ @ StatementsNode (location: (2,2)-(2,7))
│ │ └── body: (length: 1)
│ │ └── @ CallNode (location: (2,2)-(2,7))
│ │ ├── receiver:
│ │ │ @ LocalVariableReadNode (location: (2,2)-(2,3))
│ │ │ ├── name: :x
│ │ │ └── depth: 0
│ │ ├── call_operator_loc: ∅
│ │ ├── name: :+
│ │ ├── message_loc: (2,4)-(2,5) = "+"
│ │ ├── opening_loc: ∅
│ │ ├── arguments:
│ │ │ @ ArgumentsNode (location: (2,6)-(2,7))
│ │ │ ├── arguments: (length: 1)
│ │ │ │ └── @ LocalVariableReadNode (location: (2,6)-(2,7))
│ │ │ │ ├── name: :y
│ │ │ │ └── depth: 0
│ │ │ └── flags: ∅
│ │ ├── closing_loc: ∅
│ │ ├── block: ∅
│ │ └── flags: ∅
│ ├── opening_loc: (1,5)-(1,7) = "do"
│ ├── closing_loc: (3,0)-(3,3) = "end"
│ └── numbered_parameters: 0
└── flags: ∅
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