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@ ProgramNode (location: (1,0)-(1,40))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(1,40))
└── body: (length: 1)
└── @ DefNode (location: (1,0)-(1,40))
├── name: :foo
├── name_loc: (1,4)-(1,7) = "foo"
├── receiver: ∅
├── parameters:
│ @ ParametersNode (location: (1,8)-(1,17))
│ ├── requireds: (length: 2)
│ │ ├── @ RequiredParameterNode (location: (1,8)-(1,9))
│ │ │ ├── flags: ∅
│ │ │ └── name: :a
│ │ └── @ RequiredParameterNode (location: (1,11)-(1,12))
│ │ ├── flags: ∅
│ │ └── name: :b
│ ├── optionals: (length: 0)
│ ├── rest: ∅
│ ├── posts: (length: 0)
│ ├── keywords: (length: 0)
│ ├── keyword_rest:
│ │ @ ForwardingParameterNode (location: (1,14)-(1,17))
│ └── block: ∅
├── body:
│ @ StatementsNode (location: (1,20)-(1,35))
│ └── body: (length: 1)
│ └── @ CallNode (location: (1,20)-(1,35))
│ ├── flags: ignore_visibility
│ ├── receiver: ∅
│ ├── call_operator_loc: ∅
│ ├── name: :bar
│ ├── message_loc: (1,20)-(1,23) = "bar"
│ ├── opening_loc: (1,23)-(1,24) = "("
│ ├── arguments:
│ │ @ ArgumentsNode (location: (1,24)-(1,34))
│ │ ├── flags: ∅
│ │ └── arguments: (length: 3)
│ │ ├── @ LocalVariableReadNode (location: (1,24)-(1,25))
│ │ │ ├── name: :a
│ │ │ └── depth: 0
│ │ ├── @ IntegerNode (location: (1,27)-(1,29))
│ │ │ ├── flags: decimal
│ │ │ └── value: 42
│ │ └── @ ForwardingArgumentsNode (location: (1,31)-(1,34))
│ ├── closing_loc: (1,34)-(1,35) = ")"
│ └── block: ∅
├── locals: [:a, :b]
├── def_keyword_loc: (1,0)-(1,3) = "def"
├── operator_loc: ∅
├── lparen_loc: (1,7)-(1,8) = "("
├── rparen_loc: (1,17)-(1,18) = ")"
├── equal_loc: ∅
└── end_keyword_loc: (1,37)-(1,40) = "end"
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