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@ ProgramNode (location: (1,0)-(5,11))
├── locals: []
└── statements:
@ StatementsNode (location: (1,0)-(5,11))
└── body: (length: 3)
├── @ CallOperatorWriteNode (location: (1,0)-(1,10))
│ ├── flags: ∅
│ ├── receiver:
│ │ @ CallNode (location: (1,0)-(1,3))
│ │ ├── flags: variable_call, ignore_visibility
│ │ ├── receiver: ∅
│ │ ├── call_operator_loc: ∅
│ │ ├── name: :foo
│ │ ├── message_loc: (1,0)-(1,3) = "foo"
│ │ ├── opening_loc: ∅
│ │ ├── arguments: ∅
│ │ ├── closing_loc: ∅
│ │ └── block: ∅
│ ├── call_operator_loc: (1,3)-(1,4) = "."
│ ├── message_loc: (1,4)-(1,5) = "A"
│ ├── read_name: :A
│ ├── write_name: :A=
│ ├── operator: :+
│ ├── operator_loc: (1,6)-(1,8) = "+="
│ └── value:
│ @ IntegerNode (location: (1,9)-(1,10))
│ ├── flags: decimal
│ └── value: 1
├── @ CallOperatorWriteNode (location: (3,0)-(3,10))
│ ├── flags: ∅
│ ├── receiver:
│ │ @ CallNode (location: (3,0)-(3,3))
│ │ ├── flags: variable_call, ignore_visibility
│ │ ├── receiver: ∅
│ │ ├── call_operator_loc: ∅
│ │ ├── name: :foo
│ │ ├── message_loc: (3,0)-(3,3) = "foo"
│ │ ├── opening_loc: ∅
│ │ ├── arguments: ∅
│ │ ├── closing_loc: ∅
│ │ └── block: ∅
│ ├── call_operator_loc: (3,3)-(3,4) = "."
│ ├── message_loc: (3,4)-(3,5) = "a"
│ ├── read_name: :a
│ ├── write_name: :a=
│ ├── operator: :+
│ ├── operator_loc: (3,6)-(3,8) = "+="
│ └── value:
│ @ IntegerNode (location: (3,9)-(3,10))
│ ├── flags: decimal
│ └── value: 1
└── @ CallOperatorWriteNode (location: (5,0)-(5,11))
├── flags: ∅
├── receiver:
│ @ CallNode (location: (5,0)-(5,3))
│ ├── flags: variable_call, ignore_visibility
│ ├── receiver: ∅
│ ├── call_operator_loc: ∅
│ ├── name: :foo
│ ├── message_loc: (5,0)-(5,3) = "foo"
│ ├── opening_loc: ∅
│ ├── arguments: ∅
│ ├── closing_loc: ∅
│ └── block: ∅
├── call_operator_loc: (5,3)-(5,5) = "::"
├── message_loc: (5,5)-(5,6) = "a"
├── read_name: :a
├── write_name: :a=
├── operator: :+
├── operator_loc: (5,7)-(5,9) = "+="
└── value:
@ IntegerNode (location: (5,10)-(5,11))
├── flags: decimal
└── value: 1
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