@ ProgramNode (location: (1,0)-(1,31))
├── flags: ∅
├── locals: [:match]
└── statements:
    @ StatementsNode (location: (1,0)-(1,31))
    ├── flags: ∅
    └── body: (length: 2)
        ├── @ MatchWriteNode (location: (1,0)-(1,24))
        │   ├── flags: newline
        │   ├── call:
        │   │   @ CallNode (location: (1,0)-(1,24))
        │   │   ├── flags: ∅
        │   │   ├── receiver:
        │   │   │   @ RegularExpressionNode (location: (1,0)-(1,15))
        │   │   │   ├── flags: static_literal, forced_us_ascii_encoding
        │   │   │   ├── opening_loc: (1,0)-(1,1) = "/"
        │   │   │   ├── content_loc: (1,1)-(1,14) = "(?<match>bar)"
        │   │   │   ├── closing_loc: (1,14)-(1,15) = "/"
        │   │   │   └── unescaped: "(?<match>bar)"
        │   │   ├── call_operator_loc: ∅
        │   │   ├── name: :=~
        │   │   ├── message_loc: (1,16)-(1,18) = "=~"
        │   │   ├── opening_loc: ∅
        │   │   ├── arguments:
        │   │   │   @ ArgumentsNode (location: (1,19)-(1,24))
        │   │   │   ├── flags: ∅
        │   │   │   └── arguments: (length: 1)
        │   │   │       └── @ StringNode (location: (1,19)-(1,24))
        │   │   │           ├── flags: ∅
        │   │   │           ├── opening_loc: (1,19)-(1,20) = "'"
        │   │   │           ├── content_loc: (1,20)-(1,23) = "bar"
        │   │   │           ├── closing_loc: (1,23)-(1,24) = "'"
        │   │   │           └── unescaped: "bar"
        │   │   ├── closing_loc: ∅
        │   │   └── block: ∅
        │   └── targets: (length: 1)
        │       └── @ LocalVariableTargetNode (location: (1,4)-(1,9))
        │           ├── flags: ∅
        │           ├── name: :match
        │           └── depth: 0
        └── @ LocalVariableReadNode (location: (1,26)-(1,31))
            ├── flags: newline
            ├── name: :match
            └── depth: 0
