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2.4 KiB

compUnit
|-- decl
| `-- varDecl
| |-- bType
| | `-- Int: int
| |-- varDef
| | |-- Ident: a
| | |-- Assign: =
| | `-- initVal
| | `-- exp
| | `-- addExp
| | `-- mulExp
| | `-- unaryExp
| | `-- primaryExp
| | `-- number
| | `-- IntConst: 3
| `-- Semi: ;
|-- decl
| `-- varDecl
| |-- bType
| | `-- Int: int
| |-- varDef
| | |-- Ident: b
| | |-- Assign: =
| | `-- initVal
| | `-- exp
| | `-- addExp
| | `-- mulExp
| | `-- unaryExp
| | `-- primaryExp
| | `-- number
| | `-- IntConst: 5
| `-- Semi: ;
|-- funcDef
| |-- funcType
| | `-- Int: int
| |-- Ident: main
| |-- L_PAREN: (
| |-- R_PAREN: )
| `-- block
| |-- L_BRACE: {
| |-- blockItem
| | `-- decl
| | `-- varDecl
| | |-- bType
| | | `-- Int: int
| | |-- varDef
| | | |-- Ident: a
| | | |-- Assign: =
| | | `-- initVal
| | | `-- exp
| | | `-- addExp
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- number
| | | `-- IntConst: 5
| | `-- Semi: ;
| |-- blockItem
| | `-- stmt
| | |-- Return: return
| | |-- exp
| | | `-- addExp
| | | |-- addExp
| | | | `-- mulExp
| | | | `-- unaryExp
| | | | `-- primaryExp
| | | | `-- lVal
| | | | `-- Ident: a
| | | |-- AddOp: +
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- lVal
| | | `-- Ident: b
| | `-- Semi: ;
| `-- R_BRACE: }
`-- EOF: <EOF>