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64 lines
2.2 KiB

compUnit
|-- funcDef
| |-- funcType
| | `-- INT: int
| |-- Ident: main
| |-- LPAREN: (
| |-- RPAREN: )
| `-- block
| |-- LBRACE: {
| |-- blockItem
| | `-- decl
| | `-- varDecl
| | |-- bType
| | | `-- INT: int
| | |-- varDef
| | | |-- Ident: a
| | | |-- ASSIGN: =
| | | `-- initVal
| | | `-- exp
| | | `-- addExp
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- number
| | | `-- IntConst: 1
| | `-- SEMI: ;
| |-- blockItem
| | `-- decl
| | `-- varDecl
| | |-- bType
| | | `-- INT: int
| | |-- varDef
| | | |-- Ident: b
| | | |-- ASSIGN: =
| | | `-- initVal
| | | `-- exp
| | | `-- addExp
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- number
| | | `-- IntConst: 2
| | `-- SEMI: ;
| |-- blockItem
| | `-- stmt
| | |-- RETURN: return
| | |-- exp
| | | `-- addExp
| | | |-- addExp
| | | | `-- mulExp
| | | | `-- unaryExp
| | | | `-- primaryExp
| | | | `-- lVal
| | | | `-- Ident: a
| | | |-- ADD: +
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- lVal
| | | `-- Ident: b
| | `-- SEMI: ;
| `-- RBRACE: }
`-- EOF: <EOF>