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68 lines
2.0 KiB
68 lines
2.0 KiB
compUnit
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|-- decl
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| `-- constDecl
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| |-- CONST: const
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| |-- bType
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| | `-- INT: int
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| |-- constDef
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| | |-- Ident: a
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| | |-- ASSIGN: =
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| | `-- constInitVal
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| | `-- constExp
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| | `-- addExp
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| | `-- mulExp
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| | `-- unaryExp
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| | `-- primaryExp
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| | `-- number
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| | `-- IntConst: 10
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| `-- SEMI: ;
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|-- funcDef
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| |-- funcType
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| | `-- INT: int
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| |-- Ident: main
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| |-- LPAREN: (
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| |-- RPAREN: )
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| `-- block
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| |-- LBRACE: {
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| |-- blockItem
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| | `-- decl
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| | `-- varDecl
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| | |-- bType
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| | | `-- INT: int
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| | |-- varDef
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| | | `-- Ident: b
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| | `-- SEMI: ;
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| |-- blockItem
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| | `-- stmt
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| | |-- lVal
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| | | `-- Ident: b
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| | |-- ASSIGN: =
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| | |-- exp
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| | | `-- addExp
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| | | `-- mulExp
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| | | `-- unaryExp
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| | | `-- primaryExp
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| | | `-- number
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| | | `-- IntConst: 2
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| | `-- SEMI: ;
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| |-- blockItem
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| | `-- stmt
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| | |-- RETURN: return
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| | |-- exp
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| | | `-- addExp
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| | | |-- addExp
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| | | | `-- mulExp
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| | | | `-- unaryExp
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| | | | `-- primaryExp
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| | | | `-- lVal
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| | | | `-- Ident: b
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| | | |-- SUB: -
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| | | `-- mulExp
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| | | `-- unaryExp
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| | | `-- primaryExp
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| | | `-- lVal
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| | | `-- Ident: a
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| | `-- SEMI: ;
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| `-- RBRACE: }
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`-- EOF: <EOF>
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