You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

166 lines
7.1 KiB

compUnit
|-- funcDef
| |-- funcType
| | `-- INT: int
| |-- Ident: main
| |-- LPAREN: (
| |-- RPAREN: )
| `-- block
| |-- LBRACE: {
| |-- blockItem
| | `-- decl
| | `-- varDecl
| | |-- bType
| | | `-- INT: int
| | |-- varDef
| | | `-- Ident: i
| | `-- SEMI: ;
| |-- blockItem
| | `-- stmt
| | |-- lVal
| | | `-- Ident: i
| | |-- ASSIGN: =
| | |-- exp
| | | `-- addExp
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- number
| | | `-- IntConst: 0
| | `-- SEMI: ;
| |-- blockItem
| | `-- decl
| | `-- varDecl
| | |-- bType
| | | `-- INT: int
| | |-- varDef
| | | `-- Ident: sum
| | `-- SEMI: ;
| |-- blockItem
| | `-- stmt
| | |-- lVal
| | | `-- Ident: sum
| | |-- ASSIGN: =
| | |-- exp
| | | `-- addExp
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- number
| | | `-- IntConst: 0
| | `-- SEMI: ;
| |-- blockItem
| | `-- stmt
| | |-- WHILE: while
| | |-- LPAREN: (
| | |-- cond
| | | `-- lOrExp
| | | `-- lAndExp
| | | `-- eqExp
| | | `-- relExp
| | | |-- relExp
| | | | `-- addExp
| | | | `-- mulExp
| | | | `-- unaryExp
| | | | `-- primaryExp
| | | | `-- lVal
| | | | `-- Ident: i
| | | |-- LT: <
| | | `-- addExp
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- number
| | | `-- IntConst: 100
| | |-- RPAREN: )
| | `-- stmt
| | `-- block
| | |-- LBRACE: {
| | |-- blockItem
| | | `-- stmt
| | | |-- IF: if
| | | |-- LPAREN: (
| | | |-- cond
| | | | `-- lOrExp
| | | | `-- lAndExp
| | | | `-- eqExp
| | | | |-- eqExp
| | | | | `-- relExp
| | | | | `-- addExp
| | | | | `-- mulExp
| | | | | `-- unaryExp
| | | | | `-- primaryExp
| | | | | `-- lVal
| | | | | `-- Ident: i
| | | | |-- EQ: ==
| | | | `-- relExp
| | | | `-- addExp
| | | | `-- mulExp
| | | | `-- unaryExp
| | | | `-- primaryExp
| | | | `-- number
| | | | `-- IntConst: 50
| | | |-- RPAREN: )
| | | `-- stmt
| | | `-- block
| | | |-- LBRACE: {
| | | |-- blockItem
| | | | `-- stmt
| | | | |-- BREAK: break
| | | | `-- SEMI: ;
| | | `-- RBRACE: }
| | |-- blockItem
| | | `-- stmt
| | | |-- lVal
| | | | `-- Ident: sum
| | | |-- ASSIGN: =
| | | |-- exp
| | | | `-- addExp
| | | | |-- addExp
| | | | | `-- mulExp
| | | | | `-- unaryExp
| | | | | `-- primaryExp
| | | | | `-- lVal
| | | | | `-- Ident: sum
| | | | |-- ADD: +
| | | | `-- mulExp
| | | | `-- unaryExp
| | | | `-- primaryExp
| | | | `-- lVal
| | | | `-- Ident: i
| | | `-- SEMI: ;
| | |-- blockItem
| | | `-- stmt
| | | |-- lVal
| | | | `-- Ident: i
| | | |-- ASSIGN: =
| | | |-- exp
| | | | `-- addExp
| | | | |-- addExp
| | | | | `-- mulExp
| | | | | `-- unaryExp
| | | | | `-- primaryExp
| | | | | `-- lVal
| | | | | `-- Ident: i
| | | | |-- ADD: +
| | | | `-- mulExp
| | | | `-- unaryExp
| | | | `-- primaryExp
| | | | `-- number
| | | | `-- IntConst: 1
| | | `-- SEMI: ;
| | `-- RBRACE: }
| |-- blockItem
| | `-- stmt
| | |-- RETURN: return
| | |-- exp
| | | `-- addExp
| | | `-- mulExp
| | | `-- unaryExp
| | | `-- primaryExp
| | | `-- lVal
| | | `-- Ident: sum
| | `-- SEMI: ;
| `-- RBRACE: }
`-- EOF: <EOF>