7[1].2理论要点

7[1].2理论要点

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Unformatted text preview: 7.2 节节节节 1 节 节节节节 ( 节节节节节节节 ) 节 Syntax-Directed Definition 节节 节节节节节节节节 A →α 节节节节节节节节节节节节节节节 semantic rules 节节节节节节节节节节 b:=f(c 1 , c 2 , …, c k ) 节节节 f 节节节节节节 b,c 1 , c 2 , …, c k 节节节节节节节节节节节节节节 attributes 节节 b 节节节节节节节 1 节节 A 节节节节节节 synthesized attribute 节节节 2 节节 α 节节节节节 节节节节节节 inherited attribute 节节 节节 f 节节节节节节节节节节节节 节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节 A 节节节节节节节节节节节节节节节节节节节 := 节节 节节节节节节 2 节 节节节节节节“节节节节”节节节节节节节节节节节节“节节节节”节节节节节 3 节 节节 节节节节 节节节节节节节节节节节节节 Syntax-Directed Translation 节节 节节节节节节节节 1 节节节节节节节节节节节节节节节节节节节节节节节 2 节节节节节节节节节节节节节节节节 On-the-fly 节节节节节节节节节节节节 节节节节节节节节节 1 节节节节节节节节节节节节节 节 节节 2 节节节节节节节节 3 节节节节节节节节节节节节节节节节节节节节节节节节节节 topological sort 节节节节节节节节节节节 节节节节节节节节节节节节节节节节节节节节节节节节 172 节节 节节节节节节节节节节节节节节节节节节节节节节节节节节 S- 节节节节节节节节节节节 S- 节节节节节节 L- 节节节节节节节节节节节 L- 节节节节节节节节节 4 节 S- 节节节节节节节节节节节节节 L- 节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节节 174 节节 S- 节节节节节 L- 节节节节节节节节节节...
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7[1].2理论要点

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