Question: attribute grammar 9. Use the following attribute grammar to answer the questions below. 1. 2. Syntax rule: -> [2] + [3] Syntax rule: -> Semantic

attribute grammar

9. Use the following attribute grammar to answer the questions below. 1. 2. Syntax rule: -> [2] + [3] Syntax rule: -> Semantic rule: actual-type Semantic rule: .actual_type[31.actual_type Predicate: actual_typeexpr>. expected type 3. Syntax rule: - Semantic rule: .actual_type Predicate: . expected-type Semantic rule: .actual_type look-up( string) e int, B has type int, and c has type real. See Figure 3.8 in Sebesta for an example of 4. Syntax rule: A BIc (a) Draw a fully attributed parse tree for the sentence A - B+ C, assuming that A has typ such a tree. (b) According to the attribute grammar, is this sentence valid

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