Computers and Technology, 14.02.2020 00:09, TaraDean
Write an attribute grammar whose BNF basis is that of Example 3.6 in Section 3.4.5 but whose language rules are as follows: Data types cannot be mixed in expressions, but assignment statements need not have the same types on both sides of the assignment operator.
1) Syntax rule: β =
2) Syntax rule: β [2] + [3]
Predicate: [2].actual_type == [3].actual_type
3) Syntax rule: β
4) Syntax rule: β A | B | C
Semantic rule: .actual_type β lookup(.string)
Answers: 2
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Write an attribute grammar whose BNF basis is that of Example 3.6 in Section 3.4.5 but whose languag...
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