SEMANTIC ANALYSIS
ATTRIBUTE GRAMMARS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Syntax directed translation scheme is desirable because
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it is based on the syntax
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its description is independent of any implementation
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it is easy to modify
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all of these
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Explanation:
Detailed explanation-1: -Syntax-directed translation refers to a method of compiler implementation where the source language translation is completely driven by the parser. A common method of syntax-directed translation is translating a string into a sequence of actions by attaching one such action to each rule of a grammar.
Detailed explanation-2: -A TRANSLATION SCHEME is a context-free grammar in which semantic rules are embedded within the right sides of the productions. So a translation scheme is like a syntax-directed definition, except that the order of evaluation of the semantic rules is explicitly shown.
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