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1.3 Analysis And Synthesis OF LP

1.3 Analysis And Synthesis OF LP. Language Processor = Analysis of Source Program + Synthesis of Target Program. Analysis And Synthesis OF LP. We refer to the collection of language processor components engaged in analyzing a source program as analysis phase of the LP.

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1.3 Analysis And Synthesis OF LP

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  1. 1.3 Analysis And Synthesis OF LP • Language Processor = Analysis of Source Program + Synthesis of Target Program.

  2. Analysis And Synthesis OF LP • We refer to the collection of language processor components engaged in analyzing a source program as analysis phase of the LP. • Components engaged in synthesizing a target program constitute the synthesis phase.

  3. 1. Analysis of Source Program • A specification of the source language forms the basis of source program analysis. The specification consist of three components.

  4. 1.1 Lexical Analyzer • Lexical rule which governs the formation of valid lexical units in the source language. • For example, it generates the token from syntax.

  5. 1.2 Syntax Analyzer • Syntax rule which govern the formation of valid statements in the source language. • For example, it find any syntax error like ; missing.

  6. 1.3 Semantic Analyzer • Semantic rules which associate meaning with valid statements of the language. • For example, the syntax “I saw child with telescope” has more then one meaning, but which one is valid.

  7. 2. Synthesis of Target Program • The synthesis phase is concerned with the construction of target language statements which have the same meaning as a source statement. • Typically this consist of two main activities: • Creation of data structure in the target program. • Generation of target code. • We refer to these activities as memory allocation and code generation activity.

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