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Input taken by semantic analyzer and output produces by semantic analyzer are
- a)Token stream, syntax tree
- b)Character stream, token stream
- c)Syntax tree, intermediate representation
- d)Syntax tree, syntax tree
Correct answer is option 'D'. Can you explain this answer?
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Input taken by semantic analyzer and output produces by semantic anal...
| Phases of Compiler | Input | Output |
| Lexical Analyzer | Character stream | Token stream |
| Syntax Analyzer | Token stream | Syntax tree |
| Semantic Analyzer | Syntax tree | Syntax tree |
| Intermediate Code Generator | Syntax tree | Intermediate representation |
| Machine-Independent Code Optimizer | Intermediate representation | Intermediate representation |
| Code Generator | Intermediate representation | Target-machine code |
| Machine-Dependent Code Optimizer | Target-machine code | Target-machine code |
Most Upvoted Answer
Input taken by semantic analyzer and output produces by semantic anal...
Semantic Analyzer is a crucial phase in the compilation process, where the input is analyzed for its meaning and correctness. It performs various tasks such as type checking, scope resolution, and generating intermediate code. The semantic analyzer takes input in the form of a syntax tree and produces output in the form of a syntax tree.
The correct answer to the given question is option 'D' - Syntax tree, syntax tree.
Explanation:
- Syntax Tree: A syntax tree represents the syntactic structure of the input program. It is a hierarchical structure consisting of nodes that represent various elements of the program, such as expressions, statements, and declarations. The syntax tree is generated by the parser based on the grammar rules of the programming language.
- Semantic Analysis: Once the syntax tree is constructed, the semantic analyzer performs a deeper analysis of the program's structure to ensure its correctness and meaning. It checks for semantic errors, enforces type rules, resolves variable scopes, and generates intermediate representation for further processing.
- Input to Semantic Analyzer: The input to the semantic analyzer is the syntax tree generated by the parser. The syntax tree captures the structure and organization of the program, but it does not contain information about the program's meaning or correctness. Therefore, the semantic analyzer takes the syntax tree as input to perform semantic analysis.
- Output from Semantic Analyzer: The output produced by the semantic analyzer is an enhanced syntax tree that includes additional semantic information. This enhanced syntax tree represents not only the syntactic structure but also the meaning and correctness of the program. It contains type annotations, scope information, and other semantic details.
- Syntax Tree as Output: The output of the semantic analyzer is still represented in the form of a syntax tree. However, this syntax tree is different from the input syntax tree as it includes additional semantic information. It serves as an intermediate representation for further compilation stages such as code optimization and code generation.
Hence, the correct answer is option 'D' - Syntax tree, syntax tree.
The correct answer to the given question is option 'D' - Syntax tree, syntax tree.
Explanation:
- Syntax Tree: A syntax tree represents the syntactic structure of the input program. It is a hierarchical structure consisting of nodes that represent various elements of the program, such as expressions, statements, and declarations. The syntax tree is generated by the parser based on the grammar rules of the programming language.
- Semantic Analysis: Once the syntax tree is constructed, the semantic analyzer performs a deeper analysis of the program's structure to ensure its correctness and meaning. It checks for semantic errors, enforces type rules, resolves variable scopes, and generates intermediate representation for further processing.
- Input to Semantic Analyzer: The input to the semantic analyzer is the syntax tree generated by the parser. The syntax tree captures the structure and organization of the program, but it does not contain information about the program's meaning or correctness. Therefore, the semantic analyzer takes the syntax tree as input to perform semantic analysis.
- Output from Semantic Analyzer: The output produced by the semantic analyzer is an enhanced syntax tree that includes additional semantic information. This enhanced syntax tree represents not only the syntactic structure but also the meaning and correctness of the program. It contains type annotations, scope information, and other semantic details.
- Syntax Tree as Output: The output of the semantic analyzer is still represented in the form of a syntax tree. However, this syntax tree is different from the input syntax tree as it includes additional semantic information. It serves as an intermediate representation for further compilation stages such as code optimization and code generation.
Hence, the correct answer is option 'D' - Syntax tree, syntax tree.
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Input taken by semantic analyzer and output produces by semantic analyzer area)Token stream, syntax treeb)Character stream, token streamc)Syntax tree, intermediate representationd)Syntax tree, syntax treeCorrect answer is option 'D'. Can you explain this answer?
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