Match the LIST-I with LIST-II
| LIST-I (Input) |
LIST-II (Compiler Phase) |
| A. Syntax Tree |
I. Code Generator |
| B. Character Stream |
II. Syntax Analyzer |
| C. Intermediate Representation |
III. Semantic Analyzer |
| D. Token Stream |
IV. Lexical Analyzer |
Choose the correct answer from the options given below:
Solution
The correct answer is A-III, B-IV, C-I, D-II.
Key Points
- Matching LIST-I with LIST-II involves identifying the correct compiler phases corresponding to each input or output representation.
- Syntax Tree is associated with the Semantic Analyzer.
- Character Stream is handled by the Lexical Analyzer.
- Intermediate Representation is generated by the Code Generator.
- Token Stream is produced by the Syntax Analyzer.
Additional Information
- Compiler Phases and Their Functions:
- Lexical Analyzer: Converts a sequence of characters (character stream) into tokens (token stream).
- Syntax Analyzer: Checks for syntactical correctness and generates a syntax tree.
- Semantic Analyzer: Ensures semantic correctness and performs type checking using the syntax tree.
- Code Generator: Produces intermediate code representation or low-level code from the syntax tree.
- Importance of Intermediate Representation:
- It serves as an abstraction between the source code and the target machine code.
- Allows optimizations to be performed before the final code generation.
- Role of Tokens in Compilation:
- Tokens are the smallest units of a program, like keywords, operators, and identifiers.
- The token stream is essential for the syntax analyzer to build the syntax tree.
