What are the advantages of syntax directed translation?
Advantages of Syntax Directed Translation
By associating attributes with nodes in the parse tree, SDT can perform checks for type compatibility, scope, and other semantic constraints.
Increases Efficiency: SDT can generate intermediate code that is optimized for efficient execution..
What are the phases of compiler design?
The compiler has two modules namely the front end and the back end.
Front-end constitutes the Lexical analyzer, semantic analyzer, syntax analyzer, and intermediate code generator.
And the rest are assembled to form the back end.
It is also called a scanner..
Why learn compiler design?
Compiler design principles provide an in-depth view of translation and optimization process.
Compiler design covers basic translation mechanism and error detection & recovery.
It includes lexical, syntax, and semantic analysis as front end, and code generation and optimization as back-end..
- first and follow are important because they help the parser determine which production rule to apply to the given input.
First tells which terminal can start production whereas the follows tells the parser what terminal can follow a non-terminal. - Leading and Trailing are really important in Compiler Design.
These two play an important role in creating a parse tree.
They help in finding the first and last terminals and non-terminals.
Parser easily determines which production rules to apply by using these defining features prepared by their leadings/trailings. - Syntax Analysis:
Basically, in the second phase, it analyses the syntactical structure and inspects if the given input is correct or not in terms of programming syntax.
It accepts tokens as input and provides a parse tree as output.
It is also known as parsing in a compiler.
Note syntax errors.
