Understanding the Role of Symbol Table in Compiler Design

📚 The symbol table is used by various phases of the compiler to store information gathered from the analysis phase and used in the synthesis phase.

🔍 The symbol table manager gathers information from the analysis phase and stores it in the symbol table for use by the synthesis phase.

💻 The symbol table allows for various operations to be performed, such as adding, retrieving, and modifying entries.

📚 The symbol table is maintained by compilers to store information about entities such as variables and functions.

🔍 During lexical analysis, the symbol table is used to create entries for identifiers.

🔧 The symbol table is updated and used by different phases of the compiler in order to generate target code.

📚 The symbol table is used during intermediate code generation, code optimization, and target code generation phases.

💡 The symbol table stores information about identifiers, such as their names, data types, and sizes.

🖥️ The symbol table is essential for generating target code using the address information of identifiers.

📐 The 'dimension' attribute holds the dimensions of arrays.

🔤 The 'line of declaration' attribute stores the line number where the identifier is declared.

🔢 The 'line of usage' attribute stores the line numbers where the identifier is used.

🔑 The symbol table is used to keep track of variables and their attributes in a program.

📚 Variables can have different attributes such as name, type, and size.

🔢 The size of an array can be determined by counting the number of characters it contains.

📚 The symbol table is a data structure used in programming languages to store information about variables and identifiers.

💡 The size of the symbol table is dynamically allocated during compile time to prevent wasted space.

🔄 In non-block structured languages like Fortran, variables have a global scope and can be inserted or accessed in the symbol table.

📚 In C, variables can be declared multiple times within different blocks using curly braces for block structure.

🔍 The symbol table allows for insert and lookup operations to handle variable declarations.

🔄 The set and reset operations define and redefine the scopes of variables declared multiple times.