- scanner.l - It contains scanner of decaf compiler which will recognize tokens using regular expressions.
- parser.y - It contains parser of decaf compiler. It checks macro-syntax of language.
- ast.h - It contains declarations of all classes used in construction of AST.
- ast.cpp - It contains all funtions of classes except statements, methods related classes required for AST.
- methods.cpp - It contains all functions of classes for method classes.
- statements.cpp - It contains all functions of different type of statement classes.
- main.cpp - It initiates process of parsing of a program.
- codegen_visitor.h - It contains code generator visitor functions related to all classes except classes related expression and statements.
- expressiongen_visitor.h - It contains code generator visitor functions of expression classes.
- statementgen_visitor.h - It contains code generator visitor functions of statement classes.
- To compile the code, use 'make' command.
- To run decaf compiler on
input.dcffile, use command./parser input.dcf - redirect output of above file in an output file.
- Run output file using
lli. - Example:
make./parser input.dcf > outputlli output
flexscanner for scanning tokens.- Detects tokens using regular expressions.
bisonparser for generating AST- Implented using context free grammers
- Generates AST
- Implemented using
Visitor design pattern