should be implemented as a Java class
C_ in the empty package and every Cool method 
as
c_ to avoid name clashes.
For this assignment, you will rewrite the code generator completely to generate Java Bytecode instead of MIPS assembly. You will write the program in Java using the bytecode engineering library BCEL. I have provided the inputs to your compiler: files containing the output of the semantic analyzer. You will also need to write the basic classes in Java directly, unless you wish to generate the native methods directly from your code generator, which is neater but much more tedious.
Documentation on Java, Java Bytecode and the Bytecode Engineering Library is available from the course web page
Every Cool class should be implemented as a Java class
C_ in the empty package and every Cool method as
c_ to avoid name clashes.
I have provided routines to read in the Cool AST into a set of
recursive Java AST classes. You will want to add your code generation
routines to each class, as you did in PA7 in CompSci 654.
Each class also provides a function for dumping the AST.
Finally, I provide an example of using the BCEL to create a class
C_Object with a single method c_abort in it.
You will need to do the rest.
The source is provided in /afs/cs.uwm.edu/users/classes/cs754/src/homework7/
as a set of Java files plus some Cool files and their attributed
trees. The Cool source is provided only for reference: your code
generator will start with the attributed ASTs.
To see what exists currently:
grid.cs: setenv CLASSPATH .:/afs/cs.uwm.edu/users/classes/cs754/lib/bcel-5.1.jar grid.cs: mkdir hw7 grid.cs: cd hw7 grid.cs: cp /afs/cs.uwm.edu/users/classes/cs754/src/homework7/* . grid.cs: javac *.java grid.cs: javap -c C_Object grid.cs: rm C_Object.class grid.cs: java Example grid.cs: javap -c C_Object grid.cs: java ExampleTest grid.cs: java ASTNode hello_world.atree