Deadline: 5.30pm, Thursday 9 October 2003.
Download and unpack the interpreter archive for this course, and make sure you can compile and run the interpreter.
cd interpreter javac hobbes/test/Main.java java hobbes.test.Main tests/Test*.hob java hobbes.test.Main tests/Fail*.hob
When you run the interpreter, you will get messages saying "Tests failed". Your homework is to get rid of these messages!
Note that the typechecker compiles, but it does not check most
programs! In particular, there are a number of tests called
Fail*.hob which should not typecheck,
but which currently do. This is what you should concentrate on!
This week, the problem is that the static semantics of
Hobbes is not complete. It is missing most of the cases
You should edit
hobbes/statics/TypeCheck.java to finish
You should add comments to the code, indicating which edits you made, for example:
// Edited by Wilma Flintstone: print ("hello"); // End of edits.
Once you have a working edited version of
create a zip archive containing that file, plus any other files
you edited, and submit it using Courses OnLine.