
	COMS W4115 Programming Languages and Translators Fall 2011

Lectures

Class meets 4:10 - 5:25 PM Mondays and Wednesdays in 501 Northwest Corner Building.

Staff

Name	Email	Office Hours
Prof. Stephen A. Edwards	sedwards@cs.columbia.edu	M 3-4, Th 2-3, 462 CSB
Xiaowei Zhang	xz2242@columbia.edu	M 12-1, W 12-1, TA Room, 1st floor Mudd
Feng Zhou	fz2168@columbia.edu	Wednesday 2-4, TA Room, 1st floor Mudd
Yi Zhang	yz2360@columbia.edu	Friday 2-4, TA Room, 1st floor Mudd

Overview

The goal of PLT is to teach you both about the structure of computer programming languages and the basics of implementing compilers for such languages.

The course will focus mostly on traditional imperative and object-oriented languages, but will also cover functional and logic programming, concurrency issues, and some aspects of scripting languages. Homework and tests will cover language issues. You will design and implement a language of your own design in a semester-long group project.

While few of you will ever implement a full commercial compiler professionally, the concepts, techniques, and tools you will learn have broad application.

Prerequisites

COMS W3157 Advanced Programming: You will be dividing into teams to build a compiler, so you need to have some idea how to keep this under control. Quick test: you need to know about Makefiles and source code control systems.

COMS W3261 Computability and Models of Computation: You will need an understanding of formal languages and grammar to build the parser and lexical analyzer. Quick test: you must know about regular expressions, context-free grammars, and NFAs.

Schedule

Date	Lecture	Reading	Due
September 7	Intro. to Languages	Ch. 1, 2
September 12	The C Language Reference Manual
September 14	Introduction to O'Caml
September 19	"
September 21	"
September 26	Language Processors	Ch. 2
September 28	Syntax and Parsing	Ch 3, 4	Proposal
October 3	"
October 5	"
October 10	Getting it right
October 12	—
October 17			HW1
October 19	Ocamlyacc and ASTs	Ch. 4, 5
October 24	Names, Scope, and Bindings	Ch. 6
October 26	The MicroC Compiler	App. A	HW2
October 31	Midterm review		LRM
November 2	Midterm
November 7	Election Day Holiday
November 9	Types	Ch. 6
November 14	"
November 16	Control-flow	Ch. 6
November 21	"
November 23	Code Generation	Ch. 6, 7, 8
November 24-25	Thanksgiving Holiday
November 28	Logic Programming
November 30	The Lambda Calculus		HW3
December 5	Parallel Programming in OpenMP and Java
December 7	Review for final
December 12	Final Exam
December 22	Project reports due

Required Text

Alfred V. Aho, Monica Lam, Ravi Sethi, and Jeffrey D. Ullman.
Compilers: Principles, Techniques, and Tools.
Addison-Wesley, 2006. Second Edition.

The first edition was long the standard text on compilers; the second edition of the ``dragon book'' has now been updated and continues to be one of the more readable books on the topic. Columbia's own Prof. Al Aho is one of the authors.

Related Texts

Michael L. Scott. Programming Language Pragmatics Morgan Kaufmann, 2006. Second Edition. A broad-minded book about languages in general, but has less on practical details of compiler construction.
Andrew W. Appel. Modern Compiler Implementation in ML. Cambridge University Press, 1998. The opposite of Scott: focuses on compiler construction, not language design issues. It uses the functional language ML, which is closely related to O'Caml, but just different enough to be annoying.
Lawrence C. Paulson ML for the Working Programmer. Cambridge University Press, 1996. Second edition. A book about functional programming. It's written for the ML language, not O'Caml, but the two are closely related.
Steven S. Muchnick Advanced Compiler Design and Implementation. Morgan Kaufmann, 1997. A very extensive book on many aspects of compiler design. Starts about halfway through Appel and goes much farther. Recommended for serious compiler hackers only.

Objective Caml Resources

	The Caml Language Homepage. Compiler downloads and documentation. Start here.
	The Objective Caml System. Documentation and User's Manual for the whole system, including documentation for ocamllex, ocamlyacc, ocamldep, ocamldebug, and all the standard libraries.
	Jason Hickey, Introduction to Objective Caml. One of my favorite books on O'Caml.
	Emmanuel Chailloux, Pascal Manoury, and Bruno Pagano, Developing Applications with Objective Caml. An online book translated from the French (O'Reilly).
	Objective CAML Tutorial
	O'Caml source for the four-function calculator.
	O'Caml source and test cases for the microc language.

The Project

The focus of 4115 is the design and implementation of a little language. You will divide into teams and design the goals, syntax, and semantics of your language, and implement a compiler for your language.

Exception: CVN students will do the project individually.

Final Report Outline

This is a critical part of the project and will be a substantial fraction of the grade.

Include the following sections:

Introduction
- Include your language white paper.
Language Tutorial
- A short explanation telling a novice how to use your language.
Language Manual
- Include your language reference manual.
Project Plan
- Identify process used for planning, specification, development and testing
- Include a one-page programming style guide used by the team
- Show your project timeline
- Identify roles and responsibilities of each team member
- Describe the software development environment used (tools and languages)
- Include your project log
Architectural Design
- Give block diagram showing the major components of your translator
- Describe the interfaces between the components
- State who implemented each component
Test Plan
- Show two or three representative source language programs along with the target language program generated for each
- Show the test suites used to test your translator
- Explain why and how these test cases were chosen
- What kind of automation was used in testing
- State who did what
Lessons Learned
- Each team member should explain his or her most important learning
- Include any advice the team has for future teams
Appendix
- Attach a complete code listing of your translator with each module signed by its author
- Do not include any ANTLR-generated files, only the .g sources.

Project Resources

	A two-page introduction to the CVS version control system. I strongly suggest you keep your project under some version control system.
	A sample final report by Chris Conway, Cheng-Hong Li, and Megan Pengelly. It includes the white paper, tutorial, language reference manual, project plan, architectural design, and testing plan. It does not include the lessons learned and code listings sections, although it should.

White Papers

	The Java white paper from Sun Microsystems
	C# Introduction and Overview

Language Reference Manuals

	Dennis M. Ritchie, C Reference Manual
	Kernighan & Ritchie, The C Programming Language
	The C Language Reference Manual (DEC)
	The C Language Reference Manual (SGI)
	The C Language Reference Manual (Microsoft)
	Stroustrup, The C++ Programming Language
	The Java Language Specification
	The C# Language Specification
	Aho, Kernighan, and Weinberger, The AWK Programming Language

This Term's Projects

LSystem: L-System Fractal Generator (XZ)

Proposal

LRM