
	COMS W4115 Programming Languages and Translators Spring 2016

Lectures

Class meets Mondays and Wednesdays 2:40 - 3:55 PM 209 Havemeyer.

Staff

Name	Email	Office hours	Location
Prof. Stephen A. Edwards	sedwards@cs.columbia.edu	see my home page	462 CSB
Yu-Chun (Julie) Chien	yc2937@columbia.edu	Friday 3:00 - 5:00	TA Room (Mudd 1st floor)
Rachel Gordon	rcg2130@columbia.edu	Tuesday 10:30 AM - 12:30	TA Room
Daniel Echikson	dje2125@columbia.edu	Wednesday 12:15 - 2:15	TA Room
David Watkins	djw2146@columbia.edu	Monday 12:00 - 2:00	CS Lounge
Jacob Graff	jag2302@columbia.edu	Wednesday 4:00 - 6:00	CS Lounge

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	Session	Lecture	Reading	Due
Wed Jan 20	1	Intro. to Languages	Ch 1, 2
Mon Jan 25	2	Language Processors	Ch. 2
Wed Jan 27	3	Programming in OCaml
Mon Feb 1	4	Some Outstanding Projects
Wed Feb 3	5	"
Mon Feb 8	6	"
Wed Feb 10	7	Syntax and Parsing	Ch. 3, 4	Proposal
Mon Feb 15	8	"
Wed Feb 17	9	"		HW1
Mon Feb 22	10	"
Wed Feb 24	11	The MicroC Compiler	App. A
Mon Feb 29	12	"
Wed Mar 2	13	"		HW2
Mon Mar 7	14	Review for Midterm		LRM
Wed Mar 9		Midterm Exam
Mar 14-18		Spring Break
Mon Mar 21	15	Types and Static Semantics	Sec. 6.5
Wed Mar 23	16	Bob Martin: There Is No Magic
Mon Mar 28	17	Types and Static Semantics contd.
Wed Mar 30	18	Runtime Environments	Ch. 7
Mon Apr 4	19	"
Wed Apr 6	20	"		Hello World
Mon Apr 11	21	Code Generation
Wed Apr 13	22	The Lambda Calculus
Mon Apr 18	23	"
Wed Apr 20	24	Logic Programming		HW3
Mon Apr 25	25	Parallel Programming
Wed Apr 27	26	Review for Final
Mon May 2		Exam
May 11		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.
	Emmanuel Chailloux, Pascal Manoury, and Bruno Pagano, Developing Applications with Objective Caml. An online book translated from the French (O'Reilly).
	Objective CAML Tutorial
	OCaml source for the four-function calculator.
	OCaml source and test cases for the MicroC language, which generates LLVM IR.

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 automatially generated files, only the 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.
	An excellent final report: the Funk language by 4115 students Naser AlDuaij, Senyao Du, Noura Farra, Yuan Kang, and Andrea Lottarini.
	An excellent final report: the Sheets language by 4115 students Benjamin Barg, Gabriel Blanco, Amelia Brunner, and Ruchir Khaitan.

Language Reference Manuals

	Dennis M. Ritchie, C Reference Manual
	Kernighan & Ritchie, The C Programming Language
	The C Language Reference Manual (SGI)
	Stroustrup, The C++ Programming Language
	The Java Language Specification
	The C# Language Specification

Projects

Fly: Language for Distributed Systems (DE)