puzzler7/ECE553-compiler

A Tiger compiler to MIPS assembly, written in SML

ECE553Project

Team Members

• Bowen Jiang (bj92)
• Andy Zhang (az107)
• Maverick Chung (mc608)

Links to Compiler Parts

• Lexer
• Parser
• Typechecker

Testing Instructions

Prerequisites

• node and npm
• mlton

Running tests

• Run npm install then npm test.
• The first test should spawn a mlton process to compile the SML into a standalone executable, which is used in the tests that follow.

Test details

• In general, snapshots (in test/*/__snapshots__) of the executables' output are created to reveal any changes in output between different builds of the code.

Lexer

• Tests perform a simple check that the lexer can run on a .tig file without crashing (i.e. process does not error and no output to stderr).
• Error messages in stdout are determined by pattern matching /:[0-9]+\.[0-9]+:/ (which is faulty but good enough for our purposes). positive tests should not have errors, while negative tests should.