meego

A miniature bootstrapped Golang to 'Vanilla' C++ transpiler.

Lexer/Parser generated using gocc, following the stand-alone DFA which recognizes grammer for a regular language in BNF (Backus Naur Form).

• Install meego and gocc

$ go get github.com/aniketp/meego
$ go get github.com/goccmack/gocc	(make deps)

• Generate Lexer and Parser

$ cd src; gocc lang.bnf			(make run)

• Run tests

$ cd test; go test -v			(make test)

• Compile a simple program

$ go run main.go input/example.meego
5
Requiescat in pace, Ezio!

This project is my attempt to learn about Compiler Design, and was done in a short duration following this medium article, including my own variations on the top. As a result, the grammer is a tiny subset of Golang (with a mix of Typescript syntax).

To avoid the complexity of Intermediate Language generation and optimization, I switched the Target Language to a simple subset of C++11.

References

• shivansh/gogo (lang.bnf)
• Lebonesco/go-compiler