bweir / lame

Lame language compiler

lame compiler suite

I'm making a Spin compiler. Why?

• Spin is an interesting language for its limitations

• LameStation has years of content built around a subset of Spin

• The ecosystem is fragmented and not fully specified

• A documented lexer/parser would enable many kinds of analyses

• This gives me an excuse to learn Go

Notes:

• https://blog.gopheracademy.com/advent-2014/parsers-lexers/

• https://github.com/benbjohnson/sql-parser/blob/master/scanner.go

Usage

lame COMMAND [OPTIONS]

Goals

• To compile Spin objects:

  lame build
  

• To load Spin objects over serial:

  lame load
  

• To enable a live build/load/debug cycle over serial

  lame dev
  

• To reformat Spin code accurately:

  lame fmt
  

• To generate documentation from any Spin object:

  lame doc
  

• To push and pull Spin objects to/from a remote repo:

  # upload an object to the repo
  lame up
  
  # pull an object
  lame down pst=1.0.0

• To support multiple code generator backends (Propeller VM?)

Finer Goals

• To write a (semi-)formal specification for the Spin language

• To perform code generation for the Propeller 1

• To support an alternative VM target for desktop / browser use

• To support direct addressing via the @ symbol

• To add a path system to Spin:

  OBJ
      obj : "path.to.module"
  

• To add automatic constant folding

• To reduce the number of operators / keywords

Roadmap

• Identity - Translate the input to the AST and re-emit to the output

• Reverse engineer Propeller binary format