Haskell WebAssembly Toolkit

Goals

• Provide a WebAssembly code generation tool for Haskell
• Create an infrastructure for Cmm to WebAssembly code generator
• Have Fun :)

Status

• [x] Lexer: supports nested block comments and all lexemes from the WebAssembly Spec
• [x] Parser: parses all examples from WebAssembly Core TestsSuit (including folded instructions parsing)
• [x] Renaming Phase: substitute identifiers with correct indexes, expand all implicit type declarations)
• [x] Binary format parser/serializer
• [x] Validation Phase: execute a verification procedure from the Spec
• [x] Execution Phase: implement a simple interpreter
• [x] Support extended Core Test Suit assertion grammar
• [X] Compile Core Tests to Tasty test cases and pass all tests

Todo

• [ ] Improve error messages for text representation parsing
• [ ] Text Representation pretty-printer
• [ ] Command line tool for calling interpreter/compiler/validator
• [ ] Codegen interface for type enforced generating valid WASM code
• [ ] Support for building if, loop, block

Development

Clone sources to directory and use stack for running tests:

stack build && stack test