Acorn Interpreter (and other infrastructure)

Acorn

• common: Common types and utilities across multiple unrelated dependencies
• lexer: Standalone lexer for Acorn
• syntax: Standalone syntax tree implementation with language specific syntax elements
• • Depends lexer
• ast: Abstract syntax tree on top of the syntax tree built by the parser
  • Depends syntax
• hir: High level intermediate representation, no longer maintains a full source code representation.
  • Depends ast
• vm: Virtual machine which executes HIR directly.
  • Depends hir
• interpreter: (todo) Tree walking interpreter based on HIR
  • Depends hir
• cli: (todo) General purpose command line interface.
  • Depends vm for launching vm
  • Probably depends on parse, ast, hir, etc for pretty error rendering? Or maybe common has an interface for error rendering and this implements that.

Tooling

• intellij: Intellij plugin for Acorn
• lsp: (maybe) LSP implementation for Acorn
• vscode: (maybe) VSCode plugin for Acorn

Bootstrapping

• examples: will contain example Acorn programs
• Eventually there will be some Acorn sources for standard library and the bootstrapped compiler.

Scratch spot:

• Currently have a syntax problem. A void return type is an empty tuple, but typing fn() () is extremely weird. Need to either introduce a : after param list, or figure somethign else out.