John
fc3cbbf450
cl-token:
- Minimize data redundancy by consolidating TokenKind::Literal; TokenData::{String, Identifier}
- Rename Op to Punct
cl-ast:
- Remove ExprKind::{Member, Call} in favor of making them
'binary' operators
- Consolidate boxes (TODO: consolidate more boxes)
- Remove repetition vecs in favor of boxes (this may come with performance tradeoffs!)
cl-lexer:
- Reflect changes from cl-token
cl-interpret, cl-repl/src/examples:
- Reflect changes from cl-ast
cl-parser:
- Switch to Pratt parsing for expressions
- TODO: Code cleanup
- TODO: Use total ordering for Precedence instead of binding powers (that's what the binding powers are there for anyway)
- Switch functional parsers to take Punct instead of TokenKind
- It's not like we need a `for`-separated list
- Remove `binary` macro. No longer needed with precedence climbing.
- Repurpose `operator` macro to produce both the operator and the respective Precedence
- Remove several of the smaller parser functions, since they've been consolidated into the larger `exprkind`
Conlang: Expression-Oriented Programming Language
This project began out of a desire to merge Rust-style control flow expressions with Python's fun for-else/while-else syntax. I fully intend to devote my spare time to conlang for the forseeable future, and I livestream development on Twitch for one Friday each month.
Immediate Goals:
- Decide on a minimal set of keywords and operators to support
- Lex an entire Rust source file (minus generics, paths, and lifetimes)
- Write expression grammar
- Write AST for expression grammar
- Write parser for AST
- Create tests for parser (and AST)
- Parse
dummy.clinto a valid AST - Pretty printer, for debugging
- Create minimal statement grammar
- Variable definition statements
- Function definition statements
Short Goals:
forloops andwhileloops can be used on the trailing side of an assignment- Tree-walk interpreter for prototyping and debugging
- Data structures and sum-type enums
- Expression type-checker
- Trait/Interface system
- Three-address bytecode VM for standard library development
Long Goals:
- Minimize the number of kinds of statements
- Compile to LLVM IR
- Create a standard library for the language, with Rust-like abstractions.
- Port the compiler to Conlang