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Author SHA1 Message Date
John
04320de9a8 parser: Make delim, sep, and rep const 2024-02-27 23:32:32 -06:00
John
325498ac8b ast: Add metadata attributes on Items 
TODO: decide what other places attributes belong
 2024-02-27 23:31:49 -06:00
John
9806e95247 ast_impl: Forgot to impl From<Expr> for StmtKind (whoops!) 2024-02-27 22:49:14 -06:00
John
5484d96e7d ast: Add the "Self" type in preparation for cl-typeck 2024-02-27 22:48:24 -06:00
John
e3f08ac013 parser: Overhaul the semi-functional Parser::{delimited, separated, repeated} methods into real higher-order functions 2024-02-27 22:46:36 -06:00
John
978f5e40c1 conlang: Introduce type-alias/typedef syntax 
`type T;` | `type T = U;`
 2024-02-27 20:49:02 -06:00
John
0c1b3bfe39 ast: Do not promise PartialOrd/Ord (breaking change) 2024-02-27 20:41:15 -06:00
John
87c8d43d11 grammar.ebnf: Fix ModuleKind grammar 2024-02-26 16:19:21 -06:00
John
c36eec216a parser: Allow StmtKind to parse itself (whoops!) 2024-02-26 16:03:18 -06:00
John
66deb41301 grammar.ebnf: Sync changes with AST 2024-02-26 16:02:36 -06:00
John
9bde97942c ast: Enum variants can have no data, or have an associated integer. 2024-02-26 15:59:15 -06:00
John
bb3eecd190 interpreter: Allow statements to choose their own return value (reduces code duplication) 2024-02-26 15:53:45 -06:00
John
ffa313eea8 ast: Allow type specifier in let statement 2024-02-26 15:49:55 -06:00
John
490d320633 parser: allow end of input in binary and indexing operations. 
This improves robustness and correctness of implementation.
 2024-02-26 15:37:07 -06:00
John
13995259aa parser: use different wording when the expected value was an operator vs an expression 2024-02-26 15:35:07 -06:00
John
ae76df9c83 interpreter: Fix bug where a break instruction would instead signal a return from subroutine 2024-02-26 15:33:47 -06:00
John
1bfeeb1755 interpreter: shrink integers to pointer-size in temp type implementation, for speed 2024-02-26 15:32:49 -06:00
John
59b73f314a ast: Remove unary hash operator to reserve the symbol for use in attribute parsing 2024-02-26 15:30:50 -06:00
John
cdf283064e ast: Improve ExprKind descriptions 2024-02-26 15:25:49 -06:00
John
2095bfec80 Lexer tests: import formatting 2024-02-26 15:21:14 -06:00
John
3f8c2b6267 ast: remove done TODOs 2024-02-26 15:20:33 -06:00
John
77db95791a cl-frontend: Improve the line-editing capabilities in REPL mode. 
- Note: This adds a dependency on Crossterm, to set the terminal into raw mode. This could be eliminated by linking the libraries Crossterm uses directly... Or I could embrace Crossterm, and use it for all escape sequences in the terminal, instead of assuming DEC VT500 compatibility.
 2024-02-26 15:15:34 -06:00
John
5e4e70a72e fibonacci.cl: Move the input number out of the string 2024-02-26 15:11:28 -06:00
John
b8d70d3393 Cleanup: Break Loc out into a common module, rename WhileParsing => Parsing 2024-01-23 01:51:00 -06:00
John
c4a32895df conlang 0.3.0: Total grammar overhaul 
- Rewrote the grammar
- Rewrote the AST
- Rewrote the Parser
- Removed pretty printer (now handled by ast::ast_impl::Pretty, a Writer wrapper)
- Added items, and new keywords to go with them
  - Syntax is ~maybe temporary, based on Rust syntax
 2024-01-21 05:32:18 -06:00
John
5e2f365f45 conlang: deprecate the AST 2024-01-21 01:34:40 -06:00
John
6bb2f3774f interpreter: Add regression tests for operators and precedence 2024-01-09 23:52:48 -06:00
John
d9d8c70556 interpreter: revert storing environments in functions 
This change broke recursion entirely
 2024-01-09 22:42:15 -06:00
John
99ade72756 interpreter: fix variable resolution and assignment 2024-01-09 22:39:58 -06:00
John
56f0550829 resolver: remove unused, deprecated stack functions 2024-01-09 21:04:28 -06:00
John
15d7565703 token: Add new keywords in preparation for grammar update 2024-01-06 14:32:56 -06:00
John
77f7623041 resolver: Improve block scoping with a scope guard 2024-01-06 14:32:06 -06:00
John
53f9ec2356 interpreter: use an explicit stack, rather than a cons list 
Also gets rid of some dead code
 2024-01-05 22:47:16 -06:00
John
54bae6a9c5 cl-frontend: update doc comment for new behavior 2024-01-05 21:49:05 -06:00
John
8d03b8a8eb ast: update todo 2024-01-05 21:47:36 -06:00
John
d387e4dfd7 interpreter: rewrite interpreter 
- Remove interpreter struct
- Replace with `Interpret` trait
- This separates concerns dramatically! Yay!
- Implement block scoping via `Frame` abstraction
  - TODO: is this the right abstraction?
  - TODO: Modules??
  - TODO: What environment should be passed into a function call?
ast:
- rename Name.name to Name.symbol (name.name.name.name.name.name.name is very readable, yes yes)
 2024-01-05 17:48:19 -06:00
John
9eafae0757 resolver: Whoops! Commit early WIP resolver. 2024-01-05 17:44:09 -06:00
John
79fda16788 cl 0.0.2: MAJOR ERGONOMIC BOOST 
Broke frontend into its own library, "cl-frontend"
- Frontend is pretty :D
- Included sample fibonacci implementation

Deprecated conlang::ast::Visitor in favor of bespoke traits
- Rust traits are super cool.
- The Interpreter is currently undergoing a major rewrite

Added preliminary type-path support to the parser
- Currently incomplete: type paths must end in Never..?

Pretty printer is now even prettier
- conlang::ast now exports all relevant AST nodes, since there are no namespace collisions any more
 2024-01-04 02:18:09 -06:00
John
9b7cf9c017 lexer: Add :: and #! tokens 2023-10-30 19:17:03 -05:00
John
c3e02d21ad sample-code: Add some sample Conlang programs :D 2023-10-30 00:23:43 -05:00
John
c1c834701a parser: Mockup type-expression syntax 
- Allow `name: Type` notation for parameters
- Allow `fn x() -> RetVal` notation for return values
- TODO: Create syntax for type-expressions/paths
 2023-10-30 00:07:27 -05:00
John
374017d5e3 examples/interpret: Call main if loading from file 2023-10-29 23:48:38 -05:00
John
ee5dabb4f3 Conlang: Implement functions 1.0 (Resolves #12) 
- [x] Call syntax
- [x] Function declaration syntax
TODO:
- [ ] Any form of type checking
- [ ] Static variable resolution
- [ ] Closures, etc.
 2023-10-29 23:47:00 -05:00
John
f3306e7ba4 examples/format: Rename from parse_input 2023-10-29 21:10:09 -05:00
John
9a6eb6b0f1 examples/interpret: Improve the repl's UX somewhat 2023-10-29 01:14:36 -05:00
John
8fe89e6297 conlang: Variable binding and cleanup 
ast: Separate concerns, and remove Walk
interpreter: implement variable binding
 2023-10-29 01:13:48 -05:00
John
35d214c9f6 ast: Remove vestigial "ignore" in Expr 2023-10-27 00:19:19 -05:00
John
ac540ebd22 parser: parse let statements 
- TODO: Type expressions
token: Add `mut` keyword
 2023-10-27 00:18:02 -05:00
John
f3aad36f32 examples/interpret: Multi-line input support 2023-10-26 22:33:31 -05:00
John
b906775006 dummy.cl: Remove "shebang comment" (lmao) 2023-10-26 22:14:12 -05:00