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27 commits

Author SHA1 Message Date
Erin 25a3c14145 Changed to correct naming conventions 2021-07-29 23:26:43 +02:00
Erin b451503a27 Obeyed clippy 2021-07-29 23:22:38 +02:00
Alex Bethel 0bca9ff79c Get carts sort of working 
still a bunch of `todo`s and needs a lot of work, but I'm hungry and
going on lunch break :)
 2021-07-29 13:29:23 -05:00
Alex Bethel 501d182fb4 Use coercion in BFF argument passing 2021-07-22 22:08:04 -05:00
Alex Bethel d3242484fc Make integer coercion infallible 2021-07-16 18:56:45 -05:00
Alex Bethel a225105f09 Prettier error handling 2021-07-13 13:54:27 -05:00
Alex Bethel 4011997e60 Clippy conformance 2021-06-16 10:35:06 -05:00
Alex Bethel 66d4f4f82d Implement most of pass-by-reference 
We need some parser changes to make it work fully: function arguments
are now identifiers rather than expressions.
 2021-06-15 09:51:00 -05:00
Alex Bethel 75938f27c0 Implement functio declaration & calling 2021-06-15 09:51:00 -05:00
Alex Bethel 976518a251 Reimplement BF function declaration semantics 2021-06-12 09:26:21 -05:00
Alex Bethel ce20611c07 Fix all 0..0 span placeholders in interpret.rs 2021-06-07 19:57:44 -05:00
Alex Bethel 426aee6a2b Repair interpreter after parser changes 2021-06-07 16:20:20 -05:00
Erin 902d8b914c Unified span terminology 
- Add more derivations, because it's required by another parts of project
 2021-06-07 22:21:21 +02:00
Alex Bethel ce02aebd91 Use impl Value rather than trait BfWriter 
It probably makes more sense to be writing values with
`Value::bf_write` than to go for the complexity of using a trait to
allow `Writer::write_value` (which also looks ambiguous because it's
not immediately clear that a generic name like "write_value" relates
to BF or AbleScript).
 2021-06-02 18:20:30 -05:00
Alex Bethel 326d0511e7 Add Brainfuck functio interpretation 
BF functios can now be declared and called from AbleScript code.
Function parameters supplied from AbleScript are serialized manually
into byte sequences using the `BfWriter` trait, and are available from
BF code using the input operator, `,`.

At the moment, BF functios simply write output to stdout, and are
therefore incapable of communicating results to the rest of the
program; this might change in the future if we can get something close
to pass-by-reference working.
 2021-06-02 15:29:31 -05:00
Alexander Bethel 109c77eeb2 Implement more statements 
Added variable declaration, `if` statements, `loop` statements,
variable assignment, and variable banning to go along with
printing (which was already implemented). We still need function
declarations, brainfuck declarations, function calls, and the control
flow operators "break" and "hopback".
 2021-05-24 10:50:26 -05:00
Alexander Bethel b625a71711 Allow abool -> bool coercion 
The expression `sometimes & true` now evaluates to `true` 50% of the
time and false 50% of the time, rather than throwing a type error
because `sometimes` is not a bool.
 2021-05-21 12:25:37 -05:00
Alexander Bethel eccc00ff81 Implement basic interpreter 
Added code for interpreting parsed AbleScript expressions and
statements, and hooked it up to the REPL.
 2021-05-20 18:18:01 -05:00
able bdf27c83da Minor Changes 2021-05-03 19:33:21 -05:00
Erin 051f6e781f Added tests and loop flow 2021-05-02 18:12:51 +02:00
Erin ecce080378 Added T-Dark block 
- obeyed clippy
 2021-05-02 17:38:12 +02:00
Erin ca60f818eb Implemented function calls 2021-04-29 18:50:51 +02:00
Erin f3779deeb5 Added parsing of conditionals 2021-04-27 13:48:56 +02:00
Erin 3f9e6b72cc Made parser to throw error when unexpected EOF 2021-04-27 11:57:11 +02:00
Erin e020fc4267 Implemented abool 
- Tidied up code
 2021-04-18 23:40:41 +02:00
Erin 48dd930872 Initial parser work 2021-04-18 16:39:43 +02:00
able bc1eb42af4 variable things added 2021-04-13 18:01:19 -05:00