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Author SHA1 Message Date
Erin 711ad27e00 Basic BfFunctio support 2021-06-11 17:52:47 +02:00
Alex Bethel 41316f5696 Re-enable assignment semantics 2021-06-11 10:05:48 -05:00
Erin 6f16d2594b Added variable assignment to parser 
- Fixed parse error, that `rlyeh` returned HopBack
 2021-06-11 16:59:40 +02:00
Erin 851f04c653 Merge pull request #29 from HTG-YT/interpreter-fixes 
add `interessant`, `nevergonnagiveyouup` and `funny` constants
 2021-06-11 09:33:48 +02:00
HTG-YT dd28ff985f add nevergonnagiveyouup constant 2021-06-11 15:26:30 +08:00
HTG-YT 77749bc32b add interessant and funny constants 2021-06-11 15:19:27 +08:00
Alex Bethel 7d7c1e4a1b Fix interpreter variable persistence bug 2021-06-08 19:21:33 -05:00
Alex Bethel dc5ef63fef Better error handling in REPL 
We have much better spanned expression support, so now we get to show
it off!
 2021-06-07 20:08:38 -05:00
Alex Bethel a0c1f93392 Remove 0..0 placeholder from unexpected_eof() 2021-06-07 20:03:26 -05:00
Alex Bethel ce20611c07 Fix all 0..0 span placeholders in interpret.rs 2021-06-07 19:57:44 -05:00
Alex Bethel d8f462e0b5 Fix unit tests 2021-06-07 17:35:49 -05:00
Alex Bethel addda8fc87 Remove giant comment block left in by mistake 2021-06-07 16:28:27 -05:00
Alex Bethel 426aee6a2b Repair interpreter after parser changes 2021-06-07 16:20:20 -05:00
Erin 903b1a3809 Added T-Dark test 2021-06-07 23:06:13 +02:00
Erin 8bd61a4a65 Added tests, Bugfix 
- Originally, it spanned from operator (bug)
 2021-06-07 22:58:28 +02:00
Erin 1f78cb0ee1 Added missing mut 2021-06-07 22:24:43 +02:00
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
Erin f893e24aed Changed position terminology 2021-06-07 21:28:24 +02:00
Erin 2084ebeed1 Removed unwraps, added Rlyeh 2021-06-07 11:07:50 +02:00
Erin b7464f6ad3 Implement function calls 
- And printing
- Revised terminology in Lexer
- Control flow
 2021-06-07 11:00:06 +02:00
Erin b6bce72b94 Added logical operators 2021-06-07 09:17:30 +02:00
Erin 97f0271534 Binary operator boilerplate reduction 2021-06-07 09:17:18 +02:00
Erin a5a048728c Added basic parsing 
- Expressions
- If, Functio
 2021-06-07 00:09:45 +02:00
Erin b04bd77672 Initial chthulic error impl in Lexer 
- See discussions #17
 2021-06-06 23:15:11 +02:00
Erin 93065e7dc9 AST revamp 
- Unified terminology of span in error.rs
 2021-06-06 23:13:48 +02:00
Erin 6fd95f3cc2 Updated AST 2021-06-06 21:09:18 +02:00
Erin afe6588c05 Removed custom Lexer, reorganised Token definition 
- As peeking will not be involved in parsing, it was removed
 2021-06-06 20:28:13 +02:00
Erin 2c15f3dc17 Deleted old parser 2021-06-06 20:05:18 +02:00
Alex Bethel 4bda25c9f3 Correct spelling of "occurred" 2021-06-05 08:50:20 -05:00
Alex Bethel 6c2d5cc84a Prettier error handling 2021-06-04 18:56:26 -05:00
Able 5d230431e0 Merge pull request #28 from AlexBethel/bf-functio 2021-06-02 20:02:53 -05:00
Alex Bethel 528de718dc Clean up eval_expr some more 
I keep going back and forth on how I want this block to look :P
Anyway, this is *probably* its final-ish form, until the parser gets
re-written.
 2021-06-02 18:41:20 -05:00
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
Alex Bethel 07195d4cf6 Fix panic on arithmetic error 
Divide by zero and add, subtract, or multiply with overflow are all
caught now and reported as an ArithmeticError, rather than causing the
interpreter to panic.
 2021-05-30 13:32:29 -05:00
Alex Bethel acfd81ead2 More thorough unit tests 2021-05-30 13:32:29 -05:00
Alex Bethel 344a11084e Add some unit tests to interpret.rs 
Currently `overflow_should_not_panic` and `variable_persistence` both
fail due to bugs in the interpreter.
 2021-05-30 13:32:29 -05:00
Able 90773eea3d Merge pull request #27 from AlexBethel/master 2021-05-29 17:14:25 -05:00
Alex Bethel 099b9e23d6 Make base-55 encoding & decoding match 
Changed "U"'s encoding to -210, so now when the README claims "U =
-210", it's actually accurate :)
 2021-05-29 14:24:46 -05:00
Alex Bethel 585bf2e19f Use single-letter identifiers as base-55 digits 2021-05-29 10:45:39 -05:00
Able 7b21eaf48a Merge pull request #26 from Seppel3210/patch-1 2021-05-28 05:10:43 -05:00
Seppel3210 d52c775ed1 Change "*" versions to explicit versions 
Change "*" versions to explicit versions in Cargo.toml
 2021-05-28 09:30:16 +02:00
Able e02edbbd16 Update README.md 2021-05-27 17:51:08 -05:00
Able 18973333b0 Merge pull request #24 from AlexBethel/master 2021-05-25 23:06:08 -05:00
Alex Bethel c906366e3f Improve name & documentation accuracy 
Renamed ControlFlow -> HaltStatus because that's what the enum really
is -- a status on why something halted. Also reviewed `interpret.rs`'s
documentation and fixed a few things that were out of date.
 2021-05-25 21:55:02 -05:00
Alexander Bethel ec81ead3ea Implement break and hopback statements 2021-05-25 21:22:38 -05:00
Alexander Bethel 669f379700 Better abstractions, implement scoping rules 2021-05-25 13:26:01 -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
Able c27837a807 Slightly more curse 2021-05-24 01:18:36 -05:00
Able 84016d3dcd Merge pull request #22 from AlexBethel/master 2021-05-21 12:29:03 -05:00