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22 commits

Author SHA1 Message Date
Erin 60b63a7699 Restructured project (#37) 
* Separation to two crates
- `ablescript`: library, language
- `ablescript_cli` - cli: repl and executor for files

* Added lints (back) to library
- unsafe_code and unwrap_used are forbidden
 2021-08-10 21:32:12 +02:00
Erin fa63fda7f8 Obeyed clippy 2021-07-29 23:22:38 +02:00
Erin 35ddf85a92 removed unused enum variant 2021-07-29 23:04:04 +02:00
Alex Bethel 5b87ed220a Eliminate type errors 
Hooray, we've just made a whole class of errors impossible! :D
 2021-07-16 19:03:27 -05:00
Alex Bethel e00df9d5ac Prettier error handling 2021-07-13 13:54:27 -05:00
Alex Bethel 53e624fdff Merge branch 'feature/read' 2021-06-19 17:34:19 -05:00
Alex Bethel 09d551075a Merge 'feature/forty-two' into master 2021-06-19 17:32:12 -05:00
Alex Bethel f7ac2a1a43 Implement read semantics in interpreter 
Also added a test file `iotest.able` to just read data and print
it (the `cat` of AbleScript I guess).
 2021-06-18 16:05:50 -05:00
Alex Bethel e709f398f7 Implement functio declaration & calling 2021-06-15 09:51:00 -05:00
Alex Bethel ede6eccc71 Make arithmetic errors evaluate to 42 2021-06-12 10:48:44 -05:00
Alex Bethel bdb32c4599 Remove 0..0 placeholder from unexpected_eof() 2021-06-07 20:03:26 -05:00
Erin afee5fb82d Added basic parsing 
- Expressions
- If, Functio
 2021-06-07 00:09:45 +02:00
Erin b9d10fae03 AST revamp 
- Unified terminology of span in error.rs
 2021-06-06 23:13:48 +02:00
Alex Bethel 2c35691ec4 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 7bfefd3ba1 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
Alexander Bethel 7537b4ac98 Implement break and hopback statements 2021-05-25 21:22:38 -05:00
Alexander Bethel e31b8fb00d 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
Erin 00a464321a Added parsing of conditionals 2021-04-27 13:48:56 +02:00
Erin 2a0b2952d4 Redone original parser 
= implemented original features
 2021-04-27 11:49:07 +02:00
Erin 138b9efadc Added testing for base55, new identifier lexing 2021-04-27 11:09:19 +02:00
Erin 47400ee2ce Starting work on parser improvements 
- Parser should parse single expressions
 2021-04-26 10:44:42 +02:00
Erin 3e2dc5fba9 Added function/variable parsing 
- Added block support
- TODO: Tidy it up
 2021-04-18 22:33:55 +02:00