Commit Graph

28 Commits

Author SHA1 Message Date
Casey Rodarmor
629c75ff04
Use stable rustfmt instead of nightly (#967) 2021-09-16 13:44:40 +00:00
Casey Rodarmor
1b0fafea75
Add loader and refactor errors (#917)
This commit adds a `Loader` type, which can be used to load multiple
source strings. This was done to support the work on modules, but
coincidentally enabled consolidating errors, since now `Config::run`
can take a `&Loader`, and in the event of an error, return and `Error`
that borrows from loaded strings. Multiple error types have been
consolidated, and a bunch of ad-hoc error printing was removed.
2021-07-26 01:26:06 -07:00
Casey Rodarmor
0fea73455b
Fix circular variable dependency error message (#909) 2021-07-20 01:10:35 +00:00
Liam
a24c86ed5a
Add string manipulation functions (#888) 2021-07-03 19:39:45 +00:00
Casey Rodarmor
10282bd636
Turn = deprecation warning into a hard error (#780)
It's been around two and a half years, and many versions, since this
warning was first introduced, so it feels reasonable to finally turn it
into a hard error. It will remain a special-cased error for a little
while.
2021-03-28 23:39:23 -07:00
Casey Rodarmor
19f7ad09a7
Add conditional expressions (#714)
Add conditional expressions of the form:

   foo := if lhs == rhs { then } else { otherwise }

`lhs`, `rhs`, `then`, and `otherwise` are all arbitrary expressions, and
can recursively include other conditionals. Conditionals short-circuit,
so the branch not taken isn't evaluated.

It is also possible to test for inequality with `==`.
2020-10-26 18:16:42 -07:00
Casey Rodarmor
3ec7dea4a3
Use unstable rustfmt configuration options (#592) 2020-02-10 20:07:06 -08:00
Casey Rodarmor
2d3134a91c
Reform scope and binding (#556)
Clean up scope handling by introducing `Binding` and `Scope` objects.
2019-12-07 03:09:21 -08:00
Casey Rodarmor
d2decbfdb8
Resolve functions (#550)
Modifies parsing to return strongly-typed `Thunk`s, which contain both
the function implementation, as well as the correct number of arguments.

This moves unknown function and function argument count mismatch errors
to parse time.
2019-11-21 12:14:10 -06:00
Casey Rodarmor
72bc85e4ea
Un-implement Deref for Table (#546)
Remove `Deref` implementation for `Table`, to make sure we're using
`Table` and not `BTreeMap`.
2019-11-20 16:19:49 -06:00
Casey Rodarmor
598f1c3200
Refactor Compilation error to contain a Token (#535)
Use a `Token` to represent the error context, instead of a mess of
fields. Remove write_message_context in favor of `Token::write_context`.
2019-11-13 19:32:50 -08:00
Casey Rodarmor
aefdcea7d0
Gargantuan refactor (#522)
- Instead of changing the current directory with `env::set_current_dir`
  to be implicitly inherited by subprocesses, we now use
  `Command::current_dir` to set it explicitly. This feels much better,
  since we aren't dependent on the implicit state of the process's
  current directory.

- Subcommand execution is much improved.

- Added a ton of tests for config parsing, config execution, working
  dir, and search dir.

- Error messages are improved. Many more will be colored.

- The Config is now onwed, instead of borrowing from the arguments and
  the `clap::ArgMatches` object. This is a huge ergonomic improvement,
  especially in tests, and I don't think anyone will notice.

- `--edit` now uses `$VISUAL`, `$EDITOR`, or `vim`, in that order,
  matching git, which I think is what most people will expect.

- Added a cute `tmptree!{}` macro, for creating temporary directories
  populated with directories and files for tests.

- Admitted that grammer is LL(k) and I don't know what `k` is.
2019-11-09 21:43:20 -08:00
Casey Rodarmor
b2285ce0e0
Reform Parser (#509)
Just's first parser performed both parsing, i.e the transformation of a
token stream according to the language grammar, and a number of consistency
checks and analysis passes.

This made parsing and analysis quite complex, so this diff introduces a
new, much cleaner `Parser`, and moves existing analysis into a dedicated
`Analyzer`.
2019-11-07 10:55:15 -08:00
Casey Rodarmor
1cb90f4e65
Use pub(crate) instead of pub (#471)
Eventually, there will probably be a `crate` visibility specifier that
does the same thing as `pub(crate)`. This commit replaces `pub` with
`pub(crate)`, so when `crate` is available we can easily switch to it.
2019-09-21 15:35:03 -07:00
Casey Rodarmor
9c82a1e329
Move CompilationErrorKind into separate module (#416) 2019-04-19 02:40:25 -07:00
Casey Rodarmor
415c84ea39
Refactor and rename test macros (#415) 2019-04-19 02:17:43 -07:00
Casey Rodarmor
596ea34460
Replace regex-based lexer with character-at-a-time lexer (#406) 2019-04-15 22:40:02 -07:00
Casey Rodarmor
fe0a6c252c
Allow arbitrary expressions as default arguments (#400) 2019-04-11 23:58:08 -07:00
Casey Rodarmor
3a287b864a
Housekeeping (#394)
- Upgrade to rust 2018
- Update dependencies
- Use BTree{Map,Set} instead of Map and Set
2019-04-11 15:23:14 -07:00
Casey Rodarmor
3d67786aaf
Förmatterdämmerung (#346)
Format with rustfmt
2018-12-08 14:29:41 -08:00
Casey Rodarmor
68b343bc17
Make .env vars available in env_var functions (#310) 2018-03-17 09:17:41 -07:00
Casey Rodarmor
70234f6193
Add dotenv integration (#306) 2018-03-05 13:21:35 -08:00
Casey Rodarmor
79c0994387
Add env_var(key) and env_var_or_default(key, default) functions (#280)
`env_var(key)` looks up the value of the environment variable with name `key`, aborting execution if it is not found.

`env_var_or_default(key, default)` looks up the value of the environment variable with name `key`, returning `default` if it is not found.
2017-12-02 23:59:07 +01:00
Casey Rodarmor
afa4aebd4a
Add functions (#277)
– Parse unary (no-argument) functions
– Add functions for detecting the current os, arch, and os family, according to rustc's cfg attributes
2017-12-02 14:37:10 +01:00
Casey Rodarmor
afe2c0f94e
Refactor more tests into macro invocations (#259) 2017-11-18 01:44:59 -08:00
Casey Rodarmor
28a57d9828
Refactor evaluators and resolvers into common form (#258) 2017-11-18 01:18:04 -08:00
Casey Rodarmor
13a124d659
Refactor some other stuff (#252) 2017-11-17 17:28:06 -08:00
Casey Rodarmor
2b6b715528
Refactor Everything (#250) 2017-11-16 23:30:08 -08:00