- Closes#2330
- Closes#2329
This pr implements the syntax changes described in #2330. It drops
support for the old yaml-based syntax.
Some valid examples:
```
syntax iterator for {init := 1; range := 1};
syntax fixity cons := binary {assoc := right};
syntax fixity cmp := binary;
syntax fixity cmp := binary {}; -- debatable whether we want to accept empty {} or not. I think we should
```
# Future work
This pr creates an asymmetry between iterators and operators
definitions. Iterators definition do not require a constructor. We could
add it to make it homogeneous, but it looks a bit redundant:
```
syntax iterator for := mkIterator {init := 1; range := 1};
```
We could consider merging iterator and fixity declarations with this
alternative syntax.
```
syntax XXX for := iterator {init := 1; range := 1};
syntax XXX cons := binary {assoc := right};
```
where `XXX` is a common keyword. Suggestion by @lukaszcz XXX = declare
---------
Co-authored-by: Łukasz Czajka <62751+lukaszcz@users.noreply.github.com>
Co-authored-by: Lukasz Czajka <lukasz@heliax.dev>
As the title says.
- I found this bug while formatting the examples found in the tests
folder.
- In addition to printing the missing positive' keyword for data types,
the code also prints certain keyword annotations onto separate lines,
the ones that act as attributes to their term. While this is a matter of
personal preference, I find that it makes it easier to comment and
uncomment individual annotations.
This PR adds `juvix format` that can be used to format either a single
Juvix file or all files in a Juvix project.
## Usage
```
$ juvix format --help
Usage: juvix format JUVIX_FILE_OR_PROJECT [--check] [--in-place]
Format a Juvix file or Juvix project
When the command is run with an unformatted file it prints the reformatted source to standard output.
When the command is run with a project directory it prints a list of unformatted files in the project.
Available options:
JUVIX_FILE_OR_PROJECT Path to a .juvix file or to a directory containing a
Juvix project.
--check Do not print reformatted sources or unformatted file
paths to standard output.
--in-place Do not print reformatted sources to standard output.
Overwrite the target's contents with the formatted
version if the formatted version differs from the
original content.
-h,--help Show this help text
```
## Location of main implementation
The implementation is split into two components:
* The src API: `format` and `formatProject`
73952ba15c/src/Juvix/Formatter.hs
* The CLI interface:
73952ba15c/app/Commands/Format.hs
## in-place uses polysemy Resource effect
The `--in-place` option makes a backup of the target file and restores
it if there's an error during processing to avoid data loss. The
implementation of this uses the polysemy [Resource
effect](https://hackage.haskell.org/package/polysemy-1.9.0.0/docs/Polysemy-Resource.html).
The recommended way to interpret the resource effect is to use
`resourceToIOFinal` which makes it necessary to change the effects
interpretation in main to use `Final IO`:
73952ba15c/app/Main.hs (L15)
## Format input is `FilePath`
The format options uses `FilePath` instead of `AppFile f` for the input
file/directory used by other commands. This is because we cannot
determine if the input string is a file or directory in the CLI parser
(we require IO). I discussed some ideas with @janmasrovira on how to
improve this in a way that would also solve other issues with CLI input
file/parsing but I want to defer this to a separate PR as this one is
already quite large.
One consequence of Format using `FilePath` as the input option is that
the code that changes the working directory to the root of the project
containing the CLI input file is changed to work with `FilePath`:
f715ef6a53/app/TopCommand/Options.hs (L33)
## New dependencies
This PR adds new dependencies on `temporary` and `polysemy-zoo`.
`temporary` is used for `emptySystemTempFile` in the implementation of
the TempFile interpreter for IO:
73952ba15c/src/Juvix/Data/Effect/Files/IO.hs (L49)
`polysemy-zoo` is used for the `Fresh` effect and `absorbMonadThrow` in
the implementation of the pure TempFile interpreter:
73952ba15c/src/Juvix/Data/Effect/Files/Pure.hs (L91)
NB: The pure TempFile interpreter is not used, but it seemed a good idea
to include it while it's fresh in my mind.
* Closes https://github.com/anoma/juvix/issues/1777
---------
Co-authored-by: Jonathan Cubides <jonathan.cubides@uib.no>
* remove ≔ from the language and replace it by :=
* revert accidental changes in juvix input mode
* update stdlib submodule
* rename ℕ by Nat in the tests and examples
* fix shell tests
* Renaming MiniJuvix to Juvix
* Make Ormolu happy
* Make Hlint happy
* Remove redundant imports
* Fix shell tests and add target ci to our Makefile
* Make pre-commit happy
