This is a bit annoying as we are forced to use #[related] here which isn't quite what we want.
Ideally, this would use #[diagnostic_source] but, there's a bug upstream. See: zkat/miette#172.
In the similar spirit to what we did for sequences. Yet, we need to handle the case of body being just an assignment -- or a trace of an assignment which is basically the same thing.
Far less verbose than defining classes by hand, plus, it allows to have everything about a single error be co-located. And finally, it allows to use 'related', 'label' and so on more easily.
While Gleam originally allowed various kinds of expressions to be discarded in a sequence, we simply do not allow expressions to be discarded implicitly. So any non-final expression in a sequence must be a let-binding. This prevents silly mistakes.
- Display function's signature next to the function name
(instead of being repeated below the function documentation).
- Same for module constants
- Display record constructors in a more concise manner, with
constructors fields next to constructors.
- Display generic parameters, if any, next to the type
- Plus some minor color and icon rework.
Somehow missed it when reworking tuples. We need to allow the new
'NewLineLeftParen' token in this situation as well. Especially because
this is what the formatter outputs.
Due to how PlutusData works it doesn't make sense
to allow user defined types to contain
functions.
```
type Foo {
bar: fn(Int) -> Int
}
```
The above definition will now return an error.
There are restrictions regarding how modules are called, but given that packages are tight to repositories anyway; there's no way someone can publish and use an aiken package on 'aiken-lang' without being part of the organization. So the restriction on the command-line is pointless. Plus, it prevents us from using 'aiken-lang' as a placeholder name for tutorials.
This makes it easier to add new dependencies, without having to
manually edit the `aiken.toml` file.
The command is accessible via two different paths:
- aiken deps add
or simply
- aiken add
for this is quite common to find at the top-level of the command-line,
and, we still want to keep commands for managing dependencies grouped
under a command sub-group and not all at the top-level. So we're
merely promoting that one for visibility.
This is a bit cleaner, as the 'cmd/new' had many on-the-fly functions
which are better scoped inside this module.
Plus, it plays nicely with the std::str::FromStr trait definition.
This possibly breaks many Aiken programs out there, but it's for the
best. We haven't released the alpha yet so we still have a bit of
freedom when it comes to breaking change.
Plus, the migration path is easy, simply run:
```
find . -name "*.ak" | xargs sed -i "s/#(/(/g"
```
(or `-i ''` on MacOS).
This allows in case of issues with dependencies to at least safely
remove cached packages. Before that, it could be hard to know where
are even located the cached files without looking at the source code.
```
Clearing /Users/ktorz/Library/Caches/aiken/packages
Removing aiken-lang-stdlib-7ca9e659688ea88e1cfdc439b6c20c4c7fae9985.zip
Removing aiken-lang-stdlib-main@04eb45df3c77f6611bbdff842a0e311be2c56390f0fa01f020d69c93ff567fe5.zip
Removing aiken-lang-stdlib-6b482fa00ec37fe936c93155e8c670f32288a686.zip
Removing aiken-lang-stdlib-1cedbe85b7c7e9c4036d63d45cad4ced27b0d50b.zip
Done
```
Aiken's build system uses an internal global cache system to avoid
downloading the same packages over and over across projects. However,
prior to this commit, the cache key would be based of the dependency
version which can be either:
- A commit hash
- A branch or tag name
However, in the latter case, it means that the very first time we end
up fetching a dependency will lock its version forever (or until the
cache is cleared). This was inconvenient.
This commit changes that so that we use not only a branch name as
cache key, but additionally, the etag returned by the GitHub API
server. The etag is part of the HTTP headers, so it can be fetched
quickly using a simple HEAD request. It changes whenever the content
behind the endpoint changes -- which happens to be exactly what we
want. With this, we can quickly check whether an upstream package has
been updated and download the latest version should users have
specified a branch name as a version number.
For example, my current cache now looks as follow:
```
/Users/ktorz/Library/Caches/aiken/packages/
├── aiken-lang-stdlib-1cedbe85b7c7e9c4036d63d45cad4ced27b0d50b.zip
├── aiken-lang-stdlib-6b482fa00ec37fe936c93155e8c670f32288a686.zip
├── aiken-lang-stdlib-7ca9e659688ea88e1cfdc439b6c20c4c7fae9985.zip
└── aiken-lang-stdlib-main@04eb45df3c77f6611bbdff842a0e311be2c56390f0fa01f020d69c93ff567fe5.zip
```
rvcas