* Exploration of #2008
As I were trying to fix the behaviour of `format` command with the
`--stdin` global option, I noticed that actually it is already behaves
the same was as `dev scope` command (which was the desire at least at
this point).
So, no actual behaviour of the command is channged, only a few tests
added to showcase some edge cases of the command with the `--stdin`
option together.
Here are the highlights:
* The filename is **not** optional for both `dev scope` and `format`
even if with `stdin` the content of the file comes from the input.
* `format` command expects the stdin input to be a proper module
* the name of the stdin module should be aligned with the provided
filename even though its sources are not used
I think that some of the above behaviours we can consider to change. Let
me know what do you think about any of that.
Otherwise, the `dev scope` command can be replaced with `format`.
Currently the arity checker assumes that applications within a type
signature have arity unit. This is not the case where a type alias
function is used within a type signature that returns a positive arity
function type.
For example:
```
type T :=
| t : T;
funAlias : Type -> Type;
funAlias a := a -> a;
f : funAlias T;
f t := t;
```
* Closes https://github.com/anoma/juvix/issues/2020
Co-authored-by: Co-authored-by: janmasrovira <janmasrovira@gmail.com>
- Closes#1993
This pr makes it possible to use `~`, `..` and environment variables in
the `juvix.yaml` and all flags / input of the cli.
In the CLI, the shell will be responsible for replacing environment
variables with their value, so the usual syntax can be used. For the
`dependencies` field, I have implemented a parser that has some
restrictions:
1. Environment variables are given with the makefile-like syntax
`$(VAR)`
2. The three characters `$` `(` `)` are reserved for the environment
variables syntax.
They cannot be part of the path.
3. `~` is reserved for `$(HOME)`. I.e. the prepath `~~` will expand to
`$HOME$HOME`.
4. Nested environment variables are not allowed.
Thanks @paulcadman for the feedback. I think we are ready to merge this
nightmarish pr 👻
---------
Co-authored-by: Paul Cadman <git@paulcadman.dev>
This PR modifies the pretty printer for lambda clauses so that the body
will start on a new line if it is too long to fit on a single line. This
is exactly how we handle function clause bodies.
* Closes https://github.com/anoma/juvix/issues/2014
This PR fixes the broken links that refer to Juvix Examples in the
documentation. Ideally, this wouldn't occur since we utilize a link
checker, but this tool only works well for relative links, which was not
the case for the links of the examples. Additionally, I slightly
modified the CI workflow by generating the HTML for the examples first,
followed by the entire book.
- Closes #2001
- Check the output using this: https://jonaprieto.github.io/juvix/
This PR adds a builtin integer type to the surface language that is
compiled to the backend integer type.
## Inductive definition
The `Int` type is defined in the standard library as:
```
builtin int
type Int :=
| --- ofNat n represents the integer n
ofNat : Nat -> Int
| --- negSuc n represents the integer -(n + 1)
negSuc : Nat -> Int;
```
## New builtin functions defined in the standard library
```
intToString : Int -> String;
+ : Int -> Int -> Int;
neg : Int -> Int;
* : Int -> Int -> Int;
- : Int -> Int -> Int;
div : Int -> Int -> Int;
mod : Int -> Int -> Int;
== : Int -> Int -> Bool;
<= : Int -> Int -> Bool;
< : Int -> Int -> Bool;
```
Additional builtins required in the definition of the other builtins:
```
negNat : Nat -> Int;
intSubNat : Nat -> Nat -> Int;
nonNeg : Int -> Bool;
```
## REPL types of literals
In the REPL, non-negative integer literals have the inferred type `Nat`,
negative integer literals have the inferred type `Int`.
```
Stdlib.Prelude> :t 1
Nat
Stdlib.Prelude> :t -1
Int
:t let x : Int := 1 in x
Int
```
## The standard library Prelude
The definitions of `*`, `+`, `div` and `mod` are not exported from the
standard library prelude as these would conflict with the definitions
from `Stdlib.Data.Nat`.
Stdlib.Prelude
```
open import Stdlib.Data.Int hiding {+;*;div;mod} public;
```
* Closes https://github.com/anoma/juvix/issues/1679
* Closes https://github.com/anoma/juvix/issues/1984
---------
Co-authored-by: Lukasz Czajka <lukasz@heliax.dev>
This PR implements pretty printing of evaluation results consistently
with Juvix syntax. The printed values do not necessarily originate
directly from the source code. All functions/lambdas are printed as
`<fun>`.
The same mechanism is used to implement pretty printing of unmatched
pattern examples.
Juvix REPL now uses the new value printing mechanism to display
evaluation results. Typing `nil` in the REPL will now just display
`nil`. The command `juvix dev repl` still prints raw JuvixCore terms.
* Closes#1957
* Closes#1985
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 initial syntax highlighting for juvix code blocks and REPL
sessions in Markdown files rendered by mdbook. After this PR, only two
themes would be supported to ease maintenance: Light and Dark (Ayu).
The implementation is a specifically tailored version of
- https://github.com/anoma/highlightjs-juvix (plugin for
HighlightJS,v11.7).
to be compatible with the infamous HighlightJS 10.1.1, to be used just
for MdBook.
The output can be seen here (make sure the CI finished to check the last
version, otherwise run the website locally):
- https://jonaprieto.github.io/juvix/tutorials/learn.html
* Adds tests for recursive lets
* Adds more tests for pattern matching
* Adds the `FoldTypeSynonyms` transformation to the Geb pipeline, which
fixes a bug with type synonyms in Core-to-Geb
* Removes the discussion of IO from the tutorial
* Expands the section about coverage checking
* Fixes typos and language mistakes
* Updates the changelog in the docs folder (this doesn't happen
automatically with the new release)
There were two bugs here:
1. The _replNoDisambiguate option was set to True for `juvix repl`.
2. The disambiguateNames pass was being applied after the result node
had already been fetched from the infotable.
* Closes https://github.com/anoma/juvix/issues/1958
Now that lifting preserves the types, we can fold the lets afterwards.
This is a cheap optimisation that should always be done. In the WASM
pipeline it avoids allocating closures for constant functions assigned
to let-variables. In the GEB pipeline it reduces the size of the term
and the number of variables.
The new `juvix dev repl` command is a copy of the `juvix repl` with the
addition of `--no-disambiguate` flag that is present on the `juvix dev
core from-concrete` command.
The `juvix repl` command now does not have the `--transforms`,
`--show-de-bruijn` flags as these are only relevant for compiler
developers. The eval transforms are always applied.
By default `juvix dev repl` uses the eval transforms. You can override
this by specifying the `-t` flag.
Also we now run `disambiguateNames` transform on the info table in the
`dev repl` (unless the `--no-disambiguate-names` flag is set). This is
so the output of the `juvix dev repl` will match that of `juvix dev core
from-concrete` and also so the output can be parsed by back the core
parser.
* Closes https://github.com/anoma/juvix/issues/1914
Previously we were:
* discarding the types table
* discarding the name ids state
after processing an expression in the REPL.
For example evaluating:
```
let even : _; odd : _; odd zero := false; odd (suc n) := not (even n); even zero := true; even (suc n) := not (odd n) in even 10
```
would loop in the REPL.
We noticed that the `n` in `suc n` was being given type `Type` instead
of `Nat`. This was because the name id given to n was incorrect, the
REPL started using name ids from 0 again.
We fixed this issue by storing information, including the types table
and name ids state in the Artifacts data structure that is returned when
we run the pipeline for the first time. This information is then used
when we call functions to compile / type check REPL expressions.
---------
Co-authored-by: Paul Cadman <git@paulcadman.dev>
There's an error with this step on linux only, but we cannot see it
because of the `-s` flag on the Makefile call.
This commit removes the `-s` flag so we can diagnose the problem, but
also temporarily ignores the error to avoid blocking other PRs.
NB: This step passes on macOS.
