* [dhall format] Prefer unquoted URLs
This updates `dhall format` to prefer unquoted URLs.
I included the test cases described in #1109, but along the way I
discovered a standard bug so I have opened dhall-lang/dhall-lang#704 to
fix it. This change depends on that upstream fix.
Fixes#1109.
* pull in latest dhall-lang
* skip unimplemented tests
* Remove Dhall.X and replace with Data.Void
This commit removes the Dhall.X module and the Dhall.X.X type,
preferring the use of Data.Void.Void. As I'm sure a lot of people are
actually using X, I've added a type-alias type X = Void. However,
pattern matching on X would be a breaking change.
Fixes#1120.
* Restore unsafeCoerce
* Fix regression
* Unused
* Reorganise exports
* Fix dhall-nix
* Another fix
* Fix Dhall.LSP.Backend.Typing
* Fix dhall-bash
…to fix build failures due to the submodule pointing at an unreachable commit.
* Disable a currently failing testcase.
* Update the extra-source-files in dhall.cabal.
* Allow customization of remote import resolution
Makes the `Status` type more general; previously support for
`Network.HTTP.Client` was hardcoded. In short:
```
data Status = Status
{ _stack :: NonEmpty Chained
[...]
-- , _manager :: Maybe Dynamic
-- -- importing the same expression twice with different values
++ , _remote :: URL -> StateT Status IO Data.Text.Text
++ -- ^ The remote resolver, fetches the content at the given URL.
[...]
}
```
* Simplify and expose `toHeaders`
`toHeaders` will be needed for mock http testing
* Fix compilation without `with-http` flag
* Fix compilation with `with-http` flag
* Fix tests without `with-http` flag
Implements a mock http client that handles requests to:
- `https://raw.githubusercontent.com/dhall-lang/dhall-lang/master/`
- `https://test.dhall-lang.org/Bool/package.dhall`
- `https://httpbin.org/user-agent`
This allows tests involving remote imports to succeed even when compiled
without the `with-http` flag.
* Build `dhall` with HTTP support compiled out in CI
... to prevent regressions from occurring in the future
To be more precise (citing the haddocks):
Given a well-typed expression e, (isNormalized e) is equivalent to
(e == normalize e).
Given an ill-typed expression, isNormalized may return True or False.
An even closer correspondence between isNormalized and 'normalize' is
currently tricky to achieve as 'normalize' returns errors only for some
ill-typed expressions. Once 'normalize' is more principled in this
regard, isNormalized could be changed to return a (Maybe Bool).
This re-enables a property test checking this consistency. Since
'normalize' returns errors for some ill-typed expressions, we
catch have to catch these, which requires an NFData for Expr.
Since we only want to ensure that the benchmarks continue to
work, we use the following benchmark arguments to run them
as quickly as possible:
- `--quick` ensures that gauge runs only a single sample.
- `--min-duration=0` sets the number of iterations per sample to 1.
- `--include-first-iter` causes gauge to accept that one iteration
instead of discarding it and running a second one.
This also removes the dhall-command benchmark:
This was a non-standard benchmark that failed when run
without input from stdin. To replace this profiling tool,
I have added instructions for profiling the main executables
to the README.
This reduces the runtime of the `deep-nested-large-record` benchmark by about 50%.
Note that previously, contrary to its name and documentation, this function traversed a Dhall.Map in insertion order due to its use of Dhall.Map.toList! With this change, the traversal is changed to ascending key order.
Also:
- Fix the deep-nested-large-record benchmark
- Remove the map-operations benchmark: This benchmark actually reports a ~20% loss of performance for the unorderedTraverseWithKey_ change. Since we eventually care about dhall's performance we it's better not to be mislead by a questionable micro-benchmark.
`dhall diff` slightly misbehaves when diffing the following expression with
itself:
```dhall
λ(f : List Bool -> Bool) → f ([] : List Bool)
```
... producing the following diff:
```
λ(… : …
→ …)
→ …@…
- [ … ] : List …
+ [ … ] : List …
```
This is because there are two places in the `Dhall.Diff` module responsible
for comparing lists:
* Once in `diffApplicationExpression`, which compares two lists with at least
one type annotation between them
* Once in `diffPrimitiveExpression`, which compares two lists if neither one has
a type annotation
Those cases exhaustively cover all possible pairs of lists, but there was a
third (incorrect) fallback case that prematurely gave up and displayed them as
different. This fallback would trigger when applying a function to an empty
list, since the diffing algorithm wouldn't have a chance to return back to the
top-level `diffExpression` and try to compare the lists correctly in
`diffApplicationExpression`.
After this change, the diff now doesn't include a spurious difference:
```
λ(… : …
→ …)
→ …@…
…
```
Part of https://github.com/dhall-lang/dhall-lang/issues/563
This flag freezes imports in the same way as the Prelude by providing a
fallback unprotected import without an integrity check. The primary use
case for this is caching imports with a graceful fallback, which is why
the flag is named `--cache`
This adds a new `Dhall.Test.Util.discover` utility for auto-generating
a `TestTree` from a directory tree. This simplifies keeping up to date
with changes to the standard test suite.
- Dhall.Eval: new evaluator, conversion checker and normalizer.
There is no standalone alpha normalizer yet.
- There is a new option "new-normalize" for dhall executable, which uses
the new normalizer.
- Type checker is unchanged.
- new implementation: alphaNormalize, judgmentallyEqual, normalize
- normalizeWith takes a Maybe ReifiedNormalizer argument now, and switches to
the new evaluator whenever the input normalizer is Nothing
- QuickCheck test for isNormalized removed, because we don't support evaluation
of ill-typed terms, which the test would require.
