This PR resolves an issue where the `Meta.Context.configKey` field is
private but we still want to use the constructor of the structure for
setting other fields, which would be prevented by the module system
checks:
```lean
structure Context where
private config : Config := {}
private configKey : UInt64 := config.toKey
...
def ContextInfo.runMetaM (info : ContextInfo) (lctx : LocalContext) (x : MetaM α) : IO α := do
-- cannot call private constructor of `Meta.Context`!
(·.1) <$> info.runCoreM (x.run { lctx := lctx } { mctx := info.mctx })
```
Instead, the private field is extracted into an (existing) structure
that applies its default value:
```lean
/-- Configuration with key produced by `Config.toKey`. -/
structure ConfigWithKey where
private mk ::
config : Config := {}
key : UInt64 := config.toKey
structure Context where
keyedConfig : ConfigWithKey := default
```
Thus `Context`'s constructor remains public without exposing a way to
set `key` directly.
This PR improves the `evalInt?` function, which is used to evaluate
configuration parameters from the `ToInt` type class. This PR also adds
a new `evalNat?` function for handling the `IsCharP` type class, and
introduces a configuration option:
```
grind (exp := <num>)
```
This option controls the maximum exponent size considered during
expression evaluation. Previously, `evalInt?` used `whnf`, which could
run out of stack space when reducing terms such as `2^1024`.
closes#9427
This PR improves the 'Go to Definition' UX, specifically:
- Using 'Go to Definition' on a type class projection will now extract
the specific instances that were involved and provide them as locations
to jump to. For example, using 'Go to Definition' on the `toString` of
`toString 0` will yield results for `ToString.toString` and `ToString
Nat`.
- Using 'Go to Definition' on a macro that produces syntax with type
class projections will now also extract the specific instances that were
involved and provide them as locations to jump to. For example, using
'Go to Definition' on the `+` of `1 + 1` will yield results for
`HAdd.hAdd`, `HAdd α α α` and `Add Nat`.
- Using 'Go to Declaration' will now provide all the results of 'Go to
Definition' in addition to the elaborator and the parser that were
involved. For example, using 'Go to Declaration' on the `+` of `1 + 1`
will yield results for `HAdd.hAdd`, `HAdd α α α`, `Add Nat`,
``macro_rules | `($x + $y) => ...`` and `infixl:65 " + " => HAdd.hAdd`.
- Using 'Go to Type Definition' on a value with a type that contains
multiple constants will now provide 'Go to Definition' results for each
constant. For example, using 'Go to Type Definition' on `x` for `x :
Array Nat` will yield results for `Array` and `Nat`.
### Details
'Go to Definition' for type class projections was first implemented by
#1767, but there were still a couple of shortcomings with the
implementation. E.g. in order to jump to the instance in `toString 0`,
one had to add another space within the application and then use 'Go to
Definition' on that, or macros would block instances from being
displayed. Then, when the .ilean format was added, most 'Go to
Definition' requests were already handled using the .ileans in the
watchdog process, and so the file worker never received them to handle
them with the semantic information that it has available.
This PR resolves most of the issues with the previous implementation and
refactors the 'Go to Definition' control flow so that 'Go to Definition'
requests are always handled by the file worker, with the watchdog merely
using its .ilean position information to update the positions in the
response to a more up-to-date state. This is necessary because the file
worker obtains its position information from the .oleans, which need to
be rebuilt in order to be up-to-date, while the watchdog always receives
.ilean update notifications from each active file worker with the
current position information in the editor.
Finally, all of the 'Go to Definition' code is refactored to be easier
to maintain.
### Breaking changes
`InfoTree.hoverableInfoAt?` has been generalized to
`InfoTree.hoverableInfoAtM?` and now takes a general `filter` argument
instead of several boolean flags, as was the case before.
This PR removes uses of `Lean.RBMap` in Lean itself.
Furthermore some massaging of the import graph is done in order to avoid
having `Std.Data.TreeMap.AdditionalOperations` (which is quite
expensive) be the critical path for a large chunk of Lean. In particular
we can build `Lean.Meta.Simp` and `Lean.Meta.Grind` without it thanks to
these changes.
We did previously not conduct this change as `Std.TreeMap` was not
outperforming `Lean.RBMap` yet, however this has changed with the new
code generator.
This PR modifies the encoding from `Nat` to `Int` used in `grind
cutsat`. It is simpler, more extensible, and similar to the generic
`ToInt`. After update stage0, we will be able to delete the leftovers.
This PR extends the `Eq` simproc used in `grind`. It covers more cases
now. It also adds 3 reducible declarations to the list of declarations
to unfold.
This PR implements `exists` normalization using a simproc instead of
rewriting rules in grind. This is the first part of the PR, after update
stage0, we must remove the normalization theorems.
This PR implements `forall` normalization using a simproc instead of
rewriting rules in `grind`. This is the first part of the PR, after
update stage0, we must remove the normalization theorems.
This PR fixes stealing of `⇓` syntax by the new notation for total
postconditions by demoting it to non-builtin syntax and scoping it to
`Std.Do`.
Co-authored-by: Sebastian Graf <sg@lean-fro.org>
This PR tries to improve the E-matching pattern inference for `grind`.
That said, we still need better tools for annotating and maintaining
`grind` annotations in libraries.
closes#9125
This PR fixes the syntax of `grind` modifiers to use `patternIgnore` for
cases where both unicode and ascii variants are matched. This fixes an
issue where several variants of grind syntax weren't accepted (e.g.
`@[grind ← gen]`). Additionally, this reduces the chance that we get
another syntax matching bootstrap hell.
