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14 Commits

Author SHA1 Message Date
Hamish Knight
27995eed19 [Completion] Type-check parent closures for local functions 
Local functions can capture variables from parent
closures, so we need to make sure we type-check
parent closures when doing completion in a local
function. Ideally we ought to be able to be more
selective about the elements of the parent closure
that we type-check, but that's a more complex change
I'm leaving as future work for now.
 2024-11-11 19:34:21 +00:00
Ben Barham
ef8825bfe6 Migrate llvm::Optional to std::optional 
LLVM has removed llvm::Optional, move over to std::optional. Also
clang-format to fix up all the renamed #includes.
 2024-02-21 11:20:06 -08:00
Hamish Knight
ce43f0d2f4 Partially revert "[CodeComplete] Avoid distinguishing between closure types" 
This regresses completion performance, bring back
the distinction between the multi-statement
and single-expression fallback cases.

b147a17d755d833d8009ad5caa2f8a856692fdc6
 2024-01-30 14:08:54 +00:00
Hamish Knight
b1070f20a2 [CodeComplete] Avoid distinguishing between closure types 
This seems to be redundant now that we no longer
attempt to skip multi-statement closure bodies.
 2024-01-30 14:08:53 +00:00
Evan Wilde
f3ff561c6f [NFC] add llvm namespace to Optional and None 
This is phase-1 of switching from llvm::Optional to std::optional in the
next rebranch. llvm::Optional was removed from upstream LLVM, so we need
to migrate off rather soon. On Darwin, std::optional, and llvm::Optional
have the same layout, so we don't need to be as concerned about ABI
beyond the name mangling. `llvm::Optional` is only returned from one
function in
```
getStandardTypeSubst(StringRef TypeName,
                     bool allowConcurrencyManglings);
```
It's the return value, so it should not impact the mangling of the
function, and the layout is the same as `std::optional`, so it should be
mostly okay. This function doesn't appear to have users, and the ABI was
already broken 2 years ago for concurrency and no one seemed to notice
so this should be "okay".

I'm doing the migration incrementally so that folks working on main can
cherry-pick back to the release/5.9 branch. Once 5.9 is done and locked
away, then we can go through and finish the replacement. Since `None`
and `Optional` show up in contexts where they are not `llvm::None` and
`llvm::Optional`, I'm preparing the work now by going through and
removing the namespace unwrapping and making the `llvm` namespace
explicit. This should make it fairly mechanical to go through and
replace llvm::Optional with std::optional, and llvm::None with
std::nullopt. It's also a change that can be brought onto the
release/5.9 with minimal impact. This should be an NFC change.
 2023-06-27 09:03:52 -07:00
Hamish Knight
21e787bae8 [Sema] Walk SyntacticElementTarget for completion 
Instead of walking the single ASTNode from the
target, walk all AST nodes associated with the
target to find the completion expr. This is needed
to find the completion expr in a pattern for an
initialization target.
 2023-06-07 00:35:01 +01:00
Doug Gregor
200f2340d9 [Macros] Be deliberate about walking macro arguments vs. expansions 
Provide ASTWalker with a customization point to specify whether to
check macro arguments (which are type checked but never emitted), the
macro expansion (which is the result of applying the macro and is
actually emitted into the source), or both. Provide answers for the
~115 different ASTWalker visitors throughout the code base.

Fixes rdar://104042945, which concerns checking of effects in
macro arguments---which we shouldn't do.
 2023-02-28 17:48:23 -08:00
Alex Hoppen
8bdf68d483 [IDE] Check whether an AST node contains the IDE inspection point based on CharSourceRange 
This fixes an issue if the range ends with a string literal that contains the IDE inspection target. In that case the end of the range will point to the start of the string literal but the IDE inspection target is inside the string literal and thus after the range’s end.
 2023-02-20 15:37:38 +01:00
Ben Barham
79b0cd60a8 [Sema] Skip adding solutions to completion callback if needed 
If `CompletionContextFinder` fails to find a `CompletionNode`, skip
trying to filter and add solutions to the completion callback. This
prevents an assertion/crash in `filterSolutionsForCodeCompletion` which
assumes `CompletionNode` is non-null (either an expression or keypath).

Resolves rdar://99966094.
 2022-09-16 11:39:39 -07:00
Hamish Knight
4716f61fba [AST] Introduce explicit actions for ASTWalker 
Replace the use of bool and pointer returns for
`walkToXXXPre`/`walkToXXXPost`, and instead use
explicit actions such as `Action::Continue(E)`,
`Action::SkipChildren(E)`, and `Action::Stop()`.
There are also conditional variants, e.g
`Action::SkipChildrenIf`, `Action::VisitChildrenIf`,
and `Action::StopIf`.

There is still more work that can be done here, in
particular:

- SourceEntityWalker still needs to be migrated.
- Some uses of `return false` in pre-visitation
methods can likely now be replaced by
`Action::Stop`.
- We still use bool and pointer returns internally
within the ASTWalker traversal, which could likely
be improved.

But I'm leaving those as future work for now as
this patch is already large enough.
 2022-09-13 10:35:29 +01:00
Josh Soref
4c77c59269 Spelling sema (#42474) 
* spelling: accessibility

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* spelling: mismatch

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* spelling: missing

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* spelling: syntactically

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Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>
 2022-04-20 15:12:46 -07:00
Alex Hoppen
51777d5ff7 [CodeCompletion] Move TypeCheckCompletionCallbacks to IDE 2022-03-21 20:04:32 +01:00
Alex Hoppen
135c266115 [CodeCompletion] Call sawSolution when type checking a result builder 2022-03-16 23:17:11 +01:00
Alex Hoppen
d190e3f506 [CodeCompletion] Move CompletionContextFinder to its own file 2022-02-23 17:08:26 +01:00