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172 Commits

Author SHA1 Message Date
Doug Gregor
133439dcbb [Constraint solver] Request contextual type information per expression. 
When requesting information about the contextual type of a constraint
system, do so using a given expression rather than treating it like
the global state that it is.
 2020-01-23 11:46:17 -08:00
Luciano Almeida
716e11f575 [Constraint System] Recording SpecifyObjectLiteralTypeImport fix when attempting literal result type variable binding and handle object literal in MissingArgumentsFailure 2020-01-21 20:39:44 -03:00
Luciano Almeida
68e09d64fd [CSFix] Creating object literal module import fix 2020-01-21 11:54:26 -03:00
Holly Borla
94bbb8f76e [ConstraintSystem] Finish porting unresolved member reference failures. 
This covers member failures where the error is at the declaration, so
the result of member lookup is "already diagnosed".
 2020-01-05 11:33:02 -08:00
Pavel Yaskevich
8bcc192591 [Diagnostics] Diagnose inability to infer (complex) closure return type 2019-12-19 12:16:30 -08:00
Pavel Yaskevich
5ba2e59c63 Merge pull request #28752 from xedin/simplify-potential-binding 
[ConstraintSystem] Record originator constraint for each type variable binding
 2019-12-13 11:50:02 -08:00
Pavel Yaskevich
f259286bd7 [CSFix] Convert missing explicit @escaping fix to be a contextual mismatch 
Sometimes diagnostic needs both sides of the conversion e.g.
when there is an attempt to bind generic argument to non-escaping type.
 2019-12-12 12:42:08 -08:00
Holly Borla
3d1ab4da67 Merge pull request #28712 from hborla/function-parameter-mismatch-diagnostics 
[ConstraintSystem] Port function parameter type mismatch diagnostics.
 2019-12-11 14:33:07 -08:00
Holly Borla
51c7c8c8f1 [ConstraintSystem] Port function parameter type mismatch diagnostics. 2019-12-11 10:45:52 -08:00
Brent Royal-Gordon
addbe3e5ed [NFC] Thread DeclNameRef through most of the compiler 
This huge commit contains as many of the mechanical changes as possible.
 2019-12-11 00:55:18 -08:00
Holly Borla
50abedd45c [Diagnostics] Keep track of the indices of the tuple elements whose 
types do not match in AllowTupleTypeMismatch/TupleContextualFailure.
 2019-12-09 11:04:34 -08:00
Holly Borla
1e013a02cf [ConstraintSystem] Move FailureDiagnostic::getFunctionArgApplyInfo 
into `ConstraintSystem`.
 2019-12-06 15:43:39 -08:00
Holly Borla
f9a1ab28f4 [ConstraintSystem] Port tuple type mismatches to the new framework 2019-12-06 13:12:57 -08:00
Pavel Yaskevich
3c5290c78c [Diagnostics] Diagnose inability to infer contextual base type for member ref 2019-12-03 12:07:16 -08:00
Pavel Yaskevich
ac1ab1dfb0 [CSFix] Fix inability to infer contextual base type for member ref 2019-12-03 12:07:16 -08:00
Pavel Yaskevich
15c58d19d5 [ConstraintSystem] Detect passing array to variadic argument in function conversions 
Initially this problem was only detected and diagnosed for calls.
So let's extend it to function conversions as well e.g.:

```swift
func foo<T>(_: [T]) {}
func bar<T>(_ f: (T...) -> ()) {}

bar { foo($0) }
```
 2019-12-03 12:07:15 -08:00
Pavel Yaskevich
bdeaced0f2 [CSFix] Convert force optional unwrap fix into a contextual one 2019-11-19 15:15:29 -08:00
Holly Borla
a9a0bba31b [Diagnostics] Don't apply the single parameter tuple splat fix if the 
parameter type is a generic parameter.
 2019-11-18 16:19:33 -08:00
Holly Borla
ea1a46c84d [ConstraintFix] Rather than creating a coalesced fix right before 
diagnosing failures in applySolutionFixes, coalesce fixes and
diagnose failures in one method on ConstraintFix.

This eliminates the need for the `DefaultGenericArgument` fix (which
was renamed from `ExplicitlySpecifyGenericArguments`) to have an
array of missing parameters, which was only used when the fixes were
coalesced. Instead, the coalesced arguments are used to create the
`MissingGenericArgumentsFailure` diagnostic directly.
 2019-11-13 14:15:40 -08:00
Robert Widmann
63896c1fc5 Make more high-level type checking endpoints utility 2019-11-10 13:03:46 -08:00
Doug Gregor
bc926f7eb7 [Constraint system] Drop the root expression from FailureDiagnostic. 
We're not using it for anything, now.
 2019-11-08 22:38:49 -08:00
Robert Widmann
7b9d28d7ba Make diagnoseSelfAssignment a utility 2019-11-06 15:08:59 -08:00
Pavel Yaskevich
30440d8235 [Diagnostics] Properly diagnose assignment mismatch in ambiguity cases 2019-11-05 12:38:13 -08:00
Pavel Yaskevich
7cd7cd43e6 [Diagnostics] Port self assignment diagnostic to the new framework 2019-11-05 12:38:13 -08:00
Holly Borla
e840d52258 [Diagnostics] Allow fixes with the same locator to be coalesced before 
application rather than throwing away subsequent fixes.

The "primary fix" decides whether or not to coalesce fixes that have
the same locator.
 2019-11-05 09:15:13 -08:00
Hamish Knight
65dda6d945 Address other review feedback 2019-11-03 08:42:26 -08:00
Hamish Knight
7077a68b83 [Sema] Diagnose unsound pointer conversions 
Diagnose ephemeral conversions that are passed to @_nonEphemeral
parameters. Currently, this defaults to a warning with a frontend flag
to upgrade to an error. Hopefully this will become an error by default
in a future language version.
 2019-11-03 08:42:25 -08:00
Pavel Yaskevich
6bb659c5a3 [Diagnostics] Add a diagnostic for incorrect use of trailing closures 2019-10-31 20:58:01 -07:00
Pavel Yaskevich
d87d22d336 [ConstraintSystem] Intoduce a fix for incorrect use of trailing closures 2019-10-31 20:57:09 -07:00
Pavel Yaskevich
1315207a22 [Diagnostics] Introduce extraneous call fix 
Detect and diagnose attempts to call variables and/or properties
which don't have a function type, so can't really support
invocation.
 2019-10-30 16:53:42 -07:00
Pavel Yaskevich
58329e0c27 Revert "[Diagnostics][Qol] SR-11295 Emit diagnostics for same type coercion. " 2019-10-25 01:05:07 -07:00
Luciano Almeida
a92e62f51f Fixing formatting issues 2019-10-23 23:54:48 -03:00
Luciano Almeida
4385dd854f Creating UnnecessaryCoercion warning fix 2019-10-21 23:03:12 -03:00
Pavel Yaskevich
8d05192204 Merge pull request #27728 from xedin/port-extraneous-args 
[Diagnostics] Diagnose extraneous argument(s) via fixes
 2019-10-18 10:42:56 -07:00
Pavel Yaskevich
2a0080c6e0 [Diagnostics] Add a workaround for inability to diagnose name shadowing 
Let's cover at least the most common cases - min/max. Fixing the
problem requires refactoring of `resolveDeclRefExpr`.
 2019-10-16 10:19:26 -07:00
Pavel Yaskevich
04850655dc [CSFix] Make sure single parameter tuple splat is detected correctly 
In situations like:

```swift
func foo<T>(x: T) {}
foo(a; 0, x: 42)
```

Let's not try to fix call to `foo` as a tuple splat because match is
in a middle of the argument list, it should be considered a regular
extraneous argument instead.
 2019-10-16 10:19:26 -07:00
Pavel Yaskevich
c97603f5d4 [CSDiagnostics] Diagnose extraneous arguments 2019-10-16 10:19:25 -07:00
Pavel Yaskevich
e97164dfce [CSFix] Record all available information about extraneous arguments 
Most importantly - index, label, and type, which are useful for
diagnostics.
 2019-10-16 10:19:25 -07:00
Pavel Yaskevich
e33a3402cb [ConstraintSystem] Make contextual function type available for matchCallArguments 
Helps diagnostics to avoid digging this type out from locator.
 2019-10-16 10:19:25 -07:00
Pavel Yaskevich
f1ed46ee82 [CSFix] Add a fix to remove extraneous arguments 
If there are more arguments than parameters, let's fix this by
ignoring (if possible) or removing extraneous arguments. Ignored
arguments could default to `Any` if they don't get any other
contextual type.
 2019-10-16 10:19:25 -07:00
Luciano Almeida
f554dd3f51 CoerceToCheckedCast::attempt logic 2019-10-15 19:12:34 -03:00
Luciano Almeida
30ffe13cba Merge branch 'master' of https://github.com/apple/swift into force-downcast-fix-explicit-coercion 2019-10-13 11:09:37 -03:00
Luciano Almeida
171d6ec87d Adjusting tests under test/Constraints/bridging-nsnumber-and-nsvalue.swift.gyb 2019-10-13 00:42:22 -03:00
Luciano Almeida
d896968d2c clang-format 2019-10-12 22:39:12 -03:00
Luciano Almeida
697b407589 Fixing test on test/Generics/conditional_conformances.swift 2019-10-12 18:20:23 -03:00
Luciano Almeida
05cea3a7b7 Fix issue with dictionary_downcast tests 2019-10-12 16:49:36 -03:00
Luciano Almeida
f39ff88113 Initial implementation of moving the checks 2019-10-12 15:22:16 -03:00
Pavel Yaskevich
7e6b4e4d57 [Diagnostics] Extend single parameter tuple splat to support generic parameters 
Currently single parameter tuple splat fix/diagnostic supports only
cases where parameter is a concrete tuple type, let's enhance that to
support generic parameters as well e.g.:

```swift
func foo<T>(_: T) {}
foo(0, 1, 2) // `T` expects arguments to form a tuple e.g. `foo((0, 1, 2))`
```
 2019-10-08 18:11:48 -07:00
Pavel Yaskevich
4203c2f9f3 [Diagnostics] Store synthesized arguments in missing arguments diagnostic 
Since we are about to start diagnosing more than just closures,
we need information about what synthesized arguments look like.
 2019-09-23 12:59:27 -07:00
Pavel Yaskevich
96598d8ebf Merge pull request #26207 from owenv/new-vararg-conversion-diag 
[Diagnostics] Improve diagnostic when attempting to pass an Array to a variadic argument
 2019-09-23 12:57:44 -07:00