This method had a messy contract:
- Setting the diags parameter to nullptr inhibited caching
- The initExpr out parameter could only used if no result
had yet been cached
Let's instead use the request evaluator here.
Replace a hand-rolled variant of the subject function used for actor
isolation checking with a call to it. This exposed some limitations of
the function, which would assert() when dealing with partial
applications that involved optionals. Fix those as well.
When building a curry thunk for unapplied references to instance
methods, the type checker would build a CallExpr rather than a
DotSyntaxCallExpr to work around various issues with source locations.
Fix the underlying issues with source locations in DotSyntaxCallExpr
so we can consistently build DotSyntaxCallExpr here, and assert that
we don't do this again:
* DotSyntaxCallExpr wasn't able to reason about having just one of its
children having source location information; fix it.
* @dynamicCallable support was passing the declaration source location
for the call expression, which was nowhere in the expression itself.
The above mistake was covering for this one.
We'll need this to get the right 'selfDC' when name lookup
finds a 'self' declaration in a capture list, eg
class C {
func bar() {}
func foo() {
_ = { [self] in bar() }
}
}
Introduce a new expression type for representing the result of an unresolved member chain. Use this expression type instead of an implicit ParenExpr for giving unresolved member chain result types representation in the AST during type checking.
LLVM, as of 77e0e9e17daf0865620abcd41f692ab0642367c4, now builds with
-Wsuggest-override. Let's clean up the swift sources rather than disable
the warning locally.
Unlike \keypath expressions, only the property components of #keypath
expressions were being resolved, so index wouldn't pick up references for their
qualifying types.
Also fixes a code completion bug where it was reporting members from the Swift
rather than ObjC side of bridged types.
Resolves rdar://problem/61573935
Unlike \keypath expressions, only the property components of #keypath
expressions were being resolved, so index wouldn't pick up references for their
qualifying types.
Also fixes a code completion bug where it was reporting members from the Swift
rather than ObjC side of bridged types.
Resolves rdar://problem/61573935
Similar to `try`, await expressions have no specific semantics of their
own except to indicate that the subexpression contains calls to `async`
functions, which are suspension points. In this design, there can be
multiple such calls within the subexpression of a given `await`.
Note that we currently use the keyword `__await` because `await` in
this position introduces grammatical ambiguities. We'll wait until
later to sort out the specific grammar we want and evaluate
source-compatibility tradeoffs. It's possible that this kind of prefix
operator isn't what we want anyway.
Introduce 'TypeCheckSingleASTNode' mode that only type checks single body
element and dependent necessities (i.e. referencing ValueDecls and their
dependencies).
Renamed swift::typeCheckAbstractFunctionBodyAtLoc() to
swift::typeCheckASTNodeAtLoc(DeclContext *, SourceLoc). That type checks
innermost 'ASTNode' at the location. Also, 'TypeCheckSingleASTNode' mode
skips type checking any "body" of the node (i.e. BraceStmt elements for
function body, if statement body, closure body, etc.)
Added on-demand type checking using it:
- VarDecl in TapExpr
- ParamDecl in ClosureExpr
- Return type of ClosureExpr
- Binding value in control statements
(e.g. ForEachStmt, SwitchStmt, DoCatchStmt, etc.)
rdar://problem/63932852
