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Add feature for _implicitSelfCapture attribute. #37334

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Merged
merged 1 commit into from
May 8, 2021
Merged

Add feature for _implicitSelfCapture attribute. #37334

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1 change: 1 addition & 0 deletions include/swift/Basic/Features.def
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Original file line number Diff line number Diff line change
Expand Up @@ -48,6 +48,7 @@ LANGUAGE_FEATURE(BuiltinExecutor, 0, "Builtin.Executor type", true)
LANGUAGE_FEATURE(BuiltinContinuation, 0, "Continuation builtins", true)
LANGUAGE_FEATURE(BuiltinTaskGroup, 0, "TaskGroup builtins", true)
LANGUAGE_FEATURE(InheritActorContext, 0, "@_inheritActorContext attribute", true)
LANGUAGE_FEATURE(ImplicitSelfCapture, 0, "@_implicitSelfCapture attribute", true)
LANGUAGE_FEATURE(BuiltinBuildExecutor, 0, "Executor-building builtins", true)

#undef LANGUAGE_FEATURE
11 changes: 11 additions & 0 deletions lib/AST/ASTPrinter.cpp
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Expand Up @@ -2776,6 +2776,17 @@ static bool usesFeatureInheritActorContext(Decl *decl) {
return false;
}

static bool usesFeatureImplicitSelfCapture(Decl *decl) {
if (auto func = dyn_cast<AbstractFunctionDecl>(decl)) {
for (auto param : *func->getParameters()) {
if (param->getAttrs().hasAttribute<ImplicitSelfCaptureAttr>())
return true;
}
}

return false;
}

/// Determine the set of "new" features used on a given declaration.
///
/// Note: right now, all features we check for are "new". At some point, we'll
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