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This time, the issue is that TypeNullifier skips bodies of multi-statement closures. However, ExprRewriter will type happily pass them on to typeCheckClosureBody(). This could trigger assertions. Fix this by skipping type checking of multi-statement closures when diagnosing. There seems to be a minor QoI regression in some test cases that already looked pretty dodgy and/or had FIXMEs. However I think its worth fixing a crash.
8 lines
381 B
Swift
8 lines
381 B
Swift
// RUN: not %target-swift-frontend %s -parse
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// Distributed under the terms of the MIT license
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// Test case submitted to project by https://github.com/practicalswift (practicalswift)
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// Test case found by fuzzing
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class a{{}class a{struct S<k:CollectionType}}struct c{struct c<T where H:d{struct i{enum S{struct d{class B{let f=c{struct S{class B<T where T=a{enum B{var f=B{class
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