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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
303 B
Swift
8 lines
303 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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func a{class A{{}var _=Int{func T{struct e{enum b{struct B{class b{class a{func a<f:f.c
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