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[SR-12994] Indexing: Assertion failed: (false && "Malformed curry thunk?"), function getUnwrappedCurryThunkExpr #55439

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nathawes opened this issue Jun 12, 2020 · 6 comments
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[SR-12994] Indexing: Assertion failed: (false && "Malformed curry thunk?"), function getUnwrappedCurryThunkExpr #55439

nathawes opened this issue Jun 12, 2020 · 6 comments
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@theblixguy
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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. found by stress tester Flag: An issue found by the SourceKit stress tester

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@nathawes
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Previous ID SR-12994
Radar rdar://problem/64306636
Original Reporter @nathawes
Type Bug
Status Resolved
Resolution Done
Additional Detail from JIRA
Votes 0
Component/s Source Tooling
Labels Bug, FoundByStressTester
Assignee @theblixguy
Priority Medium

md5: 82c204fe97816f55a583234bf8086b65

is duplicated by:

Issue Description:

Reproducer:

protocol MyProto {
  func compile() throws
}


func compile(x: MyProto) throws {
  try x.compile
}

Trace:

Assertion failed: (false && "Malformed curry thunk?"), function getUnwrappedCurryThunkExpr, file /Users/buildnode/jenkins/workspace/oss-swift-package-osx/swift/lib/AST/Expr.cpp, line 2049.
 

Thread 0 Crashed:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib          0x00007fff6b42d33a __pthread_kill + 10
1   libsystem_pthread.dylib         0x00007fff6b4e9e60 pthread_kill + 430
2   libsystem_c.dylib               0x00007fff6b3b48a2 __abort + 139
3   libsystem_c.dylib               0x00007fff6b3b4817 abort + 135
4   libsystem_c.dylib               0x00007fff6b3b3ac6 __assert_rtn + 314
5   swift                           0x0000000106774ac3 swift::AutoClosureExpr::getUnwrappedCurryThunkExpr() const (.cold.4) + 35
6   swift                           0x0000000103142429 swift::AutoClosureExpr::getUnwrappedCurryThunkExpr() const + 329
7   swift                           0x000000010221697e (anonymous namespace)::SemaAnnotator::walkToExprPre(swift::Expr*) + 206
8   swift                           0x000000010306abe7 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Expr*) + 71
9   swift                           0x000000010306aca3 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Expr*) + 259
10  swift                           0x000000010306cf7b swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Stmt*) + 219
11  swift                           0x00000001030700b8 (anonymous namespace)::Traversal::visitAbstractFunctionDecl(swift::AbstractFunctionDecl*) + 584
12  swift                           0x000000010306ab57 (anonymous namespace)::Traversal::doIt(swift::Decl*) + 215
13  swift                           0x000000010306aa6b swift::Decl::walk(swift::ASTWalker&) + 27
14  swift                           0x00000001031a4268 swift::SourceFile::walk(swift::ASTWalker&) + 216
15  swift                           0x0000000102215e6f swift::SourceEntityWalker::walk(swift::SourceFile&) + 255
16  swift                           0x000000010221e766 (anonymous namespace)::IndexSwiftASTWalker::visitModule(swift::ModuleDecl&) + 230
17  swift                           0x000000010221e64c swift::index::indexSourceFile(swift::SourceFile*, swift::index::IndexDataConsumer&) + 428
18  swift                           0x00000001022248f1 recordSourceFileUnit(swift::SourceFile*, llvm::StringRef, llvm::StringRef, bool, bool, bool, llvm::StringRef, llvm::ArrayRef<clang::FileEntry const*>, clang::CompilerInstance const&, swift::DiagnosticEngine&) + 1617
19  swift                           0x0000000102224236 swift::index::indexAndRecord(swift::SourceFile*, llvm::StringRef, llvm::StringRef, bool, bool, bool, llvm::StringRef, swift::DependencyTracker const&) + 230
20  swift                           0x0000000102100c4c emitIndexDataForSourceFile(swift::SourceFile*, swift::CompilerInstance const&) + 332
21  swift                           0x0000000102100abc performEndOfPipelineActions(swift::CompilerInstance&) + 524
22  swift                           0x00000001020f3351 performCompile(swift::CompilerInstance&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*) + 7761
23  swift                           0x00000001020f0519 swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 3529
24  swift                           0x000000010208cccd main + 861
25  libdyld.dylib                   0x00007fff6b2e5cc9 start + 1
@nathawes
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@swift-ci create

@theblixguy
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#32458

@theblixguy
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Fixed on master. @nathawes Please verify using the next available snapshot!

@tachyonics
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Any idea when this will merged into a Swift release? Looks like I have run into the same or a similar issue in Swift 5.3. Testing with the current nightly on master is fine.

@theblixguy
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Sorry, I don’t know. Since the fix was merged into master, you’ll have to wait until the next available Swift version (5.4 I believe).

@MaxDesiatov
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I've cherry-picked this for 5.3 in #34131

@swift-ci swift-ci transferred this issue from apple/swift-issues Apr 25, 2022
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@theblixguy theblixguy

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bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. found by stress tester Flag: An issue found by the SourceKit stress tester
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@MaxDesiatov @theblixguy @nathawes @tachyonics