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Issues list

Swift compiler often but-not-always crashes on async/await block using optional ObjC protocol method with callback bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79319 opened Feb 12, 2025 by palmin
Assertion failure swift::ProtocolConformanceRef::subst with 6.1 in release build bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79318 opened Feb 12, 2025 by vsarunas
False positives reported in Sema.NumSwift6Errors via -stats-output-dir bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels
#79291 opened Feb 11, 2025 by finestructure
【swift 6.1】Debug Swift with Xcode bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79286 opened Feb 11, 2025 by xiaoxu1234
5.10 compiler emits syntax error on code in #if(compiler>=6.0) block under specific conditions assertion failure Bug → crash: An assertion failure bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. † libswiftSyntax Archive • Area → compiler: the once-integrated C++ Syntax library succeeded by SwiftSyntax parser Area → compiler: The legacy C++ parser
#79285 opened Feb 10, 2025 by gwynne
Opaque types and variadic/pack iteration crashes the compiler bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software parameter packs Feature → generics: Parameter packs
#79281 opened Feb 10, 2025 by dehesa
Use loader notifications for module registration on Windows feature A feature request or implementation runtime The Swift Runtime Windows Platform: Windows
#79268 opened Feb 10, 2025 by compnerd
Compiler fails to catch data race bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. concurrency Feature: umbrella label for concurrency language features
#79262 opened Feb 10, 2025 by rayx
Failed to produce diagnostic for expression bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels
#79259 opened Feb 10, 2025 by lisabethshaw
Assertion failed: (!Name || (Name.getArgumentNames().size() == BodyParams->size())), function setParameters, file Decl.cpp, line 10212. bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. test failure test suite Area: test suite
#79255 opened Feb 10, 2025 by shahmishal
Build Crash When Passing In Index Buffer to meshopt_buildMeshlets() bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79252 opened Feb 9, 2025 by syeh1
swift-frontend assert condition bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79251 opened Feb 9, 2025 by NewDwarf
Add support for sending to withoutActuallyEscaping feature A feature request or implementation triage needed This issue needs more specific labels
#79250 opened Feb 9, 2025 by ph1ps
Global constant strings generated by nested macros cannot be written to binary files. bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels
#79235 opened Feb 8, 2025 by Asura19
Compile error when define a global constant with nested macro in package's executableTarget bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels
#79234 opened Feb 8, 2025 by Asura19
6.1 Windows CI swift-6.1-windows-toolchain broke bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels
#79226 opened Feb 7, 2025 by hjyamauchi
Lexical Context behaves differently in Unit Tests compared to App/Package usage swift macro Feature → declarations: Swift `macro` declarations
#79282 opened Feb 7, 2025 by Jeehut
Swift compiler crash: unsupported collection upcast kind bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79211 opened Feb 7, 2025 by ktraunmueller
Swift Compiler Crash When Creating Array of C++ Values in Swift bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79210 opened Feb 7, 2025 by juraskrlec
Incorrect warning: '#require(_:_:)' is redundant because '<expression>' never equals 'nil' bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. triage needed This issue needs more specific labels type checker Area → compiler: Semantic analysis
#79202 opened Feb 6, 2025 by mhrawdon
#expect crashes w/ EXC_BAD_ACCESS on collections of length greater than 2 where children refer to parent bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. crash Bug: A crash, i.e., an abnormal termination of software triage needed This issue needs more specific labels
#79182 opened Feb 6, 2025 by dleavitt
Unresolvable diagnostics for access control on import specifiers access control Feature → modifiers: Access control and access levels bug A deviation from expected or documented behavior. Also: expected but undesirable behavior. import Feature → declarations: `import` declarations triage needed This issue needs more specific labels
#79176 opened Feb 6, 2025 by compnerd
ProTip! What’s not been updated in a month: updated:<2025-01-12.