Swift 2.0b4: Mutually recursive protocols cause swiftc to infinite loop and crash
Originator: | rix.rob | ||
Number: | rdar://22064783 | Date Originated: | 29-Jul-2015 09:52 PM |
Status: | Open | Resolved: | |
Product: | Developer Tools | Product Version: | Xcode-beta (7A165t) |
Classification: | Crash/Hang/Data Loss | Reproducible: | Always |
Summary: So, y’all use recursion too! Steps to Reproduce: This code: protocol A { typealias O : B } protocol B { typealias O : A } Expected Results: should not crash swiftc Actual Results: but totally does: 510 swift 0x0000000103a1c8bf swift::ArchetypeBuilder::addConformanceRequirement(swift::ArchetypeBuilder::PotentialArchetype*, swift::ProtocolDecl*, swift::RequirementSource) + 655 511 swift 0x0000000103a1c8bf swift::ArchetypeBuilder::addConformanceRequirement(swift::ArchetypeBuilder::PotentialArchetype*, swift::ProtocolDecl*, swift::RequirementSource) + 655 Regression: N/A Notes: N/A
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