[cxx-interop] Update tests for mutable struct fields #64877
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Methods that are marked as `const` in C++ can still modify a field of the object if the field is marked as `mutable`. We previously imported all methods of structs with mutable fields as mutating in Swift. Unfortunately this doesn't work well with libstdc++, which uses mutable fields for some commonly used container types. Our current user model assumes that we trust the `const` keyword on a C++ method, and import them as non-mutating in Swift. Let's make sure the tests reflect that.
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@swift-ci please smoke test |
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@swift-ci please test |
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Methods that are marked as
constin C++ can still modify a field of the object if the field is marked asmutable.We previously imported all methods of structs with mutable fields as mutating in Swift. Unfortunately this doesn't work well with libstdc++, which uses mutable fields for some commonly used container types.
Our current user model assumes that we trust the
constkeyword on a C++ method, and import them as non-mutating in Swift. Let's make sure the tests reflect that.