Allow recovering at most one element of a tuple to mutable capability. #2585
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It is now allowed to recover one mutable element in the tuple, as long as all other elements are already safe. In addition, the compiler now reports an error when attempting to recover unsafe tuples instead of silently accepting without actually lifting the capabilities.
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@Praetonus - is this related to open issue #1972 in any way? |
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Yes, this implements one of the solution we discussed in that issue. |
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Allow recovering at most one element of a tuple to mutable capability.
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It is now allowed to recover one mutable element in the tuple, as long as all other elements are already safe.
In addition, the compiler now reports an error when attempting to recover unsafe tuples instead of silently accepting without actually lifting the capabilities.