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Add a new lint for catching unbound lifetimes in return values #4908

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Add a new lint for catching unbound lifetimes in return values #4908

wants to merge 1 commit into from

Commits on Jan 10, 2020

  1. Add a new lint for catching unbound lifetimes in return values 

    This lint is based on some unsoundness found in Libra during security
audits. Some function signatures can look sound, but based on the concrete
types that end up being used, lifetimes may be unbound instead of anchored to
the references of the arguments or the fields of a struct. When combined with
unsafe code, this can cause transmuted lifetimes to be not what was intended.
    @metajack
    metajack committed Jan 10, 2020
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