EuroRust

When the current borrow checker, non-lexical lifetimes (NLL), was developed, one of the patterns the Rust developers wanted to add support for had to be abandoned: Case 3, in which a reference is conditionally returned early from a function. This case is particularly tricky to support as it requires a high-resolution analysis of the conditional flow references beyond the means of the current borrow checker. Therefore, current Rust does not support this code pattern (and others like it), even tho

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