Remove unnecessary borrow_parts() methods #449
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Accessing a struct through an std::syn::MutexGuard using implicit dereferencing can confuse the borrow checker. This situation arises when obtaining mutable references to more than one field of the struct, which is normally allowed. https://doc.rust-lang.org/nomicon/borrow-splitting.html However, when using implicit dereferencing, a mutable reference to the the entire struct is taken. Thus, attempting to access another field in this manner will lead to a compilation error. https://doc.rust-lang.org/error-index.html#E0499 A simple way to avoid this is to first obtain a mutable reference to the struct using explicit dereferencing.
TheBlueMatt
approved these changes
Jan 16, 2020
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Accessing a struct through an std::syn::MutexGuard using implicit
dereferencing can confuse the borrow checker. This situation arises when
obtaining mutable references to more than one field of the struct, which
is normally allowed.
https://doc.rust-lang.org/nomicon/borrow-splitting.html
However, when using implicit dereferencing, a mutable reference to the
the entire struct is taken. Thus, attempting to access another field in
this manner will lead to a compilation error.
https://doc.rust-lang.org/error-index.html#E0499
A simple way to avoid this is to first obtain a mutable reference to the
struct using explicit dereferencing.