MappedWriteGuard in rustc_data_structures::sync - Rust
Description: An RAII write lock guard returned by `RwLockWriteGuard::map`, which can point to a subfield of the protected data.

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## MappedWriteGuard

# Type Alias MappedWriteGuard

Source

    pub type MappedWriteGuard<'a, T> = MappedRwLockWriteGuard<'a, RawRwLock, T>;

Expand description

An RAII write lock guard returned by `RwLockWriteGuard::map`, which can point to a subfield of the protected data.

The main difference between `MappedRwLockWriteGuard` and `RwLockWriteGuard` is that the former doesn’t support temporarily unlocking and re-locking, since that could introduce soundness issues if the locked object is modified by another thread.

## Aliased Type§

    pub struct MappedWriteGuard<'a, T> { /* private fields */ }

## Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain `repr(...)` attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 16 bytes