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rust-status: improve documentation and readability...

rust-status: improve documentation and readability This patch is 2/3 in the series to improve the dirstate status code. It adds a number of common type aliases to add more obvious semantics to function signatures, improves/adds documentation where necessary and improves one or two patterns to be more idiomatic. Differential Revision: https://phab.mercurial-scm.org/D8662

Antoine Cezar - - Load All Authors

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             mod.rs
        
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                | application/rls-services+xml
            
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             / rust / hg-core / src / operations / mod.rs
          
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      mod find_root;

      pub use find_root::{FindRoot, FindRootError, FindRootErrorKind};

      /// An interface for high-level hg operations.

      ///

      /// A distinction is made between operation and commands.

      /// An operation is what can be done whereas a command is what is exposed by

      /// the cli. A single command can use several operations to achieve its goal.

      pub trait Operation<T> {

          type Error;

          fn run(&self) -> Result<T, Self::Error>;

      }

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				mod find_root;
				pub use find_root::{FindRoot, FindRootError, FindRootErrorKind};

				/// An interface for high-level hg operations.
				///
				/// A distinction is made between operation and commands.
				/// An operation is what can be done whereas a command is what is exposed by
				/// the cli. A single command can use several operations to achieve its goal.
				pub trait Operation<T> {
				type Error;
				fn run(&self) -> Result<T, Self::Error>;
				}