upstream/mercurial-mirror Files · rust/hg-core/src/transaction.rs

rust-vfs: rename `open` to `open_write` and `open_read` to `open`...

rust-vfs: rename `open` to `open_write` and `open_read` to `open` `open` being read *and* write is surprising because it differs from the Rust stdlib where `std::fs::File::open` is read-only by default. More importantly, writing is more dangerous than reading, so let's make it more explicit.

Raphaël Gomès - - Load All Authors

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             transaction.rs
        
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                | application/rls-services+xml
            
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             / rust / hg-core / src / transaction.rs
          
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      use std::path::Path;

      /// The Mercurial transaction system is based on the append-only nature

      /// of its core files. This exposes the necessary methods to safely write to

      /// the different core datastructures.

      pub trait Transaction {

          /// Record the state of an append-only file before update

          fn add(&mut self, file: impl AsRef<Path>, offset: usize);

          // TODO the rest of the methods once we do more in Rust.

      }

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				use std::path::Path;

				/// The Mercurial transaction system is based on the append-only nature
				/// of its core files. This exposes the necessary methods to safely write to
				/// the different core datastructures.
				pub trait Transaction {
				/// Record the state of an append-only file before update
				fn add(&mut self, file: impl AsRef<Path>, offset: usize);

				// TODO the rest of the methods once we do more in Rust.
				}