42 lines
1.4 KiB
Rust
42 lines
1.4 KiB
Rust
//
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// imag - the personal information management suite for the commandline
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// Copyright (C) 2015-2019 Matthias Beyer <mail@beyermatthias.de> and contributors
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; version
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// 2.1 of the License.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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//
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use std::io::Write;
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use std::ops::Deref;
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use libimagstore::store::Entry;
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use failure::Fallible as Result;
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pub trait Viewer {
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fn view_entry<W>(&self, e: &Entry, sink: &mut W) -> Result<()>
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where W: Write;
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fn view_entries<I, E, W>(&self, entries: I, sink: &mut W) -> Result<()>
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where I: Iterator<Item = E>,
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E: Deref<Target = Entry>,
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W: Write
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{
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for entry in entries {
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let _ = self.view_entry(entry.deref(), sink)?;
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}
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Ok(())
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}
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}
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