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Derive Hash trait for Tag and Context.

This commit is contained in:
KAMADA Ken'ichi 2017-07-11 23:29:26 +09:00
parent b8aefa2722
commit db718fe75a
1 changed files with 2 additions and 2 deletions
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4
src/tag.rs
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@ -47,7 +47,7 @@ use util::atou16;
// PartialEq and Eq need to be _automatically derived_ for Tag to
// emulate structural equivalency.
// <https://github.com/rust-lang/rfcs/pull/1445>
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
pub struct Tag(pub Context, pub u16);
impl Tag {
@ -94,7 +94,7 @@ impl fmt::Display for Tag {
}
/// An enum that indicates how a tag number is interpreted.
#[derive(Debug, Copy, Clone, PartialEq, Eq)]
#[derive(Debug, Copy, Clone, PartialEq, Eq, Hash)]
pub enum Context {
/// TIFF attributes defined in the TIFF Rev. 6.0 specification.
Tiff, // 0th/1st IFD