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Implement Hash for ExternalName.

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This allows users to have HashMaps etc. with ExternalNames as keys.
This commit is contained in:
Dan Gohman
2017-11-06 11:34:09 -08:00
parent 1d8df2ed1e
commit 5dda19035d
1 changed files with 2 additions and 2 deletions
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4
lib/cretonne/src/ir/extname.rs
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@@ -15,7 +15,7 @@ use std::ascii::AsciiExt;
/// External names can also serve as a primitive testing and debugging tool. /// External names can also serve as a primitive testing and debugging tool.
/// In particular, many `.cton` test files use function names to identify /// In particular, many `.cton` test files use function names to identify
/// functions. /// functions.
#[derive(Debug, Clone, PartialEq, Eq, Default)] #[derive(Debug, Clone, PartialEq, Eq, Default, Hash)]
pub struct ExternalName(NameRepr); pub struct ExternalName(NameRepr);
impl ExternalName { impl ExternalName {
@@ -69,7 +69,7 @@ fn try_as_name(bytes: &[u8]) -> Option<String> {
const NAME_LENGTH_THRESHOLD: usize = 22; const NAME_LENGTH_THRESHOLD: usize = 22;
#[derive(Debug, Clone, PartialEq, Eq)] #[derive(Debug, Clone, PartialEq, Eq, Hash)]
enum NameRepr { enum NameRepr {
Short { Short {
length: u8, length: u8,