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| author | Patrick Walton <[email protected]> | 2011-04-07 10:14:25 -0700 |
|---|---|---|
| committer | Patrick Walton <[email protected]> | 2011-04-07 10:14:25 -0700 |
| commit | 2a894cabc237f32484dd9fb4265790c60eefd661 (patch) | |
| tree | 3d3b128ae9670f7b425d6cd68936482f603ca656 /src/lib/option.rs | |
| parent | Merge branch 'master' of github.com:graydon/rust (diff) | |
| parent | Run optimizations. (diff) | |
| download | rust-2a894cabc237f32484dd9fb4265790c60eefd661.tar.xz rust-2a894cabc237f32484dd9fb4265790c60eefd661.zip | |
Merge branch 'master' of github.com:graydon/rust
Diffstat (limited to 'src/lib/option.rs')
| -rw-r--r-- | src/lib/option.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/lib/option.rs b/src/lib/option.rs index 29a6f6eb..66a41bca 100644 --- a/src/lib/option.rs +++ b/src/lib/option.rs @@ -38,6 +38,13 @@ fn is_none[T](&t[T] opt) -> bool { } } +fn from_maybe[T](&T def, &t[T] opt) -> T { + alt(opt) { + case (none[T]) { ret def; } + case (some[T](?t)) { ret t; } + } +} + // Local Variables: // mode: rust; // fill-column: 78; |