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doc: improve map_or and map_or_else

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This commit is contained in:
Tshepang Lekhonkhobe 2015-05-31 10:16:49 +02:00
parent 78c4d53871
commit eb3566f239
1 changed files with 8 additions and 6 deletions
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14
src/libcore/option.rs
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@ -422,7 +422,8 @@ pub fn map<U, F: FnOnce(T) -> U>(self, f: F) -> Option<U> {
}
}
/// Applies a function to the contained value or returns a default.
/// Applies a function to the contained value (if any),
/// or returns a `default` (if not).
///
/// # Examples
///
@ -435,14 +436,15 @@ pub fn map<U, F: FnOnce(T) -> U>(self, f: F) -> Option<U> {
/// ```
#[inline]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn map_or<U, F: FnOnce(T) -> U>(self, def: U, f: F) -> U {
pub fn map_or<U, F: FnOnce(T) -> U>(self, default: U, f: F) -> U {
match self {
Some(t) => f(t),
None => def
None => default,
}
}
/// Applies a function to the contained value or computes a default.
/// Applies a function to the contained value (if any),
/// or computes a `default` (if not).
///
/// # Examples
///
@ -457,10 +459,10 @@ pub fn map_or<U, F: FnOnce(T) -> U>(self, def: U, f: F) -> U {
/// ```
#[inline]
#[stable(feature = "rust1", since = "1.0.0")]
pub fn map_or_else<U, D: FnOnce() -> U, F: FnOnce(T) -> U>(self, def: D, f: F) -> U {
pub fn map_or_else<U, D: FnOnce() -> U, F: FnOnce(T) -> U>(self, default: D, f: F) -> U {
match self {
Some(t) => f(t),
None => def()
None => default()
}
}