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make Option's iter method use a lifetime #4874

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make Option's iter method use a lifetime #4874

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4 changes: 2 additions & 2 deletions src/libcore/option.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -201,7 +201,7 @@ pub pure fn map_default<T, U>(opt: &r/Option<T>, def: U,
}

#[inline(always)]
pub pure fn iter<T>(opt: &Option<T>, f: fn(x: &T)) {
pub pure fn iter<T>(opt: &r/Option<T>, f: fn(x: &r/T)) {
//! Performs an operation on the contained value by reference
match *opt { None => (), Some(ref t) => f(t) }
}
Expand Down Expand Up @@ -313,7 +313,7 @@ impl<T> Option<T> {

/// Performs an operation on the contained value by reference
#[inline(always)]
pure fn iter(&self, f: fn(x: &T)) { iter(self, f) }
pure fn iter(&self, f: fn(x: &self/T)) { iter(self, f) }

/**
Gets an immutable reference to the value inside an option.
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8 changes: 4 additions & 4 deletions src/libstd/treemap.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -561,18 +561,18 @@ impl <K: Ord, V> TreeNode<K, V> {

pure fn each<K: Ord, V>(node: &r/Option<~TreeNode<K, V>>,
f: fn(&(&r/K, &r/V)) -> bool) {
do node.map |x| {
do node.iter |x| {
each(&x.left, f);
if f(&(&x.key, &x.value)) { each(&x.right, f) }
};
}
}

pure fn each_reverse<K: Ord, V>(node: &r/Option<~TreeNode<K, V>>,
f: fn(&(&r/K, &r/V)) -> bool) {
do node.map |x| {
do node.iter |x| {
each_reverse(&x.right, f);
if f(&(&x.key, &x.value)) { each_reverse(&x.left, f) }
};
}
}

// Remove left horizontal link by rotating right
Expand Down