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extra: Use do instead of for in extra::iter

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This commit is contained in:
blake2-ppc 2013-07-31 21:07:44 +02:00
parent 6d7a0c8cbc
commit 02bdf90cf6
1 changed files with 22 additions and 19 deletions
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41
src/libextra/iter.rs
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@ -72,12 +72,9 @@ pub trait FromIter<T> {
#[inline]
pub fn any<T>(predicate: &fn(T) -> bool,
iter: &fn(f: &fn(T) -> bool) -> bool) -> bool {
for iter |x| {
if predicate(x) {
return true;
}
do iter |x| {
predicate(x)
}
return false;
}
/**
@ -111,12 +108,14 @@ pub fn all<T>(predicate: &fn(T) -> bool,
#[inline]
pub fn find<T>(predicate: &fn(&T) -> bool,
iter: &fn(f: &fn(T) -> bool) -> bool) -> Option<T> {
for iter |x| {
let mut ret = None;
do iter |x| {
if predicate(&x) {
return Some(x);
}
}
None
ret = Some(x);
false
} else { true }
};
ret
}
/**
@ -132,7 +131,7 @@ pub fn find<T>(predicate: &fn(&T) -> bool,
#[inline]
pub fn max<T: Ord>(iter: &fn(f: &fn(T) -> bool) -> bool) -> Option<T> {
let mut result = None;
for iter |x| {
do iter |x| {
match result {
Some(ref mut y) => {
if x > *y {
@ -141,7 +140,8 @@ pub fn max<T: Ord>(iter: &fn(f: &fn(T) -> bool) -> bool) -> Option<T> {
}
None => result = Some(x)
}
}
true
};
result
}
@ -158,7 +158,7 @@ pub fn max<T: Ord>(iter: &fn(f: &fn(T) -> bool) -> bool) -> Option<T> {
#[inline]
pub fn min<T: Ord>(iter: &fn(f: &fn(T) -> bool) -> bool) -> Option<T> {
let mut result = None;
for iter |x| {
do iter |x| {
match result {
Some(ref mut y) => {
if x < *y {
@ -167,7 +167,8 @@ pub fn min<T: Ord>(iter: &fn(f: &fn(T) -> bool) -> bool) -> Option<T> {
}
None => result = Some(x)
}
}
true
};
result
}
@ -183,9 +184,10 @@ pub fn min<T: Ord>(iter: &fn(f: &fn(T) -> bool) -> bool) -> Option<T> {
#[inline]
pub fn fold<T, U>(start: T, iter: &fn(f: &fn(U) -> bool) -> bool, f: &fn(&mut T, U)) -> T {
let mut result = start;
for iter |x| {
do iter |x| {
f(&mut result, x);
}
true
};
result
}
@ -206,9 +208,10 @@ pub fn fold<T, U>(start: T, iter: &fn(f: &fn(U) -> bool) -> bool, f: &fn(&mut T,
#[inline]
pub fn fold_ref<T, U>(start: T, iter: &fn(f: &fn(&U) -> bool) -> bool, f: &fn(&mut T, &U)) -> T {
let mut result = start;
for iter |x| {
do iter |x| {
f(&mut result, x);
}
true
};
result
}
@ -246,7 +249,7 @@ impl<T> FromIter<T> for ~[T]{
#[inline]
pub fn from_iter(iter: &fn(f: &fn(T) -> bool) -> bool) -> ~[T] {
let mut v = ~[];
for iter |x| { v.push(x) }
do iter |x| { v.push(x); true };
v
}
}