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Replace uses of unsafe with safe alternatives #1714

Merged
merged 7 commits into from
May 5, 2024
Merged

Replace uses of unsafe with safe alternatives #1714

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a787cd3
Replace unsafe blocks with safe alternatives
Dec 4, 2023
4bee940
Replace unsafe blocks with safe alternatives
Dec 4, 2023
6084517
Merge branch 'nwadih/removeUnsafe' of github.com:nabilwadih/nom into …
Dec 4, 2023
b917148
update to fix tests
Dec 4, 2023
74f872c
use split_at(0) for consistensy
Dec 4, 2023
f152032
Merge branch 'main' into nwadih/removeUnsafe
Geal May 5, 2024
5ec2746
Update src/lib.rs
Geal May 5, 2024
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44 changes: 23 additions & 21 deletions src/traits.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -419,8 +419,11 @@
P: Fn(Self::Item) -> bool,
{
match self.find(predicate) {
// find() returns a byte index that is already in the slice at a char boundary
Some(i) => unsafe { Ok((self.get_unchecked(i..), self.get_unchecked(..i))) },
// The position i is returned from str::find() which means it is within the bounds of the string
Some(i) => {
let (str1, str2) = self.split_at(i);
Ok((str2, str1))

Check warning on line 425 in src/traits.rs

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src/traits.rs#L423-L425 

Added lines #L423 - L425 were not covered by tests
}
None => Err(Err::Incomplete(Needed::new(1))),
}
}
Expand All @@ -436,8 +439,11 @@
{
match self.find(predicate) {
Some(0) => Err(Err::Error(E::from_error_kind(self, e))),
// find() returns a byte index that is already in the slice at a char boundary
Some(i) => unsafe { Ok((self.get_unchecked(i..), self.get_unchecked(..i))) },
// The position i is returned from str::find() which means it is within the bounds of the string
Some(i) => {
let (str1, str2) = self.split_at(i);
Ok((str2, str1))
}
None => Err(Err::Incomplete(Needed::new(1))),
}
}
Expand All @@ -451,15 +457,12 @@
P: Fn(Self::Item) -> bool,
{
match self.find(predicate) {
// find() returns a byte index that is already in the slice at a char boundary
Some(i) => unsafe { Ok((self.get_unchecked(i..), self.get_unchecked(..i))) },
// the end of slice is a char boundary
None => unsafe {
Ok((
self.get_unchecked(self.len()..),
self.get_unchecked(..self.len()),
))
},
// The position i is returned from str::find() which means it is within the bounds of the string
Some(i) => {
let (str1, str2) = self.split_at(i);
Ok((str2, str1))
}
None => Ok(self.split_at(0)),
}
}

Expand All @@ -474,19 +477,18 @@
{
match self.find(predicate) {
Some(0) => Err(Err::Error(E::from_error_kind(self, e))),
// find() returns a byte index that is already in the slice at a char boundary
Some(i) => unsafe { Ok((self.get_unchecked(i..), self.get_unchecked(..i))) },
// The position i is returned from str::find() which means it is within the bounds of the string
Some(i) => {
let (str1, str2) = self.split_at(i);
Ok((str2, str1))
}
None => {
if self.is_empty() {
Err(Err::Error(E::from_error_kind(self, e)))
} else {
// the end of slice is a char boundary
unsafe {
Ok((
self.get_unchecked(self.len()..),
self.get_unchecked(..self.len()),
))
}
let (str1, str2) = self.split_at(self.len());
Ok((str2, str1))
}
}
}
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