bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/test-utils/src/minicore.rs')
-rw-r--r--crates/test-utils/src/minicore.rs58
1 files changed, 55 insertions, 3 deletions
diff --git a/crates/test-utils/src/minicore.rs b/crates/test-utils/src/minicore.rs
index 4a2346193b..fd06736a25 100644
--- a/crates/test-utils/src/minicore.rs
+++ b/crates/test-utils/src/minicore.rs
@@ -32,7 +32,7 @@
//! error: fmt
//! fmt: option, result, transmute, coerce_unsized, copy, clone, derive
//! fn: tuple
-//! from: sized
+//! from: sized, result
//! future: pin
//! coroutine: pin
//! dispatch_from_dyn: unsize, pin
@@ -332,6 +332,25 @@ pub mod convert {
t
}
}
+
+ pub trait TryFrom<T>: Sized {
+ type Error;
+ fn try_from(value: T) -> Result<Self, Self::Error>;
+ }
+ pub trait TryInto<T>: Sized {
+ type Error;
+ fn try_into(self) -> Result<T, Self::Error>;
+ }
+
+ impl<T, U> TryInto<U> for T
+ where
+ U: TryFrom<T>,
+ {
+ type Error = U::Error;
+ fn try_into(self) -> Result<U, U::Error> {
+ U::try_from(self)
+ }
+ }
// endregion:from
// region:as_ref
@@ -1510,7 +1529,7 @@ pub mod iter {
impl<T, const N: usize> IntoIterator for [T; N] {
type Item = T;
type IntoIter = IntoIter<T, N>;
- fn into_iter(self) -> I {
+ fn into_iter(self) -> Self::IntoIter {
IntoIter { data: self, range: IndexRange { start: 0, end: loop {} } }
}
}
@@ -1520,6 +1539,29 @@ pub mod iter {
loop {}
}
}
+ pub struct Iter<'a, T> {
+ slice: &'a [T],
+ }
+ impl<'a, T> IntoIterator for &'a [T; N] {
+ type Item = &'a T;
+ type IntoIter = Iter<'a, T>;
+ fn into_iter(self) -> Self::IntoIter {
+ loop {}
+ }
+ }
+ impl<'a, T> IntoIterator for &'a [T] {
+ type Item = &'a T;
+ type IntoIter = Iter<'a, T>;
+ fn into_iter(self) -> Self::IntoIter {
+ loop {}
+ }
+ }
+ impl<'a, T> Iterator for Iter<'a, T> {
+ type Item = &'a T;
+ fn next(&mut self) -> Option<T> {
+ loop {}
+ }
+ }
}
pub use self::collect::IntoIterator;
}
@@ -1532,6 +1574,15 @@ pub mod str {
pub const unsafe fn from_utf8_unchecked(v: &[u8]) -> &str {
""
}
+ pub trait FromStr: Sized {
+ type Err;
+ fn from_str(s: &str) -> Result<Self, Self::Err>;
+ }
+ impl str {
+ pub fn parse<F: FromStr>(&self) -> Result<F, F::Err> {
+ FromStr::from_str(self)
+ }
+ }
}
// endregion:str
@@ -1791,7 +1842,7 @@ pub mod prelude {
cmp::{Eq, PartialEq}, // :eq
cmp::{Ord, PartialOrd}, // :ord
convert::AsRef, // :as_ref
- convert::{From, Into}, // :from
+ convert::{From, Into, TryFrom, TryInto}, // :from
default::Default, // :default
iter::{IntoIterator, Iterator}, // :iterator
macros::builtin::{derive, derive_const}, // :derive
@@ -1806,6 +1857,7 @@ pub mod prelude {
option::Option::{self, None, Some}, // :option
panic, // :panic
result::Result::{self, Err, Ok}, // :result
+ str::FromStr, // :str
};
}