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Candidate

Struct Candidate 

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pub struct Candidate { /* private fields */ }
Expand description

A discovered location for a binary, with the observed PathTags that describe it.

Fields are private; use the accessors (path, canonical, tags, durability, is_stable). This hides the internal Vec<PathTag> representation so it can change without breaking the public API.

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impl Candidate

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pub fn path(&self) -> &Path

The path of this candidate as discovered (input, PATH entry, symlink target, etc.). Not necessarily canonicalized.

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pub fn canonical(&self) -> &Path

The canonical path of this candidate.

When std::fs::canonicalize succeeds this is the real (symlink- and ..-resolved) path. When it fails, it falls back to the candidate’s own path, so this is not guaranteed to always be a realpath.

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pub fn tags(&self) -> &[PathTag]

The observed tags describing this candidate.

Tag order is not guaranteed (PathTag::Input / PathTag::InPathEnv happen to lead, but other tags follow in implementation order). Test membership with tags().contains(...) / tags().iter().any(...), not by position.

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pub fn durability(&self) -> Durability

The Durability of this candidate’s path: whether the path string can be pinned into a service definition and survive rebuild / upgrade / reboot.

Judged per candidate, so the reference path and the canonical path of the same binary can differ (e.g. /opt/homebrew/bin/git is Durable while /opt/homebrew/Cellar/git/2.44.0/bin/git is NotDurable). See Durability for the judging model and its known limitations.

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pub fn is_stable(&self) -> bool

Whether this candidate is durable-to-pin: true iff durability is Durability::Durable.

Durability::Unknown is treated as not stable (safe side).

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impl Clone for Candidate

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fn clone(&self) -> Candidate

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for Candidate

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.