Struct home::env::OsEnv

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pub struct OsEnv;
Expand description

Implements Env for the OS context, both Unix style and Windows.

This is trait permits in-process testing by providing a control point to allow in-process divergence on what is normally process wide state.

Implementations should be provided by whatever testing framework the caller is using. Code that is not performing in-process threaded testing requiring isolated rustup/cargo directories does not need this trait or the _from functions.

Trait Implementations§

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impl Env for OsEnv

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fn home_dir(&self) -> Option<PathBuf>

Return the path to the users home dir, or None if any error occurs: see home_inner.
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fn current_dir(&self) -> Result<PathBuf>

Return the current working directory.
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fn var_os(&self, key: &str) -> Option<OsString>

Get an environment variable, as per std::env::var_os.

Auto Trait Implementations§

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impl RefUnwindSafe for OsEnv

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impl Send for OsEnv

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impl Sync for OsEnv

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impl Unpin for OsEnv

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impl UnwindSafe for OsEnv

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> 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, 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.