Enum jobserver::FromEnvErrorKind

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#[non_exhaustive]
pub enum FromEnvErrorKind { NoEnvVar, NoJobserver, CannotParse, CannotOpenPath, CannotOpenFd, NegativeFd, NotAPipe, Unsupported, }
Expand description

Kind of an error returned from Client::from_env_ext function.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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NoEnvVar

There is no environment variable that describes jobserver to inherit.

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NoJobserver

There is no jobserver in the environment variable. Variables associated with Make can be used for passing data other than jobserver info.

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CannotParse

Cannot parse jobserver environment variable value, incorrect format.

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CannotOpenPath

Cannot open path or name from the jobserver environment variable value.

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CannotOpenFd

Cannot open file descriptor from the jobserver environment variable value.

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NegativeFd

The jobserver style is a simple pipe, but at least one of the file descriptors is negative, which means it is disabled for this process (GNU make manual: POSIX Jobserver Interaction).

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NotAPipe

File descriptor from the jobserver environment variable value is not a pipe.

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Unsupported

Jobserver inheritance is not supported on this platform.

Trait Implementations§

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impl Debug for FromEnvErrorKind

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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.