env_filter

Struct FilteredLog

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pub struct FilteredLog<T> { /* private fields */ }
Expand description

Decorate a log::Log with record Filtering.

Records that match the filter will be forwarded to the wrapped log. Other records will be ignored.

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impl<T: Log> FilteredLog<T>

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pub fn new(log: T, filter: Filter) -> Self

Create a new filtered log.

Trait Implementations§

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impl<T: Debug> Debug for FilteredLog<T>

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

Formats the value using the given formatter. Read more
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impl<T: Log> Log for FilteredLog<T>

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fn enabled(&self, metadata: &Metadata<'_>) -> bool

Determines if a log message with the specified metadata would be logged.

For the wrapped log, this returns true only if both the filter and the wrapped log return true.

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fn log(&self, record: &Record<'_>)

Logs the record.

Forwards the record to the wrapped log, but only if the record matches the filter.

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fn flush(&self)

Flushes any buffered records.

Forwards directly to the wrapped log.

Auto Trait Implementations§

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impl<T> Freeze for FilteredLog<T>
where T: Freeze,

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impl<T> RefUnwindSafe for FilteredLog<T>
where T: RefUnwindSafe,

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impl<T> Send for FilteredLog<T>
where T: Send,

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impl<T> Sync for FilteredLog<T>
where T: Sync,

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impl<T> Unpin for FilteredLog<T>
where T: Unpin,

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impl<T> UnwindSafe for FilteredLog<T>
where T: UnwindSafe,

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.