# log::LevelFilter - Rust
API documentation for the Rust `LevelFilter` enum in crate `log`.
Keywords: rust, rustlang, rust-lang, LevelFilter

# [−] [src] Enum log::LevelFilter

    #[repr(usize)]pub enum LevelFilter {
        Off,
        Error,
        Warn,
        Info,
        Debug,
        Trace,
    }

An enum representing the available verbosity level filters of the logger.

A `LevelFilter` may be compared directly to a `Level`. Use this type to get and set the maximum log level with `max_level()` and `set_max_level`.

## Variants

`Off`

A level lower than all log levels.

`Error`

Corresponds to the `Error` log level.

`Warn`

Corresponds to the `Warn` log level.

`Info`

Corresponds to the `Info` log level.

`Debug`

Corresponds to the `Debug` log level.

`Trace`

Corresponds to the `Trace` log level.

## Implementations

### `impl LevelFilter` [src]

#### `pub fn max() -> LevelFilter` [src]

Returns the most verbose logging level filter.

#### `pub fn to_level(&self) -> Option<Level>` [src]

Converts `self` to the equivalent `Level`.

Returns `None` if `self` is `LevelFilter::Off`.

#### `pub fn as_str(&self) -> &'static str` [src]

Returns the string representation of the `LevelFilter`.

This returns the same string as the `fmt::Display` implementation.

## Trait Implementations

### `impl Clone for LevelFilter` [src]

#### `fn clone(&self) -> LevelFilter` [src]

Returns a copy of the value. Read more

#### `pub fn clone_from(&mut self, source: &Self)`1.0.0 [src]

Performs copy-assignment from `source`. Read more

### `impl Copy for LevelFilter` [src]

### `impl Debug for LevelFilter` [src]

#### `fn fmt(&self, f: &mut Formatter<'_>) -> Result` [src]

Formats the value using the given formatter. Read more

### `impl Display for LevelFilter` [src]

#### `fn fmt(&self, fmt: &mut Formatter<'_>) -> Result` [src]

Formats the value using the given formatter. Read more

### `impl Eq for LevelFilter` [src]

### `impl FromStr for LevelFilter` [src]

#### `type Err = ParseLevelError`

The associated error which can be returned from parsing.

#### `fn from_str(level: &str) -> Result<LevelFilter, Self::Err>` [src]

Parses a string `s` to return a value of this type. Read more

### `impl Hash for LevelFilter` [src]

#### `fn hash<__H: Hasher>(&self, state: &mut __H)` [src]

Feeds this value into the given `Hasher`. Read more

#### `pub fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,` 1.3.0 [src]

Feeds a slice of this type into the given `Hasher`. Read more

### `impl Ord for LevelFilter` [src]

#### `fn cmp(&self, other: &LevelFilter) -> Ordering` [src]

This method returns an `Ordering` between `self` and `other`. Read more

#### `#[must_use]pub fn max(self, other: Self) -> Self` 1.21.0 [src]

Compares and returns the maximum of two values. Read more

#### `#[must_use]pub fn min(self, other: Self) -> Self` 1.21.0 [src]

Compares and returns the minimum of two values. Read more

#### `#[must_use]pub fn clamp(self, min: Self, max: Self) -> Self` 1.50.0 [src]

Restrict a value to a certain interval. Read more

### `impl PartialEq<Level> for LevelFilter` [src]

#### `fn eq(&self, other: &Level) -> bool` [src]

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool` 1.0.0 [src]

This method tests for `!=`.

### `impl PartialEq<LevelFilter> for Level` [src]

#### `fn eq(&self, other: &LevelFilter) -> bool` [src]

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool` 1.0.0 [src]

This method tests for `!=`.

### `impl PartialEq<LevelFilter> for LevelFilter` [src]

#### `fn eq(&self, other: &LevelFilter) -> bool` [src]

This method tests for `self` and `other` values to be equal, and is used by `==`. Read more

#### `#[must_use]pub fn ne(&self, other: &Rhs) -> bool` 1.0.0 [src]

This method tests for `!=`.

### `impl PartialOrd<Level> for LevelFilter` [src]

#### `fn partial_cmp(&self, other: &Level) -> Option<Ordering>` [src]

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &Level) -> bool` [src]

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &Level) -> bool` [src]

This method tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more

#### `fn gt(&self, other: &Level) -> bool` [src]

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &Level) -> bool` [src]

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl PartialOrd<LevelFilter> for Level` [src]

#### `fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>` [src]

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &LevelFilter) -> bool` [src]

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &LevelFilter) -> bool` [src]

This method tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more

#### `fn gt(&self, other: &LevelFilter) -> bool` [src]

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &LevelFilter) -> bool` [src]

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl PartialOrd<LevelFilter> for LevelFilter` [src]

#### `fn partial_cmp(&self, other: &LevelFilter) -> Option<Ordering>` [src]

This method returns an ordering between `self` and `other` values if one exists. Read more

#### `fn lt(&self, other: &LevelFilter) -> bool` [src]

This method tests less than (for `self` and `other`) and is used by the `<` operator. Read more

#### `fn le(&self, other: &LevelFilter) -> bool` [src]

This method tests less than or equal to (for `self` and `other`) and is used by the `<=` operator. Read more

#### `fn gt(&self, other: &LevelFilter) -> bool` [src]

This method tests greater than (for `self` and `other`) and is used by the `>` operator. Read more

#### `fn ge(&self, other: &LevelFilter) -> bool` [src]

This method tests greater than or equal to (for `self` and `other`) and is used by the `>=` operator. Read more

### `impl StructuralEq for LevelFilter` [src]

## Auto Trait Implementations

### `impl Send for LevelFilter` [src]

### `impl Sync for LevelFilter` [src]

### `impl Unpin for LevelFilter` [src]

## Blanket Implementations

### `impl<T> Any for T where
T: 'static + ?Sized,` [src]

#### `pub fn type_id(&self) -> TypeId` [src]

Gets the `TypeId` of `self`. Read more

### `impl<T> Borrow<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow(&self) -> &T` [src]

Immutably borrows from an owned value. Read more

### `impl<T> BorrowMut<T> for T where
T: ?Sized,` [src]

#### `pub fn borrow_mut(&mut self) -> &mut T` [src]

Mutably borrows from an owned value. Read more

### `impl<T> From<T> for T` [src]

#### `pub fn from(t: T) -> T` [src]

Performs the conversion.

### `impl<T, U> Into<U> for T where
U: From<T>,` [src]

#### `pub fn into(self) -> U` [src]

Performs the conversion.

### `impl<T, U> TryFrom<U> for T where
U: Into<T>,` [src]

#### `type Error = Infallible`

The type returned in the event of a conversion error.

#### `pub fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>` [src]

Performs the conversion.

### `impl<T, U> TryInto<U> for T where
U: TryFrom<T>,` [src]

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

The type returned in the event of a conversion error.

#### `pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>` [src]

Performs the conversion.