Struct env_logger::fmt::writer::Builder

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pub(crate) struct Builder {
    target: Target,
    write_style: WriteStyle,
    is_test: bool,
    built: bool,
}
Expand description

A builder for a terminal writer.

The target and style choice can be configured before building.

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§target: Target§write_style: WriteStyle§is_test: bool§built: bool

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impl Builder

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pub(crate) fn new() -> Self

Initialize the writer builder with defaults.

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pub(crate) fn target(&mut self, target: Target) -> &mut Self

Set the target to write to.

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pub(crate) fn parse_write_style(&mut self, write_style: &str) -> &mut Self

Parses a style choice string.

See the Disabling colors section for more details.

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pub(crate) fn write_style(&mut self, write_style: WriteStyle) -> &mut Self

Whether or not to print style characters when writing.

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pub(crate) fn is_test(&mut self, is_test: bool) -> &mut Self

Whether or not to capture logs for cargo test.

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pub(crate) fn build(&mut self) -> Writer

Build a terminal writer.

Trait Implementations§

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impl Debug for Builder

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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 Default for Builder

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fn default() -> Self

Returns the “default value” for a type. Read more

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.