pub struct RecordBuilder<'a> { /* private fields */ }
Expand description

Builder for Record.

Typically should only be used by log library creators or for testing and “shim loggers”. The RecordBuilder can set the different parameters of Record object, and returns the created object when build is called.

Examples

use log::{Level, Record};

let record = Record::builder()
                .args(format_args!("Error!"))
                .level(Level::Error)
                .target("myApp")
                .file(Some("server.rs"))
                .line(Some(144))
                .module_path(Some("server"))
                .build();

Alternatively, use MetadataBuilder:

use log::{Record, Level, MetadataBuilder};

let error_metadata = MetadataBuilder::new()
                        .target("myApp")
                        .level(Level::Error)
                        .build();

let record = Record::builder()
                .metadata(error_metadata)
                .args(format_args!("Error!"))
                .line(Some(433))
                .file(Some("app.rs"))
                .module_path(Some("server"))
                .build();

Implementations§

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impl<'a> RecordBuilder<'a>

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pub fn new() -> RecordBuilder<'a>

Construct new RecordBuilder.

The default options are:

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pub fn args(&mut self, args: Arguments<'a>) -> &mut RecordBuilder<'a>

Set args.

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pub fn metadata(&mut self, metadata: Metadata<'a>) -> &mut RecordBuilder<'a>

Set metadata. Construct a Metadata object with MetadataBuilder.

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pub fn level(&mut self, level: Level) -> &mut RecordBuilder<'a>

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pub fn target(&mut self, target: &'a str) -> &mut RecordBuilder<'a>

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pub fn module_path(&mut self, path: Option<&'a str>) -> &mut RecordBuilder<'a>

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pub fn module_path_static( &mut self, path: Option<&'static str> ) -> &mut RecordBuilder<'a>

Set module_path to a 'static string

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pub fn file(&mut self, file: Option<&'a str>) -> &mut RecordBuilder<'a>

Set file

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pub fn file_static( &mut self, file: Option<&'static str> ) -> &mut RecordBuilder<'a>

Set file to a 'static string.

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pub fn line(&mut self, line: Option<u32>) -> &mut RecordBuilder<'a>

Set line

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pub fn build(&self) -> Record<'a>

Invoke the builder and return a Record

Trait Implementations§

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impl<'a> Debug for RecordBuilder<'a>

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

Formats the value using the given formatter. Read more
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impl<'a> Default for RecordBuilder<'a>

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fn default() -> RecordBuilder<'a>

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

Auto Trait Implementations§

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impl<'a> !RefUnwindSafe for RecordBuilder<'a>

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impl<'a> !Send for RecordBuilder<'a>

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impl<'a> !Sync for RecordBuilder<'a>

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impl<'a> Unpin for RecordBuilder<'a>

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impl<'a> !UnwindSafe for RecordBuilder<'a>

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> Downcast<T> for T

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fn downcast(&self) -> &T

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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<S> FromSample<S> for S

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fn from_sample_(s: S) -> S

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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<F, T> IntoSample<T> for Fwhere T: FromSample<F>,

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fn into_sample(self) -> T

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impl<T> Pointable for T

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const ALIGN: usize = _

The alignment of pointer.
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type Init = T

The type for initializers.
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unsafe fn init(init: <T as Pointable>::Init) -> usize

Initializes a with the given initializer. Read more
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unsafe fn deref<'a>(ptr: usize) -> &'a T

Dereferences the given pointer. Read more
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unsafe fn deref_mut<'a>(ptr: usize) -> &'a mut T

Mutably dereferences the given pointer. Read more
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unsafe fn drop(ptr: usize)

Drops the object pointed to by the given pointer. Read more
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impl<T, U> ToSample<U> for Twhere U: FromSample<T>,

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fn to_sample_(self) -> U

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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.
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impl<T> Upcast<T> for T

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fn upcast(&self) -> Option<&T>

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impl<V, T> VZip<V> for Twhere V: MultiLane<T>,

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fn vzip(self) -> V

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impl<T> Any for Twhere T: Any,

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impl<S, T> Duplex<S> for Twhere T: FromSample<S> + ToSample<S>,