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
sourceimpl<'a> RecordBuilder<'a>
impl<'a> RecordBuilder<'a>
sourcepub fn new() -> RecordBuilder<'a>
pub fn new() -> RecordBuilder<'a>
Construct new RecordBuilder
.
The default options are:
args
:format_args!("")
metadata
:Metadata::builder().build()
module_path
:None
file
:None
line
:None
sourcepub fn args(&mut self, args: Arguments<'a>) -> &mut RecordBuilder<'a>
pub fn args(&mut self, args: Arguments<'a>) -> &mut RecordBuilder<'a>
Set args
.
sourcepub fn metadata(&mut self, metadata: Metadata<'a>) -> &mut RecordBuilder<'a>
pub fn metadata(&mut self, metadata: Metadata<'a>) -> &mut RecordBuilder<'a>
Set metadata
. Construct a Metadata
object with MetadataBuilder
.
sourcepub fn level(&mut self, level: Level) -> &mut RecordBuilder<'a>
pub fn level(&mut self, level: Level) -> &mut RecordBuilder<'a>
Set Metadata::level
.
sourcepub fn target(&mut self, target: &'a str) -> &mut RecordBuilder<'a>
pub fn target(&mut self, target: &'a str) -> &mut RecordBuilder<'a>
Set Metadata::target
sourcepub fn module_path(&mut self, path: Option<&'a str>) -> &mut RecordBuilder<'a>
pub fn module_path(&mut self, path: Option<&'a str>) -> &mut RecordBuilder<'a>
Set module_path
sourcepub fn module_path_static(
&mut self,
path: Option<&'static str>
) -> &mut RecordBuilder<'a>
pub fn module_path_static(
&mut self,
path: Option<&'static str>
) -> &mut RecordBuilder<'a>
Set module_path
to a 'static
string
sourcepub fn file_static(
&mut self,
file: Option<&'static str>
) -> &mut RecordBuilder<'a>
pub fn file_static(
&mut self,
file: Option<&'static str>
) -> &mut RecordBuilder<'a>
Set file
to a 'static
string.
Trait Implementations
Auto Trait Implementations
impl<'a> !RefUnwindSafe for RecordBuilder<'a>
impl<'a> !Send for RecordBuilder<'a>
impl<'a> !Sync for RecordBuilder<'a>
impl<'a> Unpin for RecordBuilder<'a>
impl<'a> !UnwindSafe for RecordBuilder<'a>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
sourcefn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<W, Global>impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
fn into_any(self: Box<T, Global>) -> Box<dyn Any + 'static, Global>ⓘNotable traits for Box<W, Global>impl<W> Write for Box<W, Global> where
W: Write + ?Sized, impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
W: Write + ?Sized, impl<R> Read for Box<R, Global> where
R: Read + ?Sized, impl<I, A> Iterator for Box<I, A> where
I: Iterator + ?Sized,
A: Allocator, type Item = <I as Iterator>::Item;
Convert Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read more
sourcefn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
sourcefn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
sourcefn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert &mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read more
sourceimpl<A> DynCastExt for A
impl<A> DynCastExt for A
sourcefn dyn_cast<T>(
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
A: DynCastExtHelper<T>,
T: ?Sized,
fn dyn_cast<T>(
self
) -> Result<<A as DynCastExtHelper<T>>::Target, <A as DynCastExtHelper<T>>::Source> where
A: DynCastExtHelper<T>,
T: ?Sized,
Use this to cast from one trait object type to another. Read more
sourcefn dyn_upcast<T>(self) -> <A as DynCastExtAdvHelper<T, T>>::Target where
A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
T: ?Sized,
fn dyn_upcast<T>(self) -> <A as DynCastExtAdvHelper<T, T>>::Target where
A: DynCastExtAdvHelper<T, T, Source = <A as DynCastExtAdvHelper<T, T>>::Target>,
T: ?Sized,
Use this to upcast a trait to one of its supertraits. Read more
sourcefn dyn_cast_adv<F, T>(
self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
A: DynCastExtAdvHelper<F, T>,
F: ?Sized,
T: ?Sized,
fn dyn_cast_adv<F, T>(
self
) -> Result<<A as DynCastExtAdvHelper<F, T>>::Target, <A as DynCastExtAdvHelper<F, T>>::Source> where
A: DynCastExtAdvHelper<F, T>,
F: ?Sized,
T: ?Sized,
sourcefn dyn_cast_with_config<C>(
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
C: DynCastConfig,
A: DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>,
fn dyn_cast_with_config<C>(
self
) -> Result<<A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Target, <A as DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>>::Source> where
C: DynCastConfig,
A: DynCastExtAdvHelper<<C as DynCastConfig>::Source, <C as DynCastConfig>::Target>,
Use this to cast from one trait object type to another. With this method the type parameter is a config type that uniquely specifies which cast should be preformed. Read more