Struct RuntimePattern

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pub struct RuntimePattern(/* private fields */);
Available on crate feature runtime-pattern only.
Expand description

Runtime pattern built via runtime_pattern! macro.

§Basic Usage

use spdlog::info;

let formatter = PatternFormatter::new(runtime_pattern!("[{level}] {payload}{eol}")?);

info!(logger: doctest, "Interesting log message");
/* Output */ "[info] Interesting log message\n"

§With Custom Patterns

use std::fmt::Write;

use spdlog::{
    formatter::{pattern, Pattern, PatternContext, PatternFormatter, runtime_pattern, RuntimePattern},
    Record, StringBuf, info
};
 
#[derive(Default, Clone)]
struct MyPattern;
 
impl Pattern for MyPattern {
   fn format(&self, record: &Record, dest: &mut StringBuf, _: &mut PatternContext) -> spdlog::Result<()> {
       write!(dest, "My own pattern").map_err(spdlog::Error::FormatRecord)
   }
}

let template = "[{level}] {payload} - {$mypat1} {$mypat2}{eol}";
fn pat() -> impl Pattern { pattern!("[{level_short}-{level}]") }
let formatter = PatternFormatter::new(
    runtime_pattern!(
        template,
        {$mypat1} => MyPattern::default,
        {$mypat2} => pat
    )?
);

info!(logger: doctest, "Interesting log message");
/* Output */ "[info] Interesting log message - My own pattern [I-info]\n"

Trait Implementations§

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impl Clone for RuntimePattern

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fn clone(&self) -> RuntimePattern

Returns a copy of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Pattern for RuntimePattern

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fn format( &self, record: &Record<'_>, dest: &mut StringBuf, ctx: &mut PatternContext<'_, '_>, ) -> Result<()>

Format this pattern against the given log record and write the formatted message into the output buffer. Read more

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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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> 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> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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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.