pub struct Tagged<T> { /* private fields */ }Expand description
A wrapper around any value of type T and its Tag.
use figment::{Figment, value::magic::Tagged, Jail};
use figment::providers::{Format, Toml};
#[derive(Debug, PartialEq, serde::Deserialize)]
struct Config {
number: Tagged<usize>,
}
Jail::expect_with(|jail| {
jail.create_file("Config.toml", r#"number = 10"#)?;
let figment = Figment::from(Toml::file("Config.toml"));
let c: Config = figment.extract()?;
assert_eq!(*c.number, 10);
let tag = c.number.tag();
let metadata = figment.get_metadata(tag).expect("number has tag");
assert!(!tag.is_default());
assert_eq!(metadata.name, "TOML file");
Ok(())
});Implementations§
source§impl<T> Tagged<T>
impl<T> Tagged<T>
sourcepub fn tag(&self) -> Tag
pub fn tag(&self) -> Tag
Returns the tag of the inner value if it is known. As long self is a
leaf and was extracted from a Figment, the returned
value is expected to be Some.
§Example
use figment::{Figment, Profile, value::magic::Tagged};
let figment = Figment::from(("key", "value"));
let tagged = figment.extract_inner::<Tagged<String>>("key").unwrap();
assert!(!tagged.tag().is_default());
assert_eq!(tagged.tag().profile(), Some(Profile::Global));sourcepub fn into_inner(self) -> T
pub fn into_inner(self) -> T
Consumes self and returns the inner value.
§Example
use figment::{Figment, value::magic::Tagged};
let tagged = Figment::from(("key", "value"))
.extract_inner::<Tagged<String>>("key")
.unwrap();
let value = tagged.into_inner();
assert_eq!(value, "value");Trait Implementations§
source§impl<'de, T> Deserialize<'de> for Tagged<T>where
T: Deserialize<'de>,
impl<'de, T> Deserialize<'de> for Tagged<T>where
T: Deserialize<'de>,
source§fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where
__D: Deserializer<'de>,
source§impl<T: PartialEq> PartialEq for Tagged<T>
impl<T: PartialEq> PartialEq for Tagged<T>
impl<T: for<'de> Deserialize<'de>> Magic for Tagged<T>
Auto Trait Implementations§
impl<T> Freeze for Tagged<T>where
T: Freeze,
impl<T> RefUnwindSafe for Tagged<T>where
T: RefUnwindSafe,
impl<T> Send for Tagged<T>where
T: Send,
impl<T> Sync for Tagged<T>where
T: Sync,
impl<T> Unpin for Tagged<T>where
T: Unpin,
impl<T> UnwindSafe for Tagged<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
source§impl<T> Paint for Twhere
T: ?Sized,
impl<T> Paint for Twhere
T: ?Sized,
source§fn fg(&self, value: Color) -> Painted<&T>
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Returns a styled value derived from self with the foreground set to
value.
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Set foreground color to white using fg():
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fn bright_black(&self) -> Painted<&T>
Returns self with the
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§Example
println!("{}", value.bright_black());source§fn bright_red(&self) -> Painted<&T>
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