pub struct Secret<T> {
    inner: T,
}
Expand description

A wrapper for values that should not be printed.

This type does not implement Display, and has a Debug impl that hides the contained value.

let token = Secret::from("super secret string");
assert_eq!(format!("{:?}", token), "Secret { inner: \"REDACTED\" }");

Currently, we write a borrowed Secret<T> as Secret<&T>. The as_deref and to_owned methods can be used to convert back and forth between Secret<String> and Secret<&str>.

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§inner: T

Implementations§

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impl<T> Secret<T>

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pub fn expose(self) -> T

Unwraps the contained value.

Use of this method marks the boundary of where the contained value is hidden.

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pub fn as_deref(&self) -> Secret<&<T as Deref>::Target>where T: Deref,

Converts a Secret<T> to a Secret<&T::Target>.

let owned: Secret<String> = Secret::from(String::from("token"));
let borrowed: Secret<&str> = owned.as_deref();
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pub fn as_ref(&self) -> Secret<&T>

Converts a Secret<T> to a Secret<&T>.

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pub fn map<U, F>(self, f: F) -> Secret<U>where F: FnOnce(T) -> U,

Converts a Secret<T> to a Secret<U> by applying f to the contained value.

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impl<T: ToOwned + ?Sized> Secret<&T>

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pub fn to_owned(&self) -> Secret<<T as ToOwned>::Owned>

Converts a Secret containing a borrowed type to a Secret containing the corresponding owned type.

let borrowed: Secret<&str> = Secret::from("token");
let owned: Secret<String> = borrowed.to_owned();
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impl<T, E> Secret<Result<T, E>>

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pub fn transpose(self) -> Result<Secret<T>, E>

Converts a Secret<Result<T, E>> to a Result<Secret<T>, E>.

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impl<T: AsRef<str>> Secret<T>

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pub fn is_empty(&self) -> bool

Checks if the contained value is empty.

Trait Implementations§

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impl<T: Clone> Clone for Secret<T>

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fn clone(&self) -> Secret<T>

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl<T> Debug for Secret<T>

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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<T: Default> Default for Secret<T>

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fn default() -> Secret<T>

Returns the “default value” for a type. Read more
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impl<'de, T> Deserialize<'de> for Secret<T>where T: Deserialize<'de>,

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl<T> From<T> for Secret<T>

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fn from(inner: T) -> Self

Converts to this type from the input type.
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impl<T: PartialEq> PartialEq<Secret<T>> for Secret<T>

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fn eq(&self, other: &Secret<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<T> Serialize for Secret<T>where T: Serialize,

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl<T: Eq> Eq for Secret<T>

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impl<T> StructuralEq for Secret<T>

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impl<T> StructuralPartialEq for Secret<T>

Auto Trait Implementations§

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impl<T> RefUnwindSafe for Secret<T>where T: RefUnwindSafe,

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impl<T> Send for Secret<T>where T: Send,

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impl<T> Sync for Secret<T>where T: Sync,

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impl<T> Unpin for Secret<T>where T: Unpin,

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impl<T> UnwindSafe for Secret<T>where T: UnwindSafe,

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<!> for T

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fn from(t: !) -> T

Converts to this type from the input type.
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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> ToOwned for Twhere 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 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> DeserializeOwned for Twhere T: for<'de> Deserialize<'de>,

Layout§

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.