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DisplayOnly

Struct DisplayOnly 

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pub struct DisplayOnly<T> { /* private fields */ }
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The marker for a manifest field whose value PROVABLY reaches no verdict (F79, ADR-0007 Option A).

Strictness in this file is proportional to consequence. An unknown KEY may be a gate rule being silently ignored, so it rejects (ADR-0001). An unknown value in a field that only feeds disclosure text costs one NOTE line, and charging it the whole-manifest price took every verb down together — in the fail-open direction (F71). So: a field wrapped in this type degrades an unrecognized string to T::default() and keeps the raw text, so the value carries its own provenance to wherever it is rendered. A value of the wrong TOML type is a malformed manifest, not a typo, and still rejects.

The leniency is a property of the type, not of a reviewer’s per-field call: crates/pushkin-core/tests/manifest_display_only.rs scans this file and asserts the marker sits on exactly one field. Wrapping another field changes that list, which is what makes it a reviewed act rather than a silent widening — Option C of the record (every unknown value warns) is the N13-forbidden shape, and this guard is what keeps A from drifting into it.

Compares equal to the value it carries, so call sites and committed suites that compare against the plain enum keep reading naturally. A degradation is never silent: the consumer that renders the field owns the disclosure.

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impl<T> DisplayOnly<T>

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pub fn value(&self) -> &T

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pub fn degraded_from(&self) -> Option<&str>

The raw text the parser did not recognize, when the value degraded.

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impl<T: Clone> Clone for DisplayOnly<T>

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

Returns a duplicate 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> Debug for DisplayOnly<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<'de, T: DeserializeOwned + Default> Deserialize<'de> for DisplayOnly<T>

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fn deserialize<D: Deserializer<'de>>(deserializer: D) -> Result<Self, D::Error>

Deserialize this value from the given Serde deserializer. Read more
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impl<T: Eq> Eq for DisplayOnly<T>

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impl<T: PartialEq> PartialEq for DisplayOnly<T>

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

Equality operator ==. Read more
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fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl<T: PartialEq> PartialEq<T> for DisplayOnly<T>

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

Equality operator ==. Read more
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fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl<T: PartialEq> StructuralPartialEq for DisplayOnly<T>

Auto Trait Implementations§

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impl<T> Freeze for DisplayOnly<T>
where T: Freeze,

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

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

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

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

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impl<T> UnsafeUnpin for DisplayOnly<T>
where T: UnsafeUnpin,

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

Blanket Implementations§

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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> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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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> 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.