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Output

Enum Output 

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#[non_exhaustive]
pub enum Output<T: Serialize> { Render(T), Silent, Binary { data: Vec<u8>, filename: String, }, Artifact(Artifact<T>), }
Expand description

What a handler produces.

This enum represents the different types of output a command handler can produce.

§Binary vs. Artifact

Output::Binary hands bytes and a filename hint back to the caller: the framework writes them to stdout, or to an explicit --output-file-path override, and the filename never authorizes a filesystem write on its own.

Output::Artifact is the opt-in compound shape: bytes plus an optional suggested destination that does authorize a write, plus an application-owned semantic report the framework renders only after the write succeeds. See the artifact module for the destination policy and report channel.

Marked #[non_exhaustive] so future output shapes can be added without breaking exhaustive matchers.

Variants (Non-exhaustive)§

This enum is marked as non-exhaustive
Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.
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Render(T)

Data to render with a template or serialize to JSON/YAML/etc.

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Silent

Silent exit (no output produced)

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Binary

Binary output for file exports

Fields

§data: Vec<u8>

The binary data

§filename: String

Suggested filename for the output

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Artifact(Artifact<T>)

Owned artifact bytes with an optional suggested destination and an application-owned report rendered after the framework-owned write.

Implementations§

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impl<T: Serialize> Output<T>

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pub fn is_render(&self) -> bool

Returns true if this is a render result.

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pub fn is_silent(&self) -> bool

Returns true if this is a silent result.

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pub fn is_binary(&self) -> bool

Returns true if this is a binary result.

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pub fn is_artifact(&self) -> bool

Returns true if this is a compound artifact result.

Trait Implementations§

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impl<T: Debug + Serialize> Debug for Output<T>

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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

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

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

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

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

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

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impl<T> UnwindSafe for Output<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> 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, 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.