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Envelope

Struct Envelope 

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pub struct Envelope<T: Serialize> {
    pub schema_version: String,
    pub ok: bool,
    pub data: Option<T>,
    pub warnings: Vec<String>,
    pub error: Option<EnvelopeError>,
}
Expand description

Envelope shared by every JSON-emitting subcommand.

The shape is intentionally narrow: schema_version pins the wire contract, ok is a boolean success flag, data carries the per-subcommand payload, warnings collects non-fatal diagnostics (so JSON consumers see what text mode would print to stderr), and error carries a structured failure.

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§schema_version: String§ok: bool§data: Option<T>§warnings: Vec<String>§error: Option<EnvelopeError>

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impl<T: Serialize> Envelope<T>

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pub fn success(schema_version: impl Into<String>, data: T) -> Self

Build a successful envelope.

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pub fn failure(schema_version: impl Into<String>, error: EnvelopeError) -> Self

Build a failure envelope with no payload.

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pub fn with_warning(self, warning: impl Into<String>) -> Self

Append a single warning to the envelope.

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pub fn with_warnings<I, S>(self, warnings: I) -> Self
where I: IntoIterator<Item = S>, S: Into<String>,

Append multiple warnings to the envelope.

Trait Implementations§

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impl<T: Clone + Serialize> Clone for Envelope<T>

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

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl<T: Debug + Serialize> Debug for Envelope<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> Serialize for Envelope<T>
where T: Serialize + 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

Auto Trait Implementations§

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

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

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

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

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

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

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impl<T> UnwindSafe for Envelope<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> 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.