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FlagSnapshot

Struct FlagSnapshot 

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pub struct FlagSnapshot {
Show 16 fields pub short: Option<char>, pub long: Option<String>, pub value_name: Option<String>, pub value_kind: ValueKind, pub choices: Vec<String>, pub repeatable: bool, pub required: bool, pub negatable: bool, pub hidden: bool, pub deprecated: Option<String>, pub inherited: bool, pub group: Option<String>, pub description: Option<String>, pub default: Option<String>, pub env_var: Option<String>, pub provenance: ProvenanceSnapshot,
}
Expand description

Snapshot form of Flag. Field order matches Flag’s own declaration; every Option/Vec field is omitted when empty, every bool field is omitted when false.

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§short: Option<char>

Short spelling, e.g. 'i' for -i.

§long: Option<String>

Long spelling, e.g. "interactive" for --interactive.

§value_name: Option<String>

The value placeholder, e.g. "FILE" in --output FILE.

§value_kind: ValueKind

Whether this flag takes no value, a required value, or an optional one. Omitted for the common no-value case.

§choices: Vec<String>

Enumerated choices, e.g. {json|yaml|table} for --format.

§repeatable: bool

True if this flag may be given more than once.

§required: bool

True if this flag is required.

§negatable: bool

True if the tool documents this boolean’s negation inline (--[no-]foo). long holds the base name either way.

§hidden: bool

True if this flag should be hidden by default.

§deprecated: Option<String>

The deprecation reason, when deprecated.

§inherited: bool

True when inherited from an ancestor node.

§group: Option<String>

Display grouping from the source, e.g. tar’s “Main operation mode”.

§description: Option<String>

The flag’s description.

§default: Option<String>

The flag’s default value, if documented.

§env_var: Option<String>

An environment variable that also sets this flag, if documented.

§provenance: ProvenanceSnapshot

Which source(s) contributed this flag’s fields.

Trait Implementations§

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impl Clone for FlagSnapshot

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fn clone(&self) -> FlagSnapshot

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 Debug for FlagSnapshot

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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 From<&Flag> for FlagSnapshot

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fn from(f: &Flag) -> Self

Converts to this type from the input type.
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impl PartialEq for FlagSnapshot

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl Serialize for FlagSnapshot

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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 StructuralPartialEq for FlagSnapshot

Auto Trait Implementations§

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.