Enum clap::ValueSource
source · #[non_exhaustive]
pub enum ValueSource {
DefaultValue,
EnvVariable,
CommandLine,
}
Expand description
Origin of the argument’s value
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.
DefaultValue
Value came Arg::default_value
EnvVariable
Value came Arg::env
CommandLine
Value was passed in on the command-line
Trait Implementations§
source§impl Clone for ValueSource
impl Clone for ValueSource
source§fn clone(&self) -> ValueSource
fn clone(&self) -> ValueSource
Returns a copy of the value. Read more
1.0.0 · source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source
. Read moresource§impl Debug for ValueSource
impl Debug for ValueSource
source§impl Ord for ValueSource
impl Ord for ValueSource
source§fn cmp(&self, other: &ValueSource) -> Ordering
fn cmp(&self, other: &ValueSource) -> Ordering
1.21.0 · source§fn max(self, other: Self) -> Selfwhere
Self: Sized,
fn max(self, other: Self) -> Selfwhere
Self: Sized,
Compares and returns the maximum of two values. Read more
source§impl PartialEq<ValueSource> for ValueSource
impl PartialEq<ValueSource> for ValueSource
source§fn eq(&self, other: &ValueSource) -> bool
fn eq(&self, other: &ValueSource) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.source§impl PartialOrd<ValueSource> for ValueSource
impl PartialOrd<ValueSource> for ValueSource
source§fn partial_cmp(&self, other: &ValueSource) -> Option<Ordering>
fn partial_cmp(&self, other: &ValueSource) -> Option<Ordering>
1.0.0 · source§fn le(&self, other: &Rhs) -> bool
fn le(&self, other: &Rhs) -> bool
This method tests less than or equal to (for
self
and other
) and is used by the <=
operator. Read moreimpl Copy for ValueSource
impl Eq for ValueSource
impl StructuralEq for ValueSource
impl StructuralPartialEq for ValueSource
Auto Trait Implementations§
impl RefUnwindSafe for ValueSource
impl Send for ValueSource
impl Sync for ValueSource
impl Unpin for ValueSource
impl UnwindSafe for ValueSource
Blanket Implementations§
source§impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
impl<Q, K> Equivalent<K> for Qwhere
Q: Eq + ?Sized,
K: Borrow<Q> + ?Sized,
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.