pub struct RangedU64ValueParser<T = u64>{ /* private fields */ }
Expand description
Parse number that fall within a range of values
§Example
Usage:
let mut cmd = clap::Command::new("raw")
.arg(
clap::Arg::new("port")
.long("port")
.value_parser(clap::value_parser!(u64).range(3000..))
.action(clap::ArgAction::Set)
.required(true)
);
let m = cmd.try_get_matches_from_mut(["cmd", "--port", "3001"]).unwrap();
let port: u64 = *m.get_one("port")
.expect("required");
assert_eq!(port, 3001);
Semantics:
let value_parser = clap::builder::RangedU64ValueParser::<u32>::new().range(0..200);
assert!(value_parser.parse_ref(&cmd, arg, OsStr::new("random")).is_err());
assert!(value_parser.parse_ref(&cmd, arg, OsStr::new("")).is_err());
assert!(value_parser.parse_ref(&cmd, arg, OsStr::new("-200")).is_err());
assert!(value_parser.parse_ref(&cmd, arg, OsStr::new("300")).is_err());
assert!(value_parser.parse_ref(&cmd, arg, OsStr::new("-1")).is_err());
assert_eq!(value_parser.parse_ref(&cmd, arg, OsStr::new("0")).unwrap(), 0);
assert_eq!(value_parser.parse_ref(&cmd, arg, OsStr::new("50")).unwrap(), 50);
Implementations§
source§impl<T> RangedU64ValueParser<T>
impl<T> RangedU64ValueParser<T>
sourcepub fn new() -> RangedU64ValueParser<T>
pub fn new() -> RangedU64ValueParser<T>
Select full range of u64
sourcepub fn range<B>(self, range: B) -> RangedU64ValueParser<T>where
B: RangeBounds<u64>,
pub fn range<B>(self, range: B) -> RangedU64ValueParser<T>where
B: RangeBounds<u64>,
Narrow the supported range
Trait Implementations§
source§impl<T> Clone for RangedU64ValueParser<T>
impl<T> Clone for RangedU64ValueParser<T>
source§fn clone(&self) -> RangedU64ValueParser<T>
fn clone(&self) -> RangedU64ValueParser<T>
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<T> Debug for RangedU64ValueParser<T>
impl<T> Debug for RangedU64ValueParser<T>
source§impl<T> Default for RangedU64ValueParser<T>
impl<T> Default for RangedU64ValueParser<T>
source§fn default() -> RangedU64ValueParser<T>
fn default() -> RangedU64ValueParser<T>
Returns the “default value” for a type. Read more
source§impl<T, B> From<B> for RangedU64ValueParser<T>
impl<T, B> From<B> for RangedU64ValueParser<T>
source§fn from(range: B) -> RangedU64ValueParser<T>
fn from(range: B) -> RangedU64ValueParser<T>
Converts to this type from the input type.
source§impl<T> TypedValueParser for RangedU64ValueParser<T>
impl<T> TypedValueParser for RangedU64ValueParser<T>
source§fn parse_ref(
&self,
cmd: &Command,
arg: Option<&Arg>,
raw_value: &OsStr,
) -> Result<<RangedU64ValueParser<T> as TypedValueParser>::Value, Error>
fn parse_ref( &self, cmd: &Command, arg: Option<&Arg>, raw_value: &OsStr, ) -> Result<<RangedU64ValueParser<T> as TypedValueParser>::Value, Error>
Parse the argument value Read more
source§fn parse_ref_(
&self,
cmd: &Command,
arg: Option<&Arg>,
value: &OsStr,
_source: ValueSource,
) -> Result<Self::Value, Error>
fn parse_ref_( &self, cmd: &Command, arg: Option<&Arg>, value: &OsStr, _source: ValueSource, ) -> Result<Self::Value, Error>
Parse the argument value Read more
source§fn parse(
&self,
cmd: &Command,
arg: Option<&Arg>,
value: OsString,
) -> Result<Self::Value, Error>
fn parse( &self, cmd: &Command, arg: Option<&Arg>, value: OsString, ) -> Result<Self::Value, Error>
Parse the argument value Read more
source§fn parse_(
&self,
cmd: &Command,
arg: Option<&Arg>,
value: OsString,
_source: ValueSource,
) -> Result<Self::Value, Error>
fn parse_( &self, cmd: &Command, arg: Option<&Arg>, value: OsString, _source: ValueSource, ) -> Result<Self::Value, Error>
Parse the argument value Read more
source§fn possible_values(
&self,
) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>>
fn possible_values( &self, ) -> Option<Box<dyn Iterator<Item = PossibleValue> + '_>>
Reflect on enumerated value properties Read more
source§fn map<T, F>(self, func: F) -> MapValueParser<Self, F>
fn map<T, F>(self, func: F) -> MapValueParser<Self, F>
Adapt a
TypedValueParser
from one value to another Read moreimpl<T> Copy for RangedU64ValueParser<T>
Auto Trait Implementations§
impl<T> Freeze for RangedU64ValueParser<T>
impl<T> RefUnwindSafe for RangedU64ValueParser<T>where
T: RefUnwindSafe,
impl<T> Send for RangedU64ValueParser<T>where
T: Send,
impl<T> Sync for RangedU64ValueParser<T>where
T: Sync,
impl<T> Unpin for RangedU64ValueParser<T>where
T: Unpin,
impl<T> UnwindSafe for RangedU64ValueParser<T>where
T: UnwindSafe,
Blanket Implementations§
source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
source§unsafe fn clone_to_uninit(&self, dst: *mut T)
unsafe fn clone_to_uninit(&self, dst: *mut T)
🔬This is a nightly-only experimental API. (
clone_to_uninit
)source§impl<I> IntoResettable<ValueParser> for Iwhere
I: Into<ValueParser>,
impl<I> IntoResettable<ValueParser> for Iwhere
I: Into<ValueParser>,
source§fn into_resettable(self) -> Resettable<ValueParser>
fn into_resettable(self) -> Resettable<ValueParser>
Convert to the intended resettable type