Struct pretty_exec::clap::builder::RangedI64ValueParser
[−]pub struct RangedI64ValueParser<T = i64>where
T: TryFrom<i64> + Clone + Send + Sync,{ /* private fields */ }Expand description
Parse number that fall within a range of values
NOTE: To capture negative values, you will also need to set
Arg::allow_negative_numbers or
Arg::allow_hyphen_values.
Example
Usage:
let mut cmd = clap::Command::new("raw")
.arg(
clap::Arg::new("port")
.long("port")
.value_parser(clap::value_parser!(u16).range(3000..))
.action(clap::ArgAction::Set)
.required(true)
);
let m = cmd.try_get_matches_from_mut(["cmd", "--port", "3001"]).unwrap();
let port: u16 = *m.get_one("port")
.expect("required");
assert_eq!(port, 3001);Semantics:
let value_parser = clap::builder::RangedI64ValueParser::<i32>::new().range(-1..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_eq!(value_parser.parse_ref(&cmd, arg, OsStr::new("-1")).unwrap(), -1);
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
impl<T> RangedI64ValueParser<T>where
T: TryFrom<i64> + Clone + Send + Sync,
impl<T> RangedI64ValueParser<T>where
T: TryFrom<i64> + Clone + Send + Sync,
pub fn new() -> RangedI64ValueParser<T>
pub fn new() -> RangedI64ValueParser<T>
Select full range of i64
pub fn range<B>(self, range: B) -> RangedI64ValueParser<T>where
B: RangeBounds<i64>,
pub fn range<B>(self, range: B) -> RangedI64ValueParser<T>where
B: RangeBounds<i64>,
Narrow the supported range
Trait Implementations
impl<T> Clone for RangedI64ValueParser<T>where
T: Clone + TryFrom<i64> + Send + Sync,
impl<T> Clone for RangedI64ValueParser<T>where
T: Clone + TryFrom<i64> + Send + Sync,
fn clone(&self) -> RangedI64ValueParser<T>
fn clone(&self) -> RangedI64ValueParser<T>
Returns a copy of the value. Read more
1.0.0 · sourceconst fn clone_from(&mut self, source: &Self)
const fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreimpl<T> Default for RangedI64ValueParser<T>where
T: TryFrom<i64> + Clone + Send + Sync,
impl<T> Default for RangedI64ValueParser<T>where
T: TryFrom<i64> + Clone + Send + Sync,
fn default() -> RangedI64ValueParser<T>
fn default() -> RangedI64ValueParser<T>
Returns the “default value” for a type. Read more
impl<T, B> From<B> for RangedI64ValueParser<T>where
T: TryFrom<i64> + Clone + Send + Sync,
B: RangeBounds<i64>,
impl<T, B> From<B> for RangedI64ValueParser<T>where
T: TryFrom<i64> + Clone + Send + Sync,
B: RangeBounds<i64>,
fn from(range: B) -> RangedI64ValueParser<T>
fn from(range: B) -> RangedI64ValueParser<T>
Converts to this type from the input type.
impl<T> TypedValueParser for RangedI64ValueParser<T>where
T: 'static + TryFrom<i64> + Clone + Send + Sync,
<T as TryFrom<i64>>::Error: 'static + Send + Sync + Error + ToString,
impl<T> TypedValueParser for RangedI64ValueParser<T>where
T: 'static + TryFrom<i64> + Clone + Send + Sync,
<T as TryFrom<i64>>::Error: 'static + Send + Sync + Error + ToString,
type Value = T
type Value = T
Argument’s value type
fn parse_ref(
&self,
cmd: &Command,
arg: Option<&Arg>,
raw_value: &OsStr
) -> Result<<RangedI64ValueParser<T> as TypedValueParser>::Value, Error<RichFormatter>>
fn parse_ref(
&self,
cmd: &Command,
arg: Option<&Arg>,
raw_value: &OsStr
) -> Result<<RangedI64ValueParser<T> as TypedValueParser>::Value, Error<RichFormatter>>
Parse the argument value Read more
fn parse(
&self,
cmd: &Command,
arg: Option<&Arg>,
value: OsString
) -> Result<Self::Value, Error<RichFormatter>>
fn parse(
&self,
cmd: &Command,
arg: Option<&Arg>,
value: OsString
) -> Result<Self::Value, Error<RichFormatter>>
Parse the argument value Read more
fn possible_values(
&self
) -> Option<Box<dyn Iterator<Item = PossibleValue>, Global>>
fn possible_values(
&self
) -> Option<Box<dyn Iterator<Item = PossibleValue>, Global>>
Reflect on enumerated value properties Read more
impl<T> Copy for RangedI64ValueParser<T>where
T: Copy + TryFrom<i64> + Clone + Send + Sync,
Auto Trait Implementations
impl<T> RefUnwindSafe for RangedI64ValueParser<T>where
T: RefUnwindSafe,
impl<T> Send for RangedI64ValueParser<T>
impl<T> Sync for RangedI64ValueParser<T>
impl<T> Unpin for RangedI64ValueParser<T>where
T: Unpin,
impl<T> UnwindSafe for RangedI64ValueParser<T>where
T: UnwindSafe,
Blanket Implementations
sourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<I> IntoResettable<ValueParser> for Iwhere
I: Into<ValueParser>,
impl<I> IntoResettable<ValueParser> for Iwhere
I: Into<ValueParser>,
fn into_resettable(self) -> Resettable<ValueParser>
fn into_resettable(self) -> Resettable<ValueParser>
Convert to the intended resettable type
impl<X> Pipe for X
impl<X> Pipe for X
fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Returnwhere
Function: FnOnce(&'a Self) -> Return,
fn pipe_ref<'a, Return, Function>(&'a self, f: Function) -> Returnwhere
Function: FnOnce(&'a Self) -> Return,
fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Returnwhere
Function: FnOnce(&'a mut Self) -> Return,
fn pipe_mut<'a, Return, Function>(&'a mut self, f: Function) -> Returnwhere
Function: FnOnce(&'a mut Self) -> Return,
fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
Self: AsRef<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,
fn pipe_as_ref<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
Self: AsRef<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,
Apply
f to &self where f takes a single parameter of type Param
and Self implements trait AsRef<Param>. Read morefn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Returnwhere
Self: AsMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,
fn pipe_as_mut<'a, Param, Return, Function>(&'a mut self, f: Function) -> Returnwhere
Self: AsMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,
Apply
f to &mut self where f takes a single parameter of type Param
and Self implements trait AsMut<Param>. Read morefn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
Self: Deref<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,
fn pipe_deref<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
Self: Deref<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,
Apply
f to &self where f takes a single parameter of type Param
and Self implements trait Deref<Target = Param>. Read morefn pipe_deref_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Returnwhere
Self: DerefMut<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,
fn pipe_deref_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Returnwhere
Self: DerefMut<Target = Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,
Apply
f to &mut self where f takes a single parameter of type Param
and Self implements trait [DerefMut<Target = Param>]. Read morefn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
Self: Borrow<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,
fn pipe_borrow<'a, Param, Return, Function>(&'a self, f: Function) -> Returnwhere
Self: Borrow<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a Param) -> Return,
Apply
f to &self where f takes a single parameter of type Param
and Self implements trait Borrow<Param>. Read morefn pipe_borrow_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Returnwhere
Self: BorrowMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,
fn pipe_borrow_mut<'a, Param, Return, Function>(
&'a mut self,
f: Function
) -> Returnwhere
Self: BorrowMut<Param>,
Param: 'a + ?Sized,
Function: FnOnce(&'a mut Param) -> Return,
Apply
f to &mut self where f takes a single parameter of type Param
and Self implements trait BorrowMut<Param>. Read more