Enum Arg

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pub enum Arg<'a> {
    Str(&'a str),
    String(String),
    UInt(u64),
    SInt(i64, u8),
    Float(f64),
    USizeRef(&'a mut usize),
}
Expand description

Printf argument types. Note no implementation of ToArg constructs the owned variants (String and WString); callers can do so explicitly.

Variants§

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Str(&'a str)

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String(String)

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UInt(u64)

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SInt(i64, u8)

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Float(f64)

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USizeRef(&'a mut usize)

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impl<'a> Arg<'a>

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pub fn set_count(&mut self, count: usize) -> Result<(), Error>

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pub fn as_str<'s>(&'s self, storage: &'s mut String) -> Result<&'s str, Error>
where 'a: 's,

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pub fn as_uint(&self) -> Result<u64, Error>

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pub fn as_sint(&self) -> Result<i64, Error>

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pub fn as_wrapping_sint(&self) -> Result<(bool, u64), Error>

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pub fn as_float(&self) -> Result<f64, Error>

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pub fn as_char(&self) -> Result<char, Error>

Trait Implementations§

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impl<'a> Debug for Arg<'a>

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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<'a> PartialEq for Arg<'a>

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fn eq(&self, other: &Arg<'a>) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl<'a> StructuralPartialEq for Arg<'a>

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impl<'a> Freeze for Arg<'a>

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impl<'a> RefUnwindSafe for Arg<'a>

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impl<'a> Send for Arg<'a>

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impl<'a> Sync for Arg<'a>

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impl<'a> Unpin for Arg<'a>

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impl<'a> !UnwindSafe for Arg<'a>

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> 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, 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.