pub struct InputString(/* private fields */);
Expand description

Conditionally stores the input string in parse errors.

This type stores the input string of a parse function depending on whether alloc feature is enabled. When it is enabled, the string is stored inside as String. When disabled this is a zero-sized type and attempt to store a string does nothing.

This provides two methods to format the error strings depending on the context.

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impl InputString

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pub fn display_cannot_parse<'a, T>(&'a self, what: &'a T) -> CannotParse<'a, T>where T: Display + ?Sized,

Displays a message saying failed to parse <self> as <what>.

This is normally used whith the write_err! macro.

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pub fn unknown_variant<T>(&self, what: &T, f: &mut Formatter<'_>) -> Resultwhere T: Display + ?Sized,

Formats a message saying <self> is not a known <what>.

This is normally used in leaf parse errors (with no source) when parsing an enum.

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impl Clone for InputString

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fn clone(&self) -> InputString

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for InputString

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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<&str> for InputString

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fn from(input: &str) -> Self

Converts to this type from the input type.
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impl From<Box<str, Global>> for InputString

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fn from(input: Box<str>) -> Self

Converts to this type from the input type.
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impl From<Cow<'_, str>> for InputString

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fn from(input: Cow<'_, str>) -> Self

Converts to this type from the input type.
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impl From<String> for InputString

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fn from(input: String) -> Self

Converts to this type from the input type.
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impl Hash for InputString

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for InputString

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fn cmp(&self, other: &InputString) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PartialEq<InputString> for InputString

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

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

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd<InputString> for InputString

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fn partial_cmp(&self, other: &InputString) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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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 more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Eq for InputString

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impl StructuralEq for InputString

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impl StructuralPartialEq for InputString

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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 Twhere 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.