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Ident

nickel_lang_parser::identifier

Struct Ident

pub struct Ident(/* private fields */);

Expand description

An interned identifier.

Implementations§

impl Ident

pub fn new(s: impl AsRef<str>) -> Self

pub fn label(&self) -> &'static str

Return the string representation of this identifier.

pub fn into_label(self) -> String

pub fn fresh() -> Self

Create a new fresh identifier. This identifier is unique and is guaranteed not to collide with any identifier defined before.

Generated identifiers start with a special prefix that isn’t valid for Nickel identifiers. This doesn’t actually guarantee that the label of a fresh identifier will always be different from the label of a normal identifier created by Ident::new: there are ways to introduce normal identifiers that aren’t parsed as Nickel identifiers (for example, std.record.insert "%1" 42 {} causes an identifier to be created with the name “%1”).

The consequence of all this is that different Idents can have the same label. Ident::new("%1") and Ident::fresh() might both generate idents with label “%1”, but they will be different idents.

pub fn spanned(self, pos: TermPos) -> LocIdent

Attaches a position to this identifier, making it a LocIdent.

pub fn is_generated(&self) -> bool

Checks whether this identifier was generated with Ident::fresh.

Trait Implementations§

impl Borrow<Ident> for LocIdent

fn borrow(&self) -> &Ident

Immutably borrows from an owned value. Read more

impl Clone for Ident

fn clone(&self) -> Ident

Returns a duplicate of the value. Read more

1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

impl Debug for Ident

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl<'de> Deserialize<'de> for Ident

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

impl Display for Ident

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

impl From<&LocIdent> for Ident

fn from(ident: &LocIdent) -> Self

Converts to this type from the input type.

impl<'a> From<&'a str> for Ident

fn from(s: &'a str) -> Self

Converts to this type from the input type.

impl From<Ident> for &'static str

fn from(id: Ident) -> &'static str

Converts to this type from the input type.

impl From<Ident> for LocIdent

fn from(ident: Ident) -> Self

Converts to this type from the input type.

impl From<String> for Ident

fn from(s: String) -> Self

Converts to this type from the input type.

impl Hash for Ident

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

Feeds this value into the given Hasher. Read more

1.3.0 · Source§

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

impl Ord for Ident

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

This method returns an Ordering between self and other. Read more

1.21.0 · Source§

fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more

1.21.0 · Source§

fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more

1.50.0 · Source§

fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more

impl PartialEq for Ident

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

Tests for self and other values to be equal, and is used by ==.

1.0.0 · Source§

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Ident

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

This method returns an ordering between self and other values if one exists. Read more

1.0.0 · Source§

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more

1.0.0 · Source§

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more

1.0.0 · Source§

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more

1.0.0 · Source§

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more

impl Serialize for Ident

fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

impl Allocable for Ident

impl Copy for Ident

impl Eq for Ident

impl StructuralPartialEq for Ident

Auto Trait Implementations§

impl Freeze for Ident

impl RefUnwindSafe for Ident

impl Send for Ident

impl Sync for Ident

impl Unpin for Ident

impl UnsafeUnpin for Ident

impl UnwindSafe for Ident

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<Q, K> Comparable<K> for Q
where Q: Ord + ?Sized, K: Borrow<Q> + ?Sized,

fn compare(&self, key: &K) -> Ordering

Compare self to key and return their ordering.

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more

impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.

impl<T, U> ExactFrom<T> for U
where U: TryFrom<T>,

fn exact_from(value: T) -> U

impl<T, U> ExactInto<U> for T
where U: ExactFrom<T>,

fn exact_into(self) -> U

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> IntoEither for T

fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

impl<T, U> OverflowingInto<U> for T
where U: OverflowingFrom<T>,

fn overflowing_into(self) -> (U, bool)

impl<T, U> RoundingInto<U> for T
where U: RoundingFrom<T>,

fn rounding_into(self, rm: RoundingMode) -> (U, Ordering)

impl<T, U> SaturatingInto<U> for T
where U: SaturatingFrom<T>,

fn saturating_into(self) -> U

impl<T> ToDebugString for T
where T: Debug,

fn to_debug_string(&self) -> String

Returns the String produced by Ts Debug implementation.

§Examples

use malachite_base::strings::ToDebugString;

assert_eq!([1, 2, 3].to_debug_string(), "[1, 2, 3]");
assert_eq!(
    [vec![2, 3], vec![], vec![4]].to_debug_string(),
    "[[2, 3], [], [4]]"
);
assert_eq!(Some(5).to_debug_string(), "Some(5)");

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T> ToString for T
where T: Display + ?Sized,

fn to_string(&self) -> String

Converts the given value to a String. Read more

impl<T, U> TryConvert<'_, T> for U
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

fn try_convert( _: &AstAlloc, from: T, ) -> Result<U, <U as TryConvert<'_, T>>::Error>

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T, U> WrappingInto<U> for T
where U: WrappingFrom<T>,

fn wrapping_into(self) -> U

impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,