Enum rustc::hir::ParamName

pub enum ParamName {
    Plain(Ident),
    Fresh(usize),
}

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

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Variants

Plain(Ident)

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Some user-given name like T or 'x.

Fresh(usize)

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

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Synthetic name generated when user elided a lifetime in an impl header, e.g. the lifetimes in cases like these:

impl Foo for &u32
impl Foo<'_> for u32

in that case, we rewrite to

impl<'f> Foo for &'f u32
impl<'f> Foo<'f> for u32

where 'f is something like Fresh(0). The indices are unique per impl, but not necessarily continuous.

Methods

impl ParamName

pub fn ident(&self) -> Ident

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

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pub fn modern(&self) -> ParamName

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

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Trait Implementations

impl Debug for ParamName

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

Formats the value using the given formatter.

impl Clone for ParamName

fn clone(&self) -> ParamName

Returns a copy of the value.

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

Performs copy-assignment from source.

impl PartialEq for ParamName

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for ParamName

fn assert_receiver_is_total_eq(&self)

impl Encodable for ParamName

fn encode<__S: Encoder>(&self, s: &mut __S) -> Result<(), __S::Error>

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

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impl Decodable for ParamName

fn decode<__D: Decoder>(d: &mut __D) -> Result<ParamName, __D::Error>

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

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impl Hash for ParamName

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

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where     H: Hasher,

Feeds a slice of this type into the given [Hasher].

impl Copy for ParamName

impl<'a, 'tcx> HashStable<StableHashingContext<'a>> for ParamName

fn hash_stable<W: StableHasherResult>(     &self,     __ctx: &mut StableHashingContext<'a>,     __hasher: &mut StableHasher<W> )

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

this crate is being loaded from the sysroot, an unstable location; did you mean to load this crate from crates.io via Cargo.toml instead?