Enum rustc_mir::hair::pattern::_match::Constructor

pub enum Constructor<'tcx> {
    Single,
    Variant(DefId),
    ConstantValue(&'tcx Const<'tcx>),
    ConstantRange(&'tcx Const<'tcx>, &'tcx Const<'tcx>, RangeEnd),
    Slice(u64),
}

🔬 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?

Variants

Single

🔬 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?

The constructor of all patterns that don't vary by constructor, e.g. struct patterns and fixed-length arrays.

Variant(DefId)

🔬 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?

Enum variants.

ConstantValue(&'tcx Const<'tcx>)

🔬 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?

Literal values.

ConstantRange(&'tcx Const<'tcx>, &'tcx Const<'tcx>, RangeEnd)

🔬 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?

Ranges of literal values (2...5 and 2..5).

Slice(u64)

🔬 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?

Array patterns of length n.

Methods

impl<'tcx> Constructor<'tcx>

fn variant_index_for_adt(&self, adt: &'tcx AdtDef) -> usize

🔬 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?

Trait Implementations

impl<'tcx> Clone for Constructor<'tcx>

fn clone(&self) -> Constructor<'tcx>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'tcx> Debug for Constructor<'tcx>

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

Formats the value using the given formatter.

impl<'tcx> PartialEq for Constructor<'tcx>

fn eq(&self, other: &Constructor<'tcx>) -> bool

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

fn ne(&self, other: &Constructor<'tcx>) -> bool

This method tests for !=.