[][src]Struct rustc_mir::hair::pattern::PatternContext

pub struct PatternContext<'a, 'tcx: 'a> {
    pub tcx: TyCtxt<'a, 'tcx, 'tcx>,
    pub param_env: ParamEnv<'tcx>,
    pub tables: &'a TypeckTables<'tcx>,
    pub substs: &'tcx Substs<'tcx>,
    pub errors: Vec<PatternError>,
}
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Fields

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🔬 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?

🔬 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?

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Methods

impl<'a, 'tcx> PatternContext<'a, 'tcx>
[src]

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impl<'a, 'tcx> PatternContext<'a, 'tcx>
[src]

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Important traits for Vec<u8>

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

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

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

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Takes a HIR Path. If the path is a constant, evaluates it and feeds it to const_to_pat. Any other path (like enum variants without fields) is converted to the corresponding pattern via lower_variant_or_leaf

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Converts literals, paths and negation of literals to patterns. The special case for negation exists to allow things like -128i8 which would overflow if we tried to evaluate 128i8 and then negate afterwards.

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Converts an evaluated constant to a pattern (if possible). This means aggregate values (like structs and enums) are converted to a pattern that matches the value (as if you'd compare via eq).

Auto Trait Implementations

impl<'a, 'tcx> !Send for PatternContext<'a, 'tcx>

impl<'a, 'tcx> !Sync for PatternContext<'a, 'tcx>

Blanket Implementations

impl<T> From for T
[src]

Performs the conversion.

impl<T, U> Into for T where
    U: From<T>, 
[src]

Performs the conversion.

impl<T, U> TryFrom for T where
    T: From<U>, 
[src]

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The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> Borrow for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Immutably borrows from an owned value. Read more

impl<T, U> TryInto for T where
    U: TryFrom<T>, 
[src]

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

The type returned in the event of a conversion error.

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

Performs the conversion.

impl<T> BorrowMut for T where
    T: ?Sized
[src]

Important traits for &'a mut R

Mutably borrows from an owned value. Read more

impl<T> Any for T where
    T: 'static + ?Sized
[src]

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

this method will likely be replaced by an associated static

Gets the TypeId of self. Read more

impl<E> SpecializationError for E
[src]

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Create an error for a missing method specialization. Defaults to panicking with type, trait & method names. S is the encoder/decoder state type, T is the type being encoded/decoded, and the arguments are the names of the trait and method that should've been overridden. Read more

impl<T> Erased for T
[src]

impl<T> Send for T where
    T: ?Sized
[src]

impl<T> Sync for T where
    T: ?Sized
[src]

impl<T> Erased for T

impl<T> MaybeResult for T
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impl<'a, T> Captures for T where
    T: ?Sized
[src]