Enum rustc_middle::thir::StmtKind
source · [−]pub enum StmtKind<'tcx> {
Expr {
scope: Scope,
expr: ExprId,
},
Let {
remainder_scope: Scope,
init_scope: Scope,
pattern: Pat<'tcx>,
initializer: Option<ExprId>,
lint_level: LintLevel,
},
}Variants
Expr
Fields
scope: ScopeThe scope for this statement; may be used as lifetime of temporaries.
expr: ExprIdThe expression being evaluated in this statement.
An expression with a trailing semicolon.
Let
Fields
remainder_scope: ScopeThe scope for variables bound in this let; it covers this and
all the remaining statements in the block.
init_scope: ScopeThe scope for the initialization itself; might be used as lifetime of temporaries.
pattern: Pat<'tcx>let <PAT> = ...
If a type annotation is included, it is added as an ascription pattern.
lint_level: LintLevelThe lint level for this let statement.
A let binding.
Trait Implementations
sourceimpl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for StmtKind<'tcx>
impl<'tcx, '__ctx> HashStable<StableHashingContext<'__ctx>> for StmtKind<'tcx>
fn hash_stable(
&self,
__hcx: &mut StableHashingContext<'__ctx>,
__hasher: &mut StableHasher
)
Auto Trait Implementations
impl<'tcx> !RefUnwindSafe for StmtKind<'tcx>
impl<'tcx> !Send for StmtKind<'tcx>
impl<'tcx> !Sync for StmtKind<'tcx>
impl<'tcx> Unpin for StmtKind<'tcx>
impl<'tcx> !UnwindSafe for StmtKind<'tcx>
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcepub fn borrow_mut(&mut self) -> &mut T
pub fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
sourceimpl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
impl<Ctxt, T> DepNodeParams<Ctxt> for T where
Ctxt: DepContext,
T: for<'a> HashStable<StableHashingContext<'a>> + Debug,
pub default fn fingerprint_style() -> FingerprintStyle
sourcepub default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
pub default fn to_fingerprint(&self, tcx: Ctxt) -> Fingerprint
This method turns the parameters of a DepNodeConstructor into an opaque Fingerprint to be used in DepNode. Not all DepNodeParams support being turned into a Fingerprint (they don’t need to if the corresponding DepNode is anonymous). Read more
pub default fn to_debug_str(&self, Ctxt) -> String
sourcepub default fn recover(
Ctxt,
&DepNode<<Ctxt as DepContext>::DepKind>
) -> Option<T>
pub default fn recover(
Ctxt,
&DepNode<<Ctxt as DepContext>::DepKind>
) -> Option<T>
This method tries to recover the query key from the given DepNode,
something which is needed when forcing DepNodes during red-green
evaluation. The query system will only call this method if
fingerprint_style() is not FingerprintStyle::Opaque.
It is always valid to return None here, in which case incremental
compilation will treat the query as having changed instead of forcing it. Read more
sourceimpl<T> MaybeResult<T> for T
impl<T> MaybeResult<T> for T
impl<'a, T> Captures<'a> for T where
T: ?Sized,
Layout
Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference’s “Type Layout” chapter for details on type layout guarantees.
Size: 56 bytes
Size for each variant:
Expr: 12 bytesLet: 52 bytes