Struct rustc_middle::thir::Block [−][src]
pub struct Block {
pub targeted_by_break: bool,
pub region_scope: Scope,
pub opt_destruction_scope: Option<Scope>,
pub span: Span,
pub stmts: Box<[StmtId]>,
pub expr: Option<ExprId>,
pub safety_mode: BlockSafety,
}
Fields
targeted_by_break: bool
Whether the block itself has a label. Used by label: {}
and try
blocks.
This does not include labels on loops, e.g. 'label: loop {}
.
region_scope: Scope
opt_destruction_scope: Option<Scope>
span: Span
The span of the block, including the opening braces,
the label, and the unsafe
keyword, if present.
stmts: Box<[StmtId]>
The statements in the blocK.
expr: Option<ExprId>
The trailing expression of the block, if any.
safety_mode: BlockSafety
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for Block
impl UnwindSafe for Block
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<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,
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
This method tries to recover the query key from the given DepNode
,
something which is needed when forcing DepNode
s 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
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