Module rustc_middle::middle::region
source · [−]Expand description
This file declares the ScopeTree type, which describes
the parent links in the region hierarchy.
For more information about how MIR-based region-checking works, see the rustc dev guide.
Structs
Represents a subscope of
block for a binding that is introduced
by block.stmts[first_statement_index]. Such subscopes represent
a suffix of the block. Note that each subscope does not include
the initializer expression, if any, for the statement indexed by
first_statement_index.Represents a statically-describable scope that can be used to
bound the lifetime/region for values.
The region scope tree encodes information about region relationships.
Enums
Identifies the reason that a given expression is an rvalue candidate
(see the
rvalue_candidates field for more information what rvalue
candidates in general). In constants, the lifetime field is None
to indicate that certain expressions escape into ’static and
should have no local cleanup scope.