Module rustc_hir_analysis::variance::constraints

Code to gather up constraints. Constraint construction and representation

The second pass over the HIR determines the set of constraints. We walk the set of items and, for each member, generate new constraints.

Structs

• Constraint
  Declares that the variable decl_id appears in a location with variance variance.
• ConstraintContext
• CurrentItem
  To build constraints, we visit one item (type, trait) at a time and look at its contents. So e.g., if we have

Functions

• add_constraints_from_crate