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Polymorphization Analysis

This module implements an analysis of functions, methods and closures to determine which generic parameters are unused (and eventually, in what ways generic parameters are used - only for their size, offset of a field, etc.).

Structs

Visitor used to check if a generic parameter is used.
Visitor used to aggregate generic parameter uses.

Functions

Emit errors for the function annotated by #[rustc_polymorphize_error], labelling each generic parameter which was unused.
Some parameters are considered used-by-default, such as non-generic parameters and the dummy generic parameters from closures, this function marks them as used. leaf_is_closure should be true if the item that unused_generic_params was invoked on is a closure.
Provide implementations of queries relating to polymorphization analysis.
Returns true if the instance should be polymorphized.
Determine which generic parameters are used by the instance.