| package org.checkerframework.dataflow.analysis; |
| |
| import org.checkerframework.checker.nullness.qual.Nullable; |
| |
| /** |
| * This interface defines a backward analysis, given a control flow graph and a backward transfer |
| * function. |
| * |
| * @param <V> the abstract value type to be tracked by the analysis |
| * @param <S> the store type used in the analysis |
| * @param <T> the backward transfer function type that is used to approximate runtime behavior |
| */ |
| public interface BackwardAnalysis< |
| V extends AbstractValue<V>, S extends Store<S>, T extends BackwardTransferFunction<V, S>> |
| extends Analysis<V, S, T> { |
| |
| /** |
| * Get the output store at the entry block of a given control flow graph. For a backward analysis, |
| * the output store contains the analyzed flow information from the exit block to the entry block. |
| * |
| * @return the output store at the entry block of a given control flow graph |
| */ |
| @Nullable S getEntryStore(); |
| } |
