com.google.javascript.jscomp.type

Interface ReverseAbstractInterpreter

All Known Implementing Classes:

ChainableReverseAbstractInterpreter, ClosureReverseAbstractInterpreter, SemanticReverseAbstractInterpreter

public interface ReverseAbstractInterpreter

This interface defines what reversed abstract interpreters provide.

Abstract interpretation is the process of interpreting a program at an abstracted level (such as at the type level) instead of the concrete level (the flow of values). This reversed abstract interpreter reverses the abstract interpretation process by knowing the outcome of some computation and calculating a preciser view of the world than the view without knowing the outcome of the computation.

Method Summary

Methods

Modifier and Type	Method and Description
FlowScope	getPreciserScopeKnowingConditionOutcome(Node condition, FlowScope blindScope, boolean outcome) Calculates a precise version of the scope knowing the outcome of the condition.

Method Detail

getPreciserScopeKnowingConditionOutcome

FlowScope getPreciserScopeKnowingConditionOutcome(Node condition,
                                                FlowScope blindScope,
                                                boolean outcome)

Calculates a precise version of the scope knowing the outcome of the condition.

Parameters:

condition - the condition's expression

blindScope - the scope without knowledge about the outcome of the condition

outcome - the outcome of the condition