Class NullnessAnalysis

java.lang.Object

com.google.errorprone.dataflow.nullnesspropagation.NullnessAnalysis

All Implemented Interfaces:

Serializable

public final class NullnessAnalysis
extends Object
implements Serializable

An interface to the nullness analysis.

See Also:

• Serialized Form

Method Summary

Modifier and Type	Method	Description
Nullness	getNullness(com.sun.source.util.TreePath exprPath, com.sun.tools.javac.util.Context context)	Returns the Nullness of the leaf of exprPath.
static NullnessAnalysis	instance(com.sun.tools.javac.util.Context context)	Retrieve an instance of NullnessAnalysis from the context.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Details

instance

public static NullnessAnalysis instance(com.sun.tools.javac.util.Context context)

Retrieve an instance of NullnessAnalysis from the context. If there is no NullnessAnalysis currently in the context, create one, insert it, and return it.

getNullness

public Nullness getNullness(com.sun.source.util.TreePath exprPath,
 com.sun.tools.javac.util.Context context)

Returns the Nullness of the leaf of exprPath.

If the leaf required the compiler to generate autoboxing or autounboxing calls, getNullness returns the Nullness after the boxing/unboxing. This implies that, in those cases, it will always return NONNULL.