org.checkerframework.checker.nullness

Class NullnessAnnotatedTypeFactory.NullnessPropagationTreeAnnotator

java.lang.Object

com.sun.source.util.SimpleTreeVisitor<Void,AnnotatedTypeMirror>

org.checkerframework.framework.type.treeannotator.TreeAnnotator

org.checkerframework.framework.type.treeannotator.PropagationTreeAnnotator

org.checkerframework.checker.nullness.NullnessAnnotatedTypeFactory.NullnessPropagationTreeAnnotator

All Implemented Interfaces:

TreeVisitor<Void,AnnotatedTypeMirror>

Enclosing class:

NullnessAnnotatedTypeFactory

protected static class NullnessAnnotatedTypeFactory.NullnessPropagationTreeAnnotator
extends PropagationTreeAnnotator

Nullness doesn't call propagation on binary and unary because the result is always @Initialized (the default qualifier).

Would this be valid to move into CommitmentTreeAnnotator.

Field Summary

Fields inherited from class org.checkerframework.framework.type.treeannotator.TreeAnnotator

atypeFactory

Fields inherited from class com.sun.source.util.SimpleTreeVisitor

DEFAULT_VALUE

Constructor Summary

Constructors

Constructor and Description
NullnessPropagationTreeAnnotator(AnnotatedTypeFactory atypeFactory) Create the NullnessPropagationTreeAnnotator.

Method Summary

Modifier and Type	Method and Description
Void	visitBinary(BinaryTree node, AnnotatedTypeMirror type) When overriding this method, getAnnotatedType on the left and right operands should only be called when absolutely necessary.
Void	visitTypeCast(TypeCastTree node, AnnotatedTypeMirror type)
Void	visitUnary(UnaryTree node, AnnotatedTypeMirror type)

Methods inherited from class org.checkerframework.framework.type.treeannotator.PropagationTreeAnnotator

visitCompoundAssignment, visitNewArray

Methods inherited from class org.checkerframework.framework.type.treeannotator.TreeAnnotator

visitMethod

Methods inherited from class com.sun.source.util.SimpleTreeVisitor

defaultAction, visit, visit, visitAnnotatedType, visitAnnotation, visitArrayAccess, visitArrayType, visitAssert, visitAssignment, visitBlock, visitBreak, visitCase, visitCatch, visitClass, visitCompilationUnit, visitConditionalExpression, visitContinue, visitDoWhileLoop, visitEmptyStatement, visitEnhancedForLoop, visitErroneous, visitExports, visitExpressionStatement, visitForLoop, visitIdentifier, visitIf, visitImport, visitInstanceOf, visitIntersectionType, visitLabeledStatement, visitLambdaExpression, visitLiteral, visitMemberReference, visitMemberSelect, visitMethodInvocation, visitModifiers, visitModule, visitNewClass, visitOpens, visitOther, visitPackage, visitParameterizedType, visitParenthesized, visitPrimitiveType, visitProvides, visitRequires, visitReturn, visitSwitch, visitSynchronized, visitThrow, visitTry, visitTypeParameter, visitUnionType, visitUses, visitVariable, visitWhileLoop, visitWildcard

Methods inherited from class java.lang.Object

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

Constructor Detail

NullnessPropagationTreeAnnotator

public NullnessPropagationTreeAnnotator(AnnotatedTypeFactory atypeFactory)

Create the NullnessPropagationTreeAnnotator.

Method Detail

visitBinary

public Void visitBinary(BinaryTree node,
                        AnnotatedTypeMirror type)

Description copied from class: TreeAnnotator

When overriding this method, getAnnotatedType on the left and right operands should only be called when absolutely necessary. Otherwise, the checker will be very slow on heavily nested binary trees. (For example, a + b + c + d + e + f + g + h.)

If a checker's performance is still too slow, the types of binary trees could be computed in a subclass of CFTransfer. When computing the types in a transfer, look up the value in the store rather than the AnnotatedTypeFactory. Then this method should annotate binary trees with top so that the type applied in the transfer is always a subtype of the type the AnnotatedTypeFactory computes.

Specified by:

visitBinary in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitBinary in class PropagationTreeAnnotator

visitUnary

public Void visitUnary(UnaryTree node,
                       AnnotatedTypeMirror type)

Specified by:

visitUnary in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitUnary in class PropagationTreeAnnotator

visitTypeCast

public Void visitTypeCast(TypeCastTree node,
                          AnnotatedTypeMirror type)

Specified by:

visitTypeCast in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitTypeCast in class PropagationTreeAnnotator