org.checkerframework.checker.nullness

Class NullnessAnnotatedTypeFactory.NullnessTreeAnnotator

java.lang.Object

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

org.checkerframework.framework.type.treeannotator.TreeAnnotator

org.checkerframework.checker.nullness.NullnessAnnotatedTypeFactory.NullnessTreeAnnotator

All Implemented Interfaces:

TreeVisitor<Void,AnnotatedTypeMirror>

Enclosing class:

NullnessAnnotatedTypeFactory

protected class NullnessAnnotatedTypeFactory.NullnessTreeAnnotator
extends TreeAnnotator

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
NullnessTreeAnnotator(NullnessAnnotatedTypeFactory atypeFactory)

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	visitCompoundAssignment(CompoundAssignmentTree node, AnnotatedTypeMirror type)
Void	visitIdentifier(IdentifierTree node, AnnotatedTypeMirror type)
Void	visitMemberSelect(MemberSelectTree node, AnnotatedTypeMirror type)
Void	visitNewArray(NewArrayTree node, AnnotatedTypeMirror type)
Void	visitNewClass(NewClassTree node, AnnotatedTypeMirror type)
Void	visitUnary(UnaryTree node, AnnotatedTypeMirror type)
Void	visitVariable(VariableTree node, AnnotatedTypeMirror type)

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, visitExpressionStatement, visitForLoop, visitIf, visitImport, visitInstanceOf, visitIntersectionType, visitLabeledStatement, visitLambdaExpression, visitLiteral, visitMemberReference, visitMethodInvocation, visitModifiers, visitOther, visitParameterizedType, visitParenthesized, visitPrimitiveType, visitReturn, visitSwitch, visitSynchronized, visitThrow, visitTry, visitTypeCast, visitTypeParameter, visitUnionType, visitWhileLoop, visitWildcard

Methods inherited from class java.lang.Object

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

Constructor Detail

NullnessTreeAnnotator

public NullnessTreeAnnotator(NullnessAnnotatedTypeFactory atypeFactory)

Method Detail

visitMemberSelect

public Void visitMemberSelect(MemberSelectTree node,
                              AnnotatedTypeMirror type)

Specified by:

visitMemberSelect in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitMemberSelect in class SimpleTreeVisitor<Void,AnnotatedTypeMirror>

visitVariable

public Void visitVariable(VariableTree node,
                          AnnotatedTypeMirror type)

Specified by:

visitVariable in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitVariable in class SimpleTreeVisitor<Void,AnnotatedTypeMirror>

visitIdentifier

public Void visitIdentifier(IdentifierTree node,
                            AnnotatedTypeMirror type)

Specified by:

visitIdentifier in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitIdentifier in class SimpleTreeVisitor<Void,AnnotatedTypeMirror>

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 TreeAnnotator

visitCompoundAssignment

public Void visitCompoundAssignment(CompoundAssignmentTree node,
                                    AnnotatedTypeMirror type)

Specified by:

visitCompoundAssignment in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitCompoundAssignment in class SimpleTreeVisitor<Void,AnnotatedTypeMirror>

visitUnary

public Void visitUnary(UnaryTree node,
                       AnnotatedTypeMirror type)

Specified by:

visitUnary in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitUnary in class SimpleTreeVisitor<Void,AnnotatedTypeMirror>

visitNewClass

public Void visitNewClass(NewClassTree node,
                          AnnotatedTypeMirror type)

Specified by:

visitNewClass in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitNewClass in class SimpleTreeVisitor<Void,AnnotatedTypeMirror>

visitNewArray

public Void visitNewArray(NewArrayTree node,
                          AnnotatedTypeMirror type)

Specified by:

visitNewArray in interface TreeVisitor<Void,AnnotatedTypeMirror>

Overrides:

visitNewArray in class SimpleTreeVisitor<Void,AnnotatedTypeMirror>