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).
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Field Summary
Fields inherited from class org.checkerframework.framework.type.treeannotator.TreeAnnotator
atypeFactory
Fields inherited from class com.sun.source.util.SimpleTreeVisitor
DEFAULT_VALUE
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Constructor Summary
ConstructorsConstructorDescriptionNullnessPropagationTreeAnnotator
(AnnotatedTypeFactory atypeFactory) Create the NullnessPropagationTreeAnnotator. -
Method Summary
Modifier and TypeMethodDescriptionvisitBinary
(BinaryTree tree, AnnotatedTypeMirror type) When overriding this method, getAnnotatedType on the left and right operands should only be called when absolutely necessary.visitTypeCast
(TypeCastTree tree, AnnotatedTypeMirror type) visitUnary
(UnaryTree tree, AnnotatedTypeMirror type) Methods inherited from class org.checkerframework.framework.type.treeannotator.PropagationTreeAnnotator
visitCompoundAssignment, visitNewArray
Methods inherited from class org.checkerframework.framework.type.treeannotator.TreeAnnotator
log, visitMethod
Methods inherited from class com.sun.source.util.SimpleTreeVisitor
defaultAction, visit, visit, visitAnnotatedType, visitAnnotation, visitArrayAccess, visitArrayType, visitAssert, visitAssignment, visitBindingPattern, visitBlock, visitBreak, visitCase, visitCatch, visitClass, visitCompilationUnit, visitConditionalExpression, visitContinue, visitDefaultCaseLabel, visitDoWhileLoop, visitEmptyStatement, visitEnhancedForLoop, visitErroneous, visitExports, visitExpressionStatement, visitForLoop, visitGuardedPattern, visitIdentifier, visitIf, visitImport, visitInstanceOf, visitIntersectionType, visitLabeledStatement, visitLambdaExpression, visitLiteral, visitMemberReference, visitMemberSelect, visitMethodInvocation, visitModifiers, visitModule, visitNewClass, visitOpens, visitOther, visitPackage, visitParameterizedType, visitParenthesized, visitParenthesizedPattern, visitPrimitiveType, visitProvides, visitRequires, visitReturn, visitSwitch, visitSwitchExpression, visitSynchronized, visitThrow, visitTry, visitTypeParameter, visitUnionType, visitUses, visitVariable, visitWhileLoop, visitWildcard, visitYield
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Constructor Details
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NullnessPropagationTreeAnnotator
Create the NullnessPropagationTreeAnnotator.
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Method Details
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visitBinary
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.)One approach is to perform work in this method only if
type.hasPrimaryAnnotationInHierarchy(...)
returns false.If a checker's performance is still too slow:
- Compute the types of binary trees in a subclass of
CFTransfer
; look up the value in the store rather than the AnnotatedTypeFactory. - This method (
TreeAnnotator.visitBinary
) 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 interfaceTreeVisitor<Void,
AnnotatedTypeMirror> - Overrides:
visitBinary
in classPropagationTreeAnnotator
- Compute the types of binary trees in a subclass of
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visitUnary
- Specified by:
visitUnary
in interfaceTreeVisitor<Void,
AnnotatedTypeMirror> - Overrides:
visitUnary
in classPropagationTreeAnnotator
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visitTypeCast
- Specified by:
visitTypeCast
in interfaceTreeVisitor<Void,
AnnotatedTypeMirror> - Overrides:
visitTypeCast
in classPropagationTreeAnnotator
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