Package org.checkerframework.checker.resourceleak

Class ResourceLeakTransfer

java.lang.Object

org.checkerframework.dataflow.cfg.node.AbstractNodeVisitor<TransferResult<V,S>,TransferInput<V,S>>

org.checkerframework.framework.flow.CFAbstractTransfer<AccumulationValue,AccumulationStore,AccumulationTransfer>

org.checkerframework.common.accumulation.AccumulationTransfer

org.checkerframework.checker.calledmethods.CalledMethodsTransfer

org.checkerframework.checker.resourceleak.ResourceLeakTransfer

All Implemented Interfaces:

ForwardTransferFunction<AccumulationValue,AccumulationStore>, TransferFunction<AccumulationValue,AccumulationStore>, NodeVisitor<TransferResult<AccumulationValue,AccumulationStore>,TransferInput<AccumulationValue,AccumulationStore>>

public class ResourceLeakTransfer
extends CalledMethodsTransfer

The transfer function for the resource-leak extension to the called-methods type system.

Field Summary

Fields inherited from class org.checkerframework.common.accumulation.AccumulationTransfer

atypeFactory

Fields inherited from class org.checkerframework.framework.flow.CFAbstractTransfer

analysis, sequentialSemantics

Constructor Summary

Constructors

Constructor	Description
ResourceLeakTransfer(ResourceLeakAnalysis analysis)	Create a new resource leak transfer function.

Method Summary

Modifier and Type	Method	Description
void	updateStoreWithTempVar(TransferResult<AccumulationValue,AccumulationStore> result, Node node)	This method either creates or looks up the temp var t for node, and then updates the store to give t the same type as node.
TransferResult<AccumulationValue,AccumulationStore>	visitMethodInvocation(MethodInvocationNode node, TransferInput<AccumulationValue,AccumulationStore> input)
TransferResult<AccumulationValue,AccumulationStore>	visitObjectCreation(ObjectCreationNode node, TransferInput<AccumulationValue,AccumulationStore> input)
TransferResult<AccumulationValue,AccumulationStore>	visitSwitchExpressionNode(SwitchExpressionNode node, TransferInput<AccumulationValue,AccumulationStore> input)
TransferResult<AccumulationValue,AccumulationStore>	visitTernaryExpression(TernaryExpressionNode node, TransferInput<AccumulationValue,AccumulationStore> input)

Methods inherited from class org.checkerframework.checker.calledmethods.CalledMethodsTransfer

accumulate, isWpiEnabledForRLC, shouldPerformWholeProgramInference, shouldPerformWholeProgramInference

Methods inherited from class org.checkerframework.framework.flow.CFAbstractTransfer

addInformationFromPreconditions, createTransferResult, finishValue, finishValue, getNarrowedValue, getValueFromFactory, getWidenedValue, initialStore, insertIntoStores, isNotFullyInitializedReceiver, moreSpecificValue, processCommonAssignment, processConditionalPostconditions, processPostconditions, recreateTransferResult, setFixedInitialStore, splitAssignments, strengthenAnnotationOfEqualTo, usesSequentialSemantics, visitArrayAccess, visitAssignment, visitCase, visitClassName, visitConditionalNot, visitDeconstructorPattern, visitEqualTo, visitExpressionStatement, visitFieldAccess, visitInstanceOf, visitLambdaResultExpression, visitLocalVariable, visitNarrowingConversion, visitNode, visitNotEqual, visitReturn, visitStringConversion, visitThis, visitVariableDeclaration, visitWideningConversion

Methods inherited from class org.checkerframework.dataflow.cfg.node.AbstractNodeVisitor

visitArrayCreation, visitArrayType, visitAssertionError, visitBitwiseAnd, visitBitwiseComplement, visitBitwiseOr, visitBitwiseXor, visitBooleanLiteral, visitCharacterLiteral, visitClassDeclaration, visitConditionalAnd, visitConditionalOr, visitDoubleLiteral, visitExplicitThis, visitFloatingDivision, visitFloatingRemainder, visitFloatLiteral, visitGreaterThan, visitGreaterThanOrEqual, visitImplicitThis, visitIntegerDivision, visitIntegerLiteral, visitIntegerRemainder, visitLeftShift, visitLessThan, visitLessThanOrEqual, visitLongLiteral, visitMarker, visitMemberReference, visitMethodAccess, visitNullChk, visitNullLiteral, visitNumericalAddition, visitNumericalMinus, visitNumericalMultiplication, visitNumericalPlus, visitNumericalSubtraction, visitPackageName, visitParameterizedType, visitPrimitiveType, visitShortLiteral, visitSignedRightShift, visitStringConcatenate, visitStringLiteral, visitSuper, visitSynchronized, visitThrow, visitTypeCast, visitUnsignedRightShift, visitValueLiteral

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.checkerframework.dataflow.cfg.node.NodeVisitor

visitArrayCreation, visitArrayType, visitAssertionError, visitBitwiseAnd, visitBitwiseComplement, visitBitwiseOr, visitBitwiseXor, visitBooleanLiteral, visitCharacterLiteral, visitClassDeclaration, visitConditionalAnd, visitConditionalOr, visitDoubleLiteral, visitExplicitThis, visitFloatingDivision, visitFloatingRemainder, visitFloatLiteral, visitGreaterThan, visitGreaterThanOrEqual, visitImplicitThis, visitIntegerDivision, visitIntegerLiteral, visitIntegerRemainder, visitLeftShift, visitLessThan, visitLessThanOrEqual, visitLongLiteral, visitMarker, visitMemberReference, visitMethodAccess, visitNullChk, visitNullLiteral, visitNumericalAddition, visitNumericalMinus, visitNumericalMultiplication, visitNumericalPlus, visitNumericalSubtraction, visitPackageName, visitParameterizedType, visitPrimitiveType, visitShortLiteral, visitSignedRightShift, visitStringConcatenate, visitStringLiteral, visitSuper, visitSynchronized, visitThrow, visitTypeCast, visitUnsignedRightShift

Constructor Details

ResourceLeakTransfer

public ResourceLeakTransfer(ResourceLeakAnalysis analysis)

Create a new resource leak transfer function.

Parameters:

analysis - the analysis. Its type factory must be a ResourceLeakAnnotatedTypeFactory.

Method Details

visitTernaryExpression

public TransferResult<AccumulationValue,AccumulationStore> visitTernaryExpression(TernaryExpressionNode node,
 TransferInput<AccumulationValue,AccumulationStore> input)

Specified by:

visitTernaryExpression in interface NodeVisitor<TransferResult<AccumulationValue,AccumulationStore>,TransferInput<AccumulationValue,AccumulationStore>>

Overrides:

visitTernaryExpression in class CFAbstractTransfer<AccumulationValue,AccumulationStore,AccumulationTransfer>

visitSwitchExpressionNode

public TransferResult<AccumulationValue,AccumulationStore> visitSwitchExpressionNode(SwitchExpressionNode node,
 TransferInput<AccumulationValue,AccumulationStore> input)

Specified by:

visitSwitchExpressionNode in interface NodeVisitor<TransferResult<AccumulationValue,AccumulationStore>,TransferInput<AccumulationValue,AccumulationStore>>

Overrides:

visitSwitchExpressionNode in class CFAbstractTransfer<AccumulationValue,AccumulationStore,AccumulationTransfer>

visitMethodInvocation

public TransferResult<AccumulationValue,AccumulationStore> visitMethodInvocation(MethodInvocationNode node,
 TransferInput<AccumulationValue,AccumulationStore> input)

Specified by:

visitMethodInvocation in interface NodeVisitor<TransferResult<AccumulationValue,AccumulationStore>,TransferInput<AccumulationValue,AccumulationStore>>

Overrides:

visitMethodInvocation in class CalledMethodsTransfer

visitObjectCreation

public TransferResult<AccumulationValue,AccumulationStore> visitObjectCreation(ObjectCreationNode node,
 TransferInput<AccumulationValue,AccumulationStore> input)

Specified by:

visitObjectCreation in interface NodeVisitor<TransferResult<AccumulationValue,AccumulationStore>,TransferInput<AccumulationValue,AccumulationStore>>

Overrides:

visitObjectCreation in class CFAbstractTransfer<AccumulationValue,AccumulationStore,AccumulationTransfer>

updateStoreWithTempVar

public void updateStoreWithTempVar(TransferResult<AccumulationValue,AccumulationStore> result,
 Node node)

This method either creates or looks up the temp var t for node, and then updates the store to give t the same type as node. Temporary variables are supported for expressions throughout this checker (and the Must Call Checker) to enable refinement of their types. See the documentation of MustCallConsistencyAnalyzer for more details.

Parameters:

node - the node to be assigned to a temporary variable

result - the transfer result containing the store to be modified