org.checkerframework.checker.fenum

Class FenumVisitor

java.lang.Object

com.sun.source.util.TreeScanner<R,P>

com.sun.source.util.TreePathScanner<R,P>

org.checkerframework.framework.source.SourceVisitor<Void,Void>

org.checkerframework.common.basetype.BaseTypeVisitor<FenumAnnotatedTypeFactory>

org.checkerframework.checker.fenum.FenumVisitor

All Implemented Interfaces:

TreeVisitor<Void,Void>

public class FenumVisitor
extends BaseTypeVisitor<FenumAnnotatedTypeFactory>

Nested Class Summary

Nested classes/interfaces inherited from class org.checkerframework.common.basetype.BaseTypeVisitor

BaseTypeVisitor.OverrideChecker

Field Summary

Fields inherited from class org.checkerframework.common.basetype.BaseTypeVisitor

atypeFactory, checker, contractsUtils, positions, TARGET, targetValueElement, typeValidator, visitorState

Fields inherited from class org.checkerframework.framework.source.SourceVisitor

elements, root, trees, treesWithSuppressWarnings, types

Constructor Summary

Constructors

Constructor and Description
FenumVisitor(BaseTypeChecker checker)

Method Summary

Modifier and Type	Method and Description
protected void	checkConstructorInvocation(AnnotatedTypeMirror.AnnotatedDeclaredType dt, AnnotatedTypeMirror.AnnotatedExecutableType constructor, NewClassTree src) Check that the (explicit) annotations on a new class tree are comparable to the result type of the constructor.
protected void	checkConstructorResult(AnnotatedTypeMirror.AnnotatedExecutableType constructorType, ExecutableElement constructorElement) Issue a warning if the result type of the constructor is not top.
protected Set<? extends AnnotationMirror>	getExceptionParameterLowerBoundAnnotations() Returns a set of AnnotationMirrors that is a lower bound for exception parameters.
boolean	isValidUse(AnnotatedTypeMirror.AnnotatedDeclaredType declarationType, AnnotatedTypeMirror.AnnotatedDeclaredType useType, Tree tree) Tests that the qualifiers present on the useType are valid qualifiers, given the qualifiers on the declaration of the type, declarationType.
Void	visitBinary(BinaryTree node, Void p)
Void	visitSwitch(SwitchTree node, Void p)

Methods inherited from class org.checkerframework.common.basetype.BaseTypeVisitor

checkAccess, checkArguments, checkArrayInitialization, checkConditionalPostcondition, checkContract, checkDefaultConstructor, checkExceptionParameter, checkExtendsImplements, checkFieldInvariantDeclarations, checkMethodInvocability, checkMethodReferenceAsOverride, checkOverride, checkOverride, checkPostcondition, checkPreconditions, checkPurity, checkSuperConstructorCall, checkThisConstructorCall, checkThisOrSuperConstructorCall, checkThrownExpression, checkTypeArguments, checkTypecastRedundancy, checkTypecastSafety, checkVarargs, commonAssignmentCheck, commonAssignmentCheck, commonAssignmentCheck, commonAssignmentCheckEndDiagnostic, commonAssignmentCheckEndDiagnostic, commonAssignmentCheckStartDiagnostic, createOverrideChecker, createTypeFactory, createTypeValidator, enclosingMemberSelect, enclosingStatement, getThrowUpperBoundAnnotations, getTypeFactory, isAccessAllowed, isTypeCastSafe, isValidUse, isValidUse, processClassTree, reportMethodInvocabilityError, reportPurityErrors, scan, setRoot, shouldSkipUses, skipReceiverSubtypeCheck, testTypevarContainment, typeCheckVectorCopyIntoArgument, validateType, validateTypeOf, visitAnnotation, visitArrayAccess, visitAssignment, visitCatch, visitClass, visitCompilationUnit, visitCompoundAssignment, visitConditionalExpression, visitEnhancedForLoop, visitIdentifier, visitInstanceOf, visitLambdaExpression, visitMemberReference, visitMethod, visitMethodInvocation, visitNewArray, visitNewClass, visitReturn, visitThrow, visitTypeCast, visitTypeParameter, visitUnary, visitVariable

Methods inherited from class org.checkerframework.framework.source.SourceVisitor

visit

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

getCurrentPath, scan

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

reduce, scan, visitAnnotatedType, visitArrayType, visitAssert, visitBlock, visitBreak, visitCase, visitContinue, visitDoWhileLoop, visitEmptyStatement, visitErroneous, visitExports, visitExpressionStatement, visitForLoop, visitIf, visitImport, visitIntersectionType, visitLabeledStatement, visitLiteral, visitMemberSelect, visitModifiers, visitModule, visitOpens, visitOther, visitPackage, visitParameterizedType, visitParenthesized, visitPrimitiveType, visitProvides, visitRequires, visitSynchronized, visitTry, visitUnionType, visitUses, visitWhileLoop, visitWildcard

Methods inherited from class java.lang.Object

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

Constructor Detail

FenumVisitor

public FenumVisitor(BaseTypeChecker checker)

Method Detail

visitBinary

public Void visitBinary(BinaryTree node,
                        Void p)

Specified by:

visitBinary in interface TreeVisitor<Void,Void>

Overrides:

visitBinary in class TreeScanner<Void,Void>

visitSwitch

public Void visitSwitch(SwitchTree node,
                        Void p)

Specified by:

visitSwitch in interface TreeVisitor<Void,Void>

Overrides:

visitSwitch in class TreeScanner<Void,Void>

checkConstructorInvocation

protected void checkConstructorInvocation(AnnotatedTypeMirror.AnnotatedDeclaredType dt,
                                          AnnotatedTypeMirror.AnnotatedExecutableType constructor,
                                          NewClassTree src)

Description copied from class: BaseTypeVisitor

Check that the (explicit) annotations on a new class tree are comparable to the result type of the constructor. Issue an error if not.

Issue a warning if the annotations on the constructor invocation is a subtype of the constructor result type. This is equivalent to down-casting.

Overrides:

checkConstructorInvocation in class BaseTypeVisitor<FenumAnnotatedTypeFactory>

checkConstructorResult

protected void checkConstructorResult(AnnotatedTypeMirror.AnnotatedExecutableType constructorType,
                                      ExecutableElement constructorElement)

Description copied from class: BaseTypeVisitor

Issue a warning if the result type of the constructor is not top. If it is a supertype of the class, then a type.invalid.conflicting.annos error will also be issued by BaseTypeVisitor.isValidUse(AnnotatedTypeMirror.AnnotatedDeclaredType,AnnotatedTypeMirror.AnnotatedDeclaredType,Tree).

Overrides:

checkConstructorResult in class BaseTypeVisitor<FenumAnnotatedTypeFactory>

Parameters:

constructorType - AnnotatedExecutableType for the constructor

constructorElement - element that declares the constructor

getExceptionParameterLowerBoundAnnotations

protected Set<? extends AnnotationMirror> getExceptionParameterLowerBoundAnnotations()

Description copied from class: BaseTypeVisitor

Returns a set of AnnotationMirrors that is a lower bound for exception parameters.

Note: by default this method is called by BaseTypeVisitor.getThrowUpperBoundAnnotations(), so that this annotation is enforced.

(Default is top)

Overrides:

getExceptionParameterLowerBoundAnnotations in class BaseTypeVisitor<FenumAnnotatedTypeFactory>

Returns:

set of annotation mirrors, one per hierarchy, that from a lower bound of annotations that can be written on an exception parameter

isValidUse

public boolean isValidUse(AnnotatedTypeMirror.AnnotatedDeclaredType declarationType,
                          AnnotatedTypeMirror.AnnotatedDeclaredType useType,
                          Tree tree)

Description copied from class: BaseTypeVisitor

Tests that the qualifiers present on the useType are valid qualifiers, given the qualifiers on the declaration of the type, declarationType.

The check is shallow, as it does not descend into generic or array types (i.e. only performing the validity check on the raw type or outermost array dimension). BaseTypeVisitor.validateTypeOf(Tree) would call this for each type argument or array dimension separately.

In most cases, useType simply needs to be a subtype of declarationType. If a type system makes exceptions to this rule, its implementation should override this method.

Overrides:

isValidUse in class BaseTypeVisitor<FenumAnnotatedTypeFactory>

Parameters:

declarationType - the type of the class (TypeElement)

useType - the use of the class (instance type)

tree - the tree where the type is used

Returns:

true if the useType is a valid use of elemType