checkers.linear
Class LinearVisitor

java.lang.Object
  extended by com.sun.source.util.TreeScanner<R,P>
      extended by com.sun.source.util.TreePathScanner<R,P>
          extended by checkers.source.SourceVisitor<R,P>
              extended by checkers.basetype.BaseTypeVisitor<Void,Void>
                  extended by checkers.linear.LinearVisitor
All Implemented Interfaces:
TreeVisitor<Void,Void>

public class LinearVisitor
extends BaseTypeVisitor<Void,Void>

A type-checking visitor for the Linear type system. The visitor reports an error ("unsafe.use") for any use of a reference of Unusable type. In other words, it reports an error for any Linear references that is used more than once, or is used after it has been "used up".

See Also:
LinearChecker

Nested Class Summary
Modifier and Type Class and Description
 
Nested classes/interfaces inherited from class checkers.basetype.BaseTypeVisitor
BaseTypeVisitor.TypeValidator
 
Field Summary
Modifier and Type Field and Description
 
Fields inherited from class checkers.basetype.BaseTypeVisitor
annoFactory, annoTypes, checker, plainFactory, visitorState
 
Fields inherited from class checkers.source.SourceVisitor
atypeFactory, elements, root, trees, types
 
Constructor Summary
Constructor and Description
LinearVisitor(LinearChecker checker, CompilationUnitTree root)
           
 
Method Summary
Modifier and Type Method and Description
protected  boolean checkMethodInvocability(AnnotatedTypeMirror.AnnotatedExecutableType method, MethodInvocationTree node)
          Linear Checker does not contain a rule for method invocation.
 Void visitIdentifier(IdentifierTree node, Void p)
           
 Void visitMemberSelect(MemberSelectTree node, Void p)
           
 
Methods inherited from class checkers.basetype.BaseTypeVisitor
checkAccess, checkArguments, checkArrayInitialization, checkAssignability, checkConstructorInvocation, checkDefaultConstructor, checkOverride, checkTypeArguments, checkTypecastRedundancy, checkTypecastSafety, commonAssignmentCheck, commonAssignmentCheck, commonAssignmentCheck, createTypeValidator, enclosingMemberSelect, enclosingStatement, isAccessAllowed, isVectorCopyInto, scan, shouldSkip, shouldSkip, typeCheckVectorCopyIntoArgument, validateTypeOf, visitAnnotation, visitAssignment, visitClass, visitCompilationUnit, visitCompoundAssignment, visitEnhancedForLoop, visitInstanceOf, visitMethod, visitMethodInvocation, visitNewArray, visitNewClass, visitParameterizedType, visitReturn, visitTypeCast, visitUnary, visitVariable
 
Methods inherited from class com.sun.source.util.TreePathScanner
getCurrentPath, scan
 
Methods inherited from class com.sun.source.util.TreeScanner
reduce, scan, visitAnnotatedType, visitArrayAccess, visitArrayType, visitAssert, visitBinary, visitBlock, visitBreak, visitCase, visitCatch, visitConditionalExpression, visitContinue, visitDisjointType, visitDoWhileLoop, visitEmptyStatement, visitErroneous, visitExpressionStatement, visitForLoop, visitIf, visitImport, visitLabeledStatement, visitLiteral, visitModifiers, visitOther, visitParenthesized, visitPrimitiveType, visitSwitch, visitSynchronized, visitThrow, visitTry, visitTypeParameter, visitWhileLoop, visitWildcard
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

LinearVisitor

public LinearVisitor(LinearChecker checker,
                     CompilationUnitTree root)
Method Detail

visitIdentifier

public Void visitIdentifier(IdentifierTree node,
                            Void p)
Specified by:
visitIdentifier in interface TreeVisitor<Void,Void>
Overrides:
visitIdentifier in class BaseTypeVisitor<Void,Void>

visitMemberSelect

public Void visitMemberSelect(MemberSelectTree node,
                              Void p)
Specified by:
visitMemberSelect in interface TreeVisitor<Void,Void>
Overrides:
visitMemberSelect in class TreeScanner<Void,Void>

checkMethodInvocability

protected boolean checkMethodInvocability(AnnotatedTypeMirror.AnnotatedExecutableType method,
                                          MethodInvocationTree node)
Linear Checker does not contain a rule for method invocation.

Overrides:
checkMethodInvocability in class BaseTypeVisitor<Void,Void>
Parameters:
method - the type of the invoked method
node - the method invocation node
Returns:
true iff the call of 'node' is a valid call