Package it.unive.lisa.analysis.numeric

Class Parity

  • All Implemented Interfaces:
    it.unive.lisa.analysis.Lattice<Parity>, it.unive.lisa.analysis.nonrelational.NonRelationalDomain<Parity,​it.unive.lisa.symbolic.value.ValueExpression,​it.unive.lisa.analysis.nonrelational.value.ValueEnvironment<Parity>>, it.unive.lisa.analysis.nonrelational.NonRelationalElement<Parity,​it.unive.lisa.symbolic.value.ValueExpression,​it.unive.lisa.analysis.nonrelational.value.ValueEnvironment<Parity>>, it.unive.lisa.analysis.nonrelational.value.NonRelationalValueDomain<Parity>, it.unive.lisa.analysis.SemanticEvaluator
    public class Parity
extends it.unive.lisa.analysis.nonrelational.value.BaseNonRelationalValueDomain<Parity>
    The overflow-insensitive Parity abstract domain, tracking if a numeric value is even or odd, implemented as a BaseNonRelationalValueDomain, handling top and bottom values for the expression evaluation and bottom values for the expression satisfiability. Top and bottom cases for least upper bound, widening and less or equals operations are handled by BaseLattice in BaseLattice.lub(L), BaseLattice.widening(L) and BaseLattice.lessOrEqual(L) methods, respectively.

    • Field Summary

      • Fields inherited from interface it.unive.lisa.analysis.Lattice

        BOTTOM_REPR, BOTTOM_STRING, TOP_REPR, TOP_STRING

    • Constructor Summary

      Constructors 
      Constructor Description
      Parity()
      Builds the parity abstract domain, representing the top of the parity abstract domain.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      protected it.unive.lisa.analysis.nonrelational.value.ValueEnvironment<Parity> assumeBinaryExpression​(it.unive.lisa.analysis.nonrelational.value.ValueEnvironment<Parity> environment, it.unive.lisa.symbolic.value.operator.binary.BinaryOperator operator, it.unive.lisa.symbolic.value.ValueExpression left, it.unive.lisa.symbolic.value.ValueExpression right, it.unive.lisa.program.cfg.ProgramPoint pp)  
      Parity bottom()  
      boolean equals​(java.lang.Object obj)  
      protected Parity evalBinaryExpression​(it.unive.lisa.symbolic.value.operator.binary.BinaryOperator operator, Parity left, Parity right, it.unive.lisa.program.cfg.ProgramPoint pp)  
      protected Parity evalNonNullConstant​(it.unive.lisa.symbolic.value.Constant constant, it.unive.lisa.program.cfg.ProgramPoint pp)  
      protected Parity evalNullConstant​(it.unive.lisa.program.cfg.ProgramPoint pp)  
      protected Parity evalUnaryExpression​(it.unive.lisa.symbolic.value.operator.unary.UnaryOperator operator, Parity arg, it.unive.lisa.program.cfg.ProgramPoint pp)  
      int hashCode()  
      protected boolean lessOrEqualAux​(Parity other)  
      protected Parity lubAux​(Parity other)  
      it.unive.lisa.analysis.representation.DomainRepresentation representation()  
      Parity top()  
      protected Parity wideningAux​(Parity other)  

      • Methods inherited from class it.unive.lisa.analysis.nonrelational.value.BaseNonRelationalValueDomain

        assume, assumeTernaryExpression, assumeUnaryExpression, canProcess, eval, evalIdentifier, evalPushAny, evalTernaryExpression, evalTypeCast, evalTypeConv, glb, glbAux, satisfies, satisfiesAbstractValue, satisfiesBinaryExpression, satisfiesNonNullConstant, satisfiesNullConstant, satisfiesTernaryExpression, satisfiesUnaryExpression, toString, tracksIdentifiers

      • Methods inherited from class it.unive.lisa.analysis.BaseLattice

        lessOrEqual, lub, widening

      • Methods inherited from class java.lang.Object

        clone, finalize, getClass, notify, notifyAll, wait, wait, wait

      • Methods inherited from interface it.unive.lisa.analysis.Lattice

        isBottom, isTop, lessOrEqual, lub, widening

      • Methods inherited from interface it.unive.lisa.analysis.nonrelational.NonRelationalElement

        variable

    • Constructor Detail

      • Parity

        public Parity()
        Builds the parity abstract domain, representing the top of the parity abstract domain.

    • Method Detail

      • bottom

        public Parity bottom()

      • representation

        public it.unive.lisa.analysis.representation.DomainRepresentation representation()

      • evalNullConstant

        protected Parity evalNullConstant​(it.unive.lisa.program.cfg.ProgramPoint pp)
        Overrides:
        evalNullConstant in class it.unive.lisa.analysis.nonrelational.value.BaseNonRelationalValueDomain<Parity>

      • evalNonNullConstant

        protected Parity evalNonNullConstant​(it.unive.lisa.symbolic.value.Constant constant,
                                     it.unive.lisa.program.cfg.ProgramPoint pp)
        Overrides:
        evalNonNullConstant in class it.unive.lisa.analysis.nonrelational.value.BaseNonRelationalValueDomain<Parity>

      • evalUnaryExpression

        protected Parity evalUnaryExpression​(it.unive.lisa.symbolic.value.operator.unary.UnaryOperator operator,
                                     Parity arg,
                                     it.unive.lisa.program.cfg.ProgramPoint pp)
        Overrides:
        evalUnaryExpression in class it.unive.lisa.analysis.nonrelational.value.BaseNonRelationalValueDomain<Parity>

      • evalBinaryExpression

        protected Parity evalBinaryExpression​(it.unive.lisa.symbolic.value.operator.binary.BinaryOperator operator,
                                      Parity left,
                                      Parity right,
                                      it.unive.lisa.program.cfg.ProgramPoint pp)
        Overrides:
        evalBinaryExpression in class it.unive.lisa.analysis.nonrelational.value.BaseNonRelationalValueDomain<Parity>

      • lubAux

        protected Parity lubAux​(Parity other)
                 throws it.unive.lisa.analysis.SemanticException
        Specified by:
        lubAux in class it.unive.lisa.analysis.BaseLattice<Parity>
        Throws:
        it.unive.lisa.analysis.SemanticException

      • wideningAux

        protected Parity wideningAux​(Parity other)
                      throws it.unive.lisa.analysis.SemanticException
        Specified by:
        wideningAux in class it.unive.lisa.analysis.BaseLattice<Parity>
        Throws:
        it.unive.lisa.analysis.SemanticException

      • lessOrEqualAux

        protected boolean lessOrEqualAux​(Parity other)
                          throws it.unive.lisa.analysis.SemanticException
        Specified by:
        lessOrEqualAux in class it.unive.lisa.analysis.BaseLattice<Parity>
        Throws:
        it.unive.lisa.analysis.SemanticException

      • hashCode

        public int hashCode()
        Specified by:
        hashCode in class it.unive.lisa.analysis.BaseLattice<Parity>

      • equals

        public boolean equals​(java.lang.Object obj)
        Specified by:
        equals in class it.unive.lisa.analysis.BaseLattice<Parity>

      • assumeBinaryExpression

        protected it.unive.lisa.analysis.nonrelational.value.ValueEnvironment<Parity> assumeBinaryExpression​(it.unive.lisa.analysis.nonrelational.value.ValueEnvironment<Parity> environment,
                                                                                                     it.unive.lisa.symbolic.value.operator.binary.BinaryOperator operator,
                                                                                                     it.unive.lisa.symbolic.value.ValueExpression left,
                                                                                                     it.unive.lisa.symbolic.value.ValueExpression right,
                                                                                                     it.unive.lisa.program.cfg.ProgramPoint pp)
                                                                                              throws it.unive.lisa.analysis.SemanticException
        Overrides:
        assumeBinaryExpression in class it.unive.lisa.analysis.nonrelational.value.BaseNonRelationalValueDomain<Parity>
        Throws:
        it.unive.lisa.analysis.SemanticException