Package org.sosy_lab.java_smt.api.visitors

Class DefaultBooleanFormulaVisitor<R>

java.lang.Object

org.sosy_lab.java_smt.api.visitors.DefaultBooleanFormulaVisitor<R>

Type Parameters:

R - Return type for each traversal operation.

All Implemented Interfaces:

BooleanFormulaVisitor<R>

public abstract class DefaultBooleanFormulaVisitor<R>
extends Object
implements BooleanFormulaVisitor<R>

A formula visitor which allows for the default implementation.

Constructor Summary

Constructors

Constructor	Description
DefaultBooleanFormulaVisitor()

Method Summary

Modifier and Type	Method	Description
R	visitAnd(List<BooleanFormula> pOperands)	Visit an AND-expression with an arbitrary number of boolean arguments.
R	visitAtom(BooleanFormula pAtom, FunctionDeclaration<BooleanFormula> decl)	Visit an SMT atom.
R	visitBoundVar(BooleanFormula var, int deBruijnIdx)	Visit a boolean variable bound by a quantifier.
R	visitConstant(boolean value)	Visit a constant with a given value.
protected abstract R	visitDefault()
R	visitEquivalence(BooleanFormula pOperand1, BooleanFormula pOperand2)	Visit an equivalence between two formulas of boolean sort: operand1 = operand2.
R	visitIfThenElse(BooleanFormula pCondition, BooleanFormula pThenFormula, BooleanFormula pElseFormula)	Visit an if-then-else expression.
R	visitImplication(BooleanFormula pOperand1, BooleanFormula pOperand2)	Visit an implication.
R	visitNot(BooleanFormula pOperand)	Visit a NOT-expression.
R	visitOr(List<BooleanFormula> pOperands)	Visit an OR-expression with an arbitrary number of boolean arguments.
R	visitQuantifier(QuantifiedFormulaManager.Quantifier quantifier, BooleanFormula quantifiedAST, List<Formula> boundVars, BooleanFormula body)	Visit a quantifier: forall- or exists-.
R	visitXor(BooleanFormula operand1, BooleanFormula operand2)	Visit a XOR-expression.

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultBooleanFormulaVisitor

public DefaultBooleanFormulaVisitor()

Method Details

visitDefault

protected abstract R visitDefault()

visitConstant

public R visitConstant(boolean value)

Description copied from interface: BooleanFormulaVisitor

Visit a constant with a given value.

Specified by:

visitConstant in interface BooleanFormulaVisitor<R>

See Also:

• BooleanFormulaManager.makeBoolean(boolean)

visitBoundVar

public R visitBoundVar(BooleanFormula var,
 int deBruijnIdx)

Description copied from interface: BooleanFormulaVisitor

Visit a boolean variable bound by a quantifier.

Specified by:

visitBoundVar in interface BooleanFormulaVisitor<R>

visitAtom

public R visitAtom(BooleanFormula pAtom,
 FunctionDeclaration<BooleanFormula> decl)

Description copied from interface: BooleanFormulaVisitor

Visit an SMT atom. An atom can be a theory expression, constant, or a variable.

This is anything with a boolean sort which is not covered by the cases above.

Specified by:

visitAtom in interface BooleanFormulaVisitor<R>

visitNot

public R visitNot(BooleanFormula pOperand)

Description copied from interface: BooleanFormulaVisitor

Visit a NOT-expression.

Specified by:

visitNot in interface BooleanFormulaVisitor<R>

Parameters:

pOperand - Negated term.

See Also:

• BooleanFormulaManager.not(org.sosy_lab.java_smt.api.BooleanFormula)

visitAnd

public R visitAnd(List<BooleanFormula> pOperands)

Description copied from interface: BooleanFormulaVisitor

Visit an AND-expression with an arbitrary number of boolean arguments.

An AND-expression with zero arguments is equisatisfiable to 'TRUE'. An AND-expression with one argument is equal to the argument itself. In all other cases, default boolean logic applies.

Specified by:

visitAnd in interface BooleanFormulaVisitor<R>

See Also:

• BooleanFormulaManager.and(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitOr

public R visitOr(List<BooleanFormula> pOperands)

Description copied from interface: BooleanFormulaVisitor

Visit an OR-expression with an arbitrary number of boolean arguments.

An OR-expression with zero arguments is equisatisfiable to 'TRUE'. An OR-expression with one argument is equal to the argument itself. In all other cases, default boolean logic applies.

Specified by:

visitOr in interface BooleanFormulaVisitor<R>

See Also:

• BooleanFormulaManager.or(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitXor

public R visitXor(BooleanFormula operand1,
 BooleanFormula operand2)

Description copied from interface: BooleanFormulaVisitor

Visit a XOR-expression.

Specified by:

visitXor in interface BooleanFormulaVisitor<R>

See Also:

• BooleanFormulaManager.xor(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitEquivalence

public R visitEquivalence(BooleanFormula pOperand1,
 BooleanFormula pOperand2)

Description copied from interface: BooleanFormulaVisitor

Visit an equivalence between two formulas of boolean sort: operand1 = operand2.

Specified by:

visitEquivalence in interface BooleanFormulaVisitor<R>

See Also:

• BooleanFormulaManager.equivalence(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitImplication

public R visitImplication(BooleanFormula pOperand1,
 BooleanFormula pOperand2)

Description copied from interface: BooleanFormulaVisitor

Visit an implication.

Specified by:

visitImplication in interface BooleanFormulaVisitor<R>

See Also:

• BooleanFormulaManager.implication(org.sosy_lab.java_smt.api.BooleanFormula, org.sosy_lab.java_smt.api.BooleanFormula)

visitIfThenElse

public R visitIfThenElse(BooleanFormula pCondition,
 BooleanFormula pThenFormula,
 BooleanFormula pElseFormula)

Description copied from interface: BooleanFormulaVisitor

Visit an if-then-else expression.

Specified by:

visitIfThenElse in interface BooleanFormulaVisitor<R>

See Also:

• BooleanFormulaManager.ifThenElse(org.sosy_lab.java_smt.api.BooleanFormula, T, T)

visitQuantifier

public R visitQuantifier(QuantifiedFormulaManager.Quantifier quantifier,
 BooleanFormula quantifiedAST,
 List<Formula> boundVars,
 BooleanFormula body)

Description copied from interface: BooleanFormulaVisitor

Visit a quantifier: forall- or exists-.

Specified by:

visitQuantifier in interface BooleanFormulaVisitor<R>

Parameters:

quantifier - Quantifier type: FORALL- or EXISTS-

quantifiedAST - AST of the quantified node. Provided because it is difficult to re-create from the parameters.

boundVars - Variables bound by this quantifier.

body - Body of the quantified expression.

See Also:

• QuantifiedFormulaManager.mkQuantifier(org.sosy_lab.java_smt.api.QuantifiedFormulaManager.Quantifier, java.util.List<? extends org.sosy_lab.java_smt.api.Formula>, org.sosy_lab.java_smt.api.BooleanFormula)
• QuantifiedFormulaManager.forall(java.util.List<? extends org.sosy_lab.java_smt.api.Formula>, org.sosy_lab.java_smt.api.BooleanFormula)
• QuantifiedFormulaManager.exists(java.util.List<? extends org.sosy_lab.java_smt.api.Formula>, org.sosy_lab.java_smt.api.BooleanFormula)