public virtual Mutator Cast(SortMapping target)
{
if (target == GetSortMapping())
{
return(this);
}
throw new SymbolicExplorationException("Cast from " + GetSortMapping() + " to " + target + " undefined");
}
// The following functions lift functions on Z3 expressions to functions on Mutators
Func <Mutator, Mutator> LiftZ3Op1 <TOp1Expr, TReturnExpr>(Func <TOp1Expr, TReturnExpr> z3Constructor, Func <TReturnExpr, Mutator> mutatorConstructor,
SortMapping op1Mapping)
where TOp1Expr : Expr
where TReturnExpr : Expr
{
return((op1) =>
{
var v1 = op1.Cast(op1Mapping);
try
{
return mutatorConstructor(z3Constructor((TOp1Expr)v1.CreateUpdate()));
}
catch (InvalidCastException)
{
throw new SymbolicExplorationException("SortMapping does not match sort of Z3 constructor");
}
});
}
public override Mutator Cast(SortMapping target)
{
var intTarget = target as IntSortMapping;
if (intTarget != null)
{
if (intTarget == _sortMapping)
{
return(this);
}
else if (intTarget.Sort.Size > Size)
{
return(new IntMutator(intTarget,
IsSigned ? Ctx.MkSignExt(intTarget.Sort.Size - Size, Value) : Ctx.MkZeroExt(intTarget.Sort.Size - Size, Value)));
}
else
{
return(new IntMutator(intTarget, Ctx.MkExtract(intTarget.Sort.Size - 1, 0, Value)));
}
}
return(base.Cast(target));
}
public PureExplorationState(PureExplorationState toClone)
: base(toClone)
{
_returnType = toClone._returnType;
}
public PureExplorationState(CompilationInfo info, BasicBlock programLocation, SortMapping returnType, IDictionary <ISymbol, Mutator> parameters, Expr[] boundVariables = null)
: base(info, programLocation, parameters, boundVariables == null ? new Expr[0] : boundVariables)
{
_returnType = returnType;
}