public SubPolyhedraAnalysisForUnsafeCode(
string methodName,
IMethodDriver <APC, Local, Parameter, Method, Field, Property, Type, Attribute, Assembly, ExternalExpression, Variable, ILogOptions> mdriver,
List <Analyzers.Unsafe.UnsafeOptions> options,
IOverallUnsafeStatistics overallStats
)
: base(methodName, mdriver, options, overallStats)
{
this.encoder = BoxedExpressionEncoder.Encoder(this.DecoderForMetaData, this.Context);
}
private ExpressionManager <BoxedVariable <Variable>, BoxedExpression> GetExpressionManager()
{
var valuedDecoder = new AnalysisWrapper.TypeBindings <Local, Parameter, Method, Field, Property, Event, Type, Attribute, Assembly, Expression, Variable> .ValueExpDecoder(this.Mdriver.Context, this.Mdriver.MetaDataDecoder);
var expDecoder = BoxedExpressionDecoder <Variable> .Decoder(valuedDecoder, (object o) => ExpressionType.Unknown);
var expEncoder = BoxedExpressionEncoder <Variable> .Encoder(this.Mdriver.MetaDataDecoder, this.Mdriver.Context);
var expManager = new ExpressionManagerWithEncoder <BoxedVariable <Variable>, BoxedExpression>(this.timeout, expDecoder, expEncoder);
return(expManager);
}
/// <summary>
/// Given the length of a pointer that is null in one of the two branches of a join, add it to the domain all the contraints
/// of the length that are on the other branch of the join
/// </summary>
/// <param name="pc">The pc at the join point</param>
/// <param name="length">The length of the null pointer</param>
/// <param name="result">The state on which we have to add the constraints</param>
private void RefineWithNullPointerInformation(APC pc, BoxedExpression length, LinearEqualitiesForUnsafeCode thiscloned, LinearEqualitiesForUnsafeCode prevcloned, ref LinearEqualitiesForUnsafeCode result)
{
Set <Polynomial <BoxedExpression> > eq = thiscloned.EqualsTo(length);
foreach (Polynomial <BoxedExpression> pol in eq)
{
IExpressionEncoder <BoxedExpression> encoder = BoxedExpressionEncoder.Encoder(this.mdDecoder, this.context);
BoxedExpression right = pol.ToPureExpression(encoder);
result = new LinearEqualitiesForUnsafeCode(result.TestTrueEqual(length, right), this.bdecoder, this.context, this.mdDecoder);
}
eq = prevcloned.EqualsTo(length);
foreach (Polynomial <BoxedExpression> pol in eq)
{
IExpressionEncoder <BoxedExpression> encoder = BoxedExpressionEncoder.Encoder(this.mdDecoder, this.context);
BoxedExpression right = pol.ToPureExpression(encoder);
result = new LinearEqualitiesForUnsafeCode(result.TestTrueEqual(length, right), this.bdecoder, this.context, this.mdDecoder);
}
}
internal static IExpressionEncoder <BoxedVariable <Variable>, BoxedExpression> BoxedEncoder <Local, Parameter, Method, Field, Property, Event, Type, Attribute, Assembly, Expression, Variable, LogOptions>
(
this IMethodDriver <Local, Parameter, Method, Field, Property, Event, Type, Attribute, Assembly, Expression, Variable, LogOptions> mdriver
)
where Type : IEquatable <Type>
where Expression : IEquatable <Expression>
where Variable : IEquatable <Variable>
where LogOptions : IFrameworkLogOptions
{
Contract.Ensures(Contract.Result <IExpressionEncoder <BoxedVariable <Variable>, BoxedExpression> >() != null);
var result = encoderCache as IExpressionEncoder <BoxedVariable <Variable>, BoxedExpression>;
if (result == null)
{
encoderCache = result = BoxedExpressionEncoder <Variable> .Encoder(mdriver.MetaDataDecoder, mdriver.Context);
}
return(result);
}
