public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
var ufixSample = (UFix)args[0].Sample;
var ufixType = args[0].Expr.ResultType;
var slvuType = TypeDescriptor.GetTypeOf(ufixSample.SLVValue);
object[] outArgs;
object rsample;
stack.TryGetReturnValueSample((MethodInfo)callee, args, out outArgs, out rsample);
if (rsample == null)
throw new ArgumentException("Unable to infer result sample");
var sfixSample = (SFix)rsample;
var sfixType = TypeDescriptor.GetTypeOf(sfixSample);
var slvsType = TypeDescriptor.GetTypeOf(sfixSample.SLVValue);
var zlit = LiteralReference.CreateConstant(StdLogic._0);
var eargs = args.Select(arg => arg.Expr).ToArray();
var cast1 = IntrinsicFunctions.Cast(eargs, ufixType.CILType, slvuType, true);
var cast2 = Expression.Concat(zlit, cast1);
var cast3 = IntrinsicFunctions.Cast(new Expression[] { cast2 }, slvsType.CILType, sfixType, true);
stack.Push(cast3, rsample);
return true;
}
public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
object[] vargs = args.Select(arg => arg.Sample).ToArray();
Expression[] eargs = args.Select(arg => arg.Expr).ToArray();
object sample = null;
try
{
sample = callee.Invoke(vargs);
}
catch (Exception)
{
}
Expression result = new BinOp()
{
Operation = Kind
};
Array.Copy(eargs, result.Children, 2);
if (sample != null)
result.ResultType = TypeDescriptor.GetTypeOf(sample);
else
{
Type rtype;
callee.IsFunction(out rtype);
result.ResultType = (TypeDescriptor)rtype;
}
stack.Push(result, sample);
return true;
}
public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
var amd = stack.QueryAttribute<AsyncMethodDecompiler>();
if (amd != null && amd.ImplStyle == EAsyncImplStyle.FSM)
{
return false;
}
object[] outArgs;
object result;
stack.TryGetReturnValueSample((MethodInfo)callee, args, out outArgs, out result);
var fspec = new FunctionSpec(typeof(Task))
{
CILRep = callee
};
var fcall = new FunctionCall()
{
Callee = fspec,
Arguments = args.Select(a => a.Expr).ToArray(),
ResultType = TypeDescriptor.GetTypeOf(result)
};
stack.Push(fcall, result);
return true;
}
public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
Type returnType;
if (callee.ReturnsSomething(out returnType))
throw new ArgumentException("The IgnoreOnDecompilation attribute may only be applied to methods returning a void result. Use StaticEvaluation instead.");
if (_call)
{
callee.Invoke(args.Select(a => a.Sample).ToArray());
}
return true;
}
public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
Type returnType;
if (!callee.ReturnsSomething(out returnType))
throw new ArgumentException("The StaticEvaluation attribute may only be applied to methods returning some result. Use IgnoreOnDecompilation instead.");
object result = null;
try
{
result = callee.Invoke(args.Select(arg => arg.Sample).ToArray());
}
catch (TargetInvocationException)
{
}
Expression resultExpr = ResultGen(result);
stack.Push(new StackElement(resultExpr, result, EVariability.Constant));
return true;
}
public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
object[] outArgs;
object rsample = null;
if (callee is MethodInfo &&
!callee.HasCustomOrInjectedAttribute<IDoNotCallOnDecompilation>())
{
stack.TryGetReturnValueSample((MethodInfo)callee, args, out outArgs, out rsample);
}
Type returnType;
callee.IsFunctionOrCtor(out returnType);
TypeDescriptor rtype;
if (rsample != null)
rtype = TypeDescriptor.GetTypeOf(rsample);
else
rtype = returnType;
IntrinsicFunction ifun;
FunctionCall fcall;
if (args[1].Variability == EVariability.Constant &&
args[2].Variability == EVariability.Constant)
{
// constant arguments case
int first = (int)TypeConversions.ConvertValue(args[1].Sample, typeof(int));
int second = (int)TypeConversions.ConvertValue(args[2].Sample, typeof(int));
var range = new Range(first, second, EDimDirection.Downto);
ifun = new IntrinsicFunction(IntrinsicFunction.EAction.Slice, range)
{
MethodModel = callee
};
var fspec = new FunctionSpec(rtype)
{
CILRep = callee,
IntrinsicRep = ifun
};
fcall = new FunctionCall()
{
Callee = fspec,
Arguments = new Expression[] { args[0].Expr },
ResultType = rtype,
SetResultTypeClass = EResultTypeClass.ObjectReference
};
}
else
{
ifun = new IntrinsicFunction(IntrinsicFunction.EAction.Slice)
{
MethodModel = callee
};
var fspec = new FunctionSpec(rtype)
{
CILRep = callee,
IntrinsicRep = ifun
};
fcall = new FunctionCall()
{
Callee = fspec,
Arguments = args.Select(arg => arg.Expr).ToArray(),
ResultType = rtype,
SetResultTypeClass = EResultTypeClass.ObjectReference
};
}
stack.Push(fcall, rsample);
return true;
}
public override bool Rewrite(CodeDescriptor decompilee, MethodBase callee, StackElement[] args, IDecompiler stack, IFunctionBuilder builder)
{
Type returnType;
bool flag = callee.IsFunction(out returnType);
Debug.Assert(flag);
var atype = args[0].Expr.ResultType.CILType;
if (atype.IsPointer)
atype = atype.GetElementType();
Debug.Assert(atype.Equals(SourceType));
object[] outArgs;
object rsample;
stack.TryGetReturnValueSample((MethodInfo)callee, args, out outArgs, out rsample);
TypeDescriptor rtype;
if (rsample != null)
rtype = TypeDescriptor.GetTypeOf(rsample);
else
rtype = returnType;
Debug.Assert(rtype.CILType.Equals(DestType));
Expression[] eargs = args.Select(arg => arg.Expr).ToArray();
var fcall = IntrinsicFunctions.Cast(eargs, SourceType, rtype, Reinterpret);
stack.Push(fcall, rsample);
return true;
}
public override bool Rewrite(
CodeDescriptor decompilee,
MethodBase callee,
StackElement[] args,
IDecompiler stack,
IFunctionBuilder builder)
{
if (args.Length < 2)
throw new InvalidOperationException("The attribute SignalIndexer was applied to the wrong method");
LiteralReference refExpr = args[0].Expr as LiteralReference;
if (refExpr == null)
throw new InvalidOperationException("Unable to resolve port/signal reference expression");
DimSpec[] dimSamples = new DimSpec[args.Length - 1];
Expression[] indices = args.Skip(1).Select(arg => arg.Expr).ToArray();
bool isStatic = true;
for (int i = 1; i < args.Length; i++)
{
var convidx = TypeConversions.ConvertValue(args[i].Sample, typeof(int));
if (convidx != null)
{
dimSamples[i - 1] = (int)convidx;
}
else if (args[i].Sample is Range)
{
dimSamples[i - 1] = (Range)args[i].Sample;
}
else
{
dimSamples = null;
break;
}
// EVariability.LocalVariable is not static as well, since variables
// inside for loops will have that variability.
if (args[i].Variability != EVariability.Constant)
isStatic = false;
}
IndexSpec indexSpec = null;
indexSpec = new IndexSpec(dimSamples);
SignalRef sigRef = null;
LambdaLiteralVisitor llv = new LambdaLiteralVisitor()
{
OnVisitConstant = x =>
{
sigRef = new SignalRef(
((SignalBase)x.ConstantValue).Descriptor,
SignalRef.EReferencedProperty.Instance,
new Expression[][] { indices }, indexSpec, isStatic);
},
OnVisitFieldRef = x => { throw new InvalidOperationException(); },
OnVisitSignalRef = x =>
{
sigRef = new SignalRef(
x.Desc,
x.Prop,
x.Indices.Concat(new Expression[][] { indices }),
indexSpec.Project(x.IndexSample),
x.IsStaticIndex && isStatic);
},
OnVisitVariable = x => { throw new InvalidOperationException(); },
OnVisitThisRef = x => { throw new InvalidOperationException(); }
};
refExpr.ReferencedObject.Accept(llv);
object rsample = null;
Type[] argTypes = args
.Skip(1)
.Select(a => a.Expr.ResultType.CILType)
.ToArray();
object[] argSamples = args
.Select(a => a.Sample)
.ToArray();
MethodInfo indexerSampleMethod = callee.DeclaringType.GetMethod(
"GetIndexerSample",
BindingFlags.Instance | BindingFlags.NonPublic,
null,
argTypes,
null);
if (indexerSampleMethod != null && argSamples.All(a => a != null))
{
rsample = indexerSampleMethod.Invoke(argSamples);
}
else
{
try
{
rsample = callee.Invoke(args.Select(x => x.Sample).ToArray());
}
catch (TargetInvocationException)
{
}
}
stack.Push(sigRef, rsample);
return true;
}