public static Boolean Is_Ldelem(this VirtualOpCode ins)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_1, Code.Castclass, Code.Callvirt, Code.Stloc_0, Code.Ldarg_0, Code.Ldloc_0,
Code.Call, Code.Stloc_1, Code.Ldarg_0, Code.Ldloc_1, Code.Call, Code.Ret
}) && _Is_Ldelem(ins));
}
public static Boolean Is_Throw(this VirtualOpCode ins)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Call, Code.Stloc_0, Code.Ldloc_0,
Code.Callvirt, Code.Call, Code.Ret
}) && _Is_Throw(ins, ((MethodDef)ins.DelegateMethod.Body.Instructions[5].Operand)));
}
public static Boolean Is_Ldelem_Ref(this VirtualOpCode ins)
{
// Is exact same as Ldelem_I except for the field reference
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Ldsfld, Code.Call, Code.Ret
}) && _Is_Ldelem(ins) && !ins.Is_Ldelem_I());
}
public static Boolean Is_Ret(this VirtualOpCode ins)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Call, Code.Ret
}) && ((MethodDef)ins.DelegateMethod.Body.Instructions[1].Operand).MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Ldc_I4_1, Code.Stfld, Code.Ret
}));
}
private static Boolean _Is_Ldelem_T(VirtualOpCode ins, String typeName)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Ldtoken, Code.Call, Code.Call, Code.Ret
}) && ((ITypeDefOrRef)ins.DelegateMethod.Body.Instructions[1].Operand)
.FullName.Equals(typeName) &&
_Is_Ldelem(ins));
}
private static Boolean Is_Stloc_C(VirtualOpCode ins, Code code)
{
return(ins.MatchesEntire(ins.ModifyPattern(Pattern_Stloc_C, Code.Ldc_I4, code)) &&
Helpers.FindOpCodePatterns( // Check called method against Pattern_Helper_Stloc_C
((MethodDef)ins.DelegateMethod.Body.Instructions[2].Operand).Body.Instructions,
Pattern_Helper_Stloc_C
).Count > 0);
}
public static Boolean _Is_Ldc(VirtualOpCode ins, OperandType expectedOperandType)
{
OperandType operandType;
return(ins.MatchesEntire(Pattern_Ldc) &&
ins.TryGetOperandType(out operandType) &&
operandType == expectedOperandType);
}
private static Boolean _Is_Ldelem_T(VirtualOpCode ins, String typeName)
{
return ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Ldtoken, Code.Call, Code.Call, Code.Ret
}) && ((ITypeDefOrRef)ins.DelegateMethod.Body.Instructions[1].Operand)
.FullName.Equals(typeName)
&& _Is_Ldelem(ins);
}
public static Boolean Is_Ldloc_S(this VirtualOpCode ins)
{
return(ins.MatchesEntire(Pattern_Ldloc) &&
((MethodDef)ins.DelegateMethod.Body.Instructions[7].Operand)
.ReturnType.FullName.Equals("System.Byte") &&
((FieldDef)ins.DelegateMethod.Body.Instructions[5].Operand)
.MDToken == ins.VType.LocalsField.MDToken);
}
public static Boolean Is_Ldlen(this VirtualOpCode ins)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Call, Code.Callvirt, Code.Castclass, Code.Stloc_0, Code.Ldarg_0,
Code.Newobj, Code.Stloc_1, Code.Ldloc_1, Code.Ldloc_0, Code.Callvirt, Code.Callvirt,
Code.Ldloc_1, Code.Call, Code.Ret
}) && ((IMethod)ins.DelegateMethod.Body.Instructions[10].Operand)
.FullName.Contains("System.Array::get_Length"));
}
public static Boolean Is_Ldstr(this VirtualOpCode ins)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_1, Code.Castclass, Code.Callvirt, Code.Stloc_0, Code.Ldarg_0,
Code.Ldloc_0, Code.Call, Code.Stloc_1, Code.Ldarg_0, Code.Newobj,
Code.Stloc_2, Code.Ldloc_2, Code.Ldloc_1, Code.Callvirt, Code.Ldloc_2,
Code.Call, Code.Ret
}) && ((MethodDef)ins.DelegateMethod.Body.Instructions[6].Operand)
.ReturnType.FullName.Equals("System.String"));
}
private static Boolean _Is_Stloc(VirtualOpCode ins, String indexTypeName)
{
return(ins.MatchesEntire(Pattern_Stloc) &&
((MethodDef)ins.DelegateMethod.Body.Instructions[5].Operand)
.ReturnType.FullName.Equals(indexTypeName) &&
Helpers.FindOpCodePatterns( // Check called method against Pattern_Helper_Stloc_C
((MethodDef)ins.DelegateMethod.Body.Instructions[6].Operand).Body.Instructions,
Pattern_Helper_Stloc_C
).Count > 0);
}
public static Boolean Is_Br(this VirtualOpCode ins)
{
MethodDef called;
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_1, Code.Castclass, Code.Callvirt, Code.Stloc_0, Code.Ldarg_0,
Code.Ldloc_0, Code.Call, Code.Ret
}) && (called = (MethodDef)ins.DelegateMethod.Calls().ToArray()[1]).MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Ldarg_1, Code.Newobj, Code.Stfld, Code.Ret
}) && ((IMethod)called.Body.Instructions[2].Operand).FullName.Contains("System.Nullable"));
}
public static Boolean Is_Pop(this VirtualOpCode ins)
{
MethodDef method = null;
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Call, Code.Pop, Code.Ret
}) && (method = ins.DelegateMethod.Body.Instructions[1].Operand as MethodDef) != null &&
method.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Ldfld, Code.Callvirt, Code.Ret
}));
}
public static Boolean Is_Conv_Ovf_I4(this VirtualOpCode ins)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Ldc_I4_1, Code.Call, Code.Ret
}) && ins.DelegateMethod.MatchesIndirect(Pattern_Conv_I4));
}
private static Boolean Is_Ldloc_C(VirtualOpCode ins, Code code)
{
return(ins.MatchesEntire(ins.ModifyPattern(Pattern_Ldloc_C, Code.Ldc_I4, code)) &&
((FieldDef)ins.DelegateMethod.Body.Instructions[2].Operand).MDToken == ins.VType.LocalsField.MDToken);
}
private static Boolean Is_Stloc_C(VirtualOpCode ins, Code code)
{
return ins.MatchesEntire(ins.ModifyPattern(Pattern_Stloc_C, Code.Ldc_I4, code))
&& Helpers.FindOpCodePatterns( // Check called method against Pattern_Helper_Stloc_C
((MethodDef)ins.DelegateMethod.Body.Instructions[2].Operand).Body.Instructions,
Pattern_Helper_Stloc_C
).Count > 0;
}
private static Boolean _Is_Stloc(VirtualOpCode ins, String indexTypeName)
{
return ins.MatchesEntire(Pattern_Stloc)
&& ((MethodDef)ins.DelegateMethod.Body.Instructions[5].Operand)
.ReturnType.FullName.Equals(indexTypeName)
&& Helpers.FindOpCodePatterns( // Check called method against Pattern_Helper_Stloc_C
((MethodDef)ins.DelegateMethod.Body.Instructions[6].Operand).Body.Instructions,
Pattern_Helper_Stloc_C
).Count > 0;
}
private static Boolean Is_Ldloc_C(VirtualOpCode ins, Code code)
{
return ins.MatchesEntire(ins.ModifyPattern(Pattern_Ldloc_C, Code.Ldc_I4, code))
&& ((FieldDef)ins.DelegateMethod.Body.Instructions[2].Operand).MDToken == ins.VType.LocalsField.MDToken;
}
private static Boolean Is_Ldc_I4_C(VirtualOpCode ins, Code code)
{
return ins.MatchesEntire(ins.ModifyPattern(Pattern_Ldc_I4_C, Code.Ldc_I4, code));
}
public static Boolean Is_Ldnull(this VirtualOpCode ins)
{
return(ins.MatchesEntire(new Code[] {
Code.Ldarg_0, Code.Newobj, Code.Call, Code.Ret
}));
}
private static Boolean Is_Ldc_I4_C(VirtualOpCode ins, Code code)
{
return(ins.MatchesEntire(ins.ModifyPattern(Pattern_Ldc_I4_C, Code.Ldc_I4, code)));
}
public static Boolean _Is_Ldc(VirtualOpCode ins, OperandType expectedOperandType)
{
OperandType operandType;
return ins.MatchesEntire(Pattern_Ldc)
&& ins.TryGetOperandType(out operandType)
&& operandType == expectedOperandType;
}
