private static bool CheckOptionalArgs(ClassFile classFile, ClassFile.BootstrapMethod bsm, ClassFile.ConstantType type, ref int argpos)
{
if (bsm.ArgumentCount - argpos < 1)
{
return(false);
}
if (classFile.GetConstantPoolConstantType(bsm.GetArgument(argpos)) != ClassFile.ConstantType.Integer)
{
return(false);
}
int count = classFile.GetConstantPoolConstantInteger(bsm.GetArgument(argpos++));
if (count < 0 || bsm.ArgumentCount - argpos < count)
{
return(false);
}
for (int i = 0; i < count; i++)
{
if (classFile.GetConstantPoolConstantType(bsm.GetArgument(argpos++)) != type)
{
return(false);
}
}
return(true);
}
private static bool IsLambdaAltMetafactory(ClassFile classFile, ClassFile.BootstrapMethod bsm)
{
ClassFile.ConstantPoolItemMethodHandle mh;
AltFlags flags;
int argpos = 4;
return(bsm.ArgumentCount >= 4 &&
(mh = classFile.GetConstantPoolConstantMethodHandle(bsm.BootstrapMethodIndex)).Kind == ClassFile.RefKind.invokeStatic &&
IsLambdaAltMetafactory(mh.Member) &&
classFile.GetConstantPoolConstantType(bsm.GetArgument(0)) == ClassFile.ConstantType.MethodType &&
classFile.GetConstantPoolConstantType(bsm.GetArgument(1)) == ClassFile.ConstantType.MethodHandle &&
classFile.GetConstantPoolConstantType(bsm.GetArgument(2)) == ClassFile.ConstantType.MethodType &&
classFile.GetConstantPoolConstantType(bsm.GetArgument(3)) == ClassFile.ConstantType.Integer &&
((flags = (AltFlags)classFile.GetConstantPoolConstantInteger(bsm.GetArgument(3))) & ~AltFlags.Mask) == 0 &&
((flags & AltFlags.Markers) == 0 || CheckOptionalArgs(classFile, bsm, ClassFile.ConstantType.Class, ref argpos)) &&
((flags & AltFlags.Bridges) == 0 || CheckOptionalArgs(classFile, bsm, ClassFile.ConstantType.MethodType, ref argpos)) &&
argpos == bsm.ArgumentCount);
}
private bool EmitImpl(DynamicTypeWrapper.FinishContext context, ClassFile classFile, ClassFile.ConstantPoolItemInvokeDynamic cpi, ClassFile.BootstrapMethod bsm, CodeEmitter ilgen)
{
if (HasUnloadable(cpi))
{
Fail("cpi has unloadable");
return(false);
}
bool serializable = false;
TypeWrapper[] markers = TypeWrapper.EmptyArray;
ClassFile.ConstantPoolItemMethodType[] bridges = null;
if (bsm.ArgumentCount > 3)
{
AltFlags flags = (AltFlags)classFile.GetConstantPoolConstantInteger(bsm.GetArgument(3));
serializable = (flags & AltFlags.Serializable) != 0;
int argpos = 4;
if ((flags & AltFlags.Markers) != 0)
{
markers = new TypeWrapper[classFile.GetConstantPoolConstantInteger(bsm.GetArgument(argpos++))];
for (int i = 0; i < markers.Length; i++)
{
if ((markers[i] = classFile.GetConstantPoolClassType(bsm.GetArgument(argpos++))).IsUnloadable)
{
Fail("unloadable marker");
return(false);
}
}
}
if ((flags & AltFlags.Bridges) != 0)
{
bridges = new ClassFile.ConstantPoolItemMethodType[classFile.GetConstantPoolConstantInteger(bsm.GetArgument(argpos++))];
for (int i = 0; i < bridges.Length; i++)
{
bridges[i] = classFile.GetConstantPoolConstantMethodType(bsm.GetArgument(argpos++));
if (HasUnloadable(bridges[i]))
{
Fail("unloadable bridge");
return(false);
}
}
}
}
ClassFile.ConstantPoolItemMethodType samMethodType = classFile.GetConstantPoolConstantMethodType(bsm.GetArgument(0));
ClassFile.ConstantPoolItemMethodHandle implMethod = classFile.GetConstantPoolConstantMethodHandle(bsm.GetArgument(1));
ClassFile.ConstantPoolItemMethodType instantiatedMethodType = classFile.GetConstantPoolConstantMethodType(bsm.GetArgument(2));
if (HasUnloadable(samMethodType) ||
HasUnloadable((ClassFile.ConstantPoolItemMI)implMethod.MemberConstantPoolItem) ||
HasUnloadable(instantiatedMethodType))
{
Fail("bsm args has unloadable");
return(false);
}
TypeWrapper interfaceType = cpi.GetRetType();
MethodWrapper[] methodList;
if (!CheckSupportedInterfaces(context.TypeWrapper, interfaceType, markers, bridges, out methodList))
{
Fail("unsupported interface");
return(false);
}
if (serializable && Array.Exists(methodList, delegate(MethodWrapper mw) { return(mw.Name == "writeReplace" && mw.Signature == "()Ljava.lang.Object;"); }))
{
Fail("writeReplace");
return(false);
}
if (!IsSupportedImplMethod(implMethod, context.TypeWrapper, cpi.GetArgTypes(), instantiatedMethodType))
{
Fail("implMethod " + implMethod.MemberConstantPoolItem.Class + "::" + implMethod.MemberConstantPoolItem.Name + implMethod.MemberConstantPoolItem.Signature);
return(false);
}
TypeWrapper[] implParameters = GetImplParameters(implMethod);
CheckConstraints(instantiatedMethodType, samMethodType, cpi.GetArgTypes(), implParameters);
if (bridges != null)
{
foreach (ClassFile.ConstantPoolItemMethodType bridge in bridges)
{
if (bridge.Signature == samMethodType.Signature)
{
Fail("bridge signature matches sam");
return(false);
}
if (!CheckConstraints(instantiatedMethodType, bridge, cpi.GetArgTypes(), implParameters))
{
Fail("bridge constraints");
return(false);
}
}
}
if (instantiatedMethodType.GetRetType() != PrimitiveTypeWrapper.VOID)
{
TypeWrapper Rt = instantiatedMethodType.GetRetType();
TypeWrapper Ra = GetImplReturnType(implMethod);
if (Ra == PrimitiveTypeWrapper.VOID || !IsAdaptable(Ra, Rt, true))
{
Fail("The return type Rt is void, or the return type Ra is not void and is adaptable to Rt");
return(false);
}
}
MethodWrapper interfaceMethod = null;
List <MethodWrapper> methods = new List <MethodWrapper>();
foreach (MethodWrapper mw in methodList)
{
if (mw.Name == cpi.Name && mw.Signature == samMethodType.Signature)
{
interfaceMethod = mw;
methods.Add(mw);
}
else if (mw.IsAbstract && !IsObjectMethod(mw))
{
methods.Add(mw);
}
}
if (interfaceMethod == null || !interfaceMethod.IsAbstract || IsObjectMethod(interfaceMethod) || !MatchSignatures(interfaceMethod, samMethodType))
{
Fail("interfaceMethod");
return(false);
}
TypeBuilder tb = context.DefineAnonymousClass();
// we're not implementing the interfaces recursively (because we don't care about .NET Compact anymore),
// but should we decide to do that, we'd need to somehow communicate to AnonymousTypeWrapper what the 'real' interface is
tb.AddInterfaceImplementation(interfaceType.TypeAsBaseType);
if (serializable && Array.IndexOf(markers, CoreClasses.java.io.Serializable.Wrapper) == -1)
{
tb.AddInterfaceImplementation(CoreClasses.java.io.Serializable.Wrapper.TypeAsBaseType);
}
foreach (TypeWrapper marker in markers)
{
tb.AddInterfaceImplementation(marker.TypeAsBaseType);
}
ctor = CreateConstructorAndDispatch(context, cpi, tb, methods, implParameters, samMethodType, implMethod, instantiatedMethodType, serializable);
AddDefaultInterfaceMethods(context, methodList, tb);
return(true);
}
internal Field(ClassFile classFile, string[] utf8_cp, BigEndianBinaryReader br) : base(classFile, utf8_cp, br)
{
if((IsPrivate && IsPublic) || (IsPrivate && IsProtected) || (IsPublic && IsProtected)
|| (IsFinal && IsVolatile)
|| (classFile.IsInterface && (!IsPublic || !IsStatic || !IsFinal || IsTransient)))
{
throw new ClassFormatError("{0} (Illegal field modifiers: 0x{1:X})", classFile.Name, access_flags);
}
int attributes_count = br.ReadUInt16();
for(int i = 0; i < attributes_count; i++)
{
switch(classFile.GetConstantPoolUtf8String(utf8_cp, br.ReadUInt16()))
{
case "Deprecated":
if(br.ReadUInt32() != 0)
{
throw new ClassFormatError("Invalid Deprecated attribute length");
}
flags |= FLAG_MASK_DEPRECATED;
break;
case "ConstantValue":
{
if(br.ReadUInt32() != 2)
{
throw new ClassFormatError("Invalid ConstantValue attribute length");
}
ushort index = br.ReadUInt16();
try
{
switch(Signature)
{
case "I":
constantValue = classFile.GetConstantPoolConstantInteger(index);
break;
case "S":
constantValue = (short)classFile.GetConstantPoolConstantInteger(index);
break;
case "B":
constantValue = (byte)classFile.GetConstantPoolConstantInteger(index);
break;
case "C":
constantValue = (char)classFile.GetConstantPoolConstantInteger(index);
break;
case "Z":
constantValue = classFile.GetConstantPoolConstantInteger(index) != 0;
break;
case "J":
constantValue = classFile.GetConstantPoolConstantLong(index);
break;
case "F":
constantValue = classFile.GetConstantPoolConstantFloat(index);
break;
case "D":
constantValue = classFile.GetConstantPoolConstantDouble(index);
break;
case "Ljava.lang.String;":
constantValue = classFile.GetConstantPoolConstantString(index);
break;
default:
throw new ClassFormatError("{0} (Invalid signature for constant)", classFile.Name);
}
}
catch(InvalidCastException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
catch(IndexOutOfRangeException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
catch(InvalidOperationException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
catch(NullReferenceException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
break;
}
case "Signature":
if(classFile.MajorVersion < 49)
{
goto default;
}
if(br.ReadUInt32() != 2)
{
throw new ClassFormatError("Signature attribute has incorrect length");
}
signature = classFile.GetConstantPoolUtf8String(utf8_cp, br.ReadUInt16());
break;
case "RuntimeVisibleAnnotations":
if(classFile.MajorVersion < 49)
{
goto default;
}
annotations = ReadAnnotations(br, classFile, utf8_cp);
break;
case "RuntimeInvisibleAnnotations":
if(classFile.MajorVersion < 49)
{
goto default;
}
foreach(object[] annot in ReadAnnotations(br, classFile, utf8_cp))
{
if(annot[1].Equals("Likvm/lang/Property;"))
{
DecodePropertyAnnotation(classFile, annot);
}
#if STATIC_COMPILER
else if(annot[1].Equals("Likvm/lang/Internal;"))
{
this.access_flags &= ~Modifiers.AccessMask;
flags |= FLAG_MASK_INTERNAL;
}
#endif
}
break;
default:
br.Skip(br.ReadUInt32());
break;
}
}
}
internal Field(ClassFile classFile, BigEndianBinaryReader br) : base(classFile, br)
{
if ((IsPrivate && IsPublic) || (IsPrivate && IsProtected) || (IsPublic && IsProtected)
|| (IsFinal && IsVolatile)
|| (classFile.IsInterface && (!IsPublic || !IsStatic || !IsFinal || IsTransient)))
{
throw new ClassFormatError("{0} (Illegal field modifiers: 0x{1:X})", classFile.Name, access_flags);
}
int attributes_count = br.ReadUInt16();
for (int i = 0; i < attributes_count; i++)
{
switch (classFile.GetConstantPoolUtf8String(br.ReadUInt16()))
{
case "Deprecated":
deprecated = true;
#if FUZZ_HACK
br.Skip(br.ReadUInt32());
#else
if(br.ReadUInt32() != 0)
{
throw new ClassFormatError("Deprecated attribute has non-zero length");
}
#endif
break;
case "ConstantValue":
{
if (br.ReadUInt32() != 2)
{
throw new ClassFormatError("Invalid ConstantValue attribute length");
}
ushort index = br.ReadUInt16();
try
{
switch (Signature)
{
case "I":
constantValue = classFile.GetConstantPoolConstantInteger(index);
break;
case "S":
constantValue = (short) classFile.GetConstantPoolConstantInteger(index);
break;
case "B":
constantValue = (byte) classFile.GetConstantPoolConstantInteger(index);
break;
case "C":
constantValue = (char) classFile.GetConstantPoolConstantInteger(index);
break;
case "Z":
constantValue = classFile.GetConstantPoolConstantInteger(index) != 0;
break;
case "J":
constantValue = classFile.GetConstantPoolConstantLong(index);
break;
case "F":
constantValue = classFile.GetConstantPoolConstantFloat(index);
break;
case "D":
constantValue = classFile.GetConstantPoolConstantDouble(index);
break;
case "Ljava.lang.String;":
constantValue = classFile.GetConstantPoolConstantString(index);
break;
default:
throw new ClassFormatError("{0} (Invalid signature for constant)", classFile.Name);
}
}
catch (InvalidCastException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
catch (IndexOutOfRangeException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
catch (InvalidOperationException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
catch (NullReferenceException)
{
throw new ClassFormatError("{0} (Bad index into constant pool)", classFile.Name);
}
break;
}
default:
br.Skip(br.ReadUInt32());
break;
}
}
}
