internal MethodHandle(JavaClassImage image, MethodHandleInfo info)
{
Kind = info.ReferenceKind;
switch (Kind)
{
case MethodReferenceKind.GetField:
case MethodReferenceKind.GetStatic:
case MethodReferenceKind.PutField:
case MethodReferenceKind.PutStatic:
_member = new LazyValue <IMemberReference>(() => image.ResolveField(info.ReferenceIndex));
break;
case MethodReferenceKind.InvokeVirtual:
case MethodReferenceKind.InvokeStatic:
case MethodReferenceKind.InvokeSpecial:
case MethodReferenceKind.NewInvokeSpecial:
_member = new LazyValue <IMemberReference>(() => image.ResolveMethod(info.ReferenceIndex));
break;
case MethodReferenceKind.InvokeInterface:
throw new NotImplementedException();
default:
throw new ArgumentOutOfRangeException();
}
}
private static object ResolveArgument(JavaClassImage image, ushort index)
{
var constantInfo = image.ClassFile.ConstantPool.ResolveConstant(index);
switch (constantInfo.Tag)
{
case ConstantPoolTag.String:
constantInfo = image.ClassFile.ConstantPool.ResolveConstant(index);
return(constantInfo is StringInfo stringInfo
? image.ClassFile.ConstantPool.ResolveString(stringInfo.StringIndex)
: null);
case ConstantPoolTag.Class:
return(image.ResolveClass(index));
case ConstantPoolTag.Integer:
case ConstantPoolTag.Long:
case ConstantPoolTag.Float:
case ConstantPoolTag.Double:
return(((PrimitiveInfo)constantInfo).Value);
case ConstantPoolTag.MethodType:
var methodType = (MethodTypeInfo)constantInfo;
string rawDescriptor = image.ClassFile.ConstantPool.ResolveString(methodType.DescriptorIndex);
return(MethodDescriptor.FromString(rawDescriptor));
case ConstantPoolTag.MethodHandle:
throw new NotImplementedException();
default:
throw new ArgumentOutOfRangeException();
}
}
internal ClassDefinition(JavaClassImage classImage)
: base(classImage, (ClassInfo)classImage.ClassFile.ConstantPool.ResolveConstant(classImage.ClassFile.ThisClass))
{
Image = classImage;
// Super class
_superClass = new LazyValue <ClassReference>(() =>
classImage.ClassFile.SuperClass != 0
? new ClassReference(classImage,
(ClassInfo)classImage.ClassFile.ConstantPool.ResolveConstant(classImage.ClassFile.SuperClass))
: null);
// Flags
AccessFlags = classImage.ClassFile.AccessFlags;
// Fields
Fields = new FieldCollection(this);
foreach (var field in classImage.ClassFile.Fields)
{
Fields.Add(new FieldDefinition(classImage, field));
}
// Methods
Methods = new MethodCollection(this);
foreach (var method in classImage.ClassFile.Methods)
{
Methods.Add(new MethodDefinition(classImage, method));
}
}
internal FieldDefinition(JavaClassImage classImage, FieldInfo fieldInfo)
{
// Name
_name = new LazyValue <string>(() =>
classImage.ClassFile.ConstantPool.ResolveString(fieldInfo.NameIndex)
?? $"<<<INVALID({fieldInfo.NameIndex})>>>");
// Access flags.
AccessFlags = fieldInfo.AccessFlags;
// Descriptor.
_descriptor = new LazyValue <FieldDescriptor>(() =>
classImage.ResolveFieldDescriptor(fieldInfo.DescriptorIndex));
// Extra attributes.
foreach (var attr in fieldInfo.Attributes)
{
string name = classImage.ClassFile.ConstantPool.ResolveString(attr.NameIndex);
switch (name)
{
case SingleIndexAttribute.ConstantValueAttribute:
// Constant
_constant = new LazyValue <object>(() =>
{
var contents =
SingleIndexAttribute.FromReader(name, new MemoryBigEndianReader(attr.Contents));
var constantInfo =
classImage.ClassFile.ConstantPool.ResolveConstant(contents.ConstantPoolIndex);
switch (constantInfo)
{
case PrimitiveInfo primitiveInfo:
return(primitiveInfo.Value);
case StringInfo stringInfo:
return(classImage.ClassFile.ConstantPool.ResolveString(stringInfo.StringIndex));
default:
return(null);
}
});
break;
default:
// Fall back method:
ExtraAttributes.Add(classImage.ClassFile.ConstantPool.ResolveString(attr.NameIndex),
attr.Clone());
break;
}
}
}
internal ClassDefinition(JavaClassImage classImage)
: base(classImage, (ClassInfo)classImage.ClassFile.ConstantPool.ResolveConstant(classImage.ClassFile.ThisClass))
{
Image = classImage;
// Super class
_superClass = new LazyValue <ClassReference>(() =>
classImage.ClassFile.SuperClass != 0
? new ClassReference(classImage,
(ClassInfo)classImage.ClassFile.ConstantPool.ResolveConstant(classImage.ClassFile.SuperClass))
: null);
// Flags
AccessFlags = classImage.ClassFile.AccessFlags;
// Fields
Fields = new FieldCollection(this);
foreach (var field in classImage.ClassFile.Fields)
{
Fields.Add(new FieldDefinition(classImage, field));
}
// Methods
Methods = new MethodCollection(this);
foreach (var method in classImage.ClassFile.Methods)
{
Methods.Add(new MethodDefinition(classImage, method));
}
// Attributes
foreach (var attr in classImage.ClassFile.Attributes)
{
string name = classImage.ClassFile.ConstantPool.ResolveString(attr.NameIndex);
switch (name)
{
// Source file
case SingleIndexAttribute.SourceFileAttribute:
_sourceFile = new LazyValue <string>(() =>
{
var sourceFile = SingleIndexAttribute.FromReader(name, new MemoryBigEndianReader(attr.Contents));
return(classImage.ClassFile.ConstantPool.ResolveString(sourceFile.ConstantPoolIndex));
});
break;
default:
ExtraAttributes.Add(name, attr.Clone());
break;
}
}
}
internal BootstrapMethod(JavaClassImage image, BootstrapMethodInfo info)
{
_handle = new LazyValue <MethodHandle>(() =>
{
var constantInfo = image.ClassFile.ConstantPool.ResolveConstant(info.MethodRefIndex);
return(constantInfo is MethodHandleInfo methodHandleInfo
? new MethodHandle(image, methodHandleInfo)
: null);
});
Arguments = new List <object>(info.Arguments.Count);
foreach (ushort argIndex in info.Arguments)
{
Arguments.Add(ResolveArgument(image, argIndex));
}
}
internal MethodDefinition(JavaClassImage classImage, MethodInfo methodInfo)
{
// Name
_name = new LazyValue <string>(() =>
classImage.ClassFile.ConstantPool.ResolveString(methodInfo.NameIndex) ?? $"<<<INVALID({methodInfo.NameIndex})>>>");
// Flags
AccessFlags = methodInfo.AccessFlags;
//Descriptor
_descriptor = new LazyValue <MethodDescriptor>(() =>
classImage.ResolveMethodDescriptor(methodInfo.DescriptorIndex));
// Attributes
foreach (var attribute in methodInfo.Attributes)
{
string name = classImage.ClassFile.ConstantPool.ResolveString(attribute.NameIndex);
switch (name)
{
// Code
case CodeAttribute.AttributeName:
_body = new LazyValue <ByteCodeMethodBody>(() =>
{
var reader = new MemoryBigEndianReader(attribute.Contents);
return(new ByteCodeMethodBody(classImage, CodeAttribute.FromReader(reader)));
});
break;
// Exceptions
case ExceptionsAttribute.AttributeName:
_exceptions = new LazyValue <IList <ClassReference> >(() =>
{
var reader = new MemoryBigEndianReader(attribute.Contents);
var attr = ExceptionsAttribute.FromReader(reader);
return(attr.Exceptions
.Select(index => classImage.ResolveClass(index))
.ToList());
});
break;
default:
ExtraAttributes.Add(name, attribute.Clone());
break;
}
}
}
internal DynamicInvocation(JavaClassImage image, InvokeDynamicInfo dynamicInfo)
{
_bootstrapMethod = new LazyValue <BootstrapMethod>(
() => image.ResolveBootstrapMethod(dynamicInfo.BootstrapMethodIndex));
if (image.ClassFile.ConstantPool.ResolveConstant(dynamicInfo.NameAndTypeIndex) is NameAndTypeInfo nameAndType)
{
_methodName = new LazyValue <string>(
() => image.ClassFile.ConstantPool.ResolveString(nameAndType.NameIndex));
_methodDescriptor = new LazyValue <MethodDescriptor>(
() => MethodDescriptor.FromString(image.ClassFile.ConstantPool.ResolveString(nameAndType.DescriptorIndex)));
}
else
{
_methodName = new LazyValue <string>();
_methodDescriptor = new LazyValue <MethodDescriptor>();
}
}
internal FieldReference(JavaClassImage classImage, FieldRefInfo fieldRefInfo)
{
_name = new LazyValue <string>(() =>
{
var constantInfo = classImage.ClassFile.ConstantPool.ResolveConstant(fieldRefInfo.NameAndTypeIndex);
return(constantInfo is NameAndTypeInfo nameAndTypeInfo
? classImage.ClassFile.ConstantPool.ResolveString(nameAndTypeInfo.NameIndex) ??
$"<<<INVALID({nameAndTypeInfo.NameIndex})>>>"
: $"<<<INVALID({fieldRefInfo.NameAndTypeIndex})>>>");
});
_descriptor = new LazyValue <FieldDescriptor>(() =>
{
var constantInfo = classImage.ClassFile.ConstantPool.ResolveConstant(fieldRefInfo.NameAndTypeIndex);
return(constantInfo is NameAndTypeInfo nameAndTypeInfo
? classImage.ResolveFieldDescriptor(nameAndTypeInfo.DescriptorIndex)
: null);
});
_declaringClass = new LazyValue <ClassReference>(() =>
classImage.ResolveClass(fieldRefInfo.ClassIndex));
}
internal ClassReference(JavaClassImage classImage, ClassInfo classInfo)
{
_name = new LazyValue <string>(() =>
classImage.ClassFile.ConstantPool.ResolveString(classInfo.NameIndex) ?? $"<<<INVALID({classInfo.NameIndex})>>>");
}
