public JavaClassImage(JavaClassFile classFile)
{
ClassFile = classFile;
RootClass = new ClassDefinition(this);
MajorVersion = classFile.MajorVersion;
MinorVersion = classFile.MinorVersion;
// Attributes
foreach (var attr in classFile.Attributes)
{
string name = 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(classFile.ConstantPool.ResolveString(sourceFile.ConstantPoolIndex));
});
break;
case BootstrapMethodsAttribute.AttributeName:
_bootstrapMethodsAttribute = BootstrapMethodsAttribute.FromReader(new MemoryBigEndianReader(attr.Contents));
break;
default:
ExtraAttributes.Add(name, attr.Clone());
break;
}
}
}
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;
}
}
}
