/*-------------------- Constructors ---------------------------------*/
internal FieldRVA(FieldDef field, DataConstant data)
{
this.field = field;
this.data = data;
tabIx = MDTable.FieldRVA;
}
internal override sealed void Resolve(PEReader buff)
{
field = (FieldDef)buff.GetElement(MDTable.Field,fieldIx);
field.AddDataValue(buff.GetDataConstant(rva,field.GetFieldType()));
}
/*-------------------- Constructors ---------------------------------*/
internal FieldLayout(FieldDef field, uint offset)
{
this.field = field;
this.offset = offset;
tabIx = MDTable.FieldLayout;
}
internal override sealed void Resolve(PEReader buff)
{
field = (FieldDef)buff.GetElement(MDTable.Field,fieldIx);
field.SetOffset(offset);
}
internal static void Read(PEReader buff, TableRow[] fields)
{
for (int i=0; i < fields.Length; i++)
fields[i] = new FieldDef(buff);
}
/// <summary>
/// Add a field to this class
/// </summary>
/// <param name="f">Descriptor for the field to be added</param>
public void AddField(FieldDef f)
{
FieldDef field = (FieldDef)FindField(f.Name());
if (field != null)
throw new DescriptorException("Field " + field.NameString());
f.SetParent(this);
fields.Add(f);
}
/// <summary>
/// Add a field to this class
/// </summary>
/// <param name="name">field name</param>
/// <param name="fType">field type</param>
/// <returns>a descriptor for this new field</returns>
public FieldDef AddField(string name, Type fType)
{
FieldDef field = (FieldDef)FindField(name);
if (field != null)
throw new DescriptorException("Field " + field.NameString());
field = new FieldDef(name,fType,this);
fields.Add(field);
return field;
}
/// <summary>
/// Add a "global" field to this module
/// </summary>
/// <param name="fld">The field to be added</param>
public void AddField(FieldDef fld)
{
defaultClass.AddField(fld);
}
internal override void GenCode0(CodeGenContext context)
{
bool scope_created, super_created;
CodeGenContext newContext = new CodeGenContext(context);
// scope and super must be evaluated in surrounding scope and passed to Init method
ISimple scope = PushScope(context, out scope_created);
ISimple super = PushSuper(context, out super_created);
string basename = ID.ToDotNetName(name.vid);
// BBTAG: try and get the superclass
PERWAPI.Class superClass = Runtime.ObjectRef;
bool superClassFound = false;
PERWAPI.Method superClassConstructor0 = null;
PERWAPI.Method superClassConstructor1 = Runtime.Object.ctor;
if (this is CLASS)
{
superClass = ((CLASS)this).GetSuperClassRef(newContext);
if (superClass != null)
{
superClassFound = true;
superClassConstructor0 = superClass.GetMethodDesc(".ctor", new Type[0]);
if (superClassConstructor0 is MethodDef)
superClassConstructor0 = ((MethodDef)superClassConstructor0).MakeRefOf();
superClassConstructor1 = superClass.GetMethodDesc(".ctor", new Type[] { Runtime.ClassRef });
if (superClassConstructor1 is MethodDef)
superClassConstructor1 = ((MethodDef)superClassConstructor1).MakeRefOf();
}
else
superClass = Runtime.ObjectRef;
}
//public class MyClass: Object {
// check if this class has already been created in a referenced DLL
// FIXME: this won't work for nested classes
PERWAPI.Class classRef = ClassSkeleton.FindPERWAPIClass(null, name, context.peFiles);
bool defineInteropClass = (classRef == null);
// if it seems like an extension of a ruby builtin class, don't generate an interop class
// FIXME: this won't work for nested classes
if (Ruby.Runtime.BuiltinClasses.IsBuiltinClass(basename))
{
Compiler.InteropWarning(basename + " is a Ruby built-in class, interop class not generated");
defineInteropClass = false;
}
//ClassDef interopClass = newContext.CreateNestedClass(CurrentInteropClass(), basename, Runtime.ObjectRef); // BBTAG
ClassDef interopClass = null;
if (defineInteropClass)
{
if (superClass is PERWAPI.ClassDef)
interopClass = newContext.CreateNestedClass(CurrentInteropClass(), basename, ((PERWAPI.ClassDef)superClass).MakeRefOf()); // BBTAG
else
interopClass = newContext.CreateNestedClass(CurrentInteropClass(), basename, superClass); // BBTAG
interopClasses.Push(interopClass);
classRef = interopClass;
}
//context.classes[classname] = interopClass;
// BBTAG: create skeleton for this class
ClassSkeleton skeleton;
if (context.currentSkeleton.nestedClasses.ContainsKey(basename))
skeleton = context.currentSkeleton.nestedClasses[basename];
else
skeleton = new ClassSkeleton(basename, classRef);
skeleton.lexicalParent = context.currentSkeleton;
newContext.currentSkeleton = skeleton;
skeleton.lexicalParent.nestedClasses[basename] = skeleton;
if (!superClassFound && this is AST.CLASS && ((AST.CLASS)this).super_class != null && defineInteropClass)
{
// do not add to post pass list if supertype is a built-in Ruby class
//List<string> qualifiedSuperClass = ClassSkeleton.ConstNodeToClassList(((AST.CLASS)this).super_class);
//if (!(qualifiedSuperClass.Count == 1 && Ruby.Runtime.BuiltinClasses.IsBuiltinClass(qualifiedSuperClass[0])))
newContext.postPassList.Add(new ClassSkeletonPostPass(skeleton, interopClass, ((AST.CLASS)this).super_class));
}
// public static Class classname;
int seqNo = 0;
internal_name = basename;
while (FileClass().GetField(internal_name) != null)
internal_name = basename + (seqNo++);
// Define singleton in file class so that it gets initialized by .cctor
singletonField = FileClass().AddField(PERWAPI.FieldAttr.PublicStatic, internal_name, Runtime.ClassRef);
newContext.CurrentRubyClass = singletonField;
// public MyClass() : base(singleton) { };
CodeGenContext class_constructor = null;
if (defineInteropClass)
{
if (interopClass.GetMethod(".ctor", new Type[0]) == null)
{
CodeGenContext class_constructor0 = newContext.CreateConstructor(interopClass);
class_constructor0.ldarg(0);
if (superClassConstructor0 != null)
class_constructor0.call(superClassConstructor0);
else
{
class_constructor0.ldsfld(singletonField);
class_constructor0.call(superClassConstructor1);
}
class_constructor0.ret();
class_constructor0.Close();
}
// public MyClass(Class klass) : base(klass) { };
MethodDef ctor = interopClass.GetMethod(".ctor", new Type[] { Runtime.ClassRef });
//CodeGenContext class_constructor;
if (ctor == null)
{
class_constructor = newContext.CreateConstructor(interopClass, new Param(ParamAttr.Default, "klass", Runtime.ClassRef));
class_constructor.ldarg(0);
class_constructor.ldarg("klass");
class_constructor.call(superClassConstructor1);
class_constructor.ret();
class_constructor.Close();
}
else
{
class_constructor = new CodeGenContext();
class_constructor.Method = ctor;
}
}
// internal static void Init_fullname(object scope, object super, object recv, Frame caller) {
CodeGenContext Init = newContext.CreateMethod(FileClass(), MethAttr.PublicStatic, "Init_" + internal_name, PrimitiveType.Object,
new Param(ParamAttr.Default, "scope", PrimitiveType.Object),
new Param(ParamAttr.Default, "super", PrimitiveType.Object),
new Param(ParamAttr.Default, "recv", PrimitiveType.Object),
new Param(ParamAttr.Default, "caller", Runtime.FrameRef));
skeleton.initMethod = Init.Method;
Init.startMethod(this.location);
AddScopeLocals(Init);
// singleton = scope.define_???(...)
DefineClass(Init, singletonField);
// recv = singleton;
Init.ldsfld(singletonField);
Init.starg("recv");
// Fixme: should be conditional
// singleton.define_allocator(allocator);
if (defineInteropClass)
{
FieldDef allocator = DefineAllocator(newContext, class_constructor.Method);
if (allocator != null)
{
Init.ldsfld(singletonField);
Init.ldsfld(allocator);
Init.call(Runtime.Class.define_alloc_func);
}
}
AddScopeBody(Init);
Init.ReleaseLocal(0, true);
Init.Close();
if (defineInteropClass)
interopClasses.Pop();
// --------------------- Return to old Context ----------------------------
context.newLine(location);
// Init(scope, super, recv, caller);
scope.GenSimple(context);
super.GenSimple(context);
context.ldarg("recv");
context.ldloc(0);
context.call(Init.Method);
context.ReleaseLocal(super, super_created);
context.ReleaseLocal(scope, scope_created);
}