internal AbcMethod DefineMethod(Sig sig, AbcCoder coder)
{
var method = new AbcMethod
{
ReturnType = sig.ReturnType != null
? DefineTypeNameSafe(sig.ReturnType)
: null
};
if (sig.Args != null)
{
AddParameters(method.Parameters, sig.Args);
}
var body = new AbcMethodBody(method);
AddMethod(method);
if (coder != null)
{
var code = new AbcCode(this);
coder(code);
body.Finish(code);
}
return(method);
}
public static AbcTrait CreateMethod(AbcMethod method, AbcMultiname name)
{
var t = CreateMethod(method);
t.Name = name;
return(t);
}
public void Read(SwfReader reader)
{
_method = reader.ReadAbcMethod();
_method.Body = this;
MaxStackDepth = (int)reader.ReadUIntEncoded();
LocalCount = (int)reader.ReadUIntEncoded();
MinScopeDepth = (int)reader.ReadUIntEncoded();
MaxScopeDepth = (int)reader.ReadUIntEncoded();
int len = (int)reader.ReadUIntEncoded();
var code = reader.ReadUInt8(len);
_exceptions.Read(reader);
_traits.Read(reader);
_il = new ILStream();
if (len > 0)
{
var codeReader = new SwfReader(code)
{
ABC = reader.ABC
};
_il.Read(this, codeReader);
}
}
private AbcMultiname BuildReturnType(object returnType, AbcMethod method)
{
if (returnType == null)
{
return(Abc.DefineTypeName(AvmTypeCode.Void));
}
var generator = Abc.Generator;
var source = returnType as IMethod;
if (source != null)
{
return(generator.MethodBuilder.BuildReturnType(method, source));
}
var type = returnType as IType;
if (type != null)
{
return(generator.TypeBuilder.BuildReturnType(type));
}
return(Abc.DefineTypeNameSafe(returnType));
}
//Used to define static initializer for interfaces
public AbcMethod DefineEmptyAbstractMethod()
{
var method = new AbcMethod();
Methods.Add(method);
return(method);
}
public void CopyFrom(AbcMethod method)
{
if (method == null)
{
throw new ArgumentNullException("method");
}
CopyFrom(method.Parameters);
}
/// <summary>
/// Determines whether the given <see cref="AbcMethod"/> is defined in this ABC file.
/// </summary>
/// <param name="method">method to check</param>
/// <returns></returns>
public bool IsDefined(AbcMethod method)
{
int index = method.Index;
if (index < 0 || index >= Methods.Count)
{
return(false);
}
return(ReferenceEquals(Methods[index], method));
}
private void ImportTraits(IAbcTraitProvider from, IAbcTraitProvider to, ref AbcMethod importMethod)
{
foreach (var trait in from.Traits)
{
var t2 = ImportTrait(trait);
if (trait.Method == importMethod)
{
importMethod = t2.Method;
}
to.Traits.Add(t2);
}
}
private void ImportParams(AbcMethod from, AbcMethod to)
{
foreach (var p in from.Parameters)
{
var p2 = new AbcParameter
{
IsOptional = p.IsOptional,
Name = ImportConst(p.Name),
Type = ImportType(p.Type),
Value = ImportValue(p.Value)
};
to.Parameters.Add(p2);
}
}
public void AddMethod(AbcMethod method)
{
if (method == null)
{
throw new ArgumentNullException("method");
}
Methods.Add(method);
var body = method.Body;
if (body != null)
{
MethodBodies.Add(body);
}
}
private AbcMethod ImportMethod(AbcMethod method)
{
if (IsDefined(method))
{
return(method);
}
if (method.ImportedMethod != null)
{
return(method.ImportedMethod);
}
var m = new AbcMethod
{
Name = ImportConst(method.Name),
Flags = method.Flags,
IsInitializer = method.IsInitializer,
OriginalMethod = method,
Method = method.Method,
ReturnType = ImportType(method.ReturnType)
};
method.ImportedMethod = m;
method.IsImported = true;
if (m.Method != null)
{
SetData(m.Method, m);
}
ImportParams(method, m);
Methods.Add(m);
var body = method.Body;
if (body != null)
{
m.Body = ImportMethodBody(body, m);
}
return(m);
}
private static void DumpAccessor(TextWriter writer, AbcMethod m, string tab)
{
if (m != null)
{
if (AbcDumpService.DumpCode && !m.IsAbstract)
{
writer.WriteLine(tab + "get");
writer.WriteLine(tab + "{");
if (m.Body != null)
{
m.Body.IL.Dump(writer, tab + "\t");
}
writer.WriteLine(tab + "}");
}
else
{
writer.WriteLine(tab + "get;");
}
}
}
public static Sig @from(AbcMethod prototype)
{
if (prototype == null)
{
throw new ArgumentNullException("prototype");
}
var t = prototype.Trait;
if (t == null)
{
throw new InvalidOperationException();
}
return(new Sig(t.Name, prototype.ReturnType, prototype)
{
Kind = t.Kind,
Semantics = t.MethodSemantics,
});
}
private AbcMethodBody ImportMethodBody(AbcMethodBody from, AbcMethod method)
{
if (from.ImportedBody != null)
{
return(from.ImportedBody);
}
var body = new AbcMethodBody(method);
from.ImportedBody = body;
body.MaxStackDepth = from.MaxStackDepth;
body.LocalCount = from.LocalCount;
body.MinScopeDepth = from.MinScopeDepth;
body.MaxScopeDepth = from.MaxScopeDepth;
MethodBodies.Add(body);
ImportTraits(from, body);
ImportExceptions(body, from);
ImportIL(body, from);
body.TranslateIndices();
body.ResolveExceptionOffsets(this);
return(body);
}
private AbcInstance ImportInstanceCore(AbcInstance source, ref AbcMethod importMethod)
{
var instance = new AbcInstance
{
Name = ImportConst(source.Name),
IsMixin = source.IsMixin,
IsStyleMixin = source.IsStyleMixin,
ImportedFrom = source
};
source.ImportedInstance = instance;
var klass = new AbcClass(instance);
AddInstance(instance);
AbcInstance superType;
instance.BaseTypeName = ImportType(source.BaseTypeName, out superType);
instance.BaseInstance = superType;
instance.Flags = source.Flags;
instance.ProtectedNamespace = ImportConst(source.ProtectedNamespace);
instance.Type = source.Type;
if (instance.Type != null)
{
SetData(instance.Type, instance);
}
foreach (var iname in source.Interfaces)
{
AbcInstance ifaceInstance;
var mn = ImportType(iname, out ifaceInstance);
if (mn == null)
{
throw new InvalidOperationException();
}
//NOTE: Flex Compiler Bug!!!
//I found that within SWC files interface names must be always declared as multinames (with namespace set)
//This is true for flex 3.
if (IsSwcScript)
{
mn = ToMultiname(mn);
}
instance.Interfaces.Add(mn);
if (ifaceInstance != null)
{
ifaceInstance.Implementations.Add(instance);
instance.Implements.Add(ifaceInstance);
}
}
instance.Initializer = ImportMethod(source.Initializer);
klass.Initializer = ImportMethod(source.Class.Initializer);
if (importMethod == source.Initializer)
{
importMethod = instance.Initializer;
}
if (importMethod == source.Class.Initializer)
{
importMethod = klass.Initializer;
}
ImportTraits(source, instance, ref importMethod);
ImportTraits(source.Class, klass, ref importMethod);
return(instance);
}
public AbcInstance ImportInstance(AbcInstance instance, ref AbcMethod importMethod)
{
if (instance == null)
{
return(null);
}
if (instance.IsNative)
{
return(instance);
}
if (instance.UseExternalLinking)
{
if (instance.IsLinkedExternally)
{
return(instance);
}
if (AllowExternalLinking)
{
instance.IsLinkedExternally = true;
if (instance.InSwc)
{
var abc = instance.Abc;
if (!abc._importing)
{
Debug.Assert(abc != this);
Import(abc);
}
}
else
{
ImportAssets(instance);
}
return(instance);
}
}
if (IsDefined(instance))
{
return(instance);
}
if (instance.ImportedInstance != null)
{
return(instance.ImportedInstance);
}
if (instance.InSwc)
{
var abc = instance.Abc;
if (!abc._importing)
{
Debug.Assert(abc != this);
Import(abc);
}
}
if (instance.ImportedInstance != null)
{
return(instance.ImportedInstance);
}
if (!IsImportTypeExternally)
{
var superType = instance.BaseInstance;
if (superType != null)
{
ImportInstance(superType);
}
}
if (instance.ImportedInstance != null)
{
return(instance.ImportedInstance);
}
ImportAbcFiles(instance);
if (instance.ImportedInstance != null)
{
return(instance.ImportedInstance);
}
var result = ImportInstanceCore(instance, ref importMethod);
//ImportAbcFiles(instance);
return(result);
}
/// <summary>
/// Imports given instance
/// </summary>
/// <param name="instance"></param>
/// <returns></returns>
public AbcInstance ImportInstance(AbcInstance instance)
{
AbcMethod importMethod = null;
return(ImportInstance(instance, ref importMethod));
}
public AbcMethodBody(AbcMethod method) : this()
{
Method = method;
}
public void Read(SwfReader reader)
{
SlotId = (int)reader.ReadUIntEncoded(); //slot_id
Method = reader.ReadAbcMethod(); //function
}
public void Read(SwfReader reader)
{
SlotId = (int)reader.ReadUIntEncoded(); //disp_id
Method = reader.ReadAbcMethod(); //method
}
public AbcTrait(AbcTraitKind kind, AbcMethod method)
{
Kind = kind;
Method = method;
}
public static AbcTrait CreateMethod(AbcMethod method)
{
return(new AbcTrait(AbcTraitKind.Method, method));
}
internal AbcMethod DefineMethod(Sig sig, AbcCoder coder, Action <AbcMethod> complete)
{
if (sig == null)
{
throw new ArgumentNullException("sig");
}
if (!sig.IsInitilizer && sig.Name == null)
{
throw new InvalidOperationException();
}
var klass = Class;
if (klass == null)
{
throw new InvalidOperationException(string.Format("Class is not defined yet for Instance {0}", FullName));
}
AbcMultiname traitName = null;
AbcTrait trait;
bool isStatic = (sig.Semantics & MethodSemantics.Static) != 0;
var traits = isStatic ? klass.Traits : Traits;
if (sig.IsInitilizer)
{
if (Initializer != null)
{
throw new InvalidOperationException();
}
}
else
{
traitName = Abc.DefineName(sig.Name);
trait = traits.Find(traitName, sig.Kind);
if (trait != null)
{
return(trait.Method);
}
}
var method = new AbcMethod
{
Method = sig.Source
};
var generator = Abc.Generator;
if (sig.Source != null)
{
generator.SetData(sig.Source, method);
}
AbcMethodBody body = null;
if (sig.IsAbstract)
{
if (coder != null)
{
throw new InvalidOperationException();
}
}
else
{
body = new AbcMethodBody(method);
}
Abc.AddMethod(method);
if (sig.IsInitilizer)
{
Initializer = method;
}
else
{
//for non initializer method we must define trait and return type
method.ReturnType = BuildReturnType(sig.ReturnType, method);
trait = AbcTrait.CreateMethod(method, traitName);
trait.Kind = sig.Kind;
if (!isStatic)
{
trait.IsVirtual = (sig.Semantics & MethodSemantics.Virtual) != 0;
trait.IsOverride = (sig.Semantics & MethodSemantics.Override) != 0;
}
traits.Add(trait);
}
if (sig.Args != null)
{
if (sig.Args.Length == 1 && sig.Args[0] is IMethod)
{
var m = (IMethod)sig.Args[0];
if (generator == null)
{
throw new InvalidOperationException();
}
generator.MethodBuilder.BuildParameters(method, m);
}
else
{
Abc.AddParameters(method.Parameters, sig.Args);
}
}
if (body != null && coder != null)
{
var code = new AbcCode(Abc);
coder(code);
body.Finish(code);
}
if (complete != null)
{
complete(method);
}
return(method);
}
