private PacketValue[] GetIncomingStructure(ASInstance instance, ASMethod method) { if (method.Body.Exceptions.Count > 0) { return(null); } ASCode code = method.Body.ParseCode(); if (code.JumpExits.Count > 0 || code.SwitchExits.Count > 0) { return(null); } List <PacketValue> structure = new List <PacketValue>(); ABCFile abc = method.GetABC(); for (int i = 0; i < code.Count; i++) { ASInstruction instruction = code[i]; if (instruction.OP != OPCode.GetLocal_1) { continue; } ASInstruction next = code[++i]; switch (next.OP) { case OPCode.CallProperty: { CallPropertyIns callProperty = (CallPropertyIns)next; if (callProperty.ArgCount > 0) { ASMultiname propertyName = null; ASInstruction previous = code[i - 2]; switch (previous.OP) { case OPCode.GetLex: { GetLexIns getLex = (GetLexIns)previous; propertyName = getLex.TypeName; break; } case OPCode.ConstructProp: { ConstructPropIns constructProp = (ConstructPropIns)previous; propertyName = constructProp.PropertyName; break; } case OPCode.GetLocal_0: { propertyName = instance.QName; break; } } ASInstance innerInstance = abc.GetInstance(propertyName); ASMethod innerMethod = innerInstance.GetMethod(callProperty.PropertyName.Name, null, callProperty.ArgCount); if (innerMethod == null) { ASClass innerClass = abc.GetClass(propertyName); innerMethod = innerClass.GetMethod(callProperty.PropertyName.Name, null, callProperty.ArgCount); } PacketValue[] innerStructure = GetIncomingStructure(innerInstance, innerMethod); if (innerStructure == null) { return(null); } structure.AddRange(innerStructure); } else { if (!TryGetPacketValue(callProperty.PropertyName, null, out PacketValue piece)) { return(null); } structure.Add(piece); } break; } case OPCode.ConstructProp: { ConstructPropIns constructProp = (ConstructPropIns)next; ASInstance innerInstance = abc.GetInstance(constructProp.PropertyName); PacketValue[] innerStructure = GetIncomingStructure(innerInstance, innerInstance.Constructor); if (innerStructure == null) { return(null); } structure.AddRange(innerStructure); break; } case OPCode.ConstructSuper: { ASInstance superInstance = abc.GetInstance(instance.Super); PacketValue[] innerStructure = GetIncomingStructure(superInstance, superInstance.Constructor); if (innerStructure == null) { return(null); } structure.AddRange(innerStructure); break; } case OPCode.CallSuper: { CallSuperIns callSuper = (CallSuperIns)next; ASInstance superInstance = abc.GetInstance(instance.Super); ASMethod superMethod = superInstance.GetMethod(callSuper.MethodName.Name, null, callSuper.ArgCount); PacketValue[] innerStructure = GetIncomingStructure(superInstance, superMethod); if (innerStructure == null) { return(null); } structure.AddRange(innerStructure); break; } case OPCode.CallPropVoid: { CallPropVoidIns callPropVoid = (CallPropVoidIns)next; if (callPropVoid.ArgCount != 0) { return(null); } if (!TryGetPacketValue(callPropVoid.PropertyName, null, out PacketValue piece)) { return(null); } structure.Add(piece); break; } default: return(null); } } return(structure.Count == 0 ? null : structure.ToArray()); }
private string GetIncomingStructure(ASInstance instance, ASMethod method) { if (method.Body.Exceptions.Count > 0) { return(null); } ASCode code = method.Body.ParseCode(); if (code.JumpExits.Count > 0 || code.SwitchExits.Count > 0) { return(null); } string structure = null; ABCFile abc = method.GetABC(); for (int i = 0; i < code.Count; i++) { ASInstruction instruction = code[i]; if (instruction.OP != OPCode.GetLocal_1) { continue; } ASInstruction next = code[++i]; switch (next.OP) { case OPCode.CallProperty: { var callProperty = (CallPropertyIns)next; if (callProperty.ArgCount > 0) { ASMultiname propertyName = null; ASInstruction previous = code[i - 2]; switch (previous.OP) { case OPCode.GetLex: { var getLex = (GetLexIns)previous; propertyName = getLex.TypeName; break; } case OPCode.ConstructProp: { var constructProp = (ConstructPropIns)previous; propertyName = constructProp.PropertyName; break; } case OPCode.GetLocal_0: { propertyName = instance.QName; break; } } ASInstance innerInstance = abc.GetInstance(propertyName); ASMethod innerMethod = innerInstance.GetMethod(callProperty.PropertyName.Name, null, callProperty.ArgCount); if (innerMethod == null) { ASClass innerClass = abc.GetClass(propertyName); innerMethod = innerClass.GetMethod(callProperty.PropertyName.Name, null, callProperty.ArgCount); } string innerStructure = GetIncomingStructure(innerInstance, innerMethod); if (string.IsNullOrWhiteSpace(innerStructure)) { return(null); } structure += innerStructure; } else { if (!TryGetStructurePiece(callProperty.PropertyName, null, out char piece)) { return(null); } structure += piece; } break; } case OPCode.ConstructProp: { var constructProp = (ConstructPropIns)next; ASInstance innerInstance = abc.GetInstance(constructProp.PropertyName); string innerStructure = GetIncomingStructure(innerInstance, innerInstance.Constructor); if (string.IsNullOrWhiteSpace(innerStructure)) { return(null); } structure += innerStructure; break; } case OPCode.ConstructSuper: { ASInstance superInstance = abc.GetInstance(instance.Super); string innerStructure = GetIncomingStructure(superInstance, superInstance.Constructor); if (string.IsNullOrWhiteSpace(innerStructure)) { return(null); } structure += innerStructure; break; } case OPCode.CallSuper: { var callSuper = (CallSuperIns)next; ASInstance superInstance = abc.GetInstance(instance.Super); ASMethod superMethod = superInstance.GetMethod(callSuper.MethodName.Name, null, callSuper.ArgCount); string innerStructure = GetIncomingStructure(superInstance, superMethod); if (string.IsNullOrWhiteSpace(innerStructure)) { return(null); } structure += innerStructure; break; } case OPCode.CallPropVoid: { var callPropVoid = (CallPropVoidIns)next; if (callPropVoid.ArgCount != 0) { return(null); } if (!TryGetStructurePiece(callPropVoid.PropertyName, null, out char piece)) { return(null); } structure += piece; break; } default: return(null); } } return(structure); }