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using UnityEngine;
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using System.Collections;
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using System.Collections.Generic;
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using System;
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using System.Reflection;
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using System.Text.RegularExpressions;
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#if UNITY_EDITOR
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using UnityEditor;
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#endif
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namespace Gaia
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{
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/// <summary>
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/// Manages extensions
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/// </summary>
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public class GaiaExtensionManager
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{
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/// <summary>
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/// The installed extensions
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/// </summary>
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private Dictionary<string, GaiaCompatiblePublisher> m_extensions = new Dictionary<string, GaiaCompatiblePublisher>();
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/// <summary>
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/// Scan for installed extensions
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/// </summary>
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public void ScanForExtensions()
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{
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#if UNITY_EDITOR
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if (EditorApplication.isCompiling)
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{
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return;
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}
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#endif
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m_extensions.Clear();
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string[] parsedName;
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string publisherName = "", packageName = "", packageImage = "", packageDescription = "", packageURL = "";
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MethodInfo method;
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MethodInfo[] methods;
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List<MethodInfo> extensionMethods;
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List<Type> types = GetTypesInNamespace("Gaia.GX.");
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//Process installed extensions
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for (int typeIdx = 0; typeIdx < types.Count; typeIdx++)
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{
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//Get publisher and package name
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parsedName = types[typeIdx].FullName.Split('.');
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publisherName = Regex.Replace(parsedName[2], "(\\B[A-Z])", " $1");
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packageName = Regex.Replace(parsedName[3], "(\\B[A-Z])", " $1");
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//Grab the extension methods, update publisher and package name if necessary
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methods = types[typeIdx].GetMethods(BindingFlags.Public | BindingFlags.Static);
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extensionMethods = new List<MethodInfo>();
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for (int methodIdx = 0; methodIdx < methods.Length; methodIdx++)
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{
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method = methods[methodIdx];
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if (method.Name.StartsWith("GX_"))
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{
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extensionMethods.Add(method);
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}
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else if (method.Name == "GetPublisherName")
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{
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publisherName = (string)method.Invoke(null, null);
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}
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else if (method.Name == "GetPackageName")
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{
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packageName = (string)method.Invoke(null, null);
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}
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}
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//See if we can locate the publisher, if not then add them
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GaiaCompatiblePublisher publisher = null;
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if (!m_extensions.TryGetValue(publisherName, out publisher))
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{
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publisher = new GaiaCompatiblePublisher();
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publisher.m_publisherName = publisherName;
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publisher.m_compatibleFoldedOut = false;
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publisher.m_installedFoldedOut = false;
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m_extensions.Add(publisherName, publisher);
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}
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//See if we can locate the extension, if not then add it
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GaiaCompatiblePackage package = publisher.GetPackage(packageName);
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if (package == null)
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{
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package = new GaiaCompatiblePackage();
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package.m_compatibleFoldedOut = false;
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package.m_installedFoldedOut = false;
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package.m_packageName = packageName;
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publisher.AddPackage(package);
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}
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if (extensionMethods.Count > 0)
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{
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package.m_isInstalled = true;
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}
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else
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{
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package.m_isInstalled = false;
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}
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package.m_methods = new List<MethodInfo>(extensionMethods);
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}
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//Then process compatible extensions
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types = GetTypesInNamespace("Gaia.GXC.");
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for (int typeIdx = 0; typeIdx < types.Count; typeIdx++)
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{
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//Get publisher and package name
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parsedName = types[typeIdx].FullName.Split('.');
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publisherName = Regex.Replace(parsedName[2], "(\\B[A-Z])", " $1");
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packageName = Regex.Replace(parsedName[3], "(\\B[A-Z])", " $1");
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//Grab the extension methods, update publisher and package name if necessary
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methods = types[typeIdx].GetMethods(BindingFlags.Public | BindingFlags.Static);
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for (int methodIdx = 0; methodIdx < methods.Length; methodIdx++)
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{
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method = methods[methodIdx];
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if (method.Name == "GetPublisherName")
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{
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publisherName = (string)method.Invoke(null, null);
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}
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else if (method.Name == "GetPackageName")
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{
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packageName = (string)method.Invoke(null, null);
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}
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else if (method.Name == "GetPackageImage")
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{
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packageImage = (string)method.Invoke(null, null);
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}
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else if (method.Name == "GetPackageDescription")
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{
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packageDescription = (string)method.Invoke(null, null);
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}
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else if (method.Name == "GetPackageURL")
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{
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packageURL = (string)method.Invoke(null, null);
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}
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}
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//See if we can locate the publisher, if not then add them
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GaiaCompatiblePublisher publisher = null;
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if (!m_extensions.TryGetValue(publisherName, out publisher))
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{
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publisher = new GaiaCompatiblePublisher();
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publisher.m_publisherName = publisherName;
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publisher.m_compatibleFoldedOut = false;
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publisher.m_installedFoldedOut = false;
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m_extensions.Add(publisherName, publisher);
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}
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//See if we can locate the extension, if not then add it
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GaiaCompatiblePackage package = publisher.GetPackage(packageName);
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if (package == null)
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{
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package = new GaiaCompatiblePackage();
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package.m_compatibleFoldedOut = false;
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package.m_installedFoldedOut = false;
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package.m_packageName = packageName;
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publisher.AddPackage(package);
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}
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package.m_isCompatible = true;
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package.m_packageDescription = packageDescription;
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package.m_packageImageName = packageImage;
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package.m_packageURL = packageURL;
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}
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}
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/// <summary>
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/// Ruturn the number of installed extensions
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/// </summary>
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/// <returns>Number of installed extensions</returns>
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public int GetInstalledExtensionCount()
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{
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int iec = 0;
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foreach (GaiaCompatiblePublisher publisher in m_extensions.Values)
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{
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iec += publisher.InstalledPackages();
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}
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return iec;
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}
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/// <summary>
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/// Get a list of the current publishers
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/// </summary>
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/// <returns></returns>
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public List<GaiaCompatiblePublisher> GetPublishers()
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{
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List<GaiaCompatiblePublisher> publishers = new List<GaiaCompatiblePublisher>(m_extensions.Values);
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publishers.Sort((a, b) => a.m_publisherName.CompareTo(b.m_publisherName));
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return publishers;
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}
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/// <summary>
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/// Scan unity cimpled assemblies for all the types in the provided namespace
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/// </summary>
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/// <param name="nameSpace">Namespace to search</param>
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/// <returns>Listr of types</returns>
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public List<Type> GetTypesInNamespace(string nameSpace)
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{
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List<Type> matchingTypes = new List<Type>();
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int assyIdx, typeIdx;
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System.Type[] types;
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System.Reflection.Assembly[] assemblies = System.AppDomain.CurrentDomain.GetAssemblies();
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for (assyIdx = 0; assyIdx < assemblies.Length; assyIdx++)
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{
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if (assemblies[assyIdx].FullName.StartsWith("Assembly"))
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{
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types = assemblies[assyIdx].GetTypes();
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for (typeIdx = 0; typeIdx < types.Length; typeIdx++)
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{
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if (!string.IsNullOrEmpty(types[typeIdx].Namespace))
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{
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if (types[typeIdx].Namespace.StartsWith(nameSpace))
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{
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matchingTypes.Add(types[typeIdx]);
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}
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}
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}
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}
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}
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return matchingTypes;
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}
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}
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}
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