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1855 lines
84 KiB
1855 lines
84 KiB
using IPA.Config.Data;
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using IPA.Config.Stores.Attributes;
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using IPA.Logging;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Reflection;
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using System.Reflection.Emit;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using System.Linq.Expressions;
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using System.Runtime.CompilerServices;
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using System.IO;
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using Boolean = IPA.Config.Data.Boolean;
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using System.Collections;
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using IPA.Utilities;
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using System.ComponentModel;
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#if NET3
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using Net3_Proxy;
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using Array = Net3_Proxy.Array;
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#endif
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[assembly: InternalsVisibleTo(IPA.Config.Stores.GeneratedStore.AssemblyVisibilityTarget)]
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namespace IPA.Config.Stores
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{
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/// <summary>
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/// A class providing an extension for <see cref="Config"/> to make it easy to use generated
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/// config stores.
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/// </summary>
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public static class GeneratedStore
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{
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/// <summary>
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/// The name of the assembly that internals must be visible to to allow internal protection.
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/// </summary>
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public const string AssemblyVisibilityTarget = GeneratedStoreImpl.GeneratedAssemblyName;
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/// <summary>
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/// Creates a generated <see cref="IConfigStore"/> of type <typeparamref name="T"/>, registers it to
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/// the <see cref="Config"/> object, and returns it. This also forces a synchronous config load via
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/// <see cref="Config.LoadSync"/> if <paramref name="loadSync"/> is <see langword="true"/>.
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/// </summary>
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/// <remarks>
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/// <para>
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/// <typeparamref name="T"/> must be a public non-<see langword="sealed"/> class.
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/// It can also be internal, but in that case, then your assembly must have the following attribute
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/// to allow the generated code to reference it.
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/// <code>
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/// [assembly: InternalsVisibleTo(IPA.Config.Stores.GeneratedStore.AssemblyVisibilityTarget)]
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/// </code>
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/// </para>
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/// <para>
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/// Only fields and properties that are public or protected will be considered, and only properties
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/// where both the getter and setter are public or protected are considered. Any fields or properties
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/// with an <see cref="IgnoreAttribute"/> applied to them are also ignored. Having properties be <see langword="virtual"/> is not strictly
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/// necessary, however it allows the generated type to keep track of changes and lock around them so that the config will auto-save.
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/// </para>
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/// <para>
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/// All of the attributes in the <see cref="Attributes"/> namespace are handled as described by them.
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/// </para>
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/// <para>
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/// If the <typeparamref name="T"/> declares a public or protected, <see langword="virtual"/>
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/// method <c>Changed()</c>, then that method may be called to artificially signal to the runtime that the content of the object
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/// has changed. That method will also be called after the write locks are released when a property is set anywhere in the owning
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/// tree. This will only be called on the outermost generated object of the config structure, even if the change being signaled
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/// is somewhere deep into the tree. TODO: is this a good idea?
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/// </para>
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/// <para>
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/// Similarly, <typeparamref name="T"/> can declare a public or protected, <see langword="virtual"/>
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/// method <c>OnReload()</c>, which will be called on the filesystem reader thread after the object has been repopulated with new data
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/// values. It will be called <i>after</i> the write lock for this object is released. This will only be called on the outermost generated
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/// object of the config structure.
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/// </para>
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/// <para>
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/// Similarly, <typeparamref name="T"/> can declare a public or protected, <see langword="virtual"/>
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/// method <c>CopyFrom(ConfigType)</c> (the first parameter is the type it is defined on), which may be called to copy the properties from
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/// another object of its type easily, and more importantly, as only one change. Its body will be executed after the values have been copied.
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/// </para>
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/// <para>
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/// Similarly, <typeparamref name="T"/> can declare a public or protected, <see langword="virtual"/>
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/// method <c>ChangeTransaction()</c> returning <see cref="IDisposable"/>, which may be called to get an object representing a transactional
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/// change. This may be used to change a lot of properties at once without triggering a save multiple times. Ideally, this is used in a
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/// <see langword="using"/> block or declaration. The <see cref="IDisposable"/> returned from your implementation will have its
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/// <see cref="IDisposable.Dispose"/> called <i>after</i> <c>Changed()</c> is called, but <i>before</i> the write lock is released.
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/// Unless you have a very good reason to use the nested <see cref="IDisposable"/>, avoid it.
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/// </para>
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/// <para>
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/// If <typeparamref name="T"/> is marked with <see cref="NotifyPropertyChangesAttribute"/>, the resulting object will implement
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/// <see cref="INotifyPropertyChanged"/>. Similarly, if <typeparamref name="T"/> implements <see cref="INotifyPropertyChanged"/>,
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/// the resulting object will implement it and notify it too.
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/// </para>
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/// </remarks>
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/// <typeparam name="T">the type to wrap</typeparam>
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/// <param name="cfg">the <see cref="Config"/> to register to</param>
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/// <param name="loadSync">whether to synchronously load the content, or trigger an async load</param>
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/// <returns>a generated instance of <typeparamref name="T"/> as a special <see cref="IConfigStore"/></returns>
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public static T Generated<T>(this Config cfg, bool loadSync = true) where T : class
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{
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var ret = GeneratedStoreImpl.Create<T>();
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cfg.SetStore(ret as IConfigStore);
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if (loadSync)
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cfg.LoadSync();
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else
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cfg.LoadAsync();
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return ret;
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}
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/// <summary>
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/// Creates a generated store outside of the context of the config system.
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/// </summary>
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/// <remarks>
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/// See <see cref="Generated{T}(Config, bool)"/> for more information about how it behaves.
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/// </remarks>
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/// <typeparam name="T">the type to wrap</typeparam>
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/// <returns>a generated instance of <typeparamref name="T"/> implementing functionality described by <see cref="Generated{T}(Config, bool)"/></returns>
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/// <seealso cref="Generated{T}(Config, bool)"/>
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public static T Create<T>() where T : class
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=> GeneratedStoreImpl.Create<T>();
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}
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internal static class GeneratedStoreImpl
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{
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internal interface IGeneratedStore
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{
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Type Type { get; }
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IGeneratedStore Parent { get; }
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Impl Impl { get; }
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void OnReload();
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void Changed();
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IDisposable ChangeTransaction();
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Value Serialize();
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void Deserialize(Value val);
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}
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internal interface IGeneratedStore<T> : IGeneratedStore where T : class
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{
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void CopyFrom(T source, bool useLock);
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}
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internal interface IGeneratedPropertyChanged : INotifyPropertyChanged
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{
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PropertyChangedEventHandler PropertyChangedEvent { get; }
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}
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internal class Impl : IConfigStore
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{
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private readonly IGeneratedStore generated;
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private bool inChangeTransaction = false;
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//private bool changedInTransaction = false;
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internal static ConstructorInfo Ctor = typeof(Impl).GetConstructor(new[] { typeof(IGeneratedStore) });
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public Impl(IGeneratedStore store) => generated = store;
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private readonly AutoResetEvent resetEvent = new AutoResetEvent(false);
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public WaitHandle SyncObject => resetEvent;
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public static WaitHandle ImplGetSyncObject(IGeneratedStore s) => FindImpl(s).SyncObject;
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internal static MethodInfo ImplGetSyncObjectMethod = typeof(Impl).GetMethod(nameof(ImplGetSyncObject));
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public ReaderWriterLockSlim WriteSyncObject { get; } = new ReaderWriterLockSlim();
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public static ReaderWriterLockSlim ImplGetWriteSyncObject(IGeneratedStore s) => FindImpl(s)?.WriteSyncObject;
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internal static MethodInfo ImplGetWriteSyncObjectMethod = typeof(Impl).GetMethod(nameof(ImplGetWriteSyncObject));
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internal static MethodInfo ImplSignalChangedMethod = typeof(Impl).GetMethod(nameof(ImplSignalChanged));
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public static void ImplSignalChanged(IGeneratedStore s) => FindImpl(s).SignalChanged();
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public void SignalChanged() => resetEvent.Set();
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internal static MethodInfo ImplInvokeChangedMethod = typeof(Impl).GetMethod(nameof(ImplInvokeChanged));
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public static void ImplInvokeChanged(IGeneratedStore s) => FindImpl(s).InvokeChanged();
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public void InvokeChanged() => generated.Changed();
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internal static MethodInfo ImplTakeReadMethod = typeof(Impl).GetMethod(nameof(ImplTakeRead));
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public static void ImplTakeRead(IGeneratedStore s) => FindImpl(s).TakeRead();
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public void TakeRead()
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{
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if (!WriteSyncObject.IsWriteLockHeld)
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WriteSyncObject.EnterReadLock();
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}
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internal static MethodInfo ImplReleaseReadMethod = typeof(Impl).GetMethod(nameof(ImplReleaseRead));
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public static void ImplReleaseRead(IGeneratedStore s) => FindImpl(s).ReleaseRead();
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public void ReleaseRead()
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{
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if (!WriteSyncObject.IsWriteLockHeld)
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WriteSyncObject.ExitReadLock();
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}
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internal static MethodInfo ImplTakeWriteMethod = typeof(Impl).GetMethod(nameof(ImplTakeWrite));
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public static void ImplTakeWrite(IGeneratedStore s) => FindImpl(s).TakeWrite();
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public void TakeWrite() => WriteSyncObject.EnterWriteLock();
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internal static MethodInfo ImplReleaseWriteMethod = typeof(Impl).GetMethod(nameof(ImplReleaseWrite));
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public static void ImplReleaseWrite(IGeneratedStore s) => FindImpl(s).ReleaseWrite();
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public void ReleaseWrite() => WriteSyncObject.ExitWriteLock();
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internal static MethodInfo ImplChangeTransactionMethod = typeof(Impl).GetMethod(nameof(ImplChangeTransaction));
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public static IDisposable ImplChangeTransaction(IGeneratedStore s, IDisposable nest) => FindImpl(s).ChangeTransaction(nest);
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// TODO: improve trasactionals so they don't always save in every case
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public IDisposable ChangeTransaction(IDisposable nest, bool takeWrite = true)
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=> GetFreeTransaction().InitWith(this, !inChangeTransaction, nest, takeWrite && !WriteSyncObject.IsWriteLockHeld);
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private ChangeTransactionObj GetFreeTransaction()
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=> freeTransactionObjs.Count > 0 ? freeTransactionObjs.Pop()
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: new ChangeTransactionObj();
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// TODO: maybe sometimes clean this?
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private static readonly Stack<ChangeTransactionObj> freeTransactionObjs = new Stack<ChangeTransactionObj>();
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private sealed class ChangeTransactionObj : IDisposable
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{
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private struct Data
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{
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public readonly Impl impl;
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public readonly bool owns;
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public readonly bool ownsWrite;
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public readonly IDisposable nested;
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public Data(Impl impl, bool owning, bool takeWrite, IDisposable nest)
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{
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this.impl = impl; owns = owning; ownsWrite = takeWrite; nested = nest;
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}
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}
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private Data data;
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public ChangeTransactionObj InitWith(Impl impl, bool owning, IDisposable nest, bool takeWrite)
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{
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data = new Data(impl, owning, takeWrite, nest);
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if (data.owns)
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impl.inChangeTransaction = true;
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if (data.ownsWrite)
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impl.TakeWrite();
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return this;
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}
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public void Dispose() => Dispose(true);
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private void Dispose(bool addToStore)
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{
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if (data.owns)
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{
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data.impl.inChangeTransaction = false;
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data.impl.InvokeChanged();
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}
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data.nested?.Dispose();
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if (data.ownsWrite)
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data.impl.ReleaseWrite();
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if (addToStore)
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freeTransactionObjs.Push(this);
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}
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~ChangeTransactionObj() => Dispose(false);
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}
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public static Impl FindImpl(IGeneratedStore store)
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{
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while (store?.Parent != null) store = store.Parent; // walk to the top of the tree
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return store?.Impl;
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}
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internal static MethodInfo ImplReadFromMethod = typeof(Impl).GetMethod(nameof(ImplReadFrom));
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public static void ImplReadFrom(IGeneratedStore s, ConfigProvider provider) => FindImpl(s).ReadFrom(provider);
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public void ReadFrom(ConfigProvider provider)
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{
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var values = provider.Load();
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Logger.config.Debug("Generated impl ReadFrom");
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Logger.config.Debug($"Read {values}");
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generated.Deserialize(values);
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using var transaction = generated.ChangeTransaction();
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generated.OnReload();
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}
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internal static MethodInfo ImplWriteToMethod = typeof(Impl).GetMethod(nameof(ImplWriteTo));
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public static void ImplWriteTo(IGeneratedStore s, ConfigProvider provider) => FindImpl(s).WriteTo(provider);
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public void WriteTo(ConfigProvider provider)
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{
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var values = generated.Serialize();
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Logger.config.Debug("Generated impl WriteTo");
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Logger.config.Debug($"Serialized {values}");
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provider.Store(values);
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}
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}
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private static readonly Dictionary<Type, (GeneratedStoreCreator ctor, Type type)> generatedCreators = new Dictionary<Type, (GeneratedStoreCreator ctor, Type type)>();
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public static T Create<T>() where T : class => (T)Create(typeof(T));
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public static IConfigStore Create(Type type) => Create(type, null);
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private static readonly MethodInfo CreateGParent =
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typeof(GeneratedStoreImpl).GetMethod(nameof(Create), BindingFlags.NonPublic | BindingFlags.Static, null,
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CallingConventions.Any, new[] { typeof(IGeneratedStore) }, Array.Empty<ParameterModifier>());
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internal static T Create<T>(IGeneratedStore parent) where T : class => (T)Create(typeof(T), parent);
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private static IConfigStore Create(Type type, IGeneratedStore parent)
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=> GetCreator(type)(parent);
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internal static GeneratedStoreCreator GetCreator(Type t)
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{
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if (generatedCreators.TryGetValue(t, out var gen))
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return gen.ctor;
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else
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{
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gen = MakeCreator(t);
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generatedCreators.Add(t, gen);
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return gen.ctor;
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}
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}
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internal static Type GetGeneratedType(Type t)
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{
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if (generatedCreators.TryGetValue(t, out var gen))
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return gen.type;
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else
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{
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gen = MakeCreator(t);
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generatedCreators.Add(t, gen);
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return gen.type;
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}
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}
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internal const string GeneratedAssemblyName = "IPA.Config.Generated";
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private static AssemblyBuilder assembly = null;
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private static AssemblyBuilder Assembly
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{
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get
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{
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if (assembly == null)
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{
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var name = new AssemblyName(GeneratedAssemblyName);
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assembly = AppDomain.CurrentDomain.DefineDynamicAssembly(name, AssemblyBuilderAccess.RunAndSave);
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}
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return assembly;
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}
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}
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internal static void DebugSaveAssembly(string file)
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{
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Assembly.Save(file);
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}
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private static ModuleBuilder module = null;
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private static ModuleBuilder Module
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{
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get
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{
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if (module == null)
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module = Assembly.DefineDynamicModule(Assembly.GetName().Name, Assembly.GetName().Name + ".dll");
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return module;
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}
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}
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private class SerializedMemberInfo
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{
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public string Name;
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public MemberInfo Member;
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public Type Type;
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public bool AllowNull;
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public bool IsVirtual;
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public bool IsField;
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public bool IsNullable; // signifies whether this is a Nullable<T>
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public bool HasConverter;
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public bool IsGenericConverter; // used so we can call directly to the generic version if it is
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public Type Converter;
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public Type ConverterBase;
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public Type ConverterTarget;
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public FieldInfo ConverterField;
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// invalid for objects with IsNullabe false
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public Type NullableWrappedType => Nullable.GetUnderlyingType(Type);
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// invalid for objects with IsNullabe false
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public PropertyInfo Nullable_HasValue => Type.GetProperty(nameof(Nullable<int>.HasValue));
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// invalid for objects with IsNullabe false
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public PropertyInfo Nullable_Value => Type.GetProperty(nameof(Nullable<int>.Value));
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// invalid for objects with IsNullabe false
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public ConstructorInfo Nullable_Construct => Type.GetConstructor(new[] { NullableWrappedType });
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}
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internal delegate IConfigStore GeneratedStoreCreator(IGeneratedStore parent);
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private static bool IsMethodInvalid(MethodInfo m, Type ret) => !m.IsVirtual || m.ReturnType != ret;
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private static (GeneratedStoreCreator ctor, Type type) MakeCreator(Type type)
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{ // note that this does not and should not use converters by default for everything
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if (!type.IsClass) throw new ArgumentException("Config type is not a class");
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var baseCtor = type.GetConstructor(Type.EmptyTypes); // get a default constructor
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if (baseCtor == null)
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throw new ArgumentException("Config type does not have a public parameterless constructor");
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|
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#region Parse base object structure
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const BindingFlags overrideMemberFlags = BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance;
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var baseChanged = type.GetMethod("Changed", overrideMemberFlags, null, Type.EmptyTypes, Array.Empty<ParameterModifier>());
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if (baseChanged != null && IsMethodInvalid(baseChanged, typeof(void))) baseChanged = null;
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var baseOnReload = type.GetMethod("OnReload", overrideMemberFlags, null, Type.EmptyTypes, Array.Empty<ParameterModifier>());
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if (baseOnReload != null && IsMethodInvalid(baseOnReload, typeof(void))) baseOnReload = null;
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var baseCopyFrom = type.GetMethod("CopyFrom", overrideMemberFlags, null, new[] { type }, Array.Empty<ParameterModifier>());
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if (baseCopyFrom != null && IsMethodInvalid(baseCopyFrom, typeof(void))) baseCopyFrom = null;
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|
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var baseChangeTransaction = type.GetMethod("ChangeTransaction", overrideMemberFlags, null, Type.EmptyTypes, Array.Empty<ParameterModifier>());
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if (baseChangeTransaction != null && IsMethodInvalid(baseChangeTransaction, typeof(IDisposable))) baseChangeTransaction = null;
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|
|
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var isINotifyPropertyChanged = type.FindInterfaces((i, t) => i == (Type)t, typeof(INotifyPropertyChanged)).Length != 0;
|
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var hasNotifyAttribute = type.GetCustomAttribute<NotifyPropertyChangesAttribute>() != null;
|
|
|
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var structure = new List<SerializedMemberInfo>();
|
|
|
|
bool ProcessAttributesFor(ref SerializedMemberInfo member)
|
|
{
|
|
var attrs = member.Member.GetCustomAttributes(true);
|
|
var ignores = attrs.Select(o => o as IgnoreAttribute).NonNull();
|
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if (ignores.Any()) // we ignore
|
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{
|
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return false;
|
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}
|
|
|
|
var nonNullables = attrs.Select(o => o as NonNullableAttribute).NonNull();
|
|
|
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member.Name = member.Member.Name;
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|
member.IsNullable = member.Type.IsGenericType
|
|
&& member.Type.GetGenericTypeDefinition() == typeof(Nullable<>);
|
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member.AllowNull = !nonNullables.Any() && (!member.Type.IsValueType || member.IsNullable);
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|
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var nameAttr = attrs.Select(o => o as SerializedNameAttribute).NonNull().FirstOrDefault();
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if (nameAttr != null)
|
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member.Name = nameAttr.Name;
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|
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member.HasConverter = false;
|
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var converterAttr = attrs.Select(o => o as UseConverterAttribute).NonNull().FirstOrDefault();
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if (converterAttr != null)
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{
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member.Converter = converterAttr.ConverterType;
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member.IsGenericConverter = converterAttr.IsGenericConverter;
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|
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if (member.Converter.GetConstructor(Type.EmptyTypes) == null)
|
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{
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Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that is not default-constructible");
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goto endConverterAttr; // is there a better control flow structure to do this?
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}
|
|
|
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if (member.Converter.ContainsGenericParameters)
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{
|
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Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that has unfilled type parameters");
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goto endConverterAttr;
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}
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if (member.Converter.IsInterface || member.Converter.IsAbstract)
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{
|
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Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that is not constructible");
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goto endConverterAttr;
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}
|
|
|
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var targetType = converterAttr.ConverterTargetType;
|
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if (!member.IsGenericConverter)
|
|
{
|
|
try
|
|
{
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|
var conv = Activator.CreateInstance(converterAttr.ConverterType) as IValueConverter;
|
|
targetType = conv.Type;
|
|
}
|
|
catch
|
|
{
|
|
Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter who's target type could not be determined");
|
|
goto endConverterAttr;
|
|
}
|
|
}
|
|
if (targetType != member.Type)
|
|
{
|
|
Logger.config.Warn($"{type.FullName}'s member {member.Member.Name} requests a converter that is not of the member's type");
|
|
goto endConverterAttr;
|
|
}
|
|
|
|
member.ConverterTarget = targetType;
|
|
if (member.IsGenericConverter)
|
|
member.ConverterBase = typeof(ValueConverter<>).MakeGenericType(targetType);
|
|
else
|
|
member.ConverterBase = typeof(IValueConverter);
|
|
|
|
member.HasConverter = true;
|
|
}
|
|
endConverterAttr:
|
|
|
|
return true;
|
|
}
|
|
|
|
// only looks at public/protected properties
|
|
foreach (var prop in type.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
|
|
{
|
|
if (prop.GetSetMethod(true)?.IsPrivate ?? true)
|
|
{ // we enter this block if the setter is inacessible or doesn't exist
|
|
continue; // ignore props without setter
|
|
}
|
|
if (prop.GetGetMethod(true)?.IsPrivate ?? true)
|
|
{ // we enter this block if the getter is inacessible or doesn't exist
|
|
continue; // ignore props without getter
|
|
}
|
|
|
|
var smi = new SerializedMemberInfo
|
|
{
|
|
Member = prop,
|
|
IsVirtual = (prop.GetGetMethod(true)?.IsVirtual ?? false) ||
|
|
(prop.GetSetMethod(true)?.IsVirtual ?? false),
|
|
IsField = false,
|
|
Type = prop.PropertyType
|
|
};
|
|
|
|
if (!ProcessAttributesFor(ref smi)) continue;
|
|
|
|
structure.Add(smi);
|
|
}
|
|
|
|
// only look at public/protected fields
|
|
foreach (var field in type.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic))
|
|
{
|
|
if (field.IsPrivate) continue;
|
|
|
|
var smi = new SerializedMemberInfo
|
|
{
|
|
Member = field,
|
|
IsVirtual = false,
|
|
IsField = true,
|
|
Type = field.FieldType
|
|
};
|
|
|
|
if (!ProcessAttributesFor(ref smi)) continue;
|
|
|
|
structure.Add(smi);
|
|
}
|
|
#endregion
|
|
|
|
var typeBuilder = Module.DefineType($"{type.FullName}<Generated>",
|
|
TypeAttributes.Public | TypeAttributes.Sealed | TypeAttributes.Class, type);
|
|
|
|
var typeField = typeBuilder.DefineField("<>_type", typeof(Type), FieldAttributes.Private | FieldAttributes.InitOnly);
|
|
var implField = typeBuilder.DefineField("<>_impl", typeof(Impl), FieldAttributes.Private | FieldAttributes.InitOnly);
|
|
var parentField = typeBuilder.DefineField("<>_parent", typeof(IGeneratedStore), FieldAttributes.Private | FieldAttributes.InitOnly);
|
|
|
|
#region Converter fields
|
|
var uniqueConverterTypes = structure.Where(m => m.HasConverter).Select(m => m.Converter).Distinct().ToArray();
|
|
var converterFields = new Dictionary<Type, FieldInfo>(uniqueConverterTypes.Length);
|
|
|
|
foreach (var convType in uniqueConverterTypes)
|
|
{
|
|
var field = typeBuilder.DefineField($"<converter>_{convType}", convType,
|
|
FieldAttributes.Private | FieldAttributes.InitOnly | FieldAttributes.Static);
|
|
converterFields.Add(convType, field);
|
|
|
|
foreach (var member in structure.Where(m => m.HasConverter && m.Converter == convType))
|
|
member.ConverterField = field;
|
|
}
|
|
#endregion
|
|
|
|
#region Static constructor
|
|
var cctor = typeBuilder.DefineConstructor(MethodAttributes.Static, CallingConventions.Standard, Type.EmptyTypes);
|
|
{
|
|
var il = cctor.GetILGenerator();
|
|
|
|
foreach (var kvp in converterFields)
|
|
{
|
|
var typeCtor = kvp.Key.GetConstructor(Type.EmptyTypes);
|
|
il.Emit(OpCodes.Newobj, typeCtor);
|
|
il.Emit(OpCodes.Stsfld, kvp.Value);
|
|
}
|
|
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
|
|
#region Constructor
|
|
var ctor = typeBuilder.DefineConstructor(MethodAttributes.Public, CallingConventions.Standard, new[] { typeof(IGeneratedStore) });
|
|
{
|
|
var il = ctor.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0); // keep this at bottom of stack
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Call, baseCtor);
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Ldarg_1); // load parent
|
|
il.Emit(OpCodes.Stfld, parentField);
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
EmitTypeof(il, type);
|
|
il.Emit(OpCodes.Stfld, typeField);
|
|
|
|
var noImplLabel = il.DefineLabel();
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Brtrue, noImplLabel);
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Newobj, Impl.Ctor);
|
|
il.Emit(OpCodes.Stfld, implField);
|
|
il.MarkLabel(noImplLabel);
|
|
|
|
var GetLocal = MakeGetLocal(il);
|
|
|
|
foreach (var member in structure)
|
|
{
|
|
EmitStore(il, member, il =>
|
|
{
|
|
EmitLoad(il, member); // load the member
|
|
EmitCorrectMember(il, member, false, true, GetLocal); // correct it
|
|
});
|
|
}
|
|
|
|
il.Emit(OpCodes.Pop);
|
|
|
|
il.Emit(OpCodes.Ret);
|
|
|
|
}
|
|
#endregion
|
|
|
|
const MethodAttributes propertyMethodAttr = MethodAttributes.Public | MethodAttributes.SpecialName | MethodAttributes.HideBySig;
|
|
const MethodAttributes virtualPropertyMethodAttr = propertyMethodAttr | MethodAttributes.Virtual | MethodAttributes.Final;
|
|
const MethodAttributes virtualMemberMethod = MethodAttributes.Public | MethodAttributes.Virtual | MethodAttributes.HideBySig | MethodAttributes.Final;
|
|
|
|
#region INotifyPropertyChanged
|
|
MethodBuilder notifyChanged = null;
|
|
if (isINotifyPropertyChanged || hasNotifyAttribute)
|
|
{
|
|
var INotifyPropertyChanged_t = typeof(INotifyPropertyChanged);
|
|
typeBuilder.AddInterfaceImplementation(INotifyPropertyChanged_t);
|
|
|
|
var INotifyPropertyChanged_PropertyChanged =
|
|
INotifyPropertyChanged_t.GetEvent(nameof(INotifyPropertyChanged.PropertyChanged));
|
|
|
|
var PropertyChangedEventHandler_t = typeof(PropertyChangedEventHandler);
|
|
var PropertyChangedEventHander_Invoke = PropertyChangedEventHandler_t.GetMethod(nameof(PropertyChangedEventHandler.Invoke));
|
|
|
|
var PropertyChangedEventArgs_t = typeof(PropertyChangedEventArgs);
|
|
var PropertyChangedEventArgs_ctor = PropertyChangedEventArgs_t.GetConstructor(new[] { typeof(string) });
|
|
|
|
var Delegate_t = typeof(Delegate);
|
|
var Delegate_Combine = Delegate_t.GetMethod(nameof(Delegate.Combine), BindingFlags.Static | BindingFlags.Public, null,
|
|
new[] { Delegate_t, Delegate_t }, Array.Empty<ParameterModifier>());
|
|
var Delegate_Remove = Delegate_t.GetMethod(nameof(Delegate.Remove), BindingFlags.Static | BindingFlags.Public, null,
|
|
new[] { Delegate_t, Delegate_t }, Array.Empty<ParameterModifier>());
|
|
|
|
var CompareExchange = typeof(Interlocked).GetMethods()
|
|
.Where(m => m.Name == nameof(Interlocked.CompareExchange))
|
|
.Where(m => m.ContainsGenericParameters)
|
|
.Where(m => m.GetParameters().Length == 3).First()
|
|
.MakeGenericMethod(PropertyChangedEventHandler_t);
|
|
|
|
var PropertyChanged_backing = typeBuilder.DefineField("<event>PropertyChanged", PropertyChangedEventHandler_t, FieldAttributes.Private);
|
|
|
|
var add_PropertyChanged = typeBuilder.DefineMethod("<add>PropertyChanged",
|
|
MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Final | MethodAttributes.Virtual,
|
|
null, new[] { PropertyChangedEventHandler_t });
|
|
typeBuilder.DefineMethodOverride(add_PropertyChanged, INotifyPropertyChanged_PropertyChanged.GetAddMethod());
|
|
|
|
{
|
|
var il = add_PropertyChanged.GetILGenerator();
|
|
|
|
var loopLabel = il.DefineLabel();
|
|
var delTemp = il.DeclareLocal(PropertyChangedEventHandler_t);
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldfld, PropertyChanged_backing);
|
|
|
|
il.MarkLabel(loopLabel);
|
|
il.Emit(OpCodes.Stloc, delTemp);
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldflda, PropertyChanged_backing);
|
|
|
|
il.Emit(OpCodes.Ldloc, delTemp);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Call, Delegate_Combine);
|
|
il.Emit(OpCodes.Castclass, PropertyChangedEventHandler_t);
|
|
|
|
il.Emit(OpCodes.Ldloc, delTemp);
|
|
il.Emit(OpCodes.Call, CompareExchange);
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Ldloc, delTemp);
|
|
il.Emit(OpCodes.Bne_Un_S, loopLabel);
|
|
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
|
|
var remove_PropertyChanged = typeBuilder.DefineMethod("<remove>PropertyChanged",
|
|
MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Final | MethodAttributes.Virtual,
|
|
null, new[] { PropertyChangedEventHandler_t });
|
|
typeBuilder.DefineMethodOverride(remove_PropertyChanged, INotifyPropertyChanged_PropertyChanged.GetRemoveMethod());
|
|
|
|
{
|
|
var il = remove_PropertyChanged.GetILGenerator();
|
|
|
|
var loopLabel = il.DefineLabel();
|
|
var delTemp = il.DeclareLocal(PropertyChangedEventHandler_t);
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldfld, PropertyChanged_backing);
|
|
|
|
il.MarkLabel(loopLabel);
|
|
il.Emit(OpCodes.Stloc, delTemp);
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldflda, PropertyChanged_backing);
|
|
|
|
il.Emit(OpCodes.Ldloc, delTemp);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Call, Delegate_Remove);
|
|
il.Emit(OpCodes.Castclass, PropertyChangedEventHandler_t);
|
|
|
|
il.Emit(OpCodes.Ldloc, delTemp);
|
|
il.Emit(OpCodes.Call, CompareExchange);
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Ldloc, delTemp);
|
|
il.Emit(OpCodes.Bne_Un_S, loopLabel);
|
|
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
|
|
var PropertyChanged_event = typeBuilder.DefineEvent(nameof(INotifyPropertyChanged.PropertyChanged), EventAttributes.None, PropertyChangedEventHandler_t);
|
|
PropertyChanged_event.SetAddOnMethod(add_PropertyChanged);
|
|
PropertyChanged_event.SetRemoveOnMethod(remove_PropertyChanged);
|
|
|
|
notifyChanged = typeBuilder.DefineMethod("<>NotifyChanged",
|
|
MethodAttributes.Public | MethodAttributes.HideBySig | MethodAttributes.Final, null, new[] { typeof(string) });
|
|
|
|
{
|
|
var il = notifyChanged.GetILGenerator();
|
|
|
|
var invokeNonNull = il.DefineLabel();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldfld, PropertyChanged_backing);
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Brtrue, invokeNonNull);
|
|
il.Emit(OpCodes.Pop);
|
|
il.Emit(OpCodes.Ret);
|
|
|
|
il.MarkLabel(invokeNonNull);
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Newobj, PropertyChangedEventArgs_ctor);
|
|
il.Emit(OpCodes.Call, PropertyChangedEventHander_Invoke);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
}
|
|
#endregion
|
|
|
|
#region IGeneratedStore
|
|
typeBuilder.AddInterfaceImplementation(typeof(IGeneratedStore));
|
|
|
|
var IGeneratedStore_t = typeof(IGeneratedStore);
|
|
var IGeneratedStore_GetImpl = IGeneratedStore_t.GetProperty(nameof(IGeneratedStore.Impl)).GetGetMethod();
|
|
var IGeneratedStore_GetType = IGeneratedStore_t.GetProperty(nameof(IGeneratedStore.Type)).GetGetMethod();
|
|
var IGeneratedStore_GetParent = IGeneratedStore_t.GetProperty(nameof(IGeneratedStore.Parent)).GetGetMethod();
|
|
var IGeneratedStore_Serialize = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.Serialize));
|
|
var IGeneratedStore_Deserialize = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.Deserialize));
|
|
var IGeneratedStore_OnReload = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.OnReload));
|
|
var IGeneratedStore_Changed = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.Changed));
|
|
var IGeneratedStore_ChangeTransaction = IGeneratedStore_t.GetMethod(nameof(IGeneratedStore.ChangeTransaction));
|
|
|
|
#region IGeneratedStore.OnReload
|
|
var onReload = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore.OnReload)}", virtualMemberMethod, null, Type.EmptyTypes);
|
|
typeBuilder.DefineMethodOverride(onReload, IGeneratedStore_OnReload);
|
|
if (baseOnReload != null) typeBuilder.DefineMethodOverride(onReload, baseOnReload);
|
|
|
|
{
|
|
var il = onReload.GetILGenerator();
|
|
|
|
if (baseOnReload != null)
|
|
{
|
|
il.Emit(OpCodes.Ldarg_0); // load this
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, baseOnReload); // load impl field
|
|
}
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IGeneratedStore.Impl
|
|
var implProp = typeBuilder.DefineProperty(nameof(IGeneratedStore.Impl), PropertyAttributes.None, typeof(Impl), null);
|
|
var implPropGet = typeBuilder.DefineMethod($"<g>{nameof(IGeneratedStore.Impl)}", virtualPropertyMethodAttr, implProp.PropertyType, Type.EmptyTypes);
|
|
implProp.SetGetMethod(implPropGet);
|
|
typeBuilder.DefineMethodOverride(implPropGet, IGeneratedStore_GetImpl);
|
|
|
|
{
|
|
var il = implPropGet.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0); // load this
|
|
il.Emit(OpCodes.Ldfld, implField); // load impl field
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IGeneratedStore.Type
|
|
var typeProp = typeBuilder.DefineProperty(nameof(IGeneratedStore.Type), PropertyAttributes.None, typeof(Type), null);
|
|
var typePropGet = typeBuilder.DefineMethod($"<g>{nameof(IGeneratedStore.Type)}", virtualPropertyMethodAttr, typeProp.PropertyType, Type.EmptyTypes);
|
|
typeProp.SetGetMethod(typePropGet);
|
|
typeBuilder.DefineMethodOverride(typePropGet, IGeneratedStore_GetType);
|
|
|
|
{
|
|
var il = typePropGet.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0); // load this
|
|
il.Emit(OpCodes.Ldfld, typeField); // load impl field
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IGeneratedStore.Parent
|
|
var parentProp = typeBuilder.DefineProperty(nameof(IGeneratedStore.Parent), PropertyAttributes.None, typeof(IGeneratedStore), null);
|
|
var parentPropGet = typeBuilder.DefineMethod($"<g>{nameof(IGeneratedStore.Parent)}", virtualPropertyMethodAttr, parentProp.PropertyType, Type.EmptyTypes);
|
|
parentProp.SetGetMethod(parentPropGet);
|
|
typeBuilder.DefineMethodOverride(parentPropGet, IGeneratedStore_GetParent);
|
|
|
|
{
|
|
var il = parentPropGet.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0); // load this
|
|
il.Emit(OpCodes.Ldfld, parentField); // load impl field
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IGeneratedStore.Serialize
|
|
var serializeGen = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore.Serialize)}", virtualPropertyMethodAttr, IGeneratedStore_Serialize.ReturnType, Type.EmptyTypes);
|
|
typeBuilder.DefineMethodOverride(serializeGen, IGeneratedStore_Serialize);
|
|
|
|
{ // this is non-locking because the only code that will call this will already own the correct lock
|
|
var il = serializeGen.GetILGenerator();
|
|
|
|
var Map_Add = typeof(Map).GetMethod(nameof(Map.Add));
|
|
var mapLocal = il.DeclareLocal(typeof(Map));
|
|
|
|
var GetLocal = MakeGetLocal(il);
|
|
var valLocal = GetLocal(typeof(Value));
|
|
|
|
il.Emit(OpCodes.Call, typeof(Value).GetMethod(nameof(Value.Map)));
|
|
il.Emit(OpCodes.Stloc, mapLocal);
|
|
|
|
foreach (var member in structure)
|
|
{
|
|
EmitSerializeMember(il, member, GetLocal);
|
|
il.Emit(OpCodes.Stloc, valLocal);
|
|
il.Emit(OpCodes.Ldloc, mapLocal);
|
|
il.Emit(OpCodes.Ldstr, member.Name);
|
|
il.Emit(OpCodes.Ldloc, valLocal);
|
|
il.Emit(OpCodes.Call, Map_Add);
|
|
}
|
|
|
|
il.Emit(OpCodes.Ldloc, mapLocal);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IGeneratedStore.Deserialize
|
|
var deserializeGen = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore.Deserialize)}", virtualPropertyMethodAttr, null,
|
|
new[] { IGeneratedStore_Deserialize.GetParameters()[0].ParameterType });
|
|
typeBuilder.DefineMethodOverride(deserializeGen, IGeneratedStore_Deserialize);
|
|
|
|
{ // this is non-locking because the only code that will call this will already own the correct lock
|
|
var il = deserializeGen.GetILGenerator();
|
|
|
|
var Map_t = typeof(Map);
|
|
var Map_TryGetValue = Map_t.GetMethod(nameof(Map.TryGetValue));
|
|
var Object_GetType = typeof(object).GetMethod(nameof(Object.GetType));
|
|
|
|
var valueLocal = il.DeclareLocal(typeof(Value));
|
|
var mapLocal = il.DeclareLocal(typeof(Map));
|
|
|
|
var nonNull = il.DefineLabel();
|
|
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Brtrue, nonNull);
|
|
|
|
EmitLogError(il, "Attempting to deserialize null", tailcall: true);
|
|
il.Emit(OpCodes.Ret);
|
|
|
|
il.MarkLabel(nonNull);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Isinst, Map_t);
|
|
il.Emit(OpCodes.Dup); // duplicate cloned value
|
|
il.Emit(OpCodes.Stloc, mapLocal);
|
|
var notMapError = il.DefineLabel();
|
|
il.Emit(OpCodes.Brtrue, notMapError);
|
|
// handle error
|
|
EmitLogError(il, $"Invalid root for deserializing {type.FullName}", tailcall: true,
|
|
expected: il => EmitTypeof(il, Map_t), found: il =>
|
|
{
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Callvirt, Object_GetType);
|
|
});
|
|
il.Emit(OpCodes.Ret);
|
|
|
|
var nextLabel = notMapError;
|
|
|
|
var GetLocal = MakeGetLocal(il);
|
|
|
|
// head of stack is Map instance
|
|
foreach (var member in structure)
|
|
{
|
|
il.MarkLabel(nextLabel);
|
|
nextLabel = il.DefineLabel();
|
|
var endErrorLabel = il.DefineLabel();
|
|
|
|
il.Emit(OpCodes.Ldloc, mapLocal);
|
|
il.Emit(OpCodes.Ldstr, member.Name);
|
|
il.Emit(OpCodes.Ldloca_S, valueLocal);
|
|
il.Emit(OpCodes.Call, Map_TryGetValue);
|
|
il.Emit(OpCodes.Brtrue_S, endErrorLabel);
|
|
|
|
EmitLogError(il, $"Missing key {member.Name}", tailcall: false);
|
|
il.Emit(OpCodes.Br, nextLabel);
|
|
|
|
il.MarkLabel(endErrorLabel);
|
|
|
|
il.Emit(OpCodes.Ldloc_S, valueLocal);
|
|
EmitDeserializeMember(il, member, nextLabel, il => il.Emit(OpCodes.Ldloc_S, valueLocal), GetLocal);
|
|
}
|
|
|
|
il.MarkLabel(nextLabel);
|
|
|
|
if (notifyChanged != null)
|
|
{
|
|
foreach (var member in structure)
|
|
{
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldstr, member.Name);
|
|
il.Emit(OpCodes.Call, notifyChanged);
|
|
}
|
|
}
|
|
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#endregion
|
|
|
|
#region IConfigStore
|
|
typeBuilder.AddInterfaceImplementation(typeof(IConfigStore));
|
|
|
|
var IConfigStore_t = typeof(IConfigStore);
|
|
var IConfigStore_GetSyncObject = IConfigStore_t.GetProperty(nameof(IConfigStore.SyncObject)).GetGetMethod();
|
|
var IConfigStore_GetWriteSyncObject = IConfigStore_t.GetProperty(nameof(IConfigStore.WriteSyncObject)).GetGetMethod();
|
|
var IConfigStore_WriteTo = IConfigStore_t.GetMethod(nameof(IConfigStore.WriteTo));
|
|
var IConfigStore_ReadFrom = IConfigStore_t.GetMethod(nameof(IConfigStore.ReadFrom));
|
|
|
|
#region IConfigStore.SyncObject
|
|
var syncObjProp = typeBuilder.DefineProperty(nameof(IConfigStore.SyncObject), PropertyAttributes.None, typeof(WaitHandle), null);
|
|
var syncObjPropGet = typeBuilder.DefineMethod($"<g>{nameof(IConfigStore.SyncObject)}", virtualPropertyMethodAttr, syncObjProp.PropertyType, Type.EmptyTypes);
|
|
syncObjProp.SetGetMethod(syncObjPropGet);
|
|
typeBuilder.DefineMethodOverride(syncObjPropGet, IConfigStore_GetSyncObject);
|
|
|
|
{
|
|
var il = syncObjPropGet.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, Impl.ImplGetSyncObjectMethod);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IConfigStore.WriteSyncObject
|
|
var writeSyncObjProp = typeBuilder.DefineProperty(nameof(IConfigStore.WriteSyncObject), PropertyAttributes.None, typeof(WaitHandle), null);
|
|
var writeSyncObjPropGet = typeBuilder.DefineMethod($"<g>{nameof(IConfigStore.WriteSyncObject)}", virtualPropertyMethodAttr, writeSyncObjProp.PropertyType, Type.EmptyTypes);
|
|
writeSyncObjProp.SetGetMethod(writeSyncObjPropGet);
|
|
typeBuilder.DefineMethodOverride(writeSyncObjPropGet, IConfigStore_GetWriteSyncObject);
|
|
|
|
{
|
|
var il = writeSyncObjPropGet.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, Impl.ImplGetWriteSyncObjectMethod);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IConfigStore.WriteTo
|
|
var writeTo = typeBuilder.DefineMethod($"<>{nameof(IConfigStore.WriteTo)}", virtualMemberMethod, null, new[] { typeof(ConfigProvider) });
|
|
typeBuilder.DefineMethodOverride(writeTo, IConfigStore_WriteTo);
|
|
|
|
{
|
|
var il = writeTo.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, Impl.ImplWriteToMethod);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#region IConfigStore.ReadFrom
|
|
var readFrom = typeBuilder.DefineMethod($"<>{nameof(IConfigStore.ReadFrom)}", virtualMemberMethod, null, new[] { typeof(ConfigProvider) });
|
|
typeBuilder.DefineMethodOverride(readFrom, IConfigStore_ReadFrom);
|
|
|
|
{
|
|
var il = readFrom.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, Impl.ImplReadFromMethod);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#endregion
|
|
|
|
#region Changed
|
|
var coreChanged = typeBuilder.DefineMethod(
|
|
"<>Changed",
|
|
virtualMemberMethod,
|
|
null, Type.EmptyTypes);
|
|
typeBuilder.DefineMethodOverride(coreChanged, IGeneratedStore_Changed);
|
|
if (baseChanged != null)
|
|
typeBuilder.DefineMethodOverride(coreChanged, baseChanged);
|
|
|
|
{
|
|
var il = coreChanged.GetILGenerator();
|
|
|
|
if (baseChanged != null)
|
|
{
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, baseChanged); // call base
|
|
}
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, Impl.ImplSignalChangedMethod);
|
|
il.Emit(OpCodes.Ret); // simply call our impl's SignalChanged method and return
|
|
}
|
|
#endregion
|
|
|
|
#region ChangeTransaction
|
|
var coreChangeTransaction = typeBuilder.DefineMethod(
|
|
"<>ChangeTransaction",
|
|
virtualMemberMethod,
|
|
typeof(IDisposable), Type.EmptyTypes);
|
|
typeBuilder.DefineMethodOverride(coreChangeTransaction, IGeneratedStore_ChangeTransaction);
|
|
if (baseChangeTransaction != null)
|
|
typeBuilder.DefineMethodOverride(coreChangeTransaction, baseChangeTransaction);
|
|
|
|
{
|
|
var il = coreChangeTransaction.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
if (baseChangeTransaction != null)
|
|
{
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, baseChangeTransaction);
|
|
}
|
|
else
|
|
il.Emit(OpCodes.Ldnull);
|
|
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, Impl.ImplChangeTransactionMethod);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
|
|
#region IGeneratedStore<T>
|
|
var IGeneratedStore_T_t = typeof(IGeneratedStore<>).MakeGenericType(type);
|
|
typeBuilder.AddInterfaceImplementation(IGeneratedStore_T_t);
|
|
|
|
var IGeneratedStore_T_CopyFrom = IGeneratedStore_T_t.GetMethod(nameof(IGeneratedStore<Config>.CopyFrom));
|
|
|
|
#region IGeneratedStore<T>.CopyFrom
|
|
var copyFrom = typeBuilder.DefineMethod($"<>{nameof(IGeneratedStore<Config>.CopyFrom)}", virtualMemberMethod, null, new[] { type, typeof(bool) });
|
|
typeBuilder.DefineMethodOverride(copyFrom, IGeneratedStore_T_CopyFrom);
|
|
|
|
{
|
|
var il = copyFrom.GetILGenerator();
|
|
|
|
var transactionLocal = il.DeclareLocal(IDisposable_t);
|
|
|
|
var startLock = il.DefineLabel();
|
|
il.Emit(OpCodes.Ldarg_2);
|
|
il.Emit(OpCodes.Brfalse, startLock);
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, coreChangeTransaction); // take the write lock
|
|
il.Emit(OpCodes.Stloc, transactionLocal);
|
|
il.MarkLabel(startLock);
|
|
|
|
var GetLocal = MakeGetLocal(il);
|
|
|
|
foreach (var member in structure)
|
|
{
|
|
il.BeginExceptionBlock();
|
|
|
|
EmitStore(il, member, il =>
|
|
{
|
|
EmitLoad(il, member, il => il.Emit(OpCodes.Ldarg_1));
|
|
EmitCorrectMember(il, member, false, false, GetLocal);
|
|
});
|
|
|
|
il.BeginCatchBlock(typeof(Exception));
|
|
|
|
EmitWarnException(il, $"Error while copying from member {member.Name}");
|
|
|
|
il.EndExceptionBlock();
|
|
}
|
|
|
|
if (notifyChanged != null)
|
|
{
|
|
foreach (var member in structure)
|
|
{
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldstr, member.Name);
|
|
il.Emit(OpCodes.Call, notifyChanged);
|
|
}
|
|
}
|
|
|
|
var endLock = il.DefineLabel();
|
|
il.Emit(OpCodes.Ldarg_2);
|
|
il.Emit(OpCodes.Brfalse, endLock);
|
|
il.Emit(OpCodes.Ldloc, transactionLocal);
|
|
il.Emit(OpCodes.Callvirt, IDisposable_Dispose);
|
|
il.MarkLabel(endLock);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
#endregion
|
|
#endregion
|
|
|
|
#region base.CopyFrom
|
|
if (baseCopyFrom != null)
|
|
{
|
|
var pubCopyFrom = typeBuilder.DefineMethod(
|
|
baseCopyFrom.Name,
|
|
virtualMemberMethod,
|
|
null, new[] { type });
|
|
typeBuilder.DefineMethodOverride(pubCopyFrom, baseCopyFrom);
|
|
|
|
{
|
|
var il = pubCopyFrom.GetILGenerator();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, coreChangeTransaction);
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Ldc_I4_0);
|
|
il.Emit(OpCodes.Call, copyFrom); // call internal
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
il.Emit(OpCodes.Call, baseCopyFrom); // call base
|
|
|
|
il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Callvirt, IDisposable_Dispose); // dispose transaction (which calls changed)
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
}
|
|
#endregion
|
|
|
|
#region Members
|
|
foreach (var member in structure.Where(m => m.IsVirtual))
|
|
{ // IsVirtual implies !IsField
|
|
var prop = member.Member as PropertyInfo;
|
|
var get = prop.GetGetMethod(true);
|
|
var set = prop.GetSetMethod(true);
|
|
|
|
var propBuilder = typeBuilder.DefineProperty($"{member.Name}#", PropertyAttributes.None, member.Type, null);
|
|
var propGet = typeBuilder.DefineMethod($"<g>{propBuilder.Name}", virtualPropertyMethodAttr, member.Type, Type.EmptyTypes);
|
|
propBuilder.SetGetMethod(propGet);
|
|
typeBuilder.DefineMethodOverride(propGet, get);
|
|
|
|
{
|
|
var il = propGet.GetILGenerator();
|
|
|
|
var local = il.DeclareLocal(member.Type);
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, Impl.ImplTakeReadMethod); // take the read lock
|
|
|
|
il.BeginExceptionBlock();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, get); // call base getter
|
|
il.Emit(OpCodes.Stloc, local);
|
|
|
|
il.BeginFinallyBlock();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, Impl.ImplReleaseReadMethod); // release the read lock
|
|
|
|
il.EndExceptionBlock();
|
|
|
|
il.Emit(OpCodes.Ldloc, local);
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
|
|
var propSet = typeBuilder.DefineMethod($"<s>{propBuilder.Name}", virtualPropertyMethodAttr, null, new[] { member.Type });
|
|
propBuilder.SetSetMethod(propSet);
|
|
typeBuilder.DefineMethodOverride(propSet, set);
|
|
|
|
{ // TODO: decide if i want to correct the value before or after i take the write lock
|
|
var il = propSet.GetILGenerator();
|
|
|
|
var transactionLocal = il.DeclareLocal(IDisposable_t);
|
|
var GetLocal = MakeGetLocal(il);
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, coreChangeTransaction); // take the write lock
|
|
il.Emit(OpCodes.Stloc, transactionLocal);
|
|
|
|
il.BeginExceptionBlock();
|
|
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldarg_1);
|
|
EmitCorrectMember(il, member, false, false, GetLocal);
|
|
il.Emit(OpCodes.Call, set);
|
|
|
|
il.BeginFinallyBlock();
|
|
|
|
il.Emit(OpCodes.Ldloc, transactionLocal);
|
|
il.Emit(OpCodes.Callvirt, IDisposable_Dispose);
|
|
|
|
il.EndExceptionBlock();
|
|
|
|
if (notifyChanged != null)
|
|
{
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Ldstr, member.Name);
|
|
il.Emit(OpCodes.Call, notifyChanged);
|
|
}
|
|
il.Emit(OpCodes.Ret);
|
|
}
|
|
|
|
}
|
|
#endregion
|
|
|
|
var genType = typeBuilder.CreateType();
|
|
|
|
var parentParam = Expression.Parameter(typeof(IGeneratedStore), "parent");
|
|
var creatorDel = Expression.Lambda<GeneratedStoreCreator>(
|
|
Expression.New(ctor, parentParam), parentParam
|
|
).Compile();
|
|
|
|
return (creatorDel, genType);
|
|
}
|
|
|
|
#region Logs
|
|
private static readonly MethodInfo LogErrorMethod = typeof(GeneratedStoreImpl).GetMethod(nameof(LogError), BindingFlags.NonPublic | BindingFlags.Static);
|
|
internal static void LogError(Type expected, Type found, string message)
|
|
{
|
|
Logger.config.Notice($"{message}{(expected == null ? "" : $" (expected {expected}, found {found?.ToString() ?? "null"})")}");
|
|
}
|
|
private static readonly MethodInfo LogWarningMethod = typeof(GeneratedStoreImpl).GetMethod(nameof(LogWarning), BindingFlags.NonPublic | BindingFlags.Static);
|
|
internal static void LogWarning(string message)
|
|
{
|
|
Logger.config.Warn(message);
|
|
}
|
|
private static readonly MethodInfo LogWarningExceptionMethod = typeof(GeneratedStoreImpl).GetMethod(nameof(LogWarningException), BindingFlags.NonPublic | BindingFlags.Static);
|
|
internal static void LogWarningException(Exception exception)
|
|
{
|
|
Logger.config.Warn(exception);
|
|
}
|
|
#endregion
|
|
|
|
#region Correction
|
|
private static bool NeedsCorrection(SerializedMemberInfo member)
|
|
{
|
|
var expectType = GetExpectedValueTypeForType(member.IsNullable ? member.NullableWrappedType : member.Type);
|
|
|
|
if (expectType == typeof(Map)) // TODO: make this slightly saner
|
|
return true;
|
|
return false;
|
|
}
|
|
|
|
// expects start value on stack, exits with final value on stack
|
|
private static void EmitCorrectMember(ILGenerator il, SerializedMemberInfo member, bool shouldLock, bool alwaysNew, GetLocal GetLocal)
|
|
{
|
|
if (!NeedsCorrection(member)) return;
|
|
|
|
var endLabel = il.DefineLabel();
|
|
|
|
if (member.IsNullable)
|
|
{
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Call, member.Nullable_HasValue.GetGetMethod());
|
|
il.Emit(OpCodes.Brfalse, endLabel);
|
|
il.Emit(OpCodes.Call, member.Nullable_Value.GetGetMethod());
|
|
}
|
|
|
|
// TODO: impl the rest of this
|
|
|
|
// currently the only thing for this is where expect == Map, so do generate shit
|
|
var copyFrom = typeof(IGeneratedStore<>).MakeGenericType(member.Type).GetMethod(nameof(IGeneratedStore<Config>.CopyFrom));
|
|
var noCreate = il.DefineLabel();
|
|
var valLocal = GetLocal(member.Type);
|
|
|
|
if (!alwaysNew)
|
|
{
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Isinst, typeof(IGeneratedStore));
|
|
il.Emit(OpCodes.Brtrue_S, endLabel); // our input is already something we like
|
|
}
|
|
il.Emit(OpCodes.Stloc, valLocal);
|
|
if (!alwaysNew)
|
|
{
|
|
EmitLoad(il, member, il => il.Emit(OpCodes.Ldarg_0));
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Isinst, typeof(IGeneratedStore));
|
|
il.Emit(OpCodes.Brtrue_S, noCreate);
|
|
il.Emit(OpCodes.Pop);
|
|
}
|
|
EmitCreateChildGenerated(il, member.Type);
|
|
il.MarkLabel(noCreate);
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Ldloc, valLocal);
|
|
il.Emit(shouldLock ? OpCodes.Ldc_I4_1 : OpCodes.Ldc_I4_0);
|
|
il.Emit(OpCodes.Callvirt, copyFrom);
|
|
|
|
// TODO: impl the rest of this
|
|
|
|
if (member.IsNullable)
|
|
il.Emit(OpCodes.Newobj, member.Nullable_Construct);
|
|
|
|
il.MarkLabel(endLabel);
|
|
}
|
|
#endregion
|
|
|
|
#region Utility
|
|
|
|
private delegate LocalBuilder GetLocal(Type type, int idx = 0);
|
|
|
|
private static GetLocal MakeGetLocal(ILGenerator il)
|
|
{ // TODO: improve this shit a bit so that i can release a hold of a variable and do more auto managing
|
|
var locals = new List<LocalBuilder>();
|
|
|
|
LocalBuilder GetLocal(Type ty, int i = 0)
|
|
{
|
|
var builder = locals.Where(b => b.LocalType == ty).Skip(i).FirstOrDefault();
|
|
if (builder == null)
|
|
{
|
|
builder = il.DeclareLocal(ty);
|
|
locals.Add(builder);
|
|
}
|
|
return builder;
|
|
}
|
|
|
|
return GetLocal;
|
|
}
|
|
|
|
private static void EmitLoad(ILGenerator il, SerializedMemberInfo member, Action<ILGenerator> thisarg = null)
|
|
{
|
|
if (thisarg == null)
|
|
thisarg = il => il.Emit(OpCodes.Ldarg_0);
|
|
|
|
thisarg(il); // load this
|
|
|
|
if (member.IsField)
|
|
il.Emit(OpCodes.Ldfld, member.Member as FieldInfo);
|
|
else
|
|
{ // member is a property
|
|
var prop = member.Member as PropertyInfo;
|
|
var getter = prop.GetGetMethod();
|
|
if (getter == null) throw new InvalidOperationException($"Property {member.Name} does not have a getter and is not ignored");
|
|
|
|
il.Emit(OpCodes.Call, getter);
|
|
}
|
|
}
|
|
|
|
private static void EmitStore(ILGenerator il, SerializedMemberInfo member, Action<ILGenerator> value)
|
|
{
|
|
il.Emit(OpCodes.Ldarg_0); // load this
|
|
value(il);
|
|
|
|
if (member.IsField)
|
|
il.Emit(OpCodes.Stfld, member.Member as FieldInfo);
|
|
else
|
|
{ // member is a property
|
|
var prop = member.Member as PropertyInfo;
|
|
var setter = prop.GetSetMethod();
|
|
if (setter == null) throw new InvalidOperationException($"Property {member.Name} does not have a setter and is not ignored");
|
|
|
|
il.Emit(OpCodes.Call, setter);
|
|
}
|
|
}
|
|
|
|
private static void EmitWarnException(ILGenerator il, string v)
|
|
{
|
|
il.Emit(OpCodes.Ldstr, v);
|
|
il.Emit(OpCodes.Call, LogWarningMethod);
|
|
il.Emit(OpCodes.Call, LogWarningExceptionMethod);
|
|
}
|
|
|
|
private static void EmitLogError(ILGenerator il, string message, bool tailcall = false, Action<ILGenerator> expected = null, Action<ILGenerator> found = null)
|
|
{
|
|
if (expected == null) expected = il => il.Emit(OpCodes.Ldnull);
|
|
if (found == null) found = il => il.Emit(OpCodes.Ldnull);
|
|
|
|
expected(il);
|
|
found(il);
|
|
il.Emit(OpCodes.Ldstr, message);
|
|
if (tailcall) il.Emit(OpCodes.Tailcall);
|
|
il.Emit(OpCodes.Call, LogErrorMethod);
|
|
}
|
|
|
|
private static readonly MethodInfo Type_GetTypeFromHandle = typeof(Type).GetMethod(nameof(Type.GetTypeFromHandle));
|
|
private static void EmitTypeof(ILGenerator il, Type type)
|
|
{
|
|
il.Emit(OpCodes.Ldtoken, type);
|
|
il.Emit(OpCodes.Call, Type_GetTypeFromHandle);
|
|
}
|
|
|
|
private static readonly Type IDisposable_t = typeof(IDisposable);
|
|
private static readonly MethodInfo IDisposable_Dispose = IDisposable_t.GetMethod(nameof(IDisposable.Dispose));
|
|
|
|
private static readonly Type Decimal_t = typeof(decimal);
|
|
private static readonly ConstructorInfo Decimal_FromFloat = Decimal_t.GetConstructor(new[] { typeof(float) });
|
|
private static readonly ConstructorInfo Decimal_FromDouble = Decimal_t.GetConstructor(new[] { typeof(double) });
|
|
private static readonly ConstructorInfo Decimal_FromInt = Decimal_t.GetConstructor(new[] { typeof(int) });
|
|
private static readonly ConstructorInfo Decimal_FromUInt = Decimal_t.GetConstructor(new[] { typeof(uint) });
|
|
private static readonly ConstructorInfo Decimal_FromLong = Decimal_t.GetConstructor(new[] { typeof(long) });
|
|
private static readonly ConstructorInfo Decimal_FromULong = Decimal_t.GetConstructor(new[] { typeof(ulong) });
|
|
private static void EmitNumberConvertTo(ILGenerator il, Type to, Type from)
|
|
{ // WARNING: THIS USES THE NO-OVERFLOW OPCODES
|
|
if (to == from) return;
|
|
if (to == Decimal_t)
|
|
{
|
|
if (from == typeof(float)) il.Emit(OpCodes.Newobj, Decimal_FromFloat);
|
|
else if (from == typeof(double)) il.Emit(OpCodes.Newobj, Decimal_FromDouble);
|
|
else if (from == typeof(long)) il.Emit(OpCodes.Newobj, Decimal_FromLong);
|
|
else if (from == typeof(ulong)) il.Emit(OpCodes.Newobj, Decimal_FromULong);
|
|
else if (from == typeof(int)) il.Emit(OpCodes.Newobj, Decimal_FromInt);
|
|
else if (from == typeof(uint)) il.Emit(OpCodes.Newobj, Decimal_FromUInt);
|
|
else if (from == typeof(IntPtr))
|
|
{
|
|
EmitNumberConvertTo(il, typeof(long), from);
|
|
EmitNumberConvertTo(il, to, typeof(long));
|
|
}
|
|
else if (from == typeof(UIntPtr))
|
|
{
|
|
EmitNumberConvertTo(il, typeof(ulong), from);
|
|
EmitNumberConvertTo(il, to, typeof(ulong));
|
|
}
|
|
else
|
|
{ // if the source is anything else, we first convert to int because that can contain all other values
|
|
EmitNumberConvertTo(il, typeof(int), from);
|
|
EmitNumberConvertTo(il, to, typeof(int));
|
|
};
|
|
}
|
|
else if (from == Decimal_t)
|
|
{
|
|
if (to == typeof(IntPtr))
|
|
{
|
|
EmitNumberConvertTo(il, typeof(long), from);
|
|
EmitNumberConvertTo(il, to, typeof(long));
|
|
}
|
|
else if (to == typeof(UIntPtr))
|
|
{
|
|
EmitNumberConvertTo(il, typeof(ulong), from);
|
|
EmitNumberConvertTo(il, to, typeof(ulong));
|
|
}
|
|
else
|
|
{
|
|
var method = Decimal_t.GetMethod($"To{to.Name}"); // conveniently, this is the pattern of the to* names
|
|
il.Emit(OpCodes.Call, method);
|
|
}
|
|
}
|
|
else if (to == typeof(IntPtr)) il.Emit(OpCodes.Conv_I);
|
|
else if (to == typeof(UIntPtr)) il.Emit(OpCodes.Conv_U);
|
|
else if (to == typeof(sbyte)) il.Emit(OpCodes.Conv_I1);
|
|
else if (to == typeof(byte)) il.Emit(OpCodes.Conv_U1);
|
|
else if (to == typeof(short)) il.Emit(OpCodes.Conv_I2);
|
|
else if (to == typeof(ushort)) il.Emit(OpCodes.Conv_U2);
|
|
else if (to == typeof(int)) il.Emit(OpCodes.Conv_I4);
|
|
else if (to == typeof(uint)) il.Emit(OpCodes.Conv_U4);
|
|
else if (to == typeof(long)) il.Emit(OpCodes.Conv_I8);
|
|
else if (to == typeof(ulong)) il.Emit(OpCodes.Conv_U8);
|
|
else if (to == typeof(float))
|
|
{
|
|
if (from == typeof(byte)
|
|
|| from == typeof(ushort)
|
|
|| from == typeof(uint)
|
|
|| from == typeof(ulong)
|
|
|| from == typeof(UIntPtr)) il.Emit(OpCodes.Conv_R_Un);
|
|
il.Emit(OpCodes.Conv_R4);
|
|
}
|
|
else if (to == typeof(double))
|
|
{
|
|
if (from == typeof(byte)
|
|
|| from == typeof(ushort)
|
|
|| from == typeof(uint)
|
|
|| from == typeof(ulong)
|
|
|| from == typeof(UIntPtr)) il.Emit(OpCodes.Conv_R_Un);
|
|
il.Emit(OpCodes.Conv_R8);
|
|
}
|
|
}
|
|
|
|
private static void EmitCreateChildGenerated(ILGenerator il, Type childType)
|
|
{
|
|
var method = CreateGParent.MakeGenericMethod(childType);
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, method);
|
|
}
|
|
#endregion
|
|
|
|
#region Serialize
|
|
|
|
// emit takes no args, leaves Value at top of stack
|
|
private static void EmitSerializeMember(ILGenerator il, SerializedMemberInfo member, GetLocal GetLocal)
|
|
{
|
|
EmitLoad(il, member);
|
|
|
|
var endSerialize = il.DefineLabel();
|
|
|
|
if (member.AllowNull)
|
|
{
|
|
var passedNull = il.DefineLabel();
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
if (member.IsNullable)
|
|
il.Emit(OpCodes.Call, member.Nullable_HasValue.GetGetMethod());
|
|
il.Emit(OpCodes.Brtrue, passedNull);
|
|
|
|
il.Emit(OpCodes.Pop);
|
|
il.Emit(OpCodes.Ldnull);
|
|
il.Emit(OpCodes.Br, endSerialize);
|
|
|
|
il.MarkLabel(passedNull);
|
|
}
|
|
|
|
if (member.IsNullable)
|
|
il.Emit(OpCodes.Call, member.Nullable_Value.GetGetMethod());
|
|
|
|
var targetType = GetExpectedValueTypeForType(member.Type);
|
|
if (member.HasConverter)
|
|
{
|
|
var stlocal = GetLocal(member.Type);
|
|
var valLocal = GetLocal(typeof(Value));
|
|
|
|
il.Emit(OpCodes.Stloc, stlocal);
|
|
il.BeginExceptionBlock();
|
|
il.Emit(OpCodes.Ldsfld, member.ConverterField);
|
|
il.Emit(OpCodes.Ldloc, stlocal);
|
|
|
|
if (member.IsGenericConverter)
|
|
{
|
|
var toValueBase = member.ConverterBase.GetMethod(nameof(ValueConverter<int>.ToValue),
|
|
new[] { member.ConverterTarget, typeof(object) });
|
|
var toValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
|
|
.FirstOrDefault(m => m.GetBaseDefinition() == toValueBase) ?? toValueBase;
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, toValue);
|
|
}
|
|
else
|
|
{
|
|
var toValueBase = typeof(IValueConverter).GetMethod(nameof(IValueConverter.ToValue),
|
|
new[] { typeof(object), typeof(object) });
|
|
var toValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
|
|
.FirstOrDefault(m => m.GetBaseDefinition() == toValueBase) ?? toValueBase;
|
|
il.Emit(OpCodes.Box);
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
il.Emit(OpCodes.Call, toValue);
|
|
}
|
|
|
|
il.Emit(OpCodes.Stloc, valLocal);
|
|
il.BeginCatchBlock(typeof(Exception));
|
|
EmitWarnException(il, "Error serializing member using converter");
|
|
il.Emit(OpCodes.Ldnull);
|
|
il.Emit(OpCodes.Stloc, valLocal);
|
|
il.EndExceptionBlock();
|
|
il.Emit(OpCodes.Ldloc, valLocal);
|
|
}
|
|
else if (targetType == typeof(Text))
|
|
{ // only happens when arg is a string or char
|
|
var TextCreate = typeof(Value).GetMethod(nameof(Value.Text));
|
|
if (member.Type == typeof(char))
|
|
{
|
|
var strFromChar = typeof(char).GetMethod(nameof(char.ToString), new[] { typeof(char) });
|
|
il.Emit(OpCodes.Call, strFromChar);
|
|
}
|
|
il.Emit(OpCodes.Call, TextCreate);
|
|
}
|
|
else if (targetType == typeof(Boolean))
|
|
{
|
|
var BoolCreate = typeof(Value).GetMethod(nameof(Value.Bool));
|
|
il.Emit(OpCodes.Call, BoolCreate);
|
|
}
|
|
else if (targetType == typeof(Integer))
|
|
{
|
|
var IntCreate = typeof(Value).GetMethod(nameof(Value.Integer));
|
|
EmitNumberConvertTo(il, IntCreate.GetParameters()[0].ParameterType, member.Type);
|
|
il.Emit(OpCodes.Call, IntCreate);
|
|
}
|
|
else if (targetType == typeof(FloatingPoint))
|
|
{
|
|
var FloatCreate = typeof(Value).GetMethod(nameof(Value.Float));
|
|
EmitNumberConvertTo(il, FloatCreate.GetParameters()[0].ParameterType, member.Type);
|
|
il.Emit(OpCodes.Call, FloatCreate);
|
|
}
|
|
else if (targetType == typeof(List))
|
|
{
|
|
// TODO: impl this (enumerables)
|
|
il.Emit(OpCodes.Pop);
|
|
il.Emit(OpCodes.Ldnull);
|
|
}
|
|
else if (targetType == typeof(Map))
|
|
{
|
|
// TODO: support other aggregate types
|
|
|
|
// for now, we assume that its a generated type implementing IGeneratedStore
|
|
var IGeneratedStore_Serialize = typeof(IGeneratedStore).GetMethod(nameof(IGeneratedStore.Serialize));
|
|
il.Emit(OpCodes.Callvirt, IGeneratedStore_Serialize);
|
|
}
|
|
|
|
il.MarkLabel(endSerialize);
|
|
}
|
|
#endregion
|
|
|
|
#region Deserialize
|
|
|
|
private static Type GetExpectedValueTypeForType(Type valT)
|
|
{
|
|
if (typeof(Value).IsAssignableFrom(valT)) // this is a Value subtype
|
|
return valT;
|
|
if (valT == typeof(string)
|
|
|| valT == typeof(char)) return typeof(Text);
|
|
if (valT == typeof(bool)) return typeof(Boolean);
|
|
if (valT == typeof(byte)
|
|
|| valT == typeof(sbyte)
|
|
|| valT == typeof(short)
|
|
|| valT == typeof(ushort)
|
|
|| valT == typeof(int)
|
|
|| valT == typeof(uint)
|
|
|| valT == typeof(long)
|
|
|| valT == typeof(IntPtr)) return typeof(Integer);
|
|
if (valT == typeof(float)
|
|
|| valT == typeof(double)
|
|
|| valT == typeof(decimal)
|
|
|| valT == typeof(ulong) // ulong gets put into this, because decimal can hold it
|
|
|| valT == typeof(UIntPtr)) return typeof(FloatingPoint);
|
|
if (typeof(IEnumerable).IsAssignableFrom(valT)) return typeof(List);
|
|
|
|
// TODO: fill this out the rest of the way
|
|
|
|
return typeof(Map); // default for various objects
|
|
}
|
|
|
|
private static void EmitDeserializeGeneratedValue(ILGenerator il, SerializedMemberInfo member, Type srcType, GetLocal GetLocal)
|
|
{
|
|
var IGeneratedStore_Deserialize = typeof(IGeneratedStore).GetMethod(nameof(IGeneratedStore.Deserialize));
|
|
|
|
var valuel = GetLocal(srcType, 0);
|
|
var noCreate = il.DefineLabel();
|
|
|
|
il.Emit(OpCodes.Stloc, valuel);
|
|
EmitLoad(il, member, il => il.Emit(OpCodes.Ldarg_0));
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Isinst, typeof(IGeneratedStore));
|
|
il.Emit(OpCodes.Brtrue_S, noCreate);
|
|
il.Emit(OpCodes.Pop);
|
|
EmitCreateChildGenerated(il, member.Type);
|
|
il.MarkLabel(noCreate);
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Ldloc, valuel);
|
|
il.Emit(OpCodes.Callvirt, IGeneratedStore_Deserialize);
|
|
}
|
|
|
|
private static void EmitDeserializeNullable(ILGenerator il, SerializedMemberInfo member, Type expected, GetLocal GetLocal)
|
|
{
|
|
EmitDeserializeValue(il, member, member.NullableWrappedType, expected, GetLocal);
|
|
il.Emit(OpCodes.Newobj, member.Nullable_Construct);
|
|
}
|
|
|
|
// top of stack is the Value to deserialize; the type will be as returned from GetExpectedValueTypeForType
|
|
// after, top of stack will be thing to write to field
|
|
private static void EmitDeserializeValue(ILGenerator il, SerializedMemberInfo member, Type targetType, Type expected, GetLocal GetLocal)
|
|
{
|
|
if (typeof(Value).IsAssignableFrom(targetType)) return; // do nothing
|
|
|
|
if (expected == typeof(Text))
|
|
{
|
|
var getter = expected.GetProperty(nameof(Text.Value)).GetGetMethod();
|
|
il.Emit(OpCodes.Call, getter);
|
|
if (targetType == typeof(char))
|
|
{
|
|
var strIndex = typeof(string).GetProperty("Chars").GetGetMethod(); // string's indexer is specially named Chars
|
|
il.Emit(OpCodes.Ldc_I4_0);
|
|
il.Emit(OpCodes.Call, strIndex);
|
|
}
|
|
}
|
|
else if (expected == typeof(Boolean))
|
|
{
|
|
var getter = expected.GetProperty(nameof(Boolean.Value)).GetGetMethod();
|
|
il.Emit(OpCodes.Call, getter);
|
|
}
|
|
else if (expected == typeof(Integer))
|
|
{
|
|
var getter = expected.GetProperty(nameof(Integer.Value)).GetGetMethod();
|
|
il.Emit(OpCodes.Call, getter);
|
|
EmitNumberConvertTo(il, targetType, getter.ReturnType);
|
|
}
|
|
else if (expected == typeof(FloatingPoint))
|
|
{
|
|
var getter = expected.GetProperty(nameof(FloatingPoint.Value)).GetGetMethod();
|
|
il.Emit(OpCodes.Call, getter);
|
|
EmitNumberConvertTo(il, targetType, getter.ReturnType);
|
|
} // TODO: implement stuff for lists and maps of various types (probably call out somewhere else to figure out what to do)
|
|
else if (expected == typeof(Map))
|
|
{
|
|
EmitDeserializeGeneratedValue(il, member, expected, GetLocal);
|
|
}
|
|
else
|
|
{
|
|
il.Emit(OpCodes.Pop);
|
|
il.Emit(OpCodes.Ldnull);
|
|
}
|
|
}
|
|
|
|
private static void EmitDeserializeConverter(ILGenerator il, SerializedMemberInfo member, Label nextLabel, GetLocal GetLocal)
|
|
{
|
|
var stlocal = GetLocal(typeof(Value));
|
|
var valLocal = GetLocal(member.Type);
|
|
|
|
il.Emit(OpCodes.Stloc, stlocal);
|
|
il.BeginExceptionBlock();
|
|
il.Emit(OpCodes.Ldsfld, member.ConverterField);
|
|
il.Emit(OpCodes.Ldloc, stlocal);
|
|
il.Emit(OpCodes.Ldarg_0);
|
|
|
|
if (member.IsGenericConverter)
|
|
{
|
|
var fromValueBase = member.ConverterBase.GetMethod(nameof(ValueConverter<int>.FromValue),
|
|
new[] { typeof(Value), typeof(object) });
|
|
var fromValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
|
|
.FirstOrDefault(m => m.GetBaseDefinition() == fromValueBase) ?? fromValueBase;
|
|
il.Emit(OpCodes.Call, fromValue);
|
|
}
|
|
else
|
|
{
|
|
var fromValueBase = typeof(IValueConverter).GetMethod(nameof(IValueConverter.FromValue),
|
|
new[] { typeof(Value), typeof(object) });
|
|
var fromValue = member.Converter.GetMethods(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance)
|
|
.FirstOrDefault(m => m.GetBaseDefinition() == fromValueBase) ?? fromValueBase;
|
|
il.Emit(OpCodes.Call, fromValue);
|
|
if (member.Type.IsValueType)
|
|
il.Emit(OpCodes.Unbox);
|
|
}
|
|
|
|
il.Emit(OpCodes.Stloc, valLocal);
|
|
il.BeginCatchBlock(typeof(Exception));
|
|
EmitWarnException(il, "Error occurred while deserializing");
|
|
il.Emit(OpCodes.Leave, nextLabel);
|
|
il.EndExceptionBlock();
|
|
il.Emit(OpCodes.Ldloc, valLocal);
|
|
}
|
|
|
|
// emit takes the value being deserialized, logs on error, leaves nothing on stack
|
|
private static void EmitDeserializeMember(ILGenerator il, SerializedMemberInfo member, Label nextLabel, Action<ILGenerator> getValue, GetLocal GetLocal)
|
|
{
|
|
var Object_GetType = typeof(object).GetMethod(nameof(Object.GetType));
|
|
|
|
var implLabel = il.DefineLabel();
|
|
var passedTypeCheck = il.DefineLabel();
|
|
var expectType = GetExpectedValueTypeForType(member.IsNullable ? member.NullableWrappedType : member.Type);
|
|
|
|
il.Emit(OpCodes.Dup);
|
|
il.Emit(OpCodes.Brtrue_S, implLabel); // null check
|
|
|
|
if (!member.AllowNull)
|
|
{
|
|
il.Emit(OpCodes.Pop);
|
|
EmitLogError(il, $"Member {member.Name} ({member.Type}) not nullable", tailcall: false,
|
|
expected: il => EmitTypeof(il, expectType));
|
|
il.Emit(OpCodes.Br, nextLabel);
|
|
}
|
|
else if (member.IsNullable)
|
|
{
|
|
il.Emit(OpCodes.Pop);
|
|
var valTLocal = GetLocal(member.Type, 0);
|
|
il.Emit(OpCodes.Ldloca, valTLocal);
|
|
il.Emit(OpCodes.Initobj, member.Type);
|
|
EmitStore(il, member, il => il.Emit(OpCodes.Ldloc, valTLocal));
|
|
il.Emit(OpCodes.Br, nextLabel);
|
|
}
|
|
else
|
|
{
|
|
il.Emit(OpCodes.Pop);
|
|
EmitStore(il, member, il => il.Emit(OpCodes.Ldnull));
|
|
il.Emit(OpCodes.Br, nextLabel);
|
|
}
|
|
|
|
|
|
if (!member.HasConverter)
|
|
{
|
|
il.MarkLabel(implLabel);
|
|
il.Emit(OpCodes.Isinst, expectType); //replaces on stack
|
|
il.Emit(OpCodes.Dup); // duplicate cloned value
|
|
il.Emit(OpCodes.Brtrue, passedTypeCheck); // null check
|
|
}
|
|
|
|
var errorHandle = il.DefineLabel();
|
|
|
|
// special cases to handle coersion between Float and Int
|
|
if (member.HasConverter)
|
|
il.MarkLabel(implLabel);
|
|
else if (expectType == typeof(FloatingPoint))
|
|
{
|
|
var specialTypeCheck = il.DefineLabel();
|
|
il.Emit(OpCodes.Pop);
|
|
getValue(il);
|
|
il.Emit(OpCodes.Isinst, typeof(Integer)); //replaces on stack
|
|
il.Emit(OpCodes.Dup); // duplicate cloned value
|
|
il.Emit(OpCodes.Brfalse, errorHandle); // null check
|
|
|
|
var Integer_CoerceToFloat = typeof(Integer).GetMethod(nameof(Integer.AsFloat));
|
|
il.Emit(OpCodes.Call, Integer_CoerceToFloat);
|
|
|
|
il.Emit(OpCodes.Br, passedTypeCheck);
|
|
}
|
|
else if (expectType == typeof(Integer))
|
|
{
|
|
var specialTypeCheck = il.DefineLabel();
|
|
il.Emit(OpCodes.Pop);
|
|
getValue(il);
|
|
il.Emit(OpCodes.Isinst, typeof(FloatingPoint)); //replaces on stack
|
|
il.Emit(OpCodes.Dup); // duplicate cloned value
|
|
il.Emit(OpCodes.Brfalse, errorHandle); // null check
|
|
|
|
var Float_CoerceToInt = typeof(FloatingPoint).GetMethod(nameof(FloatingPoint.AsInteger));
|
|
il.Emit(OpCodes.Call, Float_CoerceToInt);
|
|
|
|
il.Emit(OpCodes.Br, passedTypeCheck);
|
|
}
|
|
|
|
if (!member.HasConverter)
|
|
{
|
|
il.MarkLabel(errorHandle);
|
|
il.Emit(OpCodes.Pop);
|
|
EmitLogError(il, $"Unexpected type deserializing {member.Name}", tailcall: false,
|
|
expected: il => EmitTypeof(il, expectType), found: il =>
|
|
{
|
|
getValue(il);
|
|
il.Emit(OpCodes.Callvirt, Object_GetType);
|
|
});
|
|
il.Emit(OpCodes.Br, nextLabel);
|
|
}
|
|
|
|
il.MarkLabel(passedTypeCheck);
|
|
|
|
var local = GetLocal(member.Type, 0);
|
|
if (member.HasConverter) EmitDeserializeConverter(il, member, nextLabel, GetLocal);
|
|
else if (member.IsNullable) EmitDeserializeNullable(il, member, expectType, GetLocal);
|
|
else EmitDeserializeValue(il, member, member.Type, expectType, GetLocal);
|
|
il.Emit(OpCodes.Stloc, local);
|
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EmitStore(il, member, il => il.Emit(OpCodes.Ldloc, local));
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}
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#endregion
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}
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|
}
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