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add prototype of mod-provided APIs (#409)

This commit is contained in:
Jesse Plamondon-Willard 2017-12-11 23:33:10 -05:00
parent 971aff8368
commit 2c909f26fc
7 changed files with 145 additions and 41 deletions
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6
src/SMAPI/Framework/IModMetadata.cs
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@ -30,6 +30,9 @@ namespace StardewModdingAPI.Framework
/// <summary>The mod instance (if it was loaded).</summary>
IMod Mod { get; }
/// <summary>The mod-provided API (if any).</summary>
IModProvidedApi Api { get; }
/*********
** Public methods
@ -42,6 +45,7 @@ namespace StardewModdingAPI.Framework
/// <summary>Set the mod instance.</summary>
/// <param name="mod">The mod instance to set.</param>
IModMetadata SetMod(IMod mod);
/// <param name="api">The mod-provided API (if any).</param>
IModMetadata SetMod(IMod mod, IModProvidedApi api);
}
}

6
src/SMAPI/Framework/ModHelpers/ModRegistryHelper.cs
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@ -45,5 +45,11 @@ namespace StardewModdingAPI.Framework.ModHelpers
{
return this.Registry.Get(uniqueID) != null;
}
/// <summary>Get the API provided by a mod, or <c>null</c> if it has none. This signature requires using the <see cref="IModHelper.Reflection"/> API to access the API's properties and methods.</summary>
public IModProvidedApi GetApi(string uniqueID)
{
return this.Registry.Get(uniqueID)?.Api;
}
}
}

7
src/SMAPI/Framework/ModLoading/ModMetadata.cs
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@ -29,6 +29,9 @@ namespace StardewModdingAPI.Framework.ModLoading
/// <summary>The mod instance (if it was loaded).</summary>
public IMod Mod { get; private set; }
/// <summary>The mod-provided API (if any).</summary>
public IModProvidedApi Api { get; private set; }
/*********
** Public methods
@ -59,9 +62,11 @@ namespace StardewModdingAPI.Framework.ModLoading
/// <summary>Set the mod instance.</summary>
/// <param name="mod">The mod instance to set.</param>
public IModMetadata SetMod(IMod mod)
/// <param name="api">The mod-provided API (if any).</param>
public IModMetadata SetMod(IMod mod, IModProvidedApi api)
{
this.Mod = mod;
this.Api = api;
return this;
}
}

6
src/SMAPI/IModProvidedApi.cs Normal file
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@ -0,0 +1,6 @@
namespace StardewModdingAPI
{
/// <summary>An API provided by a mod for other mods to use.</summary>
/// <remarks>This is a marker interface. Each mod can only have one implementation of <see cref="IModProvidedApi"/>.</remarks>
public interface IModProvidedApi { }
}

8
src/SMAPI/IModRegistry.cs
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@ -1,4 +1,4 @@
using System.Collections.Generic;
using System.Collections.Generic;
namespace StardewModdingAPI
{
@ -16,5 +16,9 @@ namespace StardewModdingAPI
/// <summary>Get whether a mod has been loaded.</summary>
/// <param name="uniqueID">The mod's unique ID.</param>
bool IsLoaded(string uniqueID);
/// <summary>Get the API provided by a mod, or <c>null</c> if it has none. This signature requires using the <see cref="IModHelper.Reflection"/> API to access the API's properties and methods.</summary>
/// <param name="uniqueID">The mod's unique ID.</param>
IModProvidedApi GetApi(string uniqueID);
}
}
}

152
src/SMAPI/Program.cs
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@ -696,55 +696,34 @@ namespace StardewModdingAPI
continue;
}
// validate assembly
try
{
int modEntries = modAssembly.DefinedTypes.Count(type => typeof(Mod).IsAssignableFrom(type) && !type.IsAbstract);
if (modEntries == 0)
{
TrackSkip(metadata, $"its DLL has no '{nameof(Mod)}' subclass.");
continue;
}
if (modEntries > 1)
{
TrackSkip(metadata, $"its DLL contains multiple '{nameof(Mod)}' subclasses.");
continue;
}
}
catch (Exception ex)
{
TrackSkip(metadata, $"its DLL couldn't be loaded:\n{ex.GetLogSummary()}");
continue;
}
// initialise mod
try
{
// get implementation
TypeInfo modEntryType = modAssembly.DefinedTypes.First(type => typeof(Mod).IsAssignableFrom(type) && !type.IsAbstract);
Mod mod = (Mod)modAssembly.CreateInstance(modEntryType.ToString());
if (mod == null)
// init mod helpers
IMonitor monitor = this.GetSecondaryMonitor(metadata.DisplayName);
IModHelper modHelper;
{
TrackSkip(metadata, "its entry class couldn't be instantiated.");
continue;
}
// inject data
{
IMonitor monitor = this.GetSecondaryMonitor(metadata.DisplayName);
ICommandHelper commandHelper = new CommandHelper(manifest.UniqueID, metadata.DisplayName, this.CommandManager);
IContentHelper contentHelper = new ContentHelper(contentManager, metadata.DirectoryPath, manifest.UniqueID, metadata.DisplayName, monitor);
IReflectionHelper reflectionHelper = new ReflectionHelper(manifest.UniqueID, metadata.DisplayName, this.Reflection, this.DeprecationManager);
IModRegistry modRegistryHelper = new ModRegistryHelper(manifest.UniqueID, this.ModRegistry);
ITranslationHelper translationHelper = new TranslationHelper(manifest.UniqueID, manifest.Name, contentManager.GetLocale(), contentManager.GetCurrentLanguage());
mod.ModManifest = manifest;
mod.Helper = new ModHelper(manifest.UniqueID, metadata.DirectoryPath, jsonHelper, contentHelper, commandHelper, modRegistryHelper, reflectionHelper, translationHelper);
mod.Monitor = monitor;
modHelper = new ModHelper(manifest.UniqueID, metadata.DirectoryPath, jsonHelper, contentHelper, commandHelper, modRegistryHelper, reflectionHelper, translationHelper);
}
// get mod instances
if (!this.TryLoadModEntry(modAssembly, error => TrackSkip(metadata, error), out Mod mod))
continue;
if (this.TryLoadModProvidedApi(modAssembly, modHelper, monitor, error => this.Monitor.Log($"Failed loading {metadata.DisplayName}'s mod-provided API. Integrations may not work correctly. Error: {error}", LogLevel.Warn), out IModProvidedApi api))
this.Monitor.Log($" Found mod-provided API ({api.GetType().FullName}).", LogLevel.Trace);
// init mod
mod.ModManifest = manifest;
mod.Helper = modHelper;
mod.Monitor = monitor;
// track mod
metadata.SetMod(mod);
metadata.SetMod(mod, api);
this.ModRegistry.Add(metadata);
}
catch (Exception ex)
@ -854,6 +833,105 @@ namespace StardewModdingAPI
}
}
/// <summary>Load a mod's entry class.</summary>
/// <param name="modAssembly">The mod assembly.</param>
/// <param name="onError">A callback invoked when loading fails.</param>
/// <param name="mod">The loaded instance.</param>
private bool TryLoadModEntry(Assembly modAssembly, Action<string> onError, out Mod mod)
{
mod = null;
// find type
TypeInfo[] modEntries = modAssembly.DefinedTypes.Where(type => typeof(Mod).IsAssignableFrom(type) && !type.IsAbstract).Take(2).ToArray();
if (modEntries.Length == 0)
{
onError($"its DLL has no '{nameof(Mod)}' subclass.");
return false;
}
if (modEntries.Length > 1)
{
onError($"its DLL contains multiple '{nameof(Mod)}' subclasses.");
return false;
}
// get implementation
mod = (Mod)modAssembly.CreateInstance(modEntries[0].ToString());
if (mod == null)
{
onError("its entry class couldn't be instantiated.");
return false;
}
return true;
}
/// <summary>Load a mod's <see cref="IModProvidedApi"/> implementation.</summary>
/// <param name="modAssembly">The mod assembly.</param>
/// <param name="modHelper">The mod's helper instance.</param>
/// <param name="monitor">The mod's monitor instance.</param>
/// <param name="onError">A callback invoked when loading fails.</param>
/// <param name="api">The loaded instance.</param>
private bool TryLoadModProvidedApi(Assembly modAssembly, IModHelper modHelper, IMonitor monitor, Action<string> onError, out IModProvidedApi api)
{
api = null;
// find type
TypeInfo[] apis = modAssembly.DefinedTypes.Where(type => typeof(IModProvidedApi).IsAssignableFrom(type) && !type.IsAbstract).Take(2).ToArray();
if (apis.Length == 0)
return false;
if (apis.Length > 1)
{
onError($"its DLL contains multiple '{nameof(IModProvidedApi)}' implementations.");
return false;
}
// get constructor
ConstructorInfo constructor = (
from constr in apis[0].GetConstructors()
let args = constr.GetParameters()
where
!args.Any()
|| args.All(arg => typeof(IModHelper).IsAssignableFrom(arg.ParameterType) || typeof(IMonitor).IsAssignableFrom(arg.ParameterType))
orderby args.Length descending
select constr
).FirstOrDefault();
if (constructor == null)
{
onError($"its {nameof(IModProvidedApi)} must have a constructor with zero arguments, or only arguments of type {nameof(IModHelper)} or {nameof(IMonitor)}.");
return false;
}
// construct instance
try
{
// prepare constructor args
ParameterInfo[] args = constructor.GetParameters();
object[] values = new object[args.Length];
for (int i = 0; i < args.Length; i++)
{
if (typeof(IModHelper).IsAssignableFrom(args[i].ParameterType))
values[i] = modHelper;
else if (typeof(IMonitor).IsAssignableFrom(args[i].ParameterType))
values[i] = monitor;
else
{
// shouldn't happen
onError($"its {nameof(IModProvidedApi)} instance's constructor has unexpected argument type {args[i].ParameterType.FullName}.");
return false;
}
}
// instantiate
api = (IModProvidedApi)constructor.Invoke(values);
return true;
}
catch (Exception ex)
{
onError($"its {nameof(IModProvidedApi)} couldn't be constructed: {ex.GetLogSummary()}");
return false;
}
}
/// <summary>Reload translations for all mods.</summary>
private void ReloadTranslations()
{

1
src/SMAPI/StardewModdingAPI.csproj
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@ -114,6 +114,7 @@
<Compile Include="IReflectedField.cs" />
<Compile Include="IReflectedMethod.cs" />
<Compile Include="IReflectedProperty.cs" />
<Compile Include="IModProvidedApi.cs" />
<Compile Include="Metadata\CoreAssets.cs" />
<Compile Include="ContentSource.cs" />
<Compile Include="Events\ContentEvents.cs" />