diff options
Diffstat (limited to 'src/SMAPI/Framework/ModLoading')
4 files changed, 80 insertions, 65 deletions
diff --git a/src/SMAPI/Framework/ModLoading/AssemblyLoader.cs b/src/SMAPI/Framework/ModLoading/AssemblyLoader.cs index 070ee803..72b547b1 100644 --- a/src/SMAPI/Framework/ModLoading/AssemblyLoader.cs +++ b/src/SMAPI/Framework/ModLoading/AssemblyLoader.cs @@ -1,5 +1,3 @@ -#nullable disable - using System; using System.Collections.Generic; using System.IO; @@ -96,7 +94,12 @@ namespace StardewModdingAPI.Framework.ModLoading // get referenced local assemblies AssemblyParseResult[] assemblies; { - HashSet<string> visitedAssemblyNames = new HashSet<string>(AppDomain.CurrentDomain.GetAssemblies().Select(p => p.GetName().Name)); // don't try loading assemblies that are already loaded + HashSet<string> visitedAssemblyNames = new HashSet<string>( // don't try loading assemblies that are already loaded + from assembly in AppDomain.CurrentDomain.GetAssemblies() + let name = assembly.GetName().Name + where name != null + select name + ); assemblies = this.GetReferencedLocalAssemblies(new FileInfo(assemblyPath), visitedAssemblyNames, this.AssemblyDefinitionResolver).ToArray(); } @@ -113,11 +116,11 @@ namespace StardewModdingAPI.Framework.ModLoading // rewrite & load assemblies in leaf-to-root order bool oneAssembly = assemblies.Length == 1; - Assembly lastAssembly = null; + Assembly? lastAssembly = null; HashSet<string> loggedMessages = new HashSet<string>(); foreach (AssemblyParseResult assembly in assemblies) { - if (assembly.Status == AssemblyLoadStatus.AlreadyLoaded) + if (!assembly.HasDefinition) continue; // rewrite assembly @@ -165,7 +168,7 @@ namespace StardewModdingAPI.Framework.ModLoading throw new IncompatibleInstructionException(); // last assembly loaded is the root - return lastAssembly; + return lastAssembly!; } /// <summary>Get whether an assembly is loaded.</summary> @@ -174,7 +177,8 @@ namespace StardewModdingAPI.Framework.ModLoading { try { - return this.AssemblyDefinitionResolver.Resolve(reference) != null; + _ = this.AssemblyDefinitionResolver.Resolve(reference); + return true; } catch (AssemblyResolutionException) { @@ -190,7 +194,7 @@ namespace StardewModdingAPI.Framework.ModLoading /// assemblies (especially with Mono). Since this is meant to be called on <see cref="AppDomain.AssemblyResolve"/>, /// the implicit assumption is that loading the exact assembly failed. /// </remarks> - public static Assembly ResolveAssembly(string name) + public static Assembly? ResolveAssembly(string name) { string shortName = name.Split(new[] { ',' }, 2).First(); // get simple name (without version and culture) return AppDomain.CurrentDomain @@ -212,7 +216,8 @@ namespace StardewModdingAPI.Framework.ModLoading /// <summary>Track an object for disposal as part of the assembly loader.</summary> /// <typeparam name="T">The instance type.</typeparam> /// <param name="instance">The disposable instance.</param> - private T TrackForDisposal<T>(T instance) where T : IDisposable + private T TrackForDisposal<T>(T instance) + where T : IDisposable { this.Disposables.Add(instance); return instance; @@ -321,9 +326,9 @@ namespace StardewModdingAPI.Framework.ModLoading // rewrite types using custom attributes foreach (TypeDefinition type in module.GetTypes()) { - foreach (var attr in type.CustomAttributes) + foreach (CustomAttribute attr in type.CustomAttributes) { - foreach (var conField in attr.ConstructorArguments) + foreach (CustomAttributeArgument conField in attr.ConstructorArguments) { if (conField.Value is TypeReference typeRef) this.ChangeTypeScope(typeRef); @@ -382,7 +387,7 @@ namespace StardewModdingAPI.Framework.ModLoading { // get message template // ($phrase is replaced with the noun phrase or messages) - string template = null; + string? template = null; switch (result) { case InstructionHandleResult.Rewritten: @@ -441,20 +446,20 @@ namespace StardewModdingAPI.Framework.ModLoading // format messages string phrase = handler.Phrases.Any() ? string.Join(", ", handler.Phrases) - : handler.DefaultPhrase ?? handler.GetType().Name; + : handler.DefaultPhrase; this.Monitor.LogOnce(loggedMessages, template.Replace("$phrase", phrase)); } /// <summary>Get the correct reference to use for compatibility with the current platform.</summary> /// <param name="type">The type reference to rewrite.</param> - private void ChangeTypeScope(TypeReference type) + private void ChangeTypeScope(TypeReference? type) { // check skip conditions if (type == null || type.FullName.StartsWith("System.")) return; // get assembly - if (!this.TypeAssemblies.TryGetValue(type.FullName, out Assembly assembly)) + if (!this.TypeAssemblies.TryGetValue(type.FullName, out Assembly? assembly)) return; // replace scope diff --git a/src/SMAPI/Framework/ModLoading/AssemblyParseResult.cs b/src/SMAPI/Framework/ModLoading/AssemblyParseResult.cs index 56bd5a8b..b133f8d6 100644 --- a/src/SMAPI/Framework/ModLoading/AssemblyParseResult.cs +++ b/src/SMAPI/Framework/ModLoading/AssemblyParseResult.cs @@ -1,5 +1,5 @@ -#nullable disable - +using System; +using System.Diagnostics.CodeAnalysis; using System.IO; using Mono.Cecil; @@ -15,11 +15,15 @@ namespace StardewModdingAPI.Framework.ModLoading public readonly FileInfo File; /// <summary>The assembly definition.</summary> - public readonly AssemblyDefinition Definition; + public readonly AssemblyDefinition? Definition; /// <summary>The result of the assembly load.</summary> public AssemblyLoadStatus Status; + /// <summary>Whether the <see cref="Definition"/> is loaded and ready (i.e. the <see cref="Status"/> is not <see cref="AssemblyLoadStatus.AlreadyLoaded"/> or <see cref="AssemblyLoadStatus.Failed"/>).</summary> + [MemberNotNullWhen(true, nameof(AssemblyParseResult.Definition))] + public bool HasDefinition => this.Status == AssemblyLoadStatus.Okay; + /********* ** Public methods @@ -28,11 +32,14 @@ namespace StardewModdingAPI.Framework.ModLoading /// <param name="file">The original assembly file.</param> /// <param name="assembly">The assembly definition.</param> /// <param name="status">The result of the assembly load.</param> - public AssemblyParseResult(FileInfo file, AssemblyDefinition assembly, AssemblyLoadStatus status) + public AssemblyParseResult(FileInfo file, AssemblyDefinition? assembly, AssemblyLoadStatus status) { this.File = file; this.Definition = assembly; this.Status = status; + + if (status == AssemblyLoadStatus.Okay && assembly == null) + throw new InvalidOperationException($"Invalid assembly parse result: load status {status} with a null assembly."); } } } diff --git a/src/SMAPI/Framework/ModLoading/ModResolver.cs b/src/SMAPI/Framework/ModLoading/ModResolver.cs index 4fdeefbc..afb388d0 100644 --- a/src/SMAPI/Framework/ModLoading/ModResolver.cs +++ b/src/SMAPI/Framework/ModLoading/ModResolver.cs @@ -1,7 +1,6 @@ -#nullable disable - using System; using System.Collections.Generic; +using System.Diagnostics.CodeAnalysis; using System.IO; using System.Linq; using StardewModdingAPI.Toolkit; @@ -28,10 +27,10 @@ namespace StardewModdingAPI.Framework.ModLoading { foreach (ModFolder folder in toolkit.GetModFolders(rootPath)) { - Manifest manifest = folder.Manifest; + Manifest? manifest = folder.Manifest; // parse internal data record (if any) - ModDataRecordVersionedFields dataRecord = modDatabase.Get(manifest?.UniqueID)?.GetVersionedFields(manifest); + ModDataRecordVersionedFields? dataRecord = modDatabase.Get(manifest?.UniqueID)?.GetVersionedFields(manifest); // apply defaults if (manifest != null && dataRecord?.UpdateKey is not null) @@ -43,7 +42,7 @@ namespace StardewModdingAPI.Framework.ModLoading ? ModMetadataStatus.Found : ModMetadataStatus.Failed; - var metadata = new ModMetadata(folder.DisplayName, folder.Directory.FullName, rootPath, manifest, dataRecord, isIgnored: shouldIgnore); + IModMetadata metadata = new ModMetadata(folder.DisplayName, folder.Directory.FullName, rootPath, manifest, dataRecord, isIgnored: shouldIgnore); if (shouldIgnore) metadata.SetStatus(status, ModFailReason.DisabledByDotConvention, "disabled by dot convention"); else @@ -57,7 +56,9 @@ namespace StardewModdingAPI.Framework.ModLoading /// <param name="mods">The mod manifests to validate.</param> /// <param name="apiVersion">The current SMAPI version.</param> /// <param name="getUpdateUrl">Get an update URL for an update key (if valid).</param> - public void ValidateManifests(IEnumerable<IModMetadata> mods, ISemanticVersion apiVersion, Func<string, string> getUpdateUrl) + [SuppressMessage("ReSharper", "ConstantConditionalAccessQualifier", Justification = "Manifest values may be null before they're validated.")] + [SuppressMessage("ReSharper", "ConditionIsAlwaysTrueOrFalse", Justification = "Manifest values may be null before they're validated.")] + public void ValidateManifests(IEnumerable<IModMetadata> mods, ISemanticVersion apiVersion, Func<string, string?> getUpdateUrl) { mods = mods.ToArray(); @@ -84,7 +85,7 @@ namespace StardewModdingAPI.Framework.ModLoading List<string> updateUrls = new List<string>(); foreach (UpdateKey key in mod.GetUpdateKeys(validOnly: true)) { - string url = getUpdateUrl(key.ToString()); + string? url = getUpdateUrl(key.ToString()); if (url != null) updateUrls.Add(url); } @@ -94,7 +95,7 @@ namespace StardewModdingAPI.Framework.ModLoading // build error string error = $"{reasonPhrase}. Please check for a "; - if (mod.DataRecord.StatusUpperVersion == null || mod.Manifest.Version.Equals(mod.DataRecord.StatusUpperVersion)) + if (mod.DataRecord.StatusUpperVersion == null || mod.Manifest.Version?.Equals(mod.DataRecord.StatusUpperVersion) == true) error += "newer version"; else error += $"version newer than {mod.DataRecord.StatusUpperVersion}"; @@ -133,21 +134,21 @@ namespace StardewModdingAPI.Framework.ModLoading if (hasDll) { // invalid filename format - if (mod.Manifest.EntryDll.Intersect(Path.GetInvalidFileNameChars()).Any()) + if (mod.Manifest.EntryDll!.Intersect(Path.GetInvalidFileNameChars()).Any()) { mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, $"its manifest has invalid filename '{mod.Manifest.EntryDll}' for the EntryDLL field."); continue; } // invalid path - if (!File.Exists(Path.Combine(mod.DirectoryPath, mod.Manifest.EntryDll))) + if (!File.Exists(Path.Combine(mod.DirectoryPath, mod.Manifest.EntryDll!))) { mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, $"its DLL '{mod.Manifest.EntryDll}' doesn't exist."); continue; } // invalid capitalization - string actualFilename = new DirectoryInfo(mod.DirectoryPath).GetFiles(mod.Manifest.EntryDll).FirstOrDefault()?.Name; + string? actualFilename = new DirectoryInfo(mod.DirectoryPath).GetFiles(mod.Manifest.EntryDll!).FirstOrDefault()?.Name; if (actualFilename != mod.Manifest.EntryDll) { mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, $"its {nameof(IManifest.EntryDll)} value '{mod.Manifest.EntryDll}' doesn't match the actual file capitalization '{actualFilename}'. The capitalization must match for crossplatform compatibility."); @@ -159,7 +160,7 @@ namespace StardewModdingAPI.Framework.ModLoading else { // invalid content pack ID - if (string.IsNullOrWhiteSpace(mod.Manifest.ContentPackFor.UniqueID)) + if (string.IsNullOrWhiteSpace(mod.Manifest.ContentPackFor!.UniqueID)) { mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, $"its manifest declares {nameof(IManifest.ContentPackFor)} without its required {nameof(IManifestContentPackFor.UniqueID)} field."); continue; @@ -190,7 +191,7 @@ namespace StardewModdingAPI.Framework.ModLoading mod.SetStatus(ModMetadataStatus.Failed, ModFailReason.InvalidManifest, "its manifest specifies an invalid ID (IDs must only contain letters, numbers, underscores, periods, or hyphens)."); // validate dependencies - foreach (var dependency in mod.Manifest.Dependencies) + foreach (IManifestDependency? dependency in mod.Manifest.Dependencies) { // null dependency if (dependency == null) @@ -328,8 +329,11 @@ namespace StardewModdingAPI.Framework.ModLoading string[] failedLabels = ( from entry in dependencies - where entry.Mod != null && entry.MinVersion != null && entry.MinVersion.IsNewerThan(entry.Mod.Manifest.Version) - select $"{entry.Mod.DisplayName} (needs {entry.MinVersion} or later)" + where + entry.Mod != null + && entry.MinVersion != null + && entry.MinVersion.IsNewerThan(entry.Mod.Manifest.Version) + select $"{entry.Mod!.DisplayName} (needs {entry.MinVersion} or later)" ) .ToArray(); if (failedLabels.Any()) @@ -345,16 +349,14 @@ namespace StardewModdingAPI.Framework.ModLoading states[mod] = ModDependencyStatus.Checking; // recursively sort dependencies - foreach (var dependency in dependencies) + foreach (ModDependency dependency in dependencies) { - IModMetadata requiredMod = dependency.Mod; - var subchain = new List<IModMetadata>(currentChain) { mod }; - - // ignore missing optional dependency - if (!dependency.IsRequired && requiredMod == null) - continue; + IModMetadata? requiredMod = dependency.Mod; + if (requiredMod == null) + continue; // missing dependencies are handled earlier // detect dependency loop + var subchain = new List<IModMetadata>(currentChain) { mod }; if (states[requiredMod] == ModDependencyStatus.Checking) { sortedMods.Push(mod); @@ -363,8 +365,8 @@ namespace StardewModdingAPI.Framework.ModLoading } // recursively process each dependency - var substatus = this.ProcessDependencies(mods, modDatabase, requiredMod, states, sortedMods, subchain); - switch (substatus) + var subStatus = this.ProcessDependencies(mods, modDatabase, requiredMod, states, sortedMods, subchain); + switch (subStatus) { // sorted successfully case ModDependencyStatus.Sorted: @@ -380,7 +382,7 @@ namespace StardewModdingAPI.Framework.ModLoading // unexpected status case ModDependencyStatus.Queued: case ModDependencyStatus.Checking: - throw new InvalidModStateException($"Something went wrong sorting dependencies: mod '{requiredMod.DisplayName}' unexpectedly stayed in the '{substatus}' status."); + throw new InvalidModStateException($"Something went wrong sorting dependencies: mod '{requiredMod.DisplayName}' unexpectedly stayed in the '{subStatus}' status."); // sanity check default: @@ -399,14 +401,11 @@ namespace StardewModdingAPI.Framework.ModLoading /// <param name="loadedMods">The loaded mods.</param> private IEnumerable<ModDependency> GetDependenciesFrom(IManifest manifest, IModMetadata[] loadedMods) { - IModMetadata FindMod(string id) => loadedMods.FirstOrDefault(m => m.HasID(id)); + IModMetadata? FindMod(string id) => loadedMods.FirstOrDefault(m => m.HasID(id)); // yield dependencies - if (manifest.Dependencies != null) - { - foreach (var entry in manifest.Dependencies) - yield return new ModDependency(entry.UniqueID, entry.MinimumVersion, FindMod(entry.UniqueID), entry.IsRequired); - } + foreach (IManifestDependency entry in manifest.Dependencies) + yield return new ModDependency(entry.UniqueID, entry.MinimumVersion, FindMod(entry.UniqueID), entry.IsRequired); // yield content pack parent if (manifest.ContentPackFor != null) @@ -415,10 +414,10 @@ namespace StardewModdingAPI.Framework.ModLoading /// <summary>Get a technical message indicating why a mod's compatibility status was overridden, if applicable.</summary> /// <param name="mod">The mod metadata.</param> - private string GetTechnicalReasonForStatusOverride(IModMetadata mod) + private string? GetTechnicalReasonForStatusOverride(IModMetadata mod) { // get compatibility list record - var data = mod.DataRecord; + ModDataRecordVersionedFields? data = mod.DataRecord; if (data == null) return null; @@ -432,14 +431,14 @@ namespace StardewModdingAPI.Framework.ModLoading }; // get reason - string[] reasons = new[] { mod.DataRecord.StatusReasonPhrase, mod.DataRecord.StatusReasonDetails } + string?[] reasons = new[] { data.StatusReasonPhrase, data.StatusReasonDetails } .Where(p => !string.IsNullOrWhiteSpace(p)) .ToArray(); // build message return $"marked {statusLabel} in SMAPI's internal compatibility list for " - + (mod.DataRecord.StatusUpperVersion != null ? $"versions up to {mod.DataRecord.StatusUpperVersion}" : "all versions") + + (data.StatusUpperVersion != null ? $"versions up to {data.StatusUpperVersion}" : "all versions") + ": " + (reasons.Any() ? string.Join(": ", reasons) : "no reason given") + "."; @@ -459,13 +458,13 @@ namespace StardewModdingAPI.Framework.ModLoading public string ID { get; } /// <summary>The minimum required version (if any).</summary> - public ISemanticVersion MinVersion { get; } + public ISemanticVersion? MinVersion { get; } /// <summary>Whether the mod shouldn't be loaded if the dependency isn't available.</summary> public bool IsRequired { get; } /// <summary>The loaded mod that fulfills the dependency (if available).</summary> - public IModMetadata Mod { get; } + public IModMetadata? Mod { get; } /********* @@ -476,7 +475,7 @@ namespace StardewModdingAPI.Framework.ModLoading /// <param name="minVersion">The minimum required version (if any).</param> /// <param name="mod">The loaded mod that fulfills the dependency (if available).</param> /// <param name="isRequired">Whether the mod shouldn't be loaded if the dependency isn't available.</param> - public ModDependency(string id, ISemanticVersion minVersion, IModMetadata mod, bool isRequired) + public ModDependency(string id, ISemanticVersion? minVersion, IModMetadata? mod, bool isRequired) { this.ID = id; this.MinVersion = minVersion; diff --git a/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs b/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs index 806fca62..d5f4cf4a 100644 --- a/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs +++ b/src/SMAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs @@ -1,5 +1,3 @@ -#nullable disable - using System; using System.Collections.Generic; using System.Reflection; @@ -33,13 +31,19 @@ namespace StardewModdingAPI.Framework.ModLoading.Rewriters /// <param name="toFieldName">The new field name to reference.</param> public FieldReplaceRewriter AddField(Type fromType, string fromFieldName, Type toType, string toFieldName) { + // validate parameters + if (fromType == null) + throw new InvalidOperationException("Can't replace a field on a null source type."); + if (toType == null) + throw new InvalidOperationException("Can't replace a field on a null target type."); + // get full type name - string fromTypeName = fromType?.FullName; + string? fromTypeName = fromType.FullName; if (fromTypeName == null) throw new InvalidOperationException($"Can't replace field for invalid type reference {toType}."); // get target field - FieldInfo toField = toType.GetField(toFieldName); + FieldInfo? toField = toType.GetField(toFieldName); if (toField == null) throw new InvalidOperationException($"The {toType.FullName} class doesn't have a {toFieldName} field."); @@ -54,15 +58,15 @@ namespace StardewModdingAPI.Framework.ModLoading.Rewriters /// <inheritdoc /> public override bool Handle(ModuleDefinition module, ILProcessor cil, Instruction instruction) { - FieldReference fieldRef = RewriteHelper.AsFieldReference(instruction); - string declaringType = fieldRef?.DeclaringType?.FullName; + FieldReference? fieldRef = RewriteHelper.AsFieldReference(instruction); + string? declaringType = fieldRef?.DeclaringType?.FullName; // get mapped field - if (declaringType == null || !this.FieldMaps.TryGetValue(declaringType, out var fieldMap) || !fieldMap.TryGetValue(fieldRef.Name, out FieldInfo toField)) + if (declaringType == null || !this.FieldMaps.TryGetValue(declaringType, out var fieldMap) || !fieldMap.TryGetValue(fieldRef!.Name, out FieldInfo? toField)) return false; // replace with new field - this.Phrases.Add($"{fieldRef.DeclaringType.Name}.{fieldRef.Name} field"); + this.Phrases.Add($"{fieldRef.DeclaringType!.Name}.{fieldRef.Name} field"); instruction.Operand = module.ImportReference(toField); return this.MarkRewritten(); } |