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-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/AssemblyLoader.cs4
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Finders/EventFinder.cs83
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Finders/FieldFinder.cs83
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Finders/MethodFinder.cs83
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Finders/PropertyFinder.cs83
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Finders/TypeFinder.cs135
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/IInstructionRewriter.cs38
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/IncompatibleInstructionException.cs35
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/InvalidModStateException.cs4
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/ModMetadataStatus.cs4
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Platform.cs12
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/PlatformAssemblyMap.cs55
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/RewriteHelper.cs94
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs53
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldToPropertyRewriter.cs54
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Rewriters/MethodParentRewriter.cs93
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Rewriters/TypeReferenceRewriter.cs157
-rw-r--r--src/StardewModdingAPI/Framework/ModLoading/Rewriters/Wrappers/SpriteBatchWrapper.cs59
18 files changed, 1122 insertions, 7 deletions
diff --git a/src/StardewModdingAPI/Framework/ModLoading/AssemblyLoader.cs b/src/StardewModdingAPI/Framework/ModLoading/AssemblyLoader.cs
index 9c642bef..27a81038 100644
--- a/src/StardewModdingAPI/Framework/ModLoading/AssemblyLoader.cs
+++ b/src/StardewModdingAPI/Framework/ModLoading/AssemblyLoader.cs
@@ -5,7 +5,6 @@ using System.Linq;
using System.Reflection;
using Mono.Cecil;
using Mono.Cecil.Cil;
-using StardewModdingAPI.AssemblyRewriters;
using StardewModdingAPI.Framework.Exceptions;
namespace StardewModdingAPI.Framework.ModLoading
@@ -270,8 +269,7 @@ namespace StardewModdingAPI.Framework.ModLoading
return;
// get assembly
- Assembly assembly;
- if (!this.TypeAssemblies.TryGetValue(type.FullName, out assembly))
+ if (!this.TypeAssemblies.TryGetValue(type.FullName, out Assembly assembly))
return;
// replace scope
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Finders/EventFinder.cs b/src/StardewModdingAPI/Framework/ModLoading/Finders/EventFinder.cs
new file mode 100644
index 00000000..ce234e39
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Finders/EventFinder.cs
@@ -0,0 +1,83 @@
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading.Finders
+{
+ /// <summary>Finds incompatible CIL instructions that reference a given event and throws an <see cref="IncompatibleInstructionException"/>.</summary>
+ internal class EventFinder : IInstructionRewriter
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The full type name for which to find references.</summary>
+ private readonly string FullTypeName;
+
+ /// <summary>The event name for which to find references.</summary>
+ private readonly string EventName;
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase indicating what the instruction finder matches.</summary>
+ public string NounPhrase { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="fullTypeName">The full type name for which to find references.</param>
+ /// <param name="eventName">The event name for which to find references.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public EventFinder(string fullTypeName, string eventName, string nounPhrase = null)
+ {
+ this.FullTypeName = fullTypeName;
+ this.EventName = eventName;
+ this.NounPhrase = nounPhrase ?? $"{fullTypeName}.{eventName} event";
+ }
+
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ return false;
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction))
+ return false;
+
+ throw new IncompatibleInstructionException(this.NounPhrase);
+ }
+
+
+ /*********
+ ** Protected methods
+ *********/
+ /// <summary>Get whether a CIL instruction matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ protected bool IsMatch(Instruction instruction)
+ {
+ MethodReference methodRef = RewriteHelper.AsMethodReference(instruction);
+ return
+ methodRef != null
+ && methodRef.DeclaringType.FullName == this.FullTypeName
+ && (methodRef.Name == "add_" + this.EventName || methodRef.Name == "remove_" + this.EventName);
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Finders/FieldFinder.cs b/src/StardewModdingAPI/Framework/ModLoading/Finders/FieldFinder.cs
new file mode 100644
index 00000000..2feaf2e6
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Finders/FieldFinder.cs
@@ -0,0 +1,83 @@
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading.Finders
+{
+ /// <summary>Finds incompatible CIL instructions that reference a given field and throws an <see cref="IncompatibleInstructionException"/>.</summary>
+ internal class FieldFinder : IInstructionRewriter
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The full type name for which to find references.</summary>
+ private readonly string FullTypeName;
+
+ /// <summary>The field name for which to find references.</summary>
+ private readonly string FieldName;
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase indicating what the instruction finder matches.</summary>
+ public string NounPhrase { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="fullTypeName">The full type name for which to find references.</param>
+ /// <param name="fieldName">The field name for which to find references.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public FieldFinder(string fullTypeName, string fieldName, string nounPhrase = null)
+ {
+ this.FullTypeName = fullTypeName;
+ this.FieldName = fieldName;
+ this.NounPhrase = nounPhrase ?? $"{fullTypeName}.{fieldName} field";
+ }
+
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ return false;
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction))
+ return false;
+
+ throw new IncompatibleInstructionException(this.NounPhrase);
+ }
+
+
+ /*********
+ ** Protected methods
+ *********/
+ /// <summary>Get whether a CIL instruction matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ protected bool IsMatch(Instruction instruction)
+ {
+ FieldReference fieldRef = RewriteHelper.AsFieldReference(instruction);
+ return
+ fieldRef != null
+ && fieldRef.DeclaringType.FullName == this.FullTypeName
+ && fieldRef.Name == this.FieldName;
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Finders/MethodFinder.cs b/src/StardewModdingAPI/Framework/ModLoading/Finders/MethodFinder.cs
new file mode 100644
index 00000000..c3bb36e3
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Finders/MethodFinder.cs
@@ -0,0 +1,83 @@
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading.Finders
+{
+ /// <summary>Finds incompatible CIL instructions that reference a given method and throws an <see cref="IncompatibleInstructionException"/>.</summary>
+ internal class MethodFinder : IInstructionRewriter
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The full type name for which to find references.</summary>
+ private readonly string FullTypeName;
+
+ /// <summary>The method name for which to find references.</summary>
+ private readonly string MethodName;
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase indicating what the instruction finder matches.</summary>
+ public string NounPhrase { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="fullTypeName">The full type name for which to find references.</param>
+ /// <param name="methodName">The method name for which to find references.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public MethodFinder(string fullTypeName, string methodName, string nounPhrase = null)
+ {
+ this.FullTypeName = fullTypeName;
+ this.MethodName = methodName;
+ this.NounPhrase = nounPhrase ?? $"{fullTypeName}.{methodName} method";
+ }
+
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ return false;
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction))
+ return false;
+
+ throw new IncompatibleInstructionException(this.NounPhrase);
+ }
+
+
+ /*********
+ ** Protected methods
+ *********/
+ /// <summary>Get whether a CIL instruction matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ protected bool IsMatch(Instruction instruction)
+ {
+ MethodReference methodRef = RewriteHelper.AsMethodReference(instruction);
+ return
+ methodRef != null
+ && methodRef.DeclaringType.FullName == this.FullTypeName
+ && methodRef.Name == this.MethodName;
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Finders/PropertyFinder.cs b/src/StardewModdingAPI/Framework/ModLoading/Finders/PropertyFinder.cs
new file mode 100644
index 00000000..d1fed84b
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Finders/PropertyFinder.cs
@@ -0,0 +1,83 @@
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading.Finders
+{
+ /// <summary>Finds incompatible CIL instructions that reference a given property and throws an <see cref="IncompatibleInstructionException"/>.</summary>
+ internal class PropertyFinder : IInstructionRewriter
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The full type name for which to find references.</summary>
+ private readonly string FullTypeName;
+
+ /// <summary>The property name for which to find references.</summary>
+ private readonly string PropertyName;
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase indicating what the instruction finder matches.</summary>
+ public string NounPhrase { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="fullTypeName">The full type name for which to find references.</param>
+ /// <param name="propertyName">The property name for which to find references.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public PropertyFinder(string fullTypeName, string propertyName, string nounPhrase = null)
+ {
+ this.FullTypeName = fullTypeName;
+ this.PropertyName = propertyName;
+ this.NounPhrase = nounPhrase ?? $"{fullTypeName}.{propertyName} property";
+ }
+
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ return false;
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction))
+ return false;
+
+ throw new IncompatibleInstructionException(this.NounPhrase);
+ }
+
+
+ /*********
+ ** Protected methods
+ *********/
+ /// <summary>Get whether a CIL instruction matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ protected bool IsMatch(Instruction instruction)
+ {
+ MethodReference methodRef = RewriteHelper.AsMethodReference(instruction);
+ return
+ methodRef != null
+ && methodRef.DeclaringType.FullName == this.FullTypeName
+ && (methodRef.Name == "get_" + this.PropertyName || methodRef.Name == "set_" + this.PropertyName);
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Finders/TypeFinder.cs b/src/StardewModdingAPI/Framework/ModLoading/Finders/TypeFinder.cs
new file mode 100644
index 00000000..e67e6766
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Finders/TypeFinder.cs
@@ -0,0 +1,135 @@
+using System.Linq;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading.Finders
+{
+ /// <summary>Finds incompatible CIL instructions that reference a given type and throws an <see cref="IncompatibleInstructionException"/>.</summary>
+ internal class TypeFinder : IInstructionRewriter
+ {
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>The full type name for which to find references.</summary>
+ private readonly string FullTypeName;
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase indicating what the instruction finder matches.</summary>
+ public string NounPhrase { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="fullTypeName">The full type name to match.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public TypeFinder(string fullTypeName, string nounPhrase = null)
+ {
+ this.FullTypeName = fullTypeName;
+ this.NounPhrase = nounPhrase ?? $"{fullTypeName} type";
+ }
+
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(method))
+ return false;
+
+ throw new IncompatibleInstructionException(this.NounPhrase);
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public virtual bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction))
+ return false;
+
+ throw new IncompatibleInstructionException(this.NounPhrase);
+ }
+
+
+ /*********
+ ** Protected methods
+ *********/
+ /// <summary>Get whether a CIL instruction matches.</summary>
+ /// <param name="method">The method deifnition.</param>
+ protected bool IsMatch(MethodDefinition method)
+ {
+ if (this.IsMatch(method.ReturnType))
+ return true;
+
+ foreach (VariableDefinition variable in method.Body.Variables)
+ {
+ if (this.IsMatch(variable.VariableType))
+ return true;
+ }
+
+ return false;
+ }
+
+ /// <summary>Get whether a CIL instruction matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ protected bool IsMatch(Instruction instruction)
+ {
+ // field reference
+ FieldReference fieldRef = RewriteHelper.AsFieldReference(instruction);
+ if (fieldRef != null)
+ {
+ return
+ this.IsMatch(fieldRef.DeclaringType) // field on target class
+ || this.IsMatch(fieldRef.FieldType); // field value is target class
+ }
+
+ // method reference
+ MethodReference methodRef = RewriteHelper.AsMethodReference(instruction);
+ if (methodRef != null)
+ {
+ return
+ this.IsMatch(methodRef.DeclaringType) // method on target class
+ || this.IsMatch(methodRef.ReturnType) // method returns target class
+ || methodRef.Parameters.Any(p => this.IsMatch(p.ParameterType)); // method parameters
+ }
+
+ return false;
+ }
+
+ /// <summary>Get whether a type reference matches the expected type.</summary>
+ /// <param name="type">The type to check.</param>
+ protected bool IsMatch(TypeReference type)
+ {
+ // root type
+ if (type.FullName == this.FullTypeName)
+ return true;
+
+ // generic arguments
+ if (type is GenericInstanceType genericType)
+ {
+ if (genericType.GenericArguments.Any(this.IsMatch))
+ return true;
+ }
+
+ // generic parameters (e.g. constraints)
+ if (type.GenericParameters.Any(this.IsMatch))
+ return true;
+
+ return false;
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/IInstructionRewriter.cs b/src/StardewModdingAPI/Framework/ModLoading/IInstructionRewriter.cs
new file mode 100644
index 00000000..9b35cdae
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/IInstructionRewriter.cs
@@ -0,0 +1,38 @@
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading
+{
+ /// <summary>Rewrites CIL instructions for compatibility.</summary>
+ internal interface IInstructionRewriter
+ {
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase indicating what the rewriter matches.</summary>
+ string NounPhrase { get; }
+
+
+ /*********
+ ** Methods
+ *********/
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged);
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged);
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/IncompatibleInstructionException.cs b/src/StardewModdingAPI/Framework/ModLoading/IncompatibleInstructionException.cs
new file mode 100644
index 00000000..17ec24b1
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/IncompatibleInstructionException.cs
@@ -0,0 +1,35 @@
+using System;
+
+namespace StardewModdingAPI.Framework.ModLoading
+{
+ /// <summary>An exception raised when an incompatible instruction is found while loading a mod assembly.</summary>
+ internal class IncompatibleInstructionException : Exception
+ {
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase which describes the incompatible instruction that was found.</summary>
+ public string NounPhrase { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="nounPhrase">A brief noun phrase which describes the incompatible instruction that was found.</param>
+ public IncompatibleInstructionException(string nounPhrase)
+ : base($"Found an incompatible CIL instruction ({nounPhrase}).")
+ {
+ this.NounPhrase = nounPhrase;
+ }
+
+ /// <summary>Construct an instance.</summary>
+ /// <param name="nounPhrase">A brief noun phrase which describes the incompatible instruction that was found.</param>
+ /// <param name="message">A message which describes the error.</param>
+ public IncompatibleInstructionException(string nounPhrase, string message)
+ : base(message)
+ {
+ this.NounPhrase = nounPhrase;
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/InvalidModStateException.cs b/src/StardewModdingAPI/Framework/ModLoading/InvalidModStateException.cs
index ab11272a..075e237a 100644
--- a/src/StardewModdingAPI/Framework/ModLoading/InvalidModStateException.cs
+++ b/src/StardewModdingAPI/Framework/ModLoading/InvalidModStateException.cs
@@ -1,9 +1,9 @@
-using System;
+using System;
namespace StardewModdingAPI.Framework.ModLoading
{
/// <summary>An exception which indicates that something went seriously wrong while loading mods, and SMAPI should abort outright.</summary>
- public class InvalidModStateException : Exception
+ internal class InvalidModStateException : Exception
{
/// <summary>Construct an instance.</summary>
/// <param name="message">The error message.</param>
diff --git a/src/StardewModdingAPI/Framework/ModLoading/ModMetadataStatus.cs b/src/StardewModdingAPI/Framework/ModLoading/ModMetadataStatus.cs
index 1b2b0b55..ab65f7b4 100644
--- a/src/StardewModdingAPI/Framework/ModLoading/ModMetadataStatus.cs
+++ b/src/StardewModdingAPI/Framework/ModLoading/ModMetadataStatus.cs
@@ -1,4 +1,4 @@
-namespace StardewModdingAPI.Framework.ModLoading
+namespace StardewModdingAPI.Framework.ModLoading
{
/// <summary>Indicates the status of a mod's metadata resolution.</summary>
internal enum ModMetadataStatus
@@ -9,4 +9,4 @@
/// <summary>The mod cannot be loaded.</summary>
Failed
}
-} \ No newline at end of file
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Platform.cs b/src/StardewModdingAPI/Framework/ModLoading/Platform.cs
new file mode 100644
index 00000000..45e881c4
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Platform.cs
@@ -0,0 +1,12 @@
+namespace StardewModdingAPI.Framework.ModLoading
+{
+ /// <summary>The game's platform version.</summary>
+ internal enum Platform
+ {
+ /// <summary>The Linux/Mac version of the game.</summary>
+ Mono,
+
+ /// <summary>The Windows version of the game.</summary>
+ Windows
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/PlatformAssemblyMap.cs b/src/StardewModdingAPI/Framework/ModLoading/PlatformAssemblyMap.cs
new file mode 100644
index 00000000..463f45e8
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/PlatformAssemblyMap.cs
@@ -0,0 +1,55 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using Mono.Cecil;
+
+namespace StardewModdingAPI.Framework.ModLoading
+{
+ /// <summary>Metadata for mapping assemblies to the current <see cref="Platform"/>.</summary>
+ internal class PlatformAssemblyMap
+ {
+ /*********
+ ** Accessors
+ *********/
+ /****
+ ** Data
+ ****/
+ /// <summary>The target game platform.</summary>
+ public readonly Platform TargetPlatform;
+
+ /// <summary>The short assembly names to remove as assembly reference, and replace with the <see cref="Targets"/>. These should be short names (like "Stardew Valley").</summary>
+ public readonly string[] RemoveNames;
+
+ /****
+ ** Metadata
+ ****/
+ /// <summary>The assemblies to target. Equivalent types should be rewritten to use these assemblies.</summary>
+ public readonly Assembly[] Targets;
+
+ /// <summary>An assembly => reference cache.</summary>
+ public readonly IDictionary<Assembly, AssemblyNameReference> TargetReferences;
+
+ /// <summary>An assembly => module cache.</summary>
+ public readonly IDictionary<Assembly, ModuleDefinition> TargetModules;
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="targetPlatform">The target game platform.</param>
+ /// <param name="removeAssemblyNames">The assembly short names to remove (like <c>Stardew Valley</c>).</param>
+ /// <param name="targetAssemblies">The assemblies to target.</param>
+ public PlatformAssemblyMap(Platform targetPlatform, string[] removeAssemblyNames, Assembly[] targetAssemblies)
+ {
+ // save data
+ this.TargetPlatform = targetPlatform;
+ this.RemoveNames = removeAssemblyNames;
+
+ // cache assembly metadata
+ this.Targets = targetAssemblies;
+ this.TargetReferences = this.Targets.ToDictionary(assembly => assembly, assembly => AssemblyNameReference.Parse(assembly.FullName));
+ this.TargetModules = this.Targets.ToDictionary(assembly => assembly, assembly => ModuleDefinition.ReadModule(assembly.Modules.Single().FullyQualifiedName));
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/RewriteHelper.cs b/src/StardewModdingAPI/Framework/ModLoading/RewriteHelper.cs
new file mode 100644
index 00000000..56a60a72
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/RewriteHelper.cs
@@ -0,0 +1,94 @@
+using System;
+using System.Linq;
+using System.Reflection;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading
+{
+ /// <summary>Provides helper methods for field rewriters.</summary>
+ internal static class RewriteHelper
+ {
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Get the field reference from an instruction if it matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ public static FieldReference AsFieldReference(Instruction instruction)
+ {
+ return instruction.OpCode == OpCodes.Ldfld || instruction.OpCode == OpCodes.Ldsfld || instruction.OpCode == OpCodes.Stfld || instruction.OpCode == OpCodes.Stsfld
+ ? (FieldReference)instruction.Operand
+ : null;
+ }
+
+ /// <summary>Get the method reference from an instruction if it matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ public static MethodReference AsMethodReference(Instruction instruction)
+ {
+ return instruction.OpCode == OpCodes.Call || instruction.OpCode == OpCodes.Callvirt
+ ? (MethodReference)instruction.Operand
+ : null;
+ }
+
+ /// <summary>Get whether a type matches a type reference.</summary>
+ /// <param name="type">The defined type.</param>
+ /// <param name="reference">The type reference.</param>
+ public static bool IsSameType(Type type, TypeReference reference)
+ {
+ // same namespace & name
+ if (type.Namespace != reference.Namespace || type.Name != reference.Name)
+ return false;
+
+ // same generic parameters
+ if (type.IsGenericType)
+ {
+ if (!reference.IsGenericInstance)
+ return false;
+
+ Type[] defGenerics = type.GetGenericArguments();
+ TypeReference[] refGenerics = ((GenericInstanceType)reference).GenericArguments.ToArray();
+ if (defGenerics.Length != refGenerics.Length)
+ return false;
+ for (int i = 0; i < defGenerics.Length; i++)
+ {
+ if (!RewriteHelper.IsSameType(defGenerics[i], refGenerics[i]))
+ return false;
+ }
+ }
+
+ return true;
+ }
+
+ /// <summary>Get whether a method definition matches the signature expected by a method reference.</summary>
+ /// <param name="definition">The method definition.</param>
+ /// <param name="reference">The method reference.</param>
+ public static bool HasMatchingSignature(MethodInfo definition, MethodReference reference)
+ {
+ // same name
+ if (definition.Name != reference.Name)
+ return false;
+
+ // same arguments
+ ParameterInfo[] definitionParameters = definition.GetParameters();
+ ParameterDefinition[] referenceParameters = reference.Parameters.ToArray();
+ if (referenceParameters.Length != definitionParameters.Length)
+ return false;
+ for (int i = 0; i < referenceParameters.Length; i++)
+ {
+ if (!RewriteHelper.IsSameType(definitionParameters[i].ParameterType, referenceParameters[i].ParameterType))
+ return false;
+ }
+ return true;
+ }
+
+ /// <summary>Get whether a type has a method whose signature matches the one expected by a method reference.</summary>
+ /// <param name="type">The type to check.</param>
+ /// <param name="reference">The method reference.</param>
+ public static bool HasMatchingSignature(Type type, MethodReference reference)
+ {
+ return type
+ .GetMethods(BindingFlags.Instance | BindingFlags.DeclaredOnly | BindingFlags.Public)
+ .Any(method => RewriteHelper.HasMatchingSignature(method, reference));
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs
new file mode 100644
index 00000000..7b838f13
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldReplaceRewriter.cs
@@ -0,0 +1,53 @@
+using System;
+using System.Reflection;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+using StardewModdingAPI.Framework.ModLoading.Finders;
+
+namespace StardewModdingAPI.Framework.ModLoading.Rewriters
+{
+ /// <summary>Rewrites references to one field with another.</summary>
+ internal class FieldReplaceRewriter : FieldFinder
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The new field to reference.</summary>
+ private readonly FieldInfo ToField;
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="type">The type whose field to which references should be rewritten.</param>
+ /// <param name="fromFieldName">The field name to rewrite.</param>
+ /// <param name="toFieldName">The new field name to reference.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public FieldReplaceRewriter(Type type, string fromFieldName, string toFieldName, string nounPhrase = null)
+ : base(type.FullName, fromFieldName, nounPhrase)
+ {
+ this.ToField = type.GetField(toFieldName);
+ if (this.ToField == null)
+ throw new InvalidOperationException($"The {type.FullName} class doesn't have a {toFieldName} field.");
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public override bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction))
+ return false;
+
+ FieldReference newRef = module.Import(this.ToField);
+ cil.Replace(instruction, cil.Create(instruction.OpCode, newRef));
+ return true;
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldToPropertyRewriter.cs b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldToPropertyRewriter.cs
new file mode 100644
index 00000000..8ef14103
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/FieldToPropertyRewriter.cs
@@ -0,0 +1,54 @@
+using System;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+using StardewModdingAPI.Framework.ModLoading.Finders;
+
+namespace StardewModdingAPI.Framework.ModLoading.Rewriters
+{
+ /// <summary>Rewrites field references into property references.</summary>
+ internal class FieldToPropertyRewriter : FieldFinder
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The type whose field to which references should be rewritten.</summary>
+ private readonly Type Type;
+
+ /// <summary>The field name to rewrite.</summary>
+ private readonly string FieldName;
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="type">The type whose field to which references should be rewritten.</param>
+ /// <param name="fieldName">The field name to rewrite.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public FieldToPropertyRewriter(Type type, string fieldName, string nounPhrase = null)
+ : base(type.FullName, fieldName, nounPhrase)
+ {
+ this.Type = type;
+ this.FieldName = fieldName;
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public override bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction))
+ return false;
+
+ string methodPrefix = instruction.OpCode == OpCodes.Ldsfld || instruction.OpCode == OpCodes.Ldfld ? "get" : "set";
+ MethodReference propertyRef = module.Import(this.Type.GetMethod($"{methodPrefix}_{this.FieldName}"));
+ cil.Replace(instruction, cil.Create(OpCodes.Call, propertyRef));
+ return true;
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Rewriters/MethodParentRewriter.cs b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/MethodParentRewriter.cs
new file mode 100644
index 00000000..1b95b83b
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/MethodParentRewriter.cs
@@ -0,0 +1,93 @@
+using System;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+
+namespace StardewModdingAPI.Framework.ModLoading.Rewriters
+{
+ /// <summary>Rewrites method references from one parent type to another if the signatures match.</summary>
+ internal class MethodParentRewriter : IInstructionRewriter
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The type whose methods to remap.</summary>
+ private readonly Type FromType;
+
+ /// <summary>The type with methods to map to.</summary>
+ private readonly Type ToType;
+
+ /// <summary>Whether to only rewrite references if loading the assembly on a different platform than it was compiled on.</summary>
+ private readonly bool OnlyIfPlatformChanged;
+
+
+ /*********
+ ** Accessors
+ *********/
+ /// <summary>A brief noun phrase indicating what the instruction finder matches.</summary>
+ public string NounPhrase { get; }
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="fromType">The type whose methods to remap.</param>
+ /// <param name="toType">The type with methods to map to.</param>
+ /// <param name="onlyIfPlatformChanged">Whether to only rewrite references if loading the assembly on a different platform than it was compiled on.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public MethodParentRewriter(Type fromType, Type toType, bool onlyIfPlatformChanged = false, string nounPhrase = null)
+ {
+ this.FromType = fromType;
+ this.ToType = toType;
+ this.NounPhrase = nounPhrase ?? $"{fromType.Name} methods";
+ this.OnlyIfPlatformChanged = onlyIfPlatformChanged;
+ }
+
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ return false;
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction, platformChanged))
+ return false;
+
+ MethodReference methodRef = (MethodReference)instruction.Operand;
+ methodRef.DeclaringType = module.Import(this.ToType);
+ return true;
+ }
+
+
+ /*********
+ ** Protected methods
+ *********/
+ /// <summary>Get whether a CIL instruction matches.</summary>
+ /// <param name="instruction">The IL instruction.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ protected bool IsMatch(Instruction instruction, bool platformChanged)
+ {
+ MethodReference methodRef = RewriteHelper.AsMethodReference(instruction);
+ return
+ methodRef != null
+ && (platformChanged || !this.OnlyIfPlatformChanged)
+ && methodRef.DeclaringType.FullName == this.FromType.FullName
+ && RewriteHelper.HasMatchingSignature(this.ToType, methodRef);
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Rewriters/TypeReferenceRewriter.cs b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/TypeReferenceRewriter.cs
new file mode 100644
index 00000000..2c444b64
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/TypeReferenceRewriter.cs
@@ -0,0 +1,157 @@
+using System;
+using Mono.Cecil;
+using Mono.Cecil.Cil;
+using StardewModdingAPI.Framework.ModLoading.Finders;
+
+namespace StardewModdingAPI.Framework.ModLoading.Rewriters
+{
+ /// <summary>Rewrites all references to a type.</summary>
+ internal class TypeReferenceRewriter : TypeFinder
+ {
+ /*********
+ ** Properties
+ *********/
+ /// <summary>The full type name to which to find references.</summary>
+ private readonly string FromTypeName;
+
+ /// <summary>The new type to reference.</summary>
+ private readonly Type ToType;
+
+
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ /// <param name="fromTypeFullName">The full type name to which to find references.</param>
+ /// <param name="toType">The new type to reference.</param>
+ /// <param name="nounPhrase">A brief noun phrase indicating what the instruction finder matches (or <c>null</c> to generate one).</param>
+ public TypeReferenceRewriter(string fromTypeFullName, Type toType, string nounPhrase = null)
+ : base(fromTypeFullName, nounPhrase)
+ {
+ this.FromTypeName = fromTypeFullName;
+ this.ToType = toType;
+ }
+
+ /// <summary>Rewrite a method definition for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="method">The method definition to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public override bool Rewrite(ModuleDefinition module, MethodDefinition method, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ bool rewritten = false;
+
+ // return type
+ if (this.IsMatch(method.ReturnType))
+ {
+ method.ReturnType = this.RewriteIfNeeded(module, method.ReturnType);
+ rewritten = true;
+ }
+
+ // parameters
+ foreach (ParameterDefinition parameter in method.Parameters)
+ {
+ if (this.IsMatch(parameter.ParameterType))
+ {
+ parameter.ParameterType = this.RewriteIfNeeded(module, parameter.ParameterType);
+ rewritten = true;
+ }
+ }
+
+ // generic parameters
+ for (int i = 0; i < method.GenericParameters.Count; i++)
+ {
+ var parameter = method.GenericParameters[i];
+ if (this.IsMatch(parameter))
+ {
+ TypeReference newType = this.RewriteIfNeeded(module, parameter);
+ if (newType != parameter)
+ method.GenericParameters[i] = new GenericParameter(parameter.Name, newType);
+ rewritten = true;
+ }
+ }
+
+ // local variables
+ foreach (VariableDefinition variable in method.Body.Variables)
+ {
+ if (this.IsMatch(variable.VariableType))
+ {
+ variable.VariableType = this.RewriteIfNeeded(module, variable.VariableType);
+ rewritten = true;
+ }
+ }
+
+ return rewritten;
+ }
+
+ /// <summary>Rewrite a CIL instruction for compatibility.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="cil">The CIL rewriter.</param>
+ /// <param name="instruction">The instruction to rewrite.</param>
+ /// <param name="assemblyMap">Metadata for mapping assemblies to the current platform.</param>
+ /// <param name="platformChanged">Whether the mod was compiled on a different platform.</param>
+ /// <returns>Returns whether the instruction was rewritten.</returns>
+ /// <exception cref="IncompatibleInstructionException">The CIL instruction is not compatible, and can't be rewritten.</exception>
+ public override bool Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, PlatformAssemblyMap assemblyMap, bool platformChanged)
+ {
+ if (!this.IsMatch(instruction) && !instruction.ToString().Contains(this.FromTypeName))
+ return false;
+
+ // field reference
+ FieldReference fieldRef = RewriteHelper.AsFieldReference(instruction);
+ if (fieldRef != null)
+ {
+ fieldRef.DeclaringType = this.RewriteIfNeeded(module, fieldRef.DeclaringType);
+ fieldRef.FieldType = this.RewriteIfNeeded(module, fieldRef.FieldType);
+ }
+
+ // method reference
+ MethodReference methodRef = RewriteHelper.AsMethodReference(instruction);
+ if (methodRef != null)
+ {
+ methodRef.DeclaringType = this.RewriteIfNeeded(module, methodRef.DeclaringType);
+ methodRef.ReturnType = this.RewriteIfNeeded(module, methodRef.ReturnType);
+ foreach (var parameter in methodRef.Parameters)
+ parameter.ParameterType = this.RewriteIfNeeded(module, parameter.ParameterType);
+ }
+
+ // type reference
+ if (instruction.Operand is TypeReference typeRef)
+ {
+ TypeReference newRef = this.RewriteIfNeeded(module, typeRef);
+ if (typeRef != newRef)
+ cil.Replace(instruction, cil.Create(instruction.OpCode, newRef));
+ }
+
+ return true;
+ }
+
+ /*********
+ ** Private methods
+ *********/
+ /// <summary>Get the adjusted type reference if it matches, else the same value.</summary>
+ /// <param name="module">The module being rewritten.</param>
+ /// <param name="type">The type to replace if it matches.</param>
+ private TypeReference RewriteIfNeeded(ModuleDefinition module, TypeReference type)
+ {
+ // root type
+ if (type.FullName == this.FromTypeName)
+ return module.Import(this.ToType);
+
+ // generic arguments
+ if (type is GenericInstanceType genericType)
+ {
+ for (int i = 0; i < genericType.GenericArguments.Count; i++)
+ genericType.GenericArguments[i] = this.RewriteIfNeeded(module, genericType.GenericArguments[i]);
+ }
+
+ // generic parameters (e.g. constraints)
+ for (int i = 0; i < type.GenericParameters.Count; i++)
+ type.GenericParameters[i] = new GenericParameter(this.RewriteIfNeeded(module, type.GenericParameters[i]));
+
+ return type;
+ }
+ }
+}
diff --git a/src/StardewModdingAPI/Framework/ModLoading/Rewriters/Wrappers/SpriteBatchWrapper.cs b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/Wrappers/SpriteBatchWrapper.cs
new file mode 100644
index 00000000..7a631f69
--- /dev/null
+++ b/src/StardewModdingAPI/Framework/ModLoading/Rewriters/Wrappers/SpriteBatchWrapper.cs
@@ -0,0 +1,59 @@
+using System.Diagnostics.CodeAnalysis;
+using Microsoft.Xna.Framework;
+using Microsoft.Xna.Framework.Graphics;
+
+namespace StardewModdingAPI.Framework.ModLoading.Rewriters.Wrappers
+{
+ /// <summary>Wraps <see cref="SpriteBatch"/> methods that are incompatible when converting compiled code between MonoGame and XNA.</summary>
+ internal class SpriteBatchWrapper : SpriteBatch
+ {
+ /*********
+ ** Public methods
+ *********/
+ /// <summary>Construct an instance.</summary>
+ public SpriteBatchWrapper(GraphicsDevice graphicsDevice) : base(graphicsDevice) { }
+
+
+ /****
+ ** MonoGame signatures
+ ****/
+ [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Linux/Mac.")]
+ public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState, Effect effect, Matrix? matrix)
+ {
+ base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState, effect, matrix ?? Matrix.Identity);
+ }
+
+ /****
+ ** XNA signatures
+ ****/
+ [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+ public new void Begin()
+ {
+ base.Begin();
+ }
+
+ [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+ public new void Begin(SpriteSortMode sortMode, BlendState blendState)
+ {
+ base.Begin(sortMode, blendState);
+ }
+
+ [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+ public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState)
+ {
+ base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState);
+ }
+
+ [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+ public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState, Effect effect)
+ {
+ base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState, effect);
+ }
+
+ [SuppressMessage("ReSharper", "CS0109", Justification = "The 'new' modifier applies when compiled on Windows.")]
+ public new void Begin(SpriteSortMode sortMode, BlendState blendState, SamplerState samplerState, DepthStencilState depthStencilState, RasterizerState rasterizerState, Effect effect, Matrix transformMatrix)
+ {
+ base.Begin(sortMode, blendState, samplerState, depthStencilState, rasterizerState, effect, transformMatrix);
+ }
+ }
+}