From 4d48bdfe7c3806ec1995cd499ca9382ace2d8a53 Mon Sep 17 00:00:00 2001 From: Jesse Plamondon-Willard Date: Sat, 25 Mar 2017 13:50:01 -0400 Subject: drop 'generic' prefix for rewriters since they're all generic now --- .../Rewriters/FieldToPropertyRewriter.cs | 70 ++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 src/StardewModdingAPI.AssemblyRewriters/Rewriters/FieldToPropertyRewriter.cs (limited to 'src/StardewModdingAPI.AssemblyRewriters/Rewriters/FieldToPropertyRewriter.cs') diff --git a/src/StardewModdingAPI.AssemblyRewriters/Rewriters/FieldToPropertyRewriter.cs b/src/StardewModdingAPI.AssemblyRewriters/Rewriters/FieldToPropertyRewriter.cs new file mode 100644 index 00000000..caf0a16c --- /dev/null +++ b/src/StardewModdingAPI.AssemblyRewriters/Rewriters/FieldToPropertyRewriter.cs @@ -0,0 +1,70 @@ +using System; +using Mono.Cecil; +using Mono.Cecil.Cil; +using StardewModdingAPI.AssemblyRewriters.Framework; + +namespace StardewModdingAPI.AssemblyRewriters.Rewriters +{ + /// Rewrites field references into property references. + public class FieldToPropertyRewriter : BaseFieldRewriter + { + /********* + ** Properties + *********/ + /// The type whose field to which references should be rewritten. + private readonly Type Type; + + /// The field name to rewrite. + private readonly string FieldName; + + + /********* + ** Accessors + *********/ + /// A brief noun phrase indicating what the instruction finder matches. + public override string NounPhrase { get; } + + + /********* + ** Public methods + *********/ + /// Construct an instance. + /// The type whose field to which references should be rewritten. + /// The field name to rewrite. + /// A brief noun phrase indicating what the instruction finder matches (or null to generate one). + public FieldToPropertyRewriter(Type type, string fieldName, string nounPhrase = null) + { + this.Type = type; + this.FieldName = fieldName; + this.NounPhrase = nounPhrase ?? $"{type.Name}.{fieldName} field"; + } + + + /********* + ** Protected methods + *********/ + /// Get whether a field reference should be rewritten. + /// The IL instruction. + /// The field reference. + /// Whether the mod was compiled on a different platform. + protected override bool IsMatch(Instruction instruction, FieldReference fieldRef, bool platformChanged) + { + return + fieldRef.DeclaringType.FullName == this.Type.FullName + && fieldRef.Name == this.FieldName; + } + + /// Rewrite a method for compatibility. + /// The module being rewritten. + /// The CIL rewriter. + /// The instruction which references the field. + /// The field reference invoked by the . + /// Metadata for mapping assemblies to the current platform. + protected override void Rewrite(ModuleDefinition module, ILProcessor cil, Instruction instruction, FieldReference fieldRef, PlatformAssemblyMap assemblyMap) + { + string methodPrefix = instruction.OpCode == OpCodes.Ldsfld || instruction.OpCode == OpCodes.Ldfld ? "get" : "set"; + MethodReference propertyRef = module.Import(this.Type.GetMethod($"{methodPrefix}_{this.FieldName}")); + cil.Replace(instruction, cil.Create(OpCodes.Call, propertyRef)); + } + } +} -- cgit