109 lines
3.7 KiB
C#
109 lines
3.7 KiB
C#
using dnlib.DotNet;
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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 UnityEngine;
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namespace HybridCLR.Editor.Meta
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{
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public class GenericMethod
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{
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public MethodDef Method { get; }
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public List<TypeSig> KlassInst { get; }
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public List<TypeSig> MethodInst { get; }
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private readonly int _hashCode;
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public GenericMethod(MethodDef method, List<TypeSig> classInst, List<TypeSig> methodInst)
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{
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Method = method;
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KlassInst = classInst;
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MethodInst = methodInst;
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_hashCode = ComputHashCode();
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}
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public GenericMethod ToGenericShare()
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{
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return new GenericMethod(Method, MetaUtil.ToShareTypeSigs(KlassInst), MetaUtil.ToShareTypeSigs(MethodInst));
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}
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public override bool Equals(object obj)
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{
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GenericMethod o = (GenericMethod)obj;
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return Method == o.Method
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&& EqualityUtil.EqualsTypeSigArray(KlassInst, o.KlassInst)
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&& EqualityUtil.EqualsTypeSigArray(MethodInst, o.MethodInst);
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}
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public override int GetHashCode()
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{
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return _hashCode;
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}
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public override string ToString()
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{
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return $"{Method}|{string.Join(",", (IEnumerable<TypeSig>)KlassInst ?? Array.Empty<TypeSig>())}|{string.Join(",", (IEnumerable<TypeSig>)MethodInst ?? Array.Empty<TypeSig>())}";
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}
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private int ComputHashCode()
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{
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int hash = MethodEqualityComparer.CompareDeclaringTypes.GetHashCode(Method);
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if (KlassInst != null)
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{
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hash = HashUtil.CombineHash(hash, HashUtil.ComputHash(KlassInst));
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}
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if (MethodInst != null)
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{
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hash = HashUtil.CombineHash(hash, HashUtil.ComputHash(MethodInst));
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}
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return hash;
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}
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public MethodSpec ToMethodSpec()
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{
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IMethodDefOrRef mt = KlassInst != null ?
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(IMethodDefOrRef)new MemberRefUser(this.Method.Module, Method.Name, Method.MethodSig, new TypeSpecUser(new GenericInstSig(this.Method.DeclaringType.ToTypeSig().ToClassOrValueTypeSig(), this.KlassInst)))
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: this.Method;
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return new MethodSpecUser(mt, new GenericInstMethodSig(MethodInst));
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}
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public static GenericMethod ResolveMethod(IMethod method, GenericArgumentContext ctx)
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{
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//Debug.Log($"== resolve method:{method}");
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TypeDef typeDef = null;
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List<TypeSig> klassInst = null;
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List<TypeSig> methodInst = null;
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MethodDef methodDef = null;
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var decalringType = method.DeclaringType;
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typeDef = decalringType.ResolveTypeDef();
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if (typeDef == null)
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{
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return null;
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}
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GenericInstSig gis = decalringType.TryGetGenericInstSig();
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if (gis != null)
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{
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klassInst = ctx != null ? gis.GenericArguments.Select(ga => MetaUtil.Inflate(ga, ctx)).ToList() : gis.GenericArguments.ToList();
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}
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methodDef = method.ResolveMethodDef();
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if (methodDef == null)
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{
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Debug.LogWarning($"method:{method} ResolveMethodDef() == null");
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return null;
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}
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if (method is MethodSpec methodSpec)
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{
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methodInst = ctx != null ? methodSpec.GenericInstMethodSig.GenericArguments.Select(ga => MetaUtil.Inflate(ga, ctx)).ToList()
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: methodSpec.GenericInstMethodSig.GenericArguments.ToList();
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}
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return new GenericMethod(methodDef, klassInst, methodInst);
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}
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}
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}
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