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Refactor MethodBase / MethodInfo

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This commit is contained in:
Katy Coe
2019-10-28 03:06:32 +01:00
parent 4e0f11bde4
commit 2e256909a6
4 changed files with 83 additions and 83 deletions
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73
Il2CppInspector/Reflection/MethodBase.cs
View File

@@ -13,6 +13,11 @@ namespace Il2CppInspector.Reflection
{
public abstract class MethodBase : MemberInfo
{
// IL2CPP-specific data
public Il2CppMethodDefinition Definition { get; }
public int Index { get; }
public ulong VirtualAddress { get; }
// Information/flags about the method
public MethodAttributes Attributes { get; protected set; }
@@ -41,7 +46,73 @@ namespace Il2CppInspector.Reflection
// TODO: GetMethodBody()
protected MethodBase(TypeInfo declaringType) : base(declaringType) { }
protected MethodBase(Il2CppInspector pkg, int methodIndex, TypeInfo declaringType) : base(declaringType) {
Definition = pkg.Methods[methodIndex];
Index = methodIndex;
Name = pkg.Strings[Definition.nameIndex];
// Find method pointer
if (Definition.methodIndex >= 0) {
// Global method pointer array
if (pkg.Version <= 24.1) {
VirtualAddress = pkg.GlobalMethodPointers[Definition.methodIndex];
}
// Per-module method pointer array uses the bottom 24 bits of the method's metadata token
// Derived from il2cpp::vm::MetadataCache::GetMethodPointer
else {
var method = (Definition.token & 0xffffff);
if (method != 0) {
// In the event of an exception, the method pointer is not set in the file
// This probably means it has been optimized away by the compiler, or is an unused generic method
try {
pkg.BinaryImage.Position = pkg.BinaryImage.MapVATR(Assembly.Module.methodPointers + (ulong)((method - 1) * (pkg.BinaryImage.Bits / 8)));
VirtualAddress = (ulong)pkg.BinaryImage.ReadWord();
}
catch (Exception) { }
}
}
// Remove ARM Thumb marker LSB if necessary
VirtualAddress &= 0xffff_ffff_ffff_fffe;
}
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_PRIVATE)
Attributes |= MethodAttributes.Private;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_PUBLIC)
Attributes |= MethodAttributes.Public;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_FAM_AND_ASSEM)
Attributes |= MethodAttributes.FamANDAssem;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_ASSEM)
Attributes |= MethodAttributes.Assembly;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_FAMILY)
Attributes |= MethodAttributes.Family;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_FAM_OR_ASSEM)
Attributes |= MethodAttributes.FamORAssem;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_VIRTUAL) != 0)
Attributes |= MethodAttributes.Virtual;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_ABSTRACT) != 0)
Attributes |= MethodAttributes.Abstract;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_STATIC) != 0)
Attributes |= MethodAttributes.Static;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_FINAL) != 0)
Attributes |= MethodAttributes.Final;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_HIDE_BY_SIG) != 0)
Attributes |= MethodAttributes.HideBySig;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_VTABLE_LAYOUT_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_NEW_SLOT)
Attributes |= MethodAttributes.NewSlot;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_PINVOKE_IMPL) != 0)
Attributes |= MethodAttributes.PinvokeImpl;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_SPECIAL_NAME) != 0)
Attributes |= MethodAttributes.SpecialName;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_UNMANAGED_EXPORT) != 0)
Attributes |= MethodAttributes.UnmanagedExport;
// Add arguments
for (var p = Definition.parameterStart; p < Definition.parameterStart + Definition.parameterCount; p++)
DeclaredParameters.Add(new ParameterInfo(pkg, p, this));
}
public string GetModifierString() {
// Interface methods and properties have no visible modifiers (they are always declared 'public abstract')

77
Il2CppInspector/Reflection/MethodInfo.cs
View File

@@ -4,7 +4,6 @@
All rights reserved.
*/
using System;
using System.Linq;
using System.Reflection;
@@ -12,12 +11,6 @@ namespace Il2CppInspector.Reflection
{
public class MethodInfo : MethodBase
{
// IL2CPP-specific data
public Il2CppMethodDefinition Definition { get; }
public int Index { get; }
public ulong VirtualAddress { get; }
public bool HasBody { get; }
public override MemberTypes MemberType => MemberTypes.Method;
// Info about the return parameter
@@ -29,78 +22,10 @@ namespace Il2CppInspector.Reflection
// TODO: ReturnTypeCustomAttributes
public MethodInfo(Il2CppInspector pkg, int methodIndex, TypeInfo declaringType) :
base(declaringType) {
Definition = pkg.Methods[methodIndex];
Index = methodIndex;
Name = pkg.Strings[Definition.nameIndex];
// Find method pointer
if (Definition.methodIndex >= 0) {
// Global method pointer array
if (pkg.Version <= 24.1) {
VirtualAddress = pkg.GlobalMethodPointers[Definition.methodIndex];
}
// Per-module method pointer array uses the bottom 24 bits of the method's metadata token
// Derived from il2cpp::vm::MetadataCache::GetMethodPointer
else {
var method = (Definition.token & 0xffffff);
if (method != 0) {
// In the event of an exception, the method pointer is not set in the file
// This probably means it has been optimized away by the compiler, or is an unused generic method
try {
pkg.BinaryImage.Position = pkg.BinaryImage.MapVATR(Assembly.Module.methodPointers + (ulong) ((method - 1) * (pkg.BinaryImage.Bits / 8)));
VirtualAddress = (ulong) pkg.BinaryImage.ReadWord();
} catch (Exception) { }
}
}
// Remove ARM Thumb marker LSB if necessary
VirtualAddress &= 0xffff_ffff_ffff_fffe;
HasBody = true;
}
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_PRIVATE)
Attributes |= MethodAttributes.Private;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_PUBLIC)
Attributes |= MethodAttributes.Public;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_FAM_AND_ASSEM)
Attributes |= MethodAttributes.FamANDAssem;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_ASSEM)
Attributes |= MethodAttributes.Assembly;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_FAMILY)
Attributes |= MethodAttributes.Family;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_MEMBER_ACCESS_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_FAM_OR_ASSEM)
Attributes |= MethodAttributes.FamORAssem;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_VIRTUAL) != 0)
Attributes |= MethodAttributes.Virtual;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_ABSTRACT) != 0)
Attributes |= MethodAttributes.Abstract;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_STATIC) != 0)
Attributes |= MethodAttributes.Static;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_FINAL) != 0)
Attributes |= MethodAttributes.Final;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_HIDE_BY_SIG) != 0)
Attributes |= MethodAttributes.HideBySig;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_VTABLE_LAYOUT_MASK) == Il2CppConstants.METHOD_ATTRIBUTE_NEW_SLOT)
Attributes |= MethodAttributes.NewSlot;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_PINVOKE_IMPL) != 0)
Attributes |= MethodAttributes.PinvokeImpl;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_SPECIAL_NAME) != 0)
Attributes |= MethodAttributes.SpecialName;
if ((Definition.flags & Il2CppConstants.METHOD_ATTRIBUTE_UNMANAGED_EXPORT) != 0)
Attributes |= MethodAttributes.UnmanagedExport;
public MethodInfo(Il2CppInspector pkg, int methodIndex, TypeInfo declaringType) : base(pkg, methodIndex, declaringType) {
// Add return parameter
returnType = pkg.TypeUsages[Definition.returnType];
ReturnParameter = new ParameterInfo(pkg, -1, this);
// Add arguments
for (var p = Definition.parameterStart; p < Definition.parameterStart + Definition.parameterCount; p++)
DeclaredParameters.Add(new ParameterInfo(pkg, p, this));
}
public override string ToString() => ReturnType.Name + " " + Name + "(" + string.Join(", ", DeclaredParameters.Select(x => x.ParameterType.Name)) + ")";

2
Il2CppInspector/Reflection/ParameterInfo.cs
View File

@@ -41,7 +41,7 @@ namespace Il2CppInspector.Reflection
public int Position { get; private set; }
// Create a parameter. Specify paramIndex == -1 for a return type parameter
public ParameterInfo(Il2CppInspector pkg, int paramIndex, MethodInfo declaringMethod) {
public ParameterInfo(Il2CppInspector pkg, int paramIndex, MethodBase declaringMethod) {
Member = declaringMethod;
if (paramIndex == -1) {

14
Il2CppInspector/Reflection/ReflectionClasses.cs
View File

@@ -1,5 +1,5 @@
/*
Copyright 2017 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com
Copyright 2017-2019 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com
All rights reserved.
*/
@@ -10,11 +10,15 @@ namespace Il2CppInspector.Reflection
{
public class ConstructorInfo : MethodBase
{
// TODO
public override MemberTypes MemberType => MemberTypes.Constructor | MemberTypes.Method;
// IL names of constructor and static constructor
public static readonly string ConstructorName = ".ctor";
public ConstructorInfo(Il2CppInspector pkg, int methodIndex, TypeInfo declaringType) :
base(declaringType) { }
public static readonly string TypeConstructorName = ".cctor";
// TODO
public override MemberTypes MemberType => MemberTypes.Constructor;
public ConstructorInfo(Il2CppInspector pkg, int methodIndex, TypeInfo declaringType) : base(pkg, methodIndex, declaringType) { }
}
public class CustomAttributeData