Support reading and writing custom arguments for v29
This commit is contained in:
LukeFZ
@@ -1,158 +1,158 @@
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/*
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Copyright 2017-2021 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
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All rights reserved.
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*/
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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 System.Reflection;
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using System.Text;
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namespace Il2CppInspector.Reflection {
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public class FieldInfo : MemberInfo
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{
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// IL2CPP-specific data
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public Il2CppFieldDefinition Definition { get; }
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public int Index { get; }
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// Root definition: the field with Definition != null
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protected readonly FieldInfo rootDefinition;
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// Offsets for reference types start at 0x8 or 0x10 due to Il2CppObject "header" containing 2 pointers
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// Value types don't have this header but the offsets are still stored as starting at 0x8 or 0x10, so we have to subtract this
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// Open generic types have offsets that aren't known until runtime
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private readonly long rawOffset;
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public long Offset => DeclaringType.ContainsGenericParameters? 0 :
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rawOffset - (DeclaringType.IsValueType && !IsStatic? (Assembly.Model.Package.BinaryImage.Bits / 8) * 2 : 0);
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public bool HasFieldRVA => (Attributes & FieldAttributes.HasFieldRVA) != 0;
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public ulong DefaultValueMetadataAddress { get; }
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// Custom attributes for this member
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public override IEnumerable<CustomAttributeData> CustomAttributes => CustomAttributeData.GetCustomAttributes(rootDefinition);
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public bool HasDefaultValue => (Attributes & FieldAttributes.HasDefault) != 0;
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public object DefaultValue { get; }
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public string GetDefaultValueString(Scope usingScope = null) => HasDefaultValue ? DefaultValue.ToCSharpValue(FieldType, usingScope) : "";
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// Information/flags about the field
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public FieldAttributes Attributes { get; }
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// Type of field
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private readonly TypeRef fieldTypeReference;
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public TypeInfo FieldType => fieldTypeReference.Value;
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// For the Is* definitions below, see:
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// https://docs.microsoft.com/en-us/dotnet/api/system.reflection.fieldinfo.isfamilyandassembly?view=netframework-4.7.1#System_Reflection_FieldInfo_IsFamilyAndAssembly
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// True if the field is declared as internal
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public bool IsAssembly => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Assembly;
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// True if the field is declared as protected
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public bool IsFamily => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Family;
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// True if the field is declared as 'protected private' (always false)
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public bool IsFamilyAndAssembly => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.FamANDAssem;
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// True if the field is declared as protected public
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public bool IsFamilyOrAssembly => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.FamORAssem;
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// True if the field is declared as readonly
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public bool IsInitOnly => (Attributes & FieldAttributes.InitOnly) == FieldAttributes.InitOnly;
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// True if the field is const
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public bool IsLiteral => (Attributes & FieldAttributes.Literal) == FieldAttributes.Literal;
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// True if the field has the NonSerialized attribute
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public bool IsNotSerialized => (Attributes & FieldAttributes.NotSerialized) == FieldAttributes.NotSerialized;
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// True if the field is extern
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public bool IsPinvokeImpl => (Attributes & FieldAttributes.PinvokeImpl) == FieldAttributes.PinvokeImpl;
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// True if the field is declared a private
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public bool IsPrivate => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Private;
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// True if the field is declared as public
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public bool IsPublic => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Public;
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// True if the field has a special name
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public bool IsSpecialName => (Attributes & FieldAttributes.SpecialName) == FieldAttributes.SpecialName;
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// True if the field is declared as static
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public bool IsStatic => (Attributes & FieldAttributes.Static) == FieldAttributes.Static;
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// Returns true if using this field requires that the using method is declared as unsafe
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public bool RequiresUnsafeContext => FieldType.RequiresUnsafeContext || GetCustomAttributes("System.Runtime.CompilerServices.FixedBufferAttribute").Any();
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public override MemberTypes MemberType => MemberTypes.Field;
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public FieldInfo(Il2CppInspector pkg, int fieldIndex, TypeInfo declaringType) :
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base(declaringType) {
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Definition = pkg.Fields[fieldIndex];
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MetadataToken = (int) Definition.token;
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Index = fieldIndex;
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Name = pkg.Strings[Definition.nameIndex];
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rawOffset = pkg.FieldOffsets[fieldIndex];
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rootDefinition = this;
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fieldTypeReference = TypeRef.FromReferenceIndex(Assembly.Model, Definition.typeIndex);
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var fieldType = pkg.TypeReferences[Definition.typeIndex];
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// Copy attributes
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Attributes = (FieldAttributes) fieldType.attrs;
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// Default initialization value if present
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if (pkg.FieldDefaultValue.TryGetValue(fieldIndex, out (ulong address, object variant) value)) {
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DefaultValue = value.variant;
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DefaultValueMetadataAddress = value.address;
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}
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}
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public FieldInfo(FieldInfo fieldDef, TypeInfo declaringType) : base(declaringType) {
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if (fieldDef.Definition == null)
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throw new ArgumentException("Argument must be a bare field definition");
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rootDefinition = fieldDef;
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Name = fieldDef.Name;
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Attributes = fieldDef.Attributes;
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fieldTypeReference = TypeRef.FromTypeInfo(fieldDef.FieldType.SubstituteGenericArguments(declaringType.GetGenericArguments()));
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DefaultValue = fieldDef.DefaultValue;
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DefaultValueMetadataAddress = fieldDef.DefaultValueMetadataAddress;
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}
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public string GetAccessModifierString() => this switch {
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{ IsPrivate: true } => "private ",
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{ IsPublic: true } => "public ",
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{ IsFamily: true } => "protected ",
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{ IsAssembly: true } => "internal ",
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{ IsFamilyOrAssembly: true } => "protected internal ",
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{ IsFamilyAndAssembly: true } => "private protected ",
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_ => ""
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};
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public string GetModifierString() {
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var modifiers = new StringBuilder(GetAccessModifierString());
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if (IsLiteral)
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modifiers.Append("const ");
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// All const fields are also static by implication
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else if (IsStatic)
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modifiers.Append("static ");
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if (IsInitOnly)
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modifiers.Append("readonly ");
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if (RequiresUnsafeContext)
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modifiers.Append("unsafe ");
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if (IsPinvokeImpl)
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modifiers.Append("extern ");
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if (GetCustomAttributes("System.Runtime.CompilerServices.FixedBufferAttribute").Any())
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modifiers.Append("fixed ");
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return modifiers.ToString();
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}
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}
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/*
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Copyright 2017-2021 Katy Coe - http://www.djkaty.com - https://github.com/djkaty
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All rights reserved.
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*/
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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 System.Reflection;
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using System.Text;
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namespace Il2CppInspector.Reflection {
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public class FieldInfo : MemberInfo // L-TODO: Add support for [ThreadLocal] fields
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{
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// IL2CPP-specific data
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public Il2CppFieldDefinition Definition { get; }
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public int Index { get; }
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// Root definition: the field with Definition != null
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protected readonly FieldInfo rootDefinition;
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// Offsets for reference types start at 0x8 or 0x10 due to Il2CppObject "header" containing 2 pointers
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// Value types don't have this header but the offsets are still stored as starting at 0x8 or 0x10, so we have to subtract this
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// Open generic types have offsets that aren't known until runtime
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private readonly long rawOffset;
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public long Offset => DeclaringType.ContainsGenericParameters? 0 :
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rawOffset - (DeclaringType.IsValueType && !IsStatic? (Assembly.Model.Package.BinaryImage.Bits / 8) * 2 : 0);
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public bool HasFieldRVA => (Attributes & FieldAttributes.HasFieldRVA) != 0;
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public ulong DefaultValueMetadataAddress { get; }
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// Custom attributes for this member
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public override IEnumerable<CustomAttributeData> CustomAttributes => CustomAttributeData.GetCustomAttributes(rootDefinition);
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public bool HasDefaultValue => (Attributes & FieldAttributes.HasDefault) != 0;
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public object DefaultValue { get; }
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public string GetDefaultValueString(Scope usingScope = null) => HasDefaultValue ? DefaultValue.ToCSharpValue(FieldType, usingScope) : "";
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// Information/flags about the field
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public FieldAttributes Attributes { get; }
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// Type of field
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private readonly TypeRef fieldTypeReference;
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public TypeInfo FieldType => fieldTypeReference.Value;
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// For the Is* definitions below, see:
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// https://docs.microsoft.com/en-us/dotnet/api/system.reflection.fieldinfo.isfamilyandassembly?view=netframework-4.7.1#System_Reflection_FieldInfo_IsFamilyAndAssembly
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// True if the field is declared as internal
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public bool IsAssembly => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Assembly;
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// True if the field is declared as protected
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public bool IsFamily => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Family;
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// True if the field is declared as 'protected private' (always false)
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public bool IsFamilyAndAssembly => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.FamANDAssem;
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// True if the field is declared as protected public
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public bool IsFamilyOrAssembly => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.FamORAssem;
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// True if the field is declared as readonly
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public bool IsInitOnly => (Attributes & FieldAttributes.InitOnly) == FieldAttributes.InitOnly;
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// True if the field is const
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public bool IsLiteral => (Attributes & FieldAttributes.Literal) == FieldAttributes.Literal;
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// True if the field has the NonSerialized attribute
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public bool IsNotSerialized => (Attributes & FieldAttributes.NotSerialized) == FieldAttributes.NotSerialized;
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// True if the field is extern
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public bool IsPinvokeImpl => (Attributes & FieldAttributes.PinvokeImpl) == FieldAttributes.PinvokeImpl;
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// True if the field is declared a private
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public bool IsPrivate => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Private;
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// True if the field is declared as public
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public bool IsPublic => (Attributes & FieldAttributes.FieldAccessMask) == FieldAttributes.Public;
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// True if the field has a special name
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public bool IsSpecialName => (Attributes & FieldAttributes.SpecialName) == FieldAttributes.SpecialName;
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// True if the field is declared as static
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public bool IsStatic => (Attributes & FieldAttributes.Static) == FieldAttributes.Static;
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// Returns true if using this field requires that the using method is declared as unsafe
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public bool RequiresUnsafeContext => FieldType.RequiresUnsafeContext || GetCustomAttributes("System.Runtime.CompilerServices.FixedBufferAttribute").Any();
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public override MemberTypes MemberType => MemberTypes.Field;
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public FieldInfo(Il2CppInspector pkg, int fieldIndex, TypeInfo declaringType) :
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base(declaringType) {
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Definition = pkg.Fields[fieldIndex];
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MetadataToken = (int) Definition.token;
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Index = fieldIndex;
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Name = pkg.Strings[Definition.nameIndex];
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rawOffset = pkg.FieldOffsets[fieldIndex];
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rootDefinition = this;
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fieldTypeReference = TypeRef.FromReferenceIndex(Assembly.Model, Definition.typeIndex);
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var fieldType = pkg.TypeReferences[Definition.typeIndex];
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// Copy attributes
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Attributes = (FieldAttributes) fieldType.attrs;
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// Default initialization value if present
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if (pkg.FieldDefaultValue.TryGetValue(fieldIndex, out (ulong address, object variant) value)) {
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DefaultValue = value.variant;
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DefaultValueMetadataAddress = value.address;
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}
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}
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public FieldInfo(FieldInfo fieldDef, TypeInfo declaringType) : base(declaringType) {
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if (fieldDef.Definition == null)
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throw new ArgumentException("Argument must be a bare field definition");
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rootDefinition = fieldDef;
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Name = fieldDef.Name;
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Attributes = fieldDef.Attributes;
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fieldTypeReference = TypeRef.FromTypeInfo(fieldDef.FieldType.SubstituteGenericArguments(declaringType.GetGenericArguments()));
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DefaultValue = fieldDef.DefaultValue;
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DefaultValueMetadataAddress = fieldDef.DefaultValueMetadataAddress;
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}
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public string GetAccessModifierString() => this switch {
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{ IsPrivate: true } => "private ",
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{ IsPublic: true } => "public ",
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{ IsFamily: true } => "protected ",
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{ IsAssembly: true } => "internal ",
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{ IsFamilyOrAssembly: true } => "protected internal ",
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{ IsFamilyAndAssembly: true } => "private protected ",
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_ => ""
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};
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public string GetModifierString() {
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var modifiers = new StringBuilder(GetAccessModifierString());
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if (IsLiteral)
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modifiers.Append("const ");
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// All const fields are also static by implication
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else if (IsStatic)
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modifiers.Append("static ");
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if (IsInitOnly)
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modifiers.Append("readonly ");
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if (RequiresUnsafeContext)
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modifiers.Append("unsafe ");
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if (IsPinvokeImpl)
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modifiers.Append("extern ");
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if (GetCustomAttributes("System.Runtime.CompilerServices.FixedBufferAttribute").Any())
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modifiers.Append("fixed ");
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return modifiers.ToString();
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}
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}
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}
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