From e09776b4c822c02f8e61e352b0076a0bc922e2b9 Mon Sep 17 00:00:00 2001
From: LukeFZ <17146677+LukeFZ@users.noreply.github.com>
Date: Sun, 14 Dec 2025 08:32:32 +0100
Subject: [PATCH] fix reading interface and generic parameter constraint
 typeindices on v39

---
 Il2CppInspector.Common/IL2CPP/Il2CppInspector.cs | 4 ++--
 Il2CppInspector.Common/IL2CPP/Metadata.cs        | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/Il2CppInspector.Common/IL2CPP/Il2CppInspector.cs b/Il2CppInspector.Common/IL2CPP/Il2CppInspector.cs
index c0edece..5f8a5ad 100644
--- a/Il2CppInspector.Common/IL2CPP/Il2CppInspector.cs
+++ b/Il2CppInspector.Common/IL2CPP/Il2CppInspector.cs
@@ -53,11 +53,11 @@ namespace Il2CppInspector
         public ImmutableArray<Il2CppEventDefinition> Events => Metadata.Events;
         public ImmutableArray<Il2CppGenericContainer> GenericContainers => Metadata.GenericContainers;
         public ImmutableArray<Il2CppGenericParameter> GenericParameters => Metadata.GenericParameters;
-        public ImmutableArray<int> GenericConstraintIndices => Metadata.GenericConstraintIndices;
+        public ImmutableArray<TypeIndex> GenericConstraintIndices => Metadata.GenericConstraintIndices;
         public ImmutableArray<Il2CppCustomAttributeTypeRange> AttributeTypeRanges => Metadata.AttributeTypeRanges;
         public ImmutableArray<Il2CppCustomAttributeDataRange> AttributeDataRanges => Metadata.AttributeDataRanges;
         public ImmutableArray<Il2CppInterfaceOffsetPair> InterfaceOffsets => Metadata.InterfaceOffsets;
-        public ImmutableArray<int> InterfaceUsageIndices => Metadata.InterfaceUsageIndices;
+        public ImmutableArray<TypeIndex> InterfaceUsageIndices => Metadata.InterfaceUsageIndices;
         public ImmutableArray<int> NestedTypeIndices => Metadata.NestedTypeIndices;
         public ImmutableArray<int> AttributeTypeIndices => Metadata.AttributeTypeIndices;
         public ImmutableArray<uint> VTableMethodIndices => Metadata.VTableMethodIndices;
diff --git a/Il2CppInspector.Common/IL2CPP/Metadata.cs b/Il2CppInspector.Common/IL2CPP/Metadata.cs
index 90dfc0c..8cb42a3 100644
--- a/Il2CppInspector.Common/IL2CPP/Metadata.cs
+++ b/Il2CppInspector.Common/IL2CPP/Metadata.cs
@@ -36,10 +36,10 @@ namespace Il2CppInspector
         public ImmutableArray<Il2CppMetadataUsagePair> MetadataUsagePairs { get; set; }
         public ImmutableArray<Il2CppFieldRef> FieldRefs { get; set; }
 
-        public ImmutableArray<int> InterfaceUsageIndices { get; set; }
+        public ImmutableArray<TypeIndex> InterfaceUsageIndices { get; set; }
         public ImmutableArray<int> NestedTypeIndices { get; set; }
         public ImmutableArray<int> AttributeTypeIndices { get; set; }
-        public ImmutableArray<int> GenericConstraintIndices { get; set; }
+        public ImmutableArray<TypeIndex> GenericConstraintIndices { get; set; }
         public ImmutableArray<uint> VTableMethodIndices { get; set; }
         public string[] StringLiterals { get; set; }
 
@@ -205,11 +205,11 @@ namespace Il2CppInspector
             FieldDefaultValues = ReadMetadataArray<Il2CppFieldDefaultValue>(Header.FieldDefaultValuesOffset, Header.FieldDefaultValuesSize, Header.FieldDefaultValues);
             Properties = ReadMetadataArray<Il2CppPropertyDefinition>(Header.PropertiesOffset, Header.PropertiesSize, Header.Properties);
             Events = ReadMetadataArray<Il2CppEventDefinition>(Header.EventsOffset, Header.EventsSize, Header.Events);
-            InterfaceUsageIndices = ReadMetadataPrimitiveArray<int>(Header.InterfacesOffset, Header.InterfacesSize, Header.Interfaces);
+            InterfaceUsageIndices = ReadMetadataArray<TypeIndex>(Header.InterfacesOffset, Header.InterfacesSize, Header.Interfaces);
             NestedTypeIndices = ReadMetadataPrimitiveArray<int>(Header.NestedTypesOffset, Header.NestedTypesSize, Header.NestedTypes);
             GenericContainers = ReadMetadataArray<Il2CppGenericContainer>(Header.GenericContainersOffset, Header.GenericContainersSize, Header.GenericContainers);
             GenericParameters = ReadMetadataArray<Il2CppGenericParameter>(Header.GenericParametersOffset, Header.GenericParametersSize, Header.GenericParameters);
-            GenericConstraintIndices = ReadMetadataPrimitiveArray<int>(Header.GenericParameterConstraintsOffset, Header.GenericParameterConstraintsSize, Header.GenericParameterConstraints);
+            GenericConstraintIndices = ReadMetadataArray<TypeIndex>(Header.GenericParameterConstraintsOffset, Header.GenericParameterConstraintsSize, Header.GenericParameterConstraints);
             InterfaceOffsets = ReadMetadataArray<Il2CppInterfaceOffsetPair>(Header.InterfaceOffsetsOffset, Header.InterfaceOffsetsSize, Header.InterfaceOffsets);
             VTableMethodIndices = ReadMetadataPrimitiveArray<uint>(Header.VTableMethodsOffset, Header.VTableMethodsSize, Header.VtableMethods);