5d57b76735
This reduces code duplication between metadata usage index decoding and vtable method index decoding.
50 lines
1.8 KiB
C#
50 lines
1.8 KiB
C#
/*
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Copyright (c) 2019-2020 Carter Bush - https://github.com/carterbush
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Copyright (c) 2020 Katy Coe - http://www.hearthcode.org - http://www.djkaty.com
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All rights reserved.
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*/
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namespace Il2CppInspector
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{
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public enum MetadataUsageType
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{
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TypeInfo = 1,
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Type = 2,
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MethodDef = 3,
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FieldInfo = 4,
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StringLiteral = 5,
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MethodRef = 6,
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}
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public class MetadataUsage
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{
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public MetadataUsageType Type { get; }
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public int SourceIndex { get; }
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public ulong VirtualAddress { get; private set; }
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public MetadataUsage(MetadataUsageType type, int sourceIndex) {
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Type = type;
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SourceIndex = sourceIndex;
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}
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public static MetadataUsage FromEncodedIndex(Il2CppInspector package, uint encodedIndex) {
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uint index;
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MetadataUsageType usageType;
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if (package.Version < 19) {
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/* These encoded indices appear only in vtables, and are decoded by IsGenericMethodIndex/GetDecodedMethodIndex */
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var isGeneric = encodedIndex & 0x80000000;
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index = package.Binary.VTableMethodReferences[encodedIndex & 0x7FFFFFFF];
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usageType = (isGeneric != 0) ? MetadataUsageType.MethodRef : MetadataUsageType.MethodDef;
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} else {
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/* These encoded indices appear in metadata usages, and are decoded by GetEncodedIndexType/GetDecodedMethodIndex */
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var encodedType = encodedIndex & 0xE0000000;
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usageType = (MetadataUsageType)(encodedType >> 29);
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index = encodedIndex & 0x1FFFFFFF;
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}
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return new MetadataUsage(usageType, (int)index);
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}
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public void SetAddress(ulong virtualAddress) => VirtualAddress = virtualAddress;
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}
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} |