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IL2CPP: Add GetMetadataUsageType() and GetMetadataUsageMethod()

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This commit is contained in:
Katy Coe
2020-02-02 23:55:11 +01:00
parent 8a0c912bc5
commit a5a79e2bef
1 changed files with 33 additions and 22 deletions
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55
Il2CppInspector/Reflection/Il2CppModel.cs
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@@ -186,38 +186,49 @@ namespace Il2CppInspector.Reflection
switch (usage.Type) { switch (usage.Type) {
case MetadataUsageType.TypeInfo: case MetadataUsageType.TypeInfo:
case MetadataUsageType.Type: case MetadataUsageType.Type:
var type = TypesByReferenceIndex[usage.SourceIndex]; return GetMetadataUsageType(usage).Name;
return type.Name;
case MetadataUsageType.MethodDef: case MetadataUsageType.MethodDef:
var method = MethodsByDefinitionIndex[usage.SourceIndex]; var method = GetMetadataUsageMethod(usage);
return $"{method.DeclaringType.Name}.{method.Name}"; return $"{method.DeclaringType.Name}.{method.Name}";
case MetadataUsageType.FieldInfo: case MetadataUsageType.FieldInfo:
var fieldRef = Package.FieldRefs[usage.SourceIndex]; var fieldRef = Package.FieldRefs[usage.SourceIndex];
type = TypesByReferenceIndex[fieldRef.typeIndex]; var type = GetMetadataUsageType(usage);
var field = type.DeclaredFields.First(f => f.Index == type.Definition.fieldStart + fieldRef.fieldIndex); var field = type.DeclaredFields.First(f => f.Index == type.Definition.fieldStart + fieldRef.fieldIndex);
return $"{type.Name}.{field.Name}"; return $"{type.Name}.{field.Name}";
case MetadataUsageType.StringLiteral: case MetadataUsageType.StringLiteral:
return Package.StringLiterals[usage.SourceIndex]; return Package.StringLiterals[usage.SourceIndex];
case MetadataUsageType.MethodRef: case MetadataUsageType.MethodRef:
var methodSpec = Package.MethodSpecs[usage.SourceIndex]; type = GetMetadataUsageType(usage);
method = GetMetadataUsageMethod(usage);
if (methodSpec.classIndexIndex != -1) return $"{type.Name}.{method.Name}";
type = TypesByMethodSpecClassIndex[methodSpec.classIndexIndex];
else
type = MethodsByDefinitionIndex[methodSpec.methodDefinitionIndex].DeclaringType;
if (methodSpec.methodIndexIndex != -1)
method = GenericMethods[methodSpec];
else
method = MethodsByDefinitionIndex[methodSpec.methodDefinitionIndex];
return $"{type.Name}.{method.Name}";
} }
throw new NotImplementedException("Unknown metadata usage type: " + usage.Type); throw new NotImplementedException("Unknown metadata usage type: " + usage.Type);
} }
// Get the type used in a metadata usage
public TypeInfo GetMetadataUsageType(MetadataUsage usage) => usage.Type switch {
MetadataUsageType.Type => TypesByReferenceIndex[usage.SourceIndex],
MetadataUsageType.TypeInfo => TypesByReferenceIndex[usage.SourceIndex],
MetadataUsageType.MethodDef => GetMetadataUsageMethod(usage).DeclaringType,
MetadataUsageType.FieldInfo => TypesByReferenceIndex[Package.FieldRefs[usage.SourceIndex].typeIndex],
MetadataUsageType.MethodRef => Package.MethodSpecs[usage.SourceIndex].classIndexIndex != -1?
TypesByMethodSpecClassIndex[Package.MethodSpecs[usage.SourceIndex].classIndexIndex] :
GetMetadataUsageMethod(usage).DeclaringType,
_ => throw new InvalidOperationException("Incorrect metadata usage type to retrieve referenced type")
};
// Get the method used in a metadata usage
public MethodBase GetMetadataUsageMethod(MetadataUsage usage) => usage.Type switch {
MetadataUsageType.MethodDef => MethodsByDefinitionIndex[usage.SourceIndex],
MetadataUsageType.MethodRef => Package.MethodSpecs[usage.SourceIndex].methodIndexIndex != -1?
GenericMethods[Package.MethodSpecs[usage.SourceIndex]] :
MethodsByDefinitionIndex[Package.MethodSpecs[usage.SourceIndex].methodDefinitionIndex],
_ => throw new InvalidOperationException("Incorrect metadata usage type to retrieve referenced type")
};
} }
} }