// Get a list of function names from il2cpp-api-functions.h, taking #ifs into account
private static IEnumerable <string> GetFunctionNamesFromAPIHeaderText(string text)
{
var defText = GetTypedefsFromAPIHeader(text);
var defs = new CppTypeCollection(32); // word size doesn't matter
defs.AddFromDeclarationText(defText);
return(defs.TypedefAliases.Keys);
}
public void TestCppTypeDeclarations()
{
// NOTE: This test doesn't check for correct results, only that parsing doesn't fail!
var unityTypeHeaders = UnityHeaders.GetAllTypeHeaders();
// Ensure we have read the embedded assembly resources
Assert.IsTrue(unityTypeHeaders.Any());
// Ensure we can interpret every header from every version of Unity without errors
// This will throw InvalidOperationException if there is a problem
foreach (var unityTypeHeader in unityTypeHeaders)
{
var cppUnityHeaderTypes = new CppTypeCollection(64);
cppUnityHeaderTypes.AddFromDeclarationText(unityTypeHeader.GetText());
foreach (var cppType in cppUnityHeaderTypes.Types)
{
Debug.WriteLine("// " + cppType.Key + "\n" + cppType.Value.ToString("o"));
}
}
// Do a few sanity checks taken from real applications (64-bit)
// NOTE: Does not provide full code coverage!
var cppTypes = CppTypeCollection.FromUnityVersion(new UnityVersion("2019.3.1f1"));
CppComplexType ct;
CppField field;
// Field offset tests
// Un-nested class
ct = (CppComplexType)cppTypes["Il2CppClass"];
field = ct[0xE0].First();
Assert.AreEqual("cctor_finished", field.Name);
field = ct[0x130].First();
Assert.AreEqual("vtable", field.Name);
field = ct["cctor_finished"];
Assert.AreEqual(0xE0, field.OffsetBytes);
field = ct["vtable"];
Assert.AreEqual(0x130, field.OffsetBytes);
// Nested class
ct = (CppComplexType)cppTypes["Il2CppClass_Merged"];
var fields = ct.Flattened;
field = fields[0xE0].First();
Assert.AreEqual("cctor_finished", field.Name);
field = fields[0x130].First();
Assert.AreEqual("vtable", field.Name);
field = fields["cctor_finished"];
Assert.AreEqual(0xE0, field.OffsetBytes);
field = fields["vtable"];
Assert.AreEqual(0x130, field.OffsetBytes);
// Bitfield
ct = (CppComplexType)cppTypes["Il2CppType"];
field = ct.Fields[0xB * 8 + 7].First();
Assert.AreEqual("pinned", field.Name);
// Nested fields
ct = (CppComplexType)cppTypes["Il2CppWin32Decimal"];
fields = ct.Flattened;
field = fields[0x08].First();
Assert.AreEqual("lo32", field.Name);
field = fields[0x08].Last();
Assert.AreEqual("lo64", field.Name);
field = fields[0x0C].First();
Assert.AreEqual("mid32", field.Name);
// Pointer alias
var alias = (CppAlias)cppTypes.GetType("Il2CppHString");
Assert.AreEqual(typeof(CppPointerType), alias.ElementType.GetType());
Assert.AreEqual("Il2CppHString__ *", alias.ElementType.Name);
// Typedef struct with no tag
Assert.True(cppTypes.Types.ContainsKey("Il2CppGenericMethodIndices"));
Assert.True(((CppComplexType)cppTypes["Il2CppGenericMethodIndices"]).ComplexValueType == ComplexValueType.Struct);
// Alignment tests
// Il2CppArrayType has an int * (sizes) after three uint8_t
Assert.AreEqual(0x10, cppTypes.GetComplexType("Il2CppArrayType")["sizes"].OffsetBytes);
// Il2CppSafeArray has a uint32_t (element_size) after two uint16_t
Assert.AreEqual(0x4, cppTypes.GetComplexType("Il2CppSafeArray")["element_size"].OffsetBytes);
}