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headers: fail Build on missing native exports and assert MI/COM layouts (#2739)

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Signed-off-by: Jan-Otto Kröpke <mail@jkroepke.de>
This commit is contained in:
Jan-Otto Kröpke
2026-10-16 02:32:29 +02:00
committed by GitHub
parent af2a7c3f6c
commit 2f5781ff13
43 changed files with 866 additions and 16 deletions
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internal/ole/com_windows_test.go
+36
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@@ -264,3 +264,39 @@ func TestVariantLayout(t *testing.T) {
require.Equal(t, uintptr(24), unsafe.Sizeof(Variant{}))
require.Equal(t, uintptr(8), unsafe.Offsetof(Variant{}.Value))
}
// TestNilObject checks that calls on a nil interface, a nil vtable or an empty
// vtable slot fail instead of crashing the process.
func TestNilObject(t *testing.T) {
var methods [8]uintptr
for name, object := range map[string]*Object{
"nil interface": nil,
"nil vtable": {},
"empty slot": {VTable: &methods[0]},
} {
t.Run(name, func(t *testing.T) {
_, err := object.Method(7)
require.ErrorIs(t, err, ErrNilObject)
_, err = object.Get[int32](7)
require.ErrorIs(t, err, ErrNilObject)
_, err = object.GetArg[int32](7, 0)
require.ErrorIs(t, err, ErrNilObject)
_, err = object.GetObject[nativeTestObject](7)
require.ErrorIs(t, err, ErrNilObject)
_, err = object.GetObjectArg[nativeTestObject](7, 0)
require.ErrorIs(t, err, ErrNilObject)
require.ErrorIs(t, object.Put(7, 0), ErrNilObject)
_, err = object.String(7)
require.ErrorIs(t, err, ErrNilObject)
require.NotPanics(t, object.Release)
})
}
}