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AK: Allow Variant::downcast<OtherVariantType>()
We usually give type aliases to variants, so their variant types are not always available, so make it possible to downcast to another variant type.
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2 changed files with 43 additions and 16 deletions
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@ -125,6 +125,13 @@ TEST_CASE(verify_cast)
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EXPECT(one_integer_to_rule_them_all.has<i8>());
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EXPECT_EQ(fake_integer.get<i8>(), 60);
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EXPECT_EQ(one_integer_to_rule_them_all.get<i8>(), 60);
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using SomeFancyType = Variant<i8, i16>;
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one_integer_to_rule_them_all = fake_integer.downcast<SomeFancyType>();
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EXPECT(fake_integer.has<i8>());
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EXPECT(one_integer_to_rule_them_all.has<i8>());
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EXPECT_EQ(fake_integer.get<i8>(), 60);
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EXPECT_EQ(one_integer_to_rule_them_all.get<i8>(), 60);
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}
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TEST_CASE(moved_from_state)
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