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(many) Support more types in string+int and int+string concatenation #473

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merged 2 commits into from
May 7, 2024

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@perlun perlun commented May 7, 2024

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@perlun perlun added this to the 0.5.0 milestone May 7, 2024
@perlun perlun added stdlib Things related to the Perlang API/stdlib experimental compilation Issues which are relevant when using experimental compilation labels May 7, 2024
rightTypeReference.ClrType == typeof(AsciiString))) {
// 42 + "string" + 42
expr.TypeReference.ClrType = typeof(AsciiString);
}
else if (expr.Operator.Type == TokenType.PLUS &&
(leftTypeReference.ClrType == typeof(int) &&
(new[] { typeof(int), typeof(long), typeof(uint), typeof(ulong) }.Contains(typeof(int)) &&
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Hmm, these three are quite obviously wrong. 😁 Let's see if we have a test that covers this error of mine... 🙈

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I think we do, in fact. The [Internal compiler error](error: no viable conversion from 'shared_ptr)` problem is probably caused by this, triggering a different code path, making a previously skipped test no longer be skipped... and that test in turn is currently broken, since it generates C++ code which looks like this:

std::shared_ptr<const perlang::ASCIIString> a = perlang::ASCIIString::from_static_string("a");
perlang::print(a);
std::shared_ptr<const perlang::ASCIIString> b = (*a + *perlang::ASCIIString::from_static_string(" b"));
perlang::print(b);
std::shared_ptr<const perlang::ASCIIString> c = (*a + *perlang::ASCIIString::from_static_string(" c"));
perlang::print(c);
std::shared_ptr<const perlang::ASCIIString> d = (*b + *perlang::ASCIIString::from_static_string(" d"));
perlang::print(d);

This fails because some of these + operators return a std::shared_ptr<const perlang::String>, which can't be converted to std::shared_ptr<const perlang::ASCIIString>. We'll have to look into this at some point, but not tonight...

@perlun perlun force-pushed the feature/string-and-unsigned-int-concatenation branch from 48e684d to ac29a54 Compare May 7, 2024 19:46
@perlun perlun force-pushed the feature/string-and-unsigned-int-concatenation branch from ac29a54 to c63fda4 Compare May 7, 2024 20:17
@perlun perlun enabled auto-merge (squash) May 7, 2024 20:17
...and remove some commented out code that was merged by mistake
in #462.
@perlun perlun force-pushed the feature/string-and-unsigned-int-concatenation branch from c63fda4 to 321f94d Compare May 7, 2024 20:24
@perlun perlun merged commit a9fe3b8 into master May 7, 2024
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@perlun perlun deleted the feature/string-and-unsigned-int-concatenation branch May 7, 2024 20:27
@perlun perlun mentioned this pull request May 8, 2024
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