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AK+Everywhere: Disallow returning a reference from a fallible expression

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This will silently make a copy. Rather than masking this behavior, let's
explicitly disallow it.
This commit is contained in:
Timothy Flynn 2023-01-13 15:48:09 -05:00 • committed by Tim Flynn
parent 3de75f6436
commit afc0e461e1
11 changed files with 86 additions and 54 deletions
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2
Userland/Utilities/matroska.cpp
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@ -17,6 +17,8 @@
outln("Encountered a parsing error: {}", _temporary_result.error().string_literal()); \
return Error::from_string_literal("Failed to parse :("); \
} \
static_assert(!IsLvalueReference<decltype(_temporary_result.release_value())>, \
"Do not return a reference from a fallible expression"); \
_temporary_result.release_value(); \
})