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AK+Userland: Extend the compiletime format string check to other functions

Thanks to @trflynn89 for the neat implicit consteval ctor trick!
This allows us to basically slap `CheckedFormatString` on any
formatting function, and have its format argument checked at compiletime.

Note that there is a validator bug where it doesn't parse inner replaced
fields like `{:~>{}}` correctly (what should be 'left align with next
argument as size' is parsed as `{:~>{` following a literal closing
brace), so the compiletime checks are disabled on these temporarily by
forcing them to be StringViews.

This commit also removes the now unused `AK::StringLiteral` type (which
was introduced for use with NTTP strings).
This commit is contained in:
AnotherTest 2021-02-22 02:37:24 +03:30 committed by Andreas Kling
parent 29c8d34be7
commit 347d741afb
6 changed files with 277 additions and 229 deletions

View file

@ -565,36 +565,9 @@ using MakeIntegerSequence = decltype(make_integer_sequence_impl<T, N>());
template<unsigned N>
using MakeIndexSequence = MakeIntegerSequence<unsigned, N>;
template<unsigned long N>
struct StringLiteral {
constexpr StringLiteral(const char (&in)[N])
: data {}
, size { N }
{
for (unsigned long i = 0; i < N; ++i)
data[i] = in[i];
}
template<unsigned long Nx>
constexpr StringLiteral& operator=(const StringLiteral<Nx>& other)
{
static_assert(Nx <= N, "Storing a string literal in a smaller one");
for (unsigned long i = 0; i < Nx; ++i)
data[i] = other[i];
return *this;
}
template<unsigned long Nx>
constexpr StringLiteral& operator=(const char (&other)[Nx])
{
static_assert(Nx <= N, "Storing a string literal in a smaller one");
for (unsigned long i = 0; i < Nx; ++i)
data[i] = other[i];
return *this;
}
char data[N];
unsigned long size;
template<typename T>
struct IdentityType {
using Type = T;
};
}
@ -608,6 +581,7 @@ using AK::declval;
using AK::DependentFalse;
using AK::exchange;
using AK::forward;
using AK::IdentityType;
using AK::IndexSequence;
using AK::IntegerSequence;
using AK::is_trivial;
@ -630,6 +604,5 @@ using AK::max;
using AK::min;
using AK::move;
using AK::RemoveConst;
using AK::StringLiteral;
using AK::swap;
using AK::Void;