[c++20] P1143R2: Add support for the C++20 'constinit' keyword.
This is mostly the same as the
[[clang::require_constant_initialization]] attribute, but has a couple
of additional syntactic and semantic restrictions.
In passing, I added a warning for the attribute form being added after
we have already seen the initialization of the variable (but before we
see the definition); that case previously slipped between the cracks and
the attribute was silently ignored.
llvm-svn: 370972
diff --git a/clang/lib/Parse/ParseDeclCXX.cpp b/clang/lib/Parse/ParseDeclCXX.cpp
index cf03ed6..529c09a 100644
--- a/clang/lib/Parse/ParseDeclCXX.cpp
+++ b/clang/lib/Parse/ParseDeclCXX.cpp
@@ -1313,6 +1313,8 @@
case tok::kw_mutable: // struct foo {...} mutable x;
case tok::kw_thread_local: // struct foo {...} thread_local x;
case tok::kw_constexpr: // struct foo {...} constexpr x;
+ case tok::kw_consteval: // struct foo {...} consteval x;
+ case tok::kw_constinit: // struct foo {...} constinit x;
// As shown above, type qualifiers and storage class specifiers absolutely
// can occur after class specifiers according to the grammar. However,
// almost no one actually writes code like this. If we see one of these,