Add alignment support for UnboundedArrayType

Signed-off-by: Roberto Raggi <[email protected]>

Author: robertoraggi

.gitignore

@@ -8,3 +8,5 @@ node_modules
 .cache
 .clangd
 *.pch
+__pycache__
+*.pyc

src/parser/cxx/memory_layout.cc

@@ -255,6 +255,11 @@ struct AlignmentOf {
     return type->symbol()->alignment();
   }
 
+  auto operator()(const UnboundedArrayType* type) const
+      -> std::optional<std::size_t> {
+    return memoryLayout.alignmentOf(type->elementType());
+  }
+
   auto operator()(auto type) const -> std::optional<std::size_t> {
     // ### TODO
     if (!type) return std::nullopt;

tests/unit_tests/sema/alignof_01.cc

@@ -22,3 +22,8 @@ static_assert(alignof(long) == 4);
 static_assert(alignof(unsigned long) == 4);
 static_assert(alignof(long double) == 16);
 #endif
+
+static_assert(alignof(char[]) == 1);
+static_assert(alignof(int[]) == 4);
+static_assert(alignof(double[]) == 8);
+static_assert(alignof(__int128_t) == 16);