P0217R3: Parsing support and framework for AST representation of C++1z
decomposition declarations.
There are a couple of things in the wording that seem strange here:
decomposition declarations are permitted at namespace scope (which we partially
support here) and they are permitted as the declaration in a template (which we
reject).
llvm-svn: 276492
diff --git a/clang/lib/Parse/ParseTentative.cpp b/clang/lib/Parse/ParseTentative.cpp
index 7703c33..556fbf3 100644
--- a/clang/lib/Parse/ParseTentative.cpp
+++ b/clang/lib/Parse/ParseTentative.cpp
@@ -74,11 +74,18 @@
///
/// simple-declaration:
/// decl-specifier-seq init-declarator-list[opt] ';'
+/// decl-specifier-seq ref-qualifier[opt] '[' identifier-list ']'
+/// brace-or-equal-initializer ';' [C++17]
///
/// (if AllowForRangeDecl specified)
/// for ( for-range-declaration : for-range-initializer ) statement
+///
/// for-range-declaration:
-/// attribute-specifier-seqopt type-specifier-seq declarator
+/// decl-specifier-seq declarator
+/// decl-specifier-seq ref-qualifier[opt] '[' identifier-list ']'
+///
+/// In any of the above cases there can be a preceding attribute-specifier-seq,
+/// but the caller is expected to handle that.
bool Parser::isCXXSimpleDeclaration(bool AllowForRangeDecl) {
// C++ 6.8p1:
// There is an ambiguity in the grammar involving expression-statements and