[PATCH v2 05/11] [PR gdb/14441] gdb: demangle: implement demangling for rvalue reference typenames

[Artemiy Volkov]

This patch fixes demangling of names containing rvalue reference typenames by
handling DEMANGLE_COMPONENT_RVALUE_REFERENCE demangle component.

./ChangeLog:

2016-01-19  Artemiy Volkov  <artemiyv@acm.org>

        * gdb/cp-name-parser.y: Handle the '&&' token in typename.
        * gdb/cp-support.c (replace_typedefs): Handle
        DEMANGLE_COMPONENT_RVALUE_REFERENCE.
        * gdb/python/py-type.c (typy_lookup_type): Likewise.
---
 gdb/cp-name-parser.y | 4 ++++
 gdb/cp-support.c     | 1 +
 gdb/python/py-type.c | 6 +++++-
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/gdb/cp-name-parser.y b/gdb/cp-name-parser.y
index c6a5c34..33fdcea 100644
--- a/gdb/cp-name-parser.y
+++ b/gdb/cp-name-parser.y
@@ -769,6 +769,10 @@ ptr_operator	:	'*' qualifiers_opt
 			{ $$.comp = make_empty (DEMANGLE_COMPONENT_REFERENCE);
 			  $$.comp->u.s_binary.left = $$.comp->u.s_binary.right = NULL;
 			  $$.last = &d_left ($$.comp); }
+		|	ANDAND
+			{ $$.comp = make_empty (DEMANGLE_COMPONENT_RVALUE_REFERENCE);
+			  $$.comp->u.s_binary.left = $$.comp->u.s_binary.right = NULL;
+			  $$.last = &d_left ($$.comp); }
 		|	nested_name '*' qualifiers_opt
 			{ $$.comp = make_empty (DEMANGLE_COMPONENT_PTRMEM_TYPE);
 			  $$.comp->u.s_binary.left = $1.comp;
diff --git a/gdb/cp-support.c b/gdb/cp-support.c
index df127c4..1dde382 100644
--- a/gdb/cp-support.c
+++ b/gdb/cp-support.c
@@ -520,6 +520,7 @@ replace_typedefs (struct demangle_parse_info *info,
 	case DEMANGLE_COMPONENT_RESTRICT_THIS:
 	case DEMANGLE_COMPONENT_POINTER:
 	case DEMANGLE_COMPONENT_REFERENCE:
+	case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
 	  replace_typedefs (info, d_left (ret_comp), finder, data);
 	  break;
 
diff --git a/gdb/python/py-type.c b/gdb/python/py-type.c
index 385cb53..a66f7ba 100644
--- a/gdb/python/py-type.c
+++ b/gdb/python/py-type.c
@@ -811,6 +811,7 @@ typy_lookup_type (struct demangle_component *demangled,
 
   if (demangled_type == DEMANGLE_COMPONENT_POINTER
       || demangled_type == DEMANGLE_COMPONENT_REFERENCE
+      || demangled_type == DEMANGLE_COMPONENT_RVALUE_REFERENCE
       || demangled_type == DEMANGLE_COMPONENT_CONST
       || demangled_type == DEMANGLE_COMPONENT_VOLATILE)
     {
@@ -827,7 +828,10 @@ typy_lookup_type (struct demangle_component *demangled,
 	  switch (demangled_type)
 	    {
 	    case DEMANGLE_COMPONENT_REFERENCE:
-             rtype = lookup_lvalue_reference_type (type);
+              rtype = lookup_lvalue_reference_type (type);
+	      break;
+	    case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
+              rtype = lookup_rvalue_reference_type (type);
 	      break;
 	    case DEMANGLE_COMPONENT_POINTER:
 	      rtype = lookup_pointer_type (type);
-- 
2.7.0