diff options
| -rw-r--r-- | gcc/cp/parser.cc | 26 |
1 files changed, 15 insertions, 11 deletions
diff --git a/gcc/cp/parser.cc b/gcc/cp/parser.cc index a39c5f0..e685f19 100644 --- a/gcc/cp/parser.cc +++ b/gcc/cp/parser.cc @@ -48996,12 +48996,11 @@ synthesize_implicit_template_parm (cp_parser *parser, tree constr) tree proto = constr ? DECL_INITIAL (constr) : NULL_TREE; tree synth_id = make_generic_type_name (); - tree synth_tmpl_parm; bool non_type = false; /* Synthesize the type template parameter. */ gcc_assert(!proto || TREE_CODE (proto) == TYPE_DECL); - synth_tmpl_parm = finish_template_type_parm (class_type_node, synth_id); + tree synth_tmpl_parm = finish_template_type_parm (class_type_node, synth_id); if (become_template) current_template_parms = tree_cons (size_int (current_template_depth + 1), @@ -49016,22 +49015,27 @@ synthesize_implicit_template_parm (cp_parser *parser, tree constr) node, /*non_type=*/non_type, /*param_pack=*/false); + // Process_template_parm returns the list of parms, and + // parser->implicit_template_parms holds the final node of the parm + // list. We really want to manipulate the newly appended element. + gcc_checking_assert (!parser->implicit_template_parms + || parser->implicit_template_parms == new_parm); + if (parser->implicit_template_parms) + new_parm = TREE_CHAIN (new_parm); + gcc_checking_assert (!TREE_CHAIN (new_parm)); + + // Record the last implicit parm node + parser->implicit_template_parms = new_parm; /* Mark the synthetic declaration "virtual". This is used when comparing template-heads to determine if whether an abbreviated function template is equivalent to an explicit template. - Note that DECL_ARTIFICIAL is used elsewhere for template parameters. */ + Note that DECL_ARTIFICIAL is used elsewhere for template + parameters. */ if (TREE_VALUE (new_parm) != error_mark_node) DECL_VIRTUAL_P (TREE_VALUE (new_parm)) = true; - // Chain the new parameter to the list of implicit parameters. - if (parser->implicit_template_parms) - parser->implicit_template_parms - = TREE_CHAIN (parser->implicit_template_parms); - else - parser->implicit_template_parms = new_parm; - tree new_decl = get_local_decls (); if (non_type) /* Return the TEMPLATE_PARM_INDEX, not the PARM_DECL. */ @@ -49059,7 +49063,7 @@ synthesize_implicit_template_parm (cp_parser *parser, tree constr) /* If the new parameter was constrained, we need to add that to the constraints in the template parameter list. */ - if (tree req = TEMPLATE_PARM_CONSTRAINTS (tree_last (new_parm))) + if (tree req = TEMPLATE_PARM_CONSTRAINTS (new_parm)) { tree reqs = TEMPLATE_PARMS_CONSTRAINTS (current_template_parms); reqs = combine_constraint_expressions (reqs, req); |