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-rw-r--r--gcc-4.9/gcc/cp/error.c3612
1 files changed, 3612 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/cp/error.c b/gcc-4.9/gcc/cp/error.c
new file mode 100644
index 0000000..454feb5
--- /dev/null
+++ b/gcc-4.9/gcc/cp/error.c
@@ -0,0 +1,3612 @@
+/* Call-backs for C++ error reporting.
+ This code is non-reentrant.
+ Copyright (C) 1993-2014 Free Software Foundation, Inc.
+ This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 3, or (at your option)
+any later version.
+
+GCC is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#include "config.h"
+#include "system.h"
+#include "coretypes.h"
+#include "tm.h"
+#include "tree.h"
+#include "stringpool.h"
+#include "cp-tree.h"
+#include "flags.h"
+#include "diagnostic.h"
+#include "tree-diagnostic.h"
+#include "langhooks-def.h"
+#include "intl.h"
+#include "cxx-pretty-print.h"
+#include "tree-pretty-print.h"
+#include "pointer-set.h"
+#include "c-family/c-objc.h"
+#include "ubsan.h"
+
+#include <new> // For placement-new.
+
+#define pp_separate_with_comma(PP) pp_cxx_separate_with (PP, ',')
+#define pp_separate_with_semicolon(PP) pp_cxx_separate_with (PP, ';')
+
+/* The global buffer where we dump everything. It is there only for
+ transitional purpose. It is expected, in the near future, to be
+ completely removed. */
+static cxx_pretty_printer scratch_pretty_printer;
+#define cxx_pp (&scratch_pretty_printer)
+
+/* Translate if being used for diagnostics, but not for dump files or
+ __PRETTY_FUNCTION. */
+#define M_(msgid) (pp_translate_identifiers (cxx_pp) ? _(msgid) : (msgid))
+
+# define NEXT_CODE(T) (TREE_CODE (TREE_TYPE (T)))
+
+static const char *args_to_string (tree, int);
+static const char *assop_to_string (enum tree_code);
+static const char *code_to_string (enum tree_code);
+static const char *cv_to_string (tree, int);
+static const char *decl_to_string (tree, int);
+static const char *expr_to_string (tree);
+static const char *fndecl_to_string (tree, int);
+static const char *op_to_string (enum tree_code);
+static const char *parm_to_string (int);
+static const char *type_to_string (tree, int);
+
+static void dump_alias_template_specialization (cxx_pretty_printer *, tree, int);
+static void dump_type (cxx_pretty_printer *, tree, int);
+static void dump_typename (cxx_pretty_printer *, tree, int);
+static void dump_simple_decl (cxx_pretty_printer *, tree, tree, int);
+static void dump_decl (cxx_pretty_printer *, tree, int);
+static void dump_template_decl (cxx_pretty_printer *, tree, int);
+static void dump_function_decl (cxx_pretty_printer *, tree, int);
+static void dump_expr (cxx_pretty_printer *, tree, int);
+static void dump_unary_op (cxx_pretty_printer *, const char *, tree, int);
+static void dump_binary_op (cxx_pretty_printer *, const char *, tree, int);
+static void dump_aggr_type (cxx_pretty_printer *, tree, int);
+static void dump_type_prefix (cxx_pretty_printer *, tree, int);
+static void dump_type_suffix (cxx_pretty_printer *, tree, int);
+static void dump_function_name (cxx_pretty_printer *, tree, int);
+static void dump_call_expr_args (cxx_pretty_printer *, tree, int, bool);
+static void dump_aggr_init_expr_args (cxx_pretty_printer *, tree, int, bool);
+static void dump_expr_list (cxx_pretty_printer *, tree, int);
+static void dump_global_iord (cxx_pretty_printer *, tree);
+static void dump_parameters (cxx_pretty_printer *, tree, int);
+static void dump_ref_qualifier (cxx_pretty_printer *, tree, int);
+static void dump_exception_spec (cxx_pretty_printer *, tree, int);
+static void dump_template_argument (cxx_pretty_printer *, tree, int);
+static void dump_template_argument_list (cxx_pretty_printer *, tree, int);
+static void dump_template_parameter (cxx_pretty_printer *, tree, int);
+static void dump_template_bindings (cxx_pretty_printer *, tree, tree,
+ vec<tree, va_gc> *);
+static void dump_scope (cxx_pretty_printer *, tree, int);
+static void dump_template_parms (cxx_pretty_printer *, tree, int, int);
+static int get_non_default_template_args_count (tree, int);
+static const char *function_category (tree);
+static void maybe_print_constexpr_context (diagnostic_context *);
+static void maybe_print_instantiation_context (diagnostic_context *);
+static void print_instantiation_full_context (diagnostic_context *);
+static void print_instantiation_partial_context (diagnostic_context *,
+ struct tinst_level *,
+ location_t);
+static void cp_diagnostic_starter (diagnostic_context *, diagnostic_info *);
+static void cp_diagnostic_finalizer (diagnostic_context *, diagnostic_info *);
+static void cp_print_error_function (diagnostic_context *, diagnostic_info *);
+
+static bool cp_printer (pretty_printer *, text_info *, const char *,
+ int, bool, bool, bool);
+
+void
+init_error (void)
+{
+ diagnostic_starter (global_dc) = cp_diagnostic_starter;
+ diagnostic_finalizer (global_dc) = cp_diagnostic_finalizer;
+ diagnostic_format_decoder (global_dc) = cp_printer;
+
+ new (cxx_pp) cxx_pretty_printer ();
+}
+
+/* Dump a scope, if deemed necessary. */
+
+static void
+dump_scope (cxx_pretty_printer *pp, tree scope, int flags)
+{
+ int f = flags & (TFF_SCOPE | TFF_CHASE_TYPEDEF);
+
+ if (scope == NULL_TREE)
+ return;
+
+ if (TREE_CODE (scope) == NAMESPACE_DECL)
+ {
+ if (scope != global_namespace)
+ {
+ dump_decl (pp, scope, f);
+ pp_cxx_colon_colon (pp);
+ }
+ }
+ else if (AGGREGATE_TYPE_P (scope))
+ {
+ dump_type (pp, scope, f);
+ pp_cxx_colon_colon (pp);
+ }
+ else if ((flags & TFF_SCOPE) && TREE_CODE (scope) == FUNCTION_DECL)
+ {
+ dump_function_decl (pp, scope, f);
+ pp_cxx_colon_colon (pp);
+ }
+}
+
+/* Dump the template ARGument under control of FLAGS. */
+
+static void
+dump_template_argument (cxx_pretty_printer *pp, tree arg, int flags)
+{
+ if (ARGUMENT_PACK_P (arg))
+ dump_template_argument_list (pp, ARGUMENT_PACK_ARGS (arg),
+ /* No default args in argument packs. */
+ flags|TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS);
+ else if (TYPE_P (arg) || TREE_CODE (arg) == TEMPLATE_DECL)
+ dump_type (pp, arg, flags & ~TFF_CLASS_KEY_OR_ENUM);
+ else
+ {
+ if (TREE_CODE (arg) == TREE_LIST)
+ arg = TREE_VALUE (arg);
+
+ dump_expr (pp, arg, (flags | TFF_EXPR_IN_PARENS) & ~TFF_CLASS_KEY_OR_ENUM);
+ }
+}
+
+/* Count the number of template arguments ARGS whose value does not
+ match the (optional) default template parameter in PARAMS */
+
+static int
+get_non_default_template_args_count (tree args, int flags)
+{
+ int n = TREE_VEC_LENGTH (INNERMOST_TEMPLATE_ARGS (args));
+
+ if (/* We use this flag when generating debug information. We don't
+ want to expand templates at this point, for this may generate
+ new decls, which gets decl counts out of sync, which may in
+ turn cause codegen differences between compilations with and
+ without -g. */
+ (flags & TFF_NO_OMIT_DEFAULT_TEMPLATE_ARGUMENTS) != 0
+ || !flag_pretty_templates)
+ return n;
+
+ return GET_NON_DEFAULT_TEMPLATE_ARGS_COUNT (INNERMOST_TEMPLATE_ARGS (args));
+}
+
+/* Dump a template-argument-list ARGS (always a TREE_VEC) under control
+ of FLAGS. */
+
+static void
+dump_template_argument_list (cxx_pretty_printer *pp, tree args, int flags)
+{
+ int n = get_non_default_template_args_count (args, flags);
+ int need_comma = 0;
+ int i;
+
+ for (i = 0; i < n; ++i)
+ {
+ tree arg = TREE_VEC_ELT (args, i);
+
+ /* Only print a comma if we know there is an argument coming. In
+ the case of an empty template argument pack, no actual
+ argument will be printed. */
+ if (need_comma
+ && (!ARGUMENT_PACK_P (arg)
+ || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
+ pp_separate_with_comma (pp);
+
+ dump_template_argument (pp, arg, flags);
+ need_comma = 1;
+ }
+}
+
+/* Dump a template parameter PARM (a TREE_LIST) under control of FLAGS. */
+
+static void
+dump_template_parameter (cxx_pretty_printer *pp, tree parm, int flags)
+{
+ tree p;
+ tree a;
+
+ if (parm == error_mark_node)
+ return;
+
+ p = TREE_VALUE (parm);
+ a = TREE_PURPOSE (parm);
+
+ if (TREE_CODE (p) == TYPE_DECL)
+ {
+ if (flags & TFF_DECL_SPECIFIERS)
+ {
+ pp_cxx_ws_string (pp, "class");
+ if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (p)))
+ pp_cxx_ws_string (pp, "...");
+ if (DECL_NAME (p))
+ pp_cxx_tree_identifier (pp, DECL_NAME (p));
+ }
+ else if (DECL_NAME (p))
+ pp_cxx_tree_identifier (pp, DECL_NAME (p));
+ else
+ pp_cxx_canonical_template_parameter (pp, TREE_TYPE (p));
+ }
+ else
+ dump_decl (pp, p, flags | TFF_DECL_SPECIFIERS);
+
+ if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && a != NULL_TREE)
+ {
+ pp_cxx_whitespace (pp);
+ pp_equal (pp);
+ pp_cxx_whitespace (pp);
+ if (TREE_CODE (p) == TYPE_DECL || TREE_CODE (p) == TEMPLATE_DECL)
+ dump_type (pp, a, flags & ~TFF_CHASE_TYPEDEF);
+ else
+ dump_expr (pp, a, flags | TFF_EXPR_IN_PARENS);
+ }
+}
+
+/* Dump, under control of FLAGS, a template-parameter-list binding.
+ PARMS is a TREE_LIST of TREE_VEC of TREE_LIST and ARGS is a
+ TREE_VEC. */
+
+static void
+dump_template_bindings (cxx_pretty_printer *pp, tree parms, tree args,
+ vec<tree, va_gc> *typenames)
+{
+ bool need_semicolon = false;
+ int i;
+ tree t;
+
+ while (parms)
+ {
+ tree p = TREE_VALUE (parms);
+ int lvl = TMPL_PARMS_DEPTH (parms);
+ int arg_idx = 0;
+ int i;
+ tree lvl_args = NULL_TREE;
+
+ /* Don't crash if we had an invalid argument list. */
+ if (TMPL_ARGS_DEPTH (args) >= lvl)
+ lvl_args = TMPL_ARGS_LEVEL (args, lvl);
+
+ for (i = 0; i < TREE_VEC_LENGTH (p); ++i)
+ {
+ tree arg = NULL_TREE;
+
+ /* Don't crash if we had an invalid argument list. */
+ if (lvl_args && NUM_TMPL_ARGS (lvl_args) > arg_idx)
+ arg = TREE_VEC_ELT (lvl_args, arg_idx);
+
+ if (need_semicolon)
+ pp_separate_with_semicolon (pp);
+ dump_template_parameter (pp, TREE_VEC_ELT (p, i),
+ TFF_PLAIN_IDENTIFIER);
+ pp_cxx_whitespace (pp);
+ pp_equal (pp);
+ pp_cxx_whitespace (pp);
+ if (arg)
+ {
+ if (ARGUMENT_PACK_P (arg))
+ pp_cxx_left_brace (pp);
+ dump_template_argument (pp, arg, TFF_PLAIN_IDENTIFIER);
+ if (ARGUMENT_PACK_P (arg))
+ pp_cxx_right_brace (pp);
+ }
+ else
+ pp_string (pp, M_("<missing>"));
+
+ ++arg_idx;
+ need_semicolon = true;
+ }
+
+ parms = TREE_CHAIN (parms);
+ }
+
+ /* Don't bother with typenames for a partial instantiation. */
+ if (vec_safe_is_empty (typenames) || uses_template_parms (args))
+ return;
+
+ FOR_EACH_VEC_SAFE_ELT (typenames, i, t)
+ {
+ if (need_semicolon)
+ pp_separate_with_semicolon (pp);
+ dump_type (pp, t, TFF_PLAIN_IDENTIFIER);
+ pp_cxx_whitespace (pp);
+ pp_equal (pp);
+ pp_cxx_whitespace (pp);
+ push_deferring_access_checks (dk_no_check);
+ t = tsubst (t, args, tf_none, NULL_TREE);
+ pop_deferring_access_checks ();
+ /* Strip typedefs. We can't just use TFF_CHASE_TYPEDEF because
+ pp_simple_type_specifier doesn't know about it. */
+ t = strip_typedefs (t);
+ dump_type (pp, t, TFF_PLAIN_IDENTIFIER);
+ }
+}
+
+/* Dump a human-readable equivalent of the alias template
+ specialization of T. */
+
+static void
+dump_alias_template_specialization (cxx_pretty_printer *pp, tree t, int flags)
+{
+ tree name;
+
+ gcc_assert (alias_template_specialization_p (t));
+
+ if (!(flags & TFF_UNQUALIFIED_NAME))
+ dump_scope (pp, CP_DECL_CONTEXT (TYPE_NAME (t)), flags);
+ name = TYPE_IDENTIFIER (t);
+ pp_cxx_tree_identifier (pp, name);
+ dump_template_parms (pp, TYPE_TEMPLATE_INFO (t),
+ /*primary=*/false,
+ flags & ~TFF_TEMPLATE_HEADER);
+}
+
+/* Dump a human-readable equivalent of TYPE. FLAGS controls the
+ format. */
+
+static void
+dump_type (cxx_pretty_printer *pp, tree t, int flags)
+{
+ if (t == NULL_TREE)
+ return;
+
+ /* Don't print e.g. "struct mytypedef". */
+ if (TYPE_P (t) && typedef_variant_p (t))
+ {
+ tree decl = TYPE_NAME (t);
+ if ((flags & TFF_CHASE_TYPEDEF)
+ || DECL_SELF_REFERENCE_P (decl)
+ || (!flag_pretty_templates
+ && DECL_LANG_SPECIFIC (decl) && DECL_TEMPLATE_INFO (decl)))
+ t = strip_typedefs (t);
+ else if (alias_template_specialization_p (t))
+ {
+ dump_alias_template_specialization (pp, t, flags);
+ return;
+ }
+ else if (same_type_p (t, TREE_TYPE (decl)))
+ t = decl;
+ else
+ {
+ pp_cxx_cv_qualifier_seq (pp, t);
+ pp_cxx_tree_identifier (pp, TYPE_IDENTIFIER (t));
+ return;
+ }
+ }
+
+ if (TYPE_PTRMEMFUNC_P (t))
+ goto offset_type;
+
+ switch (TREE_CODE (t))
+ {
+ case LANG_TYPE:
+ if (t == init_list_type_node)
+ pp_string (pp, M_("<brace-enclosed initializer list>"));
+ else if (t == unknown_type_node)
+ pp_string (pp, M_("<unresolved overloaded function type>"));
+ else
+ {
+ pp_cxx_cv_qualifier_seq (pp, t);
+ pp_cxx_tree_identifier (pp, TYPE_IDENTIFIER (t));
+ }
+ break;
+
+ case TREE_LIST:
+ /* A list of function parms. */
+ dump_parameters (pp, t, flags);
+ break;
+
+ case IDENTIFIER_NODE:
+ pp_cxx_tree_identifier (pp, t);
+ break;
+
+ case TREE_BINFO:
+ dump_type (pp, BINFO_TYPE (t), flags);
+ break;
+
+ case RECORD_TYPE:
+ case UNION_TYPE:
+ case ENUMERAL_TYPE:
+ dump_aggr_type (pp, t, flags);
+ break;
+
+ case TYPE_DECL:
+ if (flags & TFF_CHASE_TYPEDEF)
+ {
+ dump_type (pp, DECL_ORIGINAL_TYPE (t)
+ ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t), flags);
+ break;
+ }
+ /* Else fall through. */
+
+ case TEMPLATE_DECL:
+ case NAMESPACE_DECL:
+ dump_decl (pp, t, flags & ~TFF_DECL_SPECIFIERS);
+ break;
+
+ case INTEGER_TYPE:
+ case REAL_TYPE:
+ case VOID_TYPE:
+ case BOOLEAN_TYPE:
+ case COMPLEX_TYPE:
+ case VECTOR_TYPE:
+ case FIXED_POINT_TYPE:
+ pp_type_specifier_seq (pp, t);
+ break;
+
+ case TEMPLATE_TEMPLATE_PARM:
+ /* For parameters inside template signature. */
+ if (TYPE_IDENTIFIER (t))
+ pp_cxx_tree_identifier (pp, TYPE_IDENTIFIER (t));
+ else
+ pp_cxx_canonical_template_parameter (pp, t);
+ break;
+
+ case BOUND_TEMPLATE_TEMPLATE_PARM:
+ {
+ tree args = TYPE_TI_ARGS (t);
+ pp_cxx_cv_qualifier_seq (pp, t);
+ pp_cxx_tree_identifier (pp, TYPE_IDENTIFIER (t));
+ pp_cxx_begin_template_argument_list (pp);
+ dump_template_argument_list (pp, args, flags);
+ pp_cxx_end_template_argument_list (pp);
+ }
+ break;
+
+ case TEMPLATE_TYPE_PARM:
+ pp_cxx_cv_qualifier_seq (pp, t);
+ if (TYPE_IDENTIFIER (t))
+ pp_cxx_tree_identifier (pp, TYPE_IDENTIFIER (t));
+ else
+ pp_cxx_canonical_template_parameter
+ (pp, TEMPLATE_TYPE_PARM_INDEX (t));
+ break;
+
+ /* This is not always necessary for pointers and such, but doing this
+ reduces code size. */
+ case ARRAY_TYPE:
+ case POINTER_TYPE:
+ case REFERENCE_TYPE:
+ case OFFSET_TYPE:
+ offset_type:
+ case FUNCTION_TYPE:
+ case METHOD_TYPE:
+ {
+ dump_type_prefix (pp, t, flags);
+ dump_type_suffix (pp, t, flags);
+ break;
+ }
+ case TYPENAME_TYPE:
+ if (! (flags & TFF_CHASE_TYPEDEF)
+ && DECL_ORIGINAL_TYPE (TYPE_NAME (t)))
+ {
+ dump_decl (pp, TYPE_NAME (t), TFF_PLAIN_IDENTIFIER);
+ break;
+ }
+ pp_cxx_cv_qualifier_seq (pp, t);
+ pp_cxx_ws_string (pp,
+ TYPENAME_IS_ENUM_P (t) ? "enum"
+ : TYPENAME_IS_CLASS_P (t) ? "class"
+ : "typename");
+ dump_typename (pp, t, flags);
+ break;
+
+ case UNBOUND_CLASS_TEMPLATE:
+ if (! (flags & TFF_UNQUALIFIED_NAME))
+ {
+ dump_type (pp, TYPE_CONTEXT (t), flags);
+ pp_cxx_colon_colon (pp);
+ }
+ pp_cxx_ws_string (pp, "template");
+ dump_type (pp, TYPE_IDENTIFIER (t), flags);
+ break;
+
+ case TYPEOF_TYPE:
+ pp_cxx_ws_string (pp, "__typeof__");
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TYPEOF_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case UNDERLYING_TYPE:
+ pp_cxx_ws_string (pp, "__underlying_type");
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, UNDERLYING_TYPE_TYPE (t), flags & ~TFF_EXPR_IN_PARENS);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case TYPE_PACK_EXPANSION:
+ dump_type (pp, PACK_EXPANSION_PATTERN (t), flags);
+ pp_cxx_ws_string (pp, "...");
+ break;
+
+ case TYPE_ARGUMENT_PACK:
+ dump_template_argument (pp, t, flags);
+ break;
+
+ case DECLTYPE_TYPE:
+ pp_cxx_ws_string (pp, "decltype");
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, DECLTYPE_TYPE_EXPR (t), flags & ~TFF_EXPR_IN_PARENS);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case NULLPTR_TYPE:
+ pp_string (pp, "std::nullptr_t");
+ break;
+
+ default:
+ pp_unsupported_tree (pp, t);
+ /* Fall through to error. */
+
+ case ERROR_MARK:
+ pp_string (pp, M_("<type error>"));
+ break;
+ }
+}
+
+/* Dump a TYPENAME_TYPE. We need to notice when the context is itself
+ a TYPENAME_TYPE. */
+
+static void
+dump_typename (cxx_pretty_printer *pp, tree t, int flags)
+{
+ tree ctx = TYPE_CONTEXT (t);
+
+ if (TREE_CODE (ctx) == TYPENAME_TYPE)
+ dump_typename (pp, ctx, flags);
+ else
+ dump_type (pp, ctx, flags & ~TFF_CLASS_KEY_OR_ENUM);
+ pp_cxx_colon_colon (pp);
+ dump_decl (pp, TYPENAME_TYPE_FULLNAME (t), flags);
+}
+
+/* Return the name of the supplied aggregate, or enumeral type. */
+
+const char *
+class_key_or_enum_as_string (tree t)
+{
+ if (TREE_CODE (t) == ENUMERAL_TYPE)
+ {
+ if (SCOPED_ENUM_P (t))
+ return "enum class";
+ else
+ return "enum";
+ }
+ else if (TREE_CODE (t) == UNION_TYPE)
+ return "union";
+ else if (TYPE_LANG_SPECIFIC (t) && CLASSTYPE_DECLARED_CLASS (t))
+ return "class";
+ else
+ return "struct";
+}
+
+/* Print out a class declaration T under the control of FLAGS,
+ in the form `class foo'. */
+
+static void
+dump_aggr_type (cxx_pretty_printer *pp, tree t, int flags)
+{
+ tree name;
+ const char *variety = class_key_or_enum_as_string (t);
+ int typdef = 0;
+ int tmplate = 0;
+
+ pp_cxx_cv_qualifier_seq (pp, t);
+
+ if (flags & TFF_CLASS_KEY_OR_ENUM)
+ pp_cxx_ws_string (pp, variety);
+
+ name = TYPE_NAME (t);
+
+ if (name)
+ {
+ typdef = (!DECL_ARTIFICIAL (name)
+ /* An alias specialization is not considered to be a
+ typedef. */
+ && !alias_template_specialization_p (t));
+
+ if ((typdef
+ && ((flags & TFF_CHASE_TYPEDEF)
+ || (!flag_pretty_templates && DECL_LANG_SPECIFIC (name)
+ && DECL_TEMPLATE_INFO (name))))
+ || DECL_SELF_REFERENCE_P (name))
+ {
+ t = TYPE_MAIN_VARIANT (t);
+ name = TYPE_NAME (t);
+ typdef = 0;
+ }
+
+ tmplate = !typdef && TREE_CODE (t) != ENUMERAL_TYPE
+ && TYPE_LANG_SPECIFIC (t) && CLASSTYPE_TEMPLATE_INFO (t)
+ && (TREE_CODE (CLASSTYPE_TI_TEMPLATE (t)) != TEMPLATE_DECL
+ || PRIMARY_TEMPLATE_P (CLASSTYPE_TI_TEMPLATE (t)));
+
+ if (! (flags & TFF_UNQUALIFIED_NAME))
+ dump_scope (pp, CP_DECL_CONTEXT (name), flags | TFF_SCOPE);
+ flags &= ~TFF_UNQUALIFIED_NAME;
+ if (tmplate)
+ {
+ /* Because the template names are mangled, we have to locate
+ the most general template, and use that name. */
+ tree tpl = TYPE_TI_TEMPLATE (t);
+
+ while (DECL_TEMPLATE_INFO (tpl))
+ tpl = DECL_TI_TEMPLATE (tpl);
+ name = tpl;
+ }
+ name = DECL_NAME (name);
+ }
+
+ if (name == 0 || ANON_AGGRNAME_P (name))
+ {
+ if (flags & TFF_CLASS_KEY_OR_ENUM)
+ pp_string (pp, M_("<anonymous>"));
+ else
+ pp_printf (pp, M_("<anonymous %s>"), variety);
+ }
+ else if (LAMBDA_TYPE_P (t))
+ {
+ /* A lambda's "type" is essentially its signature. */
+ pp_string (pp, M_("<lambda"));
+ if (lambda_function (t))
+ dump_parameters (pp,
+ FUNCTION_FIRST_USER_PARMTYPE (lambda_function (t)),
+ flags);
+ pp_greater (pp);
+ }
+ else
+ pp_cxx_tree_identifier (pp, name);
+ if (tmplate)
+ dump_template_parms (pp, TYPE_TEMPLATE_INFO (t),
+ !CLASSTYPE_USE_TEMPLATE (t),
+ flags & ~TFF_TEMPLATE_HEADER);
+}
+
+/* Dump into the obstack the initial part of the output for a given type.
+ This is necessary when dealing with things like functions returning
+ functions. Examples:
+
+ return type of `int (* fee ())()': pointer -> function -> int. Both
+ pointer (and reference and offset) and function (and member) types must
+ deal with prefix and suffix.
+
+ Arrays must also do this for DECL nodes, like int a[], and for things like
+ int *[]&. */
+
+static void
+dump_type_prefix (cxx_pretty_printer *pp, tree t, int flags)
+{
+ if (TYPE_PTRMEMFUNC_P (t))
+ {
+ t = TYPE_PTRMEMFUNC_FN_TYPE (t);
+ goto offset_type;
+ }
+
+ switch (TREE_CODE (t))
+ {
+ case POINTER_TYPE:
+ case REFERENCE_TYPE:
+ {
+ tree sub = TREE_TYPE (t);
+
+ dump_type_prefix (pp, sub, flags);
+ if (TREE_CODE (sub) == ARRAY_TYPE
+ || TREE_CODE (sub) == FUNCTION_TYPE)
+ {
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ pp_c_attributes_display (pp, TYPE_ATTRIBUTES (sub));
+ }
+ if (TYPE_PTR_P (t))
+ pp_star (pp);
+ else if (TREE_CODE (t) == REFERENCE_TYPE)
+ {
+ if (TYPE_REF_IS_RVALUE (t))
+ pp_ampersand_ampersand (pp);
+ else
+ pp_ampersand (pp);
+ }
+ pp->padding = pp_before;
+ pp_cxx_cv_qualifier_seq (pp, t);
+ }
+ break;
+
+ case OFFSET_TYPE:
+ offset_type:
+ dump_type_prefix (pp, TREE_TYPE (t), flags);
+ if (TREE_CODE (t) == OFFSET_TYPE) /* pmfs deal with this in d_t_p */
+ {
+ pp_maybe_space (pp);
+ if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE)
+ pp_cxx_left_paren (pp);
+ dump_type (pp, TYPE_OFFSET_BASETYPE (t), flags);
+ pp_cxx_colon_colon (pp);
+ }
+ pp_cxx_star (pp);
+ pp_cxx_cv_qualifier_seq (pp, t);
+ pp->padding = pp_before;
+ break;
+
+ /* This can be reached without a pointer when dealing with
+ templates, e.g. std::is_function. */
+ case FUNCTION_TYPE:
+ dump_type_prefix (pp, TREE_TYPE (t), flags);
+ break;
+
+ case METHOD_TYPE:
+ dump_type_prefix (pp, TREE_TYPE (t), flags);
+ pp_maybe_space (pp);
+ pp_cxx_left_paren (pp);
+ dump_aggr_type (pp, TYPE_METHOD_BASETYPE (t), flags);
+ pp_cxx_colon_colon (pp);
+ break;
+
+ case ARRAY_TYPE:
+ dump_type_prefix (pp, TREE_TYPE (t), flags);
+ break;
+
+ case ENUMERAL_TYPE:
+ case IDENTIFIER_NODE:
+ case INTEGER_TYPE:
+ case BOOLEAN_TYPE:
+ case REAL_TYPE:
+ case RECORD_TYPE:
+ case TEMPLATE_TYPE_PARM:
+ case TEMPLATE_TEMPLATE_PARM:
+ case BOUND_TEMPLATE_TEMPLATE_PARM:
+ case TREE_LIST:
+ case TYPE_DECL:
+ case TREE_VEC:
+ case UNION_TYPE:
+ case LANG_TYPE:
+ case VOID_TYPE:
+ case TYPENAME_TYPE:
+ case COMPLEX_TYPE:
+ case VECTOR_TYPE:
+ case TYPEOF_TYPE:
+ case UNDERLYING_TYPE:
+ case DECLTYPE_TYPE:
+ case TYPE_PACK_EXPANSION:
+ case FIXED_POINT_TYPE:
+ case NULLPTR_TYPE:
+ dump_type (pp, t, flags);
+ pp->padding = pp_before;
+ break;
+
+ default:
+ pp_unsupported_tree (pp, t);
+ /* fall through. */
+ case ERROR_MARK:
+ pp_string (pp, M_("<typeprefixerror>"));
+ break;
+ }
+}
+
+/* Dump the suffix of type T, under control of FLAGS. This is the part
+ which appears after the identifier (or function parms). */
+
+static void
+dump_type_suffix (cxx_pretty_printer *pp, tree t, int flags)
+{
+ if (TYPE_PTRMEMFUNC_P (t))
+ t = TYPE_PTRMEMFUNC_FN_TYPE (t);
+
+ switch (TREE_CODE (t))
+ {
+ case POINTER_TYPE:
+ case REFERENCE_TYPE:
+ case OFFSET_TYPE:
+ if (TREE_CODE (TREE_TYPE (t)) == ARRAY_TYPE
+ || TREE_CODE (TREE_TYPE (t)) == FUNCTION_TYPE)
+ pp_cxx_right_paren (pp);
+ dump_type_suffix (pp, TREE_TYPE (t), flags);
+ break;
+
+ case FUNCTION_TYPE:
+ case METHOD_TYPE:
+ {
+ tree arg;
+ if (TREE_CODE (t) == METHOD_TYPE)
+ /* Can only be reached through a pointer. */
+ pp_cxx_right_paren (pp);
+ arg = TYPE_ARG_TYPES (t);
+ if (TREE_CODE (t) == METHOD_TYPE)
+ arg = TREE_CHAIN (arg);
+
+ /* Function pointers don't have default args. Not in standard C++,
+ anyway; they may in g++, but we'll just pretend otherwise. */
+ dump_parameters (pp, arg, flags & ~TFF_FUNCTION_DEFAULT_ARGUMENTS);
+
+ pp->padding = pp_before;
+ pp_cxx_cv_qualifiers (pp, type_memfn_quals (t));
+ dump_ref_qualifier (pp, t, flags);
+ dump_exception_spec (pp, TYPE_RAISES_EXCEPTIONS (t), flags);
+ dump_type_suffix (pp, TREE_TYPE (t), flags);
+ break;
+ }
+
+ case ARRAY_TYPE:
+ pp_maybe_space (pp);
+ pp_cxx_left_bracket (pp);
+ if (TYPE_DOMAIN (t))
+ {
+ tree dtype = TYPE_DOMAIN (t);
+ tree max = TYPE_MAX_VALUE (dtype);
+ if (integer_all_onesp (max))
+ pp_character (pp, '0');
+ else if (tree_fits_shwi_p (max))
+ pp_wide_integer (pp, tree_to_shwi (max) + 1);
+ else
+ {
+ STRIP_NOPS (max);
+ if (TREE_CODE (max) == SAVE_EXPR)
+ max = TREE_OPERAND (max, 0);
+ if (TREE_CODE (max) == MINUS_EXPR
+ || TREE_CODE (max) == PLUS_EXPR)
+ {
+ max = TREE_OPERAND (max, 0);
+ while (CONVERT_EXPR_P (max))
+ max = TREE_OPERAND (max, 0);
+ }
+ else
+ max = fold_build2_loc (input_location,
+ PLUS_EXPR, dtype, max,
+ build_int_cst (dtype, 1));
+ dump_expr (pp, max, flags & ~TFF_EXPR_IN_PARENS);
+ }
+ }
+ pp_cxx_right_bracket (pp);
+ dump_type_suffix (pp, TREE_TYPE (t), flags);
+ break;
+
+ case ENUMERAL_TYPE:
+ case IDENTIFIER_NODE:
+ case INTEGER_TYPE:
+ case BOOLEAN_TYPE:
+ case REAL_TYPE:
+ case RECORD_TYPE:
+ case TEMPLATE_TYPE_PARM:
+ case TEMPLATE_TEMPLATE_PARM:
+ case BOUND_TEMPLATE_TEMPLATE_PARM:
+ case TREE_LIST:
+ case TYPE_DECL:
+ case TREE_VEC:
+ case UNION_TYPE:
+ case LANG_TYPE:
+ case VOID_TYPE:
+ case TYPENAME_TYPE:
+ case COMPLEX_TYPE:
+ case VECTOR_TYPE:
+ case TYPEOF_TYPE:
+ case UNDERLYING_TYPE:
+ case DECLTYPE_TYPE:
+ case TYPE_PACK_EXPANSION:
+ case FIXED_POINT_TYPE:
+ case NULLPTR_TYPE:
+ break;
+
+ default:
+ pp_unsupported_tree (pp, t);
+ case ERROR_MARK:
+ /* Don't mark it here, we should have already done in
+ dump_type_prefix. */
+ break;
+ }
+}
+
+static void
+dump_global_iord (cxx_pretty_printer *pp, tree t)
+{
+ const char *p = NULL;
+
+ if (DECL_GLOBAL_CTOR_P (t))
+ p = M_("(static initializers for %s)");
+ else if (DECL_GLOBAL_DTOR_P (t))
+ p = M_("(static destructors for %s)");
+ else
+ gcc_unreachable ();
+
+ pp_printf (pp, p, LOCATION_FILE (input_location));
+}
+
+static void
+dump_simple_decl (cxx_pretty_printer *pp, tree t, tree type, int flags)
+{
+ if (flags & TFF_DECL_SPECIFIERS)
+ {
+ if (VAR_P (t)
+ && DECL_DECLARED_CONSTEXPR_P (t))
+ pp_cxx_ws_string (pp, "constexpr");
+ dump_type_prefix (pp, type, flags & ~TFF_UNQUALIFIED_NAME);
+ pp_maybe_space (pp);
+ }
+ if (! (flags & TFF_UNQUALIFIED_NAME)
+ && TREE_CODE (t) != PARM_DECL
+ && (!DECL_INITIAL (t)
+ || TREE_CODE (DECL_INITIAL (t)) != TEMPLATE_PARM_INDEX))
+ dump_scope (pp, CP_DECL_CONTEXT (t), flags);
+ flags &= ~TFF_UNQUALIFIED_NAME;
+ if ((flags & TFF_DECL_SPECIFIERS)
+ && DECL_TEMPLATE_PARM_P (t)
+ && TEMPLATE_PARM_PARAMETER_PACK (DECL_INITIAL (t)))
+ pp_string (pp, "...");
+ if (DECL_NAME (t))
+ {
+ if (TREE_CODE (t) == FIELD_DECL && DECL_NORMAL_CAPTURE_P (t))
+ {
+ pp_less (pp);
+ pp_string (pp, IDENTIFIER_POINTER (DECL_NAME (t)) + 2);
+ pp_string (pp, " capture>");
+ }
+ else
+ dump_decl (pp, DECL_NAME (t), flags);
+ }
+ else
+ pp_string (pp, M_("<anonymous>"));
+ if (flags & TFF_DECL_SPECIFIERS)
+ dump_type_suffix (pp, type, flags);
+}
+
+/* Dump a human readable string for the decl T under control of FLAGS. */
+
+static void
+dump_decl (cxx_pretty_printer *pp, tree t, int flags)
+{
+ if (t == NULL_TREE)
+ return;
+
+ /* If doing Objective-C++, give Objective-C a chance to demangle
+ Objective-C method names. */
+ if (c_dialect_objc ())
+ {
+ const char *demangled = objc_maybe_printable_name (t, flags);
+ if (demangled)
+ {
+ pp_string (pp, demangled);
+ return;
+ }
+ }
+
+ switch (TREE_CODE (t))
+ {
+ case TYPE_DECL:
+ /* Don't say 'typedef class A' */
+ if (DECL_ARTIFICIAL (t) && !DECL_SELF_REFERENCE_P (t))
+ {
+ if ((flags & TFF_DECL_SPECIFIERS)
+ && TREE_CODE (TREE_TYPE (t)) == TEMPLATE_TYPE_PARM)
+ {
+ /* Say `class T' not just `T'. */
+ pp_cxx_ws_string (pp, "class");
+
+ /* Emit the `...' for a parameter pack. */
+ if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
+ pp_cxx_ws_string (pp, "...");
+ }
+
+ dump_type (pp, TREE_TYPE (t), flags);
+ break;
+ }
+ if (TYPE_DECL_ALIAS_P (t)
+ && (flags & TFF_DECL_SPECIFIERS
+ || flags & TFF_CLASS_KEY_OR_ENUM))
+ {
+ pp_cxx_ws_string (pp, "using");
+ dump_decl (pp, DECL_NAME (t), flags);
+ pp_cxx_whitespace (pp);
+ pp_cxx_ws_string (pp, "=");
+ pp_cxx_whitespace (pp);
+ dump_type (pp, DECL_ORIGINAL_TYPE (t), flags);
+ break;
+ }
+ if ((flags & TFF_DECL_SPECIFIERS)
+ && !DECL_SELF_REFERENCE_P (t))
+ pp_cxx_ws_string (pp, "typedef");
+ dump_simple_decl (pp, t, DECL_ORIGINAL_TYPE (t)
+ ? DECL_ORIGINAL_TYPE (t) : TREE_TYPE (t),
+ flags);
+ break;
+
+ case VAR_DECL:
+ if (DECL_NAME (t) && VTABLE_NAME_P (DECL_NAME (t)))
+ {
+ pp_string (pp, M_("vtable for "));
+ gcc_assert (TYPE_P (DECL_CONTEXT (t)));
+ dump_type (pp, DECL_CONTEXT (t), flags);
+ break;
+ }
+ /* Else fall through. */
+ case FIELD_DECL:
+ case PARM_DECL:
+ dump_simple_decl (pp, t, TREE_TYPE (t), flags);
+ break;
+
+ case RESULT_DECL:
+ pp_string (pp, M_("<return value> "));
+ dump_simple_decl (pp, t, TREE_TYPE (t), flags);
+ break;
+
+ case NAMESPACE_DECL:
+ if (flags & TFF_DECL_SPECIFIERS)
+ pp->declaration (t);
+ else
+ {
+ if (! (flags & TFF_UNQUALIFIED_NAME))
+ dump_scope (pp, CP_DECL_CONTEXT (t), flags);
+ flags &= ~TFF_UNQUALIFIED_NAME;
+ if (DECL_NAME (t) == NULL_TREE)
+ {
+ if (!(pp->flags & pp_c_flag_gnu_v3))
+ pp_cxx_ws_string (pp, M_("{anonymous}"));
+ else
+ pp_cxx_ws_string (pp, M_("(anonymous namespace)"));
+ }
+ else
+ pp_cxx_tree_identifier (pp, DECL_NAME (t));
+ }
+ break;
+
+ case SCOPE_REF:
+ dump_type (pp, TREE_OPERAND (t, 0), flags);
+ pp_colon_colon (pp);
+ dump_decl (pp, TREE_OPERAND (t, 1), TFF_UNQUALIFIED_NAME);
+ break;
+
+ case ARRAY_REF:
+ dump_decl (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_left_bracket (pp);
+ dump_decl (pp, TREE_OPERAND (t, 1), flags);
+ pp_cxx_right_bracket (pp);
+ break;
+
+ case ARRAY_NOTATION_REF:
+ dump_decl (pp, ARRAY_NOTATION_ARRAY (t), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_left_bracket (pp);
+ dump_decl (pp, ARRAY_NOTATION_START (t), flags | TFF_EXPR_IN_PARENS);
+ pp_colon (pp);
+ dump_decl (pp, ARRAY_NOTATION_LENGTH (t), flags | TFF_EXPR_IN_PARENS);
+ pp_colon (pp);
+ dump_decl (pp, ARRAY_NOTATION_STRIDE (t), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_right_bracket (pp);
+ break;
+
+ /* So that we can do dump_decl on an aggr type. */
+ case RECORD_TYPE:
+ case UNION_TYPE:
+ case ENUMERAL_TYPE:
+ dump_type (pp, t, flags);
+ break;
+
+ case BIT_NOT_EXPR:
+ /* This is a pseudo destructor call which has not been folded into
+ a PSEUDO_DTOR_EXPR yet. */
+ pp_cxx_complement (pp);
+ dump_type (pp, TREE_OPERAND (t, 0), flags);
+ break;
+
+ case TYPE_EXPR:
+ gcc_unreachable ();
+ break;
+
+ /* These special cases are duplicated here so that other functions
+ can feed identifiers to error and get them demangled properly. */
+ case IDENTIFIER_NODE:
+ if (IDENTIFIER_TYPENAME_P (t))
+ {
+ pp_cxx_ws_string (pp, "operator");
+ /* Not exactly IDENTIFIER_TYPE_VALUE. */
+ dump_type (pp, TREE_TYPE (t), flags);
+ break;
+ }
+ else
+ pp_cxx_tree_identifier (pp, t);
+ break;
+
+ case OVERLOAD:
+ if (OVL_CHAIN (t))
+ {
+ t = OVL_CURRENT (t);
+ if (DECL_CLASS_SCOPE_P (t))
+ {
+ dump_type (pp, DECL_CONTEXT (t), flags);
+ pp_cxx_colon_colon (pp);
+ }
+ else if (!DECL_FILE_SCOPE_P (t))
+ {
+ dump_decl (pp, DECL_CONTEXT (t), flags);
+ pp_cxx_colon_colon (pp);
+ }
+ dump_decl (pp, DECL_NAME (t), flags);
+ break;
+ }
+
+ /* If there's only one function, just treat it like an ordinary
+ FUNCTION_DECL. */
+ t = OVL_CURRENT (t);
+ /* Fall through. */
+
+ case FUNCTION_DECL:
+ if (! DECL_LANG_SPECIFIC (t))
+ pp_string (pp, M_("<built-in>"));
+ else if (DECL_GLOBAL_CTOR_P (t) || DECL_GLOBAL_DTOR_P (t))
+ dump_global_iord (pp, t);
+ else
+ dump_function_decl (pp, t, flags);
+ break;
+
+ case TEMPLATE_DECL:
+ dump_template_decl (pp, t, flags);
+ break;
+
+ case TEMPLATE_ID_EXPR:
+ {
+ tree name = TREE_OPERAND (t, 0);
+ tree args = TREE_OPERAND (t, 1);
+
+ if (is_overloaded_fn (name))
+ name = DECL_NAME (get_first_fn (name));
+ dump_decl (pp, name, flags);
+ pp_cxx_begin_template_argument_list (pp);
+ if (args == error_mark_node)
+ pp_string (pp, M_("<template arguments error>"));
+ else if (args)
+ dump_template_argument_list (pp, args, flags);
+ pp_cxx_end_template_argument_list (pp);
+ }
+ break;
+
+ case LABEL_DECL:
+ pp_cxx_tree_identifier (pp, DECL_NAME (t));
+ break;
+
+ case CONST_DECL:
+ if ((TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == ENUMERAL_TYPE)
+ || (DECL_INITIAL (t) &&
+ TREE_CODE (DECL_INITIAL (t)) == TEMPLATE_PARM_INDEX))
+ dump_simple_decl (pp, t, TREE_TYPE (t), flags);
+ else if (DECL_NAME (t))
+ dump_decl (pp, DECL_NAME (t), flags);
+ else if (DECL_INITIAL (t))
+ dump_expr (pp, DECL_INITIAL (t), flags | TFF_EXPR_IN_PARENS);
+ else
+ pp_string (pp, M_("<enumerator>"));
+ break;
+
+ case USING_DECL:
+ pp_cxx_ws_string (pp, "using");
+ dump_type (pp, USING_DECL_SCOPE (t), flags);
+ pp_cxx_colon_colon (pp);
+ dump_decl (pp, DECL_NAME (t), flags);
+ break;
+
+ case STATIC_ASSERT:
+ pp->declaration (t);
+ break;
+
+ case BASELINK:
+ dump_decl (pp, BASELINK_FUNCTIONS (t), flags);
+ break;
+
+ case NON_DEPENDENT_EXPR:
+ dump_expr (pp, t, flags);
+ break;
+
+ case TEMPLATE_TYPE_PARM:
+ if (flags & TFF_DECL_SPECIFIERS)
+ pp->declaration (t);
+ else
+ pp->type_id (t);
+ break;
+
+ case UNBOUND_CLASS_TEMPLATE:
+ case TYPE_PACK_EXPANSION:
+ case TREE_BINFO:
+ dump_type (pp, t, flags);
+ break;
+
+ default:
+ pp_unsupported_tree (pp, t);
+ /* Fall through to error. */
+
+ case ERROR_MARK:
+ pp_string (pp, M_("<declaration error>"));
+ break;
+ }
+}
+
+/* Dump a template declaration T under control of FLAGS. This means the
+ 'template <...> leaders plus the 'class X' or 'void fn(...)' part. */
+
+static void
+dump_template_decl (cxx_pretty_printer *pp, tree t, int flags)
+{
+ tree orig_parms = DECL_TEMPLATE_PARMS (t);
+ tree parms;
+ int i;
+
+ if (flags & TFF_TEMPLATE_HEADER)
+ {
+ for (parms = orig_parms = nreverse (orig_parms);
+ parms;
+ parms = TREE_CHAIN (parms))
+ {
+ tree inner_parms = INNERMOST_TEMPLATE_PARMS (parms);
+ int len = TREE_VEC_LENGTH (inner_parms);
+
+ pp_cxx_ws_string (pp, "template");
+ pp_cxx_begin_template_argument_list (pp);
+
+ /* If we've shown the template prefix, we'd better show the
+ parameters' and decl's type too. */
+ flags |= TFF_DECL_SPECIFIERS;
+
+ for (i = 0; i < len; i++)
+ {
+ if (i)
+ pp_separate_with_comma (pp);
+ dump_template_parameter (pp, TREE_VEC_ELT (inner_parms, i),
+ flags);
+ }
+ pp_cxx_end_template_argument_list (pp);
+ pp_cxx_whitespace (pp);
+ }
+ nreverse(orig_parms);
+
+ if (DECL_TEMPLATE_TEMPLATE_PARM_P (t))
+ {
+ /* Say `template<arg> class TT' not just `template<arg> TT'. */
+ pp_cxx_ws_string (pp, "class");
+
+ /* If this is a parameter pack, print the ellipsis. */
+ if (TEMPLATE_TYPE_PARAMETER_PACK (TREE_TYPE (t)))
+ pp_cxx_ws_string (pp, "...");
+ }
+ }
+
+ if (DECL_CLASS_TEMPLATE_P (t))
+ dump_type (pp, TREE_TYPE (t),
+ ((flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
+ | (flags & TFF_DECL_SPECIFIERS ? TFF_CLASS_KEY_OR_ENUM : 0)));
+ else if (DECL_TEMPLATE_RESULT (t)
+ && (VAR_P (DECL_TEMPLATE_RESULT (t))
+ /* Alias template. */
+ || DECL_TYPE_TEMPLATE_P (t)))
+ dump_decl (pp, DECL_TEMPLATE_RESULT (t), flags | TFF_TEMPLATE_NAME);
+ else
+ {
+ gcc_assert (TREE_TYPE (t));
+ switch (NEXT_CODE (t))
+ {
+ case METHOD_TYPE:
+ case FUNCTION_TYPE:
+ dump_function_decl (pp, t, flags | TFF_TEMPLATE_NAME);
+ break;
+ default:
+ /* This case can occur with some invalid code. */
+ dump_type (pp, TREE_TYPE (t),
+ (flags & ~TFF_CLASS_KEY_OR_ENUM) | TFF_TEMPLATE_NAME
+ | (flags & TFF_DECL_SPECIFIERS
+ ? TFF_CLASS_KEY_OR_ENUM : 0));
+ }
+ }
+}
+
+/* find_typenames looks through the type of the function template T
+ and returns a vec containing any typedefs, decltypes or TYPENAME_TYPEs
+ it finds. */
+
+struct find_typenames_t
+{
+ struct pointer_set_t *p_set;
+ vec<tree, va_gc> *typenames;
+};
+
+static tree
+find_typenames_r (tree *tp, int *walk_subtrees, void *data)
+{
+ struct find_typenames_t *d = (struct find_typenames_t *)data;
+ tree mv = NULL_TREE;
+
+ if (TYPE_P (*tp) && is_typedef_decl (TYPE_NAME (*tp)))
+ /* Add the type of the typedef without any additional cv-quals. */
+ mv = TREE_TYPE (TYPE_NAME (*tp));
+ else if (TREE_CODE (*tp) == TYPENAME_TYPE
+ || TREE_CODE (*tp) == DECLTYPE_TYPE)
+ /* Add the typename without any cv-qualifiers. */
+ mv = TYPE_MAIN_VARIANT (*tp);
+
+ if (TREE_CODE (*tp) == TYPE_PACK_EXPANSION)
+ {
+ /* Don't mess with parameter packs since we don't remember
+ the pack expansion context for a particular typename. */
+ *walk_subtrees = false;
+ return NULL_TREE;
+ }
+
+ if (mv && (mv == *tp || !pointer_set_insert (d->p_set, mv)))
+ vec_safe_push (d->typenames, mv);
+
+ /* Search into class template arguments, which cp_walk_subtrees
+ doesn't do. */
+ if (CLASS_TYPE_P (*tp) && CLASSTYPE_TEMPLATE_INFO (*tp))
+ cp_walk_tree (&CLASSTYPE_TI_ARGS (*tp), find_typenames_r,
+ data, d->p_set);
+
+ return NULL_TREE;
+}
+
+static vec<tree, va_gc> *
+find_typenames (tree t)
+{
+ struct find_typenames_t ft;
+ ft.p_set = pointer_set_create ();
+ ft.typenames = NULL;
+ cp_walk_tree (&TREE_TYPE (DECL_TEMPLATE_RESULT (t)),
+ find_typenames_r, &ft, ft.p_set);
+ pointer_set_destroy (ft.p_set);
+ return ft.typenames;
+}
+
+/* Output the "[with ...]" clause for a template instantiation T iff
+ TEMPLATE_PARMS, TEMPLATE_ARGS and FLAGS are suitable. T may be NULL if
+ formatting a deduction/substitution diagnostic rather than an
+ instantiation. */
+
+static void
+dump_substitution (cxx_pretty_printer *pp,
+ tree t, tree template_parms, tree template_args,
+ int flags)
+{
+ if (template_parms != NULL_TREE && template_args != NULL_TREE
+ && !(flags & TFF_NO_TEMPLATE_BINDINGS))
+ {
+ vec<tree, va_gc> *typenames = t ? find_typenames (t) : NULL;
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_bracket (pp);
+ pp->translate_string ("with");
+ pp_cxx_whitespace (pp);
+ dump_template_bindings (pp, template_parms, template_args, typenames);
+ pp_cxx_right_bracket (pp);
+ }
+}
+
+/* Dump the lambda function FN including its 'mutable' qualifier and any
+ template bindings. */
+
+static void
+dump_lambda_function (cxx_pretty_printer *pp,
+ tree fn, tree template_parms, tree template_args,
+ int flags)
+{
+ /* A lambda's signature is essentially its "type". */
+ dump_type (pp, DECL_CONTEXT (fn), flags);
+ if (!(TYPE_QUALS (class_of_this_parm (TREE_TYPE (fn))) & TYPE_QUAL_CONST))
+ {
+ pp->padding = pp_before;
+ pp_c_ws_string (pp, "mutable");
+ }
+ dump_substitution (pp, fn, template_parms, template_args, flags);
+}
+
+/* Pretty print a function decl. There are several ways we want to print a
+ function declaration. The TFF_ bits in FLAGS tells us how to behave.
+ As error can only apply the '#' flag once to give 0 and 1 for V, there
+ is %D which doesn't print the throw specs, and %F which does. */
+
+static void
+dump_function_decl (cxx_pretty_printer *pp, tree t, int flags)
+{
+ tree fntype;
+ tree parmtypes;
+ tree cname = NULL_TREE;
+ tree template_args = NULL_TREE;
+ tree template_parms = NULL_TREE;
+ int show_return = flags & TFF_RETURN_TYPE || flags & TFF_DECL_SPECIFIERS;
+ int do_outer_scope = ! (flags & TFF_UNQUALIFIED_NAME);
+ tree exceptions;
+
+ flags &= ~(TFF_UNQUALIFIED_NAME | TFF_TEMPLATE_NAME);
+ if (TREE_CODE (t) == TEMPLATE_DECL)
+ t = DECL_TEMPLATE_RESULT (t);
+
+ /* Save the exceptions, in case t is a specialization and we are
+ emitting an error about incompatible specifications. */
+ exceptions = TYPE_RAISES_EXCEPTIONS (TREE_TYPE (t));
+
+ /* Pretty print template instantiations only. */
+ if (DECL_USE_TEMPLATE (t) && DECL_TEMPLATE_INFO (t)
+ && flag_pretty_templates)
+ {
+ tree tmpl;
+
+ template_args = DECL_TI_ARGS (t);
+ tmpl = most_general_template (t);
+ if (tmpl && TREE_CODE (tmpl) == TEMPLATE_DECL)
+ {
+ template_parms = DECL_TEMPLATE_PARMS (tmpl);
+ t = tmpl;
+ }
+ }
+
+ if (DECL_NAME (t) && LAMBDA_FUNCTION_P (t))
+ return dump_lambda_function (pp, t, template_parms, template_args, flags);
+
+ fntype = TREE_TYPE (t);
+ parmtypes = FUNCTION_FIRST_USER_PARMTYPE (t);
+
+ if (DECL_CLASS_SCOPE_P (t))
+ cname = DECL_CONTEXT (t);
+ /* This is for partially instantiated template methods. */
+ else if (TREE_CODE (fntype) == METHOD_TYPE)
+ cname = TREE_TYPE (TREE_VALUE (parmtypes));
+
+ if (flags & TFF_DECL_SPECIFIERS)
+ {
+ if (DECL_STATIC_FUNCTION_P (t))
+ pp_cxx_ws_string (pp, "static");
+ else if (DECL_VIRTUAL_P (t))
+ pp_cxx_ws_string (pp, "virtual");
+
+ if (DECL_DECLARED_CONSTEXPR_P (t))
+ pp_cxx_ws_string (pp, "constexpr");
+ }
+
+ /* Print the return type? */
+ if (show_return)
+ show_return = !DECL_CONV_FN_P (t) && !DECL_CONSTRUCTOR_P (t)
+ && !DECL_DESTRUCTOR_P (t);
+ if (show_return)
+ {
+ tree ret = fndecl_declared_return_type (t);
+ dump_type_prefix (pp, ret, flags);
+ }
+
+ /* Print the function name. */
+ if (!do_outer_scope)
+ /* Nothing. */;
+ else if (cname)
+ {
+ dump_type (pp, cname, flags);
+ pp_cxx_colon_colon (pp);
+ }
+ else
+ dump_scope (pp, CP_DECL_CONTEXT (t), flags);
+
+ dump_function_name (pp, t, flags);
+
+ if (!(flags & TFF_NO_FUNCTION_ARGUMENTS))
+ {
+ dump_parameters (pp, parmtypes, flags);
+
+ if (TREE_CODE (fntype) == METHOD_TYPE)
+ {
+ pp->padding = pp_before;
+ pp_cxx_cv_qualifier_seq (pp, class_of_this_parm (fntype));
+ dump_ref_qualifier (pp, fntype, flags);
+ }
+
+ if (flags & TFF_EXCEPTION_SPECIFICATION)
+ {
+ pp->padding = pp_before;
+ dump_exception_spec (pp, exceptions, flags);
+ }
+
+ if (show_return)
+ dump_type_suffix (pp, TREE_TYPE (fntype), flags);
+
+ dump_substitution (pp, t, template_parms, template_args, flags);
+ }
+ else if (template_args)
+ {
+ bool need_comma = false;
+ int i;
+ pp_cxx_begin_template_argument_list (pp);
+ template_args = INNERMOST_TEMPLATE_ARGS (template_args);
+ for (i = 0; i < TREE_VEC_LENGTH (template_args); ++i)
+ {
+ tree arg = TREE_VEC_ELT (template_args, i);
+ if (need_comma)
+ pp_separate_with_comma (pp);
+ if (ARGUMENT_PACK_P (arg))
+ pp_cxx_left_brace (pp);
+ dump_template_argument (pp, arg, TFF_PLAIN_IDENTIFIER);
+ if (ARGUMENT_PACK_P (arg))
+ pp_cxx_right_brace (pp);
+ need_comma = true;
+ }
+ pp_cxx_end_template_argument_list (pp);
+ }
+}
+
+/* Print a parameter list. If this is for a member function, the
+ member object ptr (and any other hidden args) should have
+ already been removed. */
+
+static void
+dump_parameters (cxx_pretty_printer *pp, tree parmtypes, int flags)
+{
+ int first = 1;
+ flags &= ~TFF_SCOPE;
+ pp_cxx_left_paren (pp);
+
+ for (first = 1; parmtypes != void_list_node;
+ parmtypes = TREE_CHAIN (parmtypes))
+ {
+ if (!first)
+ pp_separate_with_comma (pp);
+ first = 0;
+ if (!parmtypes)
+ {
+ pp_cxx_ws_string (pp, "...");
+ break;
+ }
+
+ dump_type (pp, TREE_VALUE (parmtypes), flags);
+
+ if ((flags & TFF_FUNCTION_DEFAULT_ARGUMENTS) && TREE_PURPOSE (parmtypes))
+ {
+ pp_cxx_whitespace (pp);
+ pp_equal (pp);
+ pp_cxx_whitespace (pp);
+ dump_expr (pp, TREE_PURPOSE (parmtypes), flags | TFF_EXPR_IN_PARENS);
+ }
+ }
+
+ pp_cxx_right_paren (pp);
+}
+
+/* Print ref-qualifier of a FUNCTION_TYPE or METHOD_TYPE. FLAGS are ignored. */
+
+static void
+dump_ref_qualifier (cxx_pretty_printer *pp, tree t, int flags ATTRIBUTE_UNUSED)
+{
+ if (FUNCTION_REF_QUALIFIED (t))
+ {
+ pp->padding = pp_before;
+ if (FUNCTION_RVALUE_QUALIFIED (t))
+ pp_cxx_ws_string (pp, "&&");
+ else
+ pp_cxx_ws_string (pp, "&");
+ }
+}
+
+/* Print an exception specification. T is the exception specification. */
+
+static void
+dump_exception_spec (cxx_pretty_printer *pp, tree t, int flags)
+{
+ if (t && TREE_PURPOSE (t))
+ {
+ pp_cxx_ws_string (pp, "noexcept");
+ if (!integer_onep (TREE_PURPOSE (t)))
+ {
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ if (DEFERRED_NOEXCEPT_SPEC_P (t))
+ pp_cxx_ws_string (pp, "<uninstantiated>");
+ else
+ dump_expr (pp, TREE_PURPOSE (t), flags);
+ pp_cxx_right_paren (pp);
+ }
+ }
+ else if (t)
+ {
+ pp_cxx_ws_string (pp, "throw");
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ if (TREE_VALUE (t) != NULL_TREE)
+ while (1)
+ {
+ dump_type (pp, TREE_VALUE (t), flags);
+ t = TREE_CHAIN (t);
+ if (!t)
+ break;
+ pp_separate_with_comma (pp);
+ }
+ pp_cxx_right_paren (pp);
+ }
+}
+
+/* Handle the function name for a FUNCTION_DECL node, grokking operators
+ and destructors properly. */
+
+static void
+dump_function_name (cxx_pretty_printer *pp, tree t, int flags)
+{
+ tree name = DECL_NAME (t);
+
+ /* We can get here with a decl that was synthesized by language-
+ independent machinery (e.g. coverage.c) in which case it won't
+ have a lang_specific structure attached and DECL_CONSTRUCTOR_P
+ will crash. In this case it is safe just to print out the
+ literal name. */
+ if (!DECL_LANG_SPECIFIC (t))
+ {
+ pp_cxx_tree_identifier (pp, name);
+ return;
+ }
+
+ if (TREE_CODE (t) == TEMPLATE_DECL)
+ t = DECL_TEMPLATE_RESULT (t);
+
+ /* Don't let the user see __comp_ctor et al. */
+ if (DECL_CONSTRUCTOR_P (t)
+ || DECL_DESTRUCTOR_P (t))
+ {
+ if (LAMBDA_TYPE_P (DECL_CONTEXT (t)))
+ name = get_identifier ("<lambda>");
+ else if (TYPE_ANONYMOUS_P (DECL_CONTEXT (t)))
+ name = get_identifier ("<constructor>");
+ else
+ name = constructor_name (DECL_CONTEXT (t));
+ }
+
+ if (DECL_DESTRUCTOR_P (t))
+ {
+ pp_cxx_complement (pp);
+ dump_decl (pp, name, TFF_PLAIN_IDENTIFIER);
+ }
+ else if (DECL_CONV_FN_P (t))
+ {
+ /* This cannot use the hack that the operator's return
+ type is stashed off of its name because it may be
+ used for error reporting. In the case of conflicting
+ declarations, both will have the same name, yet
+ the types will be different, hence the TREE_TYPE field
+ of the first name will be clobbered by the second. */
+ pp_cxx_ws_string (pp, "operator");
+ dump_type (pp, TREE_TYPE (TREE_TYPE (t)), flags);
+ }
+ else if (name && IDENTIFIER_OPNAME_P (name))
+ pp_cxx_tree_identifier (pp, name);
+ else if (name && UDLIT_OPER_P (name))
+ pp_cxx_tree_identifier (pp, name);
+ else
+ dump_decl (pp, name, flags);
+
+ if (DECL_TEMPLATE_INFO (t)
+ && !DECL_FRIEND_PSEUDO_TEMPLATE_INSTANTIATION (t)
+ && (TREE_CODE (DECL_TI_TEMPLATE (t)) != TEMPLATE_DECL
+ || PRIMARY_TEMPLATE_P (DECL_TI_TEMPLATE (t))))
+ dump_template_parms (pp, DECL_TEMPLATE_INFO (t), !DECL_USE_TEMPLATE (t),
+ flags);
+}
+
+/* Dump the template parameters from the template info INFO under control of
+ FLAGS. PRIMARY indicates whether this is a primary template decl, or
+ specialization (partial or complete). For partial specializations we show
+ the specialized parameter values. For a primary template we show no
+ decoration. */
+
+static void
+dump_template_parms (cxx_pretty_printer *pp, tree info,
+ int primary, int flags)
+{
+ tree args = info ? TI_ARGS (info) : NULL_TREE;
+
+ if (primary && flags & TFF_TEMPLATE_NAME)
+ return;
+ flags &= ~(TFF_CLASS_KEY_OR_ENUM | TFF_TEMPLATE_NAME);
+ pp_cxx_begin_template_argument_list (pp);
+
+ /* Be careful only to print things when we have them, so as not
+ to crash producing error messages. */
+ if (args && !primary)
+ {
+ int len, ix;
+ len = get_non_default_template_args_count (args, flags);
+
+ args = INNERMOST_TEMPLATE_ARGS (args);
+ for (ix = 0; ix != len; ix++)
+ {
+ tree arg = TREE_VEC_ELT (args, ix);
+
+ /* Only print a comma if we know there is an argument coming. In
+ the case of an empty template argument pack, no actual
+ argument will be printed. */
+ if (ix
+ && (!ARGUMENT_PACK_P (arg)
+ || TREE_VEC_LENGTH (ARGUMENT_PACK_ARGS (arg)) > 0))
+ pp_separate_with_comma (pp);
+
+ if (!arg)
+ pp_string (pp, M_("<template parameter error>"));
+ else
+ dump_template_argument (pp, arg, flags);
+ }
+ }
+ else if (primary)
+ {
+ tree tpl = TI_TEMPLATE (info);
+ tree parms = DECL_TEMPLATE_PARMS (tpl);
+ int len, ix;
+
+ parms = TREE_CODE (parms) == TREE_LIST ? TREE_VALUE (parms) : NULL_TREE;
+ len = parms ? TREE_VEC_LENGTH (parms) : 0;
+
+ for (ix = 0; ix != len; ix++)
+ {
+ tree parm;
+
+ if (TREE_VEC_ELT (parms, ix) == error_mark_node)
+ {
+ pp_string (pp, M_("<template parameter error>"));
+ continue;
+ }
+
+ parm = TREE_VALUE (TREE_VEC_ELT (parms, ix));
+
+ if (ix)
+ pp_separate_with_comma (pp);
+
+ dump_decl (pp, parm, flags & ~TFF_DECL_SPECIFIERS);
+ }
+ }
+ pp_cxx_end_template_argument_list (pp);
+}
+
+/* Print out the arguments of CALL_EXPR T as a parenthesized list using
+ flags FLAGS. Skip over the first argument if SKIPFIRST is true. */
+
+static void
+dump_call_expr_args (cxx_pretty_printer *pp, tree t, int flags, bool skipfirst)
+{
+ tree arg;
+ call_expr_arg_iterator iter;
+
+ pp_cxx_left_paren (pp);
+ FOR_EACH_CALL_EXPR_ARG (arg, iter, t)
+ {
+ if (skipfirst)
+ skipfirst = false;
+ else
+ {
+ dump_expr (pp, arg, flags | TFF_EXPR_IN_PARENS);
+ if (more_call_expr_args_p (&iter))
+ pp_separate_with_comma (pp);
+ }
+ }
+ pp_cxx_right_paren (pp);
+}
+
+/* Print out the arguments of AGGR_INIT_EXPR T as a parenthesized list
+ using flags FLAGS. Skip over the first argument if SKIPFIRST is
+ true. */
+
+static void
+dump_aggr_init_expr_args (cxx_pretty_printer *pp, tree t, int flags,
+ bool skipfirst)
+{
+ tree arg;
+ aggr_init_expr_arg_iterator iter;
+
+ pp_cxx_left_paren (pp);
+ FOR_EACH_AGGR_INIT_EXPR_ARG (arg, iter, t)
+ {
+ if (skipfirst)
+ skipfirst = false;
+ else
+ {
+ dump_expr (pp, arg, flags | TFF_EXPR_IN_PARENS);
+ if (more_aggr_init_expr_args_p (&iter))
+ pp_separate_with_comma (pp);
+ }
+ }
+ pp_cxx_right_paren (pp);
+}
+
+/* Print out a list of initializers (subr of dump_expr). */
+
+static void
+dump_expr_list (cxx_pretty_printer *pp, tree l, int flags)
+{
+ while (l)
+ {
+ dump_expr (pp, TREE_VALUE (l), flags | TFF_EXPR_IN_PARENS);
+ l = TREE_CHAIN (l);
+ if (l)
+ pp_separate_with_comma (pp);
+ }
+}
+
+/* Print out a vector of initializers (subr of dump_expr). */
+
+static void
+dump_expr_init_vec (cxx_pretty_printer *pp, vec<constructor_elt, va_gc> *v,
+ int flags)
+{
+ unsigned HOST_WIDE_INT idx;
+ tree value;
+
+ FOR_EACH_CONSTRUCTOR_VALUE (v, idx, value)
+ {
+ dump_expr (pp, value, flags | TFF_EXPR_IN_PARENS);
+ if (idx != v->length () - 1)
+ pp_separate_with_comma (pp);
+ }
+}
+
+
+/* We've gotten an indirect REFERENCE (an OBJ_TYPE_REF) to a virtual
+ function. Resolve it to a close relative -- in the sense of static
+ type -- variant being overridden. That is close to what was written in
+ the source code. Subroutine of dump_expr. */
+
+static tree
+resolve_virtual_fun_from_obj_type_ref (tree ref)
+{
+ tree obj_type = TREE_TYPE (OBJ_TYPE_REF_OBJECT (ref));
+ HOST_WIDE_INT index = tree_to_uhwi (OBJ_TYPE_REF_TOKEN (ref));
+ tree fun = BINFO_VIRTUALS (TYPE_BINFO (TREE_TYPE (obj_type)));
+ while (index)
+ {
+ fun = TREE_CHAIN (fun);
+ index -= (TARGET_VTABLE_USES_DESCRIPTORS
+ ? TARGET_VTABLE_USES_DESCRIPTORS : 1);
+ }
+
+ return BV_FN (fun);
+}
+
+/* Print out an expression E under control of FLAGS. */
+
+static void
+dump_expr (cxx_pretty_printer *pp, tree t, int flags)
+{
+ tree op;
+
+ if (t == 0)
+ return;
+
+ if (STATEMENT_CLASS_P (t))
+ {
+ pp_cxx_ws_string (pp, M_("<statement>"));
+ return;
+ }
+
+ switch (TREE_CODE (t))
+ {
+ case VAR_DECL:
+ case PARM_DECL:
+ case FIELD_DECL:
+ case CONST_DECL:
+ case FUNCTION_DECL:
+ case TEMPLATE_DECL:
+ case NAMESPACE_DECL:
+ case LABEL_DECL:
+ case OVERLOAD:
+ case TYPE_DECL:
+ case IDENTIFIER_NODE:
+ dump_decl (pp, t, ((flags & ~(TFF_DECL_SPECIFIERS|TFF_RETURN_TYPE
+ |TFF_TEMPLATE_HEADER))
+ | TFF_NO_FUNCTION_ARGUMENTS));
+ break;
+
+ case SSA_NAME:
+ if (SSA_NAME_VAR (t)
+ && !DECL_ARTIFICIAL (SSA_NAME_VAR (t)))
+ dump_expr (pp, SSA_NAME_VAR (t), flags);
+ else
+ pp_cxx_ws_string (pp, M_("<unknown>"));
+ break;
+
+ case INTEGER_CST:
+ case REAL_CST:
+ case STRING_CST:
+ case COMPLEX_CST:
+ pp->constant (t);
+ break;
+
+ case USERDEF_LITERAL:
+ pp_cxx_userdef_literal (pp, t);
+ break;
+
+ case THROW_EXPR:
+ /* While waiting for caret diagnostics, avoid printing
+ __cxa_allocate_exception, __cxa_throw, and the like. */
+ pp_cxx_ws_string (pp, M_("<throw-expression>"));
+ break;
+
+ case PTRMEM_CST:
+ pp_ampersand (pp);
+ dump_type (pp, PTRMEM_CST_CLASS (t), flags);
+ pp_cxx_colon_colon (pp);
+ pp_cxx_tree_identifier (pp, DECL_NAME (PTRMEM_CST_MEMBER (t)));
+ break;
+
+ case COMPOUND_EXPR:
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ pp_separate_with_comma (pp);
+ dump_expr (pp, TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case COND_EXPR:
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ pp_string (pp, " ? ");
+ dump_expr (pp, TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
+ pp_string (pp, " : ");
+ dump_expr (pp, TREE_OPERAND (t, 2), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case SAVE_EXPR:
+ if (TREE_HAS_CONSTRUCTOR (t))
+ {
+ pp_cxx_ws_string (pp, "new");
+ pp_cxx_whitespace (pp);
+ dump_type (pp, TREE_TYPE (TREE_TYPE (t)), flags);
+ }
+ else
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ break;
+
+ case AGGR_INIT_EXPR:
+ {
+ tree fn = NULL_TREE;
+
+ if (TREE_CODE (AGGR_INIT_EXPR_FN (t)) == ADDR_EXPR)
+ fn = TREE_OPERAND (AGGR_INIT_EXPR_FN (t), 0);
+
+ if (fn && TREE_CODE (fn) == FUNCTION_DECL)
+ {
+ if (DECL_CONSTRUCTOR_P (fn))
+ dump_type (pp, DECL_CONTEXT (fn), flags);
+ else
+ dump_decl (pp, fn, 0);
+ }
+ else
+ dump_expr (pp, AGGR_INIT_EXPR_FN (t), 0);
+ }
+ dump_aggr_init_expr_args (pp, t, flags, true);
+ break;
+
+ case CALL_EXPR:
+ {
+ tree fn = CALL_EXPR_FN (t);
+ bool skipfirst = false;
+
+ if (TREE_CODE (fn) == ADDR_EXPR)
+ fn = TREE_OPERAND (fn, 0);
+
+ /* Nobody is interested in seeing the guts of vcalls. */
+ if (TREE_CODE (fn) == OBJ_TYPE_REF)
+ fn = resolve_virtual_fun_from_obj_type_ref (fn);
+
+ if (TREE_TYPE (fn) != NULL_TREE
+ && NEXT_CODE (fn) == METHOD_TYPE
+ && call_expr_nargs (t))
+ {
+ tree ob = CALL_EXPR_ARG (t, 0);
+ if (TREE_CODE (ob) == ADDR_EXPR)
+ {
+ dump_expr (pp, TREE_OPERAND (ob, 0),
+ flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_dot (pp);
+ }
+ else if (TREE_CODE (ob) != PARM_DECL
+ || strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this"))
+ {
+ dump_expr (pp, ob, flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_arrow (pp);
+ }
+ skipfirst = true;
+ }
+ if (flag_sanitize & SANITIZE_UNDEFINED
+ && is_ubsan_builtin_p (fn))
+ {
+ pp_string (cxx_pp, M_("<ubsan routine call>"));
+ break;
+ }
+ dump_expr (pp, fn, flags | TFF_EXPR_IN_PARENS);
+ dump_call_expr_args (pp, t, flags, skipfirst);
+ }
+ break;
+
+ case TARGET_EXPR:
+ /* Note that this only works for G++ target exprs. If somebody
+ builds a general TARGET_EXPR, there's no way to represent that
+ it initializes anything other that the parameter slot for the
+ default argument. Note we may have cleared out the first
+ operand in expand_expr, so don't go killing ourselves. */
+ if (TREE_OPERAND (t, 1))
+ dump_expr (pp, TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
+ break;
+
+ case POINTER_PLUS_EXPR:
+ dump_binary_op (pp, "+", t, flags);
+ break;
+
+ case INIT_EXPR:
+ case MODIFY_EXPR:
+ dump_binary_op (pp, assignment_operator_name_info[NOP_EXPR].name,
+ t, flags);
+ break;
+
+ case PLUS_EXPR:
+ case MINUS_EXPR:
+ case MULT_EXPR:
+ case TRUNC_DIV_EXPR:
+ case TRUNC_MOD_EXPR:
+ case MIN_EXPR:
+ case MAX_EXPR:
+ case LSHIFT_EXPR:
+ case RSHIFT_EXPR:
+ case BIT_IOR_EXPR:
+ case BIT_XOR_EXPR:
+ case BIT_AND_EXPR:
+ case TRUTH_ANDIF_EXPR:
+ case TRUTH_ORIF_EXPR:
+ case LT_EXPR:
+ case LE_EXPR:
+ case GT_EXPR:
+ case GE_EXPR:
+ case EQ_EXPR:
+ case NE_EXPR:
+ case EXACT_DIV_EXPR:
+ dump_binary_op (pp, operator_name_info[TREE_CODE (t)].name, t, flags);
+ break;
+
+ case CEIL_DIV_EXPR:
+ case FLOOR_DIV_EXPR:
+ case ROUND_DIV_EXPR:
+ case RDIV_EXPR:
+ dump_binary_op (pp, "/", t, flags);
+ break;
+
+ case CEIL_MOD_EXPR:
+ case FLOOR_MOD_EXPR:
+ case ROUND_MOD_EXPR:
+ dump_binary_op (pp, "%", t, flags);
+ break;
+
+ case COMPONENT_REF:
+ {
+ tree ob = TREE_OPERAND (t, 0);
+ if (INDIRECT_REF_P (ob))
+ {
+ ob = TREE_OPERAND (ob, 0);
+ if (TREE_CODE (ob) != PARM_DECL
+ || (DECL_NAME (ob)
+ && strcmp (IDENTIFIER_POINTER (DECL_NAME (ob)), "this")))
+ {
+ dump_expr (pp, ob, flags | TFF_EXPR_IN_PARENS);
+ if (TREE_CODE (TREE_TYPE (ob)) == REFERENCE_TYPE)
+ pp_cxx_dot (pp);
+ else
+ pp_cxx_arrow (pp);
+ }
+ }
+ else
+ {
+ dump_expr (pp, ob, flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_dot (pp);
+ }
+ dump_expr (pp, TREE_OPERAND (t, 1), flags & ~TFF_EXPR_IN_PARENS);
+ }
+ break;
+
+ case ARRAY_REF:
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_left_bracket (pp);
+ dump_expr (pp, TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_right_bracket (pp);
+ break;
+
+ case ARRAY_NOTATION_REF:
+ dump_expr (pp, ARRAY_NOTATION_ARRAY (t), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_left_bracket (pp);
+ dump_expr (pp, ARRAY_NOTATION_START (t), flags | TFF_EXPR_IN_PARENS);
+ pp_colon (pp);
+ dump_expr (pp, ARRAY_NOTATION_LENGTH (t), flags | TFF_EXPR_IN_PARENS);
+ pp_colon (pp);
+ dump_expr (pp, ARRAY_NOTATION_STRIDE (t), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_right_bracket (pp);
+ break;
+
+ case UNARY_PLUS_EXPR:
+ dump_unary_op (pp, "+", t, flags);
+ break;
+
+ case ADDR_EXPR:
+ if (TREE_CODE (TREE_OPERAND (t, 0)) == FUNCTION_DECL
+ || TREE_CODE (TREE_OPERAND (t, 0)) == STRING_CST
+ /* An ADDR_EXPR can have reference type. In that case, we
+ shouldn't print the `&' doing so indicates to the user
+ that the expression has pointer type. */
+ || (TREE_TYPE (t)
+ && TREE_CODE (TREE_TYPE (t)) == REFERENCE_TYPE))
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ else if (TREE_CODE (TREE_OPERAND (t, 0)) == LABEL_DECL)
+ dump_unary_op (pp, "&&", t, flags);
+ else
+ dump_unary_op (pp, "&", t, flags);
+ break;
+
+ case INDIRECT_REF:
+ if (TREE_HAS_CONSTRUCTOR (t))
+ {
+ t = TREE_OPERAND (t, 0);
+ gcc_assert (TREE_CODE (t) == CALL_EXPR);
+ dump_expr (pp, CALL_EXPR_FN (t), flags | TFF_EXPR_IN_PARENS);
+ dump_call_expr_args (pp, t, flags, true);
+ }
+ else
+ {
+ if (TREE_OPERAND (t,0) != NULL_TREE
+ && TREE_TYPE (TREE_OPERAND (t, 0))
+ && NEXT_CODE (TREE_OPERAND (t, 0)) == REFERENCE_TYPE)
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ else
+ dump_unary_op (pp, "*", t, flags);
+ }
+ break;
+
+ case MEM_REF:
+ if (TREE_CODE (TREE_OPERAND (t, 0)) == ADDR_EXPR
+ && integer_zerop (TREE_OPERAND (t, 1)))
+ dump_expr (pp, TREE_OPERAND (TREE_OPERAND (t, 0), 0), flags);
+ else
+ {
+ pp_cxx_star (pp);
+ if (!integer_zerop (TREE_OPERAND (t, 1)))
+ {
+ pp_cxx_left_paren (pp);
+ if (!integer_onep (TYPE_SIZE_UNIT
+ (TREE_TYPE (TREE_TYPE (TREE_OPERAND (t, 0))))))
+ {
+ pp_cxx_left_paren (pp);
+ dump_type (pp, ptr_type_node, flags);
+ pp_cxx_right_paren (pp);
+ }
+ }
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ if (!integer_zerop (TREE_OPERAND (t, 1)))
+ {
+ pp_cxx_ws_string (pp, "+");
+ dump_expr (pp, fold_convert (ssizetype, TREE_OPERAND (t, 1)),
+ flags);
+ pp_cxx_right_paren (pp);
+ }
+ }
+ break;
+
+ case NEGATE_EXPR:
+ case BIT_NOT_EXPR:
+ case TRUTH_NOT_EXPR:
+ case PREDECREMENT_EXPR:
+ case PREINCREMENT_EXPR:
+ dump_unary_op (pp, operator_name_info [TREE_CODE (t)].name, t, flags);
+ break;
+
+ case POSTDECREMENT_EXPR:
+ case POSTINCREMENT_EXPR:
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_ws_string (pp, operator_name_info[TREE_CODE (t)].name);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case NON_LVALUE_EXPR:
+ /* FIXME: This is a KLUDGE workaround for a parsing problem. There
+ should be another level of INDIRECT_REF so that I don't have to do
+ this. */
+ if (TREE_TYPE (t) != NULL_TREE && NEXT_CODE (t) == POINTER_TYPE)
+ {
+ tree next = TREE_TYPE (TREE_TYPE (t));
+
+ while (TYPE_PTR_P (next))
+ next = TREE_TYPE (next);
+
+ if (TREE_CODE (next) == FUNCTION_TYPE)
+ {
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_left_paren (pp);
+ pp_cxx_star (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_right_paren (pp);
+ break;
+ }
+ /* Else fall through. */
+ }
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ break;
+
+ CASE_CONVERT:
+ case IMPLICIT_CONV_EXPR:
+ case VIEW_CONVERT_EXPR:
+ {
+ tree op = TREE_OPERAND (t, 0);
+ tree ttype = TREE_TYPE (t);
+ tree optype = TREE_TYPE (op);
+
+ if (TREE_CODE (ttype) != TREE_CODE (optype)
+ && POINTER_TYPE_P (ttype)
+ && POINTER_TYPE_P (optype)
+ && same_type_p (TREE_TYPE (optype),
+ TREE_TYPE (ttype)))
+ {
+ if (TREE_CODE (ttype) == REFERENCE_TYPE)
+ dump_unary_op (pp, "*", t, flags);
+ else
+ dump_unary_op (pp, "&", t, flags);
+ }
+ else if (!same_type_p (TREE_TYPE (op), TREE_TYPE (t)))
+ {
+ /* It is a cast, but we cannot tell whether it is a
+ reinterpret or static cast. Use the C style notation. */
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_left_paren (pp);
+ pp_cxx_left_paren (pp);
+ dump_type (pp, TREE_TYPE (t), flags);
+ pp_cxx_right_paren (pp);
+ dump_expr (pp, op, flags | TFF_EXPR_IN_PARENS);
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_right_paren (pp);
+ }
+ else
+ dump_expr (pp, op, flags);
+ break;
+ }
+
+ case CONSTRUCTOR:
+ if (TREE_TYPE (t) && TYPE_PTRMEMFUNC_P (TREE_TYPE (t)))
+ {
+ tree idx = build_ptrmemfunc_access_expr (t, pfn_identifier);
+
+ if (integer_zerop (idx))
+ {
+ /* A NULL pointer-to-member constant. */
+ pp_cxx_left_paren (pp);
+ pp_cxx_left_paren (pp);
+ dump_type (pp, TREE_TYPE (t), flags);
+ pp_cxx_right_paren (pp);
+ pp_character (pp, '0');
+ pp_cxx_right_paren (pp);
+ break;
+ }
+ else if (tree_fits_shwi_p (idx))
+ {
+ tree virtuals;
+ unsigned HOST_WIDE_INT n;
+
+ t = TREE_TYPE (TYPE_PTRMEMFUNC_FN_TYPE (TREE_TYPE (t)));
+ t = TYPE_METHOD_BASETYPE (t);
+ virtuals = BINFO_VIRTUALS (TYPE_BINFO (TYPE_MAIN_VARIANT (t)));
+
+ n = tree_to_shwi (idx);
+
+ /* Map vtable index back one, to allow for the null pointer to
+ member. */
+ --n;
+
+ while (n > 0 && virtuals)
+ {
+ --n;
+ virtuals = TREE_CHAIN (virtuals);
+ }
+ if (virtuals)
+ {
+ dump_expr (pp, BV_FN (virtuals),
+ flags | TFF_EXPR_IN_PARENS);
+ break;
+ }
+ }
+ }
+ if (TREE_TYPE (t) && LAMBDA_TYPE_P (TREE_TYPE (t)))
+ pp_string (pp, "<lambda closure object>");
+ if (TREE_TYPE (t) && EMPTY_CONSTRUCTOR_P (t))
+ {
+ dump_type (pp, TREE_TYPE (t), 0);
+ pp_cxx_left_paren (pp);
+ pp_cxx_right_paren (pp);
+ }
+ else
+ {
+ if (!BRACE_ENCLOSED_INITIALIZER_P (t))
+ dump_type (pp, TREE_TYPE (t), 0);
+ pp_cxx_left_brace (pp);
+ dump_expr_init_vec (pp, CONSTRUCTOR_ELTS (t), flags);
+ pp_cxx_right_brace (pp);
+ }
+
+ break;
+
+ case OFFSET_REF:
+ {
+ tree ob = TREE_OPERAND (t, 0);
+ if (is_dummy_object (ob))
+ {
+ t = TREE_OPERAND (t, 1);
+ if (TREE_CODE (t) == FUNCTION_DECL)
+ /* A::f */
+ dump_expr (pp, t, flags | TFF_EXPR_IN_PARENS);
+ else if (BASELINK_P (t))
+ dump_expr (pp, OVL_CURRENT (BASELINK_FUNCTIONS (t)),
+ flags | TFF_EXPR_IN_PARENS);
+ else
+ dump_decl (pp, t, flags);
+ }
+ else
+ {
+ if (INDIRECT_REF_P (ob))
+ {
+ dump_expr (pp, TREE_OPERAND (ob, 0), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_arrow (pp);
+ pp_cxx_star (pp);
+ }
+ else
+ {
+ dump_expr (pp, ob, flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_dot (pp);
+ pp_cxx_star (pp);
+ }
+ dump_expr (pp, TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
+ }
+ break;
+ }
+
+ case TEMPLATE_PARM_INDEX:
+ dump_decl (pp, TEMPLATE_PARM_DECL (t), flags & ~TFF_DECL_SPECIFIERS);
+ break;
+
+ case CAST_EXPR:
+ if (TREE_OPERAND (t, 0) == NULL_TREE
+ || TREE_CHAIN (TREE_OPERAND (t, 0)))
+ {
+ dump_type (pp, TREE_TYPE (t), flags);
+ pp_cxx_left_paren (pp);
+ dump_expr_list (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_right_paren (pp);
+ }
+ else
+ {
+ pp_cxx_left_paren (pp);
+ dump_type (pp, TREE_TYPE (t), flags);
+ pp_cxx_right_paren (pp);
+ pp_cxx_left_paren (pp);
+ dump_expr_list (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_right_paren (pp);
+ }
+ break;
+
+ case STATIC_CAST_EXPR:
+ pp_cxx_ws_string (pp, "static_cast");
+ goto cast;
+ case REINTERPRET_CAST_EXPR:
+ pp_cxx_ws_string (pp, "reinterpret_cast");
+ goto cast;
+ case CONST_CAST_EXPR:
+ pp_cxx_ws_string (pp, "const_cast");
+ goto cast;
+ case DYNAMIC_CAST_EXPR:
+ pp_cxx_ws_string (pp, "dynamic_cast");
+ cast:
+ pp_cxx_begin_template_argument_list (pp);
+ dump_type (pp, TREE_TYPE (t), flags);
+ pp_cxx_end_template_argument_list (pp);
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case ARROW_EXPR:
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_arrow (pp);
+ break;
+
+ case SIZEOF_EXPR:
+ case ALIGNOF_EXPR:
+ if (TREE_CODE (t) == SIZEOF_EXPR)
+ pp_cxx_ws_string (pp, "sizeof");
+ else
+ {
+ gcc_assert (TREE_CODE (t) == ALIGNOF_EXPR);
+ pp_cxx_ws_string (pp, "__alignof__");
+ }
+ op = TREE_OPERAND (t, 0);
+ if (PACK_EXPANSION_P (op))
+ {
+ pp_string (pp, "...");
+ op = PACK_EXPANSION_PATTERN (op);
+ }
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ if (TREE_CODE (t) == SIZEOF_EXPR && SIZEOF_EXPR_TYPE_P (t))
+ dump_type (pp, TREE_TYPE (op), flags);
+ else if (TYPE_P (TREE_OPERAND (t, 0)))
+ dump_type (pp, op, flags);
+ else
+ dump_expr (pp, op, flags);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case AT_ENCODE_EXPR:
+ pp_cxx_ws_string (pp, "@encode");
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ dump_type (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case NOEXCEPT_EXPR:
+ pp_cxx_ws_string (pp, "noexcept");
+ pp_cxx_whitespace (pp);
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case REALPART_EXPR:
+ case IMAGPART_EXPR:
+ pp_cxx_ws_string (pp, operator_name_info[TREE_CODE (t)].name);
+ pp_cxx_whitespace (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ break;
+
+ case DEFAULT_ARG:
+ pp_string (pp, M_("<unparsed>"));
+ break;
+
+ case TRY_CATCH_EXPR:
+ case WITH_CLEANUP_EXPR:
+ case CLEANUP_POINT_EXPR:
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ break;
+
+ case PSEUDO_DTOR_EXPR:
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ pp_cxx_dot (pp);
+ if (TREE_OPERAND (t, 1))
+ {
+ dump_type (pp, TREE_OPERAND (t, 1), flags);
+ pp_cxx_colon_colon (pp);
+ }
+ pp_cxx_complement (pp);
+ dump_type (pp, TREE_OPERAND (t, 2), flags);
+ break;
+
+ case TEMPLATE_ID_EXPR:
+ dump_decl (pp, t, flags);
+ break;
+
+ case BIND_EXPR:
+ case STMT_EXPR:
+ case EXPR_STMT:
+ case STATEMENT_LIST:
+ /* We don't yet have a way of dumping statements in a
+ human-readable format. */
+ pp_string (pp, "({...})");
+ break;
+
+ case LOOP_EXPR:
+ pp_string (pp, "while (1) { ");
+ dump_expr (pp, TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
+ pp_cxx_right_brace (pp);
+ break;
+
+ case EXIT_EXPR:
+ pp_string (pp, "if (");
+ dump_expr (pp, TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
+ pp_string (pp, ") break; ");
+ break;
+
+ case BASELINK:
+ dump_expr (pp, BASELINK_FUNCTIONS (t), flags & ~TFF_EXPR_IN_PARENS);
+ break;
+
+ case EMPTY_CLASS_EXPR:
+ dump_type (pp, TREE_TYPE (t), flags);
+ pp_cxx_left_paren (pp);
+ pp_cxx_right_paren (pp);
+ break;
+
+ case NON_DEPENDENT_EXPR:
+ dump_expr (pp, TREE_OPERAND (t, 0), flags);
+ break;
+
+ case ARGUMENT_PACK_SELECT:
+ dump_template_argument (pp, ARGUMENT_PACK_SELECT_FROM_PACK (t), flags);
+ break;
+
+ case RECORD_TYPE:
+ case UNION_TYPE:
+ case ENUMERAL_TYPE:
+ case REAL_TYPE:
+ case VOID_TYPE:
+ case BOOLEAN_TYPE:
+ case INTEGER_TYPE:
+ case COMPLEX_TYPE:
+ case VECTOR_TYPE:
+ pp_type_specifier_seq (pp, t);
+ break;
+
+ case TYPENAME_TYPE:
+ /* We get here when we want to print a dependent type as an
+ id-expression, without any disambiguator decoration. */
+ pp->id_expression (t);
+ break;
+
+ case TEMPLATE_TYPE_PARM:
+ case TEMPLATE_TEMPLATE_PARM:
+ case BOUND_TEMPLATE_TEMPLATE_PARM:
+ dump_type (pp, t, flags);
+ break;
+
+ case TRAIT_EXPR:
+ pp_cxx_trait_expression (pp, t);
+ break;
+
+ case VA_ARG_EXPR:
+ pp_cxx_va_arg_expression (pp, t);
+ break;
+
+ case OFFSETOF_EXPR:
+ pp_cxx_offsetof_expression (pp, t);
+ break;
+
+ case SCOPE_REF:
+ dump_decl (pp, t, flags);
+ break;
+
+ case EXPR_PACK_EXPANSION:
+ case TYPEID_EXPR:
+ case MEMBER_REF:
+ case DOTSTAR_EXPR:
+ case NEW_EXPR:
+ case VEC_NEW_EXPR:
+ case DELETE_EXPR:
+ case VEC_DELETE_EXPR:
+ case MODOP_EXPR:
+ case ABS_EXPR:
+ case CONJ_EXPR:
+ case VECTOR_CST:
+ case FIXED_CST:
+ case UNORDERED_EXPR:
+ case ORDERED_EXPR:
+ case UNLT_EXPR:
+ case UNLE_EXPR:
+ case UNGT_EXPR:
+ case UNGE_EXPR:
+ case UNEQ_EXPR:
+ case LTGT_EXPR:
+ case COMPLEX_EXPR:
+ case BIT_FIELD_REF:
+ case FIX_TRUNC_EXPR:
+ case FLOAT_EXPR:
+ pp->expression (t);
+ break;
+
+ case TRUTH_AND_EXPR:
+ case TRUTH_OR_EXPR:
+ case TRUTH_XOR_EXPR:
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_left_paren (pp);
+ pp->expression (t);
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_right_paren (pp);
+ break;
+
+ case OBJ_TYPE_REF:
+ dump_expr (pp, resolve_virtual_fun_from_obj_type_ref (t), flags);
+ break;
+
+ case LAMBDA_EXPR:
+ pp_string (pp, M_("<lambda>"));
+ break;
+
+ case PAREN_EXPR:
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_right_paren (pp);
+ break;
+
+ /* This list is incomplete, but should suffice for now.
+ It is very important that `sorry' does not call
+ `report_error_function'. That could cause an infinite loop. */
+ default:
+ pp_unsupported_tree (pp, t);
+ /* fall through to ERROR_MARK... */
+ case ERROR_MARK:
+ pp_string (pp, M_("<expression error>"));
+ break;
+ }
+}
+
+static void
+dump_binary_op (cxx_pretty_printer *pp, const char *opstring, tree t,
+ int flags)
+{
+ pp_cxx_left_paren (pp);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_whitespace (pp);
+ if (opstring)
+ pp_cxx_ws_string (pp, opstring);
+ else
+ pp_string (pp, M_("<unknown operator>"));
+ pp_cxx_whitespace (pp);
+ dump_expr (pp, TREE_OPERAND (t, 1), flags | TFF_EXPR_IN_PARENS);
+ pp_cxx_right_paren (pp);
+}
+
+static void
+dump_unary_op (cxx_pretty_printer *pp, const char *opstring, tree t, int flags)
+{
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_left_paren (pp);
+ pp_cxx_ws_string (pp, opstring);
+ dump_expr (pp, TREE_OPERAND (t, 0), flags & ~TFF_EXPR_IN_PARENS);
+ if (flags & TFF_EXPR_IN_PARENS)
+ pp_cxx_right_paren (pp);
+}
+
+static void
+reinit_cxx_pp (void)
+{
+ pp_clear_output_area (cxx_pp);
+ cxx_pp->padding = pp_none;
+ pp_indentation (cxx_pp) = 0;
+ pp_needs_newline (cxx_pp) = false;
+ cxx_pp->enclosing_scope = current_function_decl;
+}
+
+/* Same as pp_formatted_text, except the return string is a separate
+ copy and has a GGC storage duration, e.g. an indefinite lifetime. */
+
+inline const char *
+pp_ggc_formatted_text (pretty_printer *pp)
+{
+ return ggc_strdup (pp_formatted_text (pp));
+}
+
+/* Exported interface to stringifying types, exprs and decls under TFF_*
+ control. */
+
+const char *
+type_as_string (tree typ, int flags)
+{
+ reinit_cxx_pp ();
+ pp_translate_identifiers (cxx_pp) = false;
+ dump_type (cxx_pp, typ, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+const char *
+type_as_string_translate (tree typ, int flags)
+{
+ reinit_cxx_pp ();
+ dump_type (cxx_pp, typ, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+const char *
+expr_as_string (tree decl, int flags)
+{
+ reinit_cxx_pp ();
+ pp_translate_identifiers (cxx_pp) = false;
+ dump_expr (cxx_pp, decl, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+/* Wrap decl_as_string with options appropriate for dwarf. */
+
+const char *
+decl_as_dwarf_string (tree decl, int flags)
+{
+ const char *name;
+ /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
+ here will be adequate to get the desired behaviour. */
+ cxx_pp->flags |= pp_c_flag_gnu_v3;
+ name = decl_as_string (decl, flags);
+ /* Subsequent calls to the pretty printer shouldn't use this style. */
+ cxx_pp->flags &= ~pp_c_flag_gnu_v3;
+ return name;
+}
+
+const char *
+decl_as_string (tree decl, int flags)
+{
+ reinit_cxx_pp ();
+ pp_translate_identifiers (cxx_pp) = false;
+ dump_decl (cxx_pp, decl, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+const char *
+decl_as_string_translate (tree decl, int flags)
+{
+ reinit_cxx_pp ();
+ dump_decl (cxx_pp, decl, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+/* Wrap lang_decl_name with options appropriate for dwarf. */
+
+const char *
+lang_decl_dwarf_name (tree decl, int v, bool translate)
+{
+ const char *name;
+ /* Curiously, reinit_cxx_pp doesn't reset the flags field, so setting the flag
+ here will be adequate to get the desired behaviour. */
+ cxx_pp->flags |= pp_c_flag_gnu_v3;
+ name = lang_decl_name (decl, v, translate);
+ /* Subsequent calls to the pretty printer shouldn't use this style. */
+ cxx_pp->flags &= ~pp_c_flag_gnu_v3;
+ return name;
+}
+
+/* Generate the three forms of printable names for cxx_printable_name. */
+
+const char *
+lang_decl_name (tree decl, int v, bool translate)
+{
+ if (v >= 2)
+ return (translate
+ ? decl_as_string_translate (decl, TFF_DECL_SPECIFIERS)
+ : decl_as_string (decl, TFF_DECL_SPECIFIERS));
+
+ reinit_cxx_pp ();
+ pp_translate_identifiers (cxx_pp) = translate;
+ if (v == 1
+ && (DECL_CLASS_SCOPE_P (decl)
+ || (DECL_NAMESPACE_SCOPE_P (decl)
+ && CP_DECL_CONTEXT (decl) != global_namespace)))
+ {
+ dump_type (cxx_pp, CP_DECL_CONTEXT (decl), TFF_PLAIN_IDENTIFIER);
+ pp_cxx_colon_colon (cxx_pp);
+ }
+
+ if (TREE_CODE (decl) == FUNCTION_DECL)
+ dump_function_name (cxx_pp, decl, TFF_PLAIN_IDENTIFIER);
+ else if ((DECL_NAME (decl) == NULL_TREE)
+ && TREE_CODE (decl) == NAMESPACE_DECL)
+ dump_decl (cxx_pp, decl, TFF_PLAIN_IDENTIFIER | TFF_UNQUALIFIED_NAME);
+ else
+ dump_decl (cxx_pp, DECL_NAME (decl), TFF_PLAIN_IDENTIFIER);
+
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+/* Return the location of a tree passed to %+ formats. */
+
+location_t
+location_of (tree t)
+{
+ if (TYPE_P (t))
+ {
+ t = TYPE_MAIN_DECL (t);
+ if (t == NULL_TREE)
+ return input_location;
+ }
+ else if (TREE_CODE (t) == OVERLOAD)
+ t = OVL_FUNCTION (t);
+
+ if (DECL_P (t))
+ return DECL_SOURCE_LOCATION (t);
+ return EXPR_LOC_OR_LOC (t, input_location);
+}
+
+/* Now the interfaces from error et al to dump_type et al. Each takes an
+ on/off VERBOSE flag and supply the appropriate TFF_ flags to a dump_
+ function. */
+
+static const char *
+decl_to_string (tree decl, int verbose)
+{
+ int flags = 0;
+
+ if (TREE_CODE (decl) == TYPE_DECL || TREE_CODE (decl) == RECORD_TYPE
+ || TREE_CODE (decl) == UNION_TYPE || TREE_CODE (decl) == ENUMERAL_TYPE)
+ flags = TFF_CLASS_KEY_OR_ENUM;
+ if (verbose)
+ flags |= TFF_DECL_SPECIFIERS;
+ else if (TREE_CODE (decl) == FUNCTION_DECL)
+ flags |= TFF_DECL_SPECIFIERS | TFF_RETURN_TYPE;
+ flags |= TFF_TEMPLATE_HEADER;
+
+ reinit_cxx_pp ();
+ dump_decl (cxx_pp, decl, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+static const char *
+expr_to_string (tree decl)
+{
+ reinit_cxx_pp ();
+ dump_expr (cxx_pp, decl, 0);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+static const char *
+fndecl_to_string (tree fndecl, int verbose)
+{
+ int flags;
+
+ flags = TFF_EXCEPTION_SPECIFICATION | TFF_DECL_SPECIFIERS
+ | TFF_TEMPLATE_HEADER;
+ if (verbose)
+ flags |= TFF_FUNCTION_DEFAULT_ARGUMENTS;
+ reinit_cxx_pp ();
+ dump_decl (cxx_pp, fndecl, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+
+static const char *
+code_to_string (enum tree_code c)
+{
+ return get_tree_code_name (c);
+}
+
+const char *
+language_to_string (enum languages c)
+{
+ switch (c)
+ {
+ case lang_c:
+ return "C";
+
+ case lang_cplusplus:
+ return "C++";
+
+ case lang_java:
+ return "Java";
+
+ default:
+ gcc_unreachable ();
+ }
+ return NULL;
+}
+
+/* Return the proper printed version of a parameter to a C++ function. */
+
+static const char *
+parm_to_string (int p)
+{
+ reinit_cxx_pp ();
+ if (p < 0)
+ pp_string (cxx_pp, "'this'");
+ else
+ pp_decimal_int (cxx_pp, p + 1);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+static const char *
+op_to_string (enum tree_code p)
+{
+ tree id = operator_name_info[p].identifier;
+ return id ? IDENTIFIER_POINTER (id) : M_("<unknown>");
+}
+
+static const char *
+type_to_string (tree typ, int verbose)
+{
+ int flags = 0;
+ if (verbose)
+ flags |= TFF_CLASS_KEY_OR_ENUM;
+ flags |= TFF_TEMPLATE_HEADER;
+
+ reinit_cxx_pp ();
+ dump_type (cxx_pp, typ, flags);
+ /* If we're printing a type that involves typedefs, also print the
+ stripped version. But sometimes the stripped version looks
+ exactly the same, so we don't want it after all. To avoid printing
+ it in that case, we play ugly obstack games. */
+ if (typ && TYPE_P (typ) && typ != TYPE_CANONICAL (typ)
+ && !uses_template_parms (typ))
+ {
+ int aka_start; char *p;
+ struct obstack *ob = pp_buffer (cxx_pp)->obstack;
+ /* Remember the end of the initial dump. */
+ int len = obstack_object_size (ob);
+ tree aka = strip_typedefs (typ);
+ pp_string (cxx_pp, " {aka");
+ pp_cxx_whitespace (cxx_pp);
+ /* And remember the start of the aka dump. */
+ aka_start = obstack_object_size (ob);
+ dump_type (cxx_pp, aka, flags);
+ pp_right_brace (cxx_pp);
+ p = (char*)obstack_base (ob);
+ /* If they are identical, cut off the aka with a NUL. */
+ if (memcmp (p, p+aka_start, len) == 0)
+ p[len] = '\0';
+ }
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+static const char *
+assop_to_string (enum tree_code p)
+{
+ tree id = assignment_operator_name_info[(int) p].identifier;
+ return id ? IDENTIFIER_POINTER (id) : M_("{unknown}");
+}
+
+static const char *
+args_to_string (tree p, int verbose)
+{
+ int flags = 0;
+ if (verbose)
+ flags |= TFF_CLASS_KEY_OR_ENUM;
+
+ if (p == NULL_TREE)
+ return "";
+
+ if (TYPE_P (TREE_VALUE (p)))
+ return type_as_string_translate (p, flags);
+
+ reinit_cxx_pp ();
+ for (; p; p = TREE_CHAIN (p))
+ {
+ if (TREE_VALUE (p) == null_node)
+ pp_cxx_ws_string (cxx_pp, "NULL");
+ else
+ dump_type (cxx_pp, error_type (TREE_VALUE (p)), flags);
+ if (TREE_CHAIN (p))
+ pp_separate_with_comma (cxx_pp);
+ }
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+/* Pretty-print a deduction substitution (from deduction_tsubst_fntype). P
+ is a TREE_LIST with purpose the TEMPLATE_DECL, value the template
+ arguments. */
+
+static const char *
+subst_to_string (tree p)
+{
+ tree decl = TREE_PURPOSE (p);
+ tree targs = TREE_VALUE (p);
+ tree tparms = DECL_TEMPLATE_PARMS (decl);
+ int flags = (TFF_DECL_SPECIFIERS|TFF_TEMPLATE_HEADER
+ |TFF_NO_TEMPLATE_BINDINGS);
+
+ if (p == NULL_TREE)
+ return "";
+
+ reinit_cxx_pp ();
+ dump_template_decl (cxx_pp, TREE_PURPOSE (p), flags);
+ dump_substitution (cxx_pp, NULL, tparms, targs, /*flags=*/0);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+static const char *
+cv_to_string (tree p, int v)
+{
+ reinit_cxx_pp ();
+ cxx_pp->padding = v ? pp_before : pp_none;
+ pp_cxx_cv_qualifier_seq (cxx_pp, p);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+static const char *
+eh_spec_to_string (tree p, int /*v*/)
+{
+ int flags = 0;
+ reinit_cxx_pp ();
+ dump_exception_spec (cxx_pp, p, flags);
+ return pp_ggc_formatted_text (cxx_pp);
+}
+
+/* Langhook for print_error_function. */
+void
+cxx_print_error_function (diagnostic_context *context, const char *file,
+ diagnostic_info *diagnostic)
+{
+ lhd_print_error_function (context, file, diagnostic);
+ pp_set_prefix (context->printer, file);
+ maybe_print_instantiation_context (context);
+}
+
+static void
+cp_diagnostic_starter (diagnostic_context *context,
+ diagnostic_info *diagnostic)
+{
+ diagnostic_report_current_module (context, diagnostic->location);
+ cp_print_error_function (context, diagnostic);
+ maybe_print_instantiation_context (context);
+ maybe_print_constexpr_context (context);
+ pp_set_prefix (context->printer, diagnostic_build_prefix (context,
+ diagnostic));
+}
+
+static void
+cp_diagnostic_finalizer (diagnostic_context *context,
+ diagnostic_info *diagnostic)
+{
+ virt_loc_aware_diagnostic_finalizer (context, diagnostic);
+ pp_destroy_prefix (context->printer);
+}
+
+/* Print current function onto BUFFER, in the process of reporting
+ a diagnostic message. Called from cp_diagnostic_starter. */
+static void
+cp_print_error_function (diagnostic_context *context,
+ diagnostic_info *diagnostic)
+{
+ /* If we are in an instantiation context, current_function_decl is likely
+ to be wrong, so just rely on print_instantiation_full_context. */
+ if (current_instantiation ())
+ return;
+ if (diagnostic_last_function_changed (context, diagnostic))
+ {
+ const char *old_prefix = context->printer->prefix;
+ const char *file = LOCATION_FILE (diagnostic->location);
+ tree abstract_origin = diagnostic_abstract_origin (diagnostic);
+ char *new_prefix = (file && abstract_origin == NULL)
+ ? file_name_as_prefix (context, file) : NULL;
+
+ pp_set_prefix (context->printer, new_prefix);
+
+ if (current_function_decl == NULL)
+ pp_string (context->printer, _("At global scope:"));
+ else
+ {
+ tree fndecl, ao;
+
+ if (abstract_origin)
+ {
+ ao = BLOCK_ABSTRACT_ORIGIN (abstract_origin);
+ while (TREE_CODE (ao) == BLOCK
+ && BLOCK_ABSTRACT_ORIGIN (ao)
+ && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
+ ao = BLOCK_ABSTRACT_ORIGIN (ao);
+ gcc_assert (TREE_CODE (ao) == FUNCTION_DECL);
+ fndecl = ao;
+ }
+ else
+ fndecl = current_function_decl;
+
+ pp_printf (context->printer, function_category (fndecl),
+ cxx_printable_name_translate (fndecl, 2));
+
+ while (abstract_origin)
+ {
+ location_t *locus;
+ tree block = abstract_origin;
+
+ locus = &BLOCK_SOURCE_LOCATION (block);
+ fndecl = NULL;
+ block = BLOCK_SUPERCONTEXT (block);
+ while (block && TREE_CODE (block) == BLOCK
+ && BLOCK_ABSTRACT_ORIGIN (block))
+ {
+ ao = BLOCK_ABSTRACT_ORIGIN (block);
+
+ while (TREE_CODE (ao) == BLOCK
+ && BLOCK_ABSTRACT_ORIGIN (ao)
+ && BLOCK_ABSTRACT_ORIGIN (ao) != ao)
+ ao = BLOCK_ABSTRACT_ORIGIN (ao);
+
+ if (TREE_CODE (ao) == FUNCTION_DECL)
+ {
+ fndecl = ao;
+ break;
+ }
+ else if (TREE_CODE (ao) != BLOCK)
+ break;
+
+ block = BLOCK_SUPERCONTEXT (block);
+ }
+ if (fndecl)
+ abstract_origin = block;
+ else
+ {
+ while (block && TREE_CODE (block) == BLOCK)
+ block = BLOCK_SUPERCONTEXT (block);
+
+ if (block && TREE_CODE (block) == FUNCTION_DECL)
+ fndecl = block;
+ abstract_origin = NULL;
+ }
+ if (fndecl)
+ {
+ expanded_location s = expand_location (*locus);
+ pp_character (context->printer, ',');
+ pp_newline (context->printer);
+ if (s.file != NULL)
+ {
+ if (context->show_column && s.column != 0)
+ pp_printf (context->printer,
+ _(" inlined from %qs at %r%s:%d:%d%R"),
+ cxx_printable_name_translate (fndecl, 2),
+ "locus", s.file, s.line, s.column);
+ else
+ pp_printf (context->printer,
+ _(" inlined from %qs at %r%s:%d%R"),
+ cxx_printable_name_translate (fndecl, 2),
+ "locus", s.file, s.line);
+
+ }
+ else
+ pp_printf (context->printer, _(" inlined from %qs"),
+ cxx_printable_name_translate (fndecl, 2));
+ }
+ }
+ pp_character (context->printer, ':');
+ }
+ pp_newline (context->printer);
+
+ diagnostic_set_last_function (context, diagnostic);
+ pp_destroy_prefix (context->printer);
+ context->printer->prefix = old_prefix;
+ }
+}
+
+/* Returns a description of FUNCTION using standard terminology. The
+ result is a format string of the form "In CATEGORY %qs". */
+static const char *
+function_category (tree fn)
+{
+ /* We can get called from the middle-end for diagnostics of function
+ clones. Make sure we have language specific information before
+ dereferencing it. */
+ if (DECL_LANG_SPECIFIC (STRIP_TEMPLATE (fn))
+ && DECL_FUNCTION_MEMBER_P (fn))
+ {
+ if (DECL_STATIC_FUNCTION_P (fn))
+ return _("In static member function %qs");
+ else if (DECL_COPY_CONSTRUCTOR_P (fn))
+ return _("In copy constructor %qs");
+ else if (DECL_CONSTRUCTOR_P (fn))
+ return _("In constructor %qs");
+ else if (DECL_DESTRUCTOR_P (fn))
+ return _("In destructor %qs");
+ else if (LAMBDA_FUNCTION_P (fn))
+ return _("In lambda function");
+ else
+ return _("In member function %qs");
+ }
+ else
+ return _("In function %qs");
+}
+
+/* Report the full context of a current template instantiation,
+ onto BUFFER. */
+static void
+print_instantiation_full_context (diagnostic_context *context)
+{
+ struct tinst_level *p = current_instantiation ();
+ location_t location = input_location;
+
+ if (p)
+ {
+ pp_verbatim (context->printer,
+ TREE_CODE (p->decl) == TREE_LIST
+ ? _("%s: In substitution of %qS:\n")
+ : _("%s: In instantiation of %q#D:\n"),
+ LOCATION_FILE (location),
+ p->decl);
+
+ location = p->locus;
+ p = p->next;
+ }
+
+ print_instantiation_partial_context (context, p, location);
+}
+
+/* Helper function of print_instantiation_partial_context() that
+ prints a single line of instantiation context. */
+
+static void
+print_instantiation_partial_context_line (diagnostic_context *context,
+ const struct tinst_level *t,
+ location_t loc, bool recursive_p)
+{
+ if (loc == UNKNOWN_LOCATION)
+ return;
+
+ expanded_location xloc = expand_location (loc);
+
+ if (context->show_column)
+ pp_verbatim (context->printer, _("%r%s:%d:%d:%R "),
+ "locus", xloc.file, xloc.line, xloc.column);
+ else
+ pp_verbatim (context->printer, _("%r%s:%d:%R "),
+ "locus", xloc.file, xloc.line);
+
+ if (t != NULL)
+ {
+ if (TREE_CODE (t->decl) == TREE_LIST)
+ pp_verbatim (context->printer,
+ recursive_p
+ ? _("recursively required by substitution of %qS\n")
+ : _("required by substitution of %qS\n"),
+ t->decl);
+ else
+ pp_verbatim (context->printer,
+ recursive_p
+ ? _("recursively required from %q#D\n")
+ : _("required from %q#D\n"),
+ t->decl);
+ }
+ else
+ {
+ pp_verbatim (context->printer,
+ recursive_p
+ ? _("recursively required from here")
+ : _("required from here"));
+ }
+}
+
+/* Same as print_instantiation_full_context but less verbose. */
+
+static void
+print_instantiation_partial_context (diagnostic_context *context,
+ struct tinst_level *t0, location_t loc)
+{
+ struct tinst_level *t;
+ int n_total = 0;
+ int n;
+ location_t prev_loc = loc;
+
+ for (t = t0; t != NULL; t = t->next)
+ if (prev_loc != t->locus)
+ {
+ prev_loc = t->locus;
+ n_total++;
+ }
+
+ t = t0;
+
+ if (template_backtrace_limit
+ && n_total > template_backtrace_limit)
+ {
+ int skip = n_total - template_backtrace_limit;
+ int head = template_backtrace_limit / 2;
+
+ /* Avoid skipping just 1. If so, skip 2. */
+ if (skip == 1)
+ {
+ skip = 2;
+ head = (template_backtrace_limit - 1) / 2;
+ }
+
+ for (n = 0; n < head; n++)
+ {
+ gcc_assert (t != NULL);
+ if (loc != t->locus)
+ print_instantiation_partial_context_line (context, t, loc,
+ /*recursive_p=*/false);
+ loc = t->locus;
+ t = t->next;
+ }
+ if (t != NULL && skip > 0)
+ {
+ expanded_location xloc;
+ xloc = expand_location (loc);
+ if (context->show_column)
+ pp_verbatim (context->printer,
+ _("%r%s:%d:%d:%R [ skipping %d instantiation "
+ "contexts, use -ftemplate-backtrace-limit=0 to "
+ "disable ]\n"),
+ "locus", xloc.file, xloc.line, xloc.column, skip);
+ else
+ pp_verbatim (context->printer,
+ _("%r%s:%d:%R [ skipping %d instantiation "
+ "contexts, use -ftemplate-backtrace-limit=0 to "
+ "disable ]\n"),
+ "locus", xloc.file, xloc.line, skip);
+
+ do {
+ loc = t->locus;
+ t = t->next;
+ } while (t != NULL && --skip > 0);
+ }
+ }
+
+ while (t != NULL)
+ {
+ while (t->next != NULL && t->locus == t->next->locus)
+ {
+ loc = t->locus;
+ t = t->next;
+ }
+ print_instantiation_partial_context_line (context, t, loc,
+ t->locus == loc);
+ loc = t->locus;
+ t = t->next;
+ }
+ print_instantiation_partial_context_line (context, NULL, loc,
+ /*recursive_p=*/false);
+ pp_newline (context->printer);
+}
+
+/* Called from cp_thing to print the template context for an error. */
+static void
+maybe_print_instantiation_context (diagnostic_context *context)
+{
+ if (!problematic_instantiation_changed () || current_instantiation () == 0)
+ return;
+
+ record_last_problematic_instantiation ();
+ print_instantiation_full_context (context);
+}
+
+/* Report the bare minimum context of a template instantiation. */
+void
+print_instantiation_context (void)
+{
+ print_instantiation_partial_context
+ (global_dc, current_instantiation (), input_location);
+ pp_newline (global_dc->printer);
+ diagnostic_flush_buffer (global_dc);
+}
+
+/* Report what constexpr call(s) we're trying to expand, if any. */
+
+void
+maybe_print_constexpr_context (diagnostic_context *context)
+{
+ vec<tree> call_stack = cx_error_context ();
+ unsigned ix;
+ tree t;
+
+ FOR_EACH_VEC_ELT (call_stack, ix, t)
+ {
+ expanded_location xloc = expand_location (EXPR_LOCATION (t));
+ const char *s = expr_as_string (t, 0);
+ if (context->show_column)
+ pp_verbatim (context->printer,
+ _("%r%s:%d:%d:%R in constexpr expansion of %qs"),
+ "locus", xloc.file, xloc.line, xloc.column, s);
+ else
+ pp_verbatim (context->printer,
+ _("%r%s:%d:%R in constexpr expansion of %qs"),
+ "locus", xloc.file, xloc.line, s);
+ pp_newline (context->printer);
+ }
+}
+
+/* Called from output_format -- during diagnostic message processing --
+ to handle C++ specific format specifier with the following meanings:
+ %A function argument-list.
+ %C tree code.
+ %D declaration.
+ %E expression.
+ %F function declaration.
+ %L language as used in extern "lang".
+ %O binary operator.
+ %P function parameter whose position is indicated by an integer.
+ %Q assignment operator.
+ %S substitution (template + args)
+ %T type.
+ %V cv-qualifier.
+ %X exception-specification. */
+static bool
+cp_printer (pretty_printer *pp, text_info *text, const char *spec,
+ int precision, bool wide, bool set_locus, bool verbose)
+{
+ const char *result;
+ tree t = NULL;
+#define next_tree (t = va_arg (*text->args_ptr, tree))
+#define next_tcode ((enum tree_code) va_arg (*text->args_ptr, int))
+#define next_lang ((enum languages) va_arg (*text->args_ptr, int))
+#define next_int va_arg (*text->args_ptr, int)
+
+ if (precision != 0 || wide)
+ return false;
+
+ if (text->locus == NULL)
+ set_locus = false;
+
+ switch (*spec)
+ {
+ case 'A': result = args_to_string (next_tree, verbose); break;
+ case 'C': result = code_to_string (next_tcode); break;
+ case 'D':
+ {
+ tree temp = next_tree;
+ if (VAR_P (temp)
+ && DECL_HAS_DEBUG_EXPR_P (temp))
+ {
+ temp = DECL_DEBUG_EXPR (temp);
+ if (!DECL_P (temp))
+ {
+ result = expr_to_string (temp);
+ break;
+ }
+ }
+ result = decl_to_string (temp, verbose);
+ }
+ break;
+ case 'E': result = expr_to_string (next_tree); break;
+ case 'F': result = fndecl_to_string (next_tree, verbose); break;
+ case 'L': result = language_to_string (next_lang); break;
+ case 'O': result = op_to_string (next_tcode); break;
+ case 'P': result = parm_to_string (next_int); break;
+ case 'Q': result = assop_to_string (next_tcode); break;
+ case 'S': result = subst_to_string (next_tree); break;
+ case 'T': result = type_to_string (next_tree, verbose); break;
+ case 'V': result = cv_to_string (next_tree, verbose); break;
+ case 'X': result = eh_spec_to_string (next_tree, verbose); break;
+
+ case 'K':
+ percent_K_format (text);
+ return true;
+
+ default:
+ return false;
+ }
+
+ pp_string (pp, result);
+ if (set_locus && t != NULL)
+ *text->locus = location_of (t);
+ return true;
+#undef next_tree
+#undef next_tcode
+#undef next_lang
+#undef next_int
+}
+
+/* Warn about the use of C++0x features when appropriate. */
+void
+maybe_warn_cpp0x (cpp0x_warn_str str)
+{
+ if ((cxx_dialect == cxx98) && !in_system_header_at (input_location))
+ /* We really want to suppress this warning in system headers,
+ because libstdc++ uses variadic templates even when we aren't
+ in C++0x mode. */
+ switch (str)
+ {
+ case CPP0X_INITIALIZER_LISTS:
+ pedwarn (input_location, 0,
+ "extended initializer lists "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_EXPLICIT_CONVERSION:
+ pedwarn (input_location, 0,
+ "explicit conversion operators "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_VARIADIC_TEMPLATES:
+ pedwarn (input_location, 0,
+ "variadic templates "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_LAMBDA_EXPR:
+ pedwarn (input_location, 0,
+ "lambda expressions "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_AUTO:
+ pedwarn (input_location, 0,
+ "C++11 auto only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_SCOPED_ENUMS:
+ pedwarn (input_location, 0,
+ "scoped enums only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_DEFAULTED_DELETED:
+ pedwarn (input_location, 0,
+ "defaulted and deleted functions "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_INLINE_NAMESPACES:
+ pedwarn (input_location, OPT_Wpedantic,
+ "inline namespaces "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_OVERRIDE_CONTROLS:
+ pedwarn (input_location, 0,
+ "override controls (override/final) "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_NSDMI:
+ pedwarn (input_location, 0,
+ "non-static data member initializers "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_USER_DEFINED_LITERALS:
+ pedwarn (input_location, 0,
+ "user-defined literals "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_DELEGATING_CTORS:
+ pedwarn (input_location, 0,
+ "delegating constructors "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_INHERITING_CTORS:
+ pedwarn (input_location, 0,
+ "inheriting constructors "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_ATTRIBUTES:
+ pedwarn (input_location, 0,
+ "c++11 attributes "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ case CPP0X_REF_QUALIFIER:
+ pedwarn (input_location, 0,
+ "ref-qualifiers "
+ "only available with -std=c++11 or -std=gnu++11");
+ break;
+ default:
+ gcc_unreachable ();
+ }
+}
+
+/* Warn about the use of variadic templates when appropriate. */
+void
+maybe_warn_variadic_templates (void)
+{
+ maybe_warn_cpp0x (CPP0X_VARIADIC_TEMPLATES);
+}
+
+
+/* Issue an ISO C++98 pedantic warning at LOCATION, conditional on
+ option OPT with text GMSGID. Use this function to report
+ diagnostics for constructs that are invalid C++98, but valid
+ C++0x. */
+bool
+pedwarn_cxx98 (location_t location, int opt, const char *gmsgid, ...)
+{
+ diagnostic_info diagnostic;
+ va_list ap;
+ bool ret;
+
+ va_start (ap, gmsgid);
+ diagnostic_set_info (&diagnostic, gmsgid, &ap, location,
+ (cxx_dialect == cxx98) ? DK_PEDWARN : DK_WARNING);
+ diagnostic.option_index = opt;
+ ret = report_diagnostic (&diagnostic);
+ va_end (ap);
+ return ret;
+}
+
+/* Issue a diagnostic that NAME cannot be found in SCOPE. DECL is what
+ we found when we tried to do the lookup. LOCATION is the location of
+ the NAME identifier. */
+
+void
+qualified_name_lookup_error (tree scope, tree name,
+ tree decl, location_t location)
+{
+ if (scope == error_mark_node)
+ ; /* We already complained. */
+ else if (TYPE_P (scope))
+ {
+ if (!COMPLETE_TYPE_P (scope))
+ error_at (location, "incomplete type %qT used in nested name specifier",
+ scope);
+ else if (TREE_CODE (decl) == TREE_LIST)
+ {
+ error_at (location, "reference to %<%T::%D%> is ambiguous",
+ scope, name);
+ print_candidates (decl);
+ }
+ else
+ error_at (location, "%qD is not a member of %qT", name, scope);
+ }
+ else if (scope != global_namespace)
+ {
+ error_at (location, "%qD is not a member of %qD", name, scope);
+ suggest_alternatives_for (location, name);
+ }
+ else
+ {
+ error_at (location, "%<::%D%> has not been declared", name);
+ suggest_alternatives_for (location, name);
+ }
+}