/* Language independent support for printing types for GDB, the GNU debugger.
- Copyright 1986, 1988, 1989, 1991, 1992, 1993, 1999
- Free Software Foundation, Inc.
+ Copyright (C) 1986-2020 Free Software Foundation, Inc.
This file is part of GDB.
This program 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 2 of the License, or
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-void
-print_type_scalar PARAMS ((struct type * type, LONGEST, GDB_FILE *));
+#ifndef TYPEPRINT_H
+#define TYPEPRINT_H
-void
-c_type_print_varspec_suffix PARAMS ((struct type *, GDB_FILE *, int, int, int));
+#include "gdb_obstack.h"
+
+enum language;
+struct ui_file;
+struct typedef_hash_table;
+struct ext_lang_type_printers;
+
+struct print_offset_data
+{
+ /* The offset to be applied to bitpos when PRINT_OFFSETS is true.
+ This is needed for when we are printing nested structs and want
+ to make sure that the printed offset for each field carries over
+ the offset of the outter struct. */
+ unsigned int offset_bitpos = 0;
+
+ /* END_BITPOS is the one-past-the-end bit position of the previous
+ field (where we expect the current field to be if there is no
+ hole). */
+ unsigned int end_bitpos = 0;
+
+ /* Print information about field at index FIELD_IDX of the struct type
+ TYPE and update this object.
+
+ If the field is static, it simply prints the correct number of
+ spaces.
+
+ The output is strongly based on pahole(1). */
+ void update (struct type *type, unsigned int field_idx,
+ struct ui_file *stream);
+
+ /* Call when all fields have been printed. This will print
+ information about any padding that may exist. LEVEL is the
+ desired indentation level. */
+ void finish (struct type *type, int level, struct ui_file *stream);
+
+ /* When printing the offsets of a struct and its fields (i.e.,
+ 'ptype /o'; type_print_options::print_offsets), we use this many
+ characters when printing the offset information at the beginning
+ of the line. This is needed in order to generate the correct
+ amount of whitespaces when no offset info should be printed for a
+ certain field. */
+ static const int indentation;
+
+private:
+
+ /* Helper function for ptype/o implementation that prints
+ information about a hole, if necessary. STREAM is where to
+ print. BITPOS is the bitpos of the current field. FOR_WHAT is a
+ string describing the purpose of the hole. */
+
+ void maybe_print_hole (struct ui_file *stream, unsigned int bitpos,
+ const char *for_what);
+};
+
+struct type_print_options
+{
+ /* True means that no special printing flags should apply. */
+ unsigned int raw : 1;
+
+ /* True means print methods in a class. */
+ unsigned int print_methods : 1;
+
+ /* True means print typedefs in a class. */
+ unsigned int print_typedefs : 1;
+
+ /* True means to print offsets, a la 'pahole'. */
+ unsigned int print_offsets : 1;
+
+ /* The number of nested type definitions to print. -1 == all. */
+ int print_nested_type_limit;
+
+ /* If not NULL, a local typedef hash table used when printing a
+ type. */
+ typedef_hash_table *local_typedefs;
+
+ /* If not NULL, a global typedef hash table used when printing a
+ type. */
+ typedef_hash_table *global_typedefs;
+
+ /* The list of type printers associated with the global typedef
+ table. This is intentionally opaque. */
+ struct ext_lang_type_printers *global_printers;
+};
+
+extern const struct type_print_options type_print_raw_options;
+
+/* A hash table holding typedef_field objects. This is more
+ complicated than an ordinary hash because it must also track the
+ lifetime of some -- but not all -- of the contained objects. */
+
+class typedef_hash_table
+{
+public:
+
+ /* Create a new typedef-lookup hash table. */
+ typedef_hash_table ();
+
+ ~typedef_hash_table ();
+
+ /* Copy a typedef hash. */
+ typedef_hash_table (const typedef_hash_table &);
+
+ typedef_hash_table &operator= (const typedef_hash_table &) = delete;
+
+ /* Add typedefs from T to the hash table TABLE. */
+ void recursively_update (struct type *);
+
+ /* Add template parameters from T to the typedef hash TABLE. */
+ void add_template_parameters (struct type *t);
+
+ /* Look up the type T in the typedef hash tables contained in FLAGS.
+ The local table is searched first, then the global table (either
+ table can be NULL, in which case it is skipped). If T is in a
+ table, return its short (class-relative) typedef name. Otherwise
+ return NULL. */
+ static const char *find_typedef (const struct type_print_options *flags,
+ struct type *t);
+
+private:
+
+ static const char *find_global_typedef (const struct type_print_options *flags,
+ struct type *t);
+
+
+ /* The actual hash table. */
+ htab_t m_table;
+
+ /* Storage for typedef_field objects that must be synthesized. */
+ auto_obstack m_storage;
+};
+
+
+void print_type_scalar (struct type * type, LONGEST, struct ui_file *);
+
+void c_type_print_args (struct type *, struct ui_file *, int, enum language,
+ const struct type_print_options *);
+
+/* Print <unknown return type> to stream STREAM. */
+
+void type_print_unknown_return_type (struct ui_file *stream);
+
+/* Throw an error indicating that the user tried to use a symbol that
+ has unknown type. SYM_PRINT_NAME is the name of the symbol, to be
+ included in the error message. */
+extern void error_unknown_type (const char *sym_print_name);
+
+extern void val_print_not_allocated (struct ui_file *stream);
+
+extern void val_print_not_associated (struct ui_file *stream);
+
+#endif
projects / deliverable / binutils-gdb.git / blobdiff