1516 lines
39 KiB
C
1516 lines
39 KiB
C
/* Scheme interface to types.
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Copyright (C) 2008-2018 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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/* See README file in this directory for implementation notes, coding
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conventions, et.al. */
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#include "defs.h"
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#include "arch-utils.h"
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#include "value.h"
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#include "gdbtypes.h"
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#include "objfiles.h"
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#include "language.h"
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#include "vec.h"
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#include "bcache.h"
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#include "dwarf2loc.h"
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#include "typeprint.h"
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#include "guile-internal.h"
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/* The <gdb:type> smob.
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The type is chained with all types associated with its objfile, if any.
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This lets us copy the underlying struct type when the objfile is
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deleted.
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The typedef for this struct is in guile-internal.h. */
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struct _type_smob
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{
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/* This always appears first.
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eqable_gdb_smob is used so that types are eq?-able.
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Also, a type object can be associated with an objfile. eqable_gdb_smob
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lets us track the lifetime of all types associated with an objfile.
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When an objfile is deleted we need to invalidate the type object. */
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eqable_gdb_smob base;
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/* The GDB type structure this smob is wrapping. */
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struct type *type;
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};
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/* A field smob. */
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typedef struct
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{
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/* This always appears first. */
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gdb_smob base;
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/* Backlink to the containing <gdb:type> object. */
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SCM type_scm;
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/* The field number in TYPE_SCM. */
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int field_num;
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} field_smob;
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static const char type_smob_name[] = "gdb:type";
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static const char field_smob_name[] = "gdb:field";
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static const char not_composite_error[] =
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N_("type is not a structure, union, or enum type");
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/* The tag Guile knows the type smob by. */
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static scm_t_bits type_smob_tag;
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/* The tag Guile knows the field smob by. */
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static scm_t_bits field_smob_tag;
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/* The "next" procedure for field iterators. */
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static SCM tyscm_next_field_x_proc;
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/* Keywords used in argument passing. */
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static SCM block_keyword;
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static const struct objfile_data *tyscm_objfile_data_key;
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/* Hash table to uniquify global (non-objfile-owned) types. */
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static htab_t global_types_map;
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static struct type *tyscm_get_composite (struct type *type);
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/* Return the type field of T_SMOB.
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This exists so that we don't have to export the struct's contents. */
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struct type *
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tyscm_type_smob_type (type_smob *t_smob)
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{
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return t_smob->type;
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}
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/* Return the name of TYPE in expanded form. If there's an error
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computing the name, throws the gdb exception with scm_throw. */
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static std::string
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tyscm_type_name (struct type *type)
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{
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TRY
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{
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string_file stb;
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LA_PRINT_TYPE (type, "", &stb, -1, 0, &type_print_raw_options);
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return std::move (stb.string ());
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}
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CATCH (except, RETURN_MASK_ALL)
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{
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SCM excp = gdbscm_scm_from_gdb_exception (except);
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gdbscm_throw (excp);
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}
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END_CATCH
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gdb_assert_not_reached ("no way to get here");
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}
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/* Administrivia for type smobs. */
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/* Helper function to hash a type_smob. */
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static hashval_t
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tyscm_hash_type_smob (const void *p)
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{
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const type_smob *t_smob = (const type_smob *) p;
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return htab_hash_pointer (t_smob->type);
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}
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/* Helper function to compute equality of type_smobs. */
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static int
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tyscm_eq_type_smob (const void *ap, const void *bp)
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{
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const type_smob *a = (const type_smob *) ap;
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const type_smob *b = (const type_smob *) bp;
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return (a->type == b->type
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&& a->type != NULL);
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}
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/* Return the struct type pointer -> SCM mapping table.
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If type is owned by an objfile, the mapping table is created if necessary.
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Otherwise, type is not owned by an objfile, and we use
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global_types_map. */
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static htab_t
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tyscm_type_map (struct type *type)
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{
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struct objfile *objfile = TYPE_OBJFILE (type);
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htab_t htab;
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if (objfile == NULL)
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return global_types_map;
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htab = (htab_t) objfile_data (objfile, tyscm_objfile_data_key);
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if (htab == NULL)
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{
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htab = gdbscm_create_eqable_gsmob_ptr_map (tyscm_hash_type_smob,
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tyscm_eq_type_smob);
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set_objfile_data (objfile, tyscm_objfile_data_key, htab);
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}
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return htab;
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}
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/* The smob "free" function for <gdb:type>. */
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static size_t
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tyscm_free_type_smob (SCM self)
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{
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type_smob *t_smob = (type_smob *) SCM_SMOB_DATA (self);
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if (t_smob->type != NULL)
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{
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htab_t htab = tyscm_type_map (t_smob->type);
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gdbscm_clear_eqable_gsmob_ptr_slot (htab, &t_smob->base);
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}
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/* Not necessary, done to catch bugs. */
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t_smob->type = NULL;
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return 0;
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}
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/* The smob "print" function for <gdb:type>. */
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static int
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tyscm_print_type_smob (SCM self, SCM port, scm_print_state *pstate)
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{
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type_smob *t_smob = (type_smob *) SCM_SMOB_DATA (self);
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std::string name = tyscm_type_name (t_smob->type);
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/* pstate->writingp = zero if invoked by display/~A, and nonzero if
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invoked by write/~S. What to do here may need to evolve.
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IWBN if we could pass an argument to format that would we could use
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instead of writingp. */
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if (pstate->writingp)
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gdbscm_printf (port, "#<%s ", type_smob_name);
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scm_puts (name.c_str (), port);
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if (pstate->writingp)
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scm_puts (">", port);
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scm_remember_upto_here_1 (self);
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/* Non-zero means success. */
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return 1;
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}
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/* The smob "equal?" function for <gdb:type>. */
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static SCM
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tyscm_equal_p_type_smob (SCM type1_scm, SCM type2_scm)
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{
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type_smob *type1_smob, *type2_smob;
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struct type *type1, *type2;
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int result = 0;
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SCM_ASSERT_TYPE (tyscm_is_type (type1_scm), type1_scm, SCM_ARG1, FUNC_NAME,
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type_smob_name);
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SCM_ASSERT_TYPE (tyscm_is_type (type2_scm), type2_scm, SCM_ARG2, FUNC_NAME,
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type_smob_name);
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type1_smob = (type_smob *) SCM_SMOB_DATA (type1_scm);
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type2_smob = (type_smob *) SCM_SMOB_DATA (type2_scm);
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type1 = type1_smob->type;
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type2 = type2_smob->type;
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TRY
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{
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result = types_deeply_equal (type1, type2);
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}
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CATCH (except, RETURN_MASK_ALL)
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{
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GDBSCM_HANDLE_GDB_EXCEPTION (except);
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}
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END_CATCH
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return scm_from_bool (result);
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}
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/* Low level routine to create a <gdb:type> object. */
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static SCM
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tyscm_make_type_smob (void)
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{
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type_smob *t_smob = (type_smob *)
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scm_gc_malloc (sizeof (type_smob), type_smob_name);
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SCM t_scm;
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/* This must be filled in by the caller. */
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t_smob->type = NULL;
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t_scm = scm_new_smob (type_smob_tag, (scm_t_bits) t_smob);
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gdbscm_init_eqable_gsmob (&t_smob->base, t_scm);
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return t_scm;
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}
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/* Return non-zero if SCM is a <gdb:type> object. */
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int
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tyscm_is_type (SCM self)
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{
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return SCM_SMOB_PREDICATE (type_smob_tag, self);
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}
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/* (type? object) -> boolean */
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static SCM
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gdbscm_type_p (SCM self)
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{
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return scm_from_bool (tyscm_is_type (self));
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}
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/* Return the existing object that encapsulates TYPE, or create a new
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<gdb:type> object. */
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SCM
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tyscm_scm_from_type (struct type *type)
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{
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htab_t htab;
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eqable_gdb_smob **slot;
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type_smob *t_smob, t_smob_for_lookup;
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SCM t_scm;
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/* If we've already created a gsmob for this type, return it.
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This makes types eq?-able. */
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htab = tyscm_type_map (type);
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t_smob_for_lookup.type = type;
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slot = gdbscm_find_eqable_gsmob_ptr_slot (htab, &t_smob_for_lookup.base);
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if (*slot != NULL)
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return (*slot)->containing_scm;
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t_scm = tyscm_make_type_smob ();
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t_smob = (type_smob *) SCM_SMOB_DATA (t_scm);
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t_smob->type = type;
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gdbscm_fill_eqable_gsmob_ptr_slot (slot, &t_smob->base);
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return t_scm;
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}
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/* Returns the <gdb:type> object in SELF.
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Throws an exception if SELF is not a <gdb:type> object. */
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static SCM
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tyscm_get_type_arg_unsafe (SCM self, int arg_pos, const char *func_name)
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{
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SCM_ASSERT_TYPE (tyscm_is_type (self), self, arg_pos, func_name,
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type_smob_name);
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return self;
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}
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/* Returns a pointer to the type smob of SELF.
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Throws an exception if SELF is not a <gdb:type> object. */
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type_smob *
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tyscm_get_type_smob_arg_unsafe (SCM self, int arg_pos, const char *func_name)
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{
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SCM t_scm = tyscm_get_type_arg_unsafe (self, arg_pos, func_name);
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type_smob *t_smob = (type_smob *) SCM_SMOB_DATA (t_scm);
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return t_smob;
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}
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/* Return the type field of T_SCM, an object of type <gdb:type>.
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This exists so that we don't have to export the struct's contents. */
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struct type *
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tyscm_scm_to_type (SCM t_scm)
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{
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type_smob *t_smob;
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gdb_assert (tyscm_is_type (t_scm));
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t_smob = (type_smob *) SCM_SMOB_DATA (t_scm);
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return t_smob->type;
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}
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/* Helper function for save_objfile_types to make a deep copy of the type. */
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static int
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tyscm_copy_type_recursive (void **slot, void *info)
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{
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type_smob *t_smob = (type_smob *) *slot;
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htab_t copied_types = (htab_t) info;
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struct objfile *objfile = TYPE_OBJFILE (t_smob->type);
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htab_t htab;
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eqable_gdb_smob **new_slot;
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type_smob t_smob_for_lookup;
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gdb_assert (objfile != NULL);
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htab_empty (copied_types);
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t_smob->type = copy_type_recursive (objfile, t_smob->type, copied_types);
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/* The eq?-hashtab that the type lived in is going away.
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Add the type to its new eq?-hashtab: Otherwise if/when the type is later
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garbage collected we'll assert-fail if the type isn't in the hashtab.
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PR 16612.
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Types now live in "arch space", and things like "char" that came from
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the objfile *could* be considered eq? with the arch "char" type.
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However, they weren't before the objfile got deleted, so making them
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eq? now is debatable. */
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htab = tyscm_type_map (t_smob->type);
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t_smob_for_lookup.type = t_smob->type;
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new_slot = gdbscm_find_eqable_gsmob_ptr_slot (htab, &t_smob_for_lookup.base);
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gdb_assert (*new_slot == NULL);
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gdbscm_fill_eqable_gsmob_ptr_slot (new_slot, &t_smob->base);
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return 1;
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}
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/* Called when OBJFILE is about to be deleted.
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Make a copy of all types associated with OBJFILE. */
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static void
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save_objfile_types (struct objfile *objfile, void *datum)
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{
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htab_t htab = (htab_t) datum;
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htab_t copied_types;
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if (!gdb_scheme_initialized)
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return;
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copied_types = create_copied_types_hash (objfile);
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if (htab != NULL)
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{
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htab_traverse_noresize (htab, tyscm_copy_type_recursive, copied_types);
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htab_delete (htab);
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}
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htab_delete (copied_types);
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}
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/* Administrivia for field smobs. */
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/* The smob "print" function for <gdb:field>. */
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static int
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tyscm_print_field_smob (SCM self, SCM port, scm_print_state *pstate)
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{
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field_smob *f_smob = (field_smob *) SCM_SMOB_DATA (self);
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gdbscm_printf (port, "#<%s ", field_smob_name);
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scm_write (f_smob->type_scm, port);
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gdbscm_printf (port, " %d", f_smob->field_num);
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scm_puts (">", port);
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scm_remember_upto_here_1 (self);
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/* Non-zero means success. */
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return 1;
|
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}
|
||
|
||
/* Low level routine to create a <gdb:field> object for field FIELD_NUM
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of type TYPE_SCM. */
|
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static SCM
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tyscm_make_field_smob (SCM type_scm, int field_num)
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{
|
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field_smob *f_smob = (field_smob *)
|
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scm_gc_malloc (sizeof (field_smob), field_smob_name);
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SCM result;
|
||
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f_smob->type_scm = type_scm;
|
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f_smob->field_num = field_num;
|
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result = scm_new_smob (field_smob_tag, (scm_t_bits) f_smob);
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gdbscm_init_gsmob (&f_smob->base);
|
||
|
||
return result;
|
||
}
|
||
|
||
/* Return non-zero if SCM is a <gdb:field> object. */
|
||
|
||
static int
|
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tyscm_is_field (SCM self)
|
||
{
|
||
return SCM_SMOB_PREDICATE (field_smob_tag, self);
|
||
}
|
||
|
||
/* (field? object) -> boolean */
|
||
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static SCM
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||
gdbscm_field_p (SCM self)
|
||
{
|
||
return scm_from_bool (tyscm_is_field (self));
|
||
}
|
||
|
||
/* Create a new <gdb:field> object that encapsulates field FIELD_NUM
|
||
in type TYPE_SCM. */
|
||
|
||
SCM
|
||
tyscm_scm_from_field (SCM type_scm, int field_num)
|
||
{
|
||
return tyscm_make_field_smob (type_scm, field_num);
|
||
}
|
||
|
||
/* Returns the <gdb:field> object in SELF.
|
||
Throws an exception if SELF is not a <gdb:field> object. */
|
||
|
||
static SCM
|
||
tyscm_get_field_arg_unsafe (SCM self, int arg_pos, const char *func_name)
|
||
{
|
||
SCM_ASSERT_TYPE (tyscm_is_field (self), self, arg_pos, func_name,
|
||
field_smob_name);
|
||
|
||
return self;
|
||
}
|
||
|
||
/* Returns a pointer to the field smob of SELF.
|
||
Throws an exception if SELF is not a <gdb:field> object. */
|
||
|
||
static field_smob *
|
||
tyscm_get_field_smob_arg_unsafe (SCM self, int arg_pos, const char *func_name)
|
||
{
|
||
SCM f_scm = tyscm_get_field_arg_unsafe (self, arg_pos, func_name);
|
||
field_smob *f_smob = (field_smob *) SCM_SMOB_DATA (f_scm);
|
||
|
||
return f_smob;
|
||
}
|
||
|
||
/* Returns a pointer to the type struct in F_SMOB
|
||
(the type the field is in). */
|
||
|
||
static struct type *
|
||
tyscm_field_smob_containing_type (field_smob *f_smob)
|
||
{
|
||
type_smob *t_smob;
|
||
|
||
gdb_assert (tyscm_is_type (f_smob->type_scm));
|
||
t_smob = (type_smob *) SCM_SMOB_DATA (f_smob->type_scm);
|
||
|
||
return t_smob->type;
|
||
}
|
||
|
||
/* Returns a pointer to the field struct of F_SMOB. */
|
||
|
||
static struct field *
|
||
tyscm_field_smob_to_field (field_smob *f_smob)
|
||
{
|
||
struct type *type = tyscm_field_smob_containing_type (f_smob);
|
||
|
||
/* This should be non-NULL by construction. */
|
||
gdb_assert (TYPE_FIELDS (type) != NULL);
|
||
|
||
return &TYPE_FIELD (type, f_smob->field_num);
|
||
}
|
||
|
||
/* Type smob accessors. */
|
||
|
||
/* (type-code <gdb:type>) -> integer
|
||
Return the code for this type. */
|
||
|
||
static SCM
|
||
gdbscm_type_code (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
return scm_from_int (TYPE_CODE (type));
|
||
}
|
||
|
||
/* (type-fields <gdb:type>) -> list
|
||
Return a list of all fields. Each element is a <gdb:field> object.
|
||
This also supports arrays, we return a field list of one element,
|
||
the range type. */
|
||
|
||
static SCM
|
||
gdbscm_type_fields (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
struct type *containing_type;
|
||
SCM containing_type_scm, result;
|
||
int i;
|
||
|
||
containing_type = tyscm_get_composite (type);
|
||
if (containing_type == NULL)
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self,
|
||
_(not_composite_error));
|
||
|
||
/* If SELF is a typedef or reference, we want the underlying type,
|
||
which is what tyscm_get_composite returns. */
|
||
if (containing_type == type)
|
||
containing_type_scm = self;
|
||
else
|
||
containing_type_scm = tyscm_scm_from_type (containing_type);
|
||
|
||
result = SCM_EOL;
|
||
for (i = 0; i < TYPE_NFIELDS (containing_type); ++i)
|
||
result = scm_cons (tyscm_make_field_smob (containing_type_scm, i), result);
|
||
|
||
return scm_reverse_x (result, SCM_EOL);
|
||
}
|
||
|
||
/* (type-tag <gdb:type>) -> string
|
||
Return the type's tag, or #f. */
|
||
|
||
static SCM
|
||
gdbscm_type_tag (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
if (!TYPE_TAG_NAME (type))
|
||
return SCM_BOOL_F;
|
||
return gdbscm_scm_from_c_string (TYPE_TAG_NAME (type));
|
||
}
|
||
|
||
/* (type-name <gdb:type>) -> string
|
||
Return the type's name, or #f. */
|
||
|
||
static SCM
|
||
gdbscm_type_name (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
if (!TYPE_NAME (type))
|
||
return SCM_BOOL_F;
|
||
return gdbscm_scm_from_c_string (TYPE_NAME (type));
|
||
}
|
||
|
||
/* (type-print-name <gdb:type>) -> string
|
||
Return the print name of type.
|
||
TODO: template support elided for now. */
|
||
|
||
static SCM
|
||
gdbscm_type_print_name (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
std::string thetype = tyscm_type_name (type);
|
||
SCM result = gdbscm_scm_from_c_string (thetype.c_str ());
|
||
|
||
return result;
|
||
}
|
||
|
||
/* (type-sizeof <gdb:type>) -> integer
|
||
Return the size of the type represented by SELF, in bytes. */
|
||
|
||
static SCM
|
||
gdbscm_type_sizeof (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
TRY
|
||
{
|
||
check_typedef (type);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
}
|
||
END_CATCH
|
||
|
||
/* Ignore exceptions. */
|
||
|
||
return scm_from_long (TYPE_LENGTH (type));
|
||
}
|
||
|
||
/* (type-strip-typedefs <gdb:type>) -> <gdb:type>
|
||
Return the type, stripped of typedefs. */
|
||
|
||
static SCM
|
||
gdbscm_type_strip_typedefs (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
TRY
|
||
{
|
||
type = check_typedef (type);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return tyscm_scm_from_type (type);
|
||
}
|
||
|
||
/* Strip typedefs and pointers/reference from a type. Then check that
|
||
it is a struct, union, or enum type. If not, return NULL. */
|
||
|
||
static struct type *
|
||
tyscm_get_composite (struct type *type)
|
||
{
|
||
|
||
for (;;)
|
||
{
|
||
TRY
|
||
{
|
||
type = check_typedef (type);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
if (TYPE_CODE (type) != TYPE_CODE_PTR
|
||
&& TYPE_CODE (type) != TYPE_CODE_REF)
|
||
break;
|
||
type = TYPE_TARGET_TYPE (type);
|
||
}
|
||
|
||
/* If this is not a struct, union, or enum type, raise TypeError
|
||
exception. */
|
||
if (TYPE_CODE (type) != TYPE_CODE_STRUCT
|
||
&& TYPE_CODE (type) != TYPE_CODE_UNION
|
||
&& TYPE_CODE (type) != TYPE_CODE_ENUM)
|
||
return NULL;
|
||
|
||
return type;
|
||
}
|
||
|
||
/* Helper for tyscm_array and tyscm_vector. */
|
||
|
||
static SCM
|
||
tyscm_array_1 (SCM self, SCM n1_scm, SCM n2_scm, int is_vector,
|
||
const char *func_name)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, func_name);
|
||
struct type *type = t_smob->type;
|
||
long n1, n2 = 0;
|
||
struct type *array = NULL;
|
||
|
||
gdbscm_parse_function_args (func_name, SCM_ARG2, NULL, "l|l",
|
||
n1_scm, &n1, n2_scm, &n2);
|
||
|
||
if (SCM_UNBNDP (n2_scm))
|
||
{
|
||
n2 = n1;
|
||
n1 = 0;
|
||
}
|
||
|
||
if (n2 < n1 - 1) /* Note: An empty array has n2 == n1 - 1. */
|
||
{
|
||
gdbscm_out_of_range_error (func_name, SCM_ARG3,
|
||
scm_cons (scm_from_long (n1),
|
||
scm_from_long (n2)),
|
||
_("Array length must not be negative"));
|
||
}
|
||
|
||
TRY
|
||
{
|
||
array = lookup_array_range_type (type, n1, n2);
|
||
if (is_vector)
|
||
make_vector_type (array);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return tyscm_scm_from_type (array);
|
||
}
|
||
|
||
/* (type-array <gdb:type> [low-bound] high-bound) -> <gdb:type>
|
||
The array has indices [low-bound,high-bound].
|
||
If low-bound is not provided zero is used.
|
||
Return an array type.
|
||
|
||
IWBN if the one argument version specified a size, not the high bound.
|
||
It's too easy to pass one argument thinking it is the size of the array.
|
||
The current semantics are for compatibility with the Python version.
|
||
Later we can add #:size. */
|
||
|
||
static SCM
|
||
gdbscm_type_array (SCM self, SCM n1, SCM n2)
|
||
{
|
||
return tyscm_array_1 (self, n1, n2, 0, FUNC_NAME);
|
||
}
|
||
|
||
/* (type-vector <gdb:type> [low-bound] high-bound) -> <gdb:type>
|
||
The array has indices [low-bound,high-bound].
|
||
If low-bound is not provided zero is used.
|
||
Return a vector type.
|
||
|
||
IWBN if the one argument version specified a size, not the high bound.
|
||
It's too easy to pass one argument thinking it is the size of the array.
|
||
The current semantics are for compatibility with the Python version.
|
||
Later we can add #:size. */
|
||
|
||
static SCM
|
||
gdbscm_type_vector (SCM self, SCM n1, SCM n2)
|
||
{
|
||
return tyscm_array_1 (self, n1, n2, 1, FUNC_NAME);
|
||
}
|
||
|
||
/* (type-pointer <gdb:type>) -> <gdb:type>
|
||
Return a <gdb:type> object which represents a pointer to SELF. */
|
||
|
||
static SCM
|
||
gdbscm_type_pointer (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
TRY
|
||
{
|
||
type = lookup_pointer_type (type);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return tyscm_scm_from_type (type);
|
||
}
|
||
|
||
/* (type-range <gdb:type>) -> (low high)
|
||
Return the range of a type represented by SELF. The return type is
|
||
a list. The first element is the low bound, and the second element
|
||
is the high bound. */
|
||
|
||
static SCM
|
||
gdbscm_type_range (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
SCM low_scm, high_scm;
|
||
/* Initialize these to appease GCC warnings. */
|
||
LONGEST low = 0, high = 0;
|
||
|
||
SCM_ASSERT_TYPE (TYPE_CODE (type) == TYPE_CODE_ARRAY
|
||
|| TYPE_CODE (type) == TYPE_CODE_STRING
|
||
|| TYPE_CODE (type) == TYPE_CODE_RANGE,
|
||
self, SCM_ARG1, FUNC_NAME, _("ranged type"));
|
||
|
||
switch (TYPE_CODE (type))
|
||
{
|
||
case TYPE_CODE_ARRAY:
|
||
case TYPE_CODE_STRING:
|
||
low = TYPE_LOW_BOUND (TYPE_INDEX_TYPE (type));
|
||
high = TYPE_HIGH_BOUND (TYPE_INDEX_TYPE (type));
|
||
break;
|
||
case TYPE_CODE_RANGE:
|
||
low = TYPE_LOW_BOUND (type);
|
||
high = TYPE_HIGH_BOUND (type);
|
||
break;
|
||
}
|
||
|
||
low_scm = gdbscm_scm_from_longest (low);
|
||
high_scm = gdbscm_scm_from_longest (high);
|
||
|
||
return scm_list_2 (low_scm, high_scm);
|
||
}
|
||
|
||
/* (type-reference <gdb:type>) -> <gdb:type>
|
||
Return a <gdb:type> object which represents a reference to SELF. */
|
||
|
||
static SCM
|
||
gdbscm_type_reference (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
TRY
|
||
{
|
||
type = lookup_lvalue_reference_type (type);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return tyscm_scm_from_type (type);
|
||
}
|
||
|
||
/* (type-target <gdb:type>) -> <gdb:type>
|
||
Return a <gdb:type> object which represents the target type of SELF. */
|
||
|
||
static SCM
|
||
gdbscm_type_target (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
SCM_ASSERT (TYPE_TARGET_TYPE (type), self, SCM_ARG1, FUNC_NAME);
|
||
|
||
return tyscm_scm_from_type (TYPE_TARGET_TYPE (type));
|
||
}
|
||
|
||
/* (type-const <gdb:type>) -> <gdb:type>
|
||
Return a const-qualified type variant. */
|
||
|
||
static SCM
|
||
gdbscm_type_const (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
TRY
|
||
{
|
||
type = make_cv_type (1, 0, type, NULL);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return tyscm_scm_from_type (type);
|
||
}
|
||
|
||
/* (type-volatile <gdb:type>) -> <gdb:type>
|
||
Return a volatile-qualified type variant. */
|
||
|
||
static SCM
|
||
gdbscm_type_volatile (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
TRY
|
||
{
|
||
type = make_cv_type (0, 1, type, NULL);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return tyscm_scm_from_type (type);
|
||
}
|
||
|
||
/* (type-unqualified <gdb:type>) -> <gdb:type>
|
||
Return an unqualified type variant. */
|
||
|
||
static SCM
|
||
gdbscm_type_unqualified (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
TRY
|
||
{
|
||
type = make_cv_type (0, 0, type, NULL);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
GDBSCM_HANDLE_GDB_EXCEPTION (except);
|
||
}
|
||
END_CATCH
|
||
|
||
return tyscm_scm_from_type (type);
|
||
}
|
||
|
||
/* Field related accessors of types. */
|
||
|
||
/* (type-num-fields <gdb:type>) -> integer
|
||
Return number of fields. */
|
||
|
||
static SCM
|
||
gdbscm_type_num_fields (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
|
||
type = tyscm_get_composite (type);
|
||
if (type == NULL)
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self,
|
||
_(not_composite_error));
|
||
|
||
return scm_from_long (TYPE_NFIELDS (type));
|
||
}
|
||
|
||
/* (type-field <gdb:type> string) -> <gdb:field>
|
||
Return the <gdb:field> object for the field named by the argument. */
|
||
|
||
static SCM
|
||
gdbscm_type_field (SCM self, SCM field_scm)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
char *field;
|
||
int i;
|
||
struct cleanup *cleanups;
|
||
|
||
SCM_ASSERT_TYPE (scm_is_string (field_scm), field_scm, SCM_ARG2, FUNC_NAME,
|
||
_("string"));
|
||
|
||
/* We want just fields of this type, not of base types, so instead of
|
||
using lookup_struct_elt_type, portions of that function are
|
||
copied here. */
|
||
|
||
type = tyscm_get_composite (type);
|
||
if (type == NULL)
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self,
|
||
_(not_composite_error));
|
||
|
||
field = gdbscm_scm_to_c_string (field_scm);
|
||
cleanups = make_cleanup (xfree, field);
|
||
|
||
for (i = 0; i < TYPE_NFIELDS (type); i++)
|
||
{
|
||
const char *t_field_name = TYPE_FIELD_NAME (type, i);
|
||
|
||
if (t_field_name && (strcmp_iw (t_field_name, field) == 0))
|
||
{
|
||
do_cleanups (cleanups);
|
||
return tyscm_make_field_smob (self, i);
|
||
}
|
||
}
|
||
|
||
do_cleanups (cleanups);
|
||
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, field_scm,
|
||
_("Unknown field"));
|
||
}
|
||
|
||
/* (type-has-field? <gdb:type> string) -> boolean
|
||
Return boolean indicating if type SELF has FIELD_SCM (a string). */
|
||
|
||
static SCM
|
||
gdbscm_type_has_field_p (SCM self, SCM field_scm)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
char *field;
|
||
int i;
|
||
struct cleanup *cleanups;
|
||
|
||
SCM_ASSERT_TYPE (scm_is_string (field_scm), field_scm, SCM_ARG2, FUNC_NAME,
|
||
_("string"));
|
||
|
||
/* We want just fields of this type, not of base types, so instead of
|
||
using lookup_struct_elt_type, portions of that function are
|
||
copied here. */
|
||
|
||
type = tyscm_get_composite (type);
|
||
if (type == NULL)
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self,
|
||
_(not_composite_error));
|
||
|
||
field = gdbscm_scm_to_c_string (field_scm);
|
||
cleanups = make_cleanup (xfree, field);
|
||
|
||
for (i = 0; i < TYPE_NFIELDS (type); i++)
|
||
{
|
||
const char *t_field_name = TYPE_FIELD_NAME (type, i);
|
||
|
||
if (t_field_name && (strcmp_iw (t_field_name, field) == 0))
|
||
{
|
||
do_cleanups (cleanups);
|
||
return SCM_BOOL_T;
|
||
}
|
||
}
|
||
|
||
do_cleanups (cleanups);
|
||
|
||
return SCM_BOOL_F;
|
||
}
|
||
|
||
/* (make-field-iterator <gdb:type>) -> <gdb:iterator>
|
||
Make a field iterator object. */
|
||
|
||
static SCM
|
||
gdbscm_make_field_iterator (SCM self)
|
||
{
|
||
type_smob *t_smob
|
||
= tyscm_get_type_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct type *type = t_smob->type;
|
||
struct type *containing_type;
|
||
SCM containing_type_scm;
|
||
|
||
containing_type = tyscm_get_composite (type);
|
||
if (containing_type == NULL)
|
||
gdbscm_out_of_range_error (FUNC_NAME, SCM_ARG1, self,
|
||
_(not_composite_error));
|
||
|
||
/* If SELF is a typedef or reference, we want the underlying type,
|
||
which is what tyscm_get_composite returns. */
|
||
if (containing_type == type)
|
||
containing_type_scm = self;
|
||
else
|
||
containing_type_scm = tyscm_scm_from_type (containing_type);
|
||
|
||
return gdbscm_make_iterator (containing_type_scm, scm_from_int (0),
|
||
tyscm_next_field_x_proc);
|
||
}
|
||
|
||
/* (type-next-field! <gdb:iterator>) -> <gdb:field>
|
||
Return the next field in the iteration through the list of fields of the
|
||
type, or (end-of-iteration).
|
||
SELF is a <gdb:iterator> object created by gdbscm_make_field_iterator.
|
||
This is the next! <gdb:iterator> function, not exported to the user. */
|
||
|
||
static SCM
|
||
gdbscm_type_next_field_x (SCM self)
|
||
{
|
||
iterator_smob *i_smob;
|
||
type_smob *t_smob;
|
||
struct type *type;
|
||
SCM it_scm, result, progress, object;
|
||
int field;
|
||
|
||
it_scm = itscm_get_iterator_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
i_smob = (iterator_smob *) SCM_SMOB_DATA (it_scm);
|
||
object = itscm_iterator_smob_object (i_smob);
|
||
progress = itscm_iterator_smob_progress (i_smob);
|
||
|
||
SCM_ASSERT_TYPE (tyscm_is_type (object), object,
|
||
SCM_ARG1, FUNC_NAME, type_smob_name);
|
||
t_smob = (type_smob *) SCM_SMOB_DATA (object);
|
||
type = t_smob->type;
|
||
|
||
SCM_ASSERT_TYPE (scm_is_signed_integer (progress,
|
||
0, TYPE_NFIELDS (type)),
|
||
progress, SCM_ARG1, FUNC_NAME, _("integer"));
|
||
field = scm_to_int (progress);
|
||
|
||
if (field < TYPE_NFIELDS (type))
|
||
{
|
||
result = tyscm_make_field_smob (object, field);
|
||
itscm_set_iterator_smob_progress_x (i_smob, scm_from_int (field + 1));
|
||
return result;
|
||
}
|
||
|
||
return gdbscm_end_of_iteration ();
|
||
}
|
||
|
||
/* Field smob accessors. */
|
||
|
||
/* (field-name <gdb:field>) -> string
|
||
Return the name of this field or #f if there isn't one. */
|
||
|
||
static SCM
|
||
gdbscm_field_name (SCM self)
|
||
{
|
||
field_smob *f_smob
|
||
= tyscm_get_field_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct field *field = tyscm_field_smob_to_field (f_smob);
|
||
|
||
if (FIELD_NAME (*field))
|
||
return gdbscm_scm_from_c_string (FIELD_NAME (*field));
|
||
return SCM_BOOL_F;
|
||
}
|
||
|
||
/* (field-type <gdb:field>) -> <gdb:type>
|
||
Return the <gdb:type> object of the field or #f if there isn't one. */
|
||
|
||
static SCM
|
||
gdbscm_field_type (SCM self)
|
||
{
|
||
field_smob *f_smob
|
||
= tyscm_get_field_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct field *field = tyscm_field_smob_to_field (f_smob);
|
||
|
||
/* A field can have a NULL type in some situations. */
|
||
if (FIELD_TYPE (*field))
|
||
return tyscm_scm_from_type (FIELD_TYPE (*field));
|
||
return SCM_BOOL_F;
|
||
}
|
||
|
||
/* (field-enumval <gdb:field>) -> integer
|
||
For enum values, return its value as an integer. */
|
||
|
||
static SCM
|
||
gdbscm_field_enumval (SCM self)
|
||
{
|
||
field_smob *f_smob
|
||
= tyscm_get_field_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct field *field = tyscm_field_smob_to_field (f_smob);
|
||
struct type *type = tyscm_field_smob_containing_type (f_smob);
|
||
|
||
SCM_ASSERT_TYPE (TYPE_CODE (type) == TYPE_CODE_ENUM,
|
||
self, SCM_ARG1, FUNC_NAME, _("enum type"));
|
||
|
||
return scm_from_long (FIELD_ENUMVAL (*field));
|
||
}
|
||
|
||
/* (field-bitpos <gdb:field>) -> integer
|
||
For bitfields, return its offset in bits. */
|
||
|
||
static SCM
|
||
gdbscm_field_bitpos (SCM self)
|
||
{
|
||
field_smob *f_smob
|
||
= tyscm_get_field_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct field *field = tyscm_field_smob_to_field (f_smob);
|
||
struct type *type = tyscm_field_smob_containing_type (f_smob);
|
||
|
||
SCM_ASSERT_TYPE (TYPE_CODE (type) != TYPE_CODE_ENUM,
|
||
self, SCM_ARG1, FUNC_NAME, _("non-enum type"));
|
||
|
||
return scm_from_long (FIELD_BITPOS (*field));
|
||
}
|
||
|
||
/* (field-bitsize <gdb:field>) -> integer
|
||
Return the size of the field in bits. */
|
||
|
||
static SCM
|
||
gdbscm_field_bitsize (SCM self)
|
||
{
|
||
field_smob *f_smob
|
||
= tyscm_get_field_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct field *field = tyscm_field_smob_to_field (f_smob);
|
||
|
||
return scm_from_long (FIELD_BITPOS (*field));
|
||
}
|
||
|
||
/* (field-artificial? <gdb:field>) -> boolean
|
||
Return #t if field is artificial. */
|
||
|
||
static SCM
|
||
gdbscm_field_artificial_p (SCM self)
|
||
{
|
||
field_smob *f_smob
|
||
= tyscm_get_field_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct field *field = tyscm_field_smob_to_field (f_smob);
|
||
|
||
return scm_from_bool (FIELD_ARTIFICIAL (*field));
|
||
}
|
||
|
||
/* (field-baseclass? <gdb:field>) -> boolean
|
||
Return #t if field is a baseclass. */
|
||
|
||
static SCM
|
||
gdbscm_field_baseclass_p (SCM self)
|
||
{
|
||
field_smob *f_smob
|
||
= tyscm_get_field_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
|
||
struct field *field = tyscm_field_smob_to_field (f_smob);
|
||
struct type *type = tyscm_field_smob_containing_type (f_smob);
|
||
|
||
if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
||
return scm_from_bool (f_smob->field_num < TYPE_N_BASECLASSES (type));
|
||
return SCM_BOOL_F;
|
||
}
|
||
|
||
/* Return the type named TYPE_NAME in BLOCK.
|
||
Returns NULL if not found.
|
||
This routine does not throw an error. */
|
||
|
||
static struct type *
|
||
tyscm_lookup_typename (const char *type_name, const struct block *block)
|
||
{
|
||
struct type *type = NULL;
|
||
|
||
TRY
|
||
{
|
||
if (startswith (type_name, "struct "))
|
||
type = lookup_struct (type_name + 7, NULL);
|
||
else if (startswith (type_name, "union "))
|
||
type = lookup_union (type_name + 6, NULL);
|
||
else if (startswith (type_name, "enum "))
|
||
type = lookup_enum (type_name + 5, NULL);
|
||
else
|
||
type = lookup_typename (current_language, get_current_arch (),
|
||
type_name, block, 0);
|
||
}
|
||
CATCH (except, RETURN_MASK_ALL)
|
||
{
|
||
return NULL;
|
||
}
|
||
END_CATCH
|
||
|
||
return type;
|
||
}
|
||
|
||
/* (lookup-type name [#:block <gdb:block>]) -> <gdb:type>
|
||
TODO: legacy template support left out until needed. */
|
||
|
||
static SCM
|
||
gdbscm_lookup_type (SCM name_scm, SCM rest)
|
||
{
|
||
SCM keywords[] = { block_keyword, SCM_BOOL_F };
|
||
char *name;
|
||
SCM block_scm = SCM_BOOL_F;
|
||
int block_arg_pos = -1;
|
||
const struct block *block = NULL;
|
||
struct type *type;
|
||
|
||
gdbscm_parse_function_args (FUNC_NAME, SCM_ARG1, keywords, "s#O",
|
||
name_scm, &name,
|
||
rest, &block_arg_pos, &block_scm);
|
||
|
||
if (block_arg_pos != -1)
|
||
{
|
||
SCM exception;
|
||
|
||
block = bkscm_scm_to_block (block_scm, block_arg_pos, FUNC_NAME,
|
||
&exception);
|
||
if (block == NULL)
|
||
{
|
||
xfree (name);
|
||
gdbscm_throw (exception);
|
||
}
|
||
}
|
||
type = tyscm_lookup_typename (name, block);
|
||
xfree (name);
|
||
|
||
if (type != NULL)
|
||
return tyscm_scm_from_type (type);
|
||
return SCM_BOOL_F;
|
||
}
|
||
|
||
/* Initialize the Scheme type code. */
|
||
|
||
|
||
static const scheme_integer_constant type_integer_constants[] =
|
||
{
|
||
#define X(SYM) { #SYM, SYM }
|
||
X (TYPE_CODE_BITSTRING),
|
||
X (TYPE_CODE_PTR),
|
||
X (TYPE_CODE_ARRAY),
|
||
X (TYPE_CODE_STRUCT),
|
||
X (TYPE_CODE_UNION),
|
||
X (TYPE_CODE_ENUM),
|
||
X (TYPE_CODE_FLAGS),
|
||
X (TYPE_CODE_FUNC),
|
||
X (TYPE_CODE_INT),
|
||
X (TYPE_CODE_FLT),
|
||
X (TYPE_CODE_VOID),
|
||
X (TYPE_CODE_SET),
|
||
X (TYPE_CODE_RANGE),
|
||
X (TYPE_CODE_STRING),
|
||
X (TYPE_CODE_ERROR),
|
||
X (TYPE_CODE_METHOD),
|
||
X (TYPE_CODE_METHODPTR),
|
||
X (TYPE_CODE_MEMBERPTR),
|
||
X (TYPE_CODE_REF),
|
||
X (TYPE_CODE_CHAR),
|
||
X (TYPE_CODE_BOOL),
|
||
X (TYPE_CODE_COMPLEX),
|
||
X (TYPE_CODE_TYPEDEF),
|
||
X (TYPE_CODE_NAMESPACE),
|
||
X (TYPE_CODE_DECFLOAT),
|
||
X (TYPE_CODE_INTERNAL_FUNCTION),
|
||
#undef X
|
||
|
||
END_INTEGER_CONSTANTS
|
||
};
|
||
|
||
static const scheme_function type_functions[] =
|
||
{
|
||
{ "type?", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_p),
|
||
"\
|
||
Return #t if the object is a <gdb:type> object." },
|
||
|
||
{ "lookup-type", 1, 0, 1, as_a_scm_t_subr (gdbscm_lookup_type),
|
||
"\
|
||
Return the <gdb:type> object representing string or #f if not found.\n\
|
||
If block is given then the type is looked for in that block.\n\
|
||
\n\
|
||
Arguments: string [#:block <gdb:block>]" },
|
||
|
||
{ "type-code", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_code),
|
||
"\
|
||
Return the code of the type" },
|
||
|
||
{ "type-tag", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_tag),
|
||
"\
|
||
Return the tag name of the type, or #f if there isn't one." },
|
||
|
||
{ "type-name", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_name),
|
||
"\
|
||
Return the name of the type as a string, or #f if there isn't one." },
|
||
|
||
{ "type-print-name", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_print_name),
|
||
"\
|
||
Return the print name of the type as a string." },
|
||
|
||
{ "type-sizeof", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_sizeof),
|
||
"\
|
||
Return the size of the type, in bytes." },
|
||
|
||
{ "type-strip-typedefs", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_type_strip_typedefs),
|
||
"\
|
||
Return a type formed by stripping the type of all typedefs." },
|
||
|
||
{ "type-array", 2, 1, 0, as_a_scm_t_subr (gdbscm_type_array),
|
||
"\
|
||
Return a type representing an array of objects of the type.\n\
|
||
\n\
|
||
Arguments: <gdb:type> [low-bound] high-bound\n\
|
||
If low-bound is not provided zero is used.\n\
|
||
N.B. If only the high-bound parameter is specified, it is not\n\
|
||
the array size.\n\
|
||
Valid bounds for array indices are [low-bound,high-bound]." },
|
||
|
||
{ "type-vector", 2, 1, 0, as_a_scm_t_subr (gdbscm_type_vector),
|
||
"\
|
||
Return a type representing a vector of objects of the type.\n\
|
||
Vectors differ from arrays in that if the current language has C-style\n\
|
||
arrays, vectors don't decay to a pointer to the first element.\n\
|
||
They are first class values.\n\
|
||
\n\
|
||
Arguments: <gdb:type> [low-bound] high-bound\n\
|
||
If low-bound is not provided zero is used.\n\
|
||
N.B. If only the high-bound parameter is specified, it is not\n\
|
||
the array size.\n\
|
||
Valid bounds for array indices are [low-bound,high-bound]." },
|
||
|
||
{ "type-pointer", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_pointer),
|
||
"\
|
||
Return a type of pointer to the type." },
|
||
|
||
{ "type-range", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_range),
|
||
"\
|
||
Return (low high) representing the range for the type." },
|
||
|
||
{ "type-reference", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_reference),
|
||
"\
|
||
Return a type of reference to the type." },
|
||
|
||
{ "type-target", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_target),
|
||
"\
|
||
Return the target type of the type." },
|
||
|
||
{ "type-const", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_const),
|
||
"\
|
||
Return a const variant of the type." },
|
||
|
||
{ "type-volatile", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_volatile),
|
||
"\
|
||
Return a volatile variant of the type." },
|
||
|
||
{ "type-unqualified", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_unqualified),
|
||
"\
|
||
Return a variant of the type without const or volatile attributes." },
|
||
|
||
{ "type-num-fields", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_num_fields),
|
||
"\
|
||
Return the number of fields of the type." },
|
||
|
||
{ "type-fields", 1, 0, 0, as_a_scm_t_subr (gdbscm_type_fields),
|
||
"\
|
||
Return the list of <gdb:field> objects of fields of the type." },
|
||
|
||
{ "make-field-iterator", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_make_field_iterator),
|
||
"\
|
||
Return a <gdb:iterator> object for iterating over the fields of the type." },
|
||
|
||
{ "type-field", 2, 0, 0, as_a_scm_t_subr (gdbscm_type_field),
|
||
"\
|
||
Return the field named by string of the type.\n\
|
||
\n\
|
||
Arguments: <gdb:type> string" },
|
||
|
||
{ "type-has-field?", 2, 0, 0, as_a_scm_t_subr (gdbscm_type_has_field_p),
|
||
"\
|
||
Return #t if the type has field named string.\n\
|
||
\n\
|
||
Arguments: <gdb:type> string" },
|
||
|
||
{ "field?", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_p),
|
||
"\
|
||
Return #t if the object is a <gdb:field> object." },
|
||
|
||
{ "field-name", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_name),
|
||
"\
|
||
Return the name of the field." },
|
||
|
||
{ "field-type", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_type),
|
||
"\
|
||
Return the type of the field." },
|
||
|
||
{ "field-enumval", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_enumval),
|
||
"\
|
||
Return the enum value represented by the field." },
|
||
|
||
{ "field-bitpos", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_bitpos),
|
||
"\
|
||
Return the offset in bits of the field in its containing type." },
|
||
|
||
{ "field-bitsize", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_bitsize),
|
||
"\
|
||
Return the size of the field in bits." },
|
||
|
||
{ "field-artificial?", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_artificial_p),
|
||
"\
|
||
Return #t if the field is artificial." },
|
||
|
||
{ "field-baseclass?", 1, 0, 0, as_a_scm_t_subr (gdbscm_field_baseclass_p),
|
||
"\
|
||
Return #t if the field is a baseclass." },
|
||
|
||
END_FUNCTIONS
|
||
};
|
||
|
||
void
|
||
gdbscm_initialize_types (void)
|
||
{
|
||
type_smob_tag = gdbscm_make_smob_type (type_smob_name, sizeof (type_smob));
|
||
scm_set_smob_free (type_smob_tag, tyscm_free_type_smob);
|
||
scm_set_smob_print (type_smob_tag, tyscm_print_type_smob);
|
||
scm_set_smob_equalp (type_smob_tag, tyscm_equal_p_type_smob);
|
||
|
||
field_smob_tag = gdbscm_make_smob_type (field_smob_name,
|
||
sizeof (field_smob));
|
||
scm_set_smob_print (field_smob_tag, tyscm_print_field_smob);
|
||
|
||
gdbscm_define_integer_constants (type_integer_constants, 1);
|
||
gdbscm_define_functions (type_functions, 1);
|
||
|
||
/* This function is "private". */
|
||
tyscm_next_field_x_proc
|
||
= scm_c_define_gsubr ("%type-next-field!", 1, 0, 0,
|
||
as_a_scm_t_subr (gdbscm_type_next_field_x));
|
||
scm_set_procedure_property_x (tyscm_next_field_x_proc,
|
||
gdbscm_documentation_symbol,
|
||
gdbscm_scm_from_c_string ("\
|
||
Internal function to assist the type fields iterator."));
|
||
|
||
block_keyword = scm_from_latin1_keyword ("block");
|
||
|
||
/* Register an objfile "free" callback so we can properly copy types
|
||
associated with the objfile when it's about to be deleted. */
|
||
tyscm_objfile_data_key
|
||
= register_objfile_data_with_cleanup (save_objfile_types, NULL);
|
||
|
||
global_types_map = gdbscm_create_eqable_gsmob_ptr_map (tyscm_hash_type_smob,
|
||
tyscm_eq_type_smob);
|
||
}
|