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238 lines
7.0 KiB
C
238 lines
7.0 KiB
C
/* Demangler component interface functions.
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Copyright (C) 2004-2018 Free Software Foundation, Inc.
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Written by Ian Lance Taylor <ian@wasabisystems.com>.
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This file is part of the libiberty library, which is part of GCC.
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This file 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 2 of the License, or
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(at your option) any later version.
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In addition to the permissions in the GNU General Public License, the
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Free Software Foundation gives you unlimited permission to link the
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compiled version of this file into combinations with other programs,
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and to distribute those combinations without any restriction coming
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from the use of this file. (The General Public License restrictions
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do apply in other respects; for example, they cover modification of
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the file, and distribution when not linked into a combined
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executable.)
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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, write to the Free Software
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Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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/* This file implements a few interface functions which are provided
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for use with struct demangle_component trees. These functions are
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declared in demangle.h. These functions are closely tied to the
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demangler code in cp-demangle.c, and other interface functions can
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be found in that file. We put these functions in a separate file
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because they are not needed by the demangler, and so we avoid
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having them pulled in by programs which only need the
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demangler. */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#include "ansidecl.h"
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#include "libiberty.h"
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#include "demangle.h"
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#include "cp-demangle.h"
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/* Fill in most component types. */
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int
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cplus_demangle_fill_component (struct demangle_component *p,
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enum demangle_component_type type,
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struct demangle_component *left,
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struct demangle_component *right)
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{
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if (p == NULL)
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return 0;
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switch (type)
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{
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case DEMANGLE_COMPONENT_QUAL_NAME:
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case DEMANGLE_COMPONENT_LOCAL_NAME:
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case DEMANGLE_COMPONENT_TYPED_NAME:
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case DEMANGLE_COMPONENT_TEMPLATE:
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case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
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case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
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case DEMANGLE_COMPONENT_FUNCTION_TYPE:
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case DEMANGLE_COMPONENT_ARRAY_TYPE:
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case DEMANGLE_COMPONENT_PTRMEM_TYPE:
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case DEMANGLE_COMPONENT_ARGLIST:
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case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
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case DEMANGLE_COMPONENT_UNARY:
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case DEMANGLE_COMPONENT_BINARY:
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case DEMANGLE_COMPONENT_BINARY_ARGS:
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case DEMANGLE_COMPONENT_TRINARY:
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case DEMANGLE_COMPONENT_TRINARY_ARG1:
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case DEMANGLE_COMPONENT_TRINARY_ARG2:
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case DEMANGLE_COMPONENT_LITERAL:
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case DEMANGLE_COMPONENT_LITERAL_NEG:
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break;
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/* These component types only have one subtree. */
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case DEMANGLE_COMPONENT_VTABLE:
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case DEMANGLE_COMPONENT_VTT:
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case DEMANGLE_COMPONENT_TYPEINFO:
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case DEMANGLE_COMPONENT_TYPEINFO_NAME:
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case DEMANGLE_COMPONENT_TYPEINFO_FN:
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case DEMANGLE_COMPONENT_THUNK:
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case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
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case DEMANGLE_COMPONENT_COVARIANT_THUNK:
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case DEMANGLE_COMPONENT_JAVA_CLASS:
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case DEMANGLE_COMPONENT_GUARD:
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case DEMANGLE_COMPONENT_REFTEMP:
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case DEMANGLE_COMPONENT_RESTRICT:
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case DEMANGLE_COMPONENT_VOLATILE:
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case DEMANGLE_COMPONENT_CONST:
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case DEMANGLE_COMPONENT_RESTRICT_THIS:
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case DEMANGLE_COMPONENT_VOLATILE_THIS:
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case DEMANGLE_COMPONENT_CONST_THIS:
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case DEMANGLE_COMPONENT_POINTER:
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case DEMANGLE_COMPONENT_REFERENCE:
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case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
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case DEMANGLE_COMPONENT_COMPLEX:
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case DEMANGLE_COMPONENT_IMAGINARY:
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case DEMANGLE_COMPONENT_VENDOR_TYPE:
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case DEMANGLE_COMPONENT_CAST:
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case DEMANGLE_COMPONENT_CONVERSION:
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if (right != NULL)
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return 0;
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break;
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default:
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/* Other types do not use subtrees. */
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return 0;
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}
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p->type = type;
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p->u.s_binary.left = left;
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p->u.s_binary.right = right;
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p->d_printing = 0;
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return 1;
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}
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/* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE. */
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int
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cplus_demangle_fill_builtin_type (struct demangle_component *p,
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const char *type_name)
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{
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int len;
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unsigned int i;
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if (p == NULL || type_name == NULL)
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return 0;
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len = strlen (type_name);
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for (i = 0; i < D_BUILTIN_TYPE_COUNT; ++i)
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{
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if (len == cplus_demangle_builtin_types[i].len
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&& strcmp (type_name, cplus_demangle_builtin_types[i].name) == 0)
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{
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p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE;
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p->u.s_builtin.type = &cplus_demangle_builtin_types[i];
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p->d_printing = 0;
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return 1;
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}
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}
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return 0;
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}
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/* Fill in a DEMANGLE_COMPONENT_OPERATOR. */
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int
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cplus_demangle_fill_operator (struct demangle_component *p,
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const char *opname, int args)
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{
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int len;
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unsigned int i;
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if (p == NULL || opname == NULL)
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return 0;
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len = strlen (opname);
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for (i = 0; cplus_demangle_operators[i].name != NULL; ++i)
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{
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if (len == cplus_demangle_operators[i].len
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&& args == cplus_demangle_operators[i].args
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&& strcmp (opname, cplus_demangle_operators[i].name) == 0)
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{
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p->type = DEMANGLE_COMPONENT_OPERATOR;
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p->u.s_operator.op = &cplus_demangle_operators[i];
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p->d_printing = 0;
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return 1;
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}
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}
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return 0;
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}
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/* Translate a mangled name into components. */
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struct demangle_component *
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cplus_demangle_v3_components (const char *mangled, int options, void **mem)
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{
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size_t len;
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int type;
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struct d_info di;
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struct demangle_component *dc;
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len = strlen (mangled);
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if (mangled[0] == '_' && mangled[1] == 'Z')
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type = 0;
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else
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{
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if ((options & DMGL_TYPES) == 0)
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return NULL;
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type = 1;
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}
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cplus_demangle_init_info (mangled, options, len, &di);
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di.comps = ((struct demangle_component *)
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malloc (di.num_comps * sizeof (struct demangle_component)));
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di.subs = ((struct demangle_component **)
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malloc (di.num_subs * sizeof (struct demangle_component *)));
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if (di.comps == NULL || di.subs == NULL)
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{
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free (di.comps);
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free (di.subs);
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return NULL;
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}
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if (! type)
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dc = cplus_demangle_mangled_name (&di, 1);
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else
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dc = cplus_demangle_type (&di);
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/* If DMGL_PARAMS is set, then if we didn't consume the entire
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mangled string, then we didn't successfully demangle it. */
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if ((options & DMGL_PARAMS) != 0 && d_peek_char (&di) != '\0')
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dc = NULL;
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free (di.subs);
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if (dc != NULL)
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*mem = di.comps;
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else
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free (di.comps);
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return dc;
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}
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