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Diffstat (limited to 'gcc-4.7/libiberty/cp-demint.c')
| -rw-r--r-- | gcc-4.7/libiberty/cp-demint.c | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/gcc-4.7/libiberty/cp-demint.c b/gcc-4.7/libiberty/cp-demint.c new file mode 100644 index 000000000..1d1a77af7 --- /dev/null +++ b/gcc-4.7/libiberty/cp-demint.c @@ -0,0 +1,232 @@ +/* Demangler component interface functions. + Copyright (C) 2004 Free Software Foundation, Inc. + Written by Ian Lance Taylor <ian@wasabisystems.com>. + + This file is part of the libiberty library, which is part of GCC. + + This file 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 + (at your option) any later version. + + In addition to the permissions in the GNU General Public License, the + Free Software Foundation gives you unlimited permission to link the + compiled version of this file into combinations with other programs, + and to distribute those combinations without any restriction coming + from the use of this file. (The General Public License restrictions + do apply in other respects; for example, they cover modification of + the file, and distribution when not linked into a combined + executable.) + + This program 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 this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. +*/ + +/* This file implements a few interface functions which are provided + for use with struct demangle_component trees. These functions are + declared in demangle.h. These functions are closely tied to the + demangler code in cp-demangle.c, and other interface functions can + be found in that file. We put these functions in a separate file + because they are not needed by the demangler, and so we avoid + having them pulled in by programs which only need the + demangler. */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif +#ifdef HAVE_STRING_H +#include <string.h> +#endif + +#include "ansidecl.h" +#include "libiberty.h" +#include "demangle.h" +#include "cp-demangle.h" + +/* Fill in most component types. */ + +int +cplus_demangle_fill_component (struct demangle_component *p, + enum demangle_component_type type, + struct demangle_component *left, + struct demangle_component *right) +{ + if (p == NULL) + return 0; + switch (type) + { + case DEMANGLE_COMPONENT_QUAL_NAME: + case DEMANGLE_COMPONENT_LOCAL_NAME: + case DEMANGLE_COMPONENT_TYPED_NAME: + case DEMANGLE_COMPONENT_TEMPLATE: + case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE: + case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL: + case DEMANGLE_COMPONENT_FUNCTION_TYPE: + case DEMANGLE_COMPONENT_ARRAY_TYPE: + case DEMANGLE_COMPONENT_PTRMEM_TYPE: + case DEMANGLE_COMPONENT_ARGLIST: + case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST: + case DEMANGLE_COMPONENT_UNARY: + case DEMANGLE_COMPONENT_BINARY: + case DEMANGLE_COMPONENT_BINARY_ARGS: + case DEMANGLE_COMPONENT_TRINARY: + case DEMANGLE_COMPONENT_TRINARY_ARG1: + case DEMANGLE_COMPONENT_TRINARY_ARG2: + case DEMANGLE_COMPONENT_LITERAL: + case DEMANGLE_COMPONENT_LITERAL_NEG: + break; + + /* These component types only have one subtree. */ + case DEMANGLE_COMPONENT_VTABLE: + case DEMANGLE_COMPONENT_VTT: + case DEMANGLE_COMPONENT_TYPEINFO: + case DEMANGLE_COMPONENT_TYPEINFO_NAME: + case DEMANGLE_COMPONENT_TYPEINFO_FN: + case DEMANGLE_COMPONENT_THUNK: + case DEMANGLE_COMPONENT_VIRTUAL_THUNK: + case DEMANGLE_COMPONENT_COVARIANT_THUNK: + case DEMANGLE_COMPONENT_JAVA_CLASS: + case DEMANGLE_COMPONENT_GUARD: + case DEMANGLE_COMPONENT_REFTEMP: + case DEMANGLE_COMPONENT_RESTRICT: + case DEMANGLE_COMPONENT_VOLATILE: + case DEMANGLE_COMPONENT_CONST: + case DEMANGLE_COMPONENT_RESTRICT_THIS: + case DEMANGLE_COMPONENT_VOLATILE_THIS: + case DEMANGLE_COMPONENT_CONST_THIS: + case DEMANGLE_COMPONENT_POINTER: + case DEMANGLE_COMPONENT_REFERENCE: + case DEMANGLE_COMPONENT_COMPLEX: + case DEMANGLE_COMPONENT_IMAGINARY: + case DEMANGLE_COMPONENT_VENDOR_TYPE: + case DEMANGLE_COMPONENT_CAST: + if (right != NULL) + return 0; + break; + + default: + /* Other types do not use subtrees. */ + return 0; + } + + p->type = type; + p->u.s_binary.left = left; + p->u.s_binary.right = right; + + return 1; +} + +/* Fill in a DEMANGLE_COMPONENT_BUILTIN_TYPE. */ + +int +cplus_demangle_fill_builtin_type (struct demangle_component *p, + const char *type_name) +{ + int len; + unsigned int i; + + if (p == NULL || type_name == NULL) + return 0; + len = strlen (type_name); + for (i = 0; i < D_BUILTIN_TYPE_COUNT; ++i) + { + if (len == cplus_demangle_builtin_types[i].len + && strcmp (type_name, cplus_demangle_builtin_types[i].name) == 0) + { + p->type = DEMANGLE_COMPONENT_BUILTIN_TYPE; + p->u.s_builtin.type = &cplus_demangle_builtin_types[i]; + return 1; + } + } + return 0; +} + +/* Fill in a DEMANGLE_COMPONENT_OPERATOR. */ + +int +cplus_demangle_fill_operator (struct demangle_component *p, + const char *opname, int args) +{ + int len; + unsigned int i; + + if (p == NULL || opname == NULL) + return 0; + len = strlen (opname); + for (i = 0; cplus_demangle_operators[i].name != NULL; ++i) + { + if (len == cplus_demangle_operators[i].len + && args == cplus_demangle_operators[i].args + && strcmp (opname, cplus_demangle_operators[i].name) == 0) + { + p->type = DEMANGLE_COMPONENT_OPERATOR; + p->u.s_operator.op = &cplus_demangle_operators[i]; + return 1; + } + } + return 0; +} + +/* Translate a mangled name into components. */ + +struct demangle_component * +cplus_demangle_v3_components (const char *mangled, int options, void **mem) +{ + size_t len; + int type; + struct d_info di; + struct demangle_component *dc; + + len = strlen (mangled); + + if (mangled[0] == '_' && mangled[1] == 'Z') + type = 0; + else + { + if ((options & DMGL_TYPES) == 0) + return NULL; + type = 1; + } + + cplus_demangle_init_info (mangled, options, len, &di); + + di.comps = ((struct demangle_component *) + malloc (di.num_comps * sizeof (struct demangle_component))); + di.subs = ((struct demangle_component **) + malloc (di.num_subs * sizeof (struct demangle_component *))); + if (di.comps == NULL || di.subs == NULL) + { + free (di.comps); + free (di.subs); + return NULL; + } + + if (! type) + dc = cplus_demangle_mangled_name (&di, 1); + else + dc = cplus_demangle_type (&di); + + /* If DMGL_PARAMS is set, then if we didn't consume the entire + mangled string, then we didn't successfully demangle it. */ + if ((options & DMGL_PARAMS) != 0 && d_peek_char (&di) != '\0') + dc = NULL; + + free (di.subs); + + if (dc != NULL) + *mem = di.comps; + else + free (di.comps); + + return dc; +} |