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demangle.c
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/*
* Very simple (and incomplete by design) C++ name demangler.
*
* Copyright (C) 2015-2019, LG Electronics, Namhyung Kim <[email protected]>
*
* Released under the GPL v2 license (the C++ part).
*
* See https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling
*
* Rust demangler referred to https://github.com/alexcrichton/rustc-demangle
* which was released by MIT (or Apache) license.
*
* Copyright (c) 2014 Alex Crichton
*
* Permission is hereby granted, free of charge, to any
* person obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the
* Software without restriction, including without
* limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of
* the Software, and to permit persons to whom the Software
* is furnished to do so, subject to the following
* conditions:
*
* The above copyright notice and this permission notice
* shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF
* ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
* TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
* PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT
* SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR
* IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <stdlib.h>
/* This should be defined before #include "utils.h" */
#define PR_FMT "demangle"
#define PR_DOMAIN DBG_DEMANGLE
#include "utils/symbol.h"
#include "utils/utils.h"
#define MAX_DEBUG_DEPTH 128
enum symbol_demangler demangler = DEMANGLE_SIMPLE;
struct demangle_debug {
const char *func;
int level;
int pos;
};
struct demangle_data {
char *old;
char *new;
const char *func;
char *expected;
int line;
int pos;
int len;
int newpos;
int alloc;
int level;
int type;
int nr_dbg;
int templates;
bool type_info;
bool first_name;
bool ignore_disc;
struct demangle_debug debug[MAX_DEBUG_DEPTH];
};
static char dd_expbuf[2];
static int dd_eof(struct demangle_data *dd)
{
return dd->pos >= dd->len;
}
static char dd_peek(struct demangle_data *dd, int lookahead)
{
if (dd->pos + lookahead > dd->len)
return 0;
return dd->old[dd->pos + lookahead];
}
static char dd_curr(struct demangle_data *dd)
{
return dd_peek(dd, 0);
}
static void __dd_add_debug(struct demangle_data *dd, const char *func)
{
if (dd->nr_dbg < MAX_DEBUG_DEPTH && func) {
struct demangle_debug *dbg = &dd->debug[dd->nr_dbg++];
dbg->func = func;
dbg->level = dd->level;
dbg->pos = dd->pos;
}
}
static char __dd_consume_n(struct demangle_data *dd, int n, const char *dbg)
{
char c = dd_curr(dd);
if (dbg)
__dd_add_debug(dd, dbg);
if (dd->pos + n > dd->len)
return 0;
dd->pos += n;
return c;
}
static char __dd_consume(struct demangle_data *dd, const char *dbg)
{
return __dd_consume_n(dd, 1, dbg);
}
#define dd_consume(dd) __dd_consume(dd, __func__)
#define dd_consume_n(dd, n) __dd_consume_n(dd, n, __func__)
#define dd_add_debug(dd) __dd_add_debug(dd, __func__)
#define DD_DEBUG(dd, exp, inc) \
({ \
dd->func = __func__; \
dd->line = __LINE__ - 1; \
dd->pos += inc; \
dd->expected = exp; \
return -1; \
})
#define DD_DEBUG_CONSUME(dd, exp_c) \
({ \
if (dd_consume(dd) != exp_c) { \
if (!dd->expected) { \
dd->func = __func__; \
dd->line = __LINE__; \
dd->pos--; \
dd->expected = dd_expbuf; \
dd_expbuf[0] = exp_c; \
} \
return -1; \
} \
})
#define __DD_DEBUG_CONSUME(dd, exp_c) \
({ \
if (__dd_consume(dd, NULL) != exp_c) { \
if (!dd->expected) { \
dd->func = __func__; \
dd->line = __LINE__; \
dd->pos--; \
dd->expected = dd_expbuf; \
dd_expbuf[0] = exp_c; \
} \
return -1; \
} \
})
static void dd_debug_print(struct demangle_data *dd)
{
int i;
const char *expected = dd->expected;
if (expected == NULL) {
if (dd_eof(dd))
expected = "more input";
else
expected = "unknown input";
}
if (dd->func == NULL)
dd->func = "demangle";
if (dbg_domain[DBG_DEMANGLE] <= 3) {
pr_dbg3("demangle failed: %s\n", dd->old);
return;
}
pr_dbg4("simple demangle failed:%s%s\n%s\n%*c\n%s:%d: \"%s\" expected\n",
dd_eof(dd) ? " (EOF)" : "", dd->level ? " (not finished)" : "", dd->old,
dd->pos + 1, '^', dd->func, dd->line, expected);
pr_dbg4("current: %s (pos: %d/%d)\n", dd->new, dd->pos, dd->len);
for (i = 0; i < dd->nr_dbg; i++) {
struct demangle_debug *dbg = &dd->debug[i];
pr_dbg4(" [%02d] (%03d/%c%c) %*s%s\n", i, dbg->pos,
dbg->pos < dd->len ? dd->old[dbg->pos] : ' ',
dbg->pos + 1 < dd->len ? dd->old[dbg->pos + 1] : ' ', dbg->level * 2, "",
dbg->func);
}
}
static const struct {
char op[2];
char *name;
} ops[] = {
{ { 'n', 'w' }, " new" }, { { 'n', 'a' }, " new[]" }, { { 'd', 'l' }, " delete" },
{ { 'd', 'a' }, " delete[]" }, { { 'p', 's' }, "+" }, /* unary */
{ { 'n', 'g' }, "-" }, /* unary */
{ { 'a', 'd' }, "&" }, /* unary */
{ { 'd', 'e' }, "*" }, /* unary */
{ { 'c', 'o' }, "~" }, { { 'p', 'l' }, "+" }, { { 'm', 'i' }, "-" },
{ { 'm', 'l' }, "*" }, { { 'd', 'v' }, "/" }, { { 'r', 'm' }, "%" },
{ { 'a', 'n' }, "&" }, { { 'o', 'r' }, "|" }, { { 'e', 'o' }, "^" },
{ { 'a', 'S' }, "=" }, { { 'p', 'L' }, "+=" }, { { 'm', 'I' }, "-=" },
{ { 'm', 'L' }, "*=" }, { { 'd', 'V' }, "/=" }, { { 'r', 'M' }, "%=" },
{ { 'a', 'N' }, "&=" }, { { 'o', 'R' }, "|=" }, { { 'e', 'O' }, "^=" },
{ { 'l', 's' }, "<<" }, { { 'r', 's' }, ">>" }, { { 'l', 'S' }, "<<=" },
{ { 'r', 'S' }, ">>=" }, { { 'e', 'q' }, "==" }, { { 'n', 'e' }, "!=" },
{ { 'l', 't' }, "<" }, { { 'g', 't' }, ">" }, { { 'l', 'e' }, "<=" },
{ { 'g', 'e' }, ">=" }, { { 'n', 't' }, "!" }, { { 'a', 'a' }, "&&" },
{ { 'o', 'o' }, "||" }, { { 'p', 'p' }, "++" }, { { 'm', 'm' }, "--" },
{ { 'c', 'm' }, "," }, { { 'p', 'm' }, "->*" }, { { 'p', 't' }, "->" },
{ { 'c', 'l' }, "()" }, { { 'i', 'x' }, "[]" }, { { 'q', 'u' }, "?" },
{ { 'c', 'v' }, "(cast)" }, { { 'l', 'i' }, "\"\"" },
};
static const struct {
char code;
char *name;
} types[] = {
{ 'v', "void" }, { 'w', "wchar_t" },
{ 'b', "bool" }, { 'c', "char" },
{ 'a', "signed char" }, { 'h', "unsigned char" },
{ 's', "short" }, { 't', "unsigned short" },
{ 'i', "int" }, { 'j', "unsigned int" },
{ 'l', "long" }, { 'm', "unsigned long" },
{ 'x', "long long" }, { 'y', "unsigned long long" },
{ 'n', "__int128" }, { 'o', "unsigned __int128" },
{ 'f', "float" }, { 'd', "double" },
{ 'e', "long double" }, { 'g', "__float128" },
{ 'z', "..." },
};
static const struct {
char code;
char *name;
} std_abbrevs[] = {
{ 't', "std" },
{ 'a', "std::allocator" },
{ 'b', "std::basic_string" },
{ 's', "std::basic_string<>" },
{ 'i', "std::basic_istream" },
{ 'o', "std::basic_ostream" },
{ 'd', "std::basic_iostream" },
};
static const struct {
char *code; /* surrounded by $..$ */
char *punc;
} rust_mappings[] = {
{ "SP", "@" },
{ "BP", "*" },
{ "RF", "&" },
{ "LT", "<" },
{ "GT", ">" },
{ "LP", "(" },
{ "RP", ")" },
{ "C", "," },
/* some selected unicode characters */
{ "u20", " " },
{ "u22", "\"" },
{ "u27", "'" },
{ "u2b", "+" },
{ "u3b", ";" },
{ "u3d", "=" },
{ "u5b", "[" },
{ "u5d", "]" },
{ "u7b", "{" },
{ "u7d", "}" },
{ "u7e", "~" },
};
static int dd_encoding(struct demangle_data *dd);
static int dd_name(struct demangle_data *dd);
static int dd_local_name(struct demangle_data *dd);
static int dd_source_name(struct demangle_data *dd);
static int dd_operator_name(struct demangle_data *dd);
static int dd_nested_name(struct demangle_data *dd);
static int dd_unqualified_name(struct demangle_data *dd);
static int dd_type(struct demangle_data *dd);
static int dd_decltype(struct demangle_data *dd);
static int dd_expression(struct demangle_data *dd);
static int dd_expr_primary(struct demangle_data *dd);
static int dd_append_len(struct demangle_data *dd, char *str, int size)
{
if (dd->newpos + size >= dd->alloc) {
dd->alloc = ALIGN(dd->newpos + size + 1, 16);
dd->new = xrealloc(dd->new, dd->alloc);
}
/* copy including the last NUL byte (but usually not) */
strncpy(&dd->new[dd->newpos], str, size + 1);
dd->newpos += size;
dd->new[dd->newpos] = '\0';
return 0;
}
static int dd_append(struct demangle_data *dd, char *str)
{
return dd_append_len(dd, str, strlen(str));
}
static int dd_append_separator(struct demangle_data *dd, char *str)
{
if (!dd->first_name)
dd_append(dd, str);
dd->first_name = false;
return 0;
}
static int dd_number(struct demangle_data *dd)
{
char *str = &dd->old[dd->pos];
char *end;
int num;
if (dd_eof(dd))
return -1;
if (*str == 'n') {
/* negative number */
str++;
dd->pos++;
}
if (!isdigit(*str))
DD_DEBUG(dd, "digit", 0);
num = strtoul(str, &end, 0);
dd->pos += end - str;
return num;
}
static int dd_seq_id(struct demangle_data *dd)
{
char c = dd_curr(dd);
if (dd_eof(dd))
return -1;
/* just skip for now */
while (isdigit(c) || isupper(c)) {
dd_add_debug(dd);
c = dd->old[++dd->pos];
}
return 0;
}
static int dd_call_offset(struct demangle_data *dd)
{
char c = dd_curr(dd);
if (dd_eof(dd))
return -1;
if (c == 'h') {
dd_consume(dd);
if (dd_number(dd) < 0)
return -1;
__DD_DEBUG_CONSUME(dd, '_');
return 0;
}
if (c == 'v') {
dd_consume(dd);
if (dd_number(dd) < 0)
return -1;
__DD_DEBUG_CONSUME(dd, '_');
if (dd_number(dd) < 0)
return -1;
__DD_DEBUG_CONSUME(dd, '_');
return 0;
}
return -1;
}
static int dd_qualifier(struct demangle_data *dd)
{
char c = dd_curr(dd);
char qual[] = "rVKRO";
if (dd_eof(dd))
return -1;
/* qualifiers are optional and we ignore them */
if (strchr(qual, c))
dd_consume(dd);
return 0;
}
static int dd_initializer(struct demangle_data *dd)
{
char c0 = dd_consume(dd);
char c1 = __dd_consume(dd, NULL);
if (dd_eof(dd))
return -1;
if (c0 != 'p' || c1 != 'i')
DD_DEBUG(dd, "pi", -2);
dd->level++;
while (dd_curr(dd) != 'E') {
if (dd_expression(dd) < 0)
return -1;
}
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
return 0;
}
static int dd_abi_tag(struct demangle_data *dd)
{
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'B');
if (dd_source_name(dd) < 0)
return -1;
return 0;
}
static int dd_substitution(struct demangle_data *dd)
{
char c;
unsigned i;
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'S');
c = dd_curr(dd);
for (i = 0; i < ARRAY_SIZE(std_abbrevs); i++) {
if (c == std_abbrevs[i].code) {
__dd_consume(dd, NULL);
if (dd->type == 0 || dd->type_info) {
dd_append_separator(dd, "::");
dd_append(dd, std_abbrevs[i].name);
}
if (dd_curr(dd) == 'B')
dd_abi_tag(dd);
return 0;
}
}
dd_seq_id(dd);
__DD_DEBUG_CONSUME(dd, '_');
return 0;
}
static int dd_function_param(struct demangle_data *dd)
{
char c0 = dd_consume(dd);
char c1 = __dd_consume(dd, NULL);
if (dd_eof(dd))
return -1;
if (c0 != 'f' || (c1 != 'p' && c1 != 'L'))
DD_DEBUG(dd, "fp or fL", -2);
if (isdigit(dd_curr(dd))) {
dd_number(dd);
if (c1 == 'L')
__DD_DEBUG_CONSUME(dd, 'p');
}
dd_qualifier(dd);
if (isdigit(dd_curr(dd)))
dd_number(dd);
__DD_DEBUG_CONSUME(dd, '_');
return 0;
}
static int dd_template_param(struct demangle_data *dd)
{
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'T');
dd_number(dd);
__DD_DEBUG_CONSUME(dd, '_');
return 0;
}
static int dd_template_arg(struct demangle_data *dd)
{
char c = dd_curr(dd);
if (dd_eof(dd))
return -1;
if (c == 'X') {
dd_consume(dd);
dd->level++;
dd_expression(dd);
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
}
else if (c == 'L') {
if (dd_expr_primary(dd) < 0)
return -1;
}
else if (c == 'J') {
dd_consume(dd);
dd->level++;
while (dd_curr(dd) != 'E') {
if (dd_template_arg(dd) < 0)
return -1;
}
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
}
else {
if (dd_type(dd) < 0)
return -1;
}
return 0;
}
static int dd_template_args(struct demangle_data *dd)
{
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'I');
dd->templates++;
dd->level++;
while (dd_curr(dd) != 'E') {
if (dd_template_arg(dd) < 0)
return -1;
}
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
dd->templates--;
return 0;
}
static int dd_simple_id(struct demangle_data *dd)
{
if (dd_eof(dd))
return -1;
if (!isdigit(dd_curr(dd)))
DD_DEBUG(dd, "digit", -1);
if (dd_source_name(dd) < 0)
return -1;
if (dd_curr(dd) == 'I')
return dd_template_args(dd);
return 0;
}
static int dd_unresolved_type(struct demangle_data *dd)
{
char c = dd_curr(dd);
if (dd_eof(dd))
return -1;
if (c == 'T')
return dd_template_param(dd);
if (c == 'D')
return dd_decltype(dd);
if (c == 'S') {
if (dd_substitution(dd) < 0)
return -1;
if (dd_curr(dd) == 'I')
return dd_template_args(dd);
if (isdigit(dd_curr(dd)))
return dd_unqualified_name(dd);
return 0;
}
return -1;
}
static int dd_destructor_name(struct demangle_data *dd)
{
char c = dd_curr(dd);
if (dd_eof(dd))
return -1;
if (isdigit(c))
return dd_source_name(dd);
return dd_unresolved_type(dd);
}
static int dd_base_unresolved_name(struct demangle_data *dd)
{
char c0 = dd_curr(dd);
char c1 = dd_peek(dd, 1);
if (dd_eof(dd))
return -1;
if (c0 == 'o' && c1 == 'n') {
dd_consume_n(dd, 2);
if (dd_operator_name(dd) < 0)
return -1;
if (dd_curr(dd) == 'I')
return dd_template_args(dd);
return 0;
}
if (c0 == 'd' && c1 == 'n') {
dd_consume_n(dd, 2);
return dd_destructor_name(dd);
}
return dd_simple_id(dd);
}
static int dd_unresolved_name(struct demangle_data *dd)
{
char c0 = dd_curr(dd);
char c1 = dd_peek(dd, 1);
if (dd_eof(dd))
return -1;
if (c0 == 'g' && c1 == 's') {
__dd_consume_n(dd, 2, NULL);
c0 = dd_curr(dd);
c1 = dd_peek(dd, 1);
}
if (c0 == 's' && c1 == 'r') {
dd_consume_n(dd, 2);
c0 = dd_curr(dd);
if (c0 == 'T' || c0 == 'D' || c0 == 'S') {
if (dd_type(dd) < 0)
return -1;
if (dd_base_unresolved_name(dd) < 0)
return -1;
if (dd_curr(dd) == 'I')
dd_template_args(dd);
return 0;
}
if (c0 == 'N') {
__dd_consume(dd, NULL);
if (dd_type(dd) < 0)
return -1;
}
c0 = dd_curr(dd);
while (c0 != 'E') {
if (dd_simple_id(dd) < 0)
return 0;
c0 = dd_curr(dd);
}
if (c0 != 'E')
pr_dbg("no E\n");
__DD_DEBUG_CONSUME(dd, 'E');
}
return dd_base_unresolved_name(dd);
}
static int dd_expr_primary(struct demangle_data *dd)
{
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'L');
dd->type++;
dd->level++;
if (dd_curr(dd) == '_' && dd_peek(dd, 1) == 'Z') {
__dd_consume_n(dd, 2, NULL);
if (dd_encoding(dd) < 0)
return -1;
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
dd->type--;
return 0;
}
dd_type(dd);
dd_number(dd);
if (dd_curr(dd) == '_') {
__dd_consume(dd, NULL);
dd_number(dd);
}
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
dd->type--;
return 0;
}
static int dd_expr_list(struct demangle_data *dd)
{
char c = dd_curr(dd);
if (dd_eof(dd))
return -1;
dd->level++;
while (c != 'E' && c != '_') {
if (dd_expression(dd) < 0)
return -1;
c = dd_curr(dd);
}
__dd_consume_n(dd, 1, NULL);
dd->level--;
return 0;
}
static int dd_expression(struct demangle_data *dd)
{
unsigned i;
char c0 = dd_peek(dd, 0);
char c1 = dd_peek(dd, 1);
char *exp = &dd->old[dd->pos];
char *unary_ops[] = {
"ps", "ng", "ad", "de", "pp_", "mm_", "pp", "mm", "dl",
"da", "te", "sz", "az", "nx", "sp", "tw", "nt",
};
if (dd_eof(dd))
return -1;
dd_add_debug(dd);
if (c0 == 'g' && c1 == 's') {
__dd_consume_n(dd, 2, NULL);
c0 = dd_curr(dd);
c1 = dd_peek(dd, 1);
}
if (c0 == 'L')
return dd_expr_primary(dd);
for (i = 0; i < ARRAY_SIZE(unary_ops); i++) {
/* unary operator */
if (strncmp(unary_ops[i], exp, strlen(unary_ops[i])))
continue;
dd_consume_n(dd, strlen(unary_ops[i]));
return dd_expression(dd);
}
if (c0 == 'q' && c1 == 'u') {
/* ternary operator */
dd_consume_n(dd, 2);
if (dd_expression(dd) < 0)
return -1;
if (dd_expression(dd) < 0)
return -1;
return dd_expression(dd);
}
for (i = 0; i < ARRAY_SIZE(ops); i++) {
/* binary operator */
if (c0 != ops[i].op[0] || c1 != ops[i].op[1])
continue;
if (c0 == 'c' || c1 == 'v')
continue;
dd_consume_n(dd, 2);
if (dd_expression(dd) < 0)
return -1;
return dd_expression(dd);
}
if (c0 == 'c' && c1 == 'l') {
dd_consume_n(dd, 2);
return dd_expr_list(dd);
}
if (c0 == 'c' && c1 == 'v') {
dd_consume_n(dd, 2);
if (dd_type(dd) < 0)
return -1;
if (dd_curr(dd) == '_') {
dd_consume(dd);
return dd_expr_list(dd);
}
return dd_expression(dd);
}
if (c0 == 't' && c1 == 'l') {
dd_consume_n(dd, 2);
if (dd_type(dd) < 0)
return -1;
return dd_expr_list(dd);
}
if (c0 == 'i' && c1 == 'l') {
dd_consume_n(dd, 2);
return dd_expr_list(dd);
}
if (c0 == 'n' && (c1 == 'w' || c1 == 'a')) {
if (dd_expr_list(dd) < 0)
return -1;
if (dd_type(dd) < 0)
return -1;
if (dd_curr(dd) == 'E') {
dd_consume(dd);
return 0;
}
return dd_initializer(dd);
}
if (strchr("dscr", c0) && c1 == 'c') {
dd_consume_n(dd, 2);
if (dd_type(dd) < 0)
return -1;
return dd_expression(dd);
}
if ((c0 == 't' && c1 == 'i') || ((c0 == 's' || c0 == 'a') && c1 == 't')) {
dd_consume_n(dd, 2);
return dd_type(dd);
}
if (c0 == 'T' && (c1 == '_' || isdigit(c1))) {
return dd_template_param(dd);
}
if (c0 == 'f' && (c1 == 'p' || c1 == 'L')) {
return dd_function_param(dd);
}
if ((c0 == 'd' || c0 == 'p') && c1 == 't') {
dd_consume_n(dd, 2);
if (dd_expression(dd) < 0)
return -1;
return dd_unresolved_name(dd);
}
if (c0 == 'd' && c1 == 's') {
dd_consume_n(dd, 2);
if (dd_expression(dd) < 0)
return -1;
return dd_expression(dd);
}
if (c0 == 's' && c1 == 'Z') {
dd_consume_n(dd, 2);
c0 = dd_curr(dd);
if (c0 == 'T')
return dd_template_param(dd);
if (c0 == 'f')
return dd_function_param(dd);
return -1;
}
if (c0 == 's' && c1 == 'P') {
dd_consume_n(dd, 2);
dd->level++;
while (dd_curr(dd) != 'E') {
if (dd_template_arg(dd) < 0)
return -1;
}
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
return 0;
}
if (c0 == 't' && c1 == 'r') {
dd_consume_n(dd, 2);
return 0;
}
return dd_unresolved_name(dd);
}
static int dd_function_type(struct demangle_data *dd)
{
char c;
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'F');
c = dd_curr(dd);
if (c == 'Y')
__dd_consume(dd, NULL);
dd->type++;
dd->level++;
c = dd_curr(dd);
while (c != 'E') {
int old_pos = dd->pos;
if (dd_type(dd) < 0) {
dd->pos = old_pos;
break;
}
c = dd_curr(dd);
}
if (c == 'R' || c == 'O')
dd_qualifier(dd);
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
dd->type--;
return 0;
}
static int dd_array_type(struct demangle_data *dd)
{
char c;
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'A');
c = dd_curr(dd);
if (isdigit(c))
dd_number(dd);
else if (c != '_')
dd_expression(dd); /* optional */
__DD_DEBUG_CONSUME(dd, '_');
return dd_type(dd);
}
static int dd_ptr_to_member_type(struct demangle_data *dd)
{
if (dd_eof(dd))
return -1;
DD_DEBUG_CONSUME(dd, 'M');
if (dd_type(dd) < 0) /* class */
return -1;
return dd_type(dd); /* member */
}
static int dd_decltype(struct demangle_data *dd)
{
char c0 = dd_consume(dd);
char c1 = __dd_consume(dd, NULL);
if (dd_eof(dd))
return -1;
if (c0 != 'D' || (c1 != 'T' && c1 != 't'))
DD_DEBUG(dd, "DT or Dt", -2);
dd->type++;
dd->level++;
dd_expression(dd);
__DD_DEBUG_CONSUME(dd, 'E');
dd->level--;
dd->type--;
return 0;
}
static int dd_vector_type(struct demangle_data *dd)
{
char c0 = dd_consume(dd);
char c1 = __dd_consume(dd, NULL);
if (dd_eof(dd))
return -1;
if (c0 != 'D' || c1 != 'v')
DD_DEBUG(dd, "Dv", -2);
dd->type++;