/* Demangler for g++ V3 ABI.
- Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
+ Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008
+ 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 will normally define the following functions, q.v.:
char *cplus_demangle_v3(const char *mangled, int options)
char *java_demangle_v3(const char *mangled)
+ int cplus_demangle_v3_callback(const char *mangled, int options,
+ demangle_callbackref callback)
+ int java_demangle_v3_callback(const char *mangled,
+ demangle_callbackref callback)
enum gnu_v3_ctor_kinds is_gnu_v3_mangled_ctor (const char *name)
enum gnu_v3_dtor_kinds is_gnu_v3_mangled_dtor (const char *name)
defined in demangle.h:
enum demangle_component_type
struct demangle_component
+ demangle_callbackref
and these functions defined in this file:
cplus_demangle_fill_name
cplus_demangle_fill_extended_operator
cplus_demangle_fill_ctor
cplus_demangle_fill_dtor
cplus_demangle_print
+ cplus_demangle_print_callback
and other functions defined in the file cp-demint.c.
This file also defines some other functions and variables which are
Preprocessor macros you can define while compiling this file:
IN_LIBGCC2
- If defined, this file defines the following function, q.v.:
+ If defined, this file defines the following functions, q.v.:
char *__cxa_demangle (const char *mangled, char *buf, size_t *len,
int *status)
- instead of cplus_demangle_v3() and java_demangle_v3().
+ int __gcclibcxx_demangle_callback (const char *,
+ void (*)
+ (const char *, size_t, void *),
+ void *)
+ instead of cplus_demangle_v3[_callback]() and
+ java_demangle_v3[_callback]().
IN_GLIBCPP_V3
- If defined, this file defines only __cxa_demangle(), and no other
- publically visible functions or variables.
+ If defined, this file defines only __cxa_demangle() and
+ __gcclibcxx_demangle_callback(), and no other publically visible
+ functions or variables.
STANDALONE_DEMANGLER
If defined, this file defines a main() function which demangles
stdout about the mangled string. This is not generally useful.
*/
+#if defined (_AIX) && !defined (__GNUC__)
+ #pragma alloca
+#endif
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#endif
+#ifdef HAVE_ALLOCA_H
+# include <alloca.h>
+#else
+# ifndef alloca
+# ifdef __GNUC__
+# define alloca __builtin_alloca
+# else
+extern char *alloca ();
+# endif /* __GNUC__ */
+# endif /* alloca */
+#endif /* HAVE_ALLOCA_H */
+
#include "ansidecl.h"
#include "libiberty.h"
#include "demangle.h"
#define cplus_demangle_print d_print
static char *d_print (int, const struct demangle_component *, int, size_t *);
+#define cplus_demangle_print_callback d_print_callback
+static int d_print_callback (int, const struct demangle_component *,
+ demangle_callbackref, void *);
+
#define cplus_demangle_init_info d_init_info
static void d_init_info (const char *, int, size_t, struct d_info *);
V3 demangler code.
As of this writing this file has the following undefined references
- when compiled with -DIN_GLIBCPP_V3: malloc, realloc, free, memcpy,
- strcpy, strcat, strlen. */
+ when compiled with -DIN_GLIBCPP_V3: realloc, free, memcpy, strcpy,
+ strcat, strlen. */
#define IS_DIGIT(c) ((c) >= '0' && (c) <= '9')
#define IS_UPPER(c) ((c) >= 'A' && (c) <= 'Z')
struct d_print_template *templates;
};
-/* We use this structure to hold information during printing. */
+/* We use these structures to hold information during printing. */
-struct d_print_info
+struct d_growable_string
{
- /* The options passed to the demangler. */
- int options;
/* Buffer holding the result. */
char *buf;
/* Current length of data in buffer. */
size_t len;
/* Allocated size of buffer. */
size_t alc;
+ /* Set to 1 if we had a memory allocation failure. */
+ int allocation_failure;
+};
+
+enum { D_PRINT_BUFFER_LENGTH = 256 };
+struct d_print_info
+{
+ /* The options passed to the demangler. */
+ int options;
+ /* Fixed-length allocated buffer for demangled data, flushed to the
+ callback with a NUL termination once full. */
+ char buf[D_PRINT_BUFFER_LENGTH];
+ /* Current length of data in buffer. */
+ size_t len;
+ /* The last character printed, saved individually so that it survives
+ any buffer flush. */
+ char last_char;
+ /* Callback function to handle demangled buffer flush. */
+ demangle_callbackref callback;
+ /* Opaque callback argument. */
+ void *opaque;
/* The current list of templates, if any. */
struct d_print_template *templates;
/* The current list of modifiers (e.g., pointer, reference, etc.),
if any. */
struct d_print_mod *modifiers;
- /* Set to 1 if we had a memory allocation failure. */
- int allocation_failure;
+ /* Set to 1 if we saw a demangling error. */
+ int demangle_failure;
+ /* The current index into any template argument packs we are using
+ for printing. */
+ int pack_index;
};
-#define d_print_saw_error(dpi) ((dpi)->buf == NULL)
-
-#define d_append_char(dpi, c) \
- do \
- { \
- if ((dpi)->buf != NULL && (dpi)->len < (dpi)->alc) \
- (dpi)->buf[(dpi)->len++] = (c); \
- else \
- d_print_append_char ((dpi), (c)); \
- } \
- while (0)
-
-#define d_append_buffer(dpi, s, l) \
- do \
- { \
- if ((dpi)->buf != NULL && (dpi)->len + (l) <= (dpi)->alc) \
- { \
- memcpy ((dpi)->buf + (dpi)->len, (s), (l)); \
- (dpi)->len += l; \
- } \
- else \
- d_print_append_buffer ((dpi), (s), (l)); \
- } \
- while (0)
-
-#define d_append_string_constant(dpi, s) \
- d_append_buffer (dpi, (s), sizeof (s) - 1)
-
-#define d_last_char(dpi) \
- ((dpi)->buf == NULL || (dpi)->len == 0 ? '\0' : (dpi)->buf[(dpi)->len - 1])
-
#ifdef CP_DEMANGLE_DEBUG
static void d_dump (struct demangle_component *, int);
#endif
static struct demangle_component *d_substitution (struct d_info *, int);
-static void d_print_resize (struct d_print_info *, size_t);
+static void d_growable_string_init (struct d_growable_string *, size_t);
+
+static inline void
+d_growable_string_resize (struct d_growable_string *, size_t);
-static void d_print_append_char (struct d_print_info *, int);
+static inline void
+d_growable_string_append_buffer (struct d_growable_string *,
+ const char *, size_t);
+static void
+d_growable_string_callback_adapter (const char *, size_t, void *);
static void
-d_print_append_buffer (struct d_print_info *, const char *, size_t);
+d_print_init (struct d_print_info *, int, demangle_callbackref, void *);
+
+static inline void d_print_error (struct d_print_info *);
-static void d_print_error (struct d_print_info *);
+static inline int d_print_saw_error (struct d_print_info *);
+
+static inline void d_print_flush (struct d_print_info *);
+
+static inline void d_append_char (struct d_print_info *, char);
+
+static inline void d_append_buffer (struct d_print_info *,
+ const char *, size_t);
+
+static inline void d_append_string (struct d_print_info *, const char *);
+
+static inline char d_last_char (struct d_print_info *);
static void
d_print_comp (struct d_print_info *, const struct demangle_component *);
static void
d_print_cast (struct d_print_info *, const struct demangle_component *);
+static int d_demangle_callback (const char *, int,
+ demangle_callbackref, void *);
static char *d_demangle (const char *, int, size_t *);
#ifdef CP_DEMANGLE_DEBUG
int i;
if (dc == NULL)
- return;
+ {
+ if (indent == 0)
+ printf ("failed demangling\n");
+ return;
+ }
for (i = 0; i < indent; ++i)
putchar (' ');
case DEMANGLE_COMPONENT_REFERENCE:
printf ("reference\n");
break;
+ case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
+ printf ("rvalue reference\n");
+ break;
case DEMANGLE_COMPONENT_COMPLEX:
printf ("complex\n");
break;
case DEMANGLE_COMPONENT_PTRMEM_TYPE:
printf ("pointer to member type\n");
break;
+ case DEMANGLE_COMPONENT_FIXED_TYPE:
+ printf ("fixed-point type\n");
+ break;
case DEMANGLE_COMPONENT_ARGLIST:
printf ("argument list\n");
break;
case DEMANGLE_COMPONENT_LITERAL_NEG:
printf ("negative literal\n");
break;
+ case DEMANGLE_COMPONENT_JAVA_RESOURCE:
+ printf ("java resource\n");
+ break;
+ case DEMANGLE_COMPONENT_COMPOUND_NAME:
+ printf ("compound name\n");
+ break;
+ case DEMANGLE_COMPONENT_CHARACTER:
+ printf ("character '%c'\n", dc->u.s_character.character);
+ return;
+ case DEMANGLE_COMPONENT_DECLTYPE:
+ printf ("decltype\n");
+ break;
+ case DEMANGLE_COMPONENT_PACK_EXPANSION:
+ printf ("pack expansion\n");
+ break;
}
d_dump (d_left (dc), indent + 2);
{
if (p == NULL
|| name == NULL
- || (kind < gnu_v3_complete_object_ctor
- && kind > gnu_v3_complete_object_allocating_ctor))
+ || (int) kind < gnu_v3_complete_object_ctor
+ || (int) kind > gnu_v3_complete_object_allocating_ctor)
return 0;
p->type = DEMANGLE_COMPONENT_CTOR;
p->u.s_ctor.kind = kind;
{
if (p == NULL
|| name == NULL
- || (kind < gnu_v3_deleting_dtor
- && kind > gnu_v3_base_object_dtor))
+ || (int) kind < gnu_v3_deleting_dtor
+ || (int) kind > gnu_v3_base_object_dtor)
return 0;
p->type = DEMANGLE_COMPONENT_DTOR;
p->u.s_dtor.kind = kind;
case DEMANGLE_COMPONENT_TRINARY_ARG2:
case DEMANGLE_COMPONENT_LITERAL:
case DEMANGLE_COMPONENT_LITERAL_NEG:
+ case DEMANGLE_COMPONENT_COMPOUND_NAME:
if (left == NULL || right == NULL)
return NULL;
break;
case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
case DEMANGLE_COMPONENT_POINTER:
case DEMANGLE_COMPONENT_REFERENCE:
+ case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
case DEMANGLE_COMPONENT_COMPLEX:
case DEMANGLE_COMPONENT_IMAGINARY:
case DEMANGLE_COMPONENT_VENDOR_TYPE:
- case DEMANGLE_COMPONENT_ARGLIST:
- case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
case DEMANGLE_COMPONENT_CAST:
+ case DEMANGLE_COMPONENT_JAVA_RESOURCE:
+ case DEMANGLE_COMPONENT_DECLTYPE:
+ case DEMANGLE_COMPONENT_PACK_EXPANSION:
+ case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
+ case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
if (left == NULL)
return NULL;
break;
case DEMANGLE_COMPONENT_RESTRICT_THIS:
case DEMANGLE_COMPONENT_VOLATILE_THIS:
case DEMANGLE_COMPONENT_CONST_THIS:
+ case DEMANGLE_COMPONENT_ARGLIST:
+ case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
break;
/* Other types should not be seen here. */
return p;
}
+/* Add a new function parameter. */
+
+static struct demangle_component *
+d_make_function_param (struct d_info *di, long i)
+{
+ struct demangle_component *p;
+
+ p = d_make_empty (di);
+ if (p != NULL)
+ {
+ p->type = DEMANGLE_COMPONENT_FUNCTION_PARAM;
+ p->u.s_number.number = i;
+ }
+ return p;
+}
+
/* Add a new standard substitution component. */
static struct demangle_component *
struct demangle_component *
cplus_demangle_mangled_name (struct d_info *di, int top_level)
{
- if (! d_check_char (di, '_'))
+ if (! d_check_char (di, '_')
+ /* Allow missing _ if not at toplevel to work around a
+ bug in G++ abi-version=2 mangling; see the comment in
+ write_template_arg. */
+ && top_level)
return NULL;
if (! d_check_char (di, 'Z'))
return NULL;
}
peek = d_peek_char (di);
- if (peek == '\0' || peek == 'E')
+ if (dc == NULL || peek == '\0' || peek == 'E')
return dc;
return d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME, dc,
d_bare_function_type (di, has_return_type (dc)));
case 'Z':
return d_local_name (di);
+ case 'L':
+ return d_unqualified_name (di);
+
case 'S':
{
int subst;
if (IS_DIGIT (peek)
|| IS_LOWER (peek)
|| peek == 'C'
- || peek == 'D')
+ || peek == 'D'
+ || peek == 'L')
dc = d_unqualified_name (di);
else if (peek == 'S')
dc = d_substitution (di, 1);
/* <unqualified-name> ::= <operator-name>
::= <ctor-dtor-name>
::= <source-name>
+ ::= <local-source-name>
+
+ <local-source-name> ::= L <source-name> <discriminator>
*/
static struct demangle_component *
}
else if (peek == 'C' || peek == 'D')
return d_ctor_dtor_name (di);
+ else if (peek == 'L')
+ {
+ struct demangle_component * ret;
+
+ d_advance (di, 1);
+
+ ret = d_source_name (di);
+ if (ret == NULL)
+ return NULL;
+ if (! d_discriminator (di))
+ return NULL;
+ return ret;
+ }
else
return NULL;
}
{ "aa", NL ("&&"), 2 },
{ "ad", NL ("&"), 1 },
{ "an", NL ("&"), 2 },
- { "cl", NL ("()"), 0 },
+ { "cl", NL ("()"), 2 },
{ "cm", NL (","), 2 },
{ "co", NL ("~"), 1 },
{ "dV", NL ("/="), 2 },
{ "da", NL ("delete[]"), 1 },
{ "de", NL ("*"), 1 },
{ "dl", NL ("delete"), 1 },
+ { "dt", NL ("."), 2 },
{ "dv", NL ("/"), 2 },
{ "eO", NL ("^="), 2 },
{ "eo", NL ("^"), 2 },
{ "rs", NL (">>"), 2 },
{ "st", NL ("sizeof "), 1 },
{ "sz", NL ("sizeof "), 1 },
+ { "at", NL ("alignof "), 1 },
+ { "az", NL ("alignof "), 1 },
{ NULL, NULL, 0, 0 }
};
}
}
+static struct demangle_component *
+d_make_character (struct d_info *di, int c)
+{
+ struct demangle_component *p;
+ p = d_make_empty (di);
+ if (p != NULL)
+ {
+ p->type = DEMANGLE_COMPONENT_CHARACTER;
+ p->u.s_character.character = c;
+ }
+ return p;
+}
+
+static struct demangle_component *
+d_java_resource (struct d_info *di)
+{
+ struct demangle_component *p = NULL;
+ struct demangle_component *next = NULL;
+ long len, i;
+ char c;
+ const char *str;
+
+ len = d_number (di);
+ if (len <= 1)
+ return NULL;
+
+ /* Eat the leading '_'. */
+ if (d_next_char (di) != '_')
+ return NULL;
+ len--;
+
+ str = d_str (di);
+ i = 0;
+
+ while (len > 0)
+ {
+ c = str[i];
+ if (!c)
+ return NULL;
+
+ /* Each chunk is either a '$' escape... */
+ if (c == '$')
+ {
+ i++;
+ switch (str[i++])
+ {
+ case 'S':
+ c = '/';
+ break;
+ case '_':
+ c = '.';
+ break;
+ case '$':
+ c = '$';
+ break;
+ default:
+ return NULL;
+ }
+ next = d_make_character (di, c);
+ d_advance (di, i);
+ str = d_str (di);
+ len -= i;
+ i = 0;
+ if (next == NULL)
+ return NULL;
+ }
+ /* ... or a sequence of characters. */
+ else
+ {
+ while (i < len && str[i] && str[i] != '$')
+ i++;
+
+ next = d_make_name (di, str, i);
+ d_advance (di, i);
+ str = d_str (di);
+ len -= i;
+ i = 0;
+ if (next == NULL)
+ return NULL;
+ }
+
+ if (p == NULL)
+ p = next;
+ else
+ {
+ p = d_make_comp (di, DEMANGLE_COMPONENT_COMPOUND_NAME, p, next);
+ if (p == NULL)
+ return NULL;
+ }
+ }
+
+ p = d_make_comp (di, DEMANGLE_COMPONENT_JAVA_RESOURCE, p, NULL);
+
+ return p;
+}
+
/* <special-name> ::= TV <type>
::= TT <type>
::= TI <type>
::= TJ <type>
::= GR <name>
::= GA <encoding>
+ ::= Gr <resource name>
*/
static struct demangle_component *
return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS,
d_encoding (di, 0), NULL);
+ case 'r':
+ return d_java_resource (di);
+
default:
return NULL;
}
::= <CV-qualifiers> <type>
::= P <type>
::= R <type>
+ ::= O <type> (C++0x)
::= C <type>
::= G <type>
::= U <source-name> <type>
/* y */ { NL ("unsigned long long"), NL ("unsigned long long"),
D_PRINT_UNSIGNED_LONG_LONG },
/* z */ { NL ("..."), NL ("..."), D_PRINT_DEFAULT },
+ /* 26 */ { NL ("decimal32"), NL ("decimal32"), D_PRINT_DEFAULT },
+ /* 27 */ { NL ("decimal64"), NL ("decimal64"), D_PRINT_DEFAULT },
+ /* 28 */ { NL ("decimal128"), NL ("decimal128"), D_PRINT_DEFAULT },
+ /* 29 */ { NL ("half"), NL ("half"), D_PRINT_FLOAT },
+ /* 30 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT },
+ /* 31 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT },
};
CP_STATIC_IF_GLIBCPP_V3
if (pret == NULL)
return NULL;
*pret = cplus_demangle_type (di);
- if (! d_add_substitution (di, ret))
+ if (! *pret || ! d_add_substitution (di, ret))
return NULL;
return ret;
}
}
break;
+ case 'O':
+ d_advance (di, 1);
+ ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE,
+ cplus_demangle_type (di), NULL);
+ break;
+
case 'P':
d_advance (di, 1);
ret = d_make_comp (di, DEMANGLE_COMPONENT_POINTER,
case 'R':
d_advance (di, 1);
ret = d_make_comp (di, DEMANGLE_COMPONENT_REFERENCE,
- cplus_demangle_type (di), NULL);
+ cplus_demangle_type (di), NULL);
break;
case 'C':
cplus_demangle_type (di), ret);
break;
+ case 'D':
+ can_subst = 0;
+ d_advance (di, 1);
+ peek = d_next_char (di);
+ switch (peek)
+ {
+ case 'T':
+ case 't':
+ /* decltype (expression) */
+ ret = d_make_comp (di, DEMANGLE_COMPONENT_DECLTYPE,
+ d_expression (di), NULL);
+ if (ret && d_next_char (di) != 'E')
+ ret = NULL;
+ break;
+
+ case 'p':
+ /* Pack expansion. */
+ ret = d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
+ cplus_demangle_type (di), NULL);
+ break;
+
+ case 'f':
+ /* 32-bit decimal floating point */
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);
+ di->expansion += ret->u.s_builtin.type->len;
+ break;
+ case 'd':
+ /* 64-bit DFP */
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[27]);
+ di->expansion += ret->u.s_builtin.type->len;
+ break;
+ case 'e':
+ /* 128-bit DFP */
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[28]);
+ di->expansion += ret->u.s_builtin.type->len;
+ break;
+ case 'h':
+ /* 16-bit half-precision FP */
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]);
+ di->expansion += ret->u.s_builtin.type->len;
+ break;
+ case 's':
+ /* char16_t */
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
+ di->expansion += ret->u.s_builtin.type->len;
+ break;
+ case 'i':
+ /* char32_t */
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
+ di->expansion += ret->u.s_builtin.type->len;
+ break;
+
+ case 'F':
+ /* Fixed point types. DF<int bits><length><fract bits><sat> */
+ ret = d_make_empty (di);
+ ret->type = DEMANGLE_COMPONENT_FIXED_TYPE;
+ if ((ret->u.s_fixed.accum = IS_DIGIT (d_peek_char (di))))
+ /* For demangling we don't care about the bits. */
+ d_number (di);
+ ret->u.s_fixed.length = cplus_demangle_type (di);
+ d_number (di);
+ peek = d_next_char (di);
+ ret->u.s_fixed.sat = (peek == 's');
+ break;
+
+ default:
+ return NULL;
+ }
+ break;
+
default:
return NULL;
}
if (pmem == NULL)
return NULL;
*pmem = cplus_demangle_type (di);
+ if (*pmem == NULL)
+ return NULL;
if (pmem != &mem && (*pmem)->type != DEMANGLE_COMPONENT_FUNCTION_TYPE)
{
if (! d_check_char (di, 'I'))
return NULL;
+ if (d_peek_char (di) == 'E')
+ {
+ /* An argument pack can be empty. */
+ d_advance (di, 1);
+ return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE_ARGLIST, NULL, NULL);
+ }
+
al = NULL;
pal = &al;
while (1)
case 'L':
return d_expr_primary (di);
+ case 'I':
+ /* An argument pack. */
+ return d_template_args (di);
+
default:
return cplus_demangle_type (di);
}
}
+/* Subroutine of <expression> ::= cl <expression>+ E */
+
+static struct demangle_component *
+d_exprlist (struct d_info *di)
+{
+ struct demangle_component *list = NULL;
+ struct demangle_component **p = &list;
+
+ if (d_peek_char (di) == 'E')
+ {
+ d_advance (di, 1);
+ return d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, NULL, NULL);
+ }
+
+ while (1)
+ {
+ struct demangle_component *arg = d_expression (di);
+ if (arg == NULL)
+ return NULL;
+
+ *p = d_make_comp (di, DEMANGLE_COMPONENT_ARGLIST, arg, NULL);
+ if (*p == NULL)
+ return NULL;
+ p = &d_right (*p);
+
+ if (d_peek_char (di) == 'E')
+ {
+ d_advance (di, 1);
+ break;
+ }
+ }
+
+ return list;
+}
+
/* <expression> ::= <(unary) operator-name> <expression>
::= <(binary) operator-name> <expression> <expression>
::= <(trinary) operator-name> <expression> <expression> <expression>
+ ::= cl <expression>+ E
::= st <type>
::= <template-param>
::= sr <type> <unqualified-name>
d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
d_template_args (di)));
}
+ else if (peek == 's' && d_peek_next_char (di) == 'p')
+ {
+ d_advance (di, 2);
+ return d_make_comp (di, DEMANGLE_COMPONENT_PACK_EXPANSION,
+ d_expression (di), NULL);
+ }
+ else if (peek == 'f' && d_peek_next_char (di) == 'p')
+ {
+ /* Function parameter used in a late-specified return type. */
+ int index;
+ d_advance (di, 2);
+ if (d_peek_char (di) == '_')
+ index = 1;
+ else
+ {
+ index = d_number (di);
+ if (index < 0)
+ return NULL;
+ index += 2;
+ }
+
+ if (! d_check_char (di, '_'))
+ return NULL;
+
+ return d_make_function_param (di, index);
+ }
+ else if (IS_DIGIT (peek))
+ {
+ /* We can get an unqualified name as an expression in the case of
+ a dependent member access, i.e. decltype(T().i). */
+ struct demangle_component *name = d_unqualified_name (di);
+ if (name == NULL)
+ return NULL;
+ if (d_peek_char (di) == 'I')
+ return d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
+ d_template_args (di));
+ else
+ return name;
+ }
else
{
struct demangle_component *op;
switch (args)
{
case 1:
- return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
- d_expression (di));
+ {
+ struct demangle_component *operand;
+ if (op->type == DEMANGLE_COMPONENT_CAST
+ && d_check_char (di, '_'))
+ operand = d_exprlist (di);
+ else
+ operand = d_expression (di);
+ return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
+ operand);
+ }
case 2:
{
struct demangle_component *left;
+ struct demangle_component *right;
left = d_expression (di);
+ if (!strcmp (op->u.s_operator.op->code, "cl"))
+ right = d_exprlist (di);
+ else
+ right = d_expression (di);
+
return d_make_comp (di, DEMANGLE_COMPONENT_BINARY, op,
d_make_comp (di,
DEMANGLE_COMPONENT_BINARY_ARGS,
- left,
- d_expression (di)));
+ left, right));
}
case 3:
{
if (! d_check_char (di, 'L'))
return NULL;
- if (d_peek_char (di) == '_')
+ if (d_peek_char (di) == '_'
+ /* Workaround for G++ bug; see comment in write_template_arg. */
+ || d_peek_char (di) == 'Z')
ret = cplus_demangle_mangled_name (di, 0);
else
{
c = d_next_char (di);
if (c == '_' || IS_DIGIT (c) || IS_UPPER (c))
{
- int id;
+ unsigned int id;
id = 0;
if (c != '_')
{
do
{
+ unsigned int new_id;
+
if (IS_DIGIT (c))
- id = id * 36 + c - '0';
+ new_id = id * 36 + c - '0';
else if (IS_UPPER (c))
- id = id * 36 + c - 'A' + 10;
+ new_id = id * 36 + c - 'A' + 10;
else
return NULL;
- if (id < 0)
+ if (new_id < id)
return NULL;
+ id = new_id;
c = d_next_char (di);
}
while (c != '_');
++id;
}
- if (id >= di->next_sub)
+ if (id >= (unsigned int) di->next_sub)
return NULL;
++di->did_subs;
}
}
-/* Resize the print buffer. */
+/* Initialize a growable string. */
static void
-d_print_resize (struct d_print_info *dpi, size_t add)
+d_growable_string_init (struct d_growable_string *dgs, size_t estimate)
{
- size_t need;
+ dgs->buf = NULL;
+ dgs->len = 0;
+ dgs->alc = 0;
+ dgs->allocation_failure = 0;
+
+ if (estimate > 0)
+ d_growable_string_resize (dgs, estimate);
+}
+
+/* Grow a growable string to a given size. */
- if (dpi->buf == NULL)
+static inline void
+d_growable_string_resize (struct d_growable_string *dgs, size_t need)
+{
+ size_t newalc;
+ char *newbuf;
+
+ if (dgs->allocation_failure)
return;
- need = dpi->len + add;
- while (need > dpi->alc)
- {
- size_t newalc;
- char *newbuf;
- newalc = dpi->alc * 2;
- newbuf = (char *) realloc (dpi->buf, newalc);
- if (newbuf == NULL)
- {
- free (dpi->buf);
- dpi->buf = NULL;
- dpi->allocation_failure = 1;
- return;
- }
- dpi->buf = newbuf;
- dpi->alc = newalc;
+ /* Start allocation at two bytes to avoid any possibility of confusion
+ with the special value of 1 used as a return in *palc to indicate
+ allocation failures. */
+ newalc = dgs->alc > 0 ? dgs->alc : 2;
+ while (newalc < need)
+ newalc <<= 1;
+
+ newbuf = (char *) realloc (dgs->buf, newalc);
+ if (newbuf == NULL)
+ {
+ free (dgs->buf);
+ dgs->buf = NULL;
+ dgs->len = 0;
+ dgs->alc = 0;
+ dgs->allocation_failure = 1;
+ return;
}
+ dgs->buf = newbuf;
+ dgs->alc = newalc;
}
-/* Append a character to the print buffer. */
+/* Append a buffer to a growable string. */
-static void
-d_print_append_char (struct d_print_info *dpi, int c)
+static inline void
+d_growable_string_append_buffer (struct d_growable_string *dgs,
+ const char *s, size_t l)
{
- if (dpi->buf != NULL)
- {
- if (dpi->len >= dpi->alc)
- {
- d_print_resize (dpi, 1);
- if (dpi->buf == NULL)
- return;
- }
+ size_t need;
- dpi->buf[dpi->len] = c;
- ++dpi->len;
- }
+ need = dgs->len + l + 1;
+ if (need > dgs->alc)
+ d_growable_string_resize (dgs, need);
+
+ if (dgs->allocation_failure)
+ return;
+
+ memcpy (dgs->buf + dgs->len, s, l);
+ dgs->buf[dgs->len + l] = '\0';
+ dgs->len += l;
}
-/* Append a buffer to the print buffer. */
+/* Bridge growable strings to the callback mechanism. */
static void
-d_print_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
+d_growable_string_callback_adapter (const char *s, size_t l, void *opaque)
{
- if (dpi->buf != NULL)
- {
- if (dpi->len + l > dpi->alc)
- {
- d_print_resize (dpi, l);
- if (dpi->buf == NULL)
- return;
- }
+ struct d_growable_string *dgs = (struct d_growable_string*) opaque;
- memcpy (dpi->buf + dpi->len, s, l);
- dpi->len += l;
- }
+ d_growable_string_append_buffer (dgs, s, l);
}
-/* Indicate that an error occurred during printing. */
+/* Initialize a print information structure. */
static void
+d_print_init (struct d_print_info *dpi, int options,
+ demangle_callbackref callback, void *opaque)
+{
+ dpi->options = options;
+ dpi->len = 0;
+ dpi->last_char = '\0';
+ dpi->templates = NULL;
+ dpi->modifiers = NULL;
+
+ dpi->callback = callback;
+ dpi->opaque = opaque;
+
+ dpi->demangle_failure = 0;
+}
+
+/* Indicate that an error occurred during printing, and test for error. */
+
+static inline void
d_print_error (struct d_print_info *dpi)
{
- free (dpi->buf);
- dpi->buf = NULL;
+ dpi->demangle_failure = 1;
+}
+
+static inline int
+d_print_saw_error (struct d_print_info *dpi)
+{
+ return dpi->demangle_failure != 0;
+}
+
+/* Flush buffered characters to the callback. */
+
+static inline void
+d_print_flush (struct d_print_info *dpi)
+{
+ dpi->buf[dpi->len] = '\0';
+ dpi->callback (dpi->buf, dpi->len, dpi->opaque);
+ dpi->len = 0;
+}
+
+/* Append characters and buffers for printing. */
+
+static inline void
+d_append_char (struct d_print_info *dpi, char c)
+{
+ if (dpi->len == sizeof (dpi->buf) - 1)
+ d_print_flush (dpi);
+
+ dpi->buf[dpi->len++] = c;
+ dpi->last_char = c;
+}
+
+static inline void
+d_append_buffer (struct d_print_info *dpi, const char *s, size_t l)
+{
+ size_t i;
+
+ for (i = 0; i < l; i++)
+ d_append_char (dpi, s[i]);
+}
+
+static inline void
+d_append_string (struct d_print_info *dpi, const char *s)
+{
+ d_append_buffer (dpi, s, strlen (s));
+}
+
+static inline char
+d_last_char (struct d_print_info *dpi)
+{
+ return dpi->last_char;
+}
+
+/* Turn components into a human readable string. OPTIONS is the
+ options bits passed to the demangler. DC is the tree to print.
+ CALLBACK is a function to call to flush demangled string segments
+ as they fill the intermediate buffer, and OPAQUE is a generalized
+ callback argument. On success, this returns 1. On failure,
+ it returns 0, indicating a bad parse. It does not use heap
+ memory to build an output string, so cannot encounter memory
+ allocation failure. */
+
+CP_STATIC_IF_GLIBCPP_V3
+int
+cplus_demangle_print_callback (int options,
+ const struct demangle_component *dc,
+ demangle_callbackref callback, void *opaque)
+{
+ struct d_print_info dpi;
+
+ d_print_init (&dpi, options, callback, opaque);
+
+ d_print_comp (&dpi, dc);
+
+ d_print_flush (&dpi);
+
+ return ! d_print_saw_error (&dpi);
}
/* Turn components into a human readable string. OPTIONS is the
cplus_demangle_print (int options, const struct demangle_component *dc,
int estimate, size_t *palc)
{
- struct d_print_info dpi;
+ struct d_growable_string dgs;
- dpi.options = options;
+ d_growable_string_init (&dgs, estimate);
- dpi.alc = estimate + 1;
- dpi.buf = (char *) malloc (dpi.alc);
- if (dpi.buf == NULL)
+ if (! cplus_demangle_print_callback (options, dc,
+ d_growable_string_callback_adapter,
+ &dgs))
{
- *palc = 1;
+ free (dgs.buf);
+ *palc = 0;
return NULL;
}
- dpi.len = 0;
- dpi.templates = NULL;
- dpi.modifiers = NULL;
+ *palc = dgs.allocation_failure ? 1 : dgs.alc;
+ return dgs.buf;
+}
- dpi.allocation_failure = 0;
+/* Returns the I'th element of the template arglist ARGS, or NULL on
+ failure. */
- d_print_comp (&dpi, dc);
+static struct demangle_component *
+d_index_template_argument (struct demangle_component *args, int i)
+{
+ struct demangle_component *a;
- d_append_char (&dpi, '\0');
+ for (a = args;
+ a != NULL;
+ a = d_right (a))
+ {
+ if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
+ return NULL;
+ if (i <= 0)
+ break;
+ --i;
+ }
+ if (i != 0 || a == NULL)
+ return NULL;
- if (dpi.buf != NULL)
- *palc = dpi.alc;
- else
- *palc = dpi.allocation_failure;
+ return d_left (a);
+}
+
+/* Returns the template argument from the current context indicated by DC,
+ which is a DEMANGLE_COMPONENT_TEMPLATE_PARAM, or NULL. */
+
+static struct demangle_component *
+d_lookup_template_argument (struct d_print_info *dpi,
+ const struct demangle_component *dc)
+{
+ if (dpi->templates == NULL)
+ {
+ d_print_error (dpi);
+ return NULL;
+ }
+
+ return d_index_template_argument
+ (d_right (dpi->templates->template_decl),
+ dc->u.s_number.number);
+}
+
+/* Returns a template argument pack used in DC (any will do), or NULL. */
+
+static struct demangle_component *
+d_find_pack (struct d_print_info *dpi,
+ const struct demangle_component *dc)
+{
+ struct demangle_component *a;
+ if (dc == NULL)
+ return NULL;
+
+ switch (dc->type)
+ {
+ case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
+ a = d_lookup_template_argument (dpi, dc);
+ if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
+ return a;
+ return NULL;
+
+ case DEMANGLE_COMPONENT_PACK_EXPANSION:
+ return NULL;
+
+ case DEMANGLE_COMPONENT_NAME:
+ case DEMANGLE_COMPONENT_OPERATOR:
+ case DEMANGLE_COMPONENT_BUILTIN_TYPE:
+ case DEMANGLE_COMPONENT_SUB_STD:
+ case DEMANGLE_COMPONENT_CHARACTER:
+ case DEMANGLE_COMPONENT_FUNCTION_PARAM:
+ return NULL;
+
+ case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
+ return d_find_pack (dpi, dc->u.s_extended_operator.name);
+ case DEMANGLE_COMPONENT_CTOR:
+ return d_find_pack (dpi, dc->u.s_ctor.name);
+ case DEMANGLE_COMPONENT_DTOR:
+ return d_find_pack (dpi, dc->u.s_dtor.name);
+
+ default:
+ a = d_find_pack (dpi, d_left (dc));
+ if (a)
+ return a;
+ return d_find_pack (dpi, d_right (dc));
+ }
+}
+
+/* Returns the length of the template argument pack DC. */
+
+static int
+d_pack_length (const struct demangle_component *dc)
+{
+ int count = 0;
+ while (dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST
+ && d_left (dc) != NULL)
+ {
+ ++count;
+ dc = d_right (dc);
+ }
+ return count;
+}
- return dpi.buf;
+/* DC is a component of a mangled expression. Print it, wrapped in parens
+ if needed. */
+
+static void
+d_print_subexpr (struct d_print_info *dpi,
+ const struct demangle_component *dc)
+{
+ int simple = 0;
+ if (dc->type == DEMANGLE_COMPONENT_NAME
+ || dc->type == DEMANGLE_COMPONENT_FUNCTION_PARAM)
+ simple = 1;
+ if (!simple)
+ d_append_char (dpi, '(');
+ d_print_comp (dpi, dc);
+ if (!simple)
+ d_append_char (dpi, ')');
}
/* Subroutine to handle components. */
case DEMANGLE_COMPONENT_LOCAL_NAME:
d_print_comp (dpi, d_left (dc));
if ((dpi->options & DMGL_JAVA) == 0)
- d_append_string_constant (dpi, "::");
+ d_append_string (dpi, "::");
else
d_append_char (dpi, '.');
d_print_comp (dpi, d_right (dc));
the right place for the type. We also have to pass down
any CV-qualifiers, which apply to the this parameter. */
hold_modifiers = dpi->modifiers;
+ dpi->modifiers = 0;
i = 0;
typed_name = d_left (dc);
while (typed_name != NULL)
typed_name = d_left (typed_name);
}
+ if (typed_name == NULL)
+ {
+ d_print_error (dpi);
+ return;
+ }
+
/* If typed_name is a template, then it applies to the
function type as well. */
if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
case DEMANGLE_COMPONENT_TEMPLATE:
{
struct d_print_mod *hold_dpm;
+ struct demangle_component *dcl;
/* Don't push modifiers into a template definition. Doing so
could give the wrong definition for a template argument.
hold_dpm = dpi->modifiers;
dpi->modifiers = NULL;
- d_print_comp (dpi, d_left (dc));
- if (d_last_char (dpi) == '<')
- d_append_char (dpi, ' ');
- d_append_char (dpi, '<');
- d_print_comp (dpi, d_right (dc));
- /* Avoid generating two consecutive '>' characters, to avoid
- the C++ syntactic ambiguity. */
- if (d_last_char (dpi) == '>')
- d_append_char (dpi, ' ');
- d_append_char (dpi, '>');
+ dcl = d_left (dc);
+
+ if ((dpi->options & DMGL_JAVA) != 0
+ && dcl->type == DEMANGLE_COMPONENT_NAME
+ && dcl->u.s_name.len == 6
+ && strncmp (dcl->u.s_name.s, "JArray", 6) == 0)
+ {
+ /* Special-case Java arrays, so that JArray<TYPE> appears
+ instead as TYPE[]. */
+
+ d_print_comp (dpi, d_right (dc));
+ d_append_string (dpi, "[]");
+ }
+ else
+ {
+ d_print_comp (dpi, dcl);
+ if (d_last_char (dpi) == '<')
+ d_append_char (dpi, ' ');
+ d_append_char (dpi, '<');
+ d_print_comp (dpi, d_right (dc));
+ /* Avoid generating two consecutive '>' characters, to avoid
+ the C++ syntactic ambiguity. */
+ if (d_last_char (dpi) == '>')
+ d_append_char (dpi, ' ');
+ d_append_char (dpi, '>');
+ }
dpi->modifiers = hold_dpm;
case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
{
- long i;
- struct demangle_component *a;
struct d_print_template *hold_dpt;
+ struct demangle_component *a = d_lookup_template_argument (dpi, dc);
- if (dpi->templates == NULL)
- {
- d_print_error (dpi);
- return;
- }
- i = dc->u.s_number.number;
- for (a = d_right (dpi->templates->template_decl);
- a != NULL;
- a = d_right (a))
- {
- if (a->type != DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
- {
- d_print_error (dpi);
- return;
- }
- if (i <= 0)
- break;
- --i;
- }
- if (i != 0 || a == NULL)
+ if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
+ a = d_index_template_argument (a, dpi->pack_index);
+
+ if (a == NULL)
{
d_print_error (dpi);
return;
hold_dpt = dpi->templates;
dpi->templates = hold_dpt->next;
- d_print_comp (dpi, d_left (a));
+ d_print_comp (dpi, a);
dpi->templates = hold_dpt;
return;
case DEMANGLE_COMPONENT_VTABLE:
- d_append_string_constant (dpi, "vtable for ");
+ d_append_string (dpi, "vtable for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_VTT:
- d_append_string_constant (dpi, "VTT for ");
+ d_append_string (dpi, "VTT for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_CONSTRUCTION_VTABLE:
- d_append_string_constant (dpi, "construction vtable for ");
+ d_append_string (dpi, "construction vtable for ");
d_print_comp (dpi, d_left (dc));
- d_append_string_constant (dpi, "-in-");
+ d_append_string (dpi, "-in-");
d_print_comp (dpi, d_right (dc));
return;
case DEMANGLE_COMPONENT_TYPEINFO:
- d_append_string_constant (dpi, "typeinfo for ");
+ d_append_string (dpi, "typeinfo for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_TYPEINFO_NAME:
- d_append_string_constant (dpi, "typeinfo name for ");
+ d_append_string (dpi, "typeinfo name for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_TYPEINFO_FN:
- d_append_string_constant (dpi, "typeinfo fn for ");
+ d_append_string (dpi, "typeinfo fn for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_THUNK:
- d_append_string_constant (dpi, "non-virtual thunk to ");
+ d_append_string (dpi, "non-virtual thunk to ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_VIRTUAL_THUNK:
- d_append_string_constant (dpi, "virtual thunk to ");
+ d_append_string (dpi, "virtual thunk to ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_COVARIANT_THUNK:
- d_append_string_constant (dpi, "covariant return thunk to ");
+ d_append_string (dpi, "covariant return thunk to ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_JAVA_CLASS:
- d_append_string_constant (dpi, "java Class for ");
+ d_append_string (dpi, "java Class for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_GUARD:
- d_append_string_constant (dpi, "guard variable for ");
+ d_append_string (dpi, "guard variable for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_REFTEMP:
- d_append_string_constant (dpi, "reference temporary for ");
+ d_append_string (dpi, "reference temporary for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_HIDDEN_ALIAS:
- d_append_string_constant (dpi, "hidden alias for ");
+ d_append_string (dpi, "hidden alias for ");
d_print_comp (dpi, d_left (dc));
return;
case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
case DEMANGLE_COMPONENT_POINTER:
case DEMANGLE_COMPONENT_REFERENCE:
+ case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
case DEMANGLE_COMPONENT_COMPLEX:
case DEMANGLE_COMPONENT_IMAGINARY:
{
{
d_append_char (dpi, ' ');
d_print_comp (dpi, d_left (dc));
- d_append_string_constant (dpi, "::*");
+ d_append_string (dpi, "::*");
}
dpi->modifiers = dpm.next;
return;
}
+ case DEMANGLE_COMPONENT_FIXED_TYPE:
+ if (dc->u.s_fixed.sat)
+ d_append_string (dpi, "_Sat ");
+ /* Don't print "int _Accum". */
+ if (dc->u.s_fixed.length->u.s_builtin.type
+ != &cplus_demangle_builtin_types['i'-'a'])
+ {
+ d_print_comp (dpi, dc->u.s_fixed.length);
+ d_append_char (dpi, ' ');
+ }
+ if (dc->u.s_fixed.accum)
+ d_append_string (dpi, "_Accum");
+ else
+ d_append_string (dpi, "_Fract");
+ return;
+
case DEMANGLE_COMPONENT_ARGLIST:
case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
- d_print_comp (dpi, d_left (dc));
+ if (d_left (dc) != NULL)
+ d_print_comp (dpi, d_left (dc));
if (d_right (dc) != NULL)
{
- d_append_string_constant (dpi, ", ");
+ size_t len;
+ d_append_string (dpi, ", ");
+ len = dpi->len;
d_print_comp (dpi, d_right (dc));
+ /* If that didn't print anything (which can happen with empty
+ template argument packs), remove the comma and space. */
+ if (dpi->len == len)
+ dpi->len -= 2;
}
return;
{
char c;
- d_append_string_constant (dpi, "operator");
+ d_append_string (dpi, "operator");
c = dc->u.s_operator.op->name[0];
if (IS_LOWER (c))
d_append_char (dpi, ' ');
}
case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
- d_append_string_constant (dpi, "operator ");
+ d_append_string (dpi, "operator ");
d_print_comp (dpi, dc->u.s_extended_operator.name);
return;
case DEMANGLE_COMPONENT_CAST:
- d_append_string_constant (dpi, "operator ");
+ d_append_string (dpi, "operator ");
d_print_cast (dpi, dc);
return;
d_print_cast (dpi, d_left (dc));
d_append_char (dpi, ')');
}
- d_append_char (dpi, '(');
- d_print_comp (dpi, d_right (dc));
- d_append_char (dpi, ')');
+ d_print_subexpr (dpi, d_right (dc));
return;
case DEMANGLE_COMPONENT_BINARY:
&& d_left (dc)->u.s_operator.op->name[0] == '>')
d_append_char (dpi, '(');
- d_append_char (dpi, '(');
- d_print_comp (dpi, d_left (d_right (dc)));
- d_append_string_constant (dpi, ") ");
- d_print_expr_op (dpi, d_left (dc));
- d_append_string_constant (dpi, " (");
- d_print_comp (dpi, d_right (d_right (dc)));
- d_append_char (dpi, ')');
+ d_print_subexpr (dpi, d_left (d_right (dc)));
+ if (strcmp (d_left (dc)->u.s_operator.op->code, "cl") != 0)
+ d_print_expr_op (dpi, d_left (dc));
+ d_print_subexpr (dpi, d_right (d_right (dc)));
if (d_left (dc)->type == DEMANGLE_COMPONENT_OPERATOR
&& d_left (dc)->u.s_operator.op->len == 1
d_print_error (dpi);
return;
}
- d_append_char (dpi, '(');
- d_print_comp (dpi, d_left (d_right (dc)));
- d_append_string_constant (dpi, ") ");
+ d_print_subexpr (dpi, d_left (d_right (dc)));
d_print_expr_op (dpi, d_left (dc));
- d_append_string_constant (dpi, " (");
- d_print_comp (dpi, d_left (d_right (d_right (dc))));
- d_append_string_constant (dpi, ") : (");
- d_print_comp (dpi, d_right (d_right (d_right (dc))));
- d_append_char (dpi, ')');
+ d_print_subexpr (dpi, d_left (d_right (d_right (dc))));
+ d_append_string (dpi, " : ");
+ d_print_subexpr (dpi, d_right (d_right (d_right (dc))));
return;
case DEMANGLE_COMPONENT_TRINARY_ARG1:
d_append_char (dpi, 'l');
break;
case D_PRINT_UNSIGNED_LONG:
- d_append_string_constant (dpi, "ul");
+ d_append_string (dpi, "ul");
break;
case D_PRINT_LONG_LONG:
- d_append_string_constant (dpi, "ll");
+ d_append_string (dpi, "ll");
break;
case D_PRINT_UNSIGNED_LONG_LONG:
- d_append_string_constant (dpi, "ull");
+ d_append_string (dpi, "ull");
break;
}
return;
switch (d_right (dc)->u.s_name.s[0])
{
case '0':
- d_append_string_constant (dpi, "false");
+ d_append_string (dpi, "false");
return;
case '1':
- d_append_string_constant (dpi, "true");
+ d_append_string (dpi, "true");
return;
default:
break;
}
return;
+ case DEMANGLE_COMPONENT_JAVA_RESOURCE:
+ d_append_string (dpi, "java resource ");
+ d_print_comp (dpi, d_left (dc));
+ return;
+
+ case DEMANGLE_COMPONENT_COMPOUND_NAME:
+ d_print_comp (dpi, d_left (dc));
+ d_print_comp (dpi, d_right (dc));
+ return;
+
+ case DEMANGLE_COMPONENT_CHARACTER:
+ d_append_char (dpi, dc->u.s_character.character);
+ return;
+
+ case DEMANGLE_COMPONENT_DECLTYPE:
+ d_append_string (dpi, "decltype (");
+ d_print_comp (dpi, d_left (dc));
+ d_append_char (dpi, ')');
+ return;
+
+ case DEMANGLE_COMPONENT_PACK_EXPANSION:
+ {
+ int len;
+ int i;
+ struct demangle_component *a = d_find_pack (dpi, d_left (dc));
+ if (a == NULL)
+ {
+ /* d_find_pack won't find anything if the only packs involved
+ in this expansion are function parameter packs; in that
+ case, just print the pattern and "...". */
+ d_print_subexpr (dpi, d_left (dc));
+ d_append_string (dpi, "...");
+ return;
+ }
+
+ len = d_pack_length (a);
+ dc = d_left (dc);
+ for (i = 0; i < len; ++i)
+ {
+ dpi->pack_index = i;
+ d_print_comp (dpi, dc);
+ if (i < len-1)
+ d_append_string (dpi, ", ");
+ }
+ }
+ return;
+
+ case DEMANGLE_COMPONENT_FUNCTION_PARAM:
+ {
+ char buf[25];
+ d_append_string (dpi, "parm#");
+ sprintf(buf,"%ld", dc->u.s_number.number);
+ d_append_string (dpi, buf);
+ return;
+ }
+
+ case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
+ d_append_string (dpi, "global constructors keyed to ");
+ d_print_comp (dpi, dc->u.s_binary.left);
+ return;
+
+ case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
+ d_append_string (dpi, "global destructors keyed to ");
+ d_print_comp (dpi, dc->u.s_binary.left);
+ return;
+
default:
d_print_error (dpi);
return;
dpi->modifiers = hold_modifiers;
if ((dpi->options & DMGL_JAVA) == 0)
- d_append_string_constant (dpi, "::");
+ d_append_string (dpi, "::");
else
d_append_char (dpi, '.');
{
case DEMANGLE_COMPONENT_RESTRICT:
case DEMANGLE_COMPONENT_RESTRICT_THIS:
- d_append_string_constant (dpi, " restrict");
+ d_append_string (dpi, " restrict");
return;
case DEMANGLE_COMPONENT_VOLATILE:
case DEMANGLE_COMPONENT_VOLATILE_THIS:
- d_append_string_constant (dpi, " volatile");
+ d_append_string (dpi, " volatile");
return;
case DEMANGLE_COMPONENT_CONST:
case DEMANGLE_COMPONENT_CONST_THIS:
- d_append_string_constant (dpi, " const");
+ d_append_string (dpi, " const");
return;
case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
d_append_char (dpi, ' ');
case DEMANGLE_COMPONENT_REFERENCE:
d_append_char (dpi, '&');
return;
+ case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
+ d_append_string (dpi, "&&");
+ return;
case DEMANGLE_COMPONENT_COMPLEX:
- d_append_string_constant (dpi, "complex ");
+ d_append_string (dpi, "complex ");
return;
case DEMANGLE_COMPONENT_IMAGINARY:
- d_append_string_constant (dpi, "imaginary ");
+ d_append_string (dpi, "imaginary ");
return;
case DEMANGLE_COMPONENT_PTRMEM_TYPE:
if (d_last_char (dpi) != '(')
d_append_char (dpi, ' ');
d_print_comp (dpi, d_left (mod));
- d_append_string_constant (dpi, "::*");
+ d_append_string (dpi, "::*");
return;
case DEMANGLE_COMPONENT_TYPED_NAME:
d_print_comp (dpi, d_left (mod));
{
case DEMANGLE_COMPONENT_POINTER:
case DEMANGLE_COMPONENT_REFERENCE:
+ case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
need_paren = 1;
break;
case DEMANGLE_COMPONENT_RESTRICT:
}
if (need_paren)
- d_append_string_constant (dpi, " (");
+ d_append_string (dpi, " (");
d_print_mod_list (dpi, mods, 0);
di->expansion = 0;
}
-/* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled
- name, return a buffer allocated with malloc holding the demangled
- name. OPTIONS is the usual libiberty demangler options. On
- success, this sets *PALC to the allocated size of the returned
- buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for
- a memory allocation failure. On failure, this returns NULL. */
+/* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI
+ mangled name, return strings in repeated callback giving the demangled
+ name. OPTIONS is the usual libiberty demangler options. On success,
+ this returns 1. On failure, returns 0. */
-static char *
-d_demangle (const char* mangled, int options, size_t *palc)
+static int
+d_demangle_callback (const char *mangled, int options,
+ demangle_callbackref callback, void *opaque)
{
- size_t len;
- int type;
+ enum
+ {
+ DCT_TYPE,
+ DCT_MANGLED,
+ DCT_GLOBAL_CTORS,
+ DCT_GLOBAL_DTORS
+ }
+ type;
struct d_info di;
struct demangle_component *dc;
- int estimate;
- char *ret;
-
- *palc = 0;
-
- len = strlen (mangled);
+ int status;
if (mangled[0] == '_' && mangled[1] == 'Z')
- type = 0;
+ type = DCT_MANGLED;
else if (strncmp (mangled, "_GLOBAL_", 8) == 0
&& (mangled[8] == '.' || mangled[8] == '_' || mangled[8] == '$')
&& (mangled[9] == 'D' || mangled[9] == 'I')
&& mangled[10] == '_')
- {
- char *r;
-
- r = (char *) malloc (40 + len - 11);
- if (r == NULL)
- *palc = 1;
- else
- {
- if (mangled[9] == 'I')
- strcpy (r, "global constructors keyed to ");
- else
- strcpy (r, "global destructors keyed to ");
- strcat (r, mangled + 11);
- }
- return r;
- }
+ type = mangled[9] == 'I' ? DCT_GLOBAL_CTORS : DCT_GLOBAL_DTORS;
else
{
if ((options & DMGL_TYPES) == 0)
- return NULL;
- type = 1;
+ return 0;
+ type = DCT_TYPE;
}
- cplus_demangle_init_info (mangled, options, len, &di);
+ cplus_demangle_init_info (mangled, options, strlen (mangled), &di);
{
#ifdef CP_DYNAMIC_ARRAYS
__extension__ struct demangle_component comps[di.num_comps];
__extension__ struct demangle_component *subs[di.num_subs];
- di.comps = &comps[0];
- di.subs = &subs[0];
+ di.comps = comps;
+ di.subs = subs;
#else
- 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)
- {
- if (di.comps != NULL)
- free (di.comps);
- if (di.subs != NULL)
- free (di.subs);
- *palc = 1;
- return NULL;
- }
+ di.comps = alloca (di.num_comps * sizeof (*di.comps));
+ di.subs = alloca (di.num_subs * sizeof (*di.subs));
#endif
- if (! type)
- dc = cplus_demangle_mangled_name (&di, 1);
- else
- dc = cplus_demangle_type (&di);
+ switch (type)
+ {
+ case DCT_TYPE:
+ dc = cplus_demangle_type (&di);
+ break;
+ case DCT_MANGLED:
+ dc = cplus_demangle_mangled_name (&di, 1);
+ break;
+ case DCT_GLOBAL_CTORS:
+ case DCT_GLOBAL_DTORS:
+ d_advance (&di, 11);
+ dc = d_make_comp (&di,
+ (type == DCT_GLOBAL_CTORS
+ ? DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS
+ : DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS),
+ d_make_name (&di, d_str (&di), strlen (d_str (&di))),
+ NULL);
+ d_advance (&di, strlen (d_str (&di)));
+ break;
+ }
/* If DMGL_PARAMS is set, then if we didn't consume the entire
mangled string, then we didn't successfully demangle it. If
dc = NULL;
#ifdef CP_DEMANGLE_DEBUG
- if (dc == NULL)
- printf ("failed demangling\n");
- else
- d_dump (dc, 0);
+ d_dump (dc, 0);
#endif
- /* We try to guess the length of the demangled string, to minimize
- calls to realloc during demangling. */
- estimate = len + di.expansion + 10 * di.did_subs;
- estimate += estimate / 8;
+ status = (dc != NULL)
+ ? cplus_demangle_print_callback (options, dc, callback, opaque)
+ : 0;
+ }
- ret = NULL;
- if (dc != NULL)
- ret = cplus_demangle_print (options, dc, estimate, palc);
+ return status;
+}
-#ifndef CP_DYNAMIC_ARRAYS
- free (di.comps);
- free (di.subs);
-#endif
+/* Entry point for the demangler. If MANGLED is a g++ v3 ABI mangled
+ name, return a buffer allocated with malloc holding the demangled
+ name. OPTIONS is the usual libiberty demangler options. On
+ success, this sets *PALC to the allocated size of the returned
+ buffer. On failure, this sets *PALC to 0 for a bad name, or 1 for
+ a memory allocation failure, and returns NULL. */
-#ifdef CP_DEMANGLE_DEBUG
- if (ret != NULL)
- {
- int rlen;
-
- rlen = strlen (ret);
- if (rlen > 2 * estimate)
- printf ("*** Length %d much greater than estimate %d\n",
- rlen, estimate);
- else if (rlen > estimate)
- printf ("*** Length %d greater than estimate %d\n",
- rlen, estimate);
- else if (rlen < estimate / 2)
- printf ("*** Length %d much less than estimate %d\n",
- rlen, estimate);
- }
-#endif
- }
+static char *
+d_demangle (const char *mangled, int options, size_t *palc)
+{
+ struct d_growable_string dgs;
+ int status;
- return ret;
+ d_growable_string_init (&dgs, 0);
+
+ status = d_demangle_callback (mangled, options,
+ d_growable_string_callback_adapter, &dgs);
+ if (status == 0)
+ {
+ free (dgs.buf);
+ *palc = 0;
+ return NULL;
+ }
+
+ *palc = dgs.allocation_failure ? 1 : 0;
+ return dgs.buf;
}
#if defined(IN_LIBGCC2) || defined(IN_GLIBCPP_V3)
OUTPUT_BUFFER may instead be NULL; in that case, the demangled name
is placed in a region of memory allocated with malloc.
- If LENGTH is non-NULL, the length of the buffer conaining the
+ If LENGTH is non-NULL, the length of the buffer containing the
demangled name, is placed in *LENGTH.
The return value is a pointer to the start of the NUL-terminated
return demangled;
}
+extern int __gcclibcxx_demangle_callback (const char *,
+ void (*)
+ (const char *, size_t, void *),
+ void *);
+
+/* Alternative, allocationless entry point in the C++ runtime library
+ for performing demangling. MANGLED_NAME is a NUL-terminated character
+ string containing the name to be demangled.
+
+ CALLBACK is a callback function, called with demangled string
+ segments as demangling progresses; it is called at least once,
+ but may be called more than once. OPAQUE is a generalized pointer
+ used as a callback argument.
+
+ The return code is one of the following values, equivalent to
+ the STATUS values of __cxa_demangle() (excluding -1, since this
+ function performs no memory allocations):
+ 0: The demangling operation succeeded.
+ -2: MANGLED_NAME is not a valid name under the C++ ABI mangling rules.
+ -3: One of the arguments is invalid.
+
+ The demangling is performed using the C++ ABI mangling rules, with
+ GNU extensions. */
+
+int
+__gcclibcxx_demangle_callback (const char *mangled_name,
+ void (*callback) (const char *, size_t, void *),
+ void *opaque)
+{
+ int status;
+
+ if (mangled_name == NULL || callback == NULL)
+ return -3;
+
+ status = d_demangle_callback (mangled_name, DMGL_PARAMS | DMGL_TYPES,
+ callback, opaque);
+ if (status == 0)
+ return -2;
+
+ return 0;
+}
+
#else /* ! (IN_LIBGCC2 || IN_GLIBCPP_V3) */
/* Entry point for libiberty demangler. If MANGLED is a g++ v3 ABI
demangled name. Otherwise, return NULL. */
char *
-cplus_demangle_v3 (const char* mangled, int options)
+cplus_demangle_v3 (const char *mangled, int options)
{
size_t alc;
return d_demangle (mangled, options, &alc);
}
+int
+cplus_demangle_v3_callback (const char *mangled, int options,
+ demangle_callbackref callback, void *opaque)
+{
+ return d_demangle_callback (mangled, options, callback, opaque);
+}
+
/* Demangle a Java symbol. Java uses a subset of the V3 ABI C++ mangling
conventions, but the output formatting is a little different.
- This instructs the C++ demangler not to emit pointer characters ("*"), and
- to use Java's namespace separator symbol ("." instead of "::"). It then
- does an additional pass over the demangled output to replace instances
- of JArray<TYPE> with TYPE[]. */
+ This instructs the C++ demangler not to emit pointer characters ("*"), to
+ use Java's namespace separator symbol ("." instead of "::"), and to output
+ JArray<TYPE> as TYPE[]. */
char *
-java_demangle_v3 (const char* mangled)
+java_demangle_v3 (const char *mangled)
{
size_t alc;
- char *demangled;
- int nesting;
- char *from;
- char *to;
-
- demangled = d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX,
- &alc);
-
- if (demangled == NULL)
- return NULL;
- nesting = 0;
- from = demangled;
- to = from;
- while (*from != '\0')
- {
- if (strncmp (from, "JArray<", 7) == 0)
- {
- from += 7;
- ++nesting;
- }
- else if (nesting > 0 && *from == '>')
- {
- while (to > demangled && to[-1] == ' ')
- --to;
- *to++ = '[';
- *to++ = ']';
- --nesting;
- ++from;
- }
- else
- *to++ = *from++;
- }
-
- *to = '\0';
+ return d_demangle (mangled, DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX, &alc);
+}
- return demangled;
+int
+java_demangle_v3_callback (const char *mangled,
+ demangle_callbackref callback, void *opaque)
+{
+ return d_demangle_callback (mangled,
+ DMGL_JAVA | DMGL_PARAMS | DMGL_RET_POSTFIX,
+ callback, opaque);
}
#endif /* IN_LIBGCC2 || IN_GLIBCPP_V3 */
__extension__ struct demangle_component comps[di.num_comps];
__extension__ struct demangle_component *subs[di.num_subs];
- di.comps = &comps[0];
- di.subs = &subs[0];
+ di.comps = comps;
+ di.subs = subs;
#else
- 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)
- {
- if (di.comps != NULL)
- free (di.comps);
- if (di.subs != NULL)
- free (di.subs);
- return 0;
- }
+ di.comps = alloca (di.num_comps * sizeof (*di.comps));
+ di.subs = alloca (di.num_subs * sizeof (*di.subs));
#endif
dc = cplus_demangle_mangled_name (&di, 1);
break;
}
}
-
-#ifndef CP_DYNAMIC_ARRAYS
- free (di.subs);
- free (di.comps);
-#endif
}
return ret;
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