/* Demangler for g++ V3 ABI.
- Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2014
- Free Software Foundation, Inc.
+ Copyright (C) 2003-2022 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 code implements a demangler for the g++ V3 ABI. The ABI is
described on this web page:
- http://www.codesourcery.com/cxx-abi/abi.html#mangling
+ https://itanium-cxx-abi.github.io/cxx-abi/abi.html#mangling
This code was written while looking at the demangler written by
Alex Samuel <samuel@codesourcery.com>.
CP_DEMANGLE_DEBUG
If defined, turns on debugging mode, which prints information on
stdout about the mangled string. This is not generally useful.
-*/
+
+ CHECK_DEMANGLER
+ If defined, additional sanity checks will be performed. It will
+ cause some slowdown, but will allow to catch out-of-bound access
+ errors earlier. This macro is intended for testing and debugging. */
#if defined (_AIX) && !defined (__GNUC__)
#pragma alloca
# endif /* alloca */
#endif /* HAVE_ALLOCA_H */
+#ifdef HAVE_LIMITS_H
+#include <limits.h>
+#endif
+#ifndef INT_MAX
+# define INT_MAX (int)(((unsigned int) ~0) >> 1) /* 0x7FFFFFFF */
+#endif
+
#include "ansidecl.h"
#include "libiberty.h"
#include "demangle.h"
static struct demangle_component *d_type (struct d_info *);
#define cplus_demangle_print d_print
-static char *d_print (int, const struct demangle_component *, int, size_t *);
+static char *d_print (int, struct demangle_component *, int, size_t *);
#define cplus_demangle_print_callback d_print_callback
-static int d_print_callback (int, const struct demangle_component *,
+static int d_print_callback (int, struct demangle_component *,
demangle_callbackref, void *);
#define cplus_demangle_init_info d_init_info
#else
#ifdef __STDC__
#ifdef __STDC_VERSION__
-#if __STDC_VERSION__ >= 199901L
+#if __STDC_VERSION__ >= 199901L && !__STDC_NO_VLA__
#define CP_DYNAMIC_ARRAYS
-#endif /* __STDC__VERSION >= 199901L */
+#endif /* __STDC_VERSION__ >= 199901L && !__STDC_NO_VLA__ */
#endif /* defined (__STDC_VERSION__) */
#endif /* defined (__STDC__) */
#endif /* ! defined (__GNUC__) */
in which they appeared in the mangled string. */
struct d_print_mod *next;
/* The modifier. */
- const struct demangle_component *mod;
+ struct demangle_component *mod;
/* Whether this modifier was printed. */
int printed;
/* The list of templates which applies to this modifier. */
const char *n;
int next_comp;
int next_sub;
- int did_subs;
int expansion;
};
+/* Maximum number of times d_print_comp may be called recursively. */
+#define MAX_RECURSION_COUNT 1024
+
enum { D_PRINT_BUFFER_LENGTH = 256 };
struct d_print_info
{
struct d_print_mod *modifiers;
/* Set to 1 if we saw a demangling error. */
int demangle_failure;
+ /* Number of times d_print_comp was recursively called. Should not
+ be bigger than MAX_RECURSION_COUNT. */
+ int recursion;
+ /* Non-zero if we're printing a lambda argument. A template
+ parameter reference actually means 'auto'. */
+ int is_lambda_arg;
/* The current index into any template argument packs we are using
- for printing. */
+ for printing, or -1 to print the whole pack. */
int pack_index;
/* Number of d_print_flush calls so far. */
unsigned long int flush_count;
struct demangle_component *);
static struct demangle_component *
-d_make_template_param (struct d_info *, long);
+d_make_template_param (struct d_info *, int);
static struct demangle_component *
d_make_sub (struct d_info *, const char *, int);
static struct demangle_component *d_encoding (struct d_info *, int);
-static struct demangle_component *d_name (struct d_info *);
+static struct demangle_component *d_name (struct d_info *, int substable);
static struct demangle_component *d_nested_name (struct d_info *);
-static struct demangle_component *d_prefix (struct d_info *);
+static int d_maybe_module_name (struct d_info *, struct demangle_component **);
-static struct demangle_component *d_unqualified_name (struct d_info *);
+static struct demangle_component *d_prefix (struct d_info *, int);
+
+static struct demangle_component *d_unqualified_name (struct d_info *,
+ struct demangle_component *scope, struct demangle_component *module);
static struct demangle_component *d_source_name (struct d_info *);
-static long d_number (struct d_info *);
+static int d_number (struct d_info *);
static struct demangle_component *d_identifier (struct d_info *, int);
static struct demangle_component *d_special_name (struct d_info *);
+static struct demangle_component *d_parmlist (struct d_info *);
+
static int d_call_offset (struct d_info *, int);
static struct demangle_component *d_ctor_dtor_name (struct d_info *);
d_bare_function_type (struct d_info *, int);
static struct demangle_component *
-d_class_enum_type (struct d_info *);
+d_class_enum_type (struct d_info *, int);
static struct demangle_component *d_array_type (struct d_info *);
d_template_param (struct d_info *);
static struct demangle_component *d_template_args (struct d_info *);
+static struct demangle_component *d_template_args_1 (struct d_info *);
static struct demangle_component *
d_template_arg (struct d_info *);
static void
d_print_init (struct d_print_info *, demangle_callbackref, void *,
- const struct demangle_component *);
+ struct demangle_component *);
static inline void d_print_error (struct d_print_info *);
static inline char d_last_char (struct d_print_info *);
static void
-d_print_comp (struct d_print_info *, int, const struct demangle_component *);
+d_print_comp (struct d_print_info *, int, struct demangle_component *);
static void
d_print_java_identifier (struct d_print_info *, const char *, int);
d_print_mod_list (struct d_print_info *, int, struct d_print_mod *, int);
static void
-d_print_mod (struct d_print_info *, int, const struct demangle_component *);
+d_print_mod (struct d_print_info *, int, struct demangle_component *);
static void
d_print_function_type (struct d_print_info *, int,
- const struct demangle_component *,
+ struct demangle_component *,
struct d_print_mod *);
static void
d_print_array_type (struct d_print_info *, int,
- const struct demangle_component *,
+ struct demangle_component *,
struct d_print_mod *);
static void
-d_print_expr_op (struct d_print_info *, int, const struct demangle_component *);
+d_print_expr_op (struct d_print_info *, int, struct demangle_component *);
-static void
-d_print_cast (struct d_print_info *, int, const struct demangle_component *);
+static void d_print_cast (struct d_print_info *, int,
+ struct demangle_component *);
+static void d_print_conversion (struct d_print_info *, int,
+ struct demangle_component *);
static int d_demangle_callback (const char *, int,
demangle_callbackref, void *);
static char *d_demangle (const char *, int, size_t *);
+#define FNQUAL_COMPONENT_CASE \
+ case DEMANGLE_COMPONENT_RESTRICT_THIS: \
+ case DEMANGLE_COMPONENT_VOLATILE_THIS: \
+ case DEMANGLE_COMPONENT_CONST_THIS: \
+ case DEMANGLE_COMPONENT_REFERENCE_THIS: \
+ case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS: \
+ case DEMANGLE_COMPONENT_TRANSACTION_SAFE: \
+ case DEMANGLE_COMPONENT_NOEXCEPT: \
+ case DEMANGLE_COMPONENT_THROW_SPEC
+
+/* True iff TYPE is a demangling component representing a
+ function-type-qualifier. */
+
+static int
+is_fnqual_component_type (enum demangle_component_type type)
+{
+ switch (type)
+ {
+ FNQUAL_COMPONENT_CASE:
+ return 1;
+ default:
+ break;
+ }
+ return 0;
+}
+
+
#ifdef CP_DEMANGLE_DEBUG
static void
case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
printf ("template parameter %ld\n", dc->u.s_number.number);
return;
+ case DEMANGLE_COMPONENT_TPARM_OBJ:
+ printf ("template parameter object\n");
+ break;
case DEMANGLE_COMPONENT_FUNCTION_PARAM:
printf ("function parameter %ld\n", dc->u.s_number.number);
return;
case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
printf ("rvalue reference this\n");
break;
+ case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
+ printf ("transaction_safe this\n");
+ break;
case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
printf ("vendor type qualifier\n");
break;
case DEMANGLE_COMPONENT_FIXED_TYPE:
printf ("fixed-point type, accum? %d, sat? %d\n",
dc->u.s_fixed.accum, dc->u.s_fixed.sat);
- d_dump (dc->u.s_fixed.length, indent + 2)
+ d_dump (dc->u.s_fixed.length, indent + 2);
break;
case DEMANGLE_COMPONENT_ARGLIST:
printf ("argument list\n");
case DEMANGLE_COMPONENT_CAST:
printf ("cast\n");
break;
+ case DEMANGLE_COMPONENT_CONVERSION:
+ printf ("conversion operator\n");
+ break;
case DEMANGLE_COMPONENT_NULLARY:
printf ("nullary operator\n");
break;
case DEMANGLE_COMPONENT_LITERAL_NEG:
printf ("negative literal\n");
break;
+ case DEMANGLE_COMPONENT_VENDOR_EXPR:
+ printf ("vendor expression\n");
+ break;
case DEMANGLE_COMPONENT_JAVA_RESOURCE:
printf ("java resource\n");
break;
int
cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
{
- if (p == NULL || s == NULL || len == 0)
+ if (p == NULL || s == NULL || len <= 0)
return 0;
+ p->d_printing = 0;
+ p->d_counting = 0;
p->type = DEMANGLE_COMPONENT_NAME;
p->u.s_name.s = s;
p->u.s_name.len = len;
{
if (p == NULL || args < 0 || name == NULL)
return 0;
+ p->d_printing = 0;
+ p->d_counting = 0;
p->type = DEMANGLE_COMPONENT_EXTENDED_OPERATOR;
p->u.s_extended_operator.args = args;
p->u.s_extended_operator.name = name;
|| (int) kind < gnu_v3_complete_object_ctor
|| (int) kind > gnu_v3_object_ctor_group)
return 0;
+ p->d_printing = 0;
+ p->d_counting = 0;
p->type = DEMANGLE_COMPONENT_CTOR;
p->u.s_ctor.kind = kind;
p->u.s_ctor.name = name;
|| (int) kind < gnu_v3_deleting_dtor
|| (int) kind > gnu_v3_object_dtor_group)
return 0;
+ p->d_printing = 0;
+ p->d_counting = 0;
p->type = DEMANGLE_COMPONENT_DTOR;
p->u.s_dtor.kind = kind;
p->u.s_dtor.name = name;
if (di->next_comp >= di->num_comps)
return NULL;
p = &di->comps[di->next_comp];
+ p->d_printing = 0;
+ p->d_counting = 0;
++di->next_comp;
return p;
}
case DEMANGLE_COMPONENT_TRINARY_ARG1:
case DEMANGLE_COMPONENT_LITERAL:
case DEMANGLE_COMPONENT_LITERAL_NEG:
+ case DEMANGLE_COMPONENT_VENDOR_EXPR:
case DEMANGLE_COMPONENT_COMPOUND_NAME:
case DEMANGLE_COMPONENT_VECTOR_TYPE:
case DEMANGLE_COMPONENT_CLONE:
+ case DEMANGLE_COMPONENT_MODULE_ENTITY:
if (left == NULL || right == NULL)
return NULL;
break;
case DEMANGLE_COMPONENT_IMAGINARY:
case DEMANGLE_COMPONENT_VENDOR_TYPE:
case DEMANGLE_COMPONENT_CAST:
+ case DEMANGLE_COMPONENT_CONVERSION:
case DEMANGLE_COMPONENT_JAVA_RESOURCE:
case DEMANGLE_COMPONENT_DECLTYPE:
case DEMANGLE_COMPONENT_PACK_EXPANSION:
case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
case DEMANGLE_COMPONENT_NULLARY:
case DEMANGLE_COMPONENT_TRINARY_ARG2:
+ case DEMANGLE_COMPONENT_TPARM_OBJ:
+ case DEMANGLE_COMPONENT_STRUCTURED_BINDING:
+ case DEMANGLE_COMPONENT_MODULE_INIT:
if (left == NULL)
return NULL;
break;
empty. */
case DEMANGLE_COMPONENT_ARRAY_TYPE:
case DEMANGLE_COMPONENT_INITIALIZER_LIST:
+ case DEMANGLE_COMPONENT_MODULE_NAME:
+ case DEMANGLE_COMPONENT_MODULE_PARTITION:
if (right == NULL)
return NULL;
break;
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_REFERENCE_THIS:
- case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
case DEMANGLE_COMPONENT_ARGLIST:
case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
+ FNQUAL_COMPONENT_CASE:
break;
/* Other types should not be seen here. */
/* Add a new template parameter. */
static struct demangle_component *
-d_make_template_param (struct d_info *di, long i)
+d_make_template_param (struct d_info *di, int i)
{
struct demangle_component *p;
/* Add a new function parameter. */
static struct demangle_component *
-d_make_function_param (struct d_info *di, long i)
+d_make_function_param (struct d_info *di, int i)
{
struct demangle_component *p;
{
default:
return 0;
+ case DEMANGLE_COMPONENT_LOCAL_NAME:
+ return has_return_type (d_right (dc));
case DEMANGLE_COMPONENT_TEMPLATE:
return ! is_ctor_dtor_or_conversion (d_left (dc));
- case DEMANGLE_COMPONENT_RESTRICT_THIS:
- case DEMANGLE_COMPONENT_VOLATILE_THIS:
- case DEMANGLE_COMPONENT_CONST_THIS:
- case DEMANGLE_COMPONENT_REFERENCE_THIS:
- case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
+ FNQUAL_COMPONENT_CASE:
return has_return_type (d_left (dc));
}
}
return is_ctor_dtor_or_conversion (d_right (dc));
case DEMANGLE_COMPONENT_CTOR:
case DEMANGLE_COMPONENT_DTOR:
- case DEMANGLE_COMPONENT_CAST:
+ case DEMANGLE_COMPONENT_CONVERSION:
return 1;
}
}
d_encoding (struct d_info *di, int top_level)
{
char peek = d_peek_char (di);
+ struct demangle_component *dc;
if (peek == 'G' || peek == 'T')
- return d_special_name (di);
+ dc = d_special_name (di);
else
{
- struct demangle_component *dc;
-
- dc = d_name (di);
+ dc = d_name (di, 0);
- if (dc != NULL && top_level && (di->options & DMGL_PARAMS) == 0)
+ if (!dc)
+ /* Failed already. */;
+ else if (top_level && (di->options & DMGL_PARAMS) == 0)
{
/* Strip off any initial CV-qualifiers, as they really apply
to the `this' parameter, and they were not output by the
v2 demangler without DMGL_PARAMS. */
- while (dc->type == DEMANGLE_COMPONENT_RESTRICT_THIS
- || dc->type == DEMANGLE_COMPONENT_VOLATILE_THIS
- || dc->type == DEMANGLE_COMPONENT_CONST_THIS
- || dc->type == DEMANGLE_COMPONENT_REFERENCE_THIS
- || dc->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS)
+ while (is_fnqual_component_type (dc->type))
dc = d_left (dc);
/* If the top level is a DEMANGLE_COMPONENT_LOCAL_NAME, then
- there may be CV-qualifiers on its right argument which
+ there may be function-qualifiers on its right argument which
really apply here; this happens when parsing a class
which is local to a function. */
if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
{
- struct demangle_component *dcr;
-
- dcr = d_right (dc);
- while (dcr->type == DEMANGLE_COMPONENT_RESTRICT_THIS
- || dcr->type == DEMANGLE_COMPONENT_VOLATILE_THIS
- || dcr->type == DEMANGLE_COMPONENT_CONST_THIS
- || dcr->type == DEMANGLE_COMPONENT_REFERENCE_THIS
- || dcr->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS)
- dcr = d_left (dcr);
- dc->u.s_binary.right = dcr;
- }
+ while (d_right (dc) != NULL
+ && is_fnqual_component_type (d_right (dc)->type))
+ d_right (dc) = d_left (d_right (dc));
- return dc;
+ if (d_right (dc) == NULL)
+ dc = NULL;
+ }
}
+ else
+ {
+ peek = d_peek_char (di);
+ if (peek != '\0' && peek != 'E')
+ {
+ struct demangle_component *ftype;
- peek = d_peek_char (di);
- 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)));
+ ftype = d_bare_function_type (di, has_return_type (dc));
+ if (ftype)
+ {
+ /* If this is a non-top-level local-name, clear the
+ return type, so it doesn't confuse the user by
+ being confused with the return type of whaever
+ this is nested within. */
+ if (!top_level && dc->type == DEMANGLE_COMPONENT_LOCAL_NAME
+ && ftype->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
+ d_left (ftype) = NULL;
+
+ dc = d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME,
+ dc, ftype);
+ }
+ else
+ dc = NULL;
+ }
+ }
}
+
+ return dc;
}
/* <tagged-name> ::= <name> B <source-name> */
*/
static struct demangle_component *
-d_name (struct d_info *di)
+d_name (struct d_info *di, int substable)
{
char peek = d_peek_char (di);
- struct demangle_component *dc;
+ struct demangle_component *dc = NULL;
+ struct demangle_component *module = NULL;
+ int subst = 0;
switch (peek)
{
case 'N':
- return d_nested_name (di);
+ dc = d_nested_name (di);
+ break;
case 'Z':
- return d_local_name (di);
+ dc = d_local_name (di);
+ break;
case 'U':
- return d_unqualified_name (di);
+ dc = d_unqualified_name (di, NULL, NULL);
+ break;
case 'S':
{
- int subst;
-
- if (d_peek_next_char (di) != 't')
- {
- dc = d_substitution (di, 0);
- subst = 1;
- }
- else
+ if (d_peek_next_char (di) == 't')
{
d_advance (di, 2);
- dc = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME,
- d_make_name (di, "std", 3),
- d_unqualified_name (di));
+ dc = d_make_name (di, "std", 3);
di->expansion += 3;
- subst = 0;
}
- if (d_peek_char (di) != 'I')
+ if (d_peek_char (di) == 'S')
{
- /* The grammar does not permit this case to occur if we
- called d_substitution() above (i.e., subst == 1). We
- don't bother to check. */
- }
- else
- {
- /* This is <template-args>, which means that we just saw
- <unscoped-template-name>, which is a substitution
- candidate if we didn't just get it from a
- substitution. */
- if (! subst)
+ module = d_substitution (di, 0);
+ if (!module)
+ return NULL;
+ if (!(module->type == DEMANGLE_COMPONENT_MODULE_NAME
+ || module->type == DEMANGLE_COMPONENT_MODULE_PARTITION))
{
- if (! d_add_substitution (di, dc))
+ if (dc)
return NULL;
+ subst = 1;
+ dc = module;
+ module = NULL;
}
- dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
- d_template_args (di));
}
-
- return dc;
}
+ /* FALLTHROUGH */
case 'L':
default:
- dc = d_unqualified_name (di);
+ if (!subst)
+ dc = d_unqualified_name (di, dc, module);
if (d_peek_char (di) == 'I')
{
/* This is <template-args>, which means that we just saw
<unscoped-template-name>, which is a substitution
candidate. */
- if (! d_add_substitution (di, dc))
+ if (!subst && !d_add_substitution (di, dc))
return NULL;
dc = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, dc,
d_template_args (di));
+ subst = 0;
}
- return dc;
+ break;
}
+ if (substable && !subst && !d_add_substitution (di, dc))
+ return NULL;
+ return dc;
}
/* <nested-name> ::= N [<CV-qualifiers>] [<ref-qualifier>] <prefix> <unqualified-name> E
once we have something to attach it to. */
rqual = d_ref_qualifier (di, NULL);
- *pret = d_prefix (di);
+ *pret = d_prefix (di, 1);
if (*pret == NULL)
return NULL;
<template-prefix> ::= <prefix> <(template) unqualified-name>
::= <template-param>
::= <substitution>
-*/
+
+ SUBST is true if we should add substitutions (as normal), false
+ if not (in an unresolved-name). */
static struct demangle_component *
-d_prefix (struct d_info *di)
+d_prefix (struct d_info *di, int substable)
{
struct demangle_component *ret = NULL;
- while (1)
+ for (;;)
{
- char peek;
- enum demangle_component_type comb_type;
- struct demangle_component *dc;
-
- peek = d_peek_char (di);
- if (peek == '\0')
- return NULL;
+ char peek = d_peek_char (di);
/* The older code accepts a <local-name> here, but I don't see
that in the grammar. The older code does not accept a
<template-param> here. */
- comb_type = DEMANGLE_COMPONENT_QUAL_NAME;
- if (peek == 'D')
+ if (peek == 'D'
+ && (d_peek_next_char (di) == 'T'
+ || d_peek_next_char (di) == 't'))
{
- char peek2 = d_peek_next_char (di);
- if (peek2 == 'T' || peek2 == 't')
- /* Decltype. */
- dc = cplus_demangle_type (di);
- else
- /* Destructor name. */
- dc = d_unqualified_name (di);
+ /* Decltype. */
+ if (ret)
+ return NULL;
+ ret = cplus_demangle_type (di);
}
- else if (IS_DIGIT (peek)
- || IS_LOWER (peek)
- || peek == 'C'
- || peek == 'U'
- || peek == 'L')
- dc = d_unqualified_name (di);
- else if (peek == 'S')
- dc = d_substitution (di, 1);
else if (peek == 'I')
{
if (ret == NULL)
return NULL;
- comb_type = DEMANGLE_COMPONENT_TEMPLATE;
- dc = d_template_args (di);
+ struct demangle_component *dc = d_template_args (di);
+ if (!dc)
+ return NULL;
+ ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret, dc);
}
else if (peek == 'T')
- dc = d_template_param (di);
- else if (peek == 'E')
- return ret;
+ {
+ if (ret)
+ return NULL;
+ ret = d_template_param (di);
+ }
else if (peek == 'M')
{
/* Initializer scope for a lambda. We don't need to represent
if (ret == NULL)
return NULL;
d_advance (di, 1);
- continue;
}
else
+ {
+ struct demangle_component *module = NULL;
+ if (peek == 'S')
+ {
+ module = d_substitution (di, 1);
+ if (!module)
+ return NULL;
+ if (!(module->type == DEMANGLE_COMPONENT_MODULE_NAME
+ || module->type == DEMANGLE_COMPONENT_MODULE_PARTITION))
+ {
+ if (ret)
+ return NULL;
+ ret = module;
+ continue;
+ }
+ }
+ ret = d_unqualified_name (di, ret, module);
+ }
+
+ if (!ret)
+ break;
+
+ if (d_peek_char (di) == 'E')
+ break;
+
+ if (substable && !d_add_substitution (di, ret))
return NULL;
+ }
- if (ret == NULL)
- ret = dc;
- else
- ret = d_make_comp (di, comb_type, ret, dc);
+ return ret;
+}
- if (peek != 'S' && d_peek_char (di) != 'E')
+static int
+d_maybe_module_name (struct d_info *di, struct demangle_component **name)
+{
+ while (d_peek_char (di) == 'W')
+ {
+ d_advance (di, 1);
+ enum demangle_component_type code = DEMANGLE_COMPONENT_MODULE_NAME;
+ if (d_peek_char (di) == 'P')
{
- if (! d_add_substitution (di, ret))
- return NULL;
+ code = DEMANGLE_COMPONENT_MODULE_PARTITION;
+ d_advance (di, 1);
}
+
+ *name = d_make_comp (di, code, *name, d_source_name (di));
+ if (!*name)
+ return 0;
+ if (!d_add_substitution (di, *name))
+ return 0;
}
+ return 1;
}
-/* <unqualified-name> ::= <operator-name>
- ::= <ctor-dtor-name>
- ::= <source-name>
- ::= <local-source-name>
-
- <local-source-name> ::= L <source-name> <discriminator>
+/* <unqualified-name> ::= [<module-name>] <operator-name> [<abi-tags>]
+ ::= [<module-name>] <ctor-dtor-name> [<abi-tags>]
+ ::= [<module-name>] <source-name> [<abi-tags>]
+ ::= [<module-name>] <local-source-name> [<abi-tags>]
+ ::= [<module-name>] DC <source-name>+ E [<abi-tags>]
+ <local-source-name> ::= L <source-name> <discriminator> [<abi-tags>]
*/
static struct demangle_component *
-d_unqualified_name (struct d_info *di)
+d_unqualified_name (struct d_info *di, struct demangle_component *scope,
+ struct demangle_component *module)
{
struct demangle_component *ret;
char peek;
+ if (!d_maybe_module_name (di, &module))
+ return NULL;
+
peek = d_peek_char (di);
if (IS_DIGIT (peek))
ret = d_source_name (di);
else if (IS_LOWER (peek))
{
+ int was_expr = di->is_expression;
+ if (peek == 'o' && d_peek_next_char (di) == 'n')
+ {
+ d_advance (di, 2);
+ /* Treat cv as naming a conversion operator. */
+ di->is_expression = 0;
+ }
ret = d_operator_name (di);
+ di->is_expression = was_expr;
if (ret != NULL && ret->type == DEMANGLE_COMPONENT_OPERATOR)
{
di->expansion += sizeof "operator" + ret->u.s_operator.op->len - 2;
d_source_name (di));
}
}
+ else if (peek == 'D' && d_peek_next_char (di) == 'C')
+ {
+ // structured binding
+ d_advance (di, 2);
+ struct demangle_component *prev = NULL;
+ do
+ {
+ struct demangle_component *next =
+ d_make_comp (di, DEMANGLE_COMPONENT_STRUCTURED_BINDING,
+ d_source_name (di), NULL);
+ if (prev)
+ d_right (prev) = next;
+ else
+ ret = next;
+ prev = next;
+ }
+ while (prev && d_peek_char (di) != 'E');
+ if (prev)
+ d_advance (di, 1);
+ else
+ ret = NULL;
+ }
else if (peek == 'C' || peek == 'D')
ret = d_ctor_dtor_name (di);
else if (peek == 'L')
else
return NULL;
+ if (module)
+ ret = d_make_comp (di, DEMANGLE_COMPONENT_MODULE_ENTITY, ret, module);
if (d_peek_char (di) == 'B')
ret = d_abi_tags (di, ret);
+ if (scope)
+ ret = d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, scope, ret);
+
return ret;
}
static struct demangle_component *
d_source_name (struct d_info *di)
{
- long len;
+ int len;
struct demangle_component *ret;
len = d_number (di);
/* number ::= [n] <(non-negative decimal integer)> */
-static long
+static int
d_number (struct d_info *di)
{
int negative;
char peek;
- long ret;
+ int ret;
negative = 0;
peek = d_peek_char (di);
ret = - ret;
return ret;
}
- ret = ret * 10 + peek - '0';
+ if (ret > ((INT_MAX - (peek - '0')) / 10))
+ return -1;
+ ret = ret * 10 + (peek - '0');
d_advance (di, 1);
peek = d_peek_char (di);
}
{ "ad", NL ("&"), 1 },
{ "an", NL ("&"), 2 },
{ "at", NL ("alignof "), 1 },
+ { "aw", NL ("co_await "), 1 },
{ "az", NL ("alignof "), 1 },
{ "cc", NL ("const_cast"), 2 },
{ "cl", NL ("()"), 2 },
{ "cm", NL (","), 2 },
{ "co", NL ("~"), 1 },
{ "dV", NL ("/="), 2 },
+ { "dX", NL ("[...]="), 3 }, /* [expr...expr] = expr */
{ "da", NL ("delete[] "), 1 },
{ "dc", NL ("dynamic_cast"), 2 },
{ "de", NL ("*"), 1 },
+ { "di", NL ("="), 2 }, /* .name = expr */
{ "dl", NL ("delete "), 1 },
{ "ds", NL (".*"), 2 },
{ "dt", NL ("."), 2 },
{ "dv", NL ("/"), 2 },
+ { "dx", NL ("]="), 2 }, /* [expr] = expr */
{ "eO", NL ("^="), 2 },
{ "eo", NL ("^"), 2 },
{ "eq", NL ("=="), 2 },
+ { "fL", NL ("..."), 3 },
+ { "fR", NL ("..."), 3 },
+ { "fl", NL ("..."), 2 },
+ { "fr", NL ("..."), 2 },
{ "ge", NL (">="), 2 },
{ "gs", NL ("::"), 1 },
{ "gt", NL (">"), 2 },
{ "rc", NL ("reinterpret_cast"), 2 },
{ "rm", NL ("%"), 2 },
{ "rs", NL (">>"), 2 },
+ { "sP", NL ("sizeof..."), 1 },
+ { "sZ", NL ("sizeof..."), 1 },
{ "sc", NL ("static_cast"), 2 },
+ { "ss", NL ("<=>"), 2 },
{ "st", NL ("sizeof "), 1 },
{ "sz", NL ("sizeof "), 1 },
{ "tr", NL ("throw"), 0 },
{
struct demangle_component *type;
int was_conversion = di->is_conversion;
+ struct demangle_component *res;
di->is_conversion = ! di->is_expression;
type = cplus_demangle_type (di);
+ if (di->is_conversion)
+ res = d_make_comp (di, DEMANGLE_COMPONENT_CONVERSION, type, NULL);
+ else
+ res = d_make_comp (di, DEMANGLE_COMPONENT_CAST, type, NULL);
di->is_conversion = was_conversion;
- return d_make_comp (di, DEMANGLE_COMPONENT_CAST, type, NULL);
+ return res;
}
else
{
{
struct demangle_component *p = NULL;
struct demangle_component *next = NULL;
- long len, i;
+ int len, i;
char c;
const char *str;
::= TT <type>
::= TI <type>
::= TS <type>
+ ::= TA <template-arg>
::= GV <(object) name>
::= T <call-offset> <(base) encoding>
::= Tc <call-offset> <call-offset> <(base) encoding>
case 'C':
{
struct demangle_component *derived_type;
- long offset;
+ int offset;
struct demangle_component *base_type;
derived_type = cplus_demangle_type (di);
case 'H':
return d_make_comp (di, DEMANGLE_COMPONENT_TLS_INIT,
- d_name (di), NULL);
+ d_name (di, 0), NULL);
case 'W':
return d_make_comp (di, DEMANGLE_COMPONENT_TLS_WRAPPER,
- d_name (di), NULL);
+ d_name (di, 0), NULL);
+
+ case 'A':
+ return d_make_comp (di, DEMANGLE_COMPONENT_TPARM_OBJ,
+ d_template_arg (di), NULL);
default:
return NULL;
switch (d_next_char (di))
{
case 'V':
- return d_make_comp (di, DEMANGLE_COMPONENT_GUARD, d_name (di), NULL);
+ return d_make_comp (di, DEMANGLE_COMPONENT_GUARD,
+ d_name (di, 0), NULL);
case 'R':
{
- struct demangle_component *name = d_name (di);
+ struct demangle_component *name = d_name (di, 0);
return d_make_comp (di, DEMANGLE_COMPONENT_REFTEMP, name,
d_number_component (di));
}
return d_make_comp (di, DEMANGLE_COMPONENT_HIDDEN_ALIAS,
d_encoding (di, 0), NULL);
+ case 'I':
+ {
+ struct demangle_component *module = NULL;
+ if (!d_maybe_module_name (di, &module) || !module)
+ return NULL;
+ return d_make_comp (di, DEMANGLE_COMPONENT_MODULE_INIT,
+ module, NULL);
+ }
case 'T':
switch (d_next_char (di))
{
case 'C':
{
enum gnu_v3_ctor_kinds kind;
+ int inheriting = 0;
+
+ if (d_peek_next_char (di) == 'I')
+ {
+ inheriting = 1;
+ d_advance (di, 1);
+ }
switch (d_peek_next_char (di))
{
default:
return NULL;
}
+
d_advance (di, 2);
+
+ if (inheriting)
+ cplus_demangle_type (di);
+
return d_make_ctor (di, kind, di->last_name);
}
}
}
+/* True iff we're looking at an order-insensitive type-qualifier, including
+ function-type-qualifiers. */
+
+static int
+next_is_type_qual (struct d_info *di)
+{
+ char peek = d_peek_char (di);
+ if (peek == 'r' || peek == 'V' || peek == 'K')
+ return 1;
+ if (peek == 'D')
+ {
+ peek = d_peek_next_char (di);
+ if (peek == 'x' || peek == 'o' || peek == 'O' || peek == 'w')
+ return 1;
+ }
+ return 0;
+}
+
/* <type> ::= <builtin-type>
::= <function-type>
::= <class-enum-type>
/* 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 },
- /* 32 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"),
+ /* 30 */ { NL ("char8_t"), NL ("char8_t"), D_PRINT_DEFAULT },
+ /* 31 */ { NL ("char16_t"), NL ("char16_t"), D_PRINT_DEFAULT },
+ /* 32 */ { NL ("char32_t"), NL ("char32_t"), D_PRINT_DEFAULT },
+ /* 33 */ { NL ("decltype(nullptr)"), NL ("decltype(nullptr)"),
D_PRINT_DEFAULT },
};
__vector, and it treats it as order-sensitive when mangling
names. */
- peek = d_peek_char (di);
- if (peek == 'r' || peek == 'V' || peek == 'K')
+ if (next_is_type_qual (di))
{
struct demangle_component **pret;
can_subst = 1;
+ peek = d_peek_char (di);
switch (peek)
{
case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g':
ret = d_function_type (di);
break;
- case '0': case '1': case '2': case '3': case '4':
- case '5': case '6': case '7': case '8': case '9':
- case 'N':
- case 'Z':
- ret = d_class_enum_type (di);
- break;
-
case 'A':
ret = d_array_type (di);
break;
}
break;
- case 'S':
- /* If this is a special substitution, then it is the start of
- <class-enum-type>. */
- {
- char peek_next;
-
- peek_next = d_peek_next_char (di);
- if (IS_DIGIT (peek_next)
- || peek_next == '_'
- || IS_UPPER (peek_next))
- {
- ret = d_substitution (di, 0);
- /* The substituted name may have been a template name and
- may be followed by tepmlate args. */
- if (d_peek_char (di) == 'I')
- ret = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, ret,
- d_template_args (di));
- else
- can_subst = 0;
- }
- else
- {
- ret = d_class_enum_type (di);
- /* If the substitution was a complete type, then it is not
- a new substitution candidate. However, if the
- substitution was followed by template arguments, then
- the whole thing is a substitution candidate. */
- if (ret != NULL && ret->type == DEMANGLE_COMPONENT_SUB_STD)
- can_subst = 0;
- }
- }
- break;
-
case 'O':
d_advance (di, 1);
ret = d_make_comp (di, DEMANGLE_COMPONENT_RVALUE_REFERENCE,
/* auto */
ret = d_make_name (di, "auto", 4);
break;
-
+ case 'c':
+ /* decltype(auto) */
+ ret = d_make_name (di, "decltype(auto)", 14);
+ break;
+
case 'f':
/* 32-bit decimal floating point */
ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[26]);
ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[29]);
di->expansion += ret->u.s_builtin.type->len;
break;
+ case 'u':
+ /* char8_t */
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
+ di->expansion += ret->u.s_builtin.type->len;
+ break;
case 's':
/* char16_t */
- ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[30]);
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
di->expansion += ret->u.s_builtin.type->len;
break;
case 'i':
/* char32_t */
- ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[31]);
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[32]);
di->expansion += ret->u.s_builtin.type->len;
break;
case 'n':
/* decltype(nullptr) */
- ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[32]);
+ ret = d_make_builtin_type (di, &cplus_demangle_builtin_types[33]);
di->expansion += ret->u.s_builtin.type->len;
break;
break;
default:
- return NULL;
+ return d_class_enum_type (di, 1);
}
if (can_subst)
return ret;
}
-/* <CV-qualifiers> ::= [r] [V] [K] */
+/* <CV-qualifiers> ::= [r] [V] [K] [Dx] */
static struct demangle_component **
d_cv_qualifiers (struct d_info *di,
pstart = pret;
peek = d_peek_char (di);
- while (peek == 'r' || peek == 'V' || peek == 'K')
+ while (next_is_type_qual (di))
{
enum demangle_component_type t;
+ struct demangle_component *right = NULL;
d_advance (di, 1);
if (peek == 'r')
: DEMANGLE_COMPONENT_VOLATILE);
di->expansion += sizeof "volatile";
}
- else
+ else if (peek == 'K')
{
t = (member_fn
? DEMANGLE_COMPONENT_CONST_THIS
: DEMANGLE_COMPONENT_CONST);
di->expansion += sizeof "const";
}
+ else
+ {
+ peek = d_next_char (di);
+ if (peek == 'x')
+ {
+ t = DEMANGLE_COMPONENT_TRANSACTION_SAFE;
+ di->expansion += sizeof "transaction_safe";
+ }
+ else if (peek == 'o'
+ || peek == 'O')
+ {
+ t = DEMANGLE_COMPONENT_NOEXCEPT;
+ di->expansion += sizeof "noexcept";
+ if (peek == 'O')
+ {
+ right = d_expression (di);
+ if (right == NULL)
+ return NULL;
+ if (! d_check_char (di, 'E'))
+ return NULL;
+ }
+ }
+ else if (peek == 'w')
+ {
+ t = DEMANGLE_COMPONENT_THROW_SPEC;
+ di->expansion += sizeof "throw";
+ right = d_parmlist (di);
+ if (right == NULL)
+ return NULL;
+ if (! d_check_char (di, 'E'))
+ return NULL;
+ }
+ else
+ return NULL;
+ }
- *pret = d_make_comp (di, t, NULL, NULL);
+ *pret = d_make_comp (di, t, NULL, right);
if (*pret == NULL)
return NULL;
pret = &d_left (*pret);
return ret;
}
-/* <function-type> ::= F [Y] <bare-function-type> [<ref-qualifier>] E */
+/* <function-type> ::= F [Y] <bare-function-type> [<ref-qualifier>] [T] E */
static struct demangle_component *
d_function_type (struct d_info *di)
{
- struct demangle_component *ret;
+ struct demangle_component *ret = NULL;
- if (! d_check_char (di, 'F'))
- return NULL;
- if (d_peek_char (di) == 'Y')
+ if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0)
{
- /* Function has C linkage. We don't print this information.
- FIXME: We should print it in verbose mode. */
- d_advance (di, 1);
+ if (di->recursion_level > DEMANGLE_RECURSION_LIMIT)
+ /* FIXME: There ought to be a way to report
+ that the recursion limit has been reached. */
+ return NULL;
+
+ di->recursion_level ++;
}
- ret = d_bare_function_type (di, 1);
- ret = d_ref_qualifier (di, ret);
- if (! d_check_char (di, 'E'))
- return NULL;
+ if (d_check_char (di, 'F'))
+ {
+ if (d_peek_char (di) == 'Y')
+ {
+ /* Function has C linkage. We don't print this information.
+ FIXME: We should print it in verbose mode. */
+ d_advance (di, 1);
+ }
+ ret = d_bare_function_type (di, 1);
+ ret = d_ref_qualifier (di, ret);
+
+ if (! d_check_char (di, 'E'))
+ ret = NULL;
+ }
+
+ if ((di->options & DMGL_NO_RECURSE_LIMIT) == 0)
+ di->recursion_level --;
return ret;
}
/* <class-enum-type> ::= <name> */
static struct demangle_component *
-d_class_enum_type (struct d_info *di)
+d_class_enum_type (struct d_info *di, int substable)
{
- return d_name (di);
+ return d_name (di, substable);
}
/* <array-type> ::= A <(positive dimension) number> _ <(element) type>
/* <non-negative number> _ */
-static long
+static int
d_compact_number (struct d_info *di)
{
- long num;
+ int num;
if (d_peek_char (di) == '_')
num = 0;
else if (d_peek_char (di) == 'n')
else
num = d_number (di) + 1;
- if (! d_check_char (di, '_'))
+ if (num < 0 || ! d_check_char (di, '_'))
return -1;
return num;
}
static struct demangle_component *
d_template_param (struct d_info *di)
{
- long param;
+ int param;
if (! d_check_char (di, 'T'))
return NULL;
if (param < 0)
return NULL;
- ++di->did_subs;
-
return d_make_template_param (di, param);
}
static struct demangle_component *
d_template_args (struct d_info *di)
+{
+ if (d_peek_char (di) != 'I'
+ && d_peek_char (di) != 'J')
+ return NULL;
+ d_advance (di, 1);
+
+ return d_template_args_1 (di);
+}
+
+/* <template-arg>* E */
+
+static struct demangle_component *
+d_template_args_1 (struct d_info *di)
{
struct demangle_component *hold_last_name;
struct demangle_component *al;
constructor or destructor. */
hold_last_name = di->last_name;
- if (d_peek_char (di) != 'I'
- && d_peek_char (di) != 'J')
- return NULL;
- d_advance (di, 1);
-
if (d_peek_char (di) == 'E')
{
/* An argument pack can be empty. */
|| code[0] == 'c' || code[0] == 'r'));
}
-/* <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>
- ::= sr <type> <unqualified-name> <template-args>
- ::= <expr-primary>
-*/
+/* <unresolved-name> ::= [gs] <base-unresolved-name> # x or (with "gs") ::x
+ ::= sr <unresolved-type> <base-unresolved-name> # T::x / decltype(p)::x
+ # T::N::x /decltype(p)::N::x
+ ::= srN <unresolved-type> <unresolved-qualifier-level>+ E <base-unresolved-name>
+ # A::x, N::y, A<T>::z; "gs" means leading "::"
+ ::= [gs] sr <unresolved-qualifier-level>+ E <base-unresolved-name>
-static inline struct demangle_component *
-d_expression_1 (struct d_info *di)
+ "gs" is handled elsewhere, as a unary operator. */
+
+static struct demangle_component *
+d_unresolved_name (struct d_info *di)
+{
+ struct demangle_component *type;
+ struct demangle_component *name;
+ char peek;
+
+ /* Consume the "sr". */
+ d_advance (di, 2);
+
+ peek = d_peek_char (di);
+ if (di->unresolved_name_state
+ && (IS_DIGIT (peek)
+ || IS_LOWER (peek)
+ || peek == 'C'
+ || peek == 'U'
+ || peek == 'L'))
+ {
+ /* The third production is ambiguous with the old unresolved-name syntax
+ of <type> <base-unresolved-name>; in the old mangling, A::x was mangled
+ as sr1A1x, now sr1AE1x. So we first try to demangle using the new
+ mangling, then with the old if that fails. */
+ di->unresolved_name_state = -1;
+ type = d_prefix (di, 0);
+ if (d_peek_char (di) == 'E')
+ d_advance (di, 1);
+ }
+ else
+ type = cplus_demangle_type (di);
+ name = d_unqualified_name (di, type, NULL);
+ if (d_peek_char (di) == 'I')
+ name = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
+ d_template_args (di));
+ return name;
+}
+
+/* <expression> ::= <(unary) operator-name> <expression>
+ ::= <(binary) operator-name> <expression> <expression>
+ ::= <(trinary) operator-name> <expression> <expression> <expression>
+ ::= cl <expression>+ E
+ ::= st <type>
+ ::= <template-param>
+ ::= u <source-name> <template-arg>* E # vendor extended expression
+ ::= <unresolved-name>
+ ::= <expr-primary>
+
+ <braced-expression> ::= <expression>
+ ::= di <field source-name> <braced-expression> # .name = expr
+ ::= dx <index expression> <braced-expression> # [expr] = expr
+ ::= dX <range begin expression> <range end expression> <braced-expression>
+ # [expr ... expr] = expr
+*/
+
+static struct demangle_component *
+d_expression_1 (struct d_info *di)
{
char peek;
else if (peek == 'T')
return d_template_param (di);
else if (peek == 's' && d_peek_next_char (di) == 'r')
- {
- struct demangle_component *type;
- struct demangle_component *name;
-
- d_advance (di, 2);
- type = cplus_demangle_type (di);
- name = d_unqualified_name (di);
- if (d_peek_char (di) != 'I')
- return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type, name);
- else
- return d_make_comp (di, DEMANGLE_COMPONENT_QUAL_NAME, type,
- d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE, name,
- d_template_args (di)));
- }
+ return d_unresolved_name (di);
else if (peek == 's' && d_peek_next_char (di) == 'p')
{
d_advance (di, 2);
}
else
{
- index = d_compact_number (di) + 1;
- if (index == 0)
+ index = d_compact_number (di);
+ if (index == INT_MAX || index == -1)
return NULL;
+ index++;
}
return d_make_function_param (di, index);
}
/* operator-function-id, i.e. operator+(t). */
d_advance (di, 2);
- name = d_unqualified_name (di);
+ name = d_unqualified_name (di, NULL, NULL);
if (name == NULL)
return NULL;
if (d_peek_char (di) == 'I')
{
/* Brace-enclosed initializer list, untyped or typed. */
struct demangle_component *type = NULL;
+ d_advance (di, 2);
if (peek == 't')
type = cplus_demangle_type (di);
- d_advance (di, 2);
+ if (!d_peek_char (di) || !d_peek_next_char (di))
+ return NULL;
return d_make_comp (di, DEMANGLE_COMPONENT_INITIALIZER_LIST,
type, d_exprlist (di, 'E'));
}
+ else if (peek == 'u')
+ {
+ /* A vendor extended expression. */
+ struct demangle_component *name, *args;
+ d_advance (di, 1);
+ name = d_source_name (di);
+ args = d_template_args_1 (di);
+ return d_make_comp (di, DEMANGLE_COMPONENT_VENDOR_EXPR, name, args);
+ }
else
{
struct demangle_component *op;
if (op->type == DEMANGLE_COMPONENT_CAST
&& d_check_char (di, '_'))
operand = d_exprlist (di, 'E');
+ else if (code && !strcmp (code, "sP"))
+ operand = d_template_args_1 (di);
else
operand = d_expression_1 (di);
if (suffix)
/* Indicate the suffix variant for d_print_comp. */
- return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
- d_make_comp (di,
- DEMANGLE_COMPONENT_BINARY_ARGS,
- operand, operand));
- else
- return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op,
- operand);
+ operand = d_make_comp (di, DEMANGLE_COMPONENT_BINARY_ARGS,
+ operand, operand);
+
+ return d_make_comp (di, DEMANGLE_COMPONENT_UNARY, op, operand);
}
case 2:
{
struct demangle_component *left;
struct demangle_component *right;
+ if (code == NULL)
+ return NULL;
if (op_is_new_cast (op))
left = cplus_demangle_type (di);
+ else if (code[0] == 'f')
+ /* fold-expression. */
+ left = d_operator_name (di);
+ else if (!strcmp (code, "di"))
+ left = d_unqualified_name (di, NULL, NULL);
else
left = d_expression_1 (di);
if (!strcmp (code, "cl"))
right = d_exprlist (di, 'E');
else if (!strcmp (code, "dt") || !strcmp (code, "pt"))
{
- right = d_unqualified_name (di);
- if (d_peek_char (di) == 'I')
- right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE,
- right, d_template_args (di));
+ peek = d_peek_char (di);
+ /* These codes start a qualified name. */
+ if ((peek == 'g' && d_peek_next_char (di) == 's')
+ || (peek == 's' && d_peek_next_char (di) == 'r'))
+ right = d_expression_1 (di);
+ else
+ {
+ /* Otherwise it's an unqualified name. We use
+ d_unqualified_name rather than d_expression_1 here for
+ old mangled names that didn't add 'on' before operator
+ names. */
+ right = d_unqualified_name (di, NULL, NULL);
+ if (d_peek_char (di) == 'I')
+ right = d_make_comp (di, DEMANGLE_COMPONENT_TEMPLATE,
+ right, d_template_args (di));
+ }
}
else
right = d_expression_1 (di);
struct demangle_component *second;
struct demangle_component *third;
- if (!strcmp (code, "qu"))
+ if (code == NULL)
+ return NULL;
+ else if (!strcmp (code, "qu")
+ || !strcmp (code, "dX"))
{
/* ?: expression. */
first = d_expression_1 (di);
second = d_expression_1 (di);
third = d_expression_1 (di);
+ if (third == NULL)
+ return NULL;
+ }
+ else if (code[0] == 'f')
+ {
+ /* fold-expression. */
+ first = d_operator_name (di);
+ second = d_expression_1 (di);
+ third = d_expression_1 (di);
+ if (third == NULL)
+ return NULL;
}
else if (code[0] == 'n')
{
&& type->u.s_builtin.type->print != D_PRINT_DEFAULT)
di->expansion -= type->u.s_builtin.type->len;
+ if (type->type == DEMANGLE_COMPONENT_BUILTIN_TYPE
+ && strcmp (type->u.s_builtin.type->name,
+ cplus_demangle_builtin_types[33].name) == 0)
+ {
+ if (d_peek_char (di) == 'E')
+ {
+ d_advance (di, 1);
+ return type;
+ }
+ }
+
/* Rather than try to interpret the literal value, we just
collect it as a string. Note that it's possible to have a
floating point literal here. The ABI specifies that the
d_local_name (struct d_info *di)
{
struct demangle_component *function;
+ struct demangle_component *name;
if (! d_check_char (di, 'Z'))
return NULL;
function = d_encoding (di, 0);
+ if (!function)
+ return NULL;
if (! d_check_char (di, 'E'))
return NULL;
d_advance (di, 1);
if (! d_discriminator (di))
return NULL;
- return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function,
- d_make_name (di, "string literal",
- sizeof "string literal" - 1));
+ name = d_make_name (di, "string literal", sizeof "string literal" - 1);
}
else
{
- struct demangle_component *name;
int num = -1;
if (d_peek_char (di) == 'd')
return NULL;
}
- name = d_name (di);
- if (name)
- switch (name->type)
- {
- /* Lambdas and unnamed types have internal discriminators. */
- case DEMANGLE_COMPONENT_LAMBDA:
- case DEMANGLE_COMPONENT_UNNAMED_TYPE:
- break;
- default:
- if (! d_discriminator (di))
- return NULL;
- }
+ name = d_name (di, 0);
+
+ if (name
+ /* Lambdas and unnamed types have internal discriminators
+ and are not functions. */
+ && name->type != DEMANGLE_COMPONENT_LAMBDA
+ && name->type != DEMANGLE_COMPONENT_UNNAMED_TYPE)
+ {
+ /* Read and ignore an optional discriminator. */
+ if (! d_discriminator (di))
+ return NULL;
+ }
+
if (num >= 0)
name = d_make_default_arg (di, num, name);
- return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
}
+
+ /* Elide the return type of the containing function so as to not
+ confuse the user thinking it is the return type of whatever local
+ function we might be containing. */
+ if (function->type == DEMANGLE_COMPONENT_TYPED_NAME
+ && d_right (function)->type == DEMANGLE_COMPONENT_FUNCTION_TYPE)
+ d_left (d_right (function)) = NULL;
+
+ return d_make_comp (di, DEMANGLE_COMPONENT_LOCAL_NAME, function, name);
}
-/* <discriminator> ::= _ <(non-negative) number>
+/* <discriminator> ::= _ <number> # when number < 10
+ ::= __ <number> _ # when number >= 10
+
+ <discriminator> ::= _ <number> # when number >=10
+ is also accepted to support gcc versions that wrongly mangled that way.
We demangle the discriminator, but we don't print it out. FIXME:
We should print it out in verbose mode. */
static int
d_discriminator (struct d_info *di)
{
- long discrim;
+ int discrim, num_underscores = 1;
if (d_peek_char (di) != '_')
return 1;
d_advance (di, 1);
+ if (d_peek_char (di) == '_')
+ {
+ ++num_underscores;
+ d_advance (di, 1);
+ }
+
discrim = d_number (di);
if (discrim < 0)
return 0;
+ if (num_underscores > 1 && discrim >= 10)
+ {
+ if (d_peek_char (di) == '_')
+ d_advance (di, 1);
+ else
+ return 0;
+ }
+
return 1;
}
ret->u.s_unary_num.num = num;
}
- if (! d_add_substitution (di, ret))
- return NULL;
-
return ret;
}
d_unnamed_type (struct d_info *di)
{
struct demangle_component *ret;
- long num;
+ int num;
if (! d_check_char (di, 'U'))
return NULL;
const char *pend = suffix;
struct demangle_component *n;
- if (*pend == '.' && (IS_LOWER (pend[1]) || pend[1] == '_'))
+ if (*pend == '.' && (IS_LOWER (pend[1]) || IS_DIGIT (pend[1])
+ || pend[1] == '_'))
{
pend += 2;
- while (IS_LOWER (*pend) || *pend == '_')
+ while (IS_LOWER (*pend) || IS_DIGIT (*pend) || *pend == '_')
++pend;
}
while (*pend == '.' && IS_DIGIT (pend[1]))
if (id >= (unsigned int) di->next_sub)
return NULL;
- ++di->did_subs;
-
return di->subs[id];
}
else
{
const char *s;
int len;
- struct demangle_component *c;
+ struct demangle_component *dc;
if (p->set_last_name != NULL)
di->last_name = d_make_sub (di, p->set_last_name,
len = p->simple_len;
}
di->expansion += len;
- c = d_make_sub (di, s, len);
+ dc = d_make_sub (di, s, len);
if (d_peek_char (di) == 'B')
{
/* If there are ABI tags on the abbreviation, it becomes
a substitution candidate. */
- c = d_abi_tags (di, c);
- d_add_substitution (di, c);
+ dc = d_abi_tags (di, dc);
+ if (! d_add_substitution (di, dc))
+ return NULL;
}
- return c;
+ return dc;
}
}
checkpoint->n = di->n;
checkpoint->next_comp = di->next_comp;
checkpoint->next_sub = di->next_sub;
- checkpoint->did_subs = di->did_subs;
checkpoint->expansion = di->expansion;
}
di->n = checkpoint->n;
di->next_comp = checkpoint->next_comp;
di->next_sub = checkpoint->next_sub;
- di->did_subs = checkpoint->did_subs;
di->expansion = checkpoint->expansion;
}
are larger than the actual numbers encountered. */
static void
-d_count_templates_scopes (int *num_templates, int *num_scopes,
- const struct demangle_component *dc)
+d_count_templates_scopes (struct d_print_info *dpi,
+ struct demangle_component *dc)
{
- if (dc == NULL)
+ if (dc == NULL || dc->d_counting > 1 || dpi->recursion > MAX_RECURSION_COUNT)
return;
+ ++ dc->d_counting;
+
switch (dc->type)
{
case DEMANGLE_COMPONENT_NAME:
case DEMANGLE_COMPONENT_CHARACTER:
case DEMANGLE_COMPONENT_NUMBER:
case DEMANGLE_COMPONENT_UNNAMED_TYPE:
+ case DEMANGLE_COMPONENT_STRUCTURED_BINDING:
+ case DEMANGLE_COMPONENT_MODULE_NAME:
+ case DEMANGLE_COMPONENT_MODULE_PARTITION:
+ case DEMANGLE_COMPONENT_MODULE_INIT:
break;
case DEMANGLE_COMPONENT_TEMPLATE:
- (*num_templates)++;
+ dpi->num_copy_templates++;
goto recurse_left_right;
case DEMANGLE_COMPONENT_REFERENCE:
case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
- (*num_scopes)++;
+ dpi->num_saved_scopes++;
goto recurse_left_right;
case DEMANGLE_COMPONENT_QUAL_NAME:
case DEMANGLE_COMPONENT_CONST_THIS:
case DEMANGLE_COMPONENT_REFERENCE_THIS:
case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
+ case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
+ case DEMANGLE_COMPONENT_NOEXCEPT:
+ case DEMANGLE_COMPONENT_THROW_SPEC:
case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
case DEMANGLE_COMPONENT_POINTER:
case DEMANGLE_COMPONENT_COMPLEX:
case DEMANGLE_COMPONENT_VECTOR_TYPE:
case DEMANGLE_COMPONENT_ARGLIST:
case DEMANGLE_COMPONENT_TEMPLATE_ARGLIST:
+ case DEMANGLE_COMPONENT_TPARM_OBJ:
case DEMANGLE_COMPONENT_INITIALIZER_LIST:
case DEMANGLE_COMPONENT_CAST:
+ case DEMANGLE_COMPONENT_CONVERSION:
case DEMANGLE_COMPONENT_NULLARY:
case DEMANGLE_COMPONENT_UNARY:
case DEMANGLE_COMPONENT_BINARY:
case DEMANGLE_COMPONENT_TRINARY_ARG2:
case DEMANGLE_COMPONENT_LITERAL:
case DEMANGLE_COMPONENT_LITERAL_NEG:
+ case DEMANGLE_COMPONENT_VENDOR_EXPR:
case DEMANGLE_COMPONENT_JAVA_RESOURCE:
case DEMANGLE_COMPONENT_COMPOUND_NAME:
case DEMANGLE_COMPONENT_DECLTYPE:
case DEMANGLE_COMPONENT_TAGGED_NAME:
case DEMANGLE_COMPONENT_CLONE:
recurse_left_right:
- d_count_templates_scopes (num_templates, num_scopes,
- d_left (dc));
- d_count_templates_scopes (num_templates, num_scopes,
- d_right (dc));
+ /* PR 89394 - Check for too much recursion. */
+ if (dpi->recursion > DEMANGLE_RECURSION_LIMIT)
+ /* FIXME: There ought to be a way to report to the
+ user that the recursion limit has been reached. */
+ return;
+
+ ++ dpi->recursion;
+ d_count_templates_scopes (dpi, d_left (dc));
+ d_count_templates_scopes (dpi, d_right (dc));
+ -- dpi->recursion;
break;
case DEMANGLE_COMPONENT_CTOR:
- d_count_templates_scopes (num_templates, num_scopes,
- dc->u.s_ctor.name);
+ d_count_templates_scopes (dpi, dc->u.s_ctor.name);
break;
case DEMANGLE_COMPONENT_DTOR:
- d_count_templates_scopes (num_templates, num_scopes,
- dc->u.s_dtor.name);
+ d_count_templates_scopes (dpi, dc->u.s_dtor.name);
break;
case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
- d_count_templates_scopes (num_templates, num_scopes,
- dc->u.s_extended_operator.name);
+ d_count_templates_scopes (dpi, dc->u.s_extended_operator.name);
break;
case DEMANGLE_COMPONENT_FIXED_TYPE:
- d_count_templates_scopes (num_templates, num_scopes,
- dc->u.s_fixed.length);
+ d_count_templates_scopes (dpi, dc->u.s_fixed.length);
break;
case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
- d_count_templates_scopes (num_templates, num_scopes,
- d_left (dc));
+ case DEMANGLE_COMPONENT_MODULE_ENTITY:
+ d_count_templates_scopes (dpi, d_left (dc));
break;
case DEMANGLE_COMPONENT_LAMBDA:
case DEMANGLE_COMPONENT_DEFAULT_ARG:
- d_count_templates_scopes (num_templates, num_scopes,
- dc->u.s_unary_num.sub);
+ d_count_templates_scopes (dpi, dc->u.s_unary_num.sub);
break;
}
}
static void
d_print_init (struct d_print_info *dpi, demangle_callbackref callback,
- void *opaque, const struct demangle_component *dc)
+ void *opaque, struct demangle_component *dc)
{
dpi->len = 0;
dpi->last_char = '\0';
dpi->opaque = opaque;
dpi->demangle_failure = 0;
+ dpi->recursion = 0;
+ dpi->is_lambda_arg = 0;
dpi->component_stack = NULL;
dpi->next_copy_template = 0;
dpi->num_copy_templates = 0;
- d_count_templates_scopes (&dpi->num_copy_templates,
- &dpi->num_saved_scopes, dc);
+ d_count_templates_scopes (dpi, dc);
+ /* If we did not reach the recursion limit, then reset the
+ current recursion value back to 0, so that we can print
+ the templates. */
+ if (dpi->recursion < DEMANGLE_RECURSION_LIMIT)
+ dpi->recursion = 0;
dpi->num_copy_templates *= dpi->num_saved_scopes;
dpi->current_template = NULL;
}
static inline void
-d_append_num (struct d_print_info *dpi, long l)
+d_append_num (struct d_print_info *dpi, int l)
{
char buf[25];
- sprintf (buf,"%ld", l);
+ sprintf (buf,"%d", l);
d_append_string (dpi, buf);
}
CP_STATIC_IF_GLIBCPP_V3
int
cplus_demangle_print_callback (int options,
- const struct demangle_component *dc,
+ struct demangle_component *dc,
demangle_callbackref callback, void *opaque)
{
struct d_print_info dpi;
{
#ifdef CP_DYNAMIC_ARRAYS
- __extension__ struct d_saved_scope scopes[dpi.num_saved_scopes];
- __extension__ struct d_print_template temps[dpi.num_copy_templates];
+ /* Avoid zero-length VLAs, which are prohibited by the C99 standard
+ and flagged as errors by Address Sanitizer. */
+ __extension__ struct d_saved_scope scopes[(dpi.num_saved_scopes > 0)
+ ? dpi.num_saved_scopes : 1];
+ __extension__ struct d_print_template temps[(dpi.num_copy_templates > 0)
+ ? dpi.num_copy_templates : 1];
dpi.saved_scopes = scopes;
dpi.copy_templates = temps;
CP_STATIC_IF_GLIBCPP_V3
char *
-cplus_demangle_print (int options, const struct demangle_component *dc,
+cplus_demangle_print (int options, struct demangle_component *dc,
int estimate, size_t *palc)
{
struct d_growable_string dgs;
}
/* Returns the I'th element of the template arglist ARGS, or NULL on
- failure. */
+ failure. If I is negative, return the entire arglist. */
static struct demangle_component *
d_index_template_argument (struct demangle_component *args, int i)
{
struct demangle_component *a;
+ if (i < 0)
+ /* Print the whole argument pack. */
+ return args;
+
for (a = args;
a != NULL;
a = d_right (a))
case DEMANGLE_COMPONENT_CHARACTER:
case DEMANGLE_COMPONENT_FUNCTION_PARAM:
case DEMANGLE_COMPONENT_UNNAMED_TYPE:
+ case DEMANGLE_COMPONENT_FIXED_TYPE:
+ case DEMANGLE_COMPONENT_DEFAULT_ARG:
+ case DEMANGLE_COMPONENT_NUMBER:
return NULL;
case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
return count;
}
+/* Returns the number of template args in DC, expanding any pack expansions
+ found there. */
+
+static int
+d_args_length (struct d_print_info *dpi, const struct demangle_component *dc)
+{
+ int count = 0;
+ for (; dc && dc->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST;
+ dc = d_right (dc))
+ {
+ struct demangle_component *elt = d_left (dc);
+ if (elt == NULL)
+ break;
+ if (elt->type == DEMANGLE_COMPONENT_PACK_EXPANSION)
+ {
+ struct demangle_component *a = d_find_pack (dpi, d_left (elt));
+ count += d_pack_length (a);
+ }
+ else
+ ++count;
+ }
+ return count;
+}
+
/* 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, int options,
- const struct demangle_component *dc)
+ struct demangle_component *dc)
{
int simple = 0;
if (dc->type == DEMANGLE_COMPONENT_NAME
return NULL;
}
+/* If DC is a C++17 fold-expression, print it and return true; otherwise
+ return false. */
+
+static int
+d_maybe_print_fold_expression (struct d_print_info *dpi, int options,
+ struct demangle_component *dc)
+{
+ struct demangle_component *ops, *operator_, *op1, *op2;
+ int save_idx;
+
+ const char *fold_code = d_left (dc)->u.s_operator.op->code;
+ if (fold_code[0] != 'f')
+ return 0;
+
+ ops = d_right (dc);
+ operator_ = d_left (ops);
+ op1 = d_right (ops);
+ op2 = 0;
+ if (op1->type == DEMANGLE_COMPONENT_TRINARY_ARG2)
+ {
+ op2 = d_right (op1);
+ op1 = d_left (op1);
+ }
+
+ /* Print the whole pack. */
+ save_idx = dpi->pack_index;
+ dpi->pack_index = -1;
+
+ switch (fold_code[1])
+ {
+ /* Unary left fold, (... + X). */
+ case 'l':
+ d_append_string (dpi, "(...");
+ d_print_expr_op (dpi, options, operator_);
+ d_print_subexpr (dpi, options, op1);
+ d_append_char (dpi, ')');
+ break;
+
+ /* Unary right fold, (X + ...). */
+ case 'r':
+ d_append_char (dpi, '(');
+ d_print_subexpr (dpi, options, op1);
+ d_print_expr_op (dpi, options, operator_);
+ d_append_string (dpi, "...)");
+ break;
+
+ /* Binary left fold, (42 + ... + X). */
+ case 'L':
+ /* Binary right fold, (X + ... + 42). */
+ case 'R':
+ d_append_char (dpi, '(');
+ d_print_subexpr (dpi, options, op1);
+ d_print_expr_op (dpi, options, operator_);
+ d_append_string (dpi, "...");
+ d_print_expr_op (dpi, options, operator_);
+ d_print_subexpr (dpi, options, op2);
+ d_append_char (dpi, ')');
+ break;
+ }
+
+ dpi->pack_index = save_idx;
+ return 1;
+}
+
+/* True iff DC represents a C99-style designated initializer. */
+
+static int
+is_designated_init (struct demangle_component *dc)
+{
+ if (dc->type != DEMANGLE_COMPONENT_BINARY
+ && dc->type != DEMANGLE_COMPONENT_TRINARY)
+ return 0;
+
+ struct demangle_component *op = d_left (dc);
+ const char *code = op->u.s_operator.op->code;
+ return (code[0] == 'd'
+ && (code[1] == 'i' || code[1] == 'x' || code[1] == 'X'));
+}
+
+/* If DC represents a C99-style designated initializer, print it and return
+ true; otherwise, return false. */
+
+static int
+d_maybe_print_designated_init (struct d_print_info *dpi, int options,
+ struct demangle_component *dc)
+{
+ if (!is_designated_init (dc))
+ return 0;
+
+ const char *code = d_left (dc)->u.s_operator.op->code;
+
+ struct demangle_component *operands = d_right (dc);
+ struct demangle_component *op1 = d_left (operands);
+ struct demangle_component *op2 = d_right (operands);
+
+ if (code[1] == 'i')
+ d_append_char (dpi, '.');
+ else
+ d_append_char (dpi, '[');
+
+ d_print_comp (dpi, options, op1);
+ if (code[1] == 'X')
+ {
+ d_append_string (dpi, " ... ");
+ d_print_comp (dpi, options, d_left (op2));
+ op2 = d_right (op2);
+ }
+ if (code[1] != 'i')
+ d_append_char (dpi, ']');
+ if (is_designated_init (op2))
+ {
+ /* Don't put '=' or '(' between chained designators. */
+ d_print_comp (dpi, options, op2);
+ }
+ else
+ {
+ d_append_char (dpi, '=');
+ d_print_subexpr (dpi, options, op2);
+ }
+ return 1;
+}
+
/* Subroutine to handle components. */
static void
d_print_comp_inner (struct d_print_info *dpi, int options,
- const struct demangle_component *dc)
+ struct demangle_component *dc)
{
/* Magic variable to let reference smashing skip over the next modifier
without needing to modify *dc. */
- const struct demangle_component *mod_inner = NULL;
+ struct demangle_component *mod_inner = NULL;
/* Variable used to store the current templates while a previously
captured scope is used. */
d_append_char (dpi, ']');
return;
+ case DEMANGLE_COMPONENT_STRUCTURED_BINDING:
+ d_append_char (dpi, '[');
+ for (;;)
+ {
+ d_print_comp (dpi, options, d_left (dc));
+ dc = d_right (dc);
+ if (!dc)
+ break;
+ d_append_string (dpi, ", ");
+ }
+ d_append_char (dpi, ']');
+ return;
+
+ case DEMANGLE_COMPONENT_MODULE_ENTITY:
+ d_print_comp (dpi, options, d_left (dc));
+ d_append_char (dpi, '@');
+ d_print_comp (dpi, options, d_right (dc));
+ return;
+
+ case DEMANGLE_COMPONENT_MODULE_NAME:
+ case DEMANGLE_COMPONENT_MODULE_PARTITION:
+ {
+ if (d_left (dc))
+ d_print_comp (dpi, options, d_left (dc));
+ char c = dc->type == DEMANGLE_COMPONENT_MODULE_PARTITION
+ ? ':' : d_left (dc) ? '.' : 0;
+ if (c)
+ d_append_char (dpi, c);
+ d_print_comp (dpi, options, d_right (dc));
+ }
+ return;
+
case DEMANGLE_COMPONENT_QUAL_NAME:
case DEMANGLE_COMPONENT_LOCAL_NAME:
d_print_comp (dpi, options, d_left (dc));
adpm[i].templates = dpi->templates;
++i;
- if (typed_name->type != DEMANGLE_COMPONENT_RESTRICT_THIS
- && typed_name->type != DEMANGLE_COMPONENT_VOLATILE_THIS
- && typed_name->type != DEMANGLE_COMPONENT_CONST_THIS
- && typed_name->type != DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS
- && typed_name->type != DEMANGLE_COMPONENT_REFERENCE_THIS)
+ if (!is_fnqual_component_type (typed_name->type))
break;
typed_name = d_left (typed_name);
return;
}
- /* If typed_name is a template, then it applies to the
- function type as well. */
- if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
- {
- dpt.next = dpi->templates;
- dpi->templates = &dpt;
- dpt.template_decl = typed_name;
- }
-
/* If typed_name is a DEMANGLE_COMPONENT_LOCAL_NAME, then
there may be CV-qualifiers on its right argument which
- really apply here; this happens when parsing a class which
+ really apply here; this happens when parsing a class that
is local to a function. */
if (typed_name->type == DEMANGLE_COMPONENT_LOCAL_NAME)
{
- struct demangle_component *local_name;
-
- local_name = d_right (typed_name);
- if (local_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
- local_name = local_name->u.s_unary_num.sub;
- while (local_name->type == DEMANGLE_COMPONENT_RESTRICT_THIS
- || local_name->type == DEMANGLE_COMPONENT_VOLATILE_THIS
- || local_name->type == DEMANGLE_COMPONENT_CONST_THIS
- || local_name->type == DEMANGLE_COMPONENT_REFERENCE_THIS
- || (local_name->type
- == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS))
+ typed_name = d_right (typed_name);
+ if (typed_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
+ typed_name = typed_name->u.s_unary_num.sub;
+ while (typed_name != NULL
+ && is_fnqual_component_type (typed_name->type))
{
if (i >= sizeof adpm / sizeof adpm[0])
{
adpm[i].next = &adpm[i - 1];
dpi->modifiers = &adpm[i];
- adpm[i - 1].mod = local_name;
+ adpm[i - 1].mod = typed_name;
adpm[i - 1].printed = 0;
adpm[i - 1].templates = dpi->templates;
++i;
- local_name = d_left (local_name);
+ 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)
+ {
+ dpt.next = dpi->templates;
+ dpi->templates = &dpt;
+ dpt.template_decl = typed_name;
+ }
+
d_print_comp (dpi, options, d_right (dc));
if (typed_name->type == DEMANGLE_COMPONENT_TEMPLATE)
}
case DEMANGLE_COMPONENT_TEMPLATE_PARAM:
- {
- struct d_print_template *hold_dpt;
- struct demangle_component *a = d_lookup_template_argument (dpi, dc);
+ if (dpi->is_lambda_arg)
+ {
+ /* Show the template parm index, as that's how g++ displays
+ these, and future proofs us against potential
+ '[]<typename T> (T *a, T *b) {...}'. */
+ d_append_buffer (dpi, "auto:", 5);
+ d_append_num (dpi, dc->u.s_number.number + 1);
+ }
+ else
+ {
+ struct d_print_template *hold_dpt;
+ struct demangle_component *a = d_lookup_template_argument (dpi, dc);
- if (a && a->type == DEMANGLE_COMPONENT_TEMPLATE_ARGLIST)
- a = d_index_template_argument (a, dpi->pack_index);
+ 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;
- }
+ if (a == NULL)
+ {
+ d_print_error (dpi);
+ return;
+ }
- /* While processing this parameter, we need to pop the list of
- templates. This is because the template parameter may
- itself be a reference to a parameter of an outer
- template. */
+ /* While processing this parameter, we need to pop the list
+ of templates. This is because the template parameter may
+ itself be a reference to a parameter of an outer
+ template. */
- hold_dpt = dpi->templates;
- dpi->templates = hold_dpt->next;
+ hold_dpt = dpi->templates;
+ dpi->templates = hold_dpt->next;
- d_print_comp (dpi, options, a);
+ d_print_comp (dpi, options, a);
- dpi->templates = hold_dpt;
+ dpi->templates = hold_dpt;
+ }
+ return;
- return;
- }
+ case DEMANGLE_COMPONENT_TPARM_OBJ:
+ d_append_string (dpi, "template parameter object for ");
+ d_print_comp (dpi, options, d_left (dc));
+ return;
case DEMANGLE_COMPONENT_CTOR:
d_print_comp (dpi, options, dc->u.s_ctor.name);
d_print_comp (dpi, options, dc->u.s_dtor.name);
return;
+ case DEMANGLE_COMPONENT_MODULE_INIT:
+ d_append_string (dpi, "initializer for module ");
+ d_print_comp (dpi, options, d_left (dc));
+ return;
+
case DEMANGLE_COMPONENT_VTABLE:
d_append_string (dpi, "vtable for ");
d_print_comp (dpi, options, d_left (dc));
case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
{
/* Handle reference smashing: & + && = &. */
- const struct demangle_component *sub = d_left (dc);
- if (sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
+ struct demangle_component *sub = d_left (dc);
+ if (!dpi->is_lambda_arg
+ && sub->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
{
struct d_saved_scope *scope = d_get_saved_scope (dpi, sub);
struct demangle_component *a;
}
/* Fall through. */
- case DEMANGLE_COMPONENT_RESTRICT_THIS:
- case DEMANGLE_COMPONENT_VOLATILE_THIS:
- case DEMANGLE_COMPONENT_CONST_THIS:
- case DEMANGLE_COMPONENT_REFERENCE_THIS:
- case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
case DEMANGLE_COMPONENT_POINTER:
case DEMANGLE_COMPONENT_COMPLEX:
case DEMANGLE_COMPONENT_IMAGINARY:
+ FNQUAL_COMPONENT_CASE:
modifier:
{
/* We keep a list of modifiers on the stack. */
d_print_comp (dpi, options, dc->u.s_extended_operator.name);
return;
- case DEMANGLE_COMPONENT_CAST:
+ case DEMANGLE_COMPONENT_CONVERSION:
d_append_string (dpi, "operator ");
- d_print_cast (dpi, options, dc);
+ d_print_conversion (dpi, options, dc);
return;
case DEMANGLE_COMPONENT_NULLARY:
}
}
+ /* For sizeof..., just print the pack length. */
+ if (code && !strcmp (code, "sZ"))
+ {
+ struct demangle_component *a = d_find_pack (dpi, operand);
+ int len = d_pack_length (a);
+ d_append_num (dpi, len);
+ return;
+ }
+ else if (code && !strcmp (code, "sP"))
+ {
+ int len = d_args_length (dpi, operand);
+ d_append_num (dpi, len);
+ return;
+ }
+
if (op->type != DEMANGLE_COMPONENT_CAST)
d_print_expr_op (dpi, options, op);
else
return;
}
+ if (d_maybe_print_fold_expression (dpi, options, dc))
+ return;
+
+ if (d_maybe_print_designated_init (dpi, options, dc))
+ return;
+
/* We wrap an expression which uses the greater-than operator in
an extra layer of parens so that it does not get confused
with the '>' which ends the template parameters. */
d_print_error (dpi);
return;
}
+ if (d_maybe_print_fold_expression (dpi, options, dc))
+ return;
+ if (d_maybe_print_designated_init (dpi, options, dc))
+ return;
{
struct demangle_component *op = d_left (dc);
struct demangle_component *first = d_left (d_right (dc));
}
return;
+ case DEMANGLE_COMPONENT_VENDOR_EXPR:
+ d_print_comp (dpi, options, d_left (dc));
+ d_append_char (dpi, '(');
+ d_print_comp (dpi, options, d_right (dc));
+ d_append_char (dpi, ')');
+ return;
+
case DEMANGLE_COMPONENT_NUMBER:
d_append_num (dpi, dc->u.s_number.number);
return;
case DEMANGLE_COMPONENT_LAMBDA:
d_append_string (dpi, "{lambda(");
+ /* Generic lambda auto parms are mangled as the template type
+ parm they are. */
+ dpi->is_lambda_arg++;
d_print_comp (dpi, options, dc->u.s_unary_num.sub);
+ dpi->is_lambda_arg--;
d_append_string (dpi, ")#");
d_append_num (dpi, dc->u.s_unary_num.num + 1);
d_append_char (dpi, '}');
static void
d_print_comp (struct d_print_info *dpi, int options,
- const struct demangle_component *dc)
+ struct demangle_component *dc)
{
struct d_component_stack self;
+ if (dc == NULL || dc->d_printing > 1 || dpi->recursion > MAX_RECURSION_COUNT)
+ {
+ d_print_error (dpi);
+ return;
+ }
+
+ dc->d_printing++;
+ dpi->recursion++;
self.dc = dc;
self.parent = dpi->component_stack;
d_print_comp_inner (dpi, options, dc);
dpi->component_stack = self.parent;
+ dc->d_printing--;
+ dpi->recursion--;
}
/* Print a Java dentifier. For Java we try to handle encoded extended
if (mods->printed
|| (! suffix
- && (mods->mod->type == DEMANGLE_COMPONENT_RESTRICT_THIS
- || mods->mod->type == DEMANGLE_COMPONENT_VOLATILE_THIS
- || mods->mod->type == DEMANGLE_COMPONENT_CONST_THIS
- || mods->mod->type == DEMANGLE_COMPONENT_REFERENCE_THIS
- || (mods->mod->type
- == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS))))
+ && (is_fnqual_component_type (mods->mod->type))))
{
d_print_mod_list (dpi, options, mods->next, suffix);
return;
dc = dc->u.s_unary_num.sub;
}
- while (dc->type == DEMANGLE_COMPONENT_RESTRICT_THIS
- || dc->type == DEMANGLE_COMPONENT_VOLATILE_THIS
- || dc->type == DEMANGLE_COMPONENT_CONST_THIS
- || dc->type == DEMANGLE_COMPONENT_REFERENCE_THIS
- || dc->type == DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS)
+ while (is_fnqual_component_type (dc->type))
dc = d_left (dc);
d_print_comp (dpi, options, dc);
static void
d_print_mod (struct d_print_info *dpi, int options,
- const struct demangle_component *mod)
+ struct demangle_component *mod)
{
switch (mod->type)
{
case DEMANGLE_COMPONENT_CONST_THIS:
d_append_string (dpi, " const");
return;
+ case DEMANGLE_COMPONENT_TRANSACTION_SAFE:
+ d_append_string (dpi, " transaction_safe");
+ return;
+ case DEMANGLE_COMPONENT_NOEXCEPT:
+ d_append_string (dpi, " noexcept");
+ if (d_right (mod))
+ {
+ d_append_char (dpi, '(');
+ d_print_comp (dpi, options, d_right (mod));
+ d_append_char (dpi, ')');
+ }
+ return;
+ case DEMANGLE_COMPONENT_THROW_SPEC:
+ d_append_string (dpi, " throw");
+ if (d_right (mod))
+ {
+ d_append_char (dpi, '(');
+ d_print_comp (dpi, options, d_right (mod));
+ d_append_char (dpi, ')');
+ }
+ return;
case DEMANGLE_COMPONENT_VENDOR_TYPE_QUAL:
d_append_char (dpi, ' ');
d_print_comp (dpi, options, d_right (mod));
case DEMANGLE_COMPONENT_REFERENCE_THIS:
/* For the ref-qualifier, put a space before the &. */
d_append_char (dpi, ' ');
+ /* FALLTHRU */
case DEMANGLE_COMPONENT_REFERENCE:
d_append_char (dpi, '&');
return;
case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
d_append_char (dpi, ' ');
+ /* FALLTHRU */
case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
d_append_string (dpi, "&&");
return;
case DEMANGLE_COMPONENT_COMPLEX:
- d_append_string (dpi, "complex ");
+ d_append_string (dpi, " _Complex");
return;
case DEMANGLE_COMPONENT_IMAGINARY:
- d_append_string (dpi, "imaginary ");
+ d_append_string (dpi, " _Imaginary");
return;
case DEMANGLE_COMPONENT_PTRMEM_TYPE:
if (d_last_char (dpi) != '(')
static void
d_print_function_type (struct d_print_info *dpi, int options,
- const struct demangle_component *dc,
+ struct demangle_component *dc,
struct d_print_mod *mods)
{
int need_paren;
need_space = 1;
need_paren = 1;
break;
- case DEMANGLE_COMPONENT_RESTRICT_THIS:
- case DEMANGLE_COMPONENT_VOLATILE_THIS:
- case DEMANGLE_COMPONENT_CONST_THIS:
- case DEMANGLE_COMPONENT_REFERENCE_THIS:
- case DEMANGLE_COMPONENT_RVALUE_REFERENCE_THIS:
+ FNQUAL_COMPONENT_CASE:
break;
default:
break;
static void
d_print_array_type (struct d_print_info *dpi, int options,
- const struct demangle_component *dc,
+ struct demangle_component *dc,
struct d_print_mod *mods)
{
int need_space;
static void
d_print_expr_op (struct d_print_info *dpi, int options,
- const struct demangle_component *dc)
+ struct demangle_component *dc)
{
if (dc->type == DEMANGLE_COMPONENT_OPERATOR)
d_append_buffer (dpi, dc->u.s_operator.op->name,
static void
d_print_cast (struct d_print_info *dpi, int options,
- const struct demangle_component *dc)
+ struct demangle_component *dc)
+{
+ d_print_comp (dpi, options, d_left (dc));
+}
+
+/* Print a conversion operator. */
+
+static void
+d_print_conversion (struct d_print_info *dpi, int options,
+ struct demangle_component *dc)
{
struct d_print_template dpt;
- /* For a cast operator, we need the template parameters from
+ /* For a conversion operator, we need the template parameters from
the enclosing template in scope for processing the type. */
if (dpi->current_template != NULL)
{
di->n = mangled;
- /* We can not need more components than twice the number of chars in
+ /* We cannot need more components than twice the number of chars in
the mangled string. Most components correspond directly to
chars, but the ARGLIST types are exceptions. */
di->num_comps = 2 * len;
di->next_comp = 0;
- /* Similarly, we can not need more substitutions than there are
+ /* Similarly, we cannot need more substitutions than there are
chars in the mangled string. */
di->num_subs = len;
di->next_sub = 0;
- di->did_subs = 0;
di->last_name = NULL;
di->expansion = 0;
di->is_expression = 0;
di->is_conversion = 0;
+ di->recursion_level = 0;
}
/* Internal implementation for the demangler. If MANGLED is a g++ v3 ABI
type = DCT_TYPE;
}
+ di.unresolved_name_state = 1;
+
+ again:
cplus_demangle_init_info (mangled, options, strlen (mangled), &di);
+ /* PR 87675 - Check for a mangled string that is so long
+ that we do not have enough stack space to demangle it. */
+ if (((options & DMGL_NO_RECURSE_LIMIT) == 0)
+ /* This check is a bit arbitrary, since what we really want to do is to
+ compare the sizes of the di.comps and di.subs arrays against the
+ amount of stack space remaining. But there is no portable way to do
+ this, so instead we use the recursion limit as a guide to the maximum
+ size of the arrays. */
+ && (unsigned long) di.num_comps > DEMANGLE_RECURSION_LIMIT)
+ {
+ /* FIXME: We need a way to indicate that a stack limit has been reached. */
+ return 0;
+ }
+
{
#ifdef CP_DYNAMIC_ARRAYS
__extension__ struct demangle_component comps[di.num_comps];
if (((options & DMGL_PARAMS) != 0) && d_peek_char (&di) != '\0')
dc = NULL;
+ /* See discussion in d_unresolved_name. */
+ if (dc == NULL && di.unresolved_name_state == -1)
+ {
+ di.unresolved_name_state = 0;
+ goto again;
+ }
+
#ifdef CP_DEMANGLE_DEBUG
d_dump (dc, 0);
#endif