/* Demangler for g++ V3 ABI.
- Copyright (C) 2003-2017 Free Software Foundation, Inc.
+ Copyright (C) 2003-2018 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>.
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_GLOBAL_DESTRUCTORS:
case DEMANGLE_COMPONENT_NULLARY:
case DEMANGLE_COMPONENT_TRINARY_ARG2:
+ case DEMANGLE_COMPONENT_TPARM_OBJ:
if (left == NULL)
return NULL;
break;
{
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));
FNQUAL_COMPONENT_CASE:
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, *dcr;
-
dc = d_name (di);
- 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
really apply here; this happens when parsing a class
which is local to a function. */
if (dc->type == DEMANGLE_COMPONENT_LOCAL_NAME)
+ while (is_fnqual_component_type (d_right (dc)->type))
+ d_right (dc) = d_left (d_right (dc));
+ }
+ else
+ {
+ peek = d_peek_char (di);
+ if (peek != '\0' && peek != 'E')
{
- dcr = d_right (dc);
- while (is_fnqual_component_type (dcr->type))
- dcr = d_left (dcr);
- dc->u.s_binary.right = dcr;
- }
+ struct demangle_component *ftype;
- return 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;
+ }
}
-
- peek = d_peek_char (di);
- if (dc == NULL || peek == '\0' || peek == 'E')
- return dc;
- dcr = d_bare_function_type (di, has_return_type (dc));
- return d_make_comp (di, DEMANGLE_COMPONENT_TYPED_NAME, dc, dcr);
}
+
+ return dc;
}
/* <tagged-name> ::= <name> B <source-name> */
::= TT <type>
::= TI <type>
::= TS <type>
+ ::= TA <template-arg>
::= GV <(object) name>
::= T <call-offset> <(base) encoding>
::= Tc <call-offset> <call-offset> <(base) encoding>
return d_make_comp (di, DEMANGLE_COMPONENT_TLS_WRAPPER,
d_name (di), 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), NULL);
case 'R':
{
{
/* Brace-enclosed initializer list, untyped or typed. */
struct demangle_component *type = NULL;
+ d_advance (di, 2);
if (peek == 't')
type = cplus_demangle_type (di);
if (!d_peek_next_char (di))
return NULL;
- d_advance (di, 2);
return d_make_comp (di, DEMANGLE_COMPONENT_INITIALIZER_LIST,
type, d_exprlist (di, 'E'));
}
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:
{
return NULL;
function = d_encoding (di, 0);
+ if (!function)
+ return NULL;
if (! d_check_char (di, 'E'))
return NULL;
}
name = d_name (di);
+
if (name
- /* Lambdas and unnamed types have internal discriminators. */
+ /* Lambdas and unnamed types have internal discriminators
+ and are not functions. */
&& name->type != DEMANGLE_COMPONENT_LAMBDA
- && name->type != DEMANGLE_COMPONENT_UNNAMED_TYPE
- /* Otherwise read and ignore an optional discriminator. */
- && ! d_discriminator (di))
- return NULL;
+ && 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);
}
+ /* 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);
}
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:
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;
- if (local_name == NULL)
+ typed_name = d_right (typed_name);
+ if (typed_name->type == DEMANGLE_COMPONENT_DEFAULT_ARG)
+ typed_name = typed_name->u.s_unary_num.sub;
+ if (typed_name == NULL)
{
d_print_error (dpi);
return;
}
- while (is_fnqual_component_type (local_name->type))
+ while (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 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)
}
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);
return;
projects / thirdparty / gcc.git / blobdiff