mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-11-23 18:14:13 +08:00
fd67aa1129
Adds two new external authors to etc/update-copyright.py to cover bfd/ax_tls.m4, and adds gprofng to dirs handled automatically, then updates copyright messages as follows: 1) Update cgen/utils.scm emitted copyrights. 2) Run "etc/update-copyright.py --this-year" with an extra external author I haven't committed, 'Kalray SA.', to cover gas testsuite files (which should have their copyright message removed). 3) Build with --enable-maintainer-mode --enable-cgen-maint=yes. 4) Check out */po/*.pot which we don't update frequently.
1051 lines
45 KiB
C
1051 lines
45 KiB
C
/* Interface between GCC C++ FE and GDB -*- c -*-
|
|
|
|
Copyright (C) 2014-2024 Free Software Foundation, Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
|
|
|
|
/* Push namespace NAME as the current binding level, to which
|
|
newly-introduced decls will be bound. An empty string identifies
|
|
the global namespace, whereas NULL identifies an anonymous
|
|
namespace. A namespace named NAME is created in the current scope,
|
|
if needed.
|
|
|
|
If the newly-created namespace is to be an inline namespace, see
|
|
make_namespace_inline. */
|
|
|
|
GCC_METHOD1 (int /* bool */, push_namespace,
|
|
const char *) /* Argument NAME. */
|
|
|
|
/* Push TYPE as the current binding level, making its members visible
|
|
for name lookup. The current scope before the call must be the
|
|
scope in which the class was declared. This should be used if the
|
|
definition of a class is already finished, but one wishes to define
|
|
a nested class, or to enter the scope of one of its member
|
|
functions. */
|
|
|
|
GCC_METHOD1 (int /* bool */, push_class,
|
|
gcc_type) /* Argument TYPE. */
|
|
|
|
/* Push FUNCTION_DECL as the current (empty) binding level (see
|
|
reactivate_decl). The current enclosing scope before the call must
|
|
be the scope in which the function was declared. */
|
|
|
|
GCC_METHOD1 (int /* bool */, push_function,
|
|
gcc_decl) /* Argument FUNCTION_DECL. */
|
|
|
|
/* Make DECL visible (again?) within SCOPE. When SCOPE is NULL, it
|
|
means the current scope; if it is not NULL, it must name a function
|
|
that is currently active, even if not at the top of the binding
|
|
chain.
|
|
|
|
This function can be used to make e.g. a global function or
|
|
variable visible in a namespace or local scope (overriding another
|
|
enclosing definition of the same name), but its most common
|
|
expected use of this primitive, that gives it its name, is to make
|
|
declarations visible again after reentering a function scope,
|
|
because when a function is entered with push_function, that does
|
|
NOT make any of the declarations nested in it visible for name
|
|
lookup.
|
|
|
|
There is a reason/excuse for that: unlike namespaces and classes,
|
|
G++ doesn't ever have to reenter function scopes, so its name
|
|
resolution infrastructure is not prepared to do that. But wait,
|
|
there is also a good use for this apparent limitation: a function
|
|
may contain multiple scopes (blocks), and the name may be bound to
|
|
different symbols in each of these scopes. With this interface, as
|
|
we reenter a function scope, we may choose which symbols to make
|
|
visible for the code snippet, or, if there could be template
|
|
functions in local scopes, for unresolved names in nested template
|
|
class default arguments, or in nested template function signatures.
|
|
|
|
As for making a local declaration visible for the code snippet,
|
|
there are two possibilities: a) introduce it upfront, while
|
|
entering the scope for the user expression (see the enter_scope
|
|
callback, called by g++ when encountering the push_user_expression
|
|
pragma), which might save some scope switching and reactivate_decl
|
|
(though this can't be helped if some declarations have to be
|
|
introduced and discarded, because of multiple definitions of the
|
|
same name in different scopes within a function: they have to be
|
|
defined in discriminator order); or b) introduce it when its name
|
|
is looked up, entering the scope, introducing the declaration,
|
|
leaving the scope, and then reactivating the declaration in its
|
|
local scope.
|
|
|
|
Here's some more detail on how reactivate_decl works. Say there's
|
|
a function foo whose body looks like this:
|
|
|
|
{
|
|
{
|
|
// point 1
|
|
class c {} o __attribute__ ((__used__)); // c , o
|
|
}
|
|
struct c {
|
|
void f() {
|
|
// point 2
|
|
}
|
|
} o __attribute__ ((__used__)); // c_0, o_0
|
|
{
|
|
class c {} p __attribute__ ((__used__)); // c_1, p
|
|
// point 3
|
|
o.f();
|
|
}
|
|
}
|
|
|
|
When we are about to define class c at point 1, we enter the
|
|
function foo scope, and since no symbols are visible at point 1, we
|
|
proceed to declare class c. We may then define the class right
|
|
away, or, if we leave the function scope, and we later wish to
|
|
define it, or to define object o, we can reenter the scope and just
|
|
use the previously-obtained gcc_decl to define the class, without
|
|
having to reactivate the declaration.
|
|
|
|
Now, if we are to set up the binding context for point 2, we have
|
|
to define c_0::f, and in order to do so, we have to declare and
|
|
define c_0. Before we can declare c_0, we MUST at least declare c.
|
|
|
|
As a general rule, before we can declare or define any local name
|
|
with a discriminator, we have to at least declare any other
|
|
occurrences of the same name in the same enclosing entity with
|
|
lower or absent discriminator.
|
|
|
|
So, we declare c, then we leave the function scope and reenter it
|
|
so as to declare c_0 (also with name "c", which is why we have to
|
|
leave and reenter the function scope, otherwise we would get an
|
|
error because of the duplicate definition; g++ will assign a
|
|
discriminator because it still remembers there was an earlier
|
|
declaration of c_0 within the function, it's just no longer in
|
|
scope), then we can define c_0, including its member function f.
|
|
|
|
Likewise, if we wish to define o_0, we have to define o first. If
|
|
we wish to declare (and maybe then define) c_1, we have to at least
|
|
declare (c and then) c_0 first.
|
|
|
|
Then, as we set up the binding context to compile a code snippet at
|
|
point 3, we may choose to activate c_1, o_0 and p upfront,
|
|
declaring and discarding c, c_0 and o, and then reentering the
|
|
funciton scope to declare c_1, o_0 and p; or we can wait for oracle
|
|
lookups of c, o or p. If c is looked up, and the debugger resolves
|
|
c in the scope to c_1, it is expected to enter the function scope
|
|
from the top level, declare c, leave it, reenter it, declare c_0,
|
|
leave it, reenter it, declare c_1, leave it, and then reactivate
|
|
c_1 in the function scope. If c_1 is needed as a complete type,
|
|
the definition may be given right after the declaration, or the
|
|
scope will have to be reentered in order to define the class.
|
|
|
|
. If the code snippet is at point 2, we don't need to (re)activate
|
|
any declaration: nothing from any local scope is visible. Just
|
|
entering the scope of the class containing member function f
|
|
reactivates the names of its members, including the class name
|
|
itself. */
|
|
|
|
GCC_METHOD2 (int /* bool */, reactivate_decl,
|
|
gcc_decl, /* Argument DECL. */
|
|
gcc_decl) /* Argument SCOPE. */
|
|
|
|
/* Pop the namespace last entered with push_namespace, or class last
|
|
entered with push_class, or function last entered with
|
|
push_function, restoring the binding level in effect before the
|
|
matching push_* call. */
|
|
|
|
GCC_METHOD0 (int /* bool */, pop_binding_level)
|
|
|
|
/* Return the NAMESPACE_DECL, TYPE_DECL or FUNCTION_DECL of the
|
|
binding level that would be popped by pop_scope. */
|
|
|
|
GCC_METHOD0 (gcc_decl, get_current_binding_level_decl)
|
|
|
|
/* Make the current binding level an inline namespace. It must be a
|
|
namespace to begin with. It is safe to call this more than once
|
|
for the same namespace, but after the first call, subsequent ones
|
|
will not return a success status. */
|
|
|
|
GCC_METHOD0 (int /* bool */, make_namespace_inline)
|
|
|
|
/* Add USED_NS to the namespaces used by the current binding level.
|
|
Use get_current_binding_level_decl to obtain USED_NS's
|
|
gcc_decl. */
|
|
|
|
GCC_METHOD1 (int /* bool */, add_using_namespace,
|
|
gcc_decl) /* Argument USED_NS. */
|
|
|
|
/* Introduce a namespace alias declaration, as in:
|
|
|
|
namespace foo = [... ::] bar;
|
|
|
|
After this call, namespace TARGET will be visible as ALIAS within
|
|
the current namespace. Get the declaration for TARGET by calling
|
|
get_current_binding_level_decl after pushing into it. */
|
|
|
|
GCC_METHOD2 (int /* bool */, add_namespace_alias,
|
|
const char *, /* Argument ALIAS. */
|
|
gcc_decl) /* Argument TARGET. */
|
|
|
|
/* Introduce a using declaration, as in:
|
|
|
|
using foo::bar;
|
|
|
|
The TARGET decl names the qualifying scope (foo:: above) and the
|
|
identifier (bar), but that does not mean that only TARGET will be
|
|
brought into the current scope: all bindings of TARGET's identifier
|
|
in the qualifying scope will be brought in.
|
|
|
|
FLAGS should specify GCC_CP_SYMBOL_USING. If the current scope is
|
|
a class scope, visibility flags must be supplied.
|
|
|
|
Even when TARGET is template dependent, we don't need to specify
|
|
whether or not it is a typename: the supplied declaration (that
|
|
could be a template-dependent type converted to declaration by
|
|
get_type_decl) indicates so. */
|
|
|
|
GCC_METHOD2 (int /* bool */, add_using_decl,
|
|
enum gcc_cp_symbol_kind, /* Argument FLAGS. */
|
|
gcc_decl) /* Argument TARGET. */
|
|
|
|
/* Create a new "decl" in GCC, and bind it in the current binding
|
|
level. A decl is a declaration, basically a kind of symbol.
|
|
|
|
NAME is the name of the new symbol. SYM_KIND is the kind of
|
|
symbol being requested. SYM_TYPE is the new symbol's C++ type;
|
|
except for labels, where this is not meaningful and should be
|
|
zero. If SUBSTITUTION_NAME is not NULL, then a reference to this
|
|
decl in the source will later be substituted with a dereference
|
|
of a variable of the given name. Otherwise, for symbols having
|
|
an address (e.g., functions), ADDRESS is the address. FILENAME
|
|
and LINE_NUMBER refer to the symbol's source location. If this
|
|
is not known, FILENAME can be NULL and LINE_NUMBER can be 0.
|
|
This function returns the new decl.
|
|
|
|
Use this function to register typedefs, functions and variables to
|
|
namespace and local binding levels, and typedefs, member functions
|
|
(static or not), and static data members to class binding levels.
|
|
Class members must have their access controls specified with
|
|
GCC_CP_ACCESS_* flags in SYM_KIND.
|
|
|
|
Note that, since access controls are disabled, we have no means to
|
|
express private, protected and public.
|
|
|
|
There are various flags that can be set in SYM_KIND to specify
|
|
additional semantics. Look for GCC_CP_FLAGs in the definition of
|
|
enum gcc_cp_symbol_kind in gcc-cp-interface.h.
|
|
|
|
In order to define member functions, pass GCC_CP_SYMBOL_FUNCTION in
|
|
SYM_KIND, and a function_type for static member functions or a
|
|
method type for non-static member functions, including constructors
|
|
and destructors. Use build_function_type to create a function
|
|
type; for a method type, start by creating a function type without
|
|
any compiler-introduced artificial arguments (the implicit this
|
|
pointer, and the __in_chrg added to constructors and destructors,
|
|
and __vtt_parm added to the former), and then use build_method_type
|
|
to create the method type out of the class type and the function
|
|
type.
|
|
|
|
For operator functions, set GCC_CP_FLAG_SPECIAL_FUNCTION in
|
|
SYM_KIND, in addition to any other applicable flags, and pass as
|
|
NAME a string starting with the two-character mangling for operator
|
|
name: "ps" for unary plus, "mL" for multiply and assign, *=; etc.
|
|
Use "cv" for type converstion operators (the target type portion
|
|
may be omitted, as it is taken from the return type in SYM_TYPE).
|
|
For operator"", use "li" followed by the identifier (the mangled
|
|
name mandates digits specifying the length of the identifier; if
|
|
present, they determine the end of the identifier, otherwise, the
|
|
identifier extents to the end of the string, so that "li3_Kme" and
|
|
"li_Km" are equivalent).
|
|
|
|
Constructors and destructors need special care, because for each
|
|
constructor and destructor there may be multiple clones defined
|
|
internally by the compiler. With build_decl, you can introduce the
|
|
base declaration of a constructor or a destructor, setting
|
|
GCC_CP_FLAG_SPECIAL_FUNCTION the flag and using names starting with
|
|
capital "C" or "D", respectively, followed by a digit (see below),
|
|
a blank, or NUL ('\0'). DO NOT supply an ADDRESS or a
|
|
SUBSTITUTION_NAME to build_decl, it would be meaningless (and
|
|
rejected) for the base declaration; use define_cdtor_clone to
|
|
introduce the address of each clone. For constructor templates,
|
|
declare the template with build_decl, and then, for each
|
|
specialization, introduce it with
|
|
build_function_template_specialization, and then define the
|
|
addresses of each of its clones with define_cdtor_clone.
|
|
|
|
NAMEs for GCC_CP_FLAG_SPECIAL_FUNCTION:
|
|
|
|
NAME meaning
|
|
C? constructor base declaration (? may be 1, 2, 4, blank or NUL)
|
|
D? destructor base declaration (? may be 0, 1, 2, 4, blank or NUL)
|
|
nw operator new
|
|
na operator new[]
|
|
dl operator delete
|
|
da operator delete[]
|
|
ps operator + (unary)
|
|
ng operator - (unary)
|
|
ad operator & (unary)
|
|
de operator * (unary)
|
|
co operator ~
|
|
pl operator +
|
|
mi operator -
|
|
ml operator *
|
|
dv operator /
|
|
rm operator %
|
|
an operator &
|
|
or operator |
|
|
eo operator ^
|
|
aS operator =
|
|
pL operator +=
|
|
mI operator -=
|
|
mL operator *=
|
|
dV operator /=
|
|
rM operator %=
|
|
aN operator &=
|
|
oR operator |=
|
|
eO operator ^=
|
|
ls operator <<
|
|
rs operator >>
|
|
lS operator <<=
|
|
rS operator >>=
|
|
eq operator ==
|
|
ne operator !=
|
|
lt operator <
|
|
gt operator >
|
|
le operator <=
|
|
ge operator >=
|
|
nt operator !
|
|
aa operator &&
|
|
oo operator ||
|
|
pp operator ++
|
|
mm operator --
|
|
cm operator ,
|
|
pm operator ->*
|
|
pt operator ->
|
|
cl operator ()
|
|
ix operator []
|
|
qu operator ?
|
|
cv operator <T> (conversion operator)
|
|
li<id> operator "" <id>
|
|
|
|
FIXME: How about attributes? */
|
|
|
|
GCC_METHOD7 (gcc_decl, build_decl,
|
|
const char *, /* Argument NAME. */
|
|
enum gcc_cp_symbol_kind, /* Argument SYM_KIND. */
|
|
gcc_type, /* Argument SYM_TYPE. */
|
|
const char *, /* Argument SUBSTITUTION_NAME. */
|
|
gcc_address, /* Argument ADDRESS. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Supply the ADDRESS of one of the multiple clones of constructor or
|
|
destructor CDTOR. The clone is specified by NAME, using the
|
|
following name mangling conventions:
|
|
|
|
C1 in-charge constructor
|
|
C2 not-in-charge constructor
|
|
C4 unified constructor
|
|
D0 deleting destructor
|
|
D1 in-charge destructor
|
|
D2 not-in-charge destructor
|
|
D4 unified destructor
|
|
|
|
The following information is not necessary to use the API.
|
|
|
|
C1 initializes an instance of the class (rather than of derived
|
|
classes), including virtual base classes, whereas C2 initializes a
|
|
sub-object (of the given class type) of an instance of some derived
|
|
class (or a full object that doesn't have any virtual base
|
|
classes).
|
|
|
|
D0 and D1 destruct an instance of the class, including virtual base
|
|
classes, but only the former calls operator delete to release the
|
|
object's storage at the end; D2 destructs a sub-object (of the
|
|
given class type) of an instance of a derived class (or a full
|
|
object that doesn't have any virtual base classes).
|
|
|
|
The [CD]4 manglings (and symbol definitions) are non-standard, but
|
|
GCC uses them in some cases: rather than assuming they are
|
|
in-charge or not-in-charge, they test the implicit argument that
|
|
the others ignore to tell how to behave. These are used instead of
|
|
cloning when we just can't use aliases. */
|
|
|
|
GCC_METHOD3 (gcc_decl, define_cdtor_clone,
|
|
const char *, /* Argument NAME. */
|
|
gcc_decl, /* Argument CDTOR. */
|
|
gcc_address) /* Argument ADDRESS. */
|
|
|
|
/* Return the type associated with the given declaration. This is
|
|
most useful to obtain the type associated with a forward-declared
|
|
class, because it is the gcc_type, rather than the gcc_decl, that
|
|
has to be used to build other types, but build_decl returns a
|
|
gcc_decl rather than a gcc_type. This call can in theory be used
|
|
to obtain the type from any other declaration; it is supposed to
|
|
return the same type that was supplied when the declaration was
|
|
created. */
|
|
|
|
GCC_METHOD1 (gcc_type, get_decl_type,
|
|
gcc_decl) /* Argument DECL. */
|
|
|
|
/* Return the declaration for a type. */
|
|
|
|
GCC_METHOD1 (gcc_decl, get_type_decl,
|
|
gcc_type) /* Argument TYPE. */
|
|
|
|
/* Declare DECL as a friend of the current class scope, if TYPE is
|
|
NULL, or of TYPE itself otherwise. DECL may be a function or a
|
|
class, be they template generics, template specializations or not
|
|
templates. TYPE must be a class type (not a template generic).
|
|
|
|
The add_friend call cannot introduce a declaration; even if the
|
|
friend is first declared as a friend in the source code, the
|
|
declaration belongs in the enclosing namespace, so it must be
|
|
introduced in that namespace, and the resulting declaration can
|
|
then be made a friend.
|
|
|
|
DECL cannot, however, be a member of a template class generic,
|
|
because we have no means to introduce their declarations. This
|
|
interface has no notion of definitions for template generics. As a
|
|
consequence, users of this interface must introduce each friend
|
|
template member specialization separately, i.e., instead of:
|
|
|
|
template <typename T> friend struct X<T>::M;
|
|
|
|
they must be declared as if they were:
|
|
|
|
friend struct X<onetype>::M;
|
|
friend struct X<anothertype>::M;
|
|
... for each specialization of X.
|
|
|
|
|
|
Specializations of a template can have each others' members as
|
|
friends:
|
|
|
|
template <typename T> class foo {
|
|
int f();
|
|
template <typename U> friend int foo<U>::f();
|
|
};
|
|
|
|
It wouldn't always be possible to define all specializations of a
|
|
template class before introducing the friend declarations in their
|
|
expanded, per-specialization form.
|
|
|
|
In order to simplify such friend declarations, and to enable
|
|
incremental friend declarations as template specializations are
|
|
introduced, add_friend can be called after the befriending class is
|
|
fully defined, passing it a non-NULL TYPE argument naming the
|
|
befriending class type. */
|
|
|
|
GCC_METHOD2 (int /* bool */, add_friend,
|
|
gcc_decl, /* Argument DECL. */
|
|
gcc_type) /* Argument TYPE. */
|
|
|
|
/* Return the type of a pointer to a given base type. */
|
|
|
|
GCC_METHOD1 (gcc_type, build_pointer_type,
|
|
gcc_type) /* Argument BASE_TYPE. */
|
|
|
|
/* Return the type of a reference to a given base type. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_reference_type,
|
|
gcc_type, /* Argument BASE_TYPE. */
|
|
enum gcc_cp_ref_qualifiers) /* Argument RQUALS. */
|
|
|
|
/* Create a new pointer-to-member type. MEMBER_TYPE is the data
|
|
member type, while CLASS_TYPE is the class type containing the data
|
|
member. For pointers to member functions, MEMBER_TYPE must be a
|
|
method type, and CLASS_TYPE must be specified even though it might
|
|
be possible to extract it from the method type. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_pointer_to_member_type,
|
|
gcc_type, /* Argument CLASS_TYPE. */
|
|
gcc_type) /* Argument MEMBER_TYPE. */
|
|
|
|
/* Start a template parameter list scope and enters it, so that
|
|
subsequent build_type_template_parameter and
|
|
build_value_template_parameter calls create template parameters in
|
|
the list. The list is closed by a build_decl call with
|
|
GCC_CP_SYMBOL_FUNCTION or GCC_CP_SYMBOL_CLASS, that, when the scope
|
|
is a template parameter list, declares a template function or a
|
|
template class with the then-closed parameter list. The scope in
|
|
which the new declaration is to be introduced by build_decl must be
|
|
entered before calling start_template_decl, and build_decl returns
|
|
to that scope, from the template parameter list scope, before
|
|
introducing the declaration. */
|
|
|
|
GCC_METHOD0 (int /* bool */, start_template_decl)
|
|
|
|
/* Build a typename template-parameter (e.g., the T in template
|
|
<typename T = X>). Either PACK_P should be nonzero, to indicate an
|
|
argument pack (the last argument in a variadic template argument
|
|
list, as in template <typename... T>), or DEFAULT_TYPE may be
|
|
non-NULL to set the default type argument (e.g. X) for the template
|
|
parameter. FILENAME and LINE_NUMBER may specify the source
|
|
location in which the template parameter was declared. */
|
|
|
|
GCC_METHOD5 (gcc_type, build_type_template_parameter,
|
|
const char *, /* Argument ID. */
|
|
int /* bool */, /* Argument PACK_P. */
|
|
gcc_type, /* Argument DEFAULT_TYPE. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Build a template template-parameter (e.g., the T in template
|
|
<template <[...]> class T = X>). DEFAULT_TEMPL may be non-NULL to
|
|
set the default type-template argument (e.g. X) for the template
|
|
template parameter. FILENAME and LINE_NUMBER may specify the
|
|
source location in which the template parameter was declared. */
|
|
|
|
GCC_METHOD5 (gcc_utempl, build_template_template_parameter,
|
|
const char *, /* Argument ID. */
|
|
int /* bool */, /* Argument PACK_P. */
|
|
gcc_utempl, /* Argument DEFAULT_TEMPL. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Build a value template-parameter (e.g., the V in template <typename
|
|
T, T V> or in template <int V = X>). DEFAULT_VALUE may be non-NULL
|
|
to set the default value argument for the template parameter (e.g.,
|
|
X). FILENAME and LINE_NUMBER may specify the source location in
|
|
which the template parameter was declared. */
|
|
|
|
GCC_METHOD5 (gcc_decl, build_value_template_parameter,
|
|
gcc_type, /* Argument TYPE. */
|
|
const char *, /* Argument ID. */
|
|
gcc_expr, /* Argument DEFAULT_VALUE. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Build a template-dependent typename (e.g., typename T::bar or
|
|
typename T::template bart<X>). ENCLOSING_TYPE should be the
|
|
template-dependent nested name specifier (e.g., T), ID should be
|
|
the name of the member of the ENCLOSING_TYPE (e.g., bar or bart),
|
|
and TARGS should be non-NULL and specify the template arguments
|
|
(e.g. <X>) iff ID is to name a class template.
|
|
|
|
In this and other calls, a template-dependent nested name specifier
|
|
may be a template class parameter (build_type_template_parameter),
|
|
a specialization (returned by build_dependent_type_template_id) of
|
|
a template template parameter (returned by
|
|
build_template_template_parameter) or a member type thereof
|
|
(returned by build_dependent_typename itself). */
|
|
|
|
GCC_METHOD3 (gcc_type, build_dependent_typename,
|
|
gcc_type, /* Argument ENCLOSING_TYPE. */
|
|
const char *, /* Argument ID. */
|
|
const struct gcc_cp_template_args *) /* Argument TARGS. */
|
|
|
|
/* Build a template-dependent class template (e.g., T::template bart).
|
|
ENCLOSING_TYPE should be the template-dependent nested name
|
|
specifier (e.g., T), ID should be the name of the class template
|
|
member of the ENCLOSING_TYPE (e.g., bart). */
|
|
|
|
GCC_METHOD2 (gcc_utempl, build_dependent_class_template,
|
|
gcc_type, /* Argument ENCLOSING_TYPE. */
|
|
const char *) /* Argument ID. */
|
|
|
|
/* Build a template-dependent type template-id (e.g., T<A>).
|
|
TEMPLATE_DECL should be a template template parameter (e.g., the T
|
|
in template <template <[...]> class T = X>), and TARGS should
|
|
specify the template arguments (e.g. <A>). */
|
|
|
|
GCC_METHOD2 (gcc_type, build_dependent_type_template_id,
|
|
gcc_utempl, /* Argument TEMPLATE_DECL. */
|
|
const struct gcc_cp_template_args *) /* Argument TARGS. */
|
|
|
|
/* Build a template-dependent expression (e.g., S::val or S::template
|
|
mtf<X>, or unqualified f or template tf<X>).
|
|
|
|
ENCLOSING_SCOPE should be a template-dependent nested name
|
|
specifier (e.g., T), a resolved namespace or class decl, or NULL
|
|
for unqualified names; ID should be the name of the member of the
|
|
ENCLOSING_SCOPE (e.g., val or mtf) or unqualified overloaded
|
|
function; and TARGS should list template arguments (e.g. <X>) when
|
|
mtf or tf are to name a template function, or be NULL otherwise.
|
|
|
|
Unqualified names and namespace- or class-qualified names can only
|
|
resolve to overloaded functions, to be used in contexts that
|
|
involve overload resolution that cannot be resolved because of
|
|
template-dependent argument or return types, such as call
|
|
expressions with template-dependent arguments, conversion
|
|
expressions to function types with template-dependent argument
|
|
types or the like. Other cases of unqualified or
|
|
non-template-dependent-qualified names should NOT use this
|
|
function, and use decl_expr to convert the appropriate function or
|
|
object declaration to an expression.
|
|
|
|
If ID is the name of a special member function, FLAGS should be
|
|
GCC_CP_SYMBOL_FUNCTION|GCC_CP_FLAG_SPECIAL_FUNCTION, and ID should
|
|
be one of the encodings for special member functions documented in
|
|
build_decl. Otherwise, FLAGS should be GCC_CP_SYMBOL_MASK, which
|
|
suggests the symbol kind is not known (though we know it is not a
|
|
type).
|
|
|
|
If ID denotes a conversion operator, CONV_TYPE should name the
|
|
target type of the conversion. Otherwise, CONV_TYPE must be
|
|
NULL. */
|
|
|
|
GCC_METHOD5 (gcc_expr, build_dependent_expr,
|
|
gcc_decl, /* Argument ENCLOSING_SCOPE. */
|
|
enum gcc_cp_symbol_kind, /* Argument FLAGS. */
|
|
const char *, /* Argument NAME. */
|
|
gcc_type, /* Argument CONV_TYPE. */
|
|
const struct gcc_cp_template_args *) /* Argument TARGS. */
|
|
|
|
/* Build a gcc_expr for the value VALUE in type TYPE. */
|
|
|
|
GCC_METHOD2 (gcc_expr, build_literal_expr,
|
|
gcc_type, /* Argument TYPE. */
|
|
unsigned long) /* Argument VALUE. */
|
|
|
|
/* Build a gcc_expr that denotes DECL, the declaration of a variable
|
|
or function in namespace scope, or of a static member variable or
|
|
function. Use QUALIFIED_P to build the operand of unary & so as to
|
|
compute a pointer-to-member, rather than a regular pointer. */
|
|
|
|
GCC_METHOD2 (gcc_expr, build_decl_expr,
|
|
gcc_decl, /* Argument DECL. */
|
|
int /* bool */) /* Argument QUALIFIED_P. */
|
|
|
|
/* Build a gcc_expr that denotes the unary operation UNARY_OP applied
|
|
to the gcc_expr OPERAND. For non-expr operands, see
|
|
unary_type_expr. Besides the UNARY_OP encodings used for operator
|
|
names, we support "pp_" for preincrement, and "mm_" for
|
|
predecrement, "nx" for noexcept, "tw" for throw, "tr" for rethrow
|
|
(pass NULL as the operand), "te" for typeid, "sz" for sizeof, "az"
|
|
for alignof, "dl" for delete, "gsdl" for ::delete, "da" for
|
|
delete[], "gsda" for ::delete[], "sp" for pack expansion, "sZ" for
|
|
sizeof...(function argument pack). */
|
|
|
|
GCC_METHOD2 (gcc_expr, build_unary_expr,
|
|
const char *, /* Argument UNARY_OP. */
|
|
gcc_expr) /* Argument OPERAND. */
|
|
|
|
/* Build a gcc_expr that denotes the binary operation BINARY_OP
|
|
applied to gcc_exprs OPERAND1 and OPERAND2. Besides the BINARY_OP
|
|
encodings used for operator names, we support "ds" for the operator
|
|
token ".*" and "dt" for the operator token ".". When using
|
|
operators that take a name as their second operand ("." and "->")
|
|
use decl_expr to convert the gcc_decl of the member name to a
|
|
gcc_expr, if the member name wasn't created with
|
|
e.g. build_dependent_expr. */
|
|
|
|
GCC_METHOD3 (gcc_expr, build_binary_expr,
|
|
const char *, /* Argument BINARY_OP. */
|
|
gcc_expr, /* Argument OPERAND1. */
|
|
gcc_expr) /* Argument OPERAND2. */
|
|
|
|
/* Build a gcc_expr that denotes the ternary operation TERNARY_OP
|
|
applied to gcc_exprs OPERAND1, OPERAND2 and OPERAND3. The only
|
|
supported TERNARY_OP is "qu", for the "?:" operator. */
|
|
|
|
GCC_METHOD4 (gcc_expr, build_ternary_expr,
|
|
const char *, /* Argument TERNARY_OP. */
|
|
gcc_expr, /* Argument OPERAND1. */
|
|
gcc_expr, /* Argument OPERAND2. */
|
|
gcc_expr) /* Argument OPERAND3. */
|
|
|
|
/* Build a gcc_expr that denotes the unary operation UNARY_OP applied
|
|
to the gcc_type OPERAND. Supported unary operations taking types
|
|
are "ti" for typeid, "st" for sizeof, "at" for alignof, and "sZ"
|
|
for sizeof...(template argument pack). */
|
|
|
|
GCC_METHOD2 (gcc_expr, build_unary_type_expr,
|
|
const char *, /* Argument UNARY_OP. */
|
|
gcc_type) /* Argument OPERAND. */
|
|
|
|
/* Build a gcc_expr that denotes the binary operation BINARY_OP
|
|
applied to gcc_type OPERAND1 and gcc_expr OPERAND2. Use this for
|
|
all kinds of (single-argument) type casts ("dc", "sc", "cc", "rc"
|
|
for dynamic, static, const and reinterpret casts, respectively;
|
|
"cv" for functional or C-style casts). */
|
|
|
|
GCC_METHOD3 (gcc_expr, build_cast_expr,
|
|
const char *, /* Argument BINARY_OP. */
|
|
gcc_type, /* Argument OPERAND1. */
|
|
gcc_expr) /* Argument OPERAND2. */
|
|
|
|
/* Build a gcc_expr that denotes the conversion of an expression list
|
|
VALUES to TYPE, with ("tl") or without ("cv") braces, or a braced
|
|
initializer list of unspecified type (e.g., a component of another
|
|
braced initializer list; pass "il" for CONV_OP, and NULL for
|
|
TYPE). */
|
|
|
|
GCC_METHOD3 (gcc_expr, build_expression_list_expr,
|
|
const char *, /* Argument CONV_OP. */
|
|
gcc_type, /* Argument TYPE. */
|
|
const struct gcc_cp_function_args *) /* Argument VALUES. */
|
|
|
|
/* Build a gcc_expr that denotes a new ("nw") or new[] ("na")
|
|
expression of TYPE, with or without a GLOBAL_NS qualifier (prefix
|
|
the NEW_OP with "gs"), with or without PLACEMENT, with or without
|
|
INITIALIZER. If it's not a placement new, PLACEMENT must be NULL
|
|
(rather than a zero-length placement arg list). If there's no
|
|
specified initializer, INITIALIZER must be NULL; a zero-length arg
|
|
list stands for a default initializer. */
|
|
|
|
GCC_METHOD4 (gcc_expr, build_new_expr,
|
|
const char *, /* Argument NEW_OP. */
|
|
const struct gcc_cp_function_args *, /* Argument PLACEMENT. */
|
|
gcc_type, /* Argument TYPE. */
|
|
const struct gcc_cp_function_args *) /* Argument INITIALIZER. */
|
|
|
|
/* Return a call expression that calls CALLABLE with arguments ARGS.
|
|
CALLABLE may be a function, a callable object, a pointer to
|
|
function, an unresolved expression, an unresolved overload set, an
|
|
object expression combined with a member function overload set or a
|
|
pointer-to-member. If QUALIFIED_P, CALLABLE will be interpreted as
|
|
a qualified name, preventing virtual function dispatch. */
|
|
|
|
GCC_METHOD3 (gcc_expr, build_call_expr,
|
|
gcc_expr, /* Argument CALLABLE. */
|
|
int /* bool */, /* Argument QUALIFIED_P. */
|
|
const struct gcc_cp_function_args *) /* Argument ARGS. */
|
|
|
|
/* Return the type of the gcc_expr OPERAND.
|
|
Use this for decltype.
|
|
For decltype (auto), pass a NULL OPERAND.
|
|
|
|
Note: for template-dependent expressions, the result is NULL,
|
|
because the type is only computed when template argument
|
|
substitution is performed. */
|
|
|
|
GCC_METHOD1 (gcc_type, get_expr_type,
|
|
gcc_expr) /* Argument OPERAND. */
|
|
|
|
/* Introduce a specialization of a template function.
|
|
|
|
TEMPLATE_DECL is the template function, and TARGS are the arguments
|
|
for the specialization. ADDRESS is the address of the
|
|
specialization. FILENAME and LINE_NUMBER specify the source
|
|
location associated with the template function specialization. */
|
|
|
|
GCC_METHOD5 (gcc_decl, build_function_template_specialization,
|
|
gcc_decl, /* Argument TEMPLATE_DECL. */
|
|
const struct gcc_cp_template_args *, /* Argument TARGS. */
|
|
gcc_address, /* Argument ADDRESS. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Specialize a template class as an incomplete type. A definition
|
|
can be supplied later, with start_class_type.
|
|
|
|
TEMPLATE_DECL is the template class, and TARGS are the arguments
|
|
for the specialization. FILENAME and LINE_NUMBER specify the
|
|
source location associated with the template class
|
|
specialization. */
|
|
|
|
GCC_METHOD4 (gcc_decl, build_class_template_specialization,
|
|
gcc_decl, /* Argument TEMPLATE_DECL. */
|
|
const struct gcc_cp_template_args *, /* Argument TARGS. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Start defining a 'class', 'struct' or 'union' type, entering its
|
|
own binding level. Initially it has no fields.
|
|
|
|
TYPEDECL is the forward-declaration of the type, returned by
|
|
build_decl. BASE_CLASSES indicate the base classes of class NAME.
|
|
FILENAME and LINE_NUMBER specify the source location associated
|
|
with the class definition, should they be different from those of
|
|
the forward declaration. */
|
|
|
|
GCC_METHOD4 (gcc_type, start_class_type,
|
|
gcc_decl, /* Argument TYPEDECL. */
|
|
const struct gcc_vbase_array *,/* Argument BASE_CLASSES. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Create a new closure class type, record it as the
|
|
DISCRIMINATOR-numbered closure type in the current scope (or
|
|
associated with EXTRA_SCOPE, if non-NULL), and enter the closure
|
|
type's own binding level. This primitive would sort of combine
|
|
build_decl and start_class_type, if they could be used to introduce
|
|
a closure type. Initially it has no fields.
|
|
|
|
FILENAME and LINE_NUMBER specify the source location associated
|
|
with the class. EXTRA_SCOPE, if non-NULL, must be a PARM_DECL of
|
|
the current function, or a FIELD_DECL of the current class. If it
|
|
is NULL, the current scope must be a function. */
|
|
|
|
GCC_METHOD5 (gcc_type, start_closure_class_type,
|
|
int, /* Argument DISCRIMINATOR. */
|
|
gcc_decl, /* Argument EXTRA_SCOPE. */
|
|
enum gcc_cp_symbol_kind, /* Argument FLAGS. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Add a non-static data member to the most-recently-started
|
|
unfinished struct or union type. FIELD_NAME is the field's name.
|
|
FIELD_TYPE is the type of the field. BITSIZE and BITPOS indicate
|
|
where in the struct the field occurs. */
|
|
|
|
GCC_METHOD5 (gcc_decl, build_field,
|
|
const char *, /* Argument FIELD_NAME. */
|
|
gcc_type, /* Argument FIELD_TYPE. */
|
|
enum gcc_cp_symbol_kind, /* Argument FIELD_FLAGS. */
|
|
unsigned long, /* Argument BITSIZE. */
|
|
unsigned long) /* Argument BITPOS. */
|
|
|
|
/* After all the fields have been added to a struct, class or union,
|
|
the struct or union type must be "finished". This does some final
|
|
cleanups in GCC, and pops to the binding level that was in effect
|
|
before the matching start_class_type or
|
|
start_closure_class_type. */
|
|
|
|
GCC_METHOD1 (int /* bool */, finish_class_type,
|
|
unsigned long) /* Argument SIZE_IN_BYTES. */
|
|
|
|
/* Create a new 'enum' type, and record it in the current binding
|
|
level. The new type initially has no associated constants.
|
|
|
|
NAME is the enum name. FILENAME and LINE_NUMBER specify its source
|
|
location. */
|
|
|
|
GCC_METHOD5 (gcc_type, start_enum_type,
|
|
const char *, /* Argument NAME. */
|
|
gcc_type, /* Argument UNDERLYING_INT_TYPE. */
|
|
enum gcc_cp_symbol_kind, /* Argument FLAGS. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Add a new constant to an enum type. NAME is the constant's name
|
|
and VALUE is its value. Returns a gcc_decl for the constant. */
|
|
|
|
GCC_METHOD3 (gcc_decl, build_enum_constant,
|
|
gcc_type, /* Argument ENUM_TYPE. */
|
|
const char *, /* Argument NAME. */
|
|
unsigned long) /* Argument VALUE. */
|
|
|
|
/* After all the constants have been added to an enum, the type must
|
|
be "finished". This does some final cleanups in GCC. */
|
|
|
|
GCC_METHOD1 (int /* bool */, finish_enum_type,
|
|
gcc_type) /* Argument ENUM_TYPE. */
|
|
|
|
/* Create a new function type. RETURN_TYPE is the type returned by
|
|
the function, and ARGUMENT_TYPES is a vector, of length NARGS, of
|
|
the argument types. IS_VARARGS is true if the function is
|
|
varargs. */
|
|
|
|
GCC_METHOD3 (gcc_type, build_function_type,
|
|
gcc_type, /* Argument RETURN_TYPE. */
|
|
const struct gcc_type_array *,/* Argument ARGUMENT_TYPES. */
|
|
int /* bool */) /* Argument IS_VARARGS. */
|
|
|
|
/* Create a variant of a function type with an exception
|
|
specification. FUNCTION_TYPE is a function or method type.
|
|
EXCEPT_TYPES is an array with the list of exception types. Zero as
|
|
the array length implies throw() AKA noexcept(true); NULL as the
|
|
pointer to gcc_type_array implies noexcept(false), which is almost
|
|
equivalent (but distinguishable by the compiler) to an unspecified
|
|
exception list. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_exception_spec_variant,
|
|
gcc_type, /* Argument FUNCTION_TYPE. */
|
|
const struct gcc_type_array *)/* Argument EXCEPT_TYPES. */
|
|
|
|
/* Create a new non-static member function type. FUNC_TYPE is the
|
|
method prototype, without the implicit THIS pointer, added as a
|
|
pointer to the QUALS-qualified CLASS_TYPE. If CLASS_TYPE is NULL,
|
|
this creates a cv-qualified (member) function type not associated
|
|
with any specific class, as needed to support "typedef void f(int)
|
|
const;", which can later be used to declare member functions and
|
|
pointers to member functions. */
|
|
|
|
GCC_METHOD4 (gcc_type, build_method_type,
|
|
gcc_type, /* Argument CLASS_TYPE. */
|
|
gcc_type, /* Argument FUNC_TYPE. */
|
|
enum gcc_cp_qualifiers, /* Argument QUALS. */
|
|
enum gcc_cp_ref_qualifiers) /* Argument RQUALS. */
|
|
|
|
/* Return a declaration for the (INDEX - 1)th argument of
|
|
FUNCTION_DECL, i.e., for the first argument, use zero as the index.
|
|
If FUNCTION_DECL is a non-static member function, use -1 to get the
|
|
implicit THIS parameter. */
|
|
|
|
GCC_METHOD2 (gcc_decl, get_function_parameter_decl,
|
|
gcc_decl, /* Argument FUNCTION_DECL. */
|
|
int) /* Argument INDEX. */
|
|
|
|
/* Return a lambda expr that constructs an instance of CLOSURE_TYPE.
|
|
Only lambda exprs without any captures can be correctly created
|
|
through these mechanisms; that's all we need to support lambdas
|
|
expressions in default parameters, the only kind that may have to
|
|
be introduced through this interface. */
|
|
|
|
GCC_METHOD1 (gcc_expr, build_lambda_expr,
|
|
gcc_type) /* Argument CLOSURE_TYPE. */
|
|
|
|
/* Return an integer type with the given properties. If BUILTIN_NAME
|
|
is non-NULL, it must name a builtin integral type with the given
|
|
signedness and size, and that is the type that will be returned. */
|
|
|
|
GCC_METHOD3 (gcc_type, get_int_type,
|
|
int /* bool */, /* Argument IS_UNSIGNED. */
|
|
unsigned long, /* Argument SIZE_IN_BYTES. */
|
|
const char *) /* Argument BUILTIN_NAME. */
|
|
|
|
/* Return the 'char' type, a distinct type from both 'signed char' and
|
|
'unsigned char' returned by int_type. */
|
|
|
|
GCC_METHOD0 (gcc_type, get_char_type)
|
|
|
|
/* Return a floating point type with the given properties. If BUILTIN_NAME
|
|
is non-NULL, it must name a builtin integral type with the given
|
|
signedness and size, and that is the type that will be returned. */
|
|
|
|
GCC_METHOD2 (gcc_type, get_float_type,
|
|
unsigned long, /* Argument SIZE_IN_BYTES. */
|
|
const char *) /* Argument BUILTIN_NAME. */
|
|
|
|
/* Return the 'void' type. */
|
|
|
|
GCC_METHOD0 (gcc_type, get_void_type)
|
|
|
|
/* Return the 'bool' type. */
|
|
|
|
GCC_METHOD0 (gcc_type, get_bool_type)
|
|
|
|
/* Return the std::nullptr_t type. */
|
|
|
|
GCC_METHOD0 (gcc_type, get_nullptr_type)
|
|
|
|
/* Return the nullptr constant. */
|
|
|
|
GCC_METHOD0 (gcc_expr, get_nullptr_constant)
|
|
|
|
/* Create a new array type. If NUM_ELEMENTS is -1, then the array
|
|
is assumed to have an unknown length. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_array_type,
|
|
gcc_type, /* Argument ELEMENT_TYPE. */
|
|
int) /* Argument NUM_ELEMENTS. */
|
|
|
|
/* Create a new array type. NUM_ELEMENTS is a template-dependent
|
|
expression. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_dependent_array_type,
|
|
gcc_type, /* Argument ELEMENT_TYPE. */
|
|
gcc_expr) /* Argument NUM_ELEMENTS. */
|
|
|
|
/* Create a new variably-sized array type. UPPER_BOUND_NAME is the
|
|
name of a local variable that holds the upper bound of the array;
|
|
it is one less than the array size. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_vla_array_type,
|
|
gcc_type, /* Argument ELEMENT_TYPE. */
|
|
const char *) /* Argument UPPER_BOUND_NAME. */
|
|
|
|
/* Return a qualified variant of a given base type. QUALIFIERS says
|
|
which qualifiers to use; it is composed of or'd together
|
|
constants from 'enum gcc_cp_qualifiers'. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_qualified_type,
|
|
gcc_type, /* Argument UNQUALIFIED_TYPE. */
|
|
enum gcc_cp_qualifiers) /* Argument QUALIFIERS. */
|
|
|
|
/* Build a complex type given its element type. */
|
|
|
|
GCC_METHOD1 (gcc_type, build_complex_type,
|
|
gcc_type) /* Argument ELEMENT_TYPE. */
|
|
|
|
/* Build a vector type given its element type and number of
|
|
elements. */
|
|
|
|
GCC_METHOD2 (gcc_type, build_vector_type,
|
|
gcc_type, /* Argument ELEMENT_TYPE. */
|
|
int) /* Argument NUM_ELEMENTS. */
|
|
|
|
/* Build a constant. NAME is the constant's name and VALUE is its
|
|
value. FILENAME and LINE_NUMBER refer to the type's source
|
|
location. If this is not known, FILENAME can be NULL and
|
|
LINE_NUMBER can be 0. */
|
|
|
|
GCC_METHOD5 (int /* bool */, build_constant,
|
|
gcc_type, /* Argument TYPE. */
|
|
const char *, /* Argument NAME. */
|
|
unsigned long, /* Argument VALUE. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
/* Emit an error and return an error type object. */
|
|
|
|
GCC_METHOD1 (gcc_type, error,
|
|
const char *) /* Argument MESSAGE. */
|
|
|
|
/* Declare a static_assert with the given CONDITION and ERRORMSG at
|
|
FILENAME:LINE_NUMBER. */
|
|
|
|
GCC_METHOD4 (int /* bool */, add_static_assert,
|
|
gcc_expr, /* Argument CONDITION. */
|
|
const char *, /* Argument ERRORMSG. */
|
|
const char *, /* Argument FILENAME. */
|
|
unsigned int) /* Argument LINE_NUMBER. */
|
|
|
|
#if 0
|
|
|
|
/* FIXME: We don't want to expose the internal implementation detail
|
|
that default parms are stored in function types, and it's not clear
|
|
how this or other approaches would interact with the type sharing
|
|
of e.g. ctor clones, so we're leaving this out, since default args
|
|
are not even present in debug information anyway. Besides, the set
|
|
of default args for a function may grow within its scope, and vary
|
|
independently in other scopes. */
|
|
|
|
/* Create a modified version of a function type that has default
|
|
values for some of its arguments. The returned type should ONLY be
|
|
used to define functions or methods, never to declare parameters,
|
|
variables, types or the like.
|
|
|
|
DEFAULTS must have at most as many N_ELEMENTS as there are
|
|
arguments without default values in FUNCTION_TYPE. Say, if
|
|
FUNCTION_TYPE has an argument list such as (T1, T2, T3, T4 = V0)
|
|
and DEFAULTS has 2 elements (V1, V2), the returned type will have
|
|
the following argument list: (T1, T2 = V1, T3 = V2, T4 = V0).
|
|
|
|
Any NULL expressions in DEFAULTS will be marked as deferred, and
|
|
they should be filled in with set_deferred_function_default_args. */
|
|
|
|
GCC_METHOD2 (gcc_type, add_function_default_args,
|
|
gcc_type, /* Argument FUNCTION_TYPE. */
|
|
const struct gcc_cp_function_args *) /* Argument DEFAULTS. */
|
|
|
|
/* Fill in the first deferred default args in FUNCTION_DECL with the
|
|
expressions given in DEFAULTS. This can be used when the
|
|
declaration of a parameter is needed to create a default
|
|
expression, such as taking the size of an earlier parameter, or
|
|
building a lambda expression in the parameter's context. */
|
|
|
|
GCC_METHOD2 (int /* bool */, set_deferred_function_default_args,
|
|
gcc_decl, /* Argument FUNCTION_DECL. */
|
|
const struct gcc_cp_function_args *) /* Argument DEFAULTS. */
|
|
|
|
#endif
|
|
|
|
|
|
/* When you add entry points, add them at the end, so that the new API
|
|
version remains compatible with the old version.
|
|
|
|
The following conventions have been observed as to naming entry points:
|
|
|
|
- build_* creates (and maybe records) something and returns it;
|
|
- add_* creates and records something, but doesn't return it;
|
|
- get_* obtains something without creating it;
|
|
- start_* marks the beginning of a compound (type, list, ...);
|
|
- finish_* completes the compound when needed.
|
|
|
|
Entry points that return an int (bool) and don't have a return value
|
|
specification return nonzero (true) on success and zero (false) on
|
|
failure. This is in line with libcc1's conventions of returning a
|
|
zero-initialized value in case of e.g. a transport error. */
|