#include "config.h"
#include "system.h"
#include "tree.h"
#include "rtl.h"
#include "expr.h"
#ifdef OBJCPLUS
#include "cp-tree.h"
#include "lex.h"
#else
#include "c-tree.h"
#endif
#include "ggc.h"
#include "c-common.h"
#include "flags.h"
#include "objc-act.h"
#include "input.h"
#include "except.h"
#include "function.h"
#include "output.h"
#include "toplev.h"
#include "varray.h"
#include "debug.h"
#include "target.h"
#include "diagnostic.h"
#define OBJC_VOID_AT_END build_tree_list (NULL_TREE, void_type_node)
#include "genindex.h"
#ifdef OBJCPLUS
#define OBJCP_REMAP_FUNCTIONS
#include "objcp-decl.h"
#endif
#ifdef ENABLE_DMP_TREE
#include "dmp-tree.h"
extern int c_dump_tree_p PARAMS ((FILE *, const char *, tree, int));
extern int objc_dump_tree_p PARAMS ((FILE *, const char *, tree, int));
extern lang_dump_tree_p_t objc_prev_lang_dump_tree_p;
#endif
#ifndef OBJC_GEN_METHOD_LABEL
#define OBJC_GEN_METHOD_LABEL(BUF, IS_INST, CLASS_NAME, CAT_NAME, SEL_NAME, NUM) \
do { \
char *temp; \
sprintf ((BUF), "_%s_%s_%s_%s", \
((IS_INST) ? "i" : "c"), \
(CLASS_NAME), \
((CAT_NAME)? (CAT_NAME) : ""), \
(SEL_NAME)); \
for (temp = (BUF); *temp; temp++) \
if (*temp == ':') *temp = '_'; \
} while (0)
#endif
#ifndef OBJC_FORWARDING_STACK_OFFSET
#define OBJC_FORWARDING_STACK_OFFSET 0
#endif
#ifndef OBJC_FORWARDING_MIN_OFFSET
#define OBJC_FORWARDING_MIN_OFFSET 0
#endif
#include "obstack.h"
static struct obstack util_obstack;
char *util_firstobj;
#define OBJC_VERSION (flag_next_runtime ? 5 : 8)
#define PROTOCOL_VERSION 2
#define OBJC_ENCODE_INLINE_DEFS 0
#define OBJC_ENCODE_DONT_INLINE_DEFS 1
static void init_objc PARAMS ((void));
static void finish_objc PARAMS ((void));
static void synth_module_prologue PARAMS ((void));
static tree build_constructor PARAMS ((tree, tree));
static rtx build_module_descriptor PARAMS ((void));
static tree init_module_descriptor PARAMS ((tree));
static tree build_objc_method_call PARAMS ((int, tree, tree,
tree, tree));
static void generate_strings PARAMS ((void));
static tree get_proto_encoding PARAMS ((tree));
static void build_selector_translation_table PARAMS ((void));
static tree objc_add_static_instance PARAMS ((tree, tree));
static void build_objc_exception_stuff PARAMS ((void));
static tree objc_declare_variable PARAMS ((enum rid, tree,
tree, tree));
static tree objc_enter_block PARAMS ((void));
static tree objc_exit_block PARAMS ((void));
static void objc_build_try_enter_fragment PARAMS ((void));
static void objc_build_try_exit_fragment PARAMS ((void));
static void objc_build_extract_fragment PARAMS ((void));
static tree objc_build_extract_expr PARAMS ((void));
static tree build_ivar_template PARAMS ((void));
static tree build_method_template PARAMS ((void));
static tree build_private_template PARAMS ((tree));
static void build_class_template PARAMS ((void));
static void build_selector_template PARAMS ((void));
static void build_category_template PARAMS ((void));
static tree lookup_method_in_hash_lists PARAMS ((tree));
static void build_super_template PARAMS ((void));
static tree build_category_initializer PARAMS ((tree, tree, tree,
tree, tree, tree));
static tree build_protocol_initializer PARAMS ((tree, tree, tree,
tree, tree));
static void synth_forward_declarations PARAMS ((void));
static int ivar_list_length PARAMS ((tree));
static void generate_ivar_lists PARAMS ((void));
static void generate_dispatch_tables PARAMS ((void));
static void generate_shared_structures PARAMS ((void));
static tree generate_protocol_list PARAMS ((tree));
static void generate_forward_declaration_to_string_table PARAMS ((void));
static void build_protocol_reference PARAMS ((tree));
static tree build_keyword_selector PARAMS ((tree));
static tree synth_id_with_class_suffix PARAMS ((const char *, tree));
static void generate_static_references PARAMS ((void));
static int check_methods_accessible PARAMS ((tree, tree,
int));
static void encode_aggregate_within PARAMS ((tree, int, int,
int, int));
static const char *objc_demangle PARAMS ((const char *));
static void objc_expand_function_end PARAMS ((void));
hash *nst_method_hash_list = 0;
hash *cls_method_hash_list = 0;
static size_t hash_func PARAMS ((tree));
static void hash_init PARAMS ((void));
static void hash_enter PARAMS ((hash *, tree));
static hash hash_lookup PARAMS ((hash *, tree));
static void hash_add_attr PARAMS ((hash, tree));
static tree lookup_method PARAMS ((tree, tree));
static tree lookup_instance_method_static PARAMS ((tree, tree));
static tree lookup_class_method_static PARAMS ((tree, tree));
static tree add_class PARAMS ((tree, tree));
static void add_category PARAMS ((tree, tree));
enum string_section
{
class_names,
meth_var_names,
meth_var_types
};
static tree add_objc_string PARAMS ((tree,
enum string_section));
static tree get_objc_string_decl PARAMS ((tree,
enum string_section));
static tree build_objc_string_decl PARAMS ((enum string_section));
static tree build_selector_reference_decl PARAMS ((void));
static tree add_protocol PARAMS ((tree));
static tree lookup_protocol PARAMS ((tree));
static void check_protocol_recursively PARAMS ((tree, tree));
static tree lookup_and_install_protocols PARAMS ((tree));
static void encode_type_qualifiers PARAMS ((tree));
static void encode_pointer PARAMS ((tree, int, int));
static void encode_array PARAMS ((tree, int, int));
static void encode_aggregate PARAMS ((tree, int, int));
static void encode_bitfield PARAMS ((int));
static void encode_type PARAMS ((tree, int, int));
static void encode_field_decl PARAMS ((tree, int, int));
static void really_start_method PARAMS ((tree, tree));
static int comp_method_with_proto PARAMS ((tree, tree));
static int comp_proto_with_proto PARAMS ((tree, tree));
static tree get_arg_type_list PARAMS ((tree, int, int));
static tree expr_last PARAMS ((tree));
static void synth_self_and_ucmd_args PARAMS ((void));
static void warn_with_method PARAMS ((const char *, int, tree));
static void error_with_ivar PARAMS ((const char *, tree, tree));
static char *gen_method_decl PARAMS ((tree, char *));
static char *gen_declaration PARAMS ((tree, char *));
static void gen_declaration_1 PARAMS ((tree, char *));
static char *gen_declarator PARAMS ((tree, char *,
const char *));
static int is_complex_decl PARAMS ((tree));
static void adorn_decl PARAMS ((tree, char *));
static void dump_interface PARAMS ((FILE *, tree));
static tree define_decl PARAMS ((tree, tree));
static tree lookup_method_in_protocol_list PARAMS ((tree, tree, int));
static tree lookup_protocol_in_reflist PARAMS ((tree, tree));
static tree create_builtin_decl PARAMS ((enum tree_code,
tree, const char *));
static void setup_string_decl PARAMS ((void));
static int check_string_class_template PARAMS ((void));
static tree my_build_string PARAMS ((int, const char *));
static void build_objc_symtab_template PARAMS ((void));
static tree init_def_list PARAMS ((tree));
static tree init_objc_symtab PARAMS ((tree));
static tree build_metadata_decl PARAMS ((const char *, tree));
static void forward_declare_categories PARAMS ((void));
static void generate_objc_symtab_decl PARAMS ((void));
static tree build_selector PARAMS ((tree));
static tree build_typed_selector_reference PARAMS ((tree, tree));
static tree build_selector_reference PARAMS ((tree));
static tree build_class_reference_decl PARAMS ((void));
static void add_class_reference PARAMS ((tree));
static tree build_protocol_template PARAMS ((void));
static tree build_descriptor_table_initializer PARAMS ((tree, tree));
static tree build_method_prototype_list_template PARAMS ((tree, int));
static tree build_method_prototype_template PARAMS ((void));
static tree encode_method_prototype PARAMS ((tree, tree));
static tree generate_descriptor_table PARAMS ((tree, const char *,
int, tree, tree));
static void generate_method_descriptors PARAMS ((tree));
static tree build_tmp_function_decl PARAMS ((void));
static void hack_method_prototype PARAMS ((tree, tree));
static void generate_protocol_references PARAMS ((tree));
static void generate_protocols PARAMS ((void));
static void check_ivars PARAMS ((tree, tree));
static tree build_ivar_list_template PARAMS ((tree, int));
static tree build_method_list_template PARAMS ((tree, int));
static tree build_ivar_list_initializer PARAMS ((tree, tree));
static tree generate_ivars_list PARAMS ((tree, const char *,
int, tree));
static tree build_dispatch_table_initializer PARAMS ((tree, tree));
static tree generate_dispatch_table PARAMS ((tree, const char *,
int, tree));
static tree build_shared_structure_initializer PARAMS ((tree, tree, tree, tree,
tree, int, tree, tree,
tree));
static void generate_category PARAMS ((tree));
static int is_objc_type_qualifier PARAMS ((tree));
static tree adjust_type_for_id_default PARAMS ((tree));
static tree check_duplicates PARAMS ((hash));
static tree receiver_is_class_object PARAMS ((tree, int, int));
static int check_methods PARAMS ((tree, tree, int));
static int conforms_to_protocol PARAMS ((tree, tree));
static void check_protocol PARAMS ((tree, const char *,
const char *));
static void check_protocols PARAMS ((tree, const char *,
const char *));
static void gen_declspecs PARAMS ((tree, char *, int));
static void generate_classref_translation_entry PARAMS ((tree));
static void handle_class_ref PARAMS ((tree));
static void generate_struct_by_value_array PARAMS ((void))
ATTRIBUTE_NORETURN;
static void encode_complete_bitfield PARAMS ((int, tree, int));
#define TYPE_ID "id"
#define TAG_OBJECT "objc_object"
#define TAG_CLASS "objc_class"
#define TAG_SUPER "objc_super"
#define TAG_SELECTOR "objc_selector"
#define UTAG_CLASS "_objc_class"
#define UTAG_IVAR "_objc_ivar"
#define UTAG_IVAR_LIST "_objc_ivar_list"
#define UTAG_METHOD "_objc_method"
#define UTAG_METHOD_LIST "_objc_method_list"
#define UTAG_CATEGORY "_objc_category"
#define UTAG_MODULE "_objc_module"
#define UTAG_SYMTAB "_objc_symtab"
#define UTAG_SUPER "_objc_super"
#define UTAG_SELECTOR "_objc_selector"
#define UTAG_PROTOCOL "_objc_protocol"
#define UTAG_METHOD_PROTOTYPE "_objc_method_prototype"
#define UTAG_METHOD_PROTOTYPE_LIST "_objc__method_prototype_list"
#define STRING_OBJECT_GLOBAL_FORMAT "_%sClassReference"
#define PROTOCOL_OBJECT_CLASS_NAME "Protocol"
static const char *TAG_GETCLASS;
static const char *TAG_GETMETACLASS;
static const char *TAG_MSGSEND;
static const char *TAG_MSGSENDSUPER;
static const char *TAG_MSGSEND_STRET;
static const char *TAG_MSGSENDSUPER_STRET;
static const char *TAG_EXECCLASS;
static const char *default_constant_string_class_name;
#define CLS_FACTORY 0x0001L
#define CLS_META 0x0002L
#define OBJC_MODIFIER_STATIC 0x00000001
#define OBJC_MODIFIER_FINAL 0x00000002
#define OBJC_MODIFIER_PUBLIC 0x00000004
#define OBJC_MODIFIER_PRIVATE 0x00000008
#define OBJC_MODIFIER_PROTECTED 0x00000010
#define OBJC_MODIFIER_NATIVE 0x00000020
#define OBJC_MODIFIER_SYNCHRONIZED 0x00000040
#define OBJC_MODIFIER_ABSTRACT 0x00000080
#define OBJC_MODIFIER_VOLATILE 0x00000100
#define OBJC_MODIFIER_TRANSIENT 0x00000200
#define OBJC_MODIFIER_NONE_SPECIFIED 0x80000000
#define TAG_MSGSEND_NONNIL "objc_msgSendNonNil"
#define TAG_MSGSEND_NONNIL_STRET "objc_msgSendNonNil_stret"
#define TAG_EXCEPTIONEXTRACT "objc_exception_extract"
#define TAG_EXCEPTIONTRYENTER "objc_exception_try_enter"
#define TAG_EXCEPTIONTRYEXIT "objc_exception_try_exit"
#define TAG_EXCEPTIONMATCH "objc_exception_match"
#define TAG_EXCEPTIONTHROW "objc_exception_throw"
#define TAG_SYNCENTER "objc_sync_enter"
#define TAG_SYNCEXIT "objc_sync_exit"
#define TAG_SETJMP "_setjmp"
#define TAG_RETURN_STRUCT "objc_return_struct"
#define UTAG_EXCDATA "_objc_exception_data"
#define UTAG_EXCDATA_VAR "_stackExceptionData"
#define UTAG_CAUGHTEXC_VAR "_caughtException"
#define UTAG_RETHROWEXC_VAR "_rethrowException"
#define UTAG_EVALONCE_VAR "_eval_once"
struct val_stack {
long val;
struct val_stack *next;
};
static struct val_stack *catch_count_stack, *exc_binding_stack;
static int if_nesting_count, blk_nesting_count;
static void val_stack_push PARAMS ((struct val_stack **, long));
static void val_stack_pop PARAMS ((struct val_stack **));
tree objc_global_trees[OCTI_MAX];
static void generate_objc_image_info PARAMS ((void));
static void handle_impent PARAMS ((struct imp_entry *));
struct imp_entry *imp_list = 0;
int imp_count = 0;
int cat_count = 0;
static int method_slot = 0;
#define BUFSIZE 1024
static char *errbuf;
extern enum debug_info_type write_symbols;
extern const char *dump_base_name;
static int flag_typed_selectors;
FILE *gen_declaration_file;
static int generating_instance_variables = 0;
static void
generate_struct_by_value_array ()
{
tree type;
tree field_decl, field_decl_chain;
int i, j;
int aggregate_in_mem[32];
int found = 0;
for (i = 1; i < 32; i++)
{
char buffer[5];
type = start_struct (RECORD_TYPE, NULL_TREE);
strcpy (buffer, "c1");
field_decl = create_builtin_decl (FIELD_DECL,
char_type_node,
buffer);
field_decl_chain = field_decl;
for (j = 1; j < i; j++)
{
sprintf (buffer, "c%d", j + 1);
field_decl = create_builtin_decl (FIELD_DECL,
char_type_node,
buffer);
chainon (field_decl_chain, field_decl);
}
finish_struct (type, field_decl_chain, NULL_TREE);
aggregate_in_mem[i] = aggregate_value_p (type);
if (!aggregate_in_mem[i])
found = 1;
}
if (found)
{
for (i = 31; i >= 0; i--)
if (!aggregate_in_mem[i])
break;
printf ("#define OBJC_MAX_STRUCT_BY_VALUE %d\n\n", i);
printf ("static int struct_forward_array[] = {\n 0");
for (j = 1; j <= i; j++)
printf (", %d", aggregate_in_mem[j]);
printf ("\n};\n");
}
exit (0);
}
const char *
objc_init (filename)
const char *filename;
{
#ifdef OBJCPLUS
filename = cxx_init (filename);
#else
filename = c_objc_common_init (filename);
#endif
if (filename == NULL)
return filename;
lineno = 0;
#ifdef ENABLE_DMP_TREE
if (!objc_prev_lang_dump_tree_p)
objc_prev_lang_dump_tree_p = set_dump_tree_p (objc_dump_tree_p);
if (objc_prev_lang_dump_tree_p != &c_dump_tree_p)
abort ();
SET_MAX_DMP_TREE_CODE (LAST_OBJC_TREE_CODE);
#endif
if (flag_gen_declaration)
{
register char * const dumpname = concat (dump_base_name, ".decl", NULL);
gen_declaration_file = fopen (dumpname, "w");
if (gen_declaration_file == 0)
fatal_io_error ("can't open %s", dumpname);
free (dumpname);
}
if (flag_next_runtime)
{
TAG_GETCLASS = "objc_getClass";
TAG_GETMETACLASS = "objc_getMetaClass";
TAG_MSGSEND = "objc_msgSend";
TAG_MSGSENDSUPER = "objc_msgSendSuper";
TAG_MSGSEND_STRET = "objc_msgSend_stret";
TAG_MSGSENDSUPER_STRET = "objc_msgSendSuper_stret";
TAG_EXECCLASS = "__objc_execClass";
default_constant_string_class_name = "NSConstantString";
}
else
{
TAG_GETCLASS = "objc_get_class";
TAG_GETMETACLASS = "objc_get_meta_class";
TAG_MSGSEND = "objc_msg_lookup";
TAG_MSGSENDSUPER = "objc_msg_lookup_super";
TAG_EXECCLASS = "__objc_exec_class";
default_constant_string_class_name = "NXConstantString";
flag_typed_selectors = 1;
}
objc_ellipsis_node = make_node (ERROR_MARK);
init_objc ();
if (print_struct_values)
generate_struct_by_value_array ();
return filename;
}
void
objc_finish_file ()
{
#ifdef OBJCPLUS
if (! cxx_finish_file_start ())
return;
cxx_finish_file_rest ();
#else
c_objc_common_finish_file ();
#endif
if (!flag_syntax_only)
finish_objc ();
if (gen_declaration_file)
fclose (gen_declaration_file);
}
static tree
define_decl (declarator, declspecs)
tree declarator;
tree declspecs;
{
tree decl;
flag_suppress_builtin_indexing = 1;
decl = start_decl (declarator, declspecs, 0, NULL_TREE);
finish_decl (decl, NULL_TREE, NULL_TREE);
flag_suppress_builtin_indexing = 0;
return decl;
}
static tree
lookup_method_in_protocol_list (rproto_list, sel_name, class_meth)
tree rproto_list;
tree sel_name;
int class_meth;
{
tree rproto, p;
tree fnd = 0;
for (rproto = rproto_list; rproto; rproto = TREE_CHAIN (rproto))
{
p = TREE_VALUE (rproto);
if (TREE_CODE (p) == PROTOCOL_INTERFACE_TYPE)
{
if ((fnd = lookup_method (class_meth
? PROTOCOL_CLS_METHODS (p)
: PROTOCOL_NST_METHODS (p), sel_name)))
;
else if (PROTOCOL_LIST (p))
fnd = lookup_method_in_protocol_list (PROTOCOL_LIST (p),
sel_name, class_meth);
}
else
{
;
}
if (fnd)
return fnd;
}
return 0;
}
static tree
lookup_protocol_in_reflist (rproto_list, lproto)
tree rproto_list;
tree lproto;
{
tree rproto, p;
if (TREE_CODE (lproto) == PROTOCOL_INTERFACE_TYPE)
{
tree fnd = 0;
for (rproto = rproto_list; rproto; rproto = TREE_CHAIN (rproto))
{
p = TREE_VALUE (rproto);
if (TREE_CODE (p) == PROTOCOL_INTERFACE_TYPE)
{
if (lproto == p)
fnd = lproto;
else if (PROTOCOL_LIST (p))
fnd = lookup_protocol_in_reflist (PROTOCOL_LIST (p), lproto);
}
if (fnd)
return fnd;
}
}
else
{
;
}
return 0;
}
int
objc_comptypes (lhs, rhs, reflexive)
tree lhs;
tree rhs;
int reflexive;
{
if (TREE_CODE (lhs) == POINTER_TYPE
&& TREE_CODE (TREE_TYPE (lhs)) == RECORD_TYPE
&& TREE_CODE (rhs) == POINTER_TYPE
&& TREE_CODE (TREE_TYPE (rhs)) == RECORD_TYPE)
{
int lhs_is_proto = IS_PROTOCOL_QUALIFIED_ID (lhs);
int rhs_is_proto = IS_PROTOCOL_QUALIFIED_ID (rhs);
if (lhs_is_proto)
{
tree lproto, lproto_list = TYPE_PROTOCOL_LIST (lhs);
tree rproto, rproto_list;
tree p;
if (rhs_is_proto)
{
rproto_list = TYPE_PROTOCOL_LIST (rhs);
if (!reflexive)
{
for (lproto = lproto_list; lproto;
lproto = TREE_CHAIN (lproto))
{
p = TREE_VALUE (lproto);
rproto = lookup_protocol_in_reflist (rproto_list, p);
if (!rproto)
warning
("object does not conform to the `%s' protocol",
IDENTIFIER_POINTER (PROTOCOL_NAME (p)));
}
return 1;
}
else
{
for (lproto = lproto_list; lproto;
lproto = TREE_CHAIN (lproto))
{
p = TREE_VALUE (lproto);
rproto = lookup_protocol_in_reflist (rproto_list, p);
if (!rproto)
{
for (rproto = rproto_list; rproto;
rproto = TREE_CHAIN (rproto))
{
p = TREE_VALUE (rproto);
lproto = lookup_protocol_in_reflist (lproto_list,
p);
if (!lproto)
{
return 0;
}
}
return 1;
}
}
return 1;
}
}
else if (TYPED_OBJECT (TREE_TYPE (rhs)))
{
tree rname = OBJC_TYPE_NAME (TREE_TYPE (rhs));
tree rinter;
for (lproto = lproto_list; lproto; lproto = TREE_CHAIN (lproto))
{
p = TREE_VALUE (lproto);
rproto = 0;
rinter = lookup_interface (rname);
while (rinter && !rproto)
{
tree cat;
rproto_list = CLASS_PROTOCOL_LIST (rinter);
rproto = lookup_protocol_in_reflist (rproto_list, p);
if (!rproto)
{
rproto_list = TYPE_PROTOCOL_LIST (TREE_TYPE (rhs));
rproto = lookup_protocol_in_reflist (rproto_list, p);
}
cat = CLASS_CATEGORY_LIST (rinter);
while (cat && !rproto)
{
rproto_list = CLASS_PROTOCOL_LIST (cat);
rproto = lookup_protocol_in_reflist (rproto_list, p);
cat = CLASS_CATEGORY_LIST (cat);
}
rinter = lookup_interface (CLASS_SUPER_NAME (rinter));
}
if (!rproto)
warning ("class `%s' does not implement the `%s' protocol",
IDENTIFIER_POINTER (OBJC_TYPE_NAME (TREE_TYPE (rhs))),
IDENTIFIER_POINTER (PROTOCOL_NAME (p)));
}
return 1;
}
else if (OBJC_TYPE_NAME (TREE_TYPE (rhs)) == objc_object_id)
{
return 1;
}
else if (OBJC_TYPE_NAME (TREE_TYPE (rhs)) == objc_class_id)
{
return 0;
}
return -1;
}
else if (rhs_is_proto)
{
if (TYPED_OBJECT (TREE_TYPE (lhs)))
{
if (reflexive)
{
tree rname = OBJC_TYPE_NAME (TREE_TYPE (lhs));
tree rinter;
tree rproto, rproto_list = TYPE_PROTOCOL_LIST (rhs);
for (rproto = rproto_list; rproto;
rproto = TREE_CHAIN (rproto))
{
tree p = TREE_VALUE (rproto);
tree lproto = 0;
rinter = lookup_interface (rname);
while (rinter && !lproto)
{
tree cat;
tree lproto_list = CLASS_PROTOCOL_LIST (rinter);
lproto = lookup_protocol_in_reflist (lproto_list, p);
if (!lproto)
{
lproto_list = TYPE_PROTOCOL_LIST
(TREE_TYPE (lhs));
lproto = lookup_protocol_in_reflist
(lproto_list, p);
}
cat = CLASS_CATEGORY_LIST (rinter);
while (cat && !lproto)
{
lproto_list = CLASS_PROTOCOL_LIST (cat);
lproto = lookup_protocol_in_reflist (lproto_list,
p);
cat = CLASS_CATEGORY_LIST (cat);
}
rinter = lookup_interface (CLASS_SUPER_NAME
(rinter));
}
if (!lproto)
warning ("class `%s' does not implement the `%s' protocol",
IDENTIFIER_POINTER (OBJC_TYPE_NAME
(TREE_TYPE (lhs))),
IDENTIFIER_POINTER (PROTOCOL_NAME (p)));
}
return 1;
}
else
return 0;
}
else if (OBJC_TYPE_NAME (TREE_TYPE (lhs)) == objc_object_id)
{
return 1;
}
else if (OBJC_TYPE_NAME (TREE_TYPE (lhs)) == objc_class_id)
{
return 0;
}
else
{
return -1;
}
}
else
{
lhs = TREE_TYPE (lhs);
rhs = TREE_TYPE (rhs);
}
}
if (TREE_CODE (lhs) != RECORD_TYPE || TREE_CODE (rhs) != RECORD_TYPE)
{
return -1;
}
if ((OBJC_TYPE_NAME (lhs) == objc_object_id && TYPED_OBJECT (rhs))
|| (OBJC_TYPE_NAME (rhs) == objc_object_id && TYPED_OBJECT (lhs)))
return 1;
else if ((OBJC_TYPE_NAME (lhs) == objc_object_id
&& OBJC_TYPE_NAME (rhs) == objc_class_id)
|| (OBJC_TYPE_NAME (lhs) == objc_class_id
&& OBJC_TYPE_NAME (rhs) == objc_object_id))
return 1;
else if (TYPED_OBJECT (lhs) && TYPED_OBJECT (rhs))
{
tree lname = OBJC_TYPE_NAME (lhs);
tree rname = OBJC_TYPE_NAME (rhs);
tree inter;
if (lname == rname)
return 1;
for (inter = lookup_interface (rname); inter;
inter = lookup_interface (CLASS_SUPER_NAME (inter)))
if (lname == CLASS_SUPER_NAME (inter))
return 1;
if (reflexive)
for (inter = lookup_interface (lname); inter;
inter = lookup_interface (CLASS_SUPER_NAME (inter)))
if (rname == CLASS_SUPER_NAME (inter))
return 1;
return 0;
}
else
return -1;
}
void
objc_check_decl (decl)
tree decl;
{
tree type = TREE_TYPE (decl);
if (TREE_CODE (type) != RECORD_TYPE)
return;
if (TYPE_NAME (type) && (type = is_class_name (TYPE_NAME (type))))
error ("statically allocated instance of Objective-C class `%s'",
IDENTIFIER_POINTER (type));
}
tree
get_static_reference (interface, protocols)
tree interface;
tree protocols;
{
tree type = xref_tag (RECORD_TYPE, interface);
if (protocols)
{
tree t, m = TYPE_MAIN_VARIANT (type);
t = copy_node (type);
TYPE_NEXT_VARIANT (t) = TYPE_NEXT_VARIANT (m);
TYPE_NEXT_VARIANT (m) = t;
TYPE_PROTOCOL_LIST (t) = lookup_and_install_protocols (protocols);
if (TYPE_POINTER_TO (t))
TYPE_POINTER_TO (t) = NULL_TREE;
type = t;
}
return type;
}
tree
get_object_reference (protocols)
tree protocols;
{
tree type_decl = lookup_name (objc_id_id);
tree type;
if (type_decl && TREE_CODE (type_decl) == TYPE_DECL)
{
type = TREE_TYPE (type_decl);
if (TYPE_MAIN_VARIANT (type) != id_type)
warning ("unexpected type for `id' (%s)",
gen_declaration (type, errbuf));
}
else
{
error ("undefined type `id', please import <objc/objc.h>");
return error_mark_node;
}
if (protocols)
{
tree t, m = TYPE_MAIN_VARIANT (type);
t = copy_node (type);
TYPE_NEXT_VARIANT (t) = TYPE_NEXT_VARIANT (m);
TYPE_NEXT_VARIANT (m) = t;
TYPE_PROTOCOL_LIST (t) = lookup_and_install_protocols (protocols);
if (TYPE_POINTER_TO (t))
TYPE_POINTER_TO (t) = NULL_TREE;
type = t;
}
return type;
}
static void
check_protocol_recursively (proto, list)
tree proto;
tree list;
{
tree p;
for (p = list; p; p = TREE_CHAIN (p))
{
tree pp = TREE_VALUE (p);
if (TREE_CODE (pp) == IDENTIFIER_NODE)
pp = lookup_protocol (pp);
if (pp == proto)
fatal_error ("protocol `%s' has circular dependency",
IDENTIFIER_POINTER (PROTOCOL_NAME (pp)));
if (pp)
check_protocol_recursively (proto, PROTOCOL_LIST (pp));
}
}
static tree
lookup_and_install_protocols (protocols)
tree protocols;
{
tree proto;
tree prev = NULL;
tree return_value = protocols;
for (proto = protocols; proto; proto = TREE_CHAIN (proto))
{
tree ident = TREE_VALUE (proto);
tree p = lookup_protocol (ident);
if (!p)
{
error ("cannot find protocol declaration for `%s'",
IDENTIFIER_POINTER (ident));
return error_mark_node;
}
else
{
TREE_VALUE (proto) = p;
prev = proto;
}
}
return return_value;
}
static tree
create_builtin_decl (code, type, name)
enum tree_code code;
tree type;
const char *name;
{
tree decl = build_decl (code, get_identifier (name), type);
if (code == VAR_DECL)
{
TREE_STATIC (decl) = 1;
make_decl_rtl (decl, 0);
pushdecl (decl);
DECL_ARTIFICIAL (decl) = 1;
}
return decl;
}
static void
setup_string_decl ()
{
if (!string_class_decl)
{
if (!constant_string_global_id)
{
char *name;
size_t length;
length = strlen (STRING_OBJECT_GLOBAL_FORMAT)
+ strlen (constant_string_class_name);
name = xmalloc (length);
sprintf (name, STRING_OBJECT_GLOBAL_FORMAT,
constant_string_class_name);
constant_string_global_id = get_identifier (name);
}
string_class_decl = lookup_name (constant_string_global_id);
}
}
static void
synth_module_prologue ()
{
tree temp_type;
#ifdef OBJCPLUS
push_lang_context (lang_name_c);
#endif
objc_object_id = get_identifier (TAG_OBJECT);
objc_object_reference = xref_tag (RECORD_TYPE, objc_object_id);
id_type = build_pointer_type (objc_object_reference);
objc_id_id = get_identifier (TYPE_ID);
objc_class_id = get_identifier (TAG_CLASS);
objc_class_type = build_pointer_type (xref_tag (RECORD_TYPE, objc_class_id));
temp_type = get_identifier (PROTOCOL_OBJECT_CLASS_NAME);
objc_declare_class (tree_cons (NULL_TREE, temp_type, NULL_TREE));
protocol_type = build_pointer_type (xref_tag (RECORD_TYPE,
temp_type));
selector_type
= build_pointer_type (xref_tag (RECORD_TYPE,
get_identifier (TAG_SELECTOR)));
super_type = build_pointer_type (xref_tag (RECORD_TYPE,
get_identifier (TAG_SUPER)));
temp_type
= build_function_type (id_type,
tree_cons (NULL_TREE, id_type,
tree_cons (NULL_TREE, selector_type,
NULL_TREE)));
if (! flag_next_runtime)
{
umsg_decl = build_decl (FUNCTION_DECL,
get_identifier (TAG_MSGSEND), temp_type);
DECL_EXTERNAL (umsg_decl) = 1;
TREE_PUBLIC (umsg_decl) = 1;
DECL_INLINE (umsg_decl) = 1;
DECL_ARTIFICIAL (umsg_decl) = 1;
make_decl_rtl (umsg_decl, NULL);
pushdecl (umsg_decl);
}
else
{
umsg_decl = builtin_function (TAG_MSGSEND, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
umsg_nonnil_decl = builtin_function (TAG_MSGSEND_NONNIL, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
}
temp_type
= build_function_type (id_type,
tree_cons (NULL_TREE, super_type,
tree_cons (NULL_TREE, selector_type,
NULL_TREE)));
umsg_super_decl = builtin_function (TAG_MSGSENDSUPER,
temp_type, 0, NOT_BUILT_IN,
NULL, NULL_TREE);
if (flag_next_runtime)
{
tree objc_return_struct_type
= xref_tag (RECORD_TYPE,
get_identifier (TAG_RETURN_STRUCT));
tree stret_temp_type
= build_function_type (id_type,
tree_cons (NULL_TREE, id_type,
tree_cons (NULL_TREE, selector_type,
NULL_TREE)));
umsg_stret_decl =
builtin_function (TAG_MSGSEND_STRET, stret_temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
stret_temp_type
= build_function_type (objc_return_struct_type,
tree_cons (NULL_TREE, id_type,
tree_cons (NULL_TREE, selector_type,
NULL_TREE)));
umsg_nonnil_stret_decl =
builtin_function (TAG_MSGSEND_NONNIL_STRET, stret_temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
stret_temp_type
= build_function_type (id_type,
tree_cons (NULL_TREE, super_type,
tree_cons (NULL_TREE, selector_type,
NULL_TREE)));
umsg_super_stret_decl = builtin_function (TAG_MSGSENDSUPER_STRET,
stret_temp_type, 0, NOT_BUILT_IN, 0,
NULL_TREE);
}
temp_type = build_function_type (id_type,
tree_cons (NULL_TREE,
const_string_type_node,
OBJC_VOID_AT_END));
objc_get_class_decl
= builtin_function (TAG_GETCLASS, temp_type, 0, NOT_BUILT_IN,
NULL, NULL_TREE);
objc_get_meta_class_decl
= builtin_function (TAG_GETMETACLASS, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
build_super_template ();
build_objc_exception_stuff ();
if (! flag_next_runtime)
{
if (flag_typed_selectors)
{
enum debug_info_type save_write_symbols = write_symbols;
const struct gcc_debug_hooks *const save_hooks = debug_hooks;
write_symbols = NO_DEBUG;
debug_hooks = &do_nothing_debug_hooks;
build_selector_template ();
temp_type = build_array_type (objc_selector_template, NULL_TREE);
write_symbols = save_write_symbols;
debug_hooks = save_hooks;
}
else
temp_type = build_array_type (selector_type, NULL_TREE);
layout_type (temp_type);
UOBJC_SELECTOR_TABLE_decl
= create_builtin_decl (VAR_DECL, temp_type,
"_OBJC_SELECTOR_TABLE");
TREE_USED (UOBJC_SELECTOR_TABLE_decl) = 1;
}
generate_forward_declaration_to_string_table ();
if (!constant_string_class_name)
constant_string_class_name = default_constant_string_class_name;
constant_string_id = get_identifier (constant_string_class_name);
objc_declare_class (tree_cons (NULL_TREE, constant_string_id, NULL_TREE));
self_id = get_identifier ("self");
ucmd_id = get_identifier ("_cmd");
#ifndef OBJCPLUS
unused_list = build_tree_list (get_identifier ("__unused__"), NULL_TREE);
#endif
#ifdef OBJCPLUS
pop_lang_context ();
#endif
}
static int
check_string_class_template ()
{
tree field_decl = TYPE_FIELDS (constant_string_type);
#define IS_FIELD_OF_TYPE(F, T) \
(F && TREE_CODE (F) == FIELD_DECL && TREE_CODE (TREE_TYPE (F)) == T)
if (!IS_FIELD_OF_TYPE (field_decl, POINTER_TYPE))
return 0;
field_decl = TREE_CHAIN (field_decl);
if (!IS_FIELD_OF_TYPE (field_decl, POINTER_TYPE))
return 0;
field_decl = TREE_CHAIN (field_decl);
if (!IS_FIELD_OF_TYPE (field_decl, INTEGER_TYPE)
|| (TREE_INT_CST_LOW (DECL_SIZE (field_decl))
!= TREE_INT_CST_LOW (TYPE_SIZE (unsigned_type_node))))
return 0;
field_decl = TREE_CHAIN (field_decl);
return (!field_decl || TREE_CODE (field_decl) != FIELD_DECL);
#undef IS_FIELD_OF_TYPE
}
static tree
my_build_string (len, str)
int len;
const char *str;
{
return fix_string_type (build_string (len, str));
}
tree
build_objc_string_object (strings)
tree strings;
{
tree string, initlist, constructor, constant_string_class;
int length;
if (TREE_CHAIN (strings))
{
varray_type vstrings;
VARRAY_TREE_INIT (vstrings, 32, "strings");
for (; strings ; strings = TREE_CHAIN (strings))
VARRAY_PUSH_TREE (vstrings, strings);
string = combine_strings (vstrings);
}
else
string = strings;
string = fix_string_type (string);
constant_string_class = lookup_interface (constant_string_id);
if (!constant_string_class
|| !(constant_string_type
= CLASS_STATIC_TEMPLATE (constant_string_class)))
{
error ("cannot find interface declaration for `%s'",
IDENTIFIER_POINTER (constant_string_id));
return error_mark_node;
}
if (flag_constant_cfstrings)
return build_c_cast (build_pointer_type (constant_string_type),
build_cfstring_ascii (string));
add_class_reference (constant_string_id);
TREE_SET_CODE (string, STRING_CST);
length = TREE_STRING_LENGTH (string) - 1;
if (!check_string_class_template ())
{
error ("interface `%s' lacks required ivars",
IDENTIFIER_POINTER (constant_string_id));
return error_mark_node;
}
if (flag_next_runtime)
{
setup_string_decl ();
if (string_class_decl == NULL_TREE)
{
error ("cannot find reference tag for class `%s'",
IDENTIFIER_POINTER (constant_string_id));
return error_mark_node;
}
initlist = build_tree_list
(NULL_TREE,
copy_node (build_unary_op (ADDR_EXPR, string_class_decl, 0)));
}
else
{
initlist = build_tree_list (NULL_TREE, build_int_2 (0, 0));
}
initlist
= tree_cons (NULL_TREE, copy_node (build_unary_op (ADDR_EXPR, string, 1)),
initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (length, 0), initlist);
constructor = build_constructor (constant_string_type, nreverse (initlist));
if (!flag_next_runtime)
{
constructor
= objc_add_static_instance (constructor, constant_string_type);
}
return (build_unary_op (ADDR_EXPR, constructor, 1));
}
static GTY(()) int num_static_inst;
static tree
objc_add_static_instance (constructor, class_decl)
tree constructor, class_decl;
{
tree *chain, decl;
char buf[256];
for (chain = &objc_static_instances;
*chain && TREE_VALUE (*chain) != class_decl;
chain = &TREE_CHAIN (*chain));
if (!*chain)
{
*chain = tree_cons (NULL_TREE, class_decl, NULL_TREE);
add_objc_string (OBJC_TYPE_NAME (class_decl), class_names);
}
sprintf (buf, "_OBJC_INSTANCE_%d", num_static_inst++);
decl = build_decl (VAR_DECL, get_identifier (buf), class_decl);
DECL_COMMON (decl) = 1;
TREE_STATIC (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
DECL_INITIAL (decl) = constructor;
DECL_DEFER_OUTPUT (decl) = 1;
pushdecl_top_level (decl);
rest_of_decl_compilation (decl, 0, 1, 0);
TREE_PURPOSE (*chain) = tree_cons (NULL_TREE, decl, TREE_PURPOSE (*chain));
return decl;
}
static tree
build_constructor (type, elts)
tree type, elts;
{
tree constructor, f, e;
if (TREE_CODE (type) == ARRAY_TYPE)
{
f = TREE_TYPE (type);
if (TREE_CODE (f) == POINTER_TYPE || TREE_CODE (f) == INTEGER_TYPE)
for (e = elts; e ; e = TREE_CHAIN (e))
TREE_VALUE (e) = convert (f, TREE_VALUE (e));
}
else
{
f = TYPE_FIELDS (type);
for (e = elts; e && f; e = TREE_CHAIN (e), f = TREE_CHAIN (f))
if (TREE_CODE (TREE_TYPE (f)) == POINTER_TYPE
|| TREE_CODE (TREE_TYPE (f)) == INTEGER_TYPE)
TREE_VALUE (e) = convert (TREE_TYPE (f), TREE_VALUE (e));
}
constructor = build (CONSTRUCTOR, type, NULL_TREE, elts);
TREE_CONSTANT (constructor) = 1;
TREE_STATIC (constructor) = 1;
TREE_READONLY (constructor) = 1;
#ifdef OBJCPLUS
TREE_HAS_CONSTRUCTOR (constructor) = 1;
#endif
return constructor;
}
static void
build_objc_symtab_template ()
{
tree field_decl, field_decl_chain;
objc_symtab_template
= start_struct (RECORD_TYPE, get_identifier (UTAG_SYMTAB));
field_decl = create_builtin_decl (FIELD_DECL,
long_integer_type_node,
"sel_ref_cnt");
field_decl_chain = field_decl;
field_decl = create_builtin_decl (FIELD_DECL,
build_pointer_type (selector_type),
"refs");
chainon (field_decl_chain, field_decl);
field_decl = create_builtin_decl (FIELD_DECL,
short_integer_type_node,
"cls_def_cnt");
chainon (field_decl_chain, field_decl);
field_decl = create_builtin_decl (FIELD_DECL,
short_integer_type_node,
"cat_def_cnt");
chainon (field_decl_chain, field_decl);
if (imp_count || cat_count || !flag_next_runtime)
{
int index = imp_count + cat_count
+ (flag_next_runtime? -1: 0);
field_decl = create_builtin_decl
(FIELD_DECL,
build_array_type
(ptr_type_node,
build_index_type (build_int_2 (index, 0))),
"defs");
chainon (field_decl_chain, field_decl);
}
finish_struct (objc_symtab_template, field_decl_chain, NULL_TREE);
}
static tree
init_def_list (type)
tree type;
{
tree expr, initlist = NULL_TREE;
struct imp_entry *impent;
if (imp_count)
for (impent = imp_list; impent; impent = impent->next)
{
if (TREE_CODE (impent->imp_context) == CLASS_IMPLEMENTATION_TYPE)
{
expr = build_unary_op (ADDR_EXPR, impent->class_decl, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
}
if (cat_count)
for (impent = imp_list; impent; impent = impent->next)
{
if (TREE_CODE (impent->imp_context) == CATEGORY_IMPLEMENTATION_TYPE)
{
expr = build_unary_op (ADDR_EXPR, impent->class_decl, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
}
if (!flag_next_runtime)
{
tree expr;
if (static_instances_decl)
expr = build_unary_op (ADDR_EXPR, static_instances_decl, 0);
else
expr = build_int_2 (0, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
return build_constructor (type, nreverse (initlist));
}
static tree
init_objc_symtab (type)
tree type;
{
tree initlist;
initlist = build_tree_list (NULL_TREE, build_int_2 (0, 0));
if (flag_next_runtime || ! sel_ref_chain)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
initlist = tree_cons (NULL_TREE,
build_unary_op (ADDR_EXPR,
UOBJC_SELECTOR_TABLE_decl, 1),
initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (imp_count, 0), initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (cat_count, 0), initlist);
if (imp_count || cat_count || !flag_next_runtime)
{
tree field = TYPE_FIELDS (type);
field = TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (TREE_CHAIN (field))));
initlist = tree_cons (NULL_TREE, init_def_list (TREE_TYPE (field)),
initlist);
}
return build_constructor (type, nreverse (initlist));
}
static tree
build_metadata_decl (name, type)
const char *name;
tree type;
{
tree decl, decl_specs;
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_EXTERN]);
decl_specs = tree_cons (NULL_TREE, type, decl_specs);
decl = define_decl (synth_id_with_class_suffix
(name,
objc_implementation_context),
decl_specs);
TREE_USED (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
TREE_PUBLIC (decl) = 0;
return decl;
}
static void
forward_declare_categories ()
{
struct imp_entry *impent;
tree sav = objc_implementation_context;
for (impent = imp_list; impent; impent = impent->next)
{
if (TREE_CODE (impent->imp_context) == CATEGORY_IMPLEMENTATION_TYPE)
{
objc_implementation_context = impent->imp_context;
impent->class_decl = build_metadata_decl ("_OBJC_CATEGORY",
objc_category_template);
}
}
objc_implementation_context = sav;
}
static void
generate_objc_symtab_decl ()
{
tree sc_spec;
if (!objc_category_template)
build_category_template ();
if (cat_count)
forward_declare_categories ();
if (!objc_symtab_template)
build_objc_symtab_template ();
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
flag_suppress_builtin_indexing = 1;
UOBJC_SYMBOLS_decl = start_decl (get_identifier ("_OBJC_SYMBOLS"),
tree_cons (NULL_TREE,
objc_symtab_template, sc_spec),
1,
NULL_TREE);
TREE_USED (UOBJC_SYMBOLS_decl) = 1;
DECL_IGNORED_P (UOBJC_SYMBOLS_decl) = 1;
DECL_ARTIFICIAL (UOBJC_SYMBOLS_decl) = 1;
finish_decl (UOBJC_SYMBOLS_decl,
init_objc_symtab (TREE_TYPE (UOBJC_SYMBOLS_decl)),
NULL_TREE);
flag_suppress_builtin_indexing = 0;
}
static tree
init_module_descriptor (type)
tree type;
{
tree initlist, expr;
expr = build_int_2 (OBJC_VERSION, 0);
initlist = build_tree_list (NULL_TREE, expr);
expr = size_in_bytes (objc_module_template);
initlist = tree_cons (NULL_TREE, expr, initlist);
expr = add_objc_string (get_identifier (input_filename), class_names);
initlist = tree_cons (NULL_TREE, expr, initlist);
if (UOBJC_SYMBOLS_decl)
expr = build_unary_op (ADDR_EXPR, UOBJC_SYMBOLS_decl, 0);
else
expr = build_int_2 (0, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
return build_constructor (type, nreverse (initlist));
}
static rtx
build_module_descriptor ()
{
tree decl_specs, field_decl, field_decl_chain;
#ifdef OBJCPLUS
push_lang_context (lang_name_c);
#endif
objc_module_template
= start_struct (RECORD_TYPE, get_identifier (UTAG_MODULE));
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
field_decl = get_identifier ("version");
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
field_decl = get_identifier ("size");
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("name"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = get_identifier (UTAG_SYMTAB);
decl_specs = build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE, decl_specs));
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("symtab"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_module_template, field_decl_chain, NULL_TREE);
decl_specs = tree_cons (NULL_TREE, objc_module_template,
build_tree_list (NULL_TREE,
ridpointers[(int) RID_STATIC]));
flag_suppress_builtin_indexing = 1;
UOBJC_MODULES_decl = start_decl (get_identifier ("_OBJC_MODULES"),
decl_specs, 1, NULL_TREE);
DECL_ARTIFICIAL (UOBJC_MODULES_decl) = 1;
DECL_IGNORED_P (UOBJC_MODULES_decl) = 1;
DECL_CONTEXT (UOBJC_MODULES_decl) = NULL_TREE;
finish_decl (UOBJC_MODULES_decl,
init_module_descriptor (TREE_TYPE (UOBJC_MODULES_decl)),
NULL_TREE);
DECL_IN_SYSTEM_HEADER (UOBJC_MODULES_decl) = 1;
flag_suppress_builtin_indexing = 0;
if (flag_next_runtime)
return NULL_RTX;
{
tree parms, execclass_decl, decelerator, void_list_node_1;
tree init_function_name, init_function_decl;
void_list_node_1 = build_tree_list (NULL_TREE, void_type_node);
execclass_decl = build_decl (FUNCTION_DECL,
get_identifier (TAG_EXECCLASS),
build_function_type (void_type_node,
tree_cons (NULL_TREE, ptr_type_node,
OBJC_VOID_AT_END)));
DECL_EXTERNAL (execclass_decl) = 1;
DECL_ARTIFICIAL (execclass_decl) = 1;
TREE_PUBLIC (execclass_decl) = 1;
pushdecl (execclass_decl);
rest_of_decl_compilation (execclass_decl, 0, 0, 0);
assemble_external (execclass_decl);
init_function_name = get_file_function_name ('I');
parms = tree_cons (NULL_TREE, NULL_TREE, void_list_node_1);
start_function (void_list_node_1,
build_nt (CALL_EXPR, init_function_name,
parms, NULL_TREE),
NULL_TREE);
store_parm_decls ();
init_function_decl = current_function_decl;
TREE_PUBLIC (init_function_decl) = ! targetm.have_ctors_dtors;
TREE_USED (init_function_decl) = 1;
DECL_INLINE (init_function_decl) = 0;
DECL_UNINLINABLE (init_function_decl) = 1;
current_function_cannot_inline
= "static constructors and destructors cannot be inlined";
parms
= build_tree_list (NULL_TREE,
build_unary_op (ADDR_EXPR, UOBJC_MODULES_decl, 0));
decelerator = build_function_call (execclass_decl, parms);
c_expand_expr_stmt (decelerator);
#ifdef OBJCPLUS
finish_function (0);
#else
finish_function (0, 0);
#endif
#ifdef OBJCPLUS
pop_lang_context ();
#endif
return XEXP (DECL_RTL (init_function_decl), 0);
}
}
static void
generate_forward_declaration_to_string_table ()
{
tree sc_spec, decl_specs, expr_decl;
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_EXTERN], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
expr_decl
= build_nt (ARRAY_REF, get_identifier ("_OBJC_STRINGS"), NULL_TREE);
UOBJC_STRINGS_decl = define_decl (expr_decl, decl_specs);
}
static tree
get_objc_string_decl (ident, section)
tree ident;
enum string_section section;
{
tree chain;
if (section == class_names)
chain = class_names_chain;
else if (section == meth_var_names)
chain = meth_var_names_chain;
else if (section == meth_var_types)
chain = meth_var_types_chain;
else
abort ();
for (; chain != 0; chain = TREE_CHAIN (chain))
if (TREE_VALUE (chain) == ident)
return (TREE_PURPOSE (chain));
abort ();
return NULL_TREE;
}
static void
generate_static_references ()
{
tree decls = NULL_TREE, ident, decl_spec, expr_decl, expr = NULL_TREE;
tree class_name, class, decl, initlist;
tree cl_chain, in_chain, type;
int num_inst, num_class;
char buf[256];
if (flag_next_runtime)
abort ();
for (cl_chain = objc_static_instances, num_class = 0;
cl_chain; cl_chain = TREE_CHAIN (cl_chain), num_class++)
{
for (num_inst = 0, in_chain = TREE_PURPOSE (cl_chain);
in_chain; num_inst++, in_chain = TREE_CHAIN (in_chain));
sprintf (buf, "_OBJC_STATIC_INSTANCES_%d", num_class);
ident = get_identifier (buf);
expr_decl = build_nt (ARRAY_REF, ident, NULL_TREE);
decl_spec = tree_cons (NULL_TREE, build_pointer_type (void_type_node),
build_tree_list (NULL_TREE,
ridpointers[(int) RID_STATIC]));
decl = start_decl (expr_decl, decl_spec, 1, NULL_TREE);
DECL_CONTEXT (decl) = 0;
DECL_ARTIFICIAL (decl) = 1;
class = TREE_VALUE (cl_chain);
class_name = get_objc_string_decl (OBJC_TYPE_NAME (class), class_names);
initlist = build_tree_list (NULL_TREE,
build_unary_op (ADDR_EXPR, class_name, 1));
for (in_chain = TREE_PURPOSE (cl_chain);
in_chain; in_chain = TREE_CHAIN (in_chain))
{
expr = build_unary_op (ADDR_EXPR, TREE_VALUE (in_chain), 1);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
expr = build_constructor (TREE_TYPE (decl), nreverse (initlist));
finish_decl (decl, expr, NULL_TREE);
TREE_USED (decl) = 1;
type = build_array_type (build_pointer_type (void_type_node), 0);
decl = build_decl (VAR_DECL, ident, type);
TREE_USED (decl) = 1;
TREE_STATIC (decl) = 1;
decls
= tree_cons (NULL_TREE, build_unary_op (ADDR_EXPR, decl, 1), decls);
}
decls = tree_cons (NULL_TREE, build_int_2 (0, 0), decls);
ident = get_identifier ("_OBJC_STATIC_INSTANCES");
expr_decl = build_nt (ARRAY_REF, ident, NULL_TREE);
decl_spec = tree_cons (NULL_TREE, build_pointer_type (void_type_node),
build_tree_list (NULL_TREE,
ridpointers[(int) RID_STATIC]));
static_instances_decl
= start_decl (expr_decl, decl_spec, 1, NULL_TREE);
TREE_USED (static_instances_decl) = 1;
DECL_CONTEXT (static_instances_decl) = 0;
DECL_ARTIFICIAL (static_instances_decl) = 1;
expr = build_constructor (TREE_TYPE (static_instances_decl),
nreverse (decls));
finish_decl (static_instances_decl, expr, NULL_TREE);
}
static void
generate_strings ()
{
tree sc_spec, decl_specs, expr_decl;
tree chain, string_expr;
tree string, decl;
for (chain = class_names_chain; chain; chain = TREE_CHAIN (chain))
{
string = TREE_VALUE (chain);
decl = TREE_PURPOSE (chain);
sc_spec
= tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
expr_decl = build_nt (ARRAY_REF, DECL_NAME (decl), NULL_TREE);
decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE);
DECL_CONTEXT (decl) = NULL_TREE;
string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
IDENTIFIER_POINTER (string));
finish_decl (decl, string_expr, NULL_TREE);
}
for (chain = meth_var_names_chain; chain; chain = TREE_CHAIN (chain))
{
string = TREE_VALUE (chain);
decl = TREE_PURPOSE (chain);
sc_spec
= tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
expr_decl = build_nt (ARRAY_REF, DECL_NAME (decl), NULL_TREE);
decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE);
DECL_CONTEXT (decl) = NULL_TREE;
string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
IDENTIFIER_POINTER (string));
finish_decl (decl, string_expr, NULL_TREE);
}
for (chain = meth_var_types_chain; chain; chain = TREE_CHAIN (chain))
{
string = TREE_VALUE (chain);
decl = TREE_PURPOSE (chain);
sc_spec
= tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], sc_spec);
expr_decl = build_nt (ARRAY_REF, DECL_NAME (decl), NULL_TREE);
decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE);
DECL_CONTEXT (decl) = NULL_TREE;
string_expr = my_build_string (IDENTIFIER_LENGTH (string) + 1,
IDENTIFIER_POINTER (string));
finish_decl (decl, string_expr, NULL_TREE);
}
}
static GTY(()) int selector_reference_idx;
static tree
build_selector_reference_decl ()
{
tree decl, ident;
char buf[256];
sprintf (buf, "_OBJC_SELECTOR_REFERENCES_%d", selector_reference_idx++);
ident = get_identifier (buf);
decl = build_decl (VAR_DECL, ident, selector_type);
DECL_EXTERNAL (decl) = 1;
TREE_USED (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
DECL_CONTEXT (decl) = 0;
make_decl_rtl (decl, 0);
pushdecl_top_level (decl);
return decl;
}
static tree
build_selector (ident)
tree ident;
{
tree expr = add_objc_string (ident, meth_var_names);
if (flag_typed_selectors)
return expr;
else
return build_c_cast (selector_type, expr);
}
static void
build_selector_translation_table ()
{
tree sc_spec, decl_specs;
tree chain, initlist = NULL_TREE;
int offset = 0;
tree decl = NULL_TREE, var_decl, name;
for (chain = sel_ref_chain; chain; chain = TREE_CHAIN (chain))
{
tree expr;
if (warn_selector && objc_implementation_context)
{
tree method_chain;
bool found = false;
for (method_chain = meth_var_names_chain;
method_chain;
method_chain = TREE_CHAIN (method_chain))
{
if (TREE_VALUE (method_chain) == TREE_VALUE (chain))
{
found = true;
break;
}
}
if (!found)
{
int save_lineno = lineno;
if (flag_next_runtime && TREE_PURPOSE (chain))
lineno = DECL_SOURCE_LINE (TREE_PURPOSE (chain));
warning ("creating selector for non existant method %s",
IDENTIFIER_POINTER (TREE_VALUE (chain)));
lineno = save_lineno;
}
}
expr = build_selector (TREE_VALUE (chain));
if (flag_next_runtime)
{
name = DECL_NAME (TREE_PURPOSE (chain));
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
decl_specs = tree_cons (NULL_TREE, selector_type, sc_spec);
var_decl = name;
decl = start_decl (var_decl, decl_specs, 1, NULL_TREE );
}
offset += IDENTIFIER_LENGTH (TREE_VALUE (chain)) + 1;
if (flag_next_runtime)
finish_decl (decl, expr, NULL_TREE);
else
{
if (flag_typed_selectors)
{
tree eltlist = NULL_TREE;
tree encoding = get_proto_encoding (TREE_PURPOSE (chain));
eltlist = tree_cons (NULL_TREE, expr, NULL_TREE);
eltlist = tree_cons (NULL_TREE, encoding, eltlist);
expr = build_constructor (objc_selector_template,
nreverse (eltlist));
}
initlist = tree_cons (NULL_TREE, expr, initlist);
}
}
if (! flag_next_runtime)
{
DECL_EXTERNAL (UOBJC_SELECTOR_TABLE_decl) = 0;
TREE_STATIC (UOBJC_SELECTOR_TABLE_decl) = 1;
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
DECL_INITIAL (UOBJC_SELECTOR_TABLE_decl) = objc_ellipsis_node;
initlist = build_constructor (TREE_TYPE (UOBJC_SELECTOR_TABLE_decl),
nreverse (initlist));
finish_decl (UOBJC_SELECTOR_TABLE_decl, initlist, NULL_TREE);
current_function_decl = NULL_TREE;
}
}
static tree
get_proto_encoding (proto)
tree proto;
{
tree encoding;
if (proto)
{
tree tmp_decl;
if (! METHOD_ENCODING (proto))
{
tmp_decl = build_tmp_function_decl ();
hack_method_prototype (proto, tmp_decl);
encoding = encode_method_prototype (proto, tmp_decl);
METHOD_ENCODING (proto) = encoding;
}
else
encoding = METHOD_ENCODING (proto);
return add_objc_string (encoding, meth_var_types);
}
else
return build_int_2 (0, 0);
}
static tree
build_typed_selector_reference (ident, prototype)
tree ident, prototype;
{
tree *chain = &sel_ref_chain;
tree expr;
int index = 0;
while (*chain)
{
if (TREE_PURPOSE (*chain) == prototype && TREE_VALUE (*chain) == ident)
goto return_at_index;
index++;
chain = &TREE_CHAIN (*chain);
}
*chain = tree_cons (prototype, ident, NULL_TREE);
return_at_index:
expr = build_unary_op (ADDR_EXPR,
build_array_ref (UOBJC_SELECTOR_TABLE_decl,
build_int_2 (index, 0)),
1);
return build_c_cast (selector_type, expr);
}
static tree
build_selector_reference (ident)
tree ident;
{
tree *chain = &sel_ref_chain;
tree expr;
int index = 0;
while (*chain)
{
if (TREE_VALUE (*chain) == ident)
return (flag_next_runtime
? TREE_PURPOSE (*chain)
: build_array_ref (UOBJC_SELECTOR_TABLE_decl,
build_int_2 (index, 0)));
index++;
chain = &TREE_CHAIN (*chain);
}
expr = build_selector_reference_decl ();
*chain = tree_cons (expr, ident, NULL_TREE);
return (flag_next_runtime
? expr
: build_array_ref (UOBJC_SELECTOR_TABLE_decl,
build_int_2 (index, 0)));
}
static GTY(()) int class_reference_idx;
static tree
build_class_reference_decl ()
{
tree decl, ident;
char buf[256];
sprintf (buf, "_OBJC_CLASS_REFERENCES_%d", class_reference_idx++);
ident = get_identifier (buf);
decl = build_decl (VAR_DECL, ident, objc_class_type);
DECL_EXTERNAL (decl) = 1;
TREE_USED (decl) = 1;
DECL_CONTEXT (decl) = 0;
DECL_ARTIFICIAL (decl) = 1;
make_decl_rtl (decl, 0);
pushdecl_top_level (decl);
return decl;
}
static void
add_class_reference (ident)
tree ident;
{
tree chain;
if ((chain = cls_ref_chain))
{
tree tail;
do
{
if (ident == TREE_VALUE (chain))
return;
tail = chain;
chain = TREE_CHAIN (chain);
}
while (chain);
TREE_CHAIN (tail) = tree_cons (NULL_TREE, ident, NULL_TREE);
}
else
cls_ref_chain = tree_cons (NULL_TREE, ident, NULL_TREE);
}
tree
get_class_reference (ident)
tree ident;
{
tree orig_ident;
#ifdef OBJCPLUS
if (processing_template_decl)
return build_min_nt (CLASS_REFERENCE_EXPR, ident);
if (TREE_CODE (ident) == TYPE_DECL)
ident = DECL_NAME (ident);
#endif
orig_ident = ident;
if (!(ident = is_class_name (ident)))
{
error ("`%s' is not an Objective-C class name or alias",
IDENTIFIER_POINTER (orig_ident));
return error_mark_node;
}
if (flag_next_runtime && !flag_zero_link)
{
tree *chain;
tree decl;
for (chain = &cls_ref_chain; *chain; chain = &TREE_CHAIN (*chain))
if (TREE_VALUE (*chain) == ident)
{
if (! TREE_PURPOSE (*chain))
TREE_PURPOSE (*chain) = build_class_reference_decl ();
return TREE_PURPOSE (*chain);
}
decl = build_class_reference_decl ();
*chain = tree_cons (decl, ident, NULL_TREE);
return decl;
}
else
{
tree params;
add_class_reference (ident);
params = build_tree_list (NULL_TREE,
my_build_string (IDENTIFIER_LENGTH (ident) + 1,
IDENTIFIER_POINTER (ident)));
assemble_external (objc_get_class_decl);
return build_function_call (objc_get_class_decl, params);
}
}
static tree
add_objc_string (ident, section)
tree ident;
enum string_section section;
{
tree *chain, decl;
if (section == class_names)
chain = &class_names_chain;
else if (section == meth_var_names)
chain = &meth_var_names_chain;
else if (section == meth_var_types)
chain = &meth_var_types_chain;
else
abort ();
while (*chain)
{
if (TREE_VALUE (*chain) == ident)
return build_unary_op (ADDR_EXPR, TREE_PURPOSE (*chain), 1);
chain = &TREE_CHAIN (*chain);
}
decl = build_objc_string_decl (section);
*chain = tree_cons (decl, ident, NULL_TREE);
return build_unary_op (ADDR_EXPR, decl, 1);
}
static GTY(()) int class_names_idx;
static GTY(()) int meth_var_names_idx;
static GTY(()) int meth_var_types_idx;
static tree
build_objc_string_decl (section)
enum string_section section;
{
tree decl, ident;
char buf[256];
flag_suppress_builtin_indexing = 1;
if (section == class_names)
sprintf (buf, "_OBJC_CLASS_NAME_%d", class_names_idx++);
else if (section == meth_var_names)
sprintf (buf, "_OBJC_METH_VAR_NAME_%d", meth_var_names_idx++);
else if (section == meth_var_types)
sprintf (buf, "_OBJC_METH_VAR_TYPE_%d", meth_var_types_idx++);
ident = get_identifier (buf);
decl = build_decl (VAR_DECL, ident, build_array_type (char_type_node, 0));
DECL_EXTERNAL (decl) = 1;
TREE_USED (decl) = 1;
TREE_CONSTANT (decl) = 1;
DECL_CONTEXT (decl) = 0;
DECL_ARTIFICIAL (decl) = 1;
make_decl_rtl (decl, 0);
pushdecl_top_level (decl);
return decl;
}
void
objc_declare_alias (alias_ident, class_ident)
tree alias_ident;
tree class_ident;
{
tree underlying_class;
#ifdef OBJCPLUS
if (current_namespace != global_namespace) {
error ("Objective-C declarations may only appear in global scope");
}
#endif
if (!(underlying_class = is_class_name (class_ident)))
warning ("cannot find class `%s'", IDENTIFIER_POINTER (class_ident));
else if (is_class_name (alias_ident))
warning ("class `%s' already exists", IDENTIFIER_POINTER (alias_ident));
else
alias_chain = tree_cons (underlying_class, alias_ident, alias_chain);
}
void
objc_declare_class (ident_list)
tree ident_list;
{
tree list;
#ifdef OBJCPLUS
if (current_namespace != global_namespace) {
error ("Objective-C declarations may only appear in global scope");
}
#endif
for (list = ident_list; list; list = TREE_CHAIN (list))
{
tree ident = TREE_VALUE (list);
if (! is_class_name (ident))
{
tree record = lookup_name (ident);
if (record && ! TREE_STATIC_TEMPLATE (record))
{
error ("`%s' redeclared as different kind of symbol",
IDENTIFIER_POINTER (ident));
error_with_decl (record, "previous declaration of `%s'");
}
record = xref_tag (RECORD_TYPE, ident);
TREE_STATIC_TEMPLATE (record) = 1;
class_chain = tree_cons (NULL_TREE, ident, class_chain);
}
}
}
tree
is_class_name (ident)
tree ident;
{
tree chain;
if (TREE_CODE (ident) == IDENTIFIER_NODE
&& IDENTIFIER_GLOBAL_VALUE (ident)
&& TREE_CODE (IDENTIFIER_GLOBAL_VALUE (ident)) == TYPE_DECL)
ident = IDENTIFIER_GLOBAL_VALUE (ident);
while (ident && TREE_CODE (ident) == TYPE_DECL && DECL_RESULT (ident))
ident = TYPE_NAME (DECL_RESULT (ident));
#ifdef OBJCPLUS
if (ident && TREE_CODE (ident) == TYPE_DECL)
ident = DECL_NAME (ident);
#endif
if (!ident || TREE_CODE (ident) != IDENTIFIER_NODE)
return NULL_TREE;
if (lookup_interface (ident))
return ident;
for (chain = class_chain; chain; chain = TREE_CHAIN (chain))
{
if (ident == TREE_VALUE (chain))
return ident;
}
for (chain = alias_chain; chain; chain = TREE_CHAIN (chain))
{
if (ident == TREE_VALUE (chain))
return TREE_PURPOSE (chain);
}
return NULL_TREE;
}
tree
objc_is_id (ident)
tree ident;
{
return (id_type && ident && TYPE_P (ident) && IS_ID (ident))
? id_type
: NULL_TREE;
}
tree
lookup_interface (ident)
tree ident;
{
#ifdef OBJCPLUS
if (ident && TREE_CODE (ident) == TYPE_DECL)
ident = DECL_NAME (ident);
#endif
return (ident && TREE_CODE (ident) == IDENTIFIER_NODE
? IDENTIFIER_INTERFACE_VALUE (ident)
: NULL_TREE);
}
tree
get_class_ivars_from_name (class_name)
tree class_name;
{
tree interface = lookup_interface (class_name);
if (interface)
{
tree ivar = get_class_ivars (interface);
#ifdef OBJCPLUS
for (; ivar; ivar = TREE_CHAIN (ivar))
finish_member_declaration (copy_node (ivar));
#endif
return ivar;
}
else
{
error ("cannot find interface declaration for `%s'",
IDENTIFIER_POINTER (class_name));
return NULL;
}
}
tree
get_class_ivars (interface)
tree interface;
{
tree my_name, super_name, ivar_chain;
my_name = CLASS_NAME (interface);
super_name = CLASS_SUPER_NAME (interface);
ivar_chain = CLASS_IVARS (interface);
if (!CLASS_OWN_IVARS (interface))
CLASS_OWN_IVARS (interface) = copy_list (ivar_chain);
while (super_name)
{
tree op1;
tree super_interface = lookup_interface (super_name);
if (!super_interface)
{
error ("cannot find interface declaration for `%s', superclass of `%s'",
IDENTIFIER_POINTER (super_name),
IDENTIFIER_POINTER (my_name));
exit (FATAL_EXIT_CODE);
}
if (super_interface == interface)
fatal_error ("circular inheritance in interface declaration for `%s'",
IDENTIFIER_POINTER (super_name));
interface = super_interface;
my_name = CLASS_NAME (interface);
super_name = CLASS_SUPER_NAME (interface);
op1 = CLASS_OWN_IVARS (interface);
if (op1)
{
tree head = copy_list (op1);
chainon (head, ivar_chain);
ivar_chain = head;
}
}
return ivar_chain;
}
static tree
objc_enter_block ()
{
tree block;
#ifdef OBJCPLUS
block = begin_compound_stmt (0);
#else
block = c_begin_compound_stmt ();
pushlevel (0);
clear_last_expr ();
add_scope_stmt (1, 0);
#endif
objc_exception_block_stack
= tree_cons (NULL_TREE, block, objc_exception_block_stack);
blk_nesting_count++;
return block;
}
static tree
objc_exit_block ()
{
tree block = TREE_VALUE (objc_exception_block_stack);
#ifndef OBJCPLUS
tree scope_stmt, inner;
#endif
objc_clear_super_receiver ();
#ifdef OBJCPLUS
finish_compound_stmt (0, block);
#else
scope_stmt = add_scope_stmt (0, 0);
inner = poplevel (kept_level_p (), 1, 0);
SCOPE_STMT_BLOCK (TREE_PURPOSE (scope_stmt))
= SCOPE_STMT_BLOCK (TREE_VALUE (scope_stmt))
= inner;
RECHAIN_STMTS (block, COMPOUND_BODY (block));
#endif
last_expr_type = NULL_TREE;
objc_exception_block_stack = TREE_CHAIN (objc_exception_block_stack);
blk_nesting_count--;
return block;
}
static tree
objc_declare_variable (scspec, name, type, init)
enum rid scspec;
tree name, type, init;
{
tree decl;
flag_suppress_builtin_indexing = 1;
type = tree_cons (NULL_TREE, type,
tree_cons (NULL_TREE, ridpointers[(int) scspec], NULL_TREE));
TREE_STATIC (type) = 1;
decl = start_decl (name, type, (init != NULL_TREE), NULL_TREE);
finish_decl (decl, init, NULL_TREE);
TREE_USED (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
flag_suppress_builtin_indexing = 0;
return decl;
}
tree
objc_build_throw_stmt (throw_expr)
tree throw_expr;
{
tree func_params;
if (!flag_objc_exceptions)
fatal_error ("Use `-fobjc-exceptions' to enable Objective-C exception syntax");
if (!throw_expr && objc_caught_exception)
throw_expr = TREE_VALUE (objc_caught_exception);
if (!throw_expr)
{
error ("`@throw;' (rethrow) used outside of a `@catch' block");
return error_mark_node;
}
func_params = tree_cons (NULL_TREE, throw_expr, NULL_TREE);
assemble_external (objc_exception_throw_decl);
return c_expand_expr_stmt (build_function_call
(objc_exception_throw_decl, func_params));
}
static void
val_stack_push (nc, val)
struct val_stack **nc;
long val;
{
struct val_stack *new_elem = xmalloc (sizeof (struct val_stack));
new_elem->val = val;
new_elem->next = *nc;
*nc = new_elem;
}
static void
val_stack_pop (nc)
struct val_stack **nc;
{
struct val_stack *old_elem = *nc;
*nc = old_elem->next;
free (old_elem);
}
static void
objc_build_try_enter_fragment ()
{
tree func_params, if_stmt, cond;
func_params = tree_cons (NULL_TREE,
build_unary_op (ADDR_EXPR, TREE_VALUE (objc_stack_exception_data), 0),
NULL_TREE);
assemble_external (objc_exception_try_enter_decl);
c_expand_expr_stmt (build_function_call
(objc_exception_try_enter_decl, func_params));
if_stmt = c_begin_if_stmt ();
if_nesting_count++;
func_params = tree_cons (NULL_TREE,
build_c_cast (TYPE_ARG_TYPES (TREE_TYPE (objc_setjmp_decl))
? TREE_VALUE (TYPE_ARG_TYPES (TREE_TYPE (objc_setjmp_decl)))
: ptr_type_node,
build_unary_op (ADDR_EXPR,
build_component_ref (TREE_VALUE (objc_stack_exception_data),
get_identifier ("buf")), 0)),
NULL_TREE);
assemble_external (objc_setjmp_decl);
cond = build_unary_op (TRUTH_NOT_EXPR,
build_function_call (objc_setjmp_decl, func_params), 0);
c_expand_start_cond (c_common_truthvalue_conversion (cond),
0, if_stmt);
objc_enter_block ();
}
static tree
objc_build_extract_expr ()
{
tree func_params = tree_cons (NULL_TREE,
build_unary_op (ADDR_EXPR, TREE_VALUE (objc_stack_exception_data), 0),
NULL_TREE);
assemble_external (objc_exception_extract_decl);
return build_function_call (objc_exception_extract_decl, func_params);
}
static void
objc_build_try_exit_fragment ()
{
tree func_params = tree_cons (NULL_TREE,
build_unary_op (ADDR_EXPR, TREE_VALUE (objc_stack_exception_data), 0),
NULL_TREE);
assemble_external (objc_exception_try_exit_decl);
c_expand_expr_stmt (build_function_call
(objc_exception_try_exit_decl, func_params));
}
static void
objc_build_extract_fragment ()
{
objc_exit_block ();
c_finish_then ();
c_expand_start_else ();
objc_enter_block ();
c_expand_expr_stmt
(build_modify_expr
(TREE_VALUE (objc_rethrow_exception),
NOP_EXPR,
objc_build_extract_expr ()));
objc_exit_block ();
c_finish_else ();
c_expand_end_cond ();
if_nesting_count--;
}
tree
objc_build_try_prologue ()
{
tree try_catch_block;
if (!flag_objc_exceptions)
fatal_error ("Use `-fobjc-exceptions' to enable Objective-C exception syntax");
objc_mark_locals_volatile ((void *)(exc_binding_stack
? exc_binding_stack->val
: 0));
objc_enter_block ();
objc_stack_exception_data = tree_cons (NULL_TREE,
objc_declare_variable (RID_AUTO, get_identifier (UTAG_EXCDATA_VAR),
xref_tag (RECORD_TYPE, get_identifier (UTAG_EXCDATA)),
NULL_TREE),
objc_stack_exception_data);
objc_rethrow_exception = tree_cons (NULL_TREE,
objc_declare_variable (RID_VOLATILE, get_identifier (UTAG_RETHROWEXC_VAR),
id_type,
build_int_2 (0, 0)),
objc_rethrow_exception);
try_catch_block = objc_enter_block ();
val_stack_push (&exc_binding_stack,
(long)get_current_binding_level ());
objc_build_try_enter_fragment ();
return try_catch_block;
}
void
objc_build_try_epilogue (also_catch_prologue)
int also_catch_prologue;
{
if (also_catch_prologue) {
tree if_stmt;
objc_exit_block ();
c_finish_then ();
c_expand_start_else ();
objc_enter_block ();
objc_caught_exception = tree_cons (NULL_TREE,
objc_declare_variable (RID_REGISTER, get_identifier (UTAG_CAUGHTEXC_VAR),
id_type, objc_build_extract_expr ()),
objc_caught_exception);
objc_build_try_enter_fragment ();
val_stack_push (&catch_count_stack, 1);
if_stmt = c_begin_if_stmt ();
if_nesting_count++;
c_expand_start_cond (c_common_truthvalue_conversion (boolean_false_node),
0, if_stmt);
objc_enter_block ();
objc_catch_type = tree_cons (objc_catch_type, NULL_TREE, NULL_TREE);
}
else {
objc_build_extract_fragment ();
objc_exit_block ();
}
}
void
objc_build_catch_stmt (catch_expr)
tree catch_expr;
{
tree if_stmt, cond, func_params, prev_catch, var_name, var_type;
int catch_id;
#ifndef OBJCPLUS
catch_expr = TREE_PURPOSE (catch_expr);
#endif
var_name = TREE_VALUE (catch_expr);
var_type = TREE_VALUE (TREE_PURPOSE (catch_expr));
if (TREE_CODE (var_name) == INDIRECT_REF)
var_name = TREE_OPERAND (var_name, 0);
if (TREE_CODE (var_type) == TYPE_DECL || TREE_CODE (var_type) == POINTER_TYPE)
var_type = TREE_TYPE (var_type);
catch_id = (var_type == TREE_TYPE (id_type));
if (!flag_objc_exceptions)
fatal_error ("Use `-fobjc-exceptions' to enable Objective-C exception syntax");
if (!(catch_id || TYPED_OBJECT (var_type)))
fatal_error ("`@catch' parameter is not a known Objective-C class type");
for (prev_catch = objc_catch_type; TREE_VALUE (prev_catch);
prev_catch = TREE_CHAIN (prev_catch))
{
if (TREE_VALUE (prev_catch) == TREE_TYPE (id_type))
{
warning ("Exception already handled by preceding `@catch(id)'");
break;
}
else if (!catch_id
&& objc_comptypes (TREE_VALUE (prev_catch), var_type, 0) == 1)
warning ("Exception of type `%s *' already handled by `@catch (%s *)'",
IDENTIFIER_POINTER (OBJC_TYPE_NAME (var_type)),
IDENTIFIER_POINTER (OBJC_TYPE_NAME (TREE_VALUE (prev_catch))));
}
objc_catch_type = tree_cons (NULL_TREE, var_type, objc_catch_type);
objc_exit_block ();
c_finish_then ();
c_expand_start_else ();
catch_count_stack->val++;
if_stmt = c_begin_if_stmt ();
if_nesting_count++;
if (catch_id)
cond = integer_one_node;
else
{
cond = get_class_reference (OBJC_TYPE_NAME (var_type));
func_params = tree_cons (NULL_TREE, cond,
tree_cons (NULL_TREE,
TREE_VALUE (objc_caught_exception),
NULL_TREE));
assemble_external (objc_exception_match_decl);
cond = build_function_call (objc_exception_match_decl, func_params);
}
c_expand_start_cond (c_common_truthvalue_conversion (cond),
0, if_stmt);
objc_enter_block ();
objc_declare_variable (RID_REGISTER, var_name,
build_pointer_type (var_type),
TREE_VALUE (objc_caught_exception));
}
void
objc_build_catch_epilogue ()
{
objc_exit_block ();
c_finish_then ();
c_expand_start_else ();
objc_enter_block ();
c_expand_expr_stmt
(build_modify_expr
(TREE_VALUE (objc_rethrow_exception),
NOP_EXPR,
TREE_VALUE (objc_caught_exception)));
objc_build_try_exit_fragment ();
objc_exit_block ();
while (catch_count_stack->val--) {
c_finish_else ();
c_expand_end_cond ();
if_nesting_count--;
}
val_stack_pop (&catch_count_stack);
objc_caught_exception = TREE_CHAIN (objc_caught_exception);
objc_build_extract_fragment ();
objc_exit_block ();
c_finish_else ();
c_expand_end_cond ();
if_nesting_count--;
objc_exit_block ();
while (TREE_VALUE (objc_catch_type))
objc_catch_type = TREE_CHAIN (objc_catch_type);
objc_catch_type = TREE_PURPOSE (objc_catch_type);
}
tree
objc_build_finally_prologue ()
{
tree blk = objc_enter_block ();
tree if_stmt = c_begin_if_stmt ();
if_nesting_count++;
c_expand_start_cond (c_common_truthvalue_conversion
(build_unary_op
(TRUTH_NOT_EXPR, TREE_VALUE (objc_rethrow_exception), 0)),
0, if_stmt);
objc_enter_block ();
objc_build_try_exit_fragment ();
objc_exit_block ();
c_finish_then ();
c_expand_end_cond ();
if_nesting_count--;
return blk;
}
tree
objc_build_finally_epilogue ()
{
tree if_stmt = c_begin_if_stmt ();
if_nesting_count++;
c_expand_start_cond (c_common_truthvalue_conversion (TREE_VALUE (objc_rethrow_exception)),
0, if_stmt);
objc_enter_block ();
objc_build_throw_stmt (TREE_VALUE (objc_rethrow_exception));
objc_exit_block ();
c_finish_then ();
c_expand_end_cond ();
if_nesting_count--;
objc_exit_block ();
objc_rethrow_exception = TREE_CHAIN (objc_rethrow_exception);
objc_stack_exception_data = TREE_CHAIN (objc_stack_exception_data);
val_stack_pop (&exc_binding_stack);
return objc_exit_block ();
}
tree
objc_build_try_catch_finally_stmt (has_catch, has_finally)
int has_catch, has_finally;
{
tree outer_blk = objc_build_finally_epilogue ();
tree prec_stmt = TREE_CHAIN (TREE_CHAIN (COMPOUND_BODY (outer_blk)));
tree try_catch_blk = TREE_CHAIN (prec_stmt), try_catch_expr;
tree finally_blk = TREE_CHAIN (try_catch_blk), finally_expr;
tree succ_stmt = TREE_CHAIN (finally_blk);
tree try_finally_stmt, try_finally_expr;
if (!flag_objc_exceptions)
fatal_error ("Use `-fobjc-exceptions' to enable Objective-C exception syntax");
if (!has_catch && !has_finally)
error ("`@try' without `@catch' or `@finally'");
TREE_CHAIN (try_catch_blk) = TREE_CHAIN (finally_blk) = NULL_TREE;
try_catch_expr = build1 (STMT_EXPR, void_type_node, try_catch_blk);
TREE_SIDE_EFFECTS (try_catch_expr) = 1;
finally_expr = build1 (STMT_EXPR, void_type_node, finally_blk);
TREE_SIDE_EFFECTS (finally_expr) = 1;
try_finally_expr = build (TRY_FINALLY_EXPR, void_type_node, try_catch_expr,
finally_expr);
TREE_SIDE_EFFECTS (try_finally_expr) = 1;
try_finally_stmt = build_stmt (EXPR_STMT, try_finally_expr);
TREE_CHAIN (prec_stmt) = try_finally_stmt;
TREE_CHAIN (try_finally_stmt) = succ_stmt;
return outer_blk;
}
void
objc_build_synchronized_prologue (sync_expr)
tree sync_expr;
{
tree func_params;
if (!flag_objc_exceptions)
fatal_error ("Use `-fobjc-exceptions' to enable Objective-C exception syntax");
objc_enter_block ();
objc_eval_once = tree_cons (NULL_TREE,
objc_declare_variable (RID_AUTO, get_identifier (UTAG_EVALONCE_VAR),
id_type,
sync_expr),
objc_eval_once);
objc_build_try_prologue ();
objc_enter_block ();
func_params = tree_cons (NULL_TREE, TREE_VALUE (objc_eval_once),
NULL_TREE);
assemble_external (objc_sync_enter_decl);
c_expand_expr_stmt (build_function_call
(objc_sync_enter_decl, func_params));
}
tree
objc_build_synchronized_epilogue ()
{
tree func_params;
objc_exit_block ();
objc_build_try_epilogue (0);
objc_build_finally_prologue ();
func_params = tree_cons (NULL_TREE, TREE_VALUE (objc_eval_once),
NULL_TREE);
assemble_external (objc_sync_exit_decl);
c_expand_expr_stmt (build_function_call
(objc_sync_exit_decl, func_params));
objc_build_try_catch_finally_stmt (0, 1);
return objc_exit_block ();
}
#ifdef TARGET_POWERPC
#define _JBLEN (26 + 36 + 129 + 1)
#else
#define _JBLEN 18
#endif
static void
build_objc_exception_stuff ()
{
tree field_decl, field_decl_chain, index, temp_type;
enum debug_info_type save_write_symbols = write_symbols;
const struct gcc_debug_hooks *save_hooks = debug_hooks;
write_symbols = NO_DEBUG;
debug_hooks = &do_nothing_debug_hooks;
objc_exception_data_template
= start_struct (RECORD_TYPE, get_identifier (UTAG_EXCDATA));
index = build_index_type (build_int_2 (_JBLEN - 1, 0));
field_decl = create_builtin_decl (FIELD_DECL,
build_array_type (integer_type_node, index),
"buf");
field_decl_chain = field_decl;
index = build_index_type (build_int_2 (4 - 1, 0));
field_decl = create_builtin_decl (FIELD_DECL,
build_array_type (ptr_type_node, index),
"pointers");
chainon (field_decl_chain, field_decl);
finish_struct (objc_exception_data_template, field_decl_chain, NULL_TREE);
temp_type = build_function_type (integer_type_node, NULL_TREE);
objc_setjmp_decl
= builtin_function (TAG_SETJMP, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
temp_type = build_function_type (id_type,
tree_cons (NULL_TREE,
build_pointer_type (objc_exception_data_template),
OBJC_VOID_AT_END));
objc_exception_extract_decl
= builtin_function (TAG_EXCEPTIONEXTRACT, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
temp_type = build_function_type (void_type_node,
tree_cons (NULL_TREE,
build_pointer_type (objc_exception_data_template),
OBJC_VOID_AT_END));
objc_exception_try_enter_decl
= builtin_function (TAG_EXCEPTIONTRYENTER, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
objc_exception_try_exit_decl
= builtin_function (TAG_EXCEPTIONTRYEXIT, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
temp_type = build_function_type (void_type_node,
tree_cons (NULL_TREE, id_type,
OBJC_VOID_AT_END));
objc_exception_throw_decl
= builtin_function (TAG_EXCEPTIONTHROW, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
TYPE_VOLATILE (objc_exception_throw_decl) = 1;
DECL_ATTRIBUTES (objc_exception_throw_decl)
= tree_cons (get_identifier ("noreturn"), NULL_TREE, NULL_TREE);
objc_sync_enter_decl
= builtin_function (TAG_SYNCENTER, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
objc_sync_exit_decl
= builtin_function (TAG_SYNCEXIT, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
temp_type = build_function_type (integer_type_node,
tree_cons (NULL_TREE, id_type,
tree_cons (NULL_TREE, id_type,
OBJC_VOID_AT_END)));
objc_exception_match_decl
= builtin_function (TAG_EXCEPTIONMATCH, temp_type, 0, NOT_BUILT_IN, NULL, NULL_TREE);
write_symbols = save_write_symbols;
debug_hooks = save_hooks;
}
static tree
build_private_template (class)
tree class;
{
tree ivar_context;
if (CLASS_STATIC_TEMPLATE (class))
{
uprivate_record = CLASS_STATIC_TEMPLATE (class);
ivar_context = TYPE_FIELDS (CLASS_STATIC_TEMPLATE (class));
}
else
{
uprivate_record = start_struct (RECORD_TYPE, CLASS_NAME (class));
ivar_context = get_class_ivars (class);
finish_struct (uprivate_record, ivar_context, NULL_TREE);
CLASS_STATIC_TEMPLATE (class) = uprivate_record;
TREE_STATIC_TEMPLATE (uprivate_record) = 1;
}
instance_type
= groktypename (build_tree_list (build_tree_list (NULL_TREE,
uprivate_record),
build1 (INDIRECT_REF, NULL_TREE,
NULL_TREE)));
return ivar_context;
}
static tree
build_protocol_template ()
{
tree decl_specs, field_decl, field_decl_chain;
tree template;
template = start_struct (RECORD_TYPE, get_identifier (UTAG_PROTOCOL));
decl_specs = build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE,
get_identifier (UTAG_CLASS)));
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("isa"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_name"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, template);
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_list"));
field_decl = build1 (INDIRECT_REF, NULL_TREE, field_decl);
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs
= build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_PROTOTYPE_LIST)));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("instance_methods"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs
= build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_PROTOTYPE_LIST)));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class_methods"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
return finish_struct (template, field_decl_chain, NULL_TREE);
}
static tree
build_descriptor_table_initializer (type, entries)
tree type;
tree entries;
{
tree initlist = NULL_TREE;
do
{
tree eltlist = NULL_TREE;
eltlist
= tree_cons (NULL_TREE,
build_selector (METHOD_SEL_NAME (entries)), NULL_TREE);
eltlist
= tree_cons (NULL_TREE,
add_objc_string (METHOD_ENCODING (entries),
meth_var_types),
eltlist);
initlist
= tree_cons (NULL_TREE,
build_constructor (type, nreverse (eltlist)), initlist);
entries = TREE_CHAIN (entries);
}
while (entries);
return build_constructor (build_array_type (type, 0), nreverse (initlist));
}
static tree
build_method_prototype_list_template (list_type, size)
tree list_type;
int size;
{
tree objc_ivar_list_record;
tree decl_specs, field_decl, field_decl_chain;
objc_ivar_list_record = start_struct (RECORD_TYPE, NULL_TREE);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
field_decl = get_identifier ("method_count");
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, list_type);
field_decl = build_nt (ARRAY_REF, get_identifier ("method_list"),
build_int_2 (size, 0));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_ivar_list_record, field_decl_chain, NULL_TREE);
return objc_ivar_list_record;
}
static tree
build_method_prototype_template ()
{
tree proto_record;
tree decl_specs, field_decl, field_decl_chain;
proto_record
= start_struct (RECORD_TYPE, get_identifier (UTAG_METHOD_PROTOTYPE));
decl_specs = tree_cons (NULL_TREE, xref_tag (RECORD_TYPE,
get_identifier (TAG_SELECTOR)), NULL_TREE);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("_cmd"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], NULL_TREE);
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("method_types"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (proto_record, field_decl_chain, NULL_TREE);
return proto_record;
}
static tree
encode_method_prototype (method_decl, func_decl)
tree method_decl;
tree func_decl;
{
tree parms;
int parm_offset = 0, i;
tree user_args;
char buf[40];
tree result;
encode_type_qualifiers (TREE_PURPOSE (TREE_TYPE (method_decl)));
encode_type (TREE_TYPE (TREE_TYPE (func_decl)),
obstack_object_size (&util_obstack),
OBJC_ENCODE_INLINE_DEFS);
for (parms = DECL_ARGUMENTS (func_decl); parms;
parms = TREE_CHAIN (parms))
{
parm_offset += int_size_in_bytes
(TREE_CODE (TREE_TYPE (parms)) == INTEGER_TYPE
? integer_type_node
: TREE_TYPE (parms));
}
sprintf (buf, "%d", parm_offset);
obstack_grow (&util_obstack, buf, strlen (buf));
user_args = METHOD_SEL_ARGS (method_decl);
for (parms = DECL_ARGUMENTS (func_decl), i = 0, parm_offset = 0; parms;
parms = TREE_CHAIN (parms), i++)
{
if (i > 1)
{
encode_type_qualifiers (TREE_PURPOSE (TREE_TYPE (user_args)));
user_args = TREE_CHAIN (user_args);
}
encode_type (TREE_TYPE (parms),
obstack_object_size (&util_obstack),
OBJC_ENCODE_INLINE_DEFS);
sprintf (buf, "%d", parm_offset);
parm_offset += int_size_in_bytes
(TREE_CODE (TREE_TYPE (parms)) == INTEGER_TYPE
? integer_type_node
: TREE_TYPE (parms));
if (!flag_next_runtime
&& GET_CODE (DECL_INCOMING_RTL (parms)) == REG)
obstack_1grow (&util_obstack, '+');
obstack_grow (&util_obstack, buf, strlen (buf));
}
obstack_1grow (&util_obstack, '\0');
result = get_identifier (obstack_finish (&util_obstack));
obstack_free (&util_obstack, util_firstobj);
return result;
}
static tree
generate_descriptor_table (type, name, size, list, proto)
tree type;
const char *name;
int size;
tree list;
tree proto;
{
tree sc_spec, decl_specs, decl, initlist;
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
decl = start_decl (synth_id_with_class_suffix (name, proto),
decl_specs, 1, NULL_TREE);
DECL_CONTEXT (decl) = NULL_TREE;
initlist = build_tree_list (NULL_TREE, build_int_2 (size, 0));
initlist = tree_cons (NULL_TREE, list, initlist);
finish_decl (decl, build_constructor (type, nreverse (initlist)),
NULL_TREE);
return decl;
}
static void
generate_method_descriptors (protocol)
tree protocol;
{
tree initlist, chain, method_list_template;
tree cast, variable_length_type;
int size;
if (!objc_method_prototype_template)
objc_method_prototype_template = build_method_prototype_template ();
cast = build_tree_list (build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_PROTOTYPE_LIST))),
NULL_TREE);
variable_length_type = groktypename (cast);
chain = PROTOCOL_CLS_METHODS (protocol);
if (chain)
{
size = list_length (chain);
method_list_template
= build_method_prototype_list_template (objc_method_prototype_template,
size);
initlist
= build_descriptor_table_initializer (objc_method_prototype_template,
chain);
UOBJC_CLASS_METHODS_decl
= generate_descriptor_table (method_list_template,
"_OBJC_PROTOCOL_CLASS_METHODS",
size, initlist, protocol);
TREE_TYPE (UOBJC_CLASS_METHODS_decl) = variable_length_type;
}
else
UOBJC_CLASS_METHODS_decl = 0;
chain = PROTOCOL_NST_METHODS (protocol);
if (chain)
{
size = list_length (chain);
method_list_template
= build_method_prototype_list_template (objc_method_prototype_template,
size);
initlist
= build_descriptor_table_initializer (objc_method_prototype_template,
chain);
UOBJC_INSTANCE_METHODS_decl
= generate_descriptor_table (method_list_template,
"_OBJC_PROTOCOL_INSTANCE_METHODS",
size, initlist, protocol);
TREE_TYPE (UOBJC_INSTANCE_METHODS_decl) = variable_length_type;
}
else
UOBJC_INSTANCE_METHODS_decl = 0;
}
static GTY(()) int build_tmp_function_decl_xxx;
static tree
build_tmp_function_decl ()
{
tree decl_specs, expr_decl, parms;
char buffer[80];
pushlevel (0);
synth_self_and_ucmd_args ();
parms = get_parm_info (0);
poplevel (0, 0, 0);
decl_specs = build_tree_list (NULL_TREE, objc_object_reference);
sprintf (buffer, "__objc_tmp_%x", build_tmp_function_decl_xxx++);
expr_decl = build_nt (CALL_EXPR, get_identifier (buffer), parms, NULL_TREE);
expr_decl = build1 (INDIRECT_REF, NULL_TREE, expr_decl);
return define_decl (expr_decl, decl_specs);
}
static void
hack_method_prototype (nst_methods, tmp_decl)
tree nst_methods;
tree tmp_decl;
{
tree parms;
tree parm;
#ifdef OBJCPLUS
extern tree last_function_parms;
#endif
TREE_SET_CODE (nst_methods, CLASS_METHOD_DECL);
start_method_def (nst_methods);
TREE_SET_CODE (nst_methods, INSTANCE_METHOD_DECL);
if (METHOD_ADD_ARGS (nst_methods) == objc_ellipsis_node)
parms = get_parm_info (0);
else
parms = get_parm_info (1);
poplevel (0, 0, 0);
#ifdef OBJCPLUS
grokparms (TREE_PURPOSE (parms));
DECL_ARGUMENTS (tmp_decl) = last_function_parms;
#else
DECL_ARGUMENTS (tmp_decl) = TREE_PURPOSE (parms);
#endif
if (current_function_decl)
abort ();
current_function_decl = tmp_decl;
{
tree restype = TREE_TYPE (TREE_TYPE (tmp_decl));
if (TREE_CODE (restype) == INTEGER_TYPE
&& TYPE_PRECISION (restype) < TYPE_PRECISION (integer_type_node))
restype = integer_type_node;
DECL_RESULT (tmp_decl) = build_decl (RESULT_DECL, 0, restype);
}
for (parm = DECL_ARGUMENTS (tmp_decl); parm; parm = TREE_CHAIN (parm))
DECL_CONTEXT (parm) = tmp_decl;
init_function_start (tmp_decl, "objc-act", 0);
assign_parms (tmp_decl);
TREE_TYPE (TREE_TYPE (tmp_decl)) = groktypename (TREE_TYPE (nst_methods));
current_function_decl = NULL;
}
static void
generate_protocol_references (plist)
tree plist;
{
tree lproto;
for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto))
{
tree proto = TREE_VALUE (lproto);
if (TREE_CODE (proto) == PROTOCOL_INTERFACE_TYPE
&& PROTOCOL_NAME (proto))
{
if (! PROTOCOL_FORWARD_DECL (proto))
build_protocol_reference (proto);
if (PROTOCOL_LIST (proto))
generate_protocol_references (PROTOCOL_LIST (proto));
}
}
}
static void
generate_protocols ()
{
tree p, tmp_decl, encoding;
tree sc_spec, decl_specs, decl;
tree initlist, protocol_name_expr, refs_decl, refs_expr;
tree cast_type2;
tmp_decl = build_tmp_function_decl ();
if (! objc_protocol_template)
objc_protocol_template = build_protocol_template ();
for (p = protocol_chain; p; p = TREE_CHAIN (p))
if (PROTOCOL_FORWARD_DECL (p) && PROTOCOL_LIST (p))
generate_protocol_references (PROTOCOL_LIST (p));
for (p = protocol_chain; p; p = TREE_CHAIN (p))
{
tree nst_methods = PROTOCOL_NST_METHODS (p);
tree cls_methods = PROTOCOL_CLS_METHODS (p);
if (! PROTOCOL_FORWARD_DECL (p))
continue;
add_class_reference (get_identifier (PROTOCOL_OBJECT_CLASS_NAME));
while (nst_methods)
{
if (! METHOD_ENCODING (nst_methods))
{
hack_method_prototype (nst_methods, tmp_decl);
encoding = encode_method_prototype (nst_methods, tmp_decl);
METHOD_ENCODING (nst_methods) = encoding;
}
nst_methods = TREE_CHAIN (nst_methods);
}
while (cls_methods)
{
if (! METHOD_ENCODING (cls_methods))
{
hack_method_prototype (cls_methods, tmp_decl);
encoding = encode_method_prototype (cls_methods, tmp_decl);
METHOD_ENCODING (cls_methods) = encoding;
}
cls_methods = TREE_CHAIN (cls_methods);
}
generate_method_descriptors (p);
if (PROTOCOL_LIST (p))
refs_decl = generate_protocol_list (p);
else
refs_decl = 0;
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC],
NULL_TREE);
decl_specs = tree_cons (NULL_TREE, objc_protocol_template, sc_spec);
decl = start_decl (synth_id_with_class_suffix ("_OBJC_PROTOCOL", p),
decl_specs, 1, NULL_TREE);
DECL_CONTEXT (decl) = NULL_TREE;
protocol_name_expr = add_objc_string (PROTOCOL_NAME (p), class_names);
if (refs_decl)
{
cast_type2
= groktypename
(build_tree_list (build_tree_list (NULL_TREE,
objc_protocol_template),
build1 (INDIRECT_REF, NULL_TREE,
build1 (INDIRECT_REF, NULL_TREE,
NULL_TREE))));
refs_expr = build_unary_op (ADDR_EXPR, refs_decl, 0);
TREE_TYPE (refs_expr) = cast_type2;
}
else
refs_expr = build_int_2 (0, 0);
initlist = build_protocol_initializer (TREE_TYPE (decl),
protocol_name_expr, refs_expr,
UOBJC_INSTANCE_METHODS_decl,
UOBJC_CLASS_METHODS_decl);
finish_decl (decl, initlist, NULL_TREE);
TREE_USED (decl) = 1;
}
}
static tree
build_protocol_initializer (type, protocol_name, protocol_list,
instance_methods, class_methods)
tree type;
tree protocol_name;
tree protocol_list;
tree instance_methods;
tree class_methods;
{
tree initlist = NULL_TREE, expr;
tree cast_type;
cast_type = groktypename
(build_tree_list
(build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_CLASS))),
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE)));
expr = build_int_2 (PROTOCOL_VERSION, 0);
TREE_TYPE (expr) = cast_type;
initlist = tree_cons (NULL_TREE, expr, initlist);
initlist = tree_cons (NULL_TREE, protocol_name, initlist);
initlist = tree_cons (NULL_TREE, protocol_list, initlist);
if (!instance_methods)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
expr = build_unary_op (ADDR_EXPR, instance_methods, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
if (!class_methods)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
expr = build_unary_op (ADDR_EXPR, class_methods, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
return build_constructor (type, nreverse (initlist));
}
static void
build_category_template ()
{
tree decl_specs, field_decl, field_decl_chain;
objc_category_template = start_struct (RECORD_TYPE,
get_identifier (UTAG_CATEGORY));
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("category_name"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class_name"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_LIST)));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("instance_methods"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_LIST)));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class_methods"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_PROTOCOL)));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_list"));
field_decl = build1 (INDIRECT_REF, NULL_TREE, field_decl);
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_category_template, field_decl_chain, NULL_TREE);
}
static void
build_selector_template ()
{
tree decl_specs, field_decl, field_decl_chain;
objc_selector_template
= start_struct (RECORD_TYPE, get_identifier (UTAG_SELECTOR));
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_VOID]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("sel_id"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("sel_type"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_selector_template, field_decl_chain, NULL_TREE);
}
static void
build_class_template ()
{
tree decl_specs, field_decl, field_decl_chain;
objc_class_template
= start_struct (RECORD_TYPE, get_identifier (UTAG_CLASS));
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("isa"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("super_class"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("name"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
field_decl = get_identifier ("version");
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
field_decl = get_identifier ("info");
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_LONG]);
field_decl = get_identifier ("instance_size");
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_IVAR_LIST)));
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("ivars"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_LIST)));
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("methods"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
if (flag_next_runtime)
{
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier ("objc_cache")));
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("cache"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
}
else
{
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier ("sarray")));
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("dtable"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("subclass_list"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, objc_class_template);
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("sibling_class"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
}
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_PROTOCOL)));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("protocol_list"));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, field_decl);
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
if (flag_next_runtime)
{
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_VOID]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("sel_id"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
}
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_VOID]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("gc_object_type"));
field_decl
= grokfield (input_filename, lineno, field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_class_template, field_decl_chain, NULL_TREE);
}
static void
synth_forward_declarations ()
{
tree an_id;
UOBJC_CLASS_decl = build_metadata_decl ("_OBJC_CLASS",
objc_class_template);
UOBJC_METACLASS_decl = build_metadata_decl ("_OBJC_METACLASS",
objc_class_template);
an_id = get_identifier ("super_class");
ucls_super_ref = build_component_ref (UOBJC_CLASS_decl, an_id);
uucls_super_ref = build_component_ref (UOBJC_METACLASS_decl, an_id);
}
static void
error_with_ivar (message, decl, rawdecl)
const char *message;
tree decl;
tree rawdecl;
{
diagnostic_count_diagnostic (global_dc, DK_ERROR);
diagnostic_report_current_function (global_dc);
error_with_file_and_line (DECL_SOURCE_FILE (decl),
DECL_SOURCE_LINE (decl),
"%s `%s'",
message, gen_declaration (rawdecl, errbuf));
}
static void
check_ivars (inter, imp)
tree inter;
tree imp;
{
tree intdecls = CLASS_IVARS (inter);
tree impdecls = CLASS_IVARS (imp);
tree rawintdecls = CLASS_RAW_IVARS (inter);
tree rawimpdecls = CLASS_RAW_IVARS (imp);
while (1)
{
tree t1, t2;
if (intdecls == 0 && impdecls == 0)
break;
if (intdecls == 0 || impdecls == 0)
{
error ("inconsistent instance variable specification");
break;
}
t1 = TREE_TYPE (intdecls); t2 = TREE_TYPE (impdecls);
if (!comptypes (t1, t2))
{
if (DECL_NAME (intdecls) == DECL_NAME (impdecls))
{
error_with_ivar ("conflicting instance variable type",
impdecls, rawimpdecls);
error_with_ivar ("previous declaration of",
intdecls, rawintdecls);
}
else
{
error ("inconsistent instance variable specification");
break;
}
}
else if (DECL_NAME (intdecls) != DECL_NAME (impdecls))
{
error_with_ivar ("conflicting instance variable name",
impdecls, rawimpdecls);
error_with_ivar ("previous declaration of",
intdecls, rawintdecls);
}
intdecls = TREE_CHAIN (intdecls);
impdecls = TREE_CHAIN (impdecls);
rawintdecls = TREE_CHAIN (rawintdecls);
rawimpdecls = TREE_CHAIN (rawimpdecls);
}
}
static void
build_super_template ()
{
tree decl_specs, field_decl, field_decl_chain;
enum debug_info_type save_write_symbols = write_symbols;
const struct gcc_debug_hooks *save_hooks = debug_hooks;
write_symbols = NO_DEBUG;
debug_hooks = &do_nothing_debug_hooks;
objc_super_template = start_struct (RECORD_TYPE, get_identifier (UTAG_SUPER));
decl_specs = build_tree_list (NULL_TREE, objc_object_reference);
field_decl = get_identifier ("self");
field_decl = build1 (INDIRECT_REF, NULL_TREE, field_decl);
field_decl = grokfield (input_filename, lineno,
field_decl, decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = get_identifier (UTAG_CLASS);
decl_specs = build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE, decl_specs));
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("class"));
field_decl = grokfield (input_filename, lineno,
field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_super_template, field_decl_chain, NULL_TREE);
write_symbols = save_write_symbols;
debug_hooks = save_hooks;
}
static tree
build_ivar_template ()
{
tree objc_ivar_id, objc_ivar_record;
tree decl_specs, field_decl, field_decl_chain;
objc_ivar_id = get_identifier (UTAG_IVAR);
objc_ivar_record = start_struct (RECORD_TYPE, objc_ivar_id);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("ivar_name"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_CHAR]);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("ivar_type"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
field_decl = get_identifier ("ivar_offset");
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_ivar_record, field_decl_chain, NULL_TREE);
return objc_ivar_record;
}
static tree
build_ivar_list_template (list_type, size)
tree list_type;
int size;
{
tree objc_ivar_list_record;
tree decl_specs, field_decl, field_decl_chain;
objc_ivar_list_record = start_struct (RECORD_TYPE, NULL_TREE);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
field_decl = get_identifier ("ivar_count");
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, list_type);
field_decl = build_nt (ARRAY_REF, get_identifier ("ivar_list"),
build_int_2 (size, 0));
field_decl = grokfield (input_filename, lineno,
field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_ivar_list_record, field_decl_chain, NULL_TREE);
return objc_ivar_list_record;
}
static tree
build_method_list_template (list_type, size)
tree list_type;
int size;
{
tree objc_ivar_list_record;
tree decl_specs, field_decl, field_decl_chain;
objc_ivar_list_record = start_struct (RECORD_TYPE, NULL_TREE);
decl_specs
= build_tree_list
(NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_PROTOTYPE_LIST)));
field_decl
= build1 (INDIRECT_REF, NULL_TREE, get_identifier ("method_next"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_INT]);
field_decl = get_identifier ("method_count");
field_decl = grokfield (input_filename, lineno,
field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = build_tree_list (NULL_TREE, list_type);
field_decl = build_nt (ARRAY_REF, get_identifier ("method_list"),
build_int_2 (size, 0));
field_decl = grokfield (input_filename, lineno,
field_decl, decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (objc_ivar_list_record, field_decl_chain, NULL_TREE);
return objc_ivar_list_record;
}
static tree
build_ivar_list_initializer (type, field_decl)
tree type;
tree field_decl;
{
tree initlist = NULL_TREE;
do
{
tree ivar = NULL_TREE;
if (DECL_NAME (field_decl))
ivar = tree_cons (NULL_TREE,
add_objc_string (DECL_NAME (field_decl),
meth_var_names),
ivar);
else
ivar = tree_cons (NULL_TREE, build_int_2 (0, 0), ivar);
encode_field_decl (field_decl,
obstack_object_size (&util_obstack),
OBJC_ENCODE_DONT_INLINE_DEFS);
obstack_1grow (&util_obstack, 0);
ivar
= tree_cons
(NULL_TREE,
add_objc_string (get_identifier (obstack_finish (&util_obstack)),
meth_var_types),
ivar);
obstack_free (&util_obstack, util_firstobj);
ivar = tree_cons (NULL_TREE, byte_position (field_decl), ivar);
initlist = tree_cons (NULL_TREE,
build_constructor (type, nreverse (ivar)),
initlist);
do
field_decl = TREE_CHAIN (field_decl);
while (field_decl && TREE_CODE (field_decl) != FIELD_DECL);
}
while (field_decl);
return build_constructor (build_array_type (type, 0), nreverse (initlist));
}
static tree
generate_ivars_list (type, name, size, list)
tree type;
const char *name;
int size;
tree list;
{
tree sc_spec, decl_specs, decl, initlist;
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
decl = start_decl (synth_id_with_class_suffix (name, objc_implementation_context),
decl_specs, 1, NULL_TREE);
initlist = build_tree_list (NULL_TREE, build_int_2 (size, 0));
initlist = tree_cons (NULL_TREE, list, initlist);
finish_decl (decl,
build_constructor (TREE_TYPE (decl), nreverse (initlist)),
NULL_TREE);
return decl;
}
static int
ivar_list_length (t)
tree t;
{
int count = 0;
for (; t; t = TREE_CHAIN (t))
if (TREE_CODE (t) == FIELD_DECL)
++count;
return count;
}
static void
generate_ivar_lists ()
{
tree initlist, ivar_list_template, chain;
tree cast, variable_length_type;
int size;
generating_instance_variables = 1;
if (!objc_ivar_template)
objc_ivar_template = build_ivar_template ();
cast
= build_tree_list
(build_tree_list (NULL_TREE, xref_tag (RECORD_TYPE,
get_identifier (UTAG_IVAR_LIST))),
NULL_TREE);
variable_length_type = groktypename (cast);
if (CLASS_SUPER_NAME (implementation_template) == NULL_TREE
&& (chain = TYPE_FIELDS (objc_class_template)))
{
size = ivar_list_length (chain);
ivar_list_template = build_ivar_list_template (objc_ivar_template, size);
initlist = build_ivar_list_initializer (objc_ivar_template, chain);
UOBJC_CLASS_VARIABLES_decl
= generate_ivars_list (ivar_list_template, "_OBJC_CLASS_VARIABLES",
size, initlist);
TREE_TYPE (UOBJC_CLASS_VARIABLES_decl) = variable_length_type;
}
else
UOBJC_CLASS_VARIABLES_decl = 0;
chain = CLASS_IVARS (implementation_template);
if (chain)
{
size = ivar_list_length (chain);
ivar_list_template = build_ivar_list_template (objc_ivar_template, size);
initlist = build_ivar_list_initializer (objc_ivar_template, chain);
UOBJC_INSTANCE_VARIABLES_decl
= generate_ivars_list (ivar_list_template, "_OBJC_INSTANCE_VARIABLES",
size, initlist);
TREE_TYPE (UOBJC_INSTANCE_VARIABLES_decl) = variable_length_type;
}
else
UOBJC_INSTANCE_VARIABLES_decl = 0;
generating_instance_variables = 0;
}
static tree
build_dispatch_table_initializer (type, entries)
tree type;
tree entries;
{
tree initlist = NULL_TREE;
do
{
tree elemlist = NULL_TREE;
elemlist = tree_cons (NULL_TREE,
build_selector (METHOD_SEL_NAME (entries)),
NULL_TREE);
if (! METHOD_ENCODING (entries))
METHOD_ENCODING (entries) =
encode_method_prototype (entries, METHOD_DEFINITION (entries));
elemlist = tree_cons (NULL_TREE,
add_objc_string (METHOD_ENCODING (entries),
meth_var_types),
elemlist);
elemlist = tree_cons (NULL_TREE,
build_unary_op (ADDR_EXPR,
METHOD_DEFINITION (entries), 1),
elemlist);
initlist = tree_cons (NULL_TREE,
build_constructor (type, nreverse (elemlist)),
initlist);
entries = TREE_CHAIN (entries);
}
while (entries);
return build_constructor (build_array_type (type, 0), nreverse (initlist));
}
static tree
build_method_template ()
{
tree _SLT_record;
tree decl_specs, field_decl, field_decl_chain;
_SLT_record = start_struct (RECORD_TYPE, get_identifier (UTAG_METHOD));
decl_specs = tree_cons (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (TAG_SELECTOR)),
NULL_TREE);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("_cmd"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
field_decl_chain = field_decl;
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_CHAR], NULL_TREE);
field_decl = build1 (INDIRECT_REF, NULL_TREE,
get_identifier ("method_types"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
decl_specs = tree_cons (NULL_TREE, ridpointers[(int) RID_VOID], NULL_TREE);
field_decl = build1 (INDIRECT_REF, NULL_TREE, get_identifier ("_imp"));
field_decl = grokfield (input_filename, lineno, field_decl,
decl_specs, NULL_TREE);
chainon (field_decl_chain, field_decl);
finish_struct (_SLT_record, field_decl_chain, NULL_TREE);
return _SLT_record;
}
static tree
generate_dispatch_table (type, name, size, list)
tree type;
const char *name;
int size;
tree list;
{
tree sc_spec, decl_specs, decl, initlist;
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
decl = start_decl (synth_id_with_class_suffix (name, objc_implementation_context),
decl_specs, 1, NULL_TREE);
initlist = build_tree_list (NULL_TREE, build_int_2 (0, 0));
initlist = tree_cons (NULL_TREE, build_int_2 (size, 0), initlist);
initlist = tree_cons (NULL_TREE, list, initlist);
finish_decl (decl,
build_constructor (TREE_TYPE (decl), nreverse (initlist)),
NULL_TREE);
return decl;
}
static void
generate_dispatch_tables ()
{
tree initlist, chain, method_list_template;
tree cast, variable_length_type;
int size;
if (!objc_method_template)
objc_method_template = build_method_template ();
cast
= build_tree_list
(build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_METHOD_LIST))),
NULL_TREE);
variable_length_type = groktypename (cast);
chain = CLASS_CLS_METHODS (objc_implementation_context);
if (chain)
{
size = list_length (chain);
method_list_template
= build_method_list_template (objc_method_template, size);
initlist
= build_dispatch_table_initializer (objc_method_template, chain);
UOBJC_CLASS_METHODS_decl
= generate_dispatch_table (method_list_template,
((TREE_CODE (objc_implementation_context)
== CLASS_IMPLEMENTATION_TYPE)
? "_OBJC_CLASS_METHODS"
: "_OBJC_CATEGORY_CLASS_METHODS"),
size, initlist);
TREE_TYPE (UOBJC_CLASS_METHODS_decl) = variable_length_type;
}
else
UOBJC_CLASS_METHODS_decl = 0;
chain = CLASS_NST_METHODS (objc_implementation_context);
if (chain)
{
size = list_length (chain);
method_list_template
= build_method_list_template (objc_method_template, size);
initlist
= build_dispatch_table_initializer (objc_method_template, chain);
if (TREE_CODE (objc_implementation_context) == CLASS_IMPLEMENTATION_TYPE)
UOBJC_INSTANCE_METHODS_decl
= generate_dispatch_table (method_list_template,
"_OBJC_INSTANCE_METHODS",
size, initlist);
else
UOBJC_INSTANCE_METHODS_decl
= generate_dispatch_table (method_list_template,
"_OBJC_CATEGORY_INSTANCE_METHODS",
size, initlist);
TREE_TYPE (UOBJC_INSTANCE_METHODS_decl) = variable_length_type;
}
else
UOBJC_INSTANCE_METHODS_decl = 0;
}
static tree
generate_protocol_list (i_or_p)
tree i_or_p;
{
tree initlist, decl_specs, sc_spec;
tree refs_decl, expr_decl, lproto, e, plist;
tree cast_type;
int size = 0;
if (TREE_CODE (i_or_p) == CLASS_INTERFACE_TYPE
|| TREE_CODE (i_or_p) == CATEGORY_INTERFACE_TYPE)
plist = CLASS_PROTOCOL_LIST (i_or_p);
else if (TREE_CODE (i_or_p) == PROTOCOL_INTERFACE_TYPE)
plist = PROTOCOL_LIST (i_or_p);
else
abort ();
cast_type = groktypename
(build_tree_list
(build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_PROTOCOL))),
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE)));
for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto))
if (TREE_CODE (TREE_VALUE (lproto)) == PROTOCOL_INTERFACE_TYPE
&& PROTOCOL_FORWARD_DECL (TREE_VALUE (lproto)))
size++;
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), NULL_TREE);
e = build_int_2 (size, 0);
TREE_TYPE (e) = cast_type;
initlist = tree_cons (NULL_TREE, e, initlist);
for (lproto = plist; lproto; lproto = TREE_CHAIN (lproto))
{
tree pval = TREE_VALUE (lproto);
if (TREE_CODE (pval) == PROTOCOL_INTERFACE_TYPE
&& PROTOCOL_FORWARD_DECL (pval))
{
e = build_unary_op (ADDR_EXPR, PROTOCOL_FORWARD_DECL (pval), 0);
initlist = tree_cons (NULL_TREE, e, initlist);
}
}
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, xref_tag (RECORD_TYPE,
get_identifier (UTAG_PROTOCOL)),
sc_spec);
if (TREE_CODE (i_or_p) == PROTOCOL_INTERFACE_TYPE)
expr_decl = build_nt (ARRAY_REF,
synth_id_with_class_suffix ("_OBJC_PROTOCOL_REFS",
i_or_p),
build_int_2 (size + 2, 0));
else if (TREE_CODE (i_or_p) == CLASS_INTERFACE_TYPE)
expr_decl = build_nt (ARRAY_REF,
synth_id_with_class_suffix ("_OBJC_CLASS_PROTOCOLS",
i_or_p),
build_int_2 (size + 2, 0));
else if (TREE_CODE (i_or_p) == CATEGORY_INTERFACE_TYPE)
expr_decl
= build_nt (ARRAY_REF,
synth_id_with_class_suffix ("_OBJC_CATEGORY_PROTOCOLS",
i_or_p),
build_int_2 (size + 2, 0));
else
abort ();
expr_decl = build1 (INDIRECT_REF, NULL_TREE, expr_decl);
refs_decl = start_decl (expr_decl, decl_specs, 1, NULL_TREE);
DECL_CONTEXT (refs_decl) = NULL_TREE;
finish_decl (refs_decl, build_constructor (TREE_TYPE (refs_decl),
nreverse (initlist)),
NULL_TREE);
return refs_decl;
}
static tree
build_category_initializer (type, cat_name, class_name,
instance_methods, class_methods, protocol_list)
tree type;
tree cat_name;
tree class_name;
tree instance_methods;
tree class_methods;
tree protocol_list;
{
tree initlist = NULL_TREE, expr;
initlist = tree_cons (NULL_TREE, cat_name, initlist);
initlist = tree_cons (NULL_TREE, class_name, initlist);
if (!instance_methods)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
expr = build_unary_op (ADDR_EXPR, instance_methods, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
if (!class_methods)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
expr = build_unary_op (ADDR_EXPR, class_methods, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
if (!protocol_list)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
tree cast_type2 = groktypename
(build_tree_list
(build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_PROTOCOL))),
build1 (INDIRECT_REF, NULL_TREE,
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE))));
expr = build_unary_op (ADDR_EXPR, protocol_list, 0);
TREE_TYPE (expr) = cast_type2;
initlist = tree_cons (NULL_TREE, expr, initlist);
}
return build_constructor (type, nreverse (initlist));
}
static tree
build_shared_structure_initializer (type, isa, super, name, size, status,
dispatch_table, ivar_list, protocol_list)
tree type;
tree isa;
tree super;
tree name;
tree size;
int status;
tree dispatch_table;
tree ivar_list;
tree protocol_list;
{
tree initlist = NULL_TREE, expr;
initlist = tree_cons (NULL_TREE, isa, initlist);
initlist = tree_cons (NULL_TREE, super, initlist);
initlist = tree_cons (NULL_TREE, default_conversion (name), initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (status, 0), initlist);
initlist = tree_cons (NULL_TREE, size, initlist);
if (!ivar_list)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
expr = build_unary_op (ADDR_EXPR, ivar_list, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
if (!dispatch_table)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
expr = build_unary_op (ADDR_EXPR, dispatch_table, 0);
initlist = tree_cons (NULL_TREE, expr, initlist);
}
if (flag_next_runtime)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
}
if (! protocol_list)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
else
{
tree cast_type2
= groktypename
(build_tree_list
(build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (UTAG_PROTOCOL))),
build1 (INDIRECT_REF, NULL_TREE,
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE))));
expr = build_unary_op (ADDR_EXPR, protocol_list, 0);
TREE_TYPE (expr) = cast_type2;
initlist = tree_cons (NULL_TREE, expr, initlist);
}
if (flag_next_runtime)
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
initlist = tree_cons (NULL_TREE, build_int_2 (0, 0), initlist);
return build_constructor (type, nreverse (initlist));
}
static void
generate_category (cat)
tree cat;
{
tree sc_spec, decl_specs, decl;
tree initlist, cat_name_expr, class_name_expr;
tree protocol_decl, category;
add_class_reference (CLASS_NAME (cat));
cat_name_expr = add_objc_string (CLASS_SUPER_NAME (cat), class_names);
class_name_expr = add_objc_string (CLASS_NAME (cat), class_names);
category = CLASS_CATEGORY_LIST (implementation_template);
while (category)
{
if (CLASS_SUPER_NAME (cat) == CLASS_SUPER_NAME (category))
break;
category = CLASS_CATEGORY_LIST (category);
}
if (category && CLASS_PROTOCOL_LIST (category))
{
generate_protocol_references (CLASS_PROTOCOL_LIST (category));
protocol_decl = generate_protocol_list (category);
}
else
protocol_decl = 0;
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
decl_specs = tree_cons (NULL_TREE, objc_category_template, sc_spec);
decl = start_decl (synth_id_with_class_suffix ("_OBJC_CATEGORY",
objc_implementation_context),
decl_specs, 1, NULL_TREE);
initlist = build_category_initializer (TREE_TYPE (decl),
cat_name_expr, class_name_expr,
UOBJC_INSTANCE_METHODS_decl,
UOBJC_CLASS_METHODS_decl,
protocol_decl);
finish_decl (decl, initlist, NULL_TREE);
}
static void
generate_shared_structures ()
{
tree sc_spec, decl_specs, decl;
tree name_expr, super_expr, root_expr;
tree my_root_id = NULL_TREE, my_super_id = NULL_TREE;
tree cast_type, initlist, protocol_decl;
my_super_id = CLASS_SUPER_NAME (implementation_template);
if (my_super_id)
{
add_class_reference (my_super_id);
my_root_id = my_super_id;
do
{
tree my_root_int = lookup_interface (my_root_id);
if (my_root_int && CLASS_SUPER_NAME (my_root_int))
my_root_id = CLASS_SUPER_NAME (my_root_int);
else
break;
}
while (1);
}
else
my_root_id = CLASS_NAME (implementation_template);
cast_type
= groktypename (build_tree_list (build_tree_list (NULL_TREE,
objc_class_template),
build1 (INDIRECT_REF,
NULL_TREE, NULL_TREE)));
name_expr = add_objc_string (CLASS_NAME (implementation_template),
class_names);
if (my_super_id)
{
super_expr = add_objc_string (my_super_id, class_names);
super_expr = build_c_cast (cast_type, super_expr);
}
else
super_expr = build_int_2 (0, 0);
root_expr = add_objc_string (my_root_id, class_names);
root_expr = build_c_cast (cast_type, root_expr);
if (CLASS_PROTOCOL_LIST (implementation_template))
{
generate_protocol_references
(CLASS_PROTOCOL_LIST (implementation_template));
protocol_decl = generate_protocol_list (implementation_template);
}
else
protocol_decl = 0;
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
decl_specs = tree_cons (NULL_TREE, objc_class_template, sc_spec);
decl = start_decl (DECL_NAME (UOBJC_METACLASS_decl), decl_specs, 1,
NULL_TREE);
initlist
= build_shared_structure_initializer
(TREE_TYPE (decl),
root_expr, super_expr, name_expr,
convert (integer_type_node, TYPE_SIZE_UNIT (objc_class_template)),
2 ,
UOBJC_CLASS_METHODS_decl,
UOBJC_CLASS_VARIABLES_decl,
protocol_decl);
finish_decl (decl, initlist, NULL_TREE);
decl = start_decl (DECL_NAME (UOBJC_CLASS_decl), decl_specs, 1,
NULL_TREE);
initlist
= build_shared_structure_initializer
(TREE_TYPE (decl),
build_unary_op (ADDR_EXPR, UOBJC_METACLASS_decl, 0),
super_expr, name_expr,
convert (integer_type_node,
TYPE_SIZE_UNIT (CLASS_STATIC_TEMPLATE
(implementation_template))),
1 ,
UOBJC_INSTANCE_METHODS_decl,
UOBJC_INSTANCE_VARIABLES_decl,
protocol_decl);
finish_decl (decl, initlist, NULL_TREE);
}
static tree
synth_id_with_class_suffix (preamble, ctxt)
const char *preamble;
tree ctxt;
{
char *string;
if (TREE_CODE (ctxt) == CLASS_IMPLEMENTATION_TYPE
|| TREE_CODE (ctxt) == CLASS_INTERFACE_TYPE)
{
const char *const class_name
= IDENTIFIER_POINTER (CLASS_NAME (objc_implementation_context));
string = (char *) alloca (strlen (preamble) + strlen (class_name) + 3);
sprintf (string, "%s_%s", preamble,
IDENTIFIER_POINTER (CLASS_NAME (ctxt)));
}
else if (TREE_CODE (ctxt) == CATEGORY_IMPLEMENTATION_TYPE
|| TREE_CODE (ctxt) == CATEGORY_INTERFACE_TYPE)
{
const char *const class_name
= IDENTIFIER_POINTER (CLASS_NAME (objc_implementation_context));
const char *const class_super_name
= IDENTIFIER_POINTER (CLASS_SUPER_NAME (objc_implementation_context));
string = (char *) alloca (strlen (preamble)
+ strlen (class_name)
+ strlen (class_super_name)
+ 3);
sprintf (string, "%s_%s_%s", preamble, class_name, class_super_name);
}
else if (TREE_CODE (ctxt) == PROTOCOL_INTERFACE_TYPE)
{
const char *protocol_name = IDENTIFIER_POINTER (PROTOCOL_NAME (ctxt));
string
= (char *) alloca (strlen (preamble) + strlen (protocol_name) + 3);
sprintf (string, "%s_%s", preamble, protocol_name);
}
else
abort ();
return get_identifier (string);
}
static int
is_objc_type_qualifier (node)
tree node;
{
return (TREE_CODE (node) == IDENTIFIER_NODE
&& (node == ridpointers [(int) RID_CONST]
|| node == ridpointers [(int) RID_VOLATILE]
|| node == ridpointers [(int) RID_IN]
|| node == ridpointers [(int) RID_OUT]
|| node == ridpointers [(int) RID_INOUT]
|| node == ridpointers [(int) RID_BYCOPY]
|| node == ridpointers [(int) RID_BYREF]
|| node == ridpointers [(int) RID_ONEWAY]));
}
static tree
adjust_type_for_id_default (type)
tree type;
{
tree declspecs, chain;
if (!type)
return build_tree_list (build_tree_list (NULL_TREE, objc_object_reference),
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE));
declspecs = TREE_PURPOSE (type);
for (chain = declspecs;
chain;
chain = TREE_CHAIN (chain))
{
if (TYPED_OBJECT (TREE_VALUE (chain))
&& !(TREE_VALUE (type)
&& TREE_CODE (TREE_VALUE (type)) == INDIRECT_REF))
error ("can not use an object as parameter to a method\n");
if (!is_objc_type_qualifier (TREE_VALUE (chain)))
return type;
}
return build_tree_list (tree_cons (NULL_TREE, objc_object_reference,
declspecs),
build1 (INDIRECT_REF, NULL_TREE, NULL_TREE));
}
tree
build_keyword_decl (key_name, arg_type, arg_name)
tree key_name;
tree arg_type;
tree arg_name;
{
tree keyword_decl;
arg_type = adjust_type_for_id_default (arg_type);
keyword_decl = make_node (KEYWORD_DECL);
TREE_TYPE (keyword_decl) = arg_type;
KEYWORD_ARG_NAME (keyword_decl) = arg_name;
KEYWORD_KEY_NAME (keyword_decl) = key_name;
return keyword_decl;
}
static tree
build_keyword_selector (selector)
tree selector;
{
int len = 0;
tree key_chain, key_name;
char *buf;
for (key_chain = selector; key_chain; key_chain = TREE_CHAIN (key_chain))
{
if (TREE_CODE (selector) == KEYWORD_DECL)
key_name = KEYWORD_KEY_NAME (key_chain);
else if (TREE_CODE (selector) == TREE_LIST)
key_name = TREE_PURPOSE (key_chain);
else
abort ();
if (key_name)
len += IDENTIFIER_LENGTH (key_name) + 1;
else
len++;
}
buf = (char *) alloca (len + 1);
buf[0] = '\0';
for (key_chain = selector; key_chain; key_chain = TREE_CHAIN (key_chain))
{
if (TREE_CODE (selector) == KEYWORD_DECL)
key_name = KEYWORD_KEY_NAME (key_chain);
else if (TREE_CODE (selector) == TREE_LIST)
key_name = TREE_PURPOSE (key_chain);
else
abort ();
if (key_name)
strcat (buf, IDENTIFIER_POINTER (key_name));
strcat (buf, ":");
}
return get_identifier (buf);
}
tree
build_method_decl (code, ret_type, selector, add_args)
enum tree_code code;
tree ret_type;
tree selector;
tree add_args;
{
tree method_decl;
ret_type = adjust_type_for_id_default (ret_type);
method_decl = make_node (code);
TREE_TYPE (method_decl) = ret_type;
if (TREE_CODE (selector) == KEYWORD_DECL)
{
METHOD_SEL_NAME (method_decl) = build_keyword_selector (selector);
METHOD_SEL_ARGS (method_decl) = selector;
METHOD_ADD_ARGS (method_decl) = add_args;
}
else
{
METHOD_SEL_NAME (method_decl) = selector;
METHOD_SEL_ARGS (method_decl) = NULL_TREE;
METHOD_ADD_ARGS (method_decl) = NULL_TREE;
}
return method_decl;
}
#define METHOD_DEF 0
#define METHOD_REF 1
static tree
get_arg_type_list (meth, context, superflag)
tree meth;
int context;
int superflag;
{
tree arglist, akey;
if (flag_next_runtime && superflag)
arglist = build_tree_list (NULL_TREE, super_type);
else if (context == METHOD_DEF)
arglist = build_tree_list (NULL_TREE, TREE_TYPE (self_decl));
else
arglist = build_tree_list (NULL_TREE, id_type);
chainon (arglist, build_tree_list (NULL_TREE, selector_type));
for (akey = METHOD_SEL_ARGS (meth); akey; akey = TREE_CHAIN (akey))
{
tree arg_decl = groktypename_in_parm_context (TREE_TYPE (akey));
chainon (arglist, build_tree_list (NULL_TREE, TREE_TYPE (arg_decl)));
}
if (METHOD_ADD_ARGS (meth) == objc_ellipsis_node)
;
else if (METHOD_ADD_ARGS (meth))
{
tree add_arg_list = TREE_CHAIN (METHOD_ADD_ARGS (meth));
chainon (arglist, add_arg_list);
}
else
chainon (arglist, OBJC_VOID_AT_END);
return arglist;
}
static tree
check_duplicates (hsh)
hash hsh;
{
tree meth = NULL_TREE;
if (hsh)
{
meth = hsh->key;
if (hsh->list)
{
attr loop;
char type = (TREE_CODE (meth) == INSTANCE_METHOD_DECL) ? '-' : '+';
warning ("multiple declarations for method `%s'",
IDENTIFIER_POINTER (METHOD_SEL_NAME (meth)));
warn_with_method ("using", type, meth);
for (loop = hsh->list; loop; loop = loop->next)
warn_with_method ("also found", type, loop->value);
}
}
return meth;
}
static tree
receiver_is_class_object (receiver, self, super)
tree receiver;
int self, super;
{
tree chain, exp, arg;
if (objc_method_context
&& TREE_CODE (objc_method_context) == CLASS_METHOD_DECL
&& (self || super))
return (super
? CLASS_SUPER_NAME (implementation_template)
: CLASS_NAME (implementation_template));
if (flag_next_runtime)
{
if (TREE_CODE (receiver) == VAR_DECL
&& TREE_TYPE (TREE_TYPE (receiver)) == TREE_TYPE (objc_class_type))
for (chain = cls_ref_chain; chain; chain = TREE_CHAIN (chain))
if (TREE_PURPOSE (chain) == receiver)
return TREE_VALUE (chain);
}
if (TREE_CODE (receiver) == CALL_EXPR
&& (exp = TREE_OPERAND (receiver, 0))
&& TREE_CODE (exp) == ADDR_EXPR
&& (exp = TREE_OPERAND (exp, 0))
&& TREE_CODE (exp) == FUNCTION_DECL
&& exp == objc_get_class_decl
&& (arg = TREE_OPERAND (receiver, 1))
&& TREE_CODE (arg) == TREE_LIST
&& (arg = TREE_VALUE (arg)))
{
STRIP_NOPS (arg);
if (TREE_CODE (arg) == ADDR_EXPR
&& (arg = TREE_OPERAND (arg, 0))
&& TREE_CODE (arg) == STRING_CST)
return get_identifier (TREE_STRING_POINTER (arg));
}
return 0;
}
static tree current_objc_message_selector = 0;
tree
objc_message_selector ()
{
return current_objc_message_selector;
}
tree
build_message_expr (mess)
tree mess;
{
tree receiver = TREE_PURPOSE (mess);
tree sel_name;
tree args = TREE_VALUE (mess);
tree method_params = NULL_TREE;
if (TREE_CODE (receiver) == ERROR_MARK)
return error_mark_node;
if (TREE_CODE (args) == IDENTIFIER_NODE)
sel_name = args;
else if (TREE_CODE (args) == TREE_LIST)
sel_name = build_keyword_selector (args);
else
abort ();
if (TREE_CODE (args) == TREE_LIST)
{
tree chain = args, prev = NULL_TREE;
while (chain)
{
tree element = TREE_VALUE (chain);
if (TREE_CODE (element) == TREE_LIST)
{
if (prev)
TREE_CHAIN (prev) = element;
else
args = element;
}
prev = chain;
chain = TREE_CHAIN (chain);
}
method_params = args;
}
#ifdef OBJCPLUS
if (processing_template_decl)
return build_min_nt (MESSAGE_SEND_EXPR, receiver, sel_name,
method_params);
#endif
return finish_message_expr (receiver, sel_name, method_params);
}
static tree
lookup_method_in_hash_lists (sel_name)
tree sel_name;
{
tree method_prototype = check_duplicates
(hash_lookup (nst_method_hash_list,
sel_name));
if (!method_prototype)
method_prototype = check_duplicates
(hash_lookup (cls_method_hash_list,
sel_name));
return method_prototype;
}
tree
finish_message_expr (receiver, sel_name, method_params)
tree receiver, sel_name, method_params;
{
tree method_prototype = NULL_TREE, rprotos = NULL_TREE, rtype;
tree selector, retval, is_class;
int self, super, have_cast;
rtype = receiver;
while (TREE_CODE (rtype) == COMPOUND_EXPR
|| TREE_CODE (rtype) == MODIFY_EXPR
|| TREE_CODE (rtype) == NOP_EXPR
|| TREE_CODE (rtype) == COMPONENT_REF)
rtype = TREE_OPERAND (rtype, 0);
self = (rtype == self_decl);
super = (rtype == UOBJC_SUPER_decl);
rtype = TREE_TYPE (receiver);
have_cast = (TREE_CODE (receiver) == NOP_EXPR
|| (TREE_CODE (receiver) == COMPOUND_EXPR
&& !IS_SUPER (rtype)));
is_class = receiver_is_class_object (receiver, self, super);
if (!have_cast)
{
if (is_class)
rtype = lookup_interface (is_class);
else if (super)
{
if (!CLASS_SUPER_NAME (implementation_template))
{
error ("no super class declared in @interface for `%s'",
IDENTIFIER_POINTER (CLASS_NAME (implementation_template)));
return error_mark_node;
}
rtype = lookup_interface (CLASS_SUPER_NAME (implementation_template));
}
else if (self)
rtype = lookup_interface (CLASS_NAME (implementation_template));
}
if (!rtype || IS_ID (rtype)
|| TREE_TYPE (rtype) == TREE_TYPE (objc_class_type))
{
if (!rtype)
rtype = xref_tag (RECORD_TYPE, is_class);
else if (IS_ID (rtype))
{
rprotos = TYPE_PROTOCOL_LIST (rtype);
rtype = NULL_TREE;
}
else
is_class = TYPE_NAME (rtype) = get_identifier ("Class");
if (rprotos)
method_prototype
= lookup_method_in_protocol_list (rprotos, sel_name,
is_class != NULL_TREE);
if (!method_prototype && !rprotos)
method_prototype = lookup_method_in_hash_lists (sel_name);
}
else
{
tree orig_rtype = rtype, saved_rtype;
if (TREE_CODE (rtype) == POINTER_TYPE)
rtype = TREE_TYPE (rtype);
while (TREE_CODE (rtype) == RECORD_TYPE && TYPE_NAME (rtype)
&& TREE_CODE (TYPE_NAME (rtype)) == TYPE_DECL
&& DECL_RESULT (TYPE_NAME (rtype)))
rtype = DECL_RESULT (TYPE_NAME (rtype));
saved_rtype = rtype;
if (TYPED_OBJECT (rtype))
{
rprotos = TYPE_PROTOCOL_LIST (rtype);
rtype = lookup_interface (OBJC_TYPE_NAME (rtype));
}
if (!rtype)
rtype = saved_rtype;
else if (TREE_CODE (rtype) == CLASS_INTERFACE_TYPE
|| TREE_CODE (rtype) == CLASS_IMPLEMENTATION_TYPE)
{
method_prototype
= (is_class
? lookup_class_method_static (rtype, sel_name)
: lookup_instance_method_static (rtype, sel_name));
if (!method_prototype && objc_implementation_context
&& CLASS_NAME (objc_implementation_context)
== OBJC_TYPE_NAME (rtype))
method_prototype
= lookup_method
((is_class
? CLASS_CLS_METHODS (objc_implementation_context)
: CLASS_NST_METHODS (objc_implementation_context)),
sel_name);
if (!method_prototype && rprotos)
method_prototype
= lookup_method_in_protocol_list (rprotos, sel_name,
is_class != NULL_TREE);
}
else
{
warning ("invalid receiver type `%s'",
gen_declaration (orig_rtype, errbuf));
rtype = NULL_TREE;
method_prototype = lookup_method_in_hash_lists (sel_name);
}
}
if (!method_prototype)
{
if (rtype)
warning ("`%s' may not respond to `%c%s'",
IDENTIFIER_POINTER (OBJC_TYPE_NAME (rtype)),
(is_class ? '+' : '-'),
IDENTIFIER_POINTER (sel_name));
if (rprotos)
warning ("`%c%s' not implemented by protocol(s)",
(is_class ? '+' : '-'),
IDENTIFIER_POINTER (sel_name));
if (!(method_prototype = lookup_method_in_hash_lists (sel_name)))
warning ("cannot find method `%c%s'; return type `id' assumed",
(is_class ? '+' : '-'),
IDENTIFIER_POINTER (sel_name));
}
current_objc_message_selector = sel_name;
if (flag_typed_selectors)
selector = build_typed_selector_reference (sel_name, method_prototype);
else
selector = build_selector_reference (sel_name);
retval = build_objc_method_call (super, method_prototype,
receiver,
selector, method_params);
current_objc_message_selector = 0;
return retval;
}
static tree
build_objc_method_call (super_flag, method_prototype, lookup_object,
selector, method_params)
int super_flag;
tree method_prototype, lookup_object, selector, method_params;
{
tree sender = (super_flag ? umsg_super_decl :
flag_nil_receivers ? umsg_decl : umsg_nonnil_decl);
tree rcv_p = (super_flag ? super_type : id_type);
tree object = (super_flag ? self_decl : lookup_object);
if (flag_next_runtime)
{
tree ret_type = (method_prototype
? groktypename (TREE_TYPE (method_prototype))
: id_type);
tree sender_cast = (method_prototype
? build_pointer_type
(build_function_type
((ret_type == void_type_node
? id_type
: ret_type),
get_arg_type_list (method_prototype,
METHOD_REF,
super_flag)))
: NULL_TREE);
#ifdef STRUCT_VALUE
if ((TREE_CODE (ret_type) == RECORD_TYPE
|| TREE_CODE (ret_type) == UNION_TYPE)
#if defined (DEFAULT_PCC_STRUCT_RETURN) && DEFAULT_PCC_STRUCT_RETURN == 0
&& RETURN_IN_MEMORY (ret_type)
#endif
&& STRUCT_VALUE == 0)
sender = (super_flag ? umsg_super_stret_decl :
flag_nil_receivers ? umsg_stret_decl : umsg_nonnil_stret_decl);
#endif
method_params = tree_cons (NULL_TREE,
build_c_cast (rcv_p, lookup_object),
tree_cons (NULL_TREE, selector,
method_params));
assemble_external (sender);
return build_function_call
(sender_cast ? build_c_cast (sender_cast, sender) : sender,
method_params);
}
else
{
tree method;
object = save_expr (object);
selector = save_expr (selector);
lookup_object = build_c_cast (rcv_p, lookup_object);
assemble_external (sender);
method
= build_function_call (sender,
tree_cons (NULL_TREE, lookup_object,
tree_cons (NULL_TREE, selector,
NULL_TREE)));
if (method_prototype)
{
tree arglist = get_arg_type_list (method_prototype, METHOD_REF,
super_flag);
tree valtype = groktypename (TREE_TYPE (method_prototype));
tree fake_function_type = build_function_type (valtype, arglist);
TREE_TYPE (method) = build_pointer_type (fake_function_type);
}
else
TREE_TYPE (method)
= build_pointer_type (build_function_type (ptr_type_node, NULL_TREE));
assemble_external (method);
return build_function_call (method,
tree_cons (NULL_TREE, object,
tree_cons (NULL_TREE, selector,
method_params)));
}
}
static void
build_protocol_reference (p)
tree p;
{
tree decl, ident, ptype;
ident = synth_id_with_class_suffix ("_OBJC_PROTOCOL", p);
ptype
= groktypename (build_tree_list (build_tree_list (NULL_TREE,
objc_protocol_template),
NULL_TREE));
if (IDENTIFIER_GLOBAL_VALUE (ident))
decl = IDENTIFIER_GLOBAL_VALUE (ident);
else
{
decl = build_decl (VAR_DECL, ident, ptype);
DECL_EXTERNAL (decl) = 1;
TREE_PUBLIC (decl) = 0;
TREE_USED (decl) = 1;
DECL_ARTIFICIAL (decl) = 1;
make_decl_rtl (decl, 0);
pushdecl_top_level (decl);
}
PROTOCOL_FORWARD_DECL (p) = decl;
}
tree
build_protocol_expr (protoname)
tree protoname;
{
tree expr;
tree p = lookup_protocol (protoname);
if (!p)
{
error ("cannot find protocol declaration for `%s'",
IDENTIFIER_POINTER (protoname));
return error_mark_node;
}
if (!PROTOCOL_FORWARD_DECL (p))
build_protocol_reference (p);
expr = build_unary_op (ADDR_EXPR, PROTOCOL_FORWARD_DECL (p), 0);
TREE_TYPE (expr) = protocol_type;
if (! flag_next_runtime)
{
tree protocol_struct_type = xref_tag
(RECORD_TYPE, get_identifier (PROTOCOL_OBJECT_CLASS_NAME));
tree *chain;
for (chain = &objc_static_instances;
*chain && TREE_VALUE (*chain) != protocol_struct_type;
chain = &TREE_CHAIN (*chain));
if (!*chain)
{
*chain = tree_cons (NULL_TREE, protocol_struct_type, NULL_TREE);
add_objc_string (OBJC_TYPE_NAME (protocol_struct_type),
class_names);
}
TREE_PURPOSE (*chain) = tree_cons (NULL_TREE,
PROTOCOL_FORWARD_DECL (p),
TREE_PURPOSE (*chain));
}
return expr;
}
tree
build_selector_expr (selnamelist)
tree selnamelist;
{
tree selname;
if (TREE_CODE (selnamelist) == IDENTIFIER_NODE)
selname = selnamelist;
else if (TREE_CODE (selnamelist) == TREE_LIST)
selname = build_keyword_selector (selnamelist);
else
abort ();
if (warn_undeclared_selector)
{
hash hsh;
hsh = hash_lookup (nst_method_hash_list, selname);
if (!hsh)
{
hsh = hash_lookup (cls_method_hash_list, selname);
}
if (!hsh)
{
warning ("undeclared selector `%s'", IDENTIFIER_POINTER (selname));
}
}
if (flag_typed_selectors)
return build_typed_selector_reference (selname, 0);
else
return build_selector_reference (selname);
}
tree
build_encode_expr (type)
tree type;
{
tree result;
const char *string;
encode_type (type, obstack_object_size (&util_obstack),
OBJC_ENCODE_INLINE_DEFS);
obstack_1grow (&util_obstack, 0);
string = obstack_finish (&util_obstack);
result = my_build_string (strlen (string) + 1, string);
obstack_free (&util_obstack, util_firstobj);
return result;
}
tree
build_ivar_reference (id)
tree id;
{
if (TREE_CODE (objc_method_context) == CLASS_METHOD_DECL)
{
warning ("instance variable `%s' accessed in class method",
IDENTIFIER_POINTER (id));
TREE_TYPE (self_decl) = instance_type;
}
return build_component_ref (build_indirect_ref (self_decl, "->"), id);
}
static size_t
hash_func (sel_name)
tree sel_name;
{
const unsigned char *s
= (const unsigned char *)IDENTIFIER_POINTER (sel_name);
size_t h = 0;
while (*s)
h = h * 67 + *s++ - 113;
return h;
}
static void
hash_init ()
{
nst_method_hash_list
= (hash *) ggc_alloc_cleared (SIZEHASHTABLE * sizeof (hash));
cls_method_hash_list
= (hash *) ggc_alloc_cleared (SIZEHASHTABLE * sizeof (hash));
}
static void
hash_enter (hashlist, method)
hash *hashlist;
tree method;
{
hash obj;
int slot = hash_func (METHOD_SEL_NAME (method)) % SIZEHASHTABLE;
obj = (hash) ggc_alloc (sizeof (struct hashed_entry));
obj->list = 0;
obj->next = hashlist[slot];
obj->key = method;
hashlist[slot] = obj;
}
static hash
hash_lookup (hashlist, sel_name)
hash *hashlist;
tree sel_name;
{
hash target;
target = hashlist[hash_func (sel_name) % SIZEHASHTABLE];
while (target)
{
if (sel_name == METHOD_SEL_NAME (target->key))
return target;
target = target->next;
}
return 0;
}
static void
hash_add_attr (entry, value)
hash entry;
tree value;
{
attr obj;
obj = (attr) ggc_alloc (sizeof (struct hashed_attribute));
obj->next = entry->list;
obj->value = value;
entry->list = obj;
}
static tree
lookup_method (mchain, method)
tree mchain;
tree method;
{
tree key;
if (TREE_CODE (method) == IDENTIFIER_NODE)
key = method;
else
key = METHOD_SEL_NAME (method);
while (mchain)
{
if (METHOD_SEL_NAME (mchain) == key)
return mchain;
mchain = TREE_CHAIN (mchain);
}
return NULL_TREE;
}
static tree
lookup_instance_method_static (interface, ident)
tree interface;
tree ident;
{
tree inter = interface;
tree chain = CLASS_NST_METHODS (inter);
tree meth = NULL_TREE;
do
{
if ((meth = lookup_method (chain, ident)))
return meth;
if (CLASS_CATEGORY_LIST (inter))
{
tree category = CLASS_CATEGORY_LIST (inter);
chain = CLASS_NST_METHODS (category);
do
{
if ((meth = lookup_method (chain, ident)))
return meth;
if (CLASS_PROTOCOL_LIST (category))
{
if ((meth = (lookup_method_in_protocol_list
(CLASS_PROTOCOL_LIST (category), ident, 0))))
return meth;
}
if ((category = CLASS_CATEGORY_LIST (category)))
chain = CLASS_NST_METHODS (category);
}
while (category);
}
if (CLASS_PROTOCOL_LIST (inter))
{
if ((meth = (lookup_method_in_protocol_list
(CLASS_PROTOCOL_LIST (inter), ident, 0))))
return meth;
}
if ((inter = lookup_interface (CLASS_SUPER_NAME (inter))))
chain = CLASS_NST_METHODS (inter);
}
while (inter);
return meth;
}
static tree
lookup_class_method_static (interface, ident)
tree interface;
tree ident;
{
tree inter = interface;
tree chain = CLASS_CLS_METHODS (inter);
tree meth = NULL_TREE;
tree root_inter = NULL_TREE;
do
{
if ((meth = lookup_method (chain, ident)))
return meth;
if (CLASS_CATEGORY_LIST (inter))
{
tree category = CLASS_CATEGORY_LIST (inter);
chain = CLASS_CLS_METHODS (category);
do
{
if ((meth = lookup_method (chain, ident)))
return meth;
if (CLASS_PROTOCOL_LIST (category))
{
if ((meth = (lookup_method_in_protocol_list
(CLASS_PROTOCOL_LIST (category), ident, 1))))
return meth;
}
if ((category = CLASS_CATEGORY_LIST (category)))
chain = CLASS_CLS_METHODS (category);
}
while (category);
}
if (CLASS_PROTOCOL_LIST (inter))
{
if ((meth = (lookup_method_in_protocol_list
(CLASS_PROTOCOL_LIST (inter), ident, 1))))
return meth;
}
root_inter = inter;
if ((inter = lookup_interface (CLASS_SUPER_NAME (inter))))
chain = CLASS_CLS_METHODS (inter);
}
while (inter);
return lookup_instance_method_static (root_inter, ident);
}
tree
add_class_method (class, method)
tree class;
tree method;
{
tree mth;
hash hsh;
if (!(mth = lookup_method (CLASS_CLS_METHODS (class), method)))
{
TREE_CHAIN (method) = CLASS_CLS_METHODS (class);
CLASS_CLS_METHODS (class) = method;
}
else
{
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
error ("duplicate definition of class method `%s'",
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
else
{
if (!comp_proto_with_proto (method, mth))
error ("duplicate declaration of class method `%s'",
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
}
}
if (!(hsh = hash_lookup (cls_method_hash_list, METHOD_SEL_NAME (method))))
{
hash_enter (cls_method_hash_list, method);
}
else
{
if (!comp_proto_with_proto (method, hsh->key))
hash_add_attr (hsh, method);
}
if (flag_gen_index
&& (TREE_CODE (class) == CLASS_INTERFACE_TYPE
|| TREE_CODE (class) == CATEGORY_INTERFACE_TYPE
|| TREE_CODE (class) == PROTOCOL_INTERFACE_TYPE))
gen_indexing_info (INDEX_CLASS_METHOD_DECL,
IDENTIFIER_POINTER (DECL_NAME (method)),
DECL_SOURCE_LINE (method) );
return method;
}
tree
add_instance_method (class, method)
tree class;
tree method;
{
tree mth;
hash hsh;
if (!(mth = lookup_method (CLASS_NST_METHODS (class), method)))
{
TREE_CHAIN (method) = CLASS_NST_METHODS (class);
CLASS_NST_METHODS (class) = method;
}
else
{
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
error ("duplicate definition of instance method `%s'",
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
else
{
if (!comp_proto_with_proto (method, mth))
error ("duplicate declaration of instance method `%s'",
IDENTIFIER_POINTER (METHOD_SEL_NAME (mth)));
}
}
if (!(hsh = hash_lookup (nst_method_hash_list, METHOD_SEL_NAME (method))))
{
hash_enter (nst_method_hash_list, method);
}
else
{
if (!comp_proto_with_proto (method, hsh->key))
hash_add_attr (hsh, method);
}
if (flag_gen_index
&& (TREE_CODE (class) == CLASS_INTERFACE_TYPE
|| TREE_CODE (class) == CATEGORY_INTERFACE_TYPE
|| TREE_CODE (class) == PROTOCOL_INTERFACE_TYPE))
gen_indexing_info (INDEX_INSTANCE_METHOD_DECL,
IDENTIFIER_POINTER (DECL_NAME (method)),
lineno);
return method;
}
static tree
add_class (class, name)
tree class;
tree name;
{
IDENTIFIER_INTERFACE_VALUE (name) = class;
TREE_CHAIN (class) = interface_chain;
interface_chain = class;
return interface_chain;
}
static void
add_category (class, category)
tree class;
tree category;
{
tree cat = CLASS_CATEGORY_LIST (class);
while (cat)
{
if (CLASS_SUPER_NAME (cat) == CLASS_SUPER_NAME (category))
#ifdef OBJCPLUS
error ("duplicate interface declaration for category `%s(%s)'",
#else
warning ("duplicate interface declaration for category `%s(%s)'",
#endif
IDENTIFIER_POINTER (CLASS_NAME (class)),
IDENTIFIER_POINTER (CLASS_SUPER_NAME (category)));
cat = CLASS_CATEGORY_LIST (cat);
}
CLASS_CATEGORY_LIST (category) = CLASS_CATEGORY_LIST (class);
CLASS_CATEGORY_LIST (class) = category;
}
tree
add_instance_variable (class, public, declarator, declspecs, width)
tree class;
int public;
tree declarator;
tree declspecs;
tree width;
{
tree field_decl, field_type, raw_decl;
const char *ivar_name;
field_decl = grokfield (input_filename, lineno,
declarator, declspecs, width);
field_type = TREE_TYPE (field_decl);
ivar_name = IDENTIFIER_POINTER (TREE_CODE (declarator) == IDENTIFIER_NODE
? declarator
: TREE_OPERAND (declarator, 0));
#ifdef OBJCPLUS
if (TREE_CODE (field_type) == REFERENCE_TYPE)
{
error ("illegal reference type specified for instance variable `%s'",
ivar_name);
return class;
}
#endif
if (field_type == error_mark_node || !TYPE_SIZE (field_type)
|| TYPE_SIZE (field_type) == error_mark_node
#ifdef OBJCPLUS
|| (TYPE_SIZE (field_type) == bitsize_zero_node
&& !TREE_OPERAND (declarator, 1))
#endif
)
{
error ("instance variable `%s' has unknown size", ivar_name);
return class;
}
#ifdef OBJCPLUS
if(IS_AGGR_TYPE (field_type) && (TYPE_NEEDS_CONSTRUCTING (field_type)
|| TYPE_HAS_NONTRIVIAL_DESTRUCTOR (field_type) || TYPE_POLYMORPHIC_P (field_type)))
{
const char *type_name = IDENTIFIER_POINTER (OBJC_TYPE_NAME (field_type));
if(TYPE_POLYMORPHIC_P (field_type)) {
error ("type `%s' has virtual member functions", type_name);
error ("illegal aggregate type `%s' specified for instance variable `%s'",
type_name, ivar_name);
return class;
}
if (TYPE_NEEDS_CONSTRUCTING (field_type))
warning ("type `%s' has a user-defined constructor", type_name);
if (TYPE_HAS_NONTRIVIAL_DESTRUCTOR (field_type))
warning ("type `%s' has a user-defined destructor", type_name);
warning ("C++ constructors and destructors will not be invoked for Objective-C fields");
}
#endif
switch (public)
{
case 0:
TREE_PUBLIC (field_decl) = 0;
TREE_PRIVATE (field_decl) = 0;
TREE_PROTECTED (field_decl) = 1;
break;
case 1:
TREE_PUBLIC (field_decl) = 1;
TREE_PRIVATE (field_decl) = 0;
TREE_PROTECTED (field_decl) = 0;
break;
case 2:
TREE_PUBLIC (field_decl) = 0;
TREE_PRIVATE (field_decl) = 1;
TREE_PROTECTED (field_decl) = 0;
break;
}
raw_decl = build_tree_list (declspecs, declarator);
CLASS_RAW_IVARS (class) = chainon (CLASS_RAW_IVARS (class), raw_decl);
CLASS_IVARS (class) = chainon (CLASS_IVARS (class), field_decl);
if (flag_gen_index)
gen_indexing_info (INDEX_DATA_DECL,
IDENTIFIER_POINTER (DECL_NAME (field_decl)),
lineno);
return class;
}
tree
is_ivar (decl_chain, ident)
tree decl_chain;
tree ident;
{
for ( ; decl_chain; decl_chain = TREE_CHAIN (decl_chain))
if (DECL_NAME (decl_chain) == ident)
return decl_chain;
return NULL_TREE;
}
int
is_private (decl)
tree decl;
{
if (TREE_PRIVATE (decl)
&& ! is_ivar (CLASS_IVARS (implementation_template), DECL_NAME (decl)))
{
error ("instance variable `%s' is declared private",
IDENTIFIER_POINTER (DECL_NAME (decl)));
return 1;
}
else
return 0;
}
int
is_public (expr, identifier)
tree expr;
tree identifier;
{
tree basetype = TREE_TYPE (expr);
enum tree_code code = TREE_CODE (basetype);
tree decl;
if (code == RECORD_TYPE)
{
if (TREE_STATIC_TEMPLATE (basetype))
{
if (!lookup_interface (OBJC_TYPE_NAME (basetype)))
{
error ("cannot find interface declaration for `%s'",
IDENTIFIER_POINTER (OBJC_TYPE_NAME (basetype)));
return 0;
}
if ((decl = is_ivar (TYPE_FIELDS (basetype), identifier)))
{
if (TREE_PUBLIC (decl))
return 1;
if (objc_implementation_context
&& (((TREE_CODE (objc_implementation_context)
== CLASS_IMPLEMENTATION_TYPE)
|| (TREE_CODE (objc_implementation_context)
== CATEGORY_IMPLEMENTATION_TYPE))
&& (CLASS_NAME (objc_implementation_context)
== OBJC_TYPE_NAME (basetype))))
return ! is_private (decl);
if (!objc_method_context)
{
warning ("instance variable `%s' is %s; "
"this will be a hard error in the future",
IDENTIFIER_POINTER (identifier),
TREE_PRIVATE (decl) ? "@private" : "@protected");
return 1;
}
error ("instance variable `%s' is declared %s",
IDENTIFIER_POINTER (identifier),
TREE_PRIVATE (decl) ? "private" : "protected");
return 0;
}
}
else if (objc_implementation_context && (basetype == objc_object_reference))
{
TREE_TYPE (expr) = uprivate_record;
warning ("static access to object of type `id'");
}
}
return 1;
}
static int
check_methods (chain, list, mtype)
tree chain;
tree list;
int mtype;
{
int first = 1;
while (chain)
{
if (!lookup_method (list, chain))
{
if (first)
{
if (TREE_CODE (objc_implementation_context)
== CLASS_IMPLEMENTATION_TYPE)
warning ("incomplete implementation of class `%s'",
IDENTIFIER_POINTER (CLASS_NAME (objc_implementation_context)));
else if (TREE_CODE (objc_implementation_context)
== CATEGORY_IMPLEMENTATION_TYPE)
warning ("incomplete implementation of category `%s'",
IDENTIFIER_POINTER (CLASS_SUPER_NAME (objc_implementation_context)));
first = 0;
}
warning ("method definition for `%c%s' not found",
mtype, IDENTIFIER_POINTER (METHOD_SEL_NAME (chain)));
}
chain = TREE_CHAIN (chain);
}
return first;
}
static int
conforms_to_protocol (class, protocol)
tree class;
tree protocol;
{
if (TREE_CODE (protocol) == PROTOCOL_INTERFACE_TYPE)
{
tree p = CLASS_PROTOCOL_LIST (class);
while (p && TREE_VALUE (p) != protocol)
p = TREE_CHAIN (p);
if (!p)
{
tree super = (CLASS_SUPER_NAME (class)
? lookup_interface (CLASS_SUPER_NAME (class))
: NULL_TREE);
int tmp = super ? conforms_to_protocol (super, protocol) : 0;
if (!tmp)
return 0;
}
}
return 1;
}
static int
check_methods_accessible (chain, context, mtype)
tree chain;
tree context;
int mtype;
{
int first = 1;
tree list;
tree base_context = context;
while (chain)
{
context = base_context;
while (context)
{
if (mtype == '+')
list = CLASS_CLS_METHODS (context);
else
list = CLASS_NST_METHODS (context);
if (lookup_method (list, chain))
break;
else if (TREE_CODE (context) == CLASS_IMPLEMENTATION_TYPE
|| TREE_CODE (context) == CLASS_INTERFACE_TYPE)
context = (CLASS_SUPER_NAME (context)
? lookup_interface (CLASS_SUPER_NAME (context))
: NULL_TREE);
else if (TREE_CODE (context) == CATEGORY_IMPLEMENTATION_TYPE
|| TREE_CODE (context) == CATEGORY_INTERFACE_TYPE)
context = (CLASS_NAME (context)
? lookup_interface (CLASS_NAME (context))
: NULL_TREE);
else
abort ();
}
if (context == NULL_TREE)
{
if (first)
{
if (TREE_CODE (objc_implementation_context)
== CLASS_IMPLEMENTATION_TYPE)
warning ("incomplete implementation of class `%s'",
IDENTIFIER_POINTER
(CLASS_NAME (objc_implementation_context)));
else if (TREE_CODE (objc_implementation_context)
== CATEGORY_IMPLEMENTATION_TYPE)
warning ("incomplete implementation of category `%s'",
IDENTIFIER_POINTER
(CLASS_SUPER_NAME (objc_implementation_context)));
first = 0;
}
warning ("method definition for `%c%s' not found",
mtype, IDENTIFIER_POINTER (METHOD_SEL_NAME (chain)));
}
chain = TREE_CHAIN (chain);
}
return first;
}
static void
check_protocol (p, type, name)
tree p;
const char *type;
const char *name;
{
if (TREE_CODE (p) == PROTOCOL_INTERFACE_TYPE)
{
int f1, f2;
if (warn_protocol)
{
f1 = check_methods (PROTOCOL_CLS_METHODS (p),
CLASS_CLS_METHODS (objc_implementation_context),
'+');
f2 = check_methods (PROTOCOL_NST_METHODS (p),
CLASS_NST_METHODS (objc_implementation_context),
'-');
}
else
{
f1 = check_methods_accessible (PROTOCOL_CLS_METHODS (p),
objc_implementation_context,
'+');
f2 = check_methods_accessible (PROTOCOL_NST_METHODS (p),
objc_implementation_context,
'-');
}
if (!f1 || !f2)
warning ("%s `%s' does not fully implement the `%s' protocol",
type, name, IDENTIFIER_POINTER (PROTOCOL_NAME (p)));
}
if (PROTOCOL_LIST (p))
{
tree subs = PROTOCOL_LIST (p);
tree super_class =
lookup_interface (CLASS_SUPER_NAME (implementation_template));
while (subs)
{
tree sub = TREE_VALUE (subs);
if (!super_class || !conforms_to_protocol (super_class, sub))
check_protocol (sub, type, name);
subs = TREE_CHAIN (subs);
}
}
}
static void
check_protocols (proto_list, type, name)
tree proto_list;
const char *type;
const char *name;
{
for ( ; proto_list; proto_list = TREE_CHAIN (proto_list))
{
tree p = TREE_VALUE (proto_list);
check_protocol (p, type, name);
}
}
tree
start_class (code, class_name, super_name, protocol_list)
enum tree_code code;
tree class_name;
tree super_name;
tree protocol_list;
{
tree class, decl;
#ifdef OBJCPLUS
set_index_lang (PB_INDEX_LANG_OBJC);
if (current_namespace != global_namespace) {
error ("Objective-C declarations may only appear in global scope");
}
#endif
if (objc_implementation_context)
{
warning ("`@end' missing in implementation context");
finish_class (objc_implementation_context);
objc_ivar_chain = NULL_TREE;
objc_implementation_context = NULL_TREE;
}
class = make_node (code);
TYPE_BINFO (class) = make_tree_vec (6);
CLASS_NAME (class) = class_name;
CLASS_SUPER_NAME (class) = super_name;
CLASS_CLS_METHODS (class) = NULL_TREE;
if (! is_class_name (class_name)
&& (decl = lookup_name (class_name))
&& ! TREE_STATIC_TEMPLATE (decl))
{
error ("`%s' redeclared as different kind of symbol",
IDENTIFIER_POINTER (class_name));
error_with_decl (decl, "previous declaration of `%s'");
}
if (code == CLASS_IMPLEMENTATION_TYPE)
{
{
tree chain;
for (chain = implemented_classes; chain; chain = TREE_CHAIN (chain))
if (TREE_VALUE (chain) == class_name)
{
error ("reimplementation of class `%s'",
IDENTIFIER_POINTER (class_name));
return error_mark_node;
}
implemented_classes = tree_cons (NULL_TREE, class_name,
implemented_classes);
}
method_slot = 0;
objc_implementation_context = class;
if (!(implementation_template = lookup_interface (class_name)))
{
warning ("cannot find interface declaration for `%s'",
IDENTIFIER_POINTER (class_name));
add_class (implementation_template = objc_implementation_context, class_name);
}
if (super_name
&& (super_name != CLASS_SUPER_NAME (implementation_template)))
{
tree previous_name = CLASS_SUPER_NAME (implementation_template);
const char *const name =
previous_name ? IDENTIFIER_POINTER (previous_name) : "";
error ("conflicting super class name `%s'",
IDENTIFIER_POINTER (super_name));
error ("previous declaration of `%s'", name);
}
else if (! super_name)
{
CLASS_SUPER_NAME (objc_implementation_context)
= CLASS_SUPER_NAME (implementation_template);
}
}
else if (code == CLASS_INTERFACE_TYPE)
{
if (lookup_interface (class_name))
#ifdef OBJCPLUS
error ("duplicate interface declaration for class `%s'",
#else
warning ("duplicate interface declaration for class `%s'",
#endif
IDENTIFIER_POINTER (class_name));
else
add_class (class, class_name);
if (protocol_list)
CLASS_PROTOCOL_LIST (class)
= lookup_and_install_protocols (protocol_list);
}
else if (code == CATEGORY_INTERFACE_TYPE)
{
tree class_category_is_assoc_with;
if (!(class_category_is_assoc_with = lookup_interface (class_name)))
{
error ("cannot find interface declaration for `%s'",
IDENTIFIER_POINTER (class_name));
exit (FATAL_EXIT_CODE);
}
else
add_category (class_category_is_assoc_with, class);
if (protocol_list)
CLASS_PROTOCOL_LIST (class)
= lookup_and_install_protocols (protocol_list);
}
else if (code == CATEGORY_IMPLEMENTATION_TYPE)
{
method_slot = 0;
objc_implementation_context = class;
if (!(implementation_template = lookup_interface (class_name)))
{
error ("cannot find interface declaration for `%s'",
IDENTIFIER_POINTER (class_name));
exit (FATAL_EXIT_CODE);
}
}
if (flag_gen_index)
{
int info_tag;
switch (code)
{
case CLASS_INTERFACE_TYPE:
info_tag = INDEX_CLASS_DECL;
break;
case CLASS_IMPLEMENTATION_TYPE:
info_tag = INDEX_CLASS_BEGIN;
break;
case CATEGORY_INTERFACE_TYPE:
info_tag = INDEX_CATEGORY_DECL;
break;
case CATEGORY_IMPLEMENTATION_TYPE:
info_tag = INDEX_CATEGORY_BEGIN;
break;
default:
info_tag = INDEX_ERROR;
break;
}
if (info_tag == INDEX_CATEGORY_DECL || info_tag == INDEX_CATEGORY_BEGIN)
{
gen_indexing_info (info_tag, IDENTIFIER_POINTER(super_name),
lineno);
gen_indexing_info (INDEX_CLASS_INHERITANCE, IDENTIFIER_POINTER(class_name),
lineno);
}
else
{
gen_indexing_info (info_tag, IDENTIFIER_POINTER(class_name),
lineno);
if (super_name != NULL)
gen_indexing_info (INDEX_CLASS_INHERITANCE,
IDENTIFIER_POINTER(super_name),
lineno);
}
if (protocol_list)
{
tree pnode = protocol_list;
for (; pnode; pnode = TREE_CHAIN (pnode))
{
tree pdecl = TREE_VALUE (pnode);
gen_indexing_info (INDEX_PROTOCOL_INHERITANCE,
IDENTIFIER_POINTER (OBJC_TYPE_NAME (pdecl)),
0);
}
}
}
return class;
}
tree
continue_class (class)
tree class;
{
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE
|| TREE_CODE (class) == CATEGORY_IMPLEMENTATION_TYPE)
{
struct imp_entry *imp_entry;
tree ivar_context;
if (CLASS_IVARS (class))
check_ivars (implementation_template, class);
#ifdef OBJCPLUS
push_lang_context (lang_name_c);
#endif
ivar_context = build_private_template (implementation_template);
if (!objc_class_template)
build_class_template ();
imp_entry = (struct imp_entry *) ggc_alloc (sizeof (struct imp_entry));
imp_entry->next = imp_list;
imp_entry->imp_context = class;
imp_entry->imp_template = implementation_template;
synth_forward_declarations ();
imp_entry->class_decl = UOBJC_CLASS_decl;
imp_entry->meta_decl = UOBJC_METACLASS_decl;
imp_list = imp_entry;
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
imp_count++;
else
cat_count++;
#ifdef OBJCPLUS
pop_lang_context ();
#endif
return ivar_context;
}
else if (TREE_CODE (class) == CLASS_INTERFACE_TYPE)
{
#ifdef OBJCPLUS
push_lang_context (lang_name_c);
#endif
if (!CLASS_STATIC_TEMPLATE (class))
{
tree record = start_struct (RECORD_TYPE, CLASS_NAME (class));
finish_struct (record, get_class_ivars (class), NULL_TREE);
CLASS_STATIC_TEMPLATE (class) = record;
TREE_STATIC_TEMPLATE (record) = 1;
}
#ifdef OBJCPLUS
pop_lang_context ();
#endif
return NULL_TREE;
}
else
return error_mark_node;
}
void
finish_class (class)
tree class;
{
if (flag_gen_index)
{
int info_tag;
switch (TREE_CODE (class))
{
case CLASS_INTERFACE_TYPE:
info_tag = INDEX_CLASS_DECL_END;
break;
case CLASS_IMPLEMENTATION_TYPE:
info_tag = INDEX_CLASS_END;
break;
case CATEGORY_INTERFACE_TYPE:
info_tag = INDEX_CATEGORY_DECL_END;
break;
case CATEGORY_IMPLEMENTATION_TYPE:
info_tag = INDEX_CATEGORY_END;
break;
default:
info_tag = INDEX_ERROR;
break;
}
gen_indexing_info (info_tag, NULL, lineno);
}
flag_suppress_builtin_indexing = 1;
if (TREE_CODE (class) == CLASS_IMPLEMENTATION_TYPE)
{
if (implementation_template != objc_implementation_context)
{
check_methods (CLASS_CLS_METHODS (implementation_template),
CLASS_CLS_METHODS (objc_implementation_context), '+');
check_methods (CLASS_NST_METHODS (implementation_template),
CLASS_NST_METHODS (objc_implementation_context), '-');
if (CLASS_PROTOCOL_LIST (implementation_template))
check_protocols (CLASS_PROTOCOL_LIST (implementation_template),
"class",
IDENTIFIER_POINTER (CLASS_NAME (objc_implementation_context)));
}
}
else if (TREE_CODE (class) == CATEGORY_IMPLEMENTATION_TYPE)
{
tree category = CLASS_CATEGORY_LIST (implementation_template);
while (category)
{
if (CLASS_SUPER_NAME (class) == CLASS_SUPER_NAME (category))
break;
category = CLASS_CATEGORY_LIST (category);
}
if (category)
{
check_methods (CLASS_CLS_METHODS (category),
CLASS_CLS_METHODS (objc_implementation_context), '+');
check_methods (CLASS_NST_METHODS (category),
CLASS_NST_METHODS (objc_implementation_context), '-');
if (CLASS_PROTOCOL_LIST (category))
check_protocols (CLASS_PROTOCOL_LIST (category),
"category",
IDENTIFIER_POINTER (CLASS_SUPER_NAME (objc_implementation_context)));
}
}
else if (TREE_CODE (class) == CLASS_INTERFACE_TYPE)
{
tree decl_specs;
const char *class_name = IDENTIFIER_POINTER (CLASS_NAME (class));
char *string = (char *) alloca (strlen (class_name) + 3);
sprintf (string, "_%s", class_name);
decl_specs = build_tree_list (NULL_TREE, ridpointers[(int) RID_EXTERN]);
decl_specs = tree_cons (NULL_TREE, objc_object_reference, decl_specs);
define_decl (build1 (INDIRECT_REF, NULL_TREE, get_identifier (string)),
decl_specs);
}
flag_suppress_builtin_indexing = 0;
}
static tree
add_protocol (protocol)
tree protocol;
{
TREE_CHAIN (protocol) = protocol_chain;
protocol_chain = protocol;
return protocol_chain;
}
static tree
lookup_protocol (ident)
tree ident;
{
tree chain;
for (chain = protocol_chain; chain; chain = TREE_CHAIN (chain))
if (ident == PROTOCOL_NAME (chain))
return chain;
return NULL_TREE;
}
void
objc_declare_protocols (names)
tree names;
{
tree list;
#ifdef OBJCPLUS
if (current_namespace != global_namespace) {
error ("Objective-C declarations may only appear in global scope");
}
#endif
for (list = names; list; list = TREE_CHAIN (list))
{
tree name = TREE_VALUE (list);
if (lookup_protocol (name) == NULL_TREE)
{
tree protocol = make_node (PROTOCOL_INTERFACE_TYPE);
TYPE_BINFO (protocol) = make_tree_vec (2);
PROTOCOL_NAME (protocol) = name;
PROTOCOL_LIST (protocol) = NULL_TREE;
add_protocol (protocol);
PROTOCOL_DEFINED (protocol) = 0;
PROTOCOL_FORWARD_DECL (protocol) = NULL_TREE;
}
}
}
tree
start_protocol (code, name, list)
enum tree_code code;
tree name;
tree list;
{
tree protocol;
#ifdef OBJCPLUS
if (current_namespace != global_namespace) {
error ("Objective-C declarations may only appear in global scope");
}
#endif
if (!objc_protocol_template)
objc_protocol_template = build_protocol_template ();
protocol = lookup_protocol (name);
if (!protocol)
{
protocol = make_node (code);
TYPE_BINFO (protocol) = make_tree_vec (2);
PROTOCOL_NAME (protocol) = name;
PROTOCOL_LIST (protocol) = lookup_and_install_protocols (list);
add_protocol (protocol);
PROTOCOL_DEFINED (protocol) = 1;
PROTOCOL_FORWARD_DECL (protocol) = NULL_TREE;
check_protocol_recursively (protocol, list);
}
else if (! PROTOCOL_DEFINED (protocol))
{
PROTOCOL_DEFINED (protocol) = 1;
PROTOCOL_LIST (protocol) = lookup_and_install_protocols (list);
check_protocol_recursively (protocol, list);
}
else
{
warning ("duplicate declaration for protocol `%s'",
IDENTIFIER_POINTER (name));
}
if (flag_gen_index)
{
tree pnode = PROTOCOL_LIST (protocol);
gen_indexing_info (INDEX_PROTOCOL_BEGIN,
IDENTIFIER_POINTER (OBJC_TYPE_NAME (protocol)),
lineno);
if (pnode)
{
for (; pnode; pnode = TREE_CHAIN (pnode))
{
tree pdecl = TREE_VALUE (pnode);
gen_indexing_info (INDEX_PROTOCOL_INHERITANCE,
IDENTIFIER_POINTER (OBJC_TYPE_NAME (pdecl)),
0);
}
}
}
return protocol;
}
void
finish_protocol (protocol)
tree protocol;
{
if (flag_gen_index)
gen_indexing_info (INDEX_PROTOCOL_END,
IDENTIFIER_POINTER (OBJC_TYPE_NAME (protocol)),
lineno);
}
static void
encode_type_qualifiers (declspecs)
tree declspecs;
{
tree spec;
for (spec = declspecs; spec; spec = TREE_CHAIN (spec))
{
if (ridpointers[(int) RID_CONST] == TREE_VALUE (spec))
obstack_1grow (&util_obstack, 'r');
else if (ridpointers[(int) RID_IN] == TREE_VALUE (spec))
obstack_1grow (&util_obstack, 'n');
else if (ridpointers[(int) RID_INOUT] == TREE_VALUE (spec))
obstack_1grow (&util_obstack, 'N');
else if (ridpointers[(int) RID_OUT] == TREE_VALUE (spec))
obstack_1grow (&util_obstack, 'o');
else if (ridpointers[(int) RID_BYCOPY] == TREE_VALUE (spec))
obstack_1grow (&util_obstack, 'O');
else if (ridpointers[(int) RID_BYREF] == TREE_VALUE (spec))
obstack_1grow (&util_obstack, 'R');
else if (ridpointers[(int) RID_ONEWAY] == TREE_VALUE (spec))
obstack_1grow (&util_obstack, 'V');
}
}
static void
encode_pointer (type, curtype, format)
tree type;
int curtype;
int format;
{
tree pointer_to = TREE_TYPE (type);
if (TREE_CODE (pointer_to) == RECORD_TYPE)
{
if (OBJC_TYPE_NAME (pointer_to)
&& TREE_CODE (OBJC_TYPE_NAME (pointer_to)) == IDENTIFIER_NODE)
{
const char *name = IDENTIFIER_POINTER (OBJC_TYPE_NAME (pointer_to));
if (strcmp (name, TAG_OBJECT) == 0)
{
obstack_1grow (&util_obstack, '@');
return;
}
else if (TREE_STATIC_TEMPLATE (pointer_to))
{
if (generating_instance_variables)
{
obstack_1grow (&util_obstack, '@');
obstack_1grow (&util_obstack, '"');
obstack_grow (&util_obstack, name, strlen (name));
obstack_1grow (&util_obstack, '"');
return;
}
else
{
obstack_1grow (&util_obstack, '@');
return;
}
}
else if (strcmp (name, TAG_CLASS) == 0)
{
obstack_1grow (&util_obstack, '#');
return;
}
else if (strcmp (name, TAG_SELECTOR) == 0)
{
obstack_1grow (&util_obstack, ':');
return;
}
}
}
else if (TREE_CODE (pointer_to) == INTEGER_TYPE
&& TYPE_MODE (pointer_to) == QImode)
{
tree pname = TREE_CODE (OBJC_TYPE_NAME (pointer_to)) == IDENTIFIER_NODE
? OBJC_TYPE_NAME (pointer_to)
: DECL_NAME (OBJC_TYPE_NAME (pointer_to));
if (!!strcmp (IDENTIFIER_POINTER (pname), "BOOL"))
{
obstack_1grow (&util_obstack, '*');
return;
}
}
obstack_1grow (&util_obstack, '^');
encode_type (pointer_to, curtype, format);
}
static void
encode_array (type, curtype, format)
tree type;
int curtype;
int format;
{
tree an_int_cst = TYPE_SIZE (type);
tree array_of = TREE_TYPE (type);
char buffer[40];
if (an_int_cst == NULL)
{
encode_pointer (type, curtype, format);
return;
}
sprintf (buffer, "[%ld",
(long) (TREE_INT_CST_LOW (an_int_cst)
/ TREE_INT_CST_LOW (TYPE_SIZE (array_of))));
obstack_grow (&util_obstack, buffer, strlen (buffer));
encode_type (array_of, curtype, format);
obstack_1grow (&util_obstack, ']');
return;
}
static void
encode_aggregate_within (type, curtype, format, left, right)
tree type;
int curtype;
int format;
int left;
int right;
{
#ifdef OBJCPLUS
tree name, fields;
#endif
if (TYPE_MAIN_VARIANT (type))
type = TYPE_MAIN_VARIANT (type);
#ifdef OBJCPLUS
name = TYPE_NAME (type);
fields = TYPE_FIELDS (type);
if(name && TREE_CODE (name) == TYPE_DECL && DECL_NAME (name)) {
name = DECL_NAME (name);
}
#endif
if (obstack_object_size (&util_obstack) > 0
&& *(obstack_next_free (&util_obstack) - 1) == '^')
{
tree name = OBJC_TYPE_NAME (type);
if (obstack_object_size (&util_obstack) - curtype == 1
&& format == OBJC_ENCODE_INLINE_DEFS)
{
tree fields = TYPE_FIELDS (type);
if (name && TREE_CODE (name) == IDENTIFIER_NODE)
{
obstack_1grow (&util_obstack, left);
obstack_grow (&util_obstack,
IDENTIFIER_POINTER (name),
strlen (IDENTIFIER_POINTER (name)));
obstack_1grow (&util_obstack, '=');
}
else
{
obstack_1grow (&util_obstack, left);
obstack_grow (&util_obstack, "?=", 2);
}
for ( ; fields; fields = TREE_CHAIN (fields))
encode_field_decl (fields, curtype, format);
obstack_1grow (&util_obstack, right);
}
else if (name && TREE_CODE (name) == IDENTIFIER_NODE)
{
obstack_1grow (&util_obstack, left);
obstack_grow (&util_obstack,
IDENTIFIER_POINTER (name),
strlen (IDENTIFIER_POINTER (name)));
obstack_1grow (&util_obstack, right);
}
else
{
obstack_1grow (&util_obstack, left);
obstack_1grow (&util_obstack, '?');
obstack_1grow (&util_obstack, right);
}
}
else
{
tree name = OBJC_TYPE_NAME (type);
tree fields = TYPE_FIELDS (type);
if (format == OBJC_ENCODE_INLINE_DEFS
|| generating_instance_variables)
{
obstack_1grow (&util_obstack, left);
if (name && TREE_CODE (name) == IDENTIFIER_NODE)
obstack_grow (&util_obstack,
IDENTIFIER_POINTER (name),
strlen (IDENTIFIER_POINTER (name)));
else
obstack_1grow (&util_obstack, '?');
obstack_1grow (&util_obstack, '=');
for (; fields; fields = TREE_CHAIN (fields))
{
if (generating_instance_variables)
{
tree fname = DECL_NAME (fields);
obstack_1grow (&util_obstack, '"');
if (fname && TREE_CODE (fname) == IDENTIFIER_NODE)
{
obstack_grow (&util_obstack,
IDENTIFIER_POINTER (fname),
strlen (IDENTIFIER_POINTER (fname)));
}
obstack_1grow (&util_obstack, '"');
}
encode_field_decl (fields, curtype, format);
}
obstack_1grow (&util_obstack, right);
}
else
{
obstack_1grow (&util_obstack, left);
if (name && TREE_CODE (name) == IDENTIFIER_NODE)
obstack_grow (&util_obstack,
IDENTIFIER_POINTER (name),
strlen (IDENTIFIER_POINTER (name)));
else
obstack_1grow (&util_obstack, '?');
obstack_1grow (&util_obstack, right);
}
}
}
static void
encode_aggregate (type, curtype, format)
tree type;
int curtype;
int format;
{
enum tree_code code = TREE_CODE (type);
switch (code)
{
case RECORD_TYPE:
{
encode_aggregate_within(type, curtype, format, '{', '}');
break;
}
case UNION_TYPE:
{
encode_aggregate_within(type, curtype, format, '(', ')');
break;
}
case ENUMERAL_TYPE:
obstack_1grow (&util_obstack, 'i');
break;
default:
break;
}
}
static void
encode_bitfield (width)
int width;
{
char buffer[40];
sprintf (buffer, "b%d", width);
obstack_grow (&util_obstack, buffer, strlen (buffer));
}
static void
encode_type (type, curtype, format)
tree type;
int curtype;
int format;
{
enum tree_code code = TREE_CODE (type);
if (code == INTEGER_TYPE)
{
if (integer_zerop (TYPE_MIN_VALUE (type)))
{
if (TYPE_MODE (type) == QImode)
obstack_1grow (&util_obstack, 'C');
else if (TYPE_MODE (type) == HImode)
obstack_1grow (&util_obstack, 'S');
else if (TYPE_MODE (type) == SImode)
{
if (type == long_unsigned_type_node)
obstack_1grow (&util_obstack, 'L');
else
obstack_1grow (&util_obstack, 'I');
}
else if (TYPE_MODE (type) == DImode)
obstack_1grow (&util_obstack, 'Q');
}
else
{
if (TYPE_MODE (type) == QImode)
obstack_1grow (&util_obstack, 'c');
else if (TYPE_MODE (type) == HImode)
obstack_1grow (&util_obstack, 's');
else if (TYPE_MODE (type) == SImode)
{
if (type == long_integer_type_node)
obstack_1grow (&util_obstack, 'l');
else
obstack_1grow (&util_obstack, 'i');
}
else if (TYPE_MODE (type) == DImode)
obstack_1grow (&util_obstack, 'q');
}
}
else if (code == REAL_TYPE)
{
if (TYPE_MODE (type) == SFmode)
obstack_1grow (&util_obstack, 'f');
else if (TYPE_MODE (type) == DFmode
|| TYPE_MODE (type) == TFmode)
obstack_1grow (&util_obstack, 'd');
}
else if (code == VOID_TYPE)
obstack_1grow (&util_obstack, 'v');
else if (code == ARRAY_TYPE)
encode_array (type, curtype, format);
else if (code == POINTER_TYPE)
encode_pointer (type, curtype, format);
else if (code == RECORD_TYPE || code == UNION_TYPE || code == ENUMERAL_TYPE)
encode_aggregate (type, curtype, format);
else if (code == FUNCTION_TYPE)
obstack_1grow (&util_obstack, '?');
}
static void
encode_complete_bitfield (position, type, size)
int position;
tree type;
int size;
{
enum tree_code code = TREE_CODE (type);
char buffer[40];
char charType = '?';
if (code == INTEGER_TYPE)
{
if (integer_zerop (TYPE_MIN_VALUE (type)))
{
if (TYPE_MODE (type) == QImode)
charType = 'C';
else if (TYPE_MODE (type) == HImode)
charType = 'S';
else if (TYPE_MODE (type) == SImode)
{
if (type == long_unsigned_type_node)
charType = 'L';
else
charType = 'I';
}
else if (TYPE_MODE (type) == DImode)
charType = 'Q';
}
else
{
if (TYPE_MODE (type) == QImode)
charType = 'c';
else if (TYPE_MODE (type) == HImode)
charType = 's';
else if (TYPE_MODE (type) == SImode)
{
if (type == long_integer_type_node)
charType = 'l';
else
charType = 'i';
}
else if (TYPE_MODE (type) == DImode)
charType = 'q';
}
}
else if (code == ENUMERAL_TYPE)
charType = 'i';
else
abort ();
sprintf (buffer, "b%d%c%d", position, charType, size);
obstack_grow (&util_obstack, buffer, strlen (buffer));
}
static void
encode_field_decl (field_decl, curtype, format)
tree field_decl;
int curtype;
int format;
{
tree type;
#ifdef OBJCPLUS
if (TREE_CODE (field_decl) != FIELD_DECL || TREE_STATIC (field_decl))
return;
#endif
type = TREE_TYPE (field_decl);
if (flag_next_runtime)
{
if (DECL_BIT_FIELD_TYPE (field_decl))
encode_bitfield (tree_low_cst (DECL_SIZE (field_decl), 1));
else
encode_type (TREE_TYPE (field_decl), curtype, format);
}
else
{
if (DECL_BIT_FIELD_TYPE (field_decl))
encode_complete_bitfield (int_bit_position (field_decl),
DECL_BIT_FIELD_TYPE (field_decl),
tree_low_cst (DECL_SIZE (field_decl), 1));
else
encode_type (TREE_TYPE (field_decl), curtype, format);
}
}
static tree
expr_last (complex_expr)
tree complex_expr;
{
tree next;
if (complex_expr)
while ((next = TREE_OPERAND (complex_expr, 0)))
complex_expr = next;
return complex_expr;
}
static void
synth_self_and_ucmd_args ()
{
tree decl_specs;
if (objc_method_context
&& TREE_CODE (objc_method_context) == INSTANCE_METHOD_DECL)
decl_specs = build_tree_list (NULL_TREE, uprivate_record);
else
decl_specs = build_tree_list (NULL_TREE, objc_object_reference);
push_parm_decl (build_tree_list
(build_tree_list (decl_specs,
build1 (INDIRECT_REF, NULL_TREE, self_id)),
unused_list));
decl_specs = build_tree_list (NULL_TREE,
xref_tag (RECORD_TYPE,
get_identifier (TAG_SELECTOR)));
push_parm_decl (build_tree_list
(build_tree_list (decl_specs,
build1 (INDIRECT_REF, NULL_TREE, ucmd_id)),
unused_list));
}
void
start_method_def (method)
tree method;
{
objc_method_context = method;
UOBJC_SUPER_decl = NULL_TREE;
pushlevel (0);
synth_self_and_ucmd_args ();
if (METHOD_SEL_ARGS (method))
{
tree arglist = METHOD_SEL_ARGS (method);
do
{
tree arg_spec = TREE_PURPOSE (TREE_TYPE (arglist));
tree arg_decl = TREE_VALUE (TREE_TYPE (arglist));
if (arg_decl)
{
tree last_expr = expr_last (arg_decl);
TREE_OPERAND (last_expr, 0) = KEYWORD_ARG_NAME (arglist);
push_parm_decl (build_tree_list
(build_tree_list (arg_spec, arg_decl),
NULL_TREE));
#ifndef OBJCPLUS
TREE_OPERAND (last_expr, 0) = NULL_TREE;
#endif
}
else
push_parm_decl (build_tree_list
(build_tree_list (arg_spec,
KEYWORD_ARG_NAME (arglist)),
NULL_TREE));
arglist = TREE_CHAIN (arglist);
}
while (arglist);
}
if (METHOD_ADD_ARGS (method) != NULL_TREE
&& METHOD_ADD_ARGS (method) != objc_ellipsis_node)
{
tree akey = TREE_PURPOSE (METHOD_ADD_ARGS (method));
while (akey)
{
tree nextkey = TREE_CHAIN (akey);
pushdecl (akey);
akey = nextkey;
}
}
if (flag_gen_index && TREE_CODE (method) == INSTANCE_METHOD_DECL)
gen_indexing_info (INDEX_INSTANCE_METHOD_BEGIN,
IDENTIFIER_POINTER (DECL_NAME (method)),
lineno);
else if (flag_gen_index && TREE_CODE (method) == CLASS_METHOD_DECL)
gen_indexing_info (INDEX_CLASS_METHOD_BEGIN,
IDENTIFIER_POINTER (DECL_NAME (method)),
lineno);
}
static void
warn_with_method (message, mtype, method)
const char *message;
int mtype;
tree method;
{
if (!diagnostic_count_diagnostic (global_dc, DK_WARNING))
return;
diagnostic_report_current_function (global_dc);
warning_with_file_and_line (DECL_SOURCE_FILE (method),
DECL_SOURCE_LINE (method),
"%s `%c%s'",
message, mtype,
gen_method_decl (method, errbuf));
}
static int
comp_method_with_proto (method, proto)
tree method, proto;
{
if (!function1_template)
function1_template = make_node (FUNCTION_TYPE);
TYPE_ARG_TYPES (function1_template) = get_arg_type_list (proto, METHOD_DEF, 0);
TREE_TYPE (function1_template) = groktypename (TREE_TYPE (proto));
return comptypes (TREE_TYPE (METHOD_DEFINITION (method)), function1_template);
}
static int
comp_proto_with_proto (proto0, proto1)
tree proto0, proto1;
{
if (!function1_template)
function1_template = make_node (FUNCTION_TYPE);
if (!function2_template)
function2_template = make_node (FUNCTION_TYPE);
TYPE_ARG_TYPES (function1_template) = get_arg_type_list (proto0, METHOD_REF, 0);
TYPE_ARG_TYPES (function2_template) = get_arg_type_list (proto1, METHOD_REF, 0);
TREE_TYPE (function1_template) = groktypename (TREE_TYPE (proto0));
TREE_TYPE (function2_template) = groktypename (TREE_TYPE (proto1));
return comptypes (function1_template, function2_template);
}
static void
really_start_method (method, parmlist)
tree method, parmlist;
{
tree sc_spec, ret_spec, ret_decl, decl_specs;
tree method_decl, method_id;
const char *sel_name, *class_name, *cat_name;
char *buf;
sc_spec = tree_cons (NULL_TREE, ridpointers[(int) RID_STATIC], NULL_TREE);
ret_spec = TREE_PURPOSE (TREE_TYPE (method));
decl_specs = chainon (sc_spec, ret_spec);
sel_name = IDENTIFIER_POINTER (METHOD_SEL_NAME (method));
class_name = IDENTIFIER_POINTER (CLASS_NAME (objc_implementation_context));
cat_name = ((TREE_CODE (objc_implementation_context)
== CLASS_IMPLEMENTATION_TYPE)
? NULL
: IDENTIFIER_POINTER (CLASS_SUPER_NAME (objc_implementation_context)));
method_slot++;
buf = (char *) alloca (50 + strlen (sel_name) + strlen (class_name)
+ (cat_name ? strlen (cat_name) : 0));
OBJC_GEN_METHOD_LABEL (buf, TREE_CODE (method) == INSTANCE_METHOD_DECL,
class_name, cat_name, sel_name, method_slot);
method_id = get_identifier (buf);
#ifdef OBJCPLUS
push_lang_context (lang_name_c);
#endif
method_decl = build_nt (CALL_EXPR, method_id, parmlist, NULL_TREE);
if ((ret_decl = TREE_VALUE (TREE_TYPE (method))))
{
tree save_expr = expr_last (ret_decl);
TREE_OPERAND (save_expr, 0) = method_decl;
method_decl = ret_decl;
start_function (decl_specs, method_decl, NULL_TREE);
TREE_OPERAND (save_expr, 0) = NULL_TREE;
}
else
{
TREE_VALUE (TREE_TYPE (method)) = method_decl;
start_function (decl_specs, method_decl, NULL_TREE);
TREE_VALUE (TREE_TYPE (method)) = NULL_TREE;
}
#ifdef OBJCPLUS
self_decl = DECL_ARGUMENTS (current_function_decl);
TREE_USED (self_decl) = 1;
TREE_USED (TREE_CHAIN (self_decl)) = 1;
TREE_USED (current_function_decl) = 1;
pop_lang_context ();
#endif
METHOD_DEFINITION (method) = current_function_decl;
if (implementation_template != objc_implementation_context)
{
tree proto;
if (TREE_CODE (method) == INSTANCE_METHOD_DECL)
proto = lookup_instance_method_static (implementation_template,
METHOD_SEL_NAME (method));
else
proto = lookup_class_method_static (implementation_template,
METHOD_SEL_NAME (method));
if (proto && ! comp_method_with_proto (method, proto))
{
char type = (TREE_CODE (method) == INSTANCE_METHOD_DECL ? '-' : '+');
warn_with_method ("conflicting types for", type, method);
warn_with_method ("previous declaration of", type, proto);
}
}
}
void
continue_method_def ()
{
tree parmlist;
if (METHOD_ADD_ARGS (objc_method_context) == objc_ellipsis_node)
parmlist = get_parm_info (0);
else
parmlist = get_parm_info (1);
#ifndef OBJCPLUS
self_decl = TREE_PURPOSE (parmlist);
#endif
poplevel (0, 0, 0);
really_start_method (objc_method_context, parmlist);
store_parm_decls ();
}
static void *UOBJC_SUPER_binding_level = 0;
tree
get_super_receiver ()
{
if (objc_method_context)
{
tree super_expr, super_expr_list;
if (!UOBJC_SUPER_decl)
{
flag_suppress_builtin_indexing = 1;
UOBJC_SUPER_decl = start_decl (get_identifier (TAG_SUPER),
build_tree_list (NULL_TREE,
objc_super_template),
0, NULL_TREE);
finish_decl (UOBJC_SUPER_decl, NULL_TREE, NULL_TREE);
TREE_USED (UOBJC_SUPER_decl) = 1;
DECL_ARTIFICIAL (UOBJC_SUPER_decl) = 1;
UOBJC_SUPER_binding_level = get_current_binding_level ();
flag_suppress_builtin_indexing = 0;
}
super_expr = build_component_ref (UOBJC_SUPER_decl, self_id);
super_expr = build_modify_expr (super_expr, NOP_EXPR, self_decl);
super_expr_list = build_tree_list (NULL_TREE, super_expr);
super_expr = build_component_ref (UOBJC_SUPER_decl,
get_identifier ("class"));
if (TREE_CODE (objc_implementation_context) == CLASS_IMPLEMENTATION_TYPE)
{
super_expr = build_modify_expr (super_expr, NOP_EXPR,
((TREE_CODE (objc_method_context)
== INSTANCE_METHOD_DECL)
? ucls_super_ref
: uucls_super_ref));
}
else
{
tree super_name = CLASS_SUPER_NAME (implementation_template);
tree super_class;
if (!super_name)
{
error ("no super class declared in interface for `%s'",
IDENTIFIER_POINTER (CLASS_NAME (implementation_template)));
return error_mark_node;
}
if (flag_next_runtime && !flag_zero_link)
{
super_class = get_class_reference (super_name);
if (TREE_CODE (objc_method_context) == CLASS_METHOD_DECL)
super_class
= build_indirect_ref
(build_c_cast (build_pointer_type (objc_class_type),
super_class), "unary *");
}
else
{
add_class_reference (super_name);
super_class = (TREE_CODE (objc_method_context) == INSTANCE_METHOD_DECL
? objc_get_class_decl : objc_get_meta_class_decl);
assemble_external (super_class);
super_class
= build_function_call
(super_class,
build_tree_list
(NULL_TREE,
my_build_string (IDENTIFIER_LENGTH (super_name) + 1,
IDENTIFIER_POINTER (super_name))));
}
super_expr
= build_modify_expr (super_expr, NOP_EXPR,
build_c_cast (TREE_TYPE (super_expr),
super_class));
}
chainon (super_expr_list, build_tree_list (NULL_TREE, super_expr));
super_expr = build_unary_op (ADDR_EXPR, UOBJC_SUPER_decl, 0);
chainon (super_expr_list, build_tree_list (NULL_TREE, super_expr));
return build_compound_expr (super_expr_list);
}
else
{
error ("[super ...] must appear in a method context");
return error_mark_node;
}
}
void
objc_clear_super_receiver ()
{
if (objc_method_context
&& UOBJC_SUPER_binding_level == get_current_binding_level ()) {
UOBJC_SUPER_decl = 0;
UOBJC_SUPER_binding_level = 0;
}
}
static void
objc_expand_function_end ()
{
if (objc_method_context == NULL_TREE
|| DECL_INITIAL (objc_method_context) != current_function_decl)
return;
METHOD_ENCODING (objc_method_context)
= encode_method_prototype (objc_method_context, current_function_decl);
}
void
finish_method_def ()
{
lang_expand_function_end = objc_expand_function_end;
if (flag_gen_index)
gen_indexing_info (INDEX_INSTANCE_METHOD_END, NULL, lineno);
flag_suppress_builtin_indexing = 1;
DECL_INLINE (current_function_decl) = 0;
DECL_UNINLINABLE (current_function_decl) = 1;
current_function_cannot_inline = "methods cannot be inlined";
#ifdef OBJCPLUS
finish_function (0);
#else
finish_function (0, 1);
#endif
lang_expand_function_end = NULL;
objc_method_context = NULL_TREE;
flag_suppress_builtin_indexing = 0;
}
#if 0
int
lang_report_error_function (decl)
tree decl;
{
if (objc_method_context)
{
fprintf (stderr, "In method `%s'\n",
IDENTIFIER_POINTER (METHOD_SEL_NAME (objc_method_context)));
return 1;
}
else
return 0;
}
#endif
static int
is_complex_decl (type)
tree type;
{
return (TREE_CODE (type) == ARRAY_TYPE
|| TREE_CODE (type) == FUNCTION_TYPE
|| (TREE_CODE (type) == POINTER_TYPE && ! IS_ID (type)));
}
static char tmpbuf[256];
static void
adorn_decl (decl, str)
tree decl;
char *str;
{
enum tree_code code = TREE_CODE (decl);
if (code == ARRAY_REF)
{
tree an_int_cst = TREE_OPERAND (decl, 1);
if (an_int_cst && TREE_CODE (an_int_cst) == INTEGER_CST)
sprintf (str + strlen (str), "[%ld]",
(long) TREE_INT_CST_LOW (an_int_cst));
else
strcat (str, "[]");
}
else if (code == ARRAY_TYPE)
{
tree an_int_cst = TYPE_SIZE (decl);
tree array_of = TREE_TYPE (decl);
if (an_int_cst && TREE_CODE (an_int_cst) == INTEGER_TYPE)
sprintf (str + strlen (str), "[%ld]",
(long) (TREE_INT_CST_LOW (an_int_cst)
/ TREE_INT_CST_LOW (TYPE_SIZE (array_of))));
else
strcat (str, "[]");
}
else if (code == CALL_EXPR)
{
tree chain = TREE_PURPOSE (TREE_OPERAND (decl, 1));
strcat (str, "(");
while (chain)
{
gen_declaration_1 (chain, str);
chain = TREE_CHAIN (chain);
if (chain)
strcat (str, ", ");
}
strcat (str, ")");
}
else if (code == FUNCTION_TYPE)
{
tree chain = TYPE_ARG_TYPES (decl);
strcat (str, "(");
while (chain && TREE_VALUE (chain) != void_type_node)
{
gen_declaration_1 (TREE_VALUE (chain), str);
chain = TREE_CHAIN (chain);
if (chain && TREE_VALUE (chain) != void_type_node)
strcat (str, ", ");
}
strcat (str, ")");
}
else if (code == INDIRECT_REF)
{
strcpy (tmpbuf, "*");
if (TREE_TYPE (decl) && TREE_CODE (TREE_TYPE (decl)) == TREE_LIST)
{
tree chain;
for (chain = nreverse (copy_list (TREE_TYPE (decl)));
chain;
chain = TREE_CHAIN (chain))
{
if (TREE_CODE (TREE_VALUE (chain)) == IDENTIFIER_NODE)
{
strcat (tmpbuf, " ");
strcat (tmpbuf, IDENTIFIER_POINTER (TREE_VALUE (chain)));
}
}
if (str[0])
strcat (tmpbuf, " ");
}
strcat (tmpbuf, str);
strcpy (str, tmpbuf);
}
else if (code == POINTER_TYPE)
{
strcpy (tmpbuf, "*");
if (TREE_READONLY (decl) || TYPE_VOLATILE (decl))
{
if (TREE_READONLY (decl))
strcat (tmpbuf, " const");
if (TYPE_VOLATILE (decl))
strcat (tmpbuf, " volatile");
if (str[0])
strcat (tmpbuf, " ");
}
strcat (tmpbuf, str);
strcpy (str, tmpbuf);
}
}
static char *
gen_declarator (decl, buf, name)
tree decl;
char *buf;
const char *name;
{
if (decl)
{
enum tree_code code = TREE_CODE (decl);
char *str;
tree op;
int wrap = 0;
switch (code)
{
case ARRAY_REF:
case INDIRECT_REF:
case CALL_EXPR:
op = TREE_OPERAND (decl, 0);
if ((code == ARRAY_REF || code == CALL_EXPR)
&& op && TREE_CODE (op) == INDIRECT_REF)
wrap = 1;
str = gen_declarator (op, buf, name);
if (wrap)
{
strcpy (tmpbuf, "(");
strcat (tmpbuf, str);
strcat (tmpbuf, ")");
strcpy (str, tmpbuf);
}
adorn_decl (decl, str);
break;
case ARRAY_TYPE:
case FUNCTION_TYPE:
case POINTER_TYPE:
strcpy (buf, name);
str = buf;
do
{
op = (is_complex_decl (TREE_TYPE (decl))
? TREE_TYPE (decl) : NULL_TREE);
adorn_decl (decl, str);
if (code == POINTER_TYPE
&& op && (TREE_CODE (op) == FUNCTION_TYPE
|| TREE_CODE (op) == ARRAY_TYPE))
{
strcpy (tmpbuf, "(");
strcat (tmpbuf, str);
strcat (tmpbuf, ")");
strcpy (str, tmpbuf);
}
decl = (is_complex_decl (TREE_TYPE (decl))
? TREE_TYPE (decl) : NULL_TREE);
}
while (decl && (code = TREE_CODE (decl)))
;
break;
case IDENTIFIER_NODE:
strcpy (buf, IDENTIFIER_POINTER (decl));
return buf;
default:
abort ();
}
return str;
}
else
{
strcpy (buf, name);
return buf;
}
}
static void
gen_declspecs (declspecs, buf, raw)
tree declspecs;
char *buf;
int raw;
{
if (raw)
{
tree chain;
for (chain = nreverse (copy_list (declspecs));
chain; chain = TREE_CHAIN (chain))
{
tree aspec = TREE_VALUE (chain);
if (TREE_CODE (aspec) == IDENTIFIER_NODE)
strcat (buf, IDENTIFIER_POINTER (aspec));
else if (TREE_CODE (aspec) == RECORD_TYPE)
{
if (OBJC_TYPE_NAME (aspec))
{
tree protocol_list = TYPE_PROTOCOL_LIST (aspec);
if (! TREE_STATIC_TEMPLATE (aspec))
strcat (buf, "struct ");
strcat (buf, IDENTIFIER_POINTER (OBJC_TYPE_NAME (aspec)));
if (protocol_list)
{
tree chain = protocol_list;
strcat (buf, " <");
while (chain)
{
strcat (buf,
IDENTIFIER_POINTER
(PROTOCOL_NAME (TREE_VALUE (chain))));
chain = TREE_CHAIN (chain);
if (chain)
strcat (buf, ", ");
}
strcat (buf, ">");
}
}
else
strcat (buf, "untagged struct");
}
else if (TREE_CODE (aspec) == UNION_TYPE)
{
if (OBJC_TYPE_NAME (aspec))
{
if (! TREE_STATIC_TEMPLATE (aspec))
strcat (buf, "union ");
strcat (buf, IDENTIFIER_POINTER (OBJC_TYPE_NAME (aspec)));
}
else
strcat (buf, "untagged union");
}
else if (TREE_CODE (aspec) == ENUMERAL_TYPE)
{
if (OBJC_TYPE_NAME (aspec))
{
if (! TREE_STATIC_TEMPLATE (aspec))
strcat (buf, "enum ");
strcat (buf, IDENTIFIER_POINTER (OBJC_TYPE_NAME (aspec)));
}
else
strcat (buf, "untagged enum");
}
else if (TREE_CODE (aspec) == TYPE_DECL && DECL_NAME (aspec))
strcat (buf, IDENTIFIER_POINTER (DECL_NAME (aspec)));
else if (IS_ID (aspec))
{
tree protocol_list = TYPE_PROTOCOL_LIST (aspec);
strcat (buf, "id");
if (protocol_list)
{
tree chain = protocol_list;
strcat (buf, " <");
while (chain)
{
strcat (buf,
IDENTIFIER_POINTER
(PROTOCOL_NAME (TREE_VALUE (chain))));
chain = TREE_CHAIN (chain);
if (chain)
strcat (buf, ", ");
}
strcat (buf, ">");
}
}
if (TREE_CHAIN (chain))
strcat (buf, " ");
}
}
else
{
if (TREE_READONLY (declspecs))
strcat (buf, "const ");
if (TYPE_VOLATILE (declspecs))
strcat (buf, "volatile ");
switch (TREE_CODE (declspecs))
{
case INTEGER_TYPE:
declspecs = TYPE_MAIN_VARIANT (declspecs);
if (declspecs == short_integer_type_node)
strcat (buf, "short int ");
else if (declspecs == integer_type_node)
strcat (buf, "int ");
else if (declspecs == long_integer_type_node)
strcat (buf, "long int ");
else if (declspecs == long_long_integer_type_node)
strcat (buf, "long long int ");
else if (declspecs == signed_char_type_node
|| declspecs == char_type_node)
strcat (buf, "char ");
else if (declspecs == short_unsigned_type_node)
strcat (buf, "unsigned short ");
else if (declspecs == unsigned_type_node)
strcat (buf, "unsigned int ");
else if (declspecs == long_unsigned_type_node)
strcat (buf, "unsigned long ");
else if (declspecs == long_long_unsigned_type_node)
strcat (buf, "unsigned long long ");
else if (declspecs == unsigned_char_type_node)
strcat (buf, "unsigned char ");
break;
case REAL_TYPE:
declspecs = TYPE_MAIN_VARIANT (declspecs);
if (declspecs == float_type_node)
strcat (buf, "float ");
else if (declspecs == double_type_node)
strcat (buf, "double ");
else if (declspecs == long_double_type_node)
strcat (buf, "long double ");
break;
case RECORD_TYPE:
if (OBJC_TYPE_NAME (declspecs)
&& TREE_CODE (OBJC_TYPE_NAME (declspecs)) == IDENTIFIER_NODE)
{
tree protocol_list = TYPE_PROTOCOL_LIST (declspecs);
if (! TREE_STATIC_TEMPLATE (declspecs))
strcat (buf, "struct ");
strcat (buf, IDENTIFIER_POINTER (OBJC_TYPE_NAME (declspecs)));
if (protocol_list)
{
tree chain = protocol_list;
strcat (buf, " <");
while (chain)
{
strcat (buf,
IDENTIFIER_POINTER
(PROTOCOL_NAME (TREE_VALUE (chain))));
chain = TREE_CHAIN (chain);
if (chain)
strcat (buf, ", ");
}
strcat (buf, ">");
}
}
else
strcat (buf, "untagged struct");
strcat (buf, " ");
break;
case UNION_TYPE:
if (OBJC_TYPE_NAME (declspecs)
&& TREE_CODE (OBJC_TYPE_NAME (declspecs)) == IDENTIFIER_NODE)
{
strcat (buf, "union ");
strcat (buf, IDENTIFIER_POINTER (OBJC_TYPE_NAME (declspecs)));
strcat (buf, " ");
}
else
strcat (buf, "untagged union ");
break;
case ENUMERAL_TYPE:
if (OBJC_TYPE_NAME (declspecs)
&& TREE_CODE (OBJC_TYPE_NAME (declspecs)) == IDENTIFIER_NODE)
{
strcat (buf, "enum ");
strcat (buf, IDENTIFIER_POINTER (OBJC_TYPE_NAME (declspecs)));
strcat (buf, " ");
}
else
strcat (buf, "untagged enum ");
break;
case VOID_TYPE:
strcat (buf, "void ");
break;
case POINTER_TYPE:
{
tree protocol_list = TYPE_PROTOCOL_LIST (declspecs);
strcat (buf, "id");
if (protocol_list)
{
tree chain = protocol_list;
strcat (buf, " <");
while (chain)
{
strcat (buf,
IDENTIFIER_POINTER
(PROTOCOL_NAME (TREE_VALUE (chain))));
chain = TREE_CHAIN (chain);
if (chain)
strcat (buf, ", ");
}
strcat (buf, ">");
}
}
break;
default:
break;
}
}
}
static char *
gen_declaration (atype_or_adecl, buf)
tree atype_or_adecl;
char *buf;
{
buf[0] = '\0';
gen_declaration_1 (atype_or_adecl, buf);
return buf;
}
static void
gen_declaration_1 (atype_or_adecl, buf)
tree atype_or_adecl;
char *buf;
{
char declbuf[256];
if (TREE_CODE (atype_or_adecl) == TREE_LIST)
{
tree declspecs;
tree declarator;
declarator = TREE_VALUE (atype_or_adecl);
declspecs = TREE_PURPOSE (atype_or_adecl);
gen_declspecs (declspecs, buf, 1);
if (declarator)
{
strcat (buf, " ");
strcat (buf, gen_declarator (declarator, declbuf, ""));
}
}
else
{
tree atype;
tree declspecs;
tree declarator;
if (TREE_CODE (atype_or_adecl) == FIELD_DECL
|| TREE_CODE (atype_or_adecl) == PARM_DECL
|| TREE_CODE (atype_or_adecl) == FUNCTION_DECL)
atype = TREE_TYPE (atype_or_adecl);
else
atype = atype_or_adecl;
if (is_complex_decl (atype))
{
tree chain;
declarator = chain = atype;
do
chain = TREE_TYPE (chain);
while (is_complex_decl (chain));
declspecs = chain;
}
else
{
declspecs = atype;
declarator = NULL_TREE;
}
gen_declspecs (declspecs, buf, 0);
if (TREE_CODE (atype_or_adecl) == FIELD_DECL
|| TREE_CODE (atype_or_adecl) == PARM_DECL
|| TREE_CODE (atype_or_adecl) == FUNCTION_DECL)
{
const char *const decl_name =
(DECL_NAME (atype_or_adecl)
? IDENTIFIER_POINTER (DECL_NAME (atype_or_adecl)) : "");
if (declarator)
{
strcat (buf, " ");
strcat (buf, gen_declarator (declarator, declbuf, decl_name));
}
else if (decl_name[0])
{
strcat (buf, " ");
strcat (buf, decl_name);
}
}
else if (declarator)
{
strcat (buf, " ");
strcat (buf, gen_declarator (declarator, declbuf, ""));
}
}
}
#define RAW_TYPESPEC(meth) (TREE_VALUE (TREE_PURPOSE (TREE_TYPE (meth))))
static char *
gen_method_decl (method, buf)
tree method;
char *buf;
{
tree chain;
buf[0] = '\0';
if (RAW_TYPESPEC (method) != objc_object_reference)
{
strcat (buf, "(");
gen_declaration_1 (TREE_TYPE (method), buf);
strcat (buf, ")");
}
chain = METHOD_SEL_ARGS (method);
if (chain)
{
do
{
if (KEYWORD_KEY_NAME (chain))
strcat (buf, IDENTIFIER_POINTER (KEYWORD_KEY_NAME (chain)));
strcat (buf, ":");
if (RAW_TYPESPEC (chain) != objc_object_reference)
{
strcat (buf, "(");
gen_declaration_1 (TREE_TYPE (chain), buf);
strcat (buf, ")");
}
strcat (buf, IDENTIFIER_POINTER (KEYWORD_ARG_NAME (chain)));
if ((chain = TREE_CHAIN (chain)))
strcat (buf, " ");
}
while (chain);
if (METHOD_ADD_ARGS (method) == objc_ellipsis_node)
strcat (buf, ", ...");
else if (METHOD_ADD_ARGS (method))
{
chain = TREE_PURPOSE (METHOD_ADD_ARGS (method));
while (chain)
{
strcat (buf, ", ");
gen_declaration_1 (chain, buf);
chain = TREE_CHAIN (chain);
}
}
}
else
strcat (buf, IDENTIFIER_POINTER (METHOD_SEL_NAME (method)));
return buf;
}
static void
dump_interface (fp, chain)
FILE *fp;
tree chain;
{
char *buf = (char *) xmalloc (1024 * 10);
const char *my_name = IDENTIFIER_POINTER (CLASS_NAME (chain));
tree ivar_decls = CLASS_RAW_IVARS (chain);
tree nst_methods = CLASS_NST_METHODS (chain);
tree cls_methods = CLASS_CLS_METHODS (chain);
fprintf (fp, "\n@interface %s", my_name);
if (CLASS_SUPER_NAME (chain))
{
const char *name = IDENTIFIER_POINTER (CLASS_SUPER_NAME (chain));
if (TREE_CODE (chain) == CATEGORY_IMPLEMENTATION_TYPE
|| TREE_CODE (chain) == CATEGORY_INTERFACE_TYPE)
{
fprintf (fp, " (%s)\n", name);
}
else
{
fprintf (fp, " : %s\n", name);
}
}
else
fprintf (fp, "\n");
if (ivar_decls)
{
fprintf (fp, "{\n");
do
{
fprintf (fp, "\t%s;\n", gen_declaration (ivar_decls, buf));
ivar_decls = TREE_CHAIN (ivar_decls);
}
while (ivar_decls);
fprintf (fp, "}\n");
}
while (nst_methods)
{
fprintf (fp, "- %s;\n", gen_method_decl (nst_methods, buf));
nst_methods = TREE_CHAIN (nst_methods);
}
while (cls_methods)
{
fprintf (fp, "+ %s;\n", gen_method_decl (cls_methods, buf));
cls_methods = TREE_CHAIN (cls_methods);
}
fprintf (fp, "@end\n");
}
static const char *
objc_demangle (mangled)
const char *mangled;
{
char *demangled, *cp;
if (mangled[0] == '_' &&
(mangled[1] == 'i' || mangled[1] == 'c') &&
mangled[2] == '_')
{
cp = demangled = xmalloc(strlen(mangled) + 2);
if (mangled[1] == 'i')
*cp++ = '-';
else
*cp++ = '+';
*cp++ = '[';
strcpy(cp, mangled+3);
while (*cp && *cp == '_')
cp++;
cp = strchr(cp, '_');
if (cp == NULL)
{
free(demangled);
return mangled;
}
if (cp[1] == '_')
{
*cp++ = ' ';
strcpy(cp, mangled + (cp - demangled) + 2);
}
else
{
*cp++ = '(';
cp = strchr(cp, '_');
if (cp == 0)
{
free(demangled);
return mangled;
}
*cp++ = ')';
*cp++ = ' ';
strcpy(cp, mangled + (cp - demangled));
}
while (*cp && *cp == '_')
cp++;
for (; *cp; cp++)
if (*cp == '_')
*cp = ':';
*cp++ = ']';
*cp++ = 0;
return demangled;
}
else
return mangled;
}
const char *
objc_printable_name (decl, kind)
tree decl;
int kind ATTRIBUTE_UNUSED;
{
return objc_demangle (IDENTIFIER_POINTER (DECL_NAME (decl)));
}
static void
init_objc ()
{
flag_suppress_builtin_indexing = 1;
gcc_obstack_init (&util_obstack);
util_firstobj = (char *) obstack_finish (&util_obstack);
errbuf = (char *) xmalloc (BUFSIZE);
hash_init ();
synth_module_prologue ();
flag_suppress_builtin_indexing = 0;
}
static void
finish_objc ()
{
struct imp_entry *impent;
tree chain;
int save_warn_missing_braces = warn_missing_braces;
warn_missing_braces = 0;
flag_suppress_builtin_indexing = 1;
if (objc_implementation_context)
{
warning ("`@end' missing in implementation context");
finish_class (objc_implementation_context);
objc_ivar_chain = NULL_TREE;
objc_implementation_context = NULL_TREE;
}
generate_forward_declaration_to_string_table ();
#ifdef OBJC_PROLOGUE
OBJC_PROLOGUE;
#endif
if (objc_static_instances)
generate_static_references ();
if (imp_list || class_names_chain
|| meth_var_names_chain || meth_var_types_chain || sel_ref_chain)
generate_objc_symtab_decl ();
for (impent = imp_list; impent; impent = impent->next)
{
objc_implementation_context = impent->imp_context;
implementation_template = impent->imp_template;
UOBJC_CLASS_decl = impent->class_decl;
UOBJC_METACLASS_decl = impent->meta_decl;
if (flag_gen_declaration)
{
dump_interface (gen_declaration_file, objc_implementation_context);
}
if (TREE_CODE (objc_implementation_context) == CLASS_IMPLEMENTATION_TYPE)
{
generate_ivar_lists ();
generate_dispatch_tables ();
generate_shared_structures ();
}
else
{
generate_dispatch_tables ();
generate_category (objc_implementation_context);
}
}
if (! flag_next_runtime || sel_ref_chain)
build_selector_translation_table ();
if (protocol_chain)
generate_protocols ();
if (flag_replace_objc_classes && imp_list)
generate_objc_image_info ();
if (objc_implementation_context || class_names_chain || objc_static_instances
|| meth_var_names_chain || meth_var_types_chain || sel_ref_chain)
{
rtx init_sym = build_module_descriptor ();
if (init_sym && targetm.have_ctors_dtors)
(* targetm.asm_out.constructor) (init_sym, DEFAULT_INIT_PRIORITY);
}
for (chain = cls_ref_chain; chain; chain = TREE_CHAIN (chain))
{
handle_class_ref (chain);
if (TREE_PURPOSE (chain))
generate_classref_translation_entry (chain);
}
for (impent = imp_list; impent; impent = impent->next)
handle_impent (impent);
generate_strings ();
if (warn_selector)
{
int slot;
hash hsh;
for (slot = 0; slot < SIZEHASHTABLE; slot++)
for (hsh = cls_method_hash_list[slot]; hsh; hsh = hsh->next)
if (hsh->list)
{
tree meth = hsh->key;
char type = (TREE_CODE (meth) == INSTANCE_METHOD_DECL
? '-' : '+');
attr loop;
warning ("potential selector conflict for method `%s'",
IDENTIFIER_POINTER (METHOD_SEL_NAME (meth)));
warn_with_method ("found", type, meth);
for (loop = hsh->list; loop; loop = loop->next)
warn_with_method ("found", type, loop->value);
}
for (slot = 0; slot < SIZEHASHTABLE; slot++)
for (hsh = nst_method_hash_list[slot]; hsh; hsh = hsh->next)
if (hsh->list)
{
tree meth = hsh->key;
char type = (TREE_CODE (meth) == INSTANCE_METHOD_DECL
? '-' : '+');
attr loop;
warning ("potential selector conflict for method `%s'",
IDENTIFIER_POINTER (METHOD_SEL_NAME (meth)));
warn_with_method ("found", type, meth);
for (loop = hsh->list; loop; loop = loop->next)
warn_with_method ("found", type, loop->value);
}
}
warn_missing_braces = save_warn_missing_braces;
flag_suppress_builtin_indexing = 0;
}
static void
generate_classref_translation_entry (chain)
tree chain;
{
tree expr, name, decl_specs, decl, sc_spec;
tree type;
type = TREE_TYPE (TREE_PURPOSE (chain));
expr = add_objc_string (TREE_VALUE (chain), class_names);
expr = build_c_cast (type, expr);
name = DECL_NAME (TREE_PURPOSE (chain));
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
decl_specs = tree_cons (NULL_TREE, type, sc_spec);
decl = start_decl (name, decl_specs, 1, NULL_TREE);
DECL_CONTEXT (decl) = NULL_TREE;
finish_decl (decl, expr, NULL_TREE);
return;
}
static void
handle_class_ref (chain)
tree chain;
{
const char *name = IDENTIFIER_POINTER (TREE_VALUE (chain));
char *string = (char *) alloca (strlen (name) + 30);
tree decl;
tree exp;
sprintf (string, "%sobjc_class_name_%s",
(flag_next_runtime ? "." : "__"), name);
#ifdef ASM_DECLARE_UNRESOLVED_REFERENCE
if (flag_next_runtime)
{
ASM_DECLARE_UNRESOLVED_REFERENCE (asm_out_file, string);
return;
}
#endif
decl = build_decl (VAR_DECL, get_identifier (string), char_type_node);
DECL_EXTERNAL (decl) = 1;
TREE_PUBLIC (decl) = 1;
pushdecl (decl);
rest_of_decl_compilation (decl, 0, 0, 0);
sprintf (string, "%sobjc_class_ref_%s",
(flag_next_runtime ? "." : "__"), name);
exp = build1 (ADDR_EXPR, string_type_node, decl);
decl = build_decl (VAR_DECL, get_identifier (string), string_type_node);
DECL_INITIAL (decl) = exp;
TREE_STATIC (decl) = 1;
TREE_USED (decl) = 1;
pushdecl (decl);
rest_of_decl_compilation (decl, 0, 0, 0);
}
static void
handle_impent (impent)
struct imp_entry *impent;
{
char *string;
objc_implementation_context = impent->imp_context;
implementation_template = impent->imp_template;
if (TREE_CODE (impent->imp_context) == CLASS_IMPLEMENTATION_TYPE)
{
const char *const class_name =
IDENTIFIER_POINTER (CLASS_NAME (impent->imp_context));
string = (char *) alloca (strlen (class_name) + 30);
sprintf (string, "%sobjc_class_name_%s",
(flag_next_runtime ? "." : "__"), class_name);
}
else if (TREE_CODE (impent->imp_context) == CATEGORY_IMPLEMENTATION_TYPE)
{
const char *const class_name =
IDENTIFIER_POINTER (CLASS_NAME (impent->imp_context));
const char *const class_super_name =
IDENTIFIER_POINTER (CLASS_SUPER_NAME (impent->imp_context));
string = (char *) alloca (strlen (class_name)
+ strlen (class_super_name) + 30);
sprintf (string, "*%sobjc_category_name_%s_%s",
(flag_next_runtime ? "." : "__"), class_name, class_super_name);
}
else
return;
#ifdef ASM_DECLARE_CLASS_REFERENCE
if (flag_next_runtime)
{
ASM_DECLARE_CLASS_REFERENCE (asm_out_file, string);
return;
}
else
#endif
{
tree decl, init;
init = build_int_2 (0, 0);
TREE_TYPE (init) = c_common_type_for_size (BITS_PER_WORD, 1);
decl = build_decl (VAR_DECL, get_identifier (string), TREE_TYPE (init));
TREE_PUBLIC (decl) = 1;
TREE_READONLY (decl) = 1;
TREE_USED (decl) = 1;
TREE_CONSTANT (decl) = 1;
DECL_CONTEXT (decl) = 0;
DECL_ARTIFICIAL (decl) = 1;
DECL_INITIAL (decl) = init;
assemble_variable (decl, 1, 0, 0);
}
}
static void
generate_objc_image_info ()
{
tree sc_spec, decl, initlist;
flag_suppress_builtin_indexing = 1;
sc_spec = build_tree_list (NULL_TREE, ridpointers[(int) RID_STATIC]);
decl
= start_decl (get_identifier ("_OBJC_IMAGE_INFO"),
tree_cons (NULL_TREE,
build_array_type
(integer_type_node,
build_index_type (build_int_2 (1, 0))),
sc_spec),
1,
NULL_TREE);
initlist = build_tree_list (NULL_TREE, build_int_2 (0, 0));
initlist = tree_cons (NULL_TREE, build_int_2 (1, 0), initlist);
initlist = build_constructor (TREE_TYPE (decl), nreverse (initlist));
TREE_USED (decl) = DECL_IGNORED_P (decl) = DECL_ARTIFICIAL (decl) = 1;
finish_decl (decl, initlist, NULL_TREE);
flag_suppress_builtin_indexing = 0;
}
tree
lookup_objc_ivar (id)
tree id;
{
tree decl;
if (objc_method_context && !strcmp (IDENTIFIER_POINTER (id), "super"))
return get_super_receiver ();
else if (objc_method_context && (decl = is_ivar (objc_ivar_chain, id)))
{
if (is_private (decl))
return error_mark_node;
else
return build_ivar_reference (id);
}
else
return 0;
}
#include "gt-objc-objc-act.h"
#include "gt-objc-objc-act-h.h"
#ifndef OBJCPLUS
tree objc_dummy = 0;
#include "gtype-objc.h"
#endif