/* Separate lexical analyzer for GNU C++.
- Copyright (C) 1987, 89, 92, 93, 94, 1995 Free Software Foundation, Inc.
+ Copyright (C) 1987, 89, 92, 93, 94, 95, 1996 Free Software Foundation, Inc.
Hacked by Michael Tiemann (tiemann@cygnus.com)
This file is part of GNU CC.
#ifndef errno
extern int errno; /* needed for VAX. */
#endif
-extern jmp_buf toplevel;
#define obstack_chunk_alloc xmalloc
#define obstack_chunk_free free
-extern struct obstack *expression_obstack, permanent_obstack;
+extern struct obstack permanent_obstack;
extern struct obstack *current_obstack, *saveable_obstack;
extern double atof ();
extern char *index ();
extern char *rindex ();
-
-void extract_interface_info ();
void yyerror ();
/* This obstack is needed to hold text. It is not safe to use
TOKEN_BUFFER because `check_newline' calls `yylex'. */
struct obstack inline_text_obstack;
-static char *inline_text_firstobj;
-
-/* This obstack is used to hold information about methods to be
- synthesized. It should go away when synthesized methods are handled
- properly (i.e. only when needed). */
-struct obstack synth_obstack;
-static char *synth_firstobj;
int end_of_file;
static tree filename_times;
static tree this_filename_time;
-/* For implementing #pragma unit. */
-tree current_unit_name;
-tree current_unit_language;
-
/* Array for holding counts of the numbers of tokens seen. */
extern int *token_count;
-
-/* Textual definition used for default functions. */
-static void default_copy_constructor_body ();
-static void default_assign_ref_body ();
\f
/* Return something to represent absolute declarators containing a *.
TARGET is the absolute declarator that the * contains.
/* With luck, we discover the real source file's name from that
and put it in input_filename. */
put_back (check_newline ());
-
- if (flag_cadillac)
- cadillac_start ();
if (flag_gnu_xref) GNU_xref_begin (input_filename);
init_repo (input_filename);
}
reinit_search_statistics ();
}
+int *init_parse ();
+
void
init_lex ()
{
init_method ();
init_error ();
gcc_obstack_init (&inline_text_obstack);
- inline_text_firstobj = (char *) obstack_alloc (&inline_text_obstack, 0);
- gcc_obstack_init (&synth_obstack);
- synth_firstobj = (char *) obstack_alloc (&synth_obstack, 0);
/* Start it at 0, because check_newline is called at the very beginning
and will increment it to 1. */
}
#endif
- if (! (flag_gc || flag_rtti) || flag_no_gnu_keywords)
+ if (!flag_rtti || flag_no_gnu_keywords)
{
UNSET_RESERVED_WORD ("classof");
UNSET_RESERVED_WORD ("headof");
case SCSPEC:
case PRE_PARSED_CLASS_DECL:
t = yylval.ttype;
+ if (TREE_CODE (t) == TYPE_DECL)
+ {
+ fprintf (file, " `%s'", DECL_NAME (t));
+ break;
+ }
my_friendly_assert (TREE_CODE (t) == IDENTIFIER_NODE, 224);
if (IDENTIFIER_POINTER (t))
fprintf (file, " `%s'", IDENTIFIER_POINTER (t));
}
}
+#if defined(GATHER_STATISTICS) && defined(REDUCE_LENGTH)
static int *reduce_count;
+#endif
+
int *token_count;
#if 0
fileinfo = get_time_identifier (input_filename);
fileinfo = IDENTIFIER_CLASS_VALUE (fileinfo);
interface_only = TREE_INT_CST_LOW (fileinfo);
- if (!processing_template_defn || flag_external_templates)
- interface_unknown = TREE_INT_CST_HIGH (fileinfo);
+ interface_unknown = TREE_INT_CST_HIGH (fileinfo);
}
/* Return nonzero if S is not considered part of an
= interface_strcmp (FILE_NAME_NONDIRECTORY (DECL_SOURCE_FILE (vars)));
}
-void
+int
set_vardecl_interface_info (prev, vars)
tree prev, vars;
{
CLASSTYPE_VTABLE_NEEDS_WRITING (type) = 1;
DECL_EXTERNAL (vars) = CLASSTYPE_INTERFACE_ONLY (type);
TREE_PUBLIC (vars) = 1;
+ return 1;
}
+ return 0;
}
\f
/* Called from the top level: if there are any pending inlines to
do_pending_inlines ()
{
struct pending_inline *t;
+ tree context;
/* Oops, we're still dealing with the last batch. */
if (yychar == PRE_PARSED_FUNCTION_DECL)
/* Reverse the pending inline functions, since
they were cons'd instead of appended. */
{
- struct pending_inline *prev = 0, *tail, *bottom = 0;
+ struct pending_inline *prev = 0, *tail;
t = pending_inlines;
pending_inlines = 0;
t->deja_vu = 1;
prev = t;
}
-
- /* This kludge should go away when synthesized methods are handled
- properly, i.e. only when needed. */
- for (t = prev; t; t = t->next)
- {
- if (t->lineno <= 0)
- {
- tree f = t->fndecl;
- DECL_PENDING_INLINE_INFO (f) = 0;
- interface_unknown = t->interface == 1;
- interface_only = t->interface == 0;
- synthesize_method (f);
- if (tail)
- tail->next = t->next;
- else
- prev = t->next;
- if (! bottom)
- bottom = t;
- }
- else
- tail = t;
- }
- if (bottom)
- {
- obstack_free (&synth_obstack, bottom);
- extract_interface_info ();
- }
t = prev;
}
return;
/* Now start processing the first inline function. */
- my_friendly_assert ((t->parm_vec == NULL_TREE) == (t->bindings == NULL_TREE),
- 226);
- if (t->parm_vec)
- push_template_decls (t->parm_vec, t->bindings, 0);
+ context = hack_decl_function_context (t->fndecl);
+ if (context)
+ push_cp_function_context (context);
if (t->len > 0)
{
feed_input (t->buf, t->len, t->can_free ? &inline_text_obstack : 0);
/* Pass back a handle on the rest of the inline functions, so that they
can be processed later. */
yylval.ttype = build_tree_list ((tree) t, t->fndecl);
-#if 0
- if (flag_default_inline && t->fndecl
- /* If we're working from a template, don't change
- the `inline' state. */
- && t->parm_vec == NULL_TREE)
- DECL_INLINE (t->fndecl) = 1;
-#endif
DECL_PENDING_INLINE_INFO (t->fndecl) = 0;
}
process_next_inline (t)
tree t;
{
+ tree context;
struct pending_inline *i = (struct pending_inline *) TREE_PURPOSE (t);
- my_friendly_assert ((i->parm_vec == NULL_TREE) == (i->bindings == NULL_TREE),
- 227);
- if (i->parm_vec)
- pop_template_decls (i->parm_vec, i->bindings, 0);
+ context = hack_decl_function_context (i->fndecl);
+ if (context)
+ pop_cp_function_context (context);
i = i->next;
if (yychar == YYEMPTY)
yychar = yylex ();
to_be_restored = 0;
if (i && i->fndecl != NULL_TREE)
{
- my_friendly_assert ((i->parm_vec == NULL_TREE) == (i->bindings == NULL_TREE),
- 228);
- if (i->parm_vec)
- push_template_decls (i->parm_vec, i->bindings, 0);
+ context = hack_decl_function_context (i->fndecl);
+ if (context)
+ push_cp_function_context (context);
feed_input (i->buf, i->len, i->can_free ? &inline_text_obstack : 0);
lineno = i->lineno;
input_filename = i->filename;
yychar = PRE_PARSED_FUNCTION_DECL;
yylval.ttype = build_tree_list ((tree) i, i->fndecl);
-#if 0
- if (flag_default_inline
- /* If we're working from a template, don't change
- the `inline' state. */
- && i->parm_vec == NULL_TREE)
- DECL_INLINE (i->fndecl) = 1;
-#endif
DECL_PENDING_INLINE_INFO (i->fndecl) = 0;
}
if (i)
/* This function stores away the text for an inline function that should
be processed later. It decides how much later, and may need to move
the info between obstacks; therefore, the caller should not refer to
- the T parameter after calling this function.
-
- This function also stores the list of template-parameter bindings that
- will be needed for expanding the template, if any. */
+ the T parameter after calling this function. */
static void
store_pending_inline (decl, t)
tree decl;
struct pending_inline *t;
{
- extern int processing_template_defn;
- int delay_to_eof = 0;
- struct pending_inline **inlines;
-
t->fndecl = decl;
- /* Default: compile right away, and no extra bindings are needed. */
- t->parm_vec = t->bindings = 0;
- if (processing_template_defn)
- {
- tree type = current_class_type;
- /* Assumption: In this (possibly) nested class sequence, only
- one name will have template parms. */
- while (type && TREE_CODE_CLASS (TREE_CODE (type)) == 't')
- {
- tree decl = TYPE_NAME (type);
- tree tmpl = IDENTIFIER_TEMPLATE (DECL_NAME (decl));
- if (tmpl)
- {
- t->parm_vec = DECL_TEMPLATE_INFO (TREE_PURPOSE (tmpl))->parm_vec;
- t->bindings = TREE_VALUE (tmpl);
- }
- type = DECL_CONTEXT (decl);
- }
- if (TREE_CODE (TREE_TYPE (decl)) == METHOD_TYPE
- || TREE_CODE (TREE_TYPE (decl)) == FUNCTION_TYPE)
- {
- if (TREE_CODE (TREE_TYPE (decl)) == METHOD_TYPE)
- my_friendly_assert (TYPE_MAX_VALUE (TREE_TYPE (decl)) == current_class_type,
- 233);
-
- /* Inline functions can be compiled immediately. Other functions
- will be output separately, so if we're in interface-only mode,
- punt them now, or output them now if we're doing implementations
- and we know no overrides will exist. Otherwise, we delay until
- end-of-file, to see if the definition is really required. */
- if (DECL_THIS_INLINE (decl))
- /* delay_to_eof == 0 */;
- else if (current_class_type && !interface_unknown)
- {
- if (interface_only)
- {
-#if 0
- print_node_brief (stderr, "\ndiscarding text for ", decl, 0);
-#endif
- if (t->can_free)
- obstack_free (&inline_text_obstack, t->buf);
- DECL_PENDING_INLINE_INFO (decl) = 0;
- return;
- }
- }
- /* Don't delay the processing of virtual functions. */
- else if (DECL_VINDEX (decl) == NULL_TREE)
- delay_to_eof = 1;
- }
- else
- my_friendly_abort (58);
- }
-
- if (delay_to_eof)
- {
- extern struct pending_inline *pending_template_expansions;
-
- if (t->can_free)
- {
- char *free_to = t->buf;
- t->buf = (char *) obstack_copy (&permanent_obstack, t->buf,
- t->len + 1);
- t = (struct pending_inline *) obstack_copy (&permanent_obstack,
- (char *)t, sizeof (*t));
- obstack_free (&inline_text_obstack, free_to);
- }
- inlines = &pending_template_expansions;
- t->can_free = 0;
- }
- else
- {
- inlines = &pending_inlines;
- DECL_PENDING_INLINE_INFO (decl) = t;
- }
+ DECL_PENDING_INLINE_INFO (decl) = t;
/* Because we use obstacks, we must process these in precise order. */
- t->next = *inlines;
- *inlines = t;
+ t->next = pending_inlines;
+ pending_inlines = t;
}
void reinit_parse_for_block ();
int starting_lineno = lineno;
char *starting_filename = input_filename;
- reinit_parse_for_block (yychar, &inline_text_obstack, 0);
+ reinit_parse_for_block (yychar, &inline_text_obstack);
len = obstack_object_size (&inline_text_obstack);
current_base_init_list = NULL_TREE;
t->len = len;
t->can_free = 1;
t->deja_vu = 0;
+#if 0
if (interface_unknown && processing_template_defn && flag_external_templates && ! DECL_IN_SYSTEM_HEADER (decl))
warn_if_unknown_interface (decl);
+#endif
t->interface = (interface_unknown ? 1 : (interface_only ? 0 : 2));
store_pending_inline (decl, t);
}
}
-/* Consume a block -- actually, a method or template definition beginning
- with `:' or `{' -- and save it away on the specified obstack.
+/* Consume a block -- actually, a method beginning
+ with `:' or `{' -- and save it away on the specified obstack. */
- Argument IS_TEMPLATE indicates which set of error messages should be
- output if something goes wrong. This should really be cleaned up somehow,
- without loss of clarity. */
void
-reinit_parse_for_block (pyychar, obstackp, is_template)
+reinit_parse_for_block (pyychar, obstackp)
int pyychar;
struct obstack *obstackp;
- int is_template;
{
register int c = 0;
int blev = 1;
look_for_lbrac = 1;
blev = 0;
}
- else if (pyychar == RETURN && !is_template)
+ else if (pyychar == RETURN)
{
obstack_grow (obstackp, "return", 6);
look_for_lbrac = 1;
blev = 0;
}
- else if (pyychar == TRY && !is_template)
+ else if (pyychar == TRY)
{
obstack_grow (obstackp, "try", 3);
look_for_lbrac = 1;
}
else
{
- yyerror (is_template
- ? "parse error in template specification"
- : "parse error in method specification");
+ yyerror ("parse error in method specification");
obstack_1grow (obstackp, '{');
}
{
if (look_for_lbrac)
{
- error (is_template
- ? "template body missing"
- : "function body for constructor missing");
+ error ("function body for constructor missing");
obstack_1grow (obstackp, '{');
obstack_1grow (obstackp, '}');
len += 2;
int kind;
{
extern tree void_list_node;
- char *func_buf = NULL;
- int func_len = 0;
tree declspecs = NULL_TREE;
tree fn, args;
tree argtype;
int retref = 0;
- int complex = 0;
tree name = constructor_name (full_name);
switch (kind)
case 2:
/* Default constructor. */
args = void_list_node;
- complex = TYPE_NEEDS_CONSTRUCTING (type);
break;
case 3:
build_tree_list (hash_tree_chain (argtype, NULL_TREE),
get_identifier ("_ctor_arg")),
void_list_node);
- complex = TYPE_HAS_COMPLEX_INIT_REF (type);
break;
case 5:
/* Fall through... */
case 6:
retref = 1;
- declspecs = build_decl_list (NULL_TREE, full_name);
+ declspecs = build_decl_list (NULL_TREE, type);
name = ansi_opname [(int) MODIFY_EXPR];
build_tree_list (hash_tree_chain (argtype, NULL_TREE),
get_identifier ("_ctor_arg")),
void_list_node);
- complex = TYPE_HAS_COMPLEX_ASSIGN_REF (type);
break;
default:
if (fn == void_type_node)
return fn;
+#if 0
if (processing_template_defn)
{
SET_DECL_IMPLICIT_INSTANTIATION (fn);
repo_template_used (fn);
}
+#endif
+#if 0
if (CLASSTYPE_INTERFACE_KNOWN (type))
{
DECL_INTERFACE_KNOWN (fn) = 1;
&& flag_implement_inlines);
}
else
+#endif
DECL_NOT_REALLY_EXTERN (fn) = 1;
-#if 0
- /* When on-the-fly synthesis works properly, remove the second and third
- conditions here. */
- if (flag_keep_inline_functions
-#if 0
- || ! flag_no_inline
- || complex
-#endif
- || ! DECL_EXTERNAL (fn))
- {
- struct pending_inline *t;
- t = (struct pending_inline *)
- obstack_alloc (&synth_obstack, sizeof (struct pending_inline));
- t->lineno = -kind;
- t->can_free = 0;
- t->interface = (interface_unknown ? 1 : (interface_only ? 0 : 2));
- store_pending_inline (fn, t);
- }
- else
-#endif
- mark_inline_for_output (fn);
+ mark_inline_for_output (fn);
#ifdef DEBUG_DEFAULT_FUNCTIONS
{ char *fn_type = NULL;
if ((yychar > 255
&& yychar != SCSPEC
&& yychar != IDENTIFIER
- && yychar != TYPENAME)
+ && yychar != TYPENAME
+ && yychar != SELFNAME)
|| end_of_file)
{
if (ANON_AGGRNAME_P (TYPE_IDENTIFIER (type)))
int linemode;
+int handle_cp_pragma ();
+
int
check_newline ()
{
&& getch () == 'm'
&& getch () == 'a')
{
- /* Read first nonwhite char after the `#pragma'. */
-
- do
- c = getch ();
- while (c == ' ' || c == '\t');
-
- if (c == 'v'
- && getch () == 't'
- && getch () == 'a'
- && getch () == 'b'
- && getch () == 'l'
- && getch () == 'e'
- && ((c = getch ()) == ' ' || c == '\t'))
- {
- extern tree pending_vtables;
-
- /* More follows: it must be a string constant (class name). */
- token = real_yylex ();
- if (token != STRING || TREE_CODE (yylval.ttype) != STRING_CST)
- {
- error ("invalid #pragma vtable");
- goto skipline;
- }
- if (write_virtuals != 2)
- {
- warning ("use `+e2' option to enable #pragma vtable");
- goto skipline;
- }
- pending_vtables = perm_tree_cons (NULL_TREE, get_identifier (TREE_STRING_POINTER (yylval.ttype)), pending_vtables);
- if (nextchar < 0)
- nextchar = getch ();
- c = nextchar;
- if (c != EOF)
- warning ("trailing characters ignored");
- }
- else if (c == 'u'
- && getch () == 'n'
- && getch () == 'i'
- && getch () == 't'
- && ((c = getch ()) == ' ' || c == '\t'))
+ token = real_yylex ();
+ if (token == IDENTIFIER
+ && TREE_CODE (yylval.ttype) == IDENTIFIER_NODE)
{
- /* More follows: it must be a string constant (unit name). */
- token = real_yylex ();
- if (token != STRING || TREE_CODE (yylval.ttype) != STRING_CST)
- {
- error ("invalid #pragma unit");
- goto skipline;
- }
- current_unit_name = get_identifier (TREE_STRING_POINTER (yylval.ttype));
- current_unit_language = current_lang_name;
- if (nextchar < 0)
- nextchar = getch ();
- c = nextchar;
- if (c != EOF)
- warning ("trailing characters ignored");
+ /* If this is 1, we handled it; if it's -1, it was one we
+ wanted but had something wrong with it. Only if it's
+ 0 was it not handled. */
+ if (handle_cp_pragma (IDENTIFIER_POINTER (yylval.ttype)))
+ goto skipline;
}
- else if (c == 'i')
- {
- tree fileinfo = IDENTIFIER_CLASS_VALUE (get_time_identifier (input_filename));
- c = getch ();
-
- if (c == 'n'
- && getch () == 't'
- && getch () == 'e'
- && getch () == 'r'
- && getch () == 'f'
- && getch () == 'a'
- && getch () == 'c'
- && getch () == 'e'
- && ((c = getch ()) == ' ' || c == '\t' || c == EOF))
- {
- int warned_already = 0;
- char *main_filename = input_filename;
-
- main_filename = FILE_NAME_NONDIRECTORY (main_filename);
- while (c == ' ' || c == '\t')
- c = getch ();
- if (c != EOF)
- {
- put_back (c);
- token = real_yylex ();
- if (token != STRING
- || TREE_CODE (yylval.ttype) != STRING_CST)
- {
- error ("invalid `#pragma interface'");
- goto skipline;
- }
- main_filename = TREE_STRING_POINTER (yylval.ttype);
- c = getch();
- put_back (c);
- }
-
- while (c == ' ' || c == '\t')
- c = getch ();
-
- while (c != EOF)
- {
- if (!warned_already && extra_warnings
- && c != ' ' && c != '\t')
- {
- warning ("garbage after `#pragma interface' ignored");
- warned_already = 1;
- }
- c = getch ();
- }
-
- write_virtuals = 3;
-
- if (impl_file_chain == 0)
- {
- /* If this is zero at this point, then we are
- auto-implementing. */
- if (main_input_filename == 0)
- main_input_filename = input_filename;
-
-#ifdef AUTO_IMPLEMENT
- filename = FILE_NAME_NONDIRECTORY (main_input_filename);
- fi = get_time_identifier (filename);
- fi = IDENTIFIER_CLASS_VALUE (fi);
- TREE_INT_CST_LOW (fi) = 0;
- TREE_INT_CST_HIGH (fi) = 1;
- /* Get default. */
- impl_file_chain = (struct impl_files *)permalloc (sizeof (struct impl_files));
- impl_file_chain->filename = filename;
- impl_file_chain->next = 0;
-#endif
- }
-
- interface_only = interface_strcmp (main_filename);
- interface_unknown = 0;
- TREE_INT_CST_LOW (fileinfo) = interface_only;
- TREE_INT_CST_HIGH (fileinfo) = interface_unknown;
- }
- else if (c == 'm'
- && getch () == 'p'
- && getch () == 'l'
- && getch () == 'e'
- && getch () == 'm'
- && getch () == 'e'
- && getch () == 'n'
- && getch () == 't'
- && getch () == 'a'
- && getch () == 't'
- && getch () == 'i'
- && getch () == 'o'
- && getch () == 'n'
- && ((c = getch ()) == ' ' || c == '\t' || c == EOF))
- {
- int warned_already = 0;
- char *main_filename = main_input_filename ? main_input_filename : input_filename;
-
- main_filename = FILE_NAME_NONDIRECTORY (main_filename);
- while (c == ' ' || c == '\t')
- c = getch ();
- if (c != EOF)
- {
- put_back (c);
- token = real_yylex ();
- if (token != STRING
- || TREE_CODE (yylval.ttype) != STRING_CST)
- {
- error ("invalid `#pragma implementation'");
- goto skipline;
- }
- main_filename = TREE_STRING_POINTER (yylval.ttype);
- c = getch();
- put_back (c);
- }
-
- while (c == ' ' || c == '\t')
- c = getch ();
-
- while (c != EOF)
- {
- if (!warned_already && extra_warnings
- && c != ' ' && c != '\t')
- {
- warning ("garbage after `#pragma implementation' ignored");
- warned_already = 1;
- }
- c = getch ();
- }
+ else if (token == END_OF_LINE)
+ goto skipline;
- if (write_virtuals == 3)
- {
- struct impl_files *ifiles = impl_file_chain;
- while (ifiles)
- {
- if (! strcmp (ifiles->filename, main_filename))
- break;
- ifiles = ifiles->next;
- }
- if (ifiles == 0)
- {
- ifiles = (struct impl_files*) permalloc (sizeof (struct impl_files));
- ifiles->filename = main_filename;
- ifiles->next = impl_file_chain;
- impl_file_chain = ifiles;
- }
- }
- else if ((main_input_filename != 0
- && ! strcmp (main_input_filename, input_filename))
- || ! strcmp (input_filename, main_filename))
- {
- write_virtuals = 3;
- if (impl_file_chain == 0)
- {
- impl_file_chain = (struct impl_files*) permalloc (sizeof (struct impl_files));
- impl_file_chain->filename = main_filename;
- impl_file_chain->next = 0;
- }
- }
- else
- error ("`#pragma implementation' can only appear at top-level");
- interface_only = 0;
-#if 1
- /* We make this non-zero so that we infer decl linkage
- in the impl file only for variables first declared
- in the interface file. */
- interface_unknown = 1;
-#else
- /* We make this zero so that templates in the impl
- file will be emitted properly. */
- interface_unknown = 0;
-#endif
- TREE_INT_CST_LOW (fileinfo) = interface_only;
- TREE_INT_CST_HIGH (fileinfo) = interface_unknown;
- }
- }
#ifdef HANDLE_SYSV_PRAGMA
- else
- {
- put_back (c);
- handle_sysv_pragma ();
- }
+ if (handle_sysv_pragma (finput, token))
+ goto skipline;
#else
#ifdef HANDLE_PRAGMA
- /* FIXME: This will break if we're doing any of the C++ input
- tricks. */
- else
- {
- ungetc (c, finput);
- HANDLE_PRAGMA (finput);
- }
+ if (HANDLE_PRAGMA (finput, yylval.ttype))
+ goto skipline;
#endif
#endif
- goto skipline;
}
+ goto skipline;
}
else if (c == 'd')
{
/* Here we have just seen `#ident '.
A string constant should follow. */
- while (c == ' ' || c == '\t')
- c = getch ();
-
- /* If no argument, ignore the line. */
- if (c == EOF)
- goto skipline;
-
- put_back (c);
token = real_yylex ();
+ if (token == END_OF_LINE)
+ goto skipline;
if (token != STRING
|| TREE_CODE (yylval.ttype) != STRING_CST)
{
body_time = this_time;
}
- if (flag_cadillac)
- cadillac_note_source ();
-
input_filename
= (char *) permalloc (TREE_STRING_LENGTH (yylval.ttype) + 1);
strcpy (input_filename, TREE_STRING_POINTER (yylval.ttype));
&& write_symbols == DWARF_DEBUG)
dwarfout_start_new_source_file (input_filename);
#endif /* DWARF_DEBUGGING_INFO */
- if (flag_cadillac)
- cadillac_push_source ();
in_system_header = entering_system_header;
if (c_header_level)
++c_header_level;
warning ("badly nested C headers from preprocessor");
--pending_lang_change;
}
- if (flag_cadillac)
- cadillac_pop_source ();
in_system_header = entering_system_header;
p = input_file_stack;
error ("#-lines for entering and leaving files don't match");
}
else
- {
- in_system_header = entering_system_header;
- if (flag_cadillac)
- cadillac_switch_source (-1);
- }
+ in_system_header = entering_system_header;
}
/* If NEXTCHAR is not end of line, we don't care what it is. */
skipline:
linemode = 0;
end_of_file = 0;
+ nextchar = -1;
while ((c = getch ()) != EOF && c != '\n');
return c;
}
identifier_type (decl)
tree decl;
{
- if (TREE_CODE (decl) == TEMPLATE_DECL
- && DECL_TEMPLATE_IS_CLASS (decl))
- return PTYPENAME;
+ if (TREE_CODE (decl) == TEMPLATE_DECL)
+ {
+ if (TREE_CODE (DECL_RESULT (decl)) == TYPE_DECL)
+ return PTYPENAME;
+ }
if (TREE_CODE (decl) == NAMESPACE_DECL)
return NSNAME;
if (TREE_CODE (decl) != TYPE_DECL)
return IDENTIFIER;
+ if (((got_scope && TREE_TYPE (decl) == got_scope)
+ || TREE_TYPE (decl) == current_class_type)
+ && DECL_ARTIFICIAL (decl))
+ return SELFNAME;
return TYPENAME;
}
{
looking_for_typename = 1;
if (yychar < 0)
- if ((yychar = yylex()) < 0) yychar = 0;
+ if ((yychar = yylex ()) < 0) yychar = 0;
looking_for_typename = 0;
if (yychar == IDENTIFIER)
{
}
tree
-do_identifier (token)
+do_identifier (token, parsing)
register tree token;
+ int parsing;
{
- register tree id = lastiddecl;
+ register tree id;
- if (IDENTIFIER_OPNAME_P (token))
+ if (! parsing || IDENTIFIER_OPNAME_P (token))
id = lookup_name (token, 0);
+ else
+ id = lastiddecl;
- if (yychar == YYEMPTY)
+ if (parsing && yychar == YYEMPTY)
yychar = yylex ();
/* Scope class declarations before global
declarations. */
if (id == IDENTIFIER_GLOBAL_VALUE (token)
&& current_class_type != 0
- && TYPE_SIZE (current_class_type) == 0
- && TREE_CODE (current_class_type) != UNINSTANTIATED_P_TYPE)
+ && TYPE_SIZE (current_class_type) == 0)
{
/* Could be from one of the base classes. */
tree field = lookup_field (current_class_type, token, 1, 0);
/* Remember that this name has been used in the class definition, as per
[class.scope0] */
- if (id && current_class_type
+ if (id && current_class_type && parsing
&& TYPE_BEING_DEFINED (current_class_type)
&& ! IDENTIFIER_CLASS_VALUE (token))
pushdecl_class_level (id);
return id;
}
- if (IDENTIFIER_OPNAME_P (token))
+ if (current_template_parms)
+ return build_min_nt (LOOKUP_EXPR, token, NULL_TREE);
+ else if (IDENTIFIER_OPNAME_P (token))
{
if (token != ansi_opname[ERROR_MARK])
cp_error ("operator %O not defined", token);
id = error_mark_node;
}
- else if (yychar == '(' || yychar == LEFT_RIGHT)
+ else if (parsing && (yychar == '(' || yychar == LEFT_RIGHT))
{
id = implicitly_declare (token);
}
if (TREE_CODE (id) == VAR_DECL && DECL_DEAD_FOR_LOCAL (id))
{
tree shadowed = DECL_SHADOWED_FOR_VAR (id);
+ while (shadowed != NULL_TREE && TREE_CODE (shadowed) == VAR_DECL
+ && DECL_DEAD_FOR_LOCAL (shadowed))
+ shadowed = DECL_SHADOWED_FOR_VAR (shadowed);
+ if (!shadowed)
+ shadowed = IDENTIFIER_GLOBAL_VALUE (DECL_NAME (id));
if (shadowed)
{
if (!DECL_ERROR_REPORTED (id))
cp_error ("enum `%D' is private", id);
/* protected is OK, since it's an enum of `this'. */
}
- id = DECL_INITIAL (id);
+ if (! current_template_parms
+ || (DECL_INITIAL (id)
+ && TREE_CODE (DECL_INITIAL (id)) == TEMPLATE_CONST_PARM))
+ id = DECL_INITIAL (id);
}
else
- id = hack_identifier (id, token, yychar);
+ id = hack_identifier (id, token);
+
+ if (current_template_parms)
+ {
+ if (is_overloaded_fn (id))
+ {
+ tree t = build_min (LOOKUP_EXPR, unknown_type_node,
+ token, get_first_fn (id));
+ if (id != IDENTIFIER_GLOBAL_VALUE (token))
+ TREE_OPERAND (t, 1) = error_mark_node;
+ id = t;
+ }
+ else if (! TREE_PERMANENT (id) || TREE_CODE (id) == PARM_DECL
+ || TREE_CODE (id) == USING_DECL)
+ id = build_min (LOOKUP_EXPR, TREE_TYPE (id), token, error_mark_node);
+ /* else just use the decl */
+ }
+
+ return id;
+}
+
+tree
+do_scoped_id (token, parsing)
+ tree token;
+ int parsing;
+{
+ tree id = IDENTIFIER_GLOBAL_VALUE (token);
+ if (parsing && yychar == YYEMPTY)
+ yychar = yylex ();
+ if (! id)
+ {
+ if (current_template_parms)
+ {
+ id = build_min_nt (LOOKUP_EXPR, token, NULL_TREE);
+ LOOKUP_EXPR_GLOBAL (id) = 1;
+ return id;
+ }
+ if (parsing && yychar == '(' || yychar == LEFT_RIGHT)
+ id = implicitly_declare (token);
+ else
+ {
+ if (IDENTIFIER_GLOBAL_VALUE (token) != error_mark_node)
+ error ("undeclared variable `%s' (first use here)",
+ IDENTIFIER_POINTER (token));
+ id = error_mark_node;
+ /* Prevent repeated error messages. */
+ IDENTIFIER_GLOBAL_VALUE (token) = error_mark_node;
+ }
+ }
+ else
+ {
+ if (TREE_CODE (id) == ADDR_EXPR)
+ mark_used (TREE_OPERAND (id, 0));
+ else if (TREE_CODE (id) != TREE_LIST)
+ mark_used (id);
+ }
+ if (TREE_CODE (id) == CONST_DECL && ! current_template_parms)
+ {
+ /* XXX CHS - should we set TREE_USED of the constant? */
+ id = DECL_INITIAL (id);
+ /* This is to prevent an enum whose value is 0
+ from being considered a null pointer constant. */
+ id = build1 (NOP_EXPR, TREE_TYPE (id), id);
+ TREE_CONSTANT (id) = 1;
+ }
+
+ if (current_template_parms)
+ {
+ if (is_overloaded_fn (id))
+ {
+ id = build_min (LOOKUP_EXPR, unknown_type_node,
+ token, get_first_fn (id));
+ LOOKUP_EXPR_GLOBAL (id) = 1;
+ }
+ /* else just use the decl */
+ }
return id;
}
value = END_OF_SAVED_INPUT;
else if (linemode)
value = END_OF_LINE;
- else if (do_pending_expansions ())
- /* this will set yychar for us */
- return yychar;
else
value = ENDFILE;
break;
token_buffer[0] = '^';
token_buffer[1] = 0;
}
+ else if (ptr->token == NAMESPACE)
+ {
+ static int warned;
+ if (! warned)
+ warning ("namespaces are mostly broken in this version of g++");
+
+ warned = 1;
+ }
value = (int) ptr->token;
}
skipnewline:
c = getch ();
if (c == EOF) {
- error("Unterminated string");
+ error ("Unterminated string");
break;
}
}
len = p - token_buffer - 1;
}
#endif
+ if (current_template_parms)
+ push_obstacks (&permanent_obstack, &permanent_obstack);
yylval.ttype = build_string ((len + 1) * WCHAR_BYTES, widep);
+ if (current_template_parms)
+ pop_obstacks ();
TREE_TYPE (yylval.ttype) = wchar_array_type_node;
}
else
{
+ if (current_template_parms)
+ push_obstacks (&permanent_obstack, &permanent_obstack);
yylval.ttype = build_string (p - token_buffer, token_buffer + 1);
+ if (current_template_parms)
+ pop_obstacks ();
TREE_TYPE (yylval.ttype) = char_array_type_node;
}
return !!is_reserved_word (IDENTIFIER_POINTER (t), IDENTIFIER_LENGTH (t));
}
-typedef enum
-{
- d_kind, t_kind, s_kind, r_kind, e_kind, c_kind,
- id_kind, op_id_kind, perm_list_kind, temp_list_kind,
- vec_kind, x_kind, lang_decl, lang_type, all_kinds
-} tree_node_kind;
+#ifdef GATHER_STATISTICS
extern int tree_node_counts[];
extern int tree_node_sizes[];
-extern char *tree_node_kind_names[];
+#endif
/* Place to save freed lang_decls which were allocated on the
permanent_obstack. @@ Not currently used. */
#endif
#ifdef GATHER_STATISTICS
tree_node_counts[(int)lang_decl] += 1;
- tree_node_sizes[(int)lang_decl] += sizeof(struct lang_decl);
+ tree_node_sizes[(int)lang_decl] += sizeof (struct lang_decl);
#endif
return t;
int size;
int *pi;
+ if (! DECL_LANG_SPECIFIC (node))
+ return;
+
if (TREE_CODE (node) == FIELD_DECL)
size = sizeof (struct lang_decl_flags);
else
#ifdef GATHER_STATISTICS
tree_node_counts[(int)lang_type] += 1;
- tree_node_sizes[(int)lang_type] += sizeof(struct lang_type);
+ tree_node_sizes[(int)lang_type] += sizeof (struct lang_type);
#endif
return t;
#ifdef GATHER_STATISTICS
tree_node_counts[(int)lang_decl] += 1;
- tree_node_sizes[(int)lang_decl] += sizeof(struct lang_decl);
+ tree_node_sizes[(int)lang_decl] += sizeof (struct lang_decl);
#endif
}
sprintf (buf, s, v, v2);
error_with_file_and_line (input_filename, lineno, "%s (compiler error)", buf);
}
-
-void
-compiler_error_with_decl (decl, s)
- tree decl;
- char *s;
-{
- char *name;
- count_error (0);
-
- report_error_function (0);
-
- if (TREE_CODE (decl) == PARM_DECL)
- fprintf (stderr, "%s:%d: ",
- DECL_SOURCE_FILE (DECL_CONTEXT (decl)),
- DECL_SOURCE_LINE (DECL_CONTEXT (decl)));
- else
- fprintf (stderr, "%s:%d: ",
- DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl));
-
- name = lang_printable_name (decl);
- if (name)
- fprintf (stderr, s, name);
- else
- fprintf (stderr, s, "((anonymous))");
- fprintf (stderr, " (compiler error)\n");
-}
\f
void
yyerror (string)
error (buf, token_buffer);
}
\f
+int
+handle_cp_pragma (pname)
+ char *pname;
+{
+ register int token;
+
+ if (! strcmp (pname, "vtable"))
+ {
+ extern tree pending_vtables;
+
+ /* More follows: it must be a string constant (class name). */
+ token = real_yylex ();
+ if (token != STRING || TREE_CODE (yylval.ttype) != STRING_CST)
+ {
+ error ("invalid #pragma vtable");
+ return -1;
+ }
+
+ if (write_virtuals != 2)
+ {
+ warning ("use `+e2' option to enable #pragma vtable");
+ return -1;
+ }
+ pending_vtables
+ = perm_tree_cons (NULL_TREE,
+ get_identifier (TREE_STRING_POINTER (yylval.ttype)),
+ pending_vtables);
+ token = real_yylex ();
+ if (token != END_OF_LINE)
+ warning ("trailing characters ignored");
+ return 1;
+ }
+ else if (! strcmp (pname, "unit"))
+ {
+ /* More follows: it must be a string constant (unit name). */
+ token = real_yylex ();
+ if (token != STRING || TREE_CODE (yylval.ttype) != STRING_CST)
+ {
+ error ("invalid #pragma unit");
+ return -1;
+ }
+ token = real_yylex ();
+ if (token != END_OF_LINE)
+ warning ("trailing characters ignored");
+ return 1;
+ }
+ else if (! strcmp (pname, "interface"))
+ {
+ tree fileinfo = IDENTIFIER_CLASS_VALUE (get_time_identifier (input_filename));
+ int warned_already = 0;
+ char *main_filename = input_filename;
+
+ main_filename = FILE_NAME_NONDIRECTORY (main_filename);
+
+ token = real_yylex ();
+
+ if (token != END_OF_LINE)
+ {
+ if (token != STRING
+ || TREE_CODE (yylval.ttype) != STRING_CST)
+ {
+ error ("invalid `#pragma interface'");
+ return -1;
+ }
+ main_filename = TREE_STRING_POINTER (yylval.ttype);
+ }
+
+ while (token != END_OF_LINE)
+ {
+ if (!warned_already && extra_warnings)
+ {
+ warning ("garbage after `#pragma interface' ignored");
+ warned_already = 1;
+ }
+ token = real_yylex ();
+ }
+
+ write_virtuals = 3;
+
+ if (impl_file_chain == 0)
+ {
+ /* If this is zero at this point, then we are
+ auto-implementing. */
+ if (main_input_filename == 0)
+ main_input_filename = input_filename;
+
+#ifdef AUTO_IMPLEMENT
+ filename = FILE_NAME_NONDIRECTORY (main_input_filename);
+ fi = get_time_identifier (filename);
+ fi = IDENTIFIER_CLASS_VALUE (fi);
+ TREE_INT_CST_LOW (fi) = 0;
+ TREE_INT_CST_HIGH (fi) = 1;
+ /* Get default. */
+ impl_file_chain = (struct impl_files *)permalloc (sizeof (struct impl_files));
+ impl_file_chain->filename = filename;
+ impl_file_chain->next = 0;
+#endif
+ }
+
+ interface_only = interface_strcmp (main_filename);
+ interface_unknown = 0;
+ TREE_INT_CST_LOW (fileinfo) = interface_only;
+ TREE_INT_CST_HIGH (fileinfo) = interface_unknown;
+
+ return 1;
+ }
+ else if (! strcmp (pname, "implementation"))
+ {
+ tree fileinfo = IDENTIFIER_CLASS_VALUE (get_time_identifier (input_filename));
+ int warned_already = 0;
+ char *main_filename = main_input_filename ? main_input_filename : input_filename;
+
+ main_filename = FILE_NAME_NONDIRECTORY (main_filename);
+ token = real_yylex ();
+ if (token != END_OF_LINE)
+ {
+ if (token != STRING
+ || TREE_CODE (yylval.ttype) != STRING_CST)
+ {
+ error ("invalid `#pragma implementation'");
+ return -1;
+ }
+ main_filename = TREE_STRING_POINTER (yylval.ttype);
+ }
+
+ while (token != END_OF_LINE)
+ {
+ if (!warned_already && extra_warnings)
+ {
+ warning ("garbage after `#pragma implementation' ignored");
+ warned_already = 1;
+ }
+ token = real_yylex ();
+ }
+
+ if (write_virtuals == 3)
+ {
+ struct impl_files *ifiles = impl_file_chain;
+ while (ifiles)
+ {
+ if (! strcmp (ifiles->filename, main_filename))
+ break;
+ ifiles = ifiles->next;
+ }
+ if (ifiles == 0)
+ {
+ ifiles = (struct impl_files*) permalloc (sizeof (struct impl_files));
+ ifiles->filename = main_filename;
+ ifiles->next = impl_file_chain;
+ impl_file_chain = ifiles;
+ }
+ }
+ else if ((main_input_filename != 0
+ && ! strcmp (main_input_filename, input_filename))
+ || ! strcmp (input_filename, main_filename))
+ {
+ write_virtuals = 3;
+ if (impl_file_chain == 0)
+ {
+ impl_file_chain = (struct impl_files*) permalloc (sizeof (struct impl_files));
+ impl_file_chain->filename = main_filename;
+ impl_file_chain->next = 0;
+ }
+ }
+ else
+ error ("`#pragma implementation' can only appear at top-level");
+ interface_only = 0;
+#if 1
+ /* We make this non-zero so that we infer decl linkage
+ in the impl file only for variables first declared
+ in the interface file. */
+ interface_unknown = 1;
+#else
+ /* We make this zero so that templates in the impl
+ file will be emitted properly. */
+ interface_unknown = 0;
+#endif
+ TREE_INT_CST_LOW (fileinfo) = interface_only;
+ TREE_INT_CST_HIGH (fileinfo) = interface_unknown;
+ return 1;
+ }
+
+ return 0;
+}
+\f
#ifdef HANDLE_SYSV_PRAGMA
/* Handle a #pragma directive. INPUT is the current input stream,
/* This function has to be in this file, in order to get at
the token types. */
-
-handle_sysv_pragma ()
+int
+handle_sysv_pragma (finput, token)
+ FILE *finput;
+ register int token;
{
for (;;)
{
- switch (yylex ())
+ switch (token)
{
case IDENTIFIER:
case TYPENAME:
handle_pragma_token (")", NULL_TREE);
break;
case END_OF_LINE:
- handle_pragma_token (NULL_PTR, NULL_TREE);
- return;
default:
handle_pragma_token (NULL_PTR, NULL_TREE);
- while (yylex () != END_OF_LINE)
- /* continue */;
- return;
+ return 1;
}
+ token = real_yylex ();
}
}
#endif /* HANDLE_SYSV_PRAGMA */
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