456 lines
11 KiB
C
456 lines
11 KiB
C
/* Java(TM) language-specific utility routines.
|
|
Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU CC.
|
|
|
|
GNU CC is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU CC is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU CC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA.
|
|
|
|
Java and all Java-based marks are trademarks or registered trademarks
|
|
of Sun Microsystems, Inc. in the United States and other countries.
|
|
The Free Software Foundation is independent of Sun Microsystems, Inc. */
|
|
|
|
/* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
|
|
|
|
#include "config.h"
|
|
#include "system.h"
|
|
#include "tree.h"
|
|
#include "input.h"
|
|
#include "java-tree.h"
|
|
#include "jcf.h"
|
|
#include "toplev.h"
|
|
|
|
/* Table indexed by tree code giving a string containing a character
|
|
classifying the tree code. Possibilities are
|
|
t, d, s, c, r, <, 1 and 2. See java/java-tree.def for details. */
|
|
|
|
#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
|
|
|
|
char java_tree_code_type[] = {
|
|
'x',
|
|
#include "java-tree.def"
|
|
};
|
|
#undef DEFTREECODE
|
|
|
|
/* Table indexed by tree code giving number of expression
|
|
operands beyond the fixed part of the node structure.
|
|
Not used for types or decls. */
|
|
|
|
#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
|
|
|
|
int java_tree_code_length[] = {
|
|
0,
|
|
#include "java-tree.def"
|
|
};
|
|
#undef DEFTREECODE
|
|
|
|
/* Names of tree components.
|
|
Used for printing out the tree and error messages. */
|
|
#define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
|
|
|
|
char *java_tree_code_name[] = {
|
|
"@@dummy",
|
|
#include "java-tree.def"
|
|
};
|
|
#undef DEFTREECODE
|
|
|
|
int compiling_from_source;
|
|
|
|
char *language_string = "GNU Java";
|
|
|
|
/* Nonzero if we want to automatically do array bounds checking;
|
|
on by default. Use -fno-bounds-check to disable. */
|
|
|
|
int flag_bounds_check = 1;
|
|
|
|
/* Nonzero if we should make is_compiled_class always return 1 for
|
|
appropriate classes that we're referencing. */
|
|
|
|
int flag_assume_compiled = 1;
|
|
|
|
int flag_emit_class_files = 0;
|
|
|
|
/* From gcc/flags.h, and idicates if exceptions are turned on or not. */
|
|
|
|
extern int flag_new_exceptions;
|
|
extern int flag_exceptions;
|
|
|
|
/* Table of language-dependent -f options.
|
|
STRING is the option name. VARIABLE is the address of the variable.
|
|
ON_VALUE is the value to store in VARIABLE
|
|
if `-fSTRING' is seen as an option.
|
|
(If `-fno-STRING' is seen as an option, the opposite value is stored.) */
|
|
|
|
static struct { char *string; int *variable; int on_value;} lang_f_options[] =
|
|
{
|
|
{"bounds-check", &flag_bounds_check, 1},
|
|
{"assume-compiled", &flag_assume_compiled, 1},
|
|
{"emit-class-file", &flag_emit_class_files, 1},
|
|
{"emit-class-files", &flag_emit_class_files, 1},
|
|
};
|
|
|
|
JCF main_jcf[1];
|
|
JCF *current_jcf;
|
|
|
|
/*
|
|
* process java-specific compiler command-line options
|
|
*/
|
|
int
|
|
lang_decode_option (argc, argv)
|
|
int argc;
|
|
char **argv;
|
|
{
|
|
char *p = argv[0];
|
|
if (p[0] == '-' && p[1] == 'f')
|
|
{
|
|
/* Some kind of -f option.
|
|
P's value is the option sans `-f'.
|
|
Search for it in the table of options. */
|
|
int found = 0, j;
|
|
|
|
p += 2;
|
|
|
|
for (j = 0;
|
|
!found && j < sizeof (lang_f_options) / sizeof (lang_f_options[0]);
|
|
j++)
|
|
{
|
|
if (!strcmp (p, lang_f_options[j].string))
|
|
{
|
|
*lang_f_options[j].variable = lang_f_options[j].on_value;
|
|
/* A goto here would be cleaner,
|
|
but breaks the vax pcc. */
|
|
found = 1;
|
|
}
|
|
if (p[0] == 'n' && p[1] == 'o' && p[2] == '-'
|
|
&& ! strcmp (p+3, lang_f_options[j].string))
|
|
{
|
|
*lang_f_options[j].variable = ! lang_f_options[j].on_value;
|
|
found = 1;
|
|
}
|
|
}
|
|
return found;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
FILE *finput;
|
|
char *
|
|
init_parse (filename)
|
|
char *filename;
|
|
{
|
|
/* Open input file. */
|
|
|
|
if (filename == 0 || !strcmp (filename, "-"))
|
|
{
|
|
finput = stdin;
|
|
filename = "stdin";
|
|
}
|
|
else
|
|
finput = fopen (filename, "r");
|
|
if (finput == 0)
|
|
pfatal_with_name (filename);
|
|
|
|
#ifdef IO_BUFFER_SIZE
|
|
setvbuf (finput, (char *) xmalloc (IO_BUFFER_SIZE), _IOFBF, IO_BUFFER_SIZE);
|
|
#endif
|
|
init_lex ();
|
|
|
|
return filename;
|
|
}
|
|
|
|
void
|
|
finish_parse ()
|
|
{
|
|
fclose (finput);
|
|
}
|
|
|
|
/* Buffer used by lang_printable_name. */
|
|
static char *decl_buf = NULL;
|
|
|
|
/* Allocated size of decl_buf. */
|
|
static int decl_buflen = 0;
|
|
|
|
/* Length of used part of decl_buf; position for next character. */
|
|
static int decl_bufpos = 0;
|
|
|
|
/* Append the string STR to decl_buf.
|
|
It length is given by LEN; -1 means the string is nul-terminated. */
|
|
|
|
static void
|
|
put_decl_string (str, len)
|
|
char *str;
|
|
int len;
|
|
{
|
|
if (len < 0)
|
|
len = strlen (str);
|
|
if (decl_bufpos + len >= decl_buflen)
|
|
{
|
|
if (decl_buf == NULL)
|
|
{
|
|
decl_buflen = len + 100;
|
|
decl_buf = (char *) xmalloc (decl_buflen);
|
|
}
|
|
else
|
|
{
|
|
decl_buflen *= 2;
|
|
decl_buf = (char *) xrealloc (decl_buf, decl_buflen);
|
|
}
|
|
}
|
|
strcpy (decl_buf + decl_bufpos, str);
|
|
decl_bufpos += len;
|
|
}
|
|
|
|
/* Append to decl_buf a printable name for NODE. */
|
|
|
|
static void
|
|
put_decl_node (node)
|
|
tree node;
|
|
{
|
|
int was_pointer = 0;
|
|
if (TREE_CODE (node) == POINTER_TYPE)
|
|
{
|
|
node = TREE_TYPE (node);
|
|
was_pointer = 1;
|
|
}
|
|
if (TREE_CODE_CLASS (TREE_CODE (node)) == 'd'
|
|
&& DECL_NAME (node) != NULL_TREE)
|
|
{
|
|
#if 0
|
|
if (DECL_CONTEXT (node) != NULL_TREE)
|
|
{
|
|
put_decl_node (DECL_CONTEXT (node));
|
|
put_decl_string (".", 1);
|
|
}
|
|
#endif
|
|
put_decl_node (DECL_NAME (node));
|
|
if (TREE_CODE (node) == FUNCTION_DECL && TREE_TYPE (node) != NULL_TREE)
|
|
{
|
|
int i = 0;
|
|
tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
|
|
if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
|
|
args = TREE_CHAIN (args);
|
|
put_decl_string ("(", 1);
|
|
for ( ; args != NULL_TREE; args = TREE_CHAIN (args), i++)
|
|
{
|
|
if (i > 0)
|
|
put_decl_string (",", 1);
|
|
put_decl_node (TREE_VALUE (args));
|
|
}
|
|
put_decl_string (")", 1);
|
|
}
|
|
}
|
|
else if (TREE_CODE_CLASS (TREE_CODE (node)) == 't'
|
|
&& TYPE_NAME (node) != NULL_TREE)
|
|
{
|
|
if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
|
|
{
|
|
put_decl_node (TYPE_ARRAY_ELEMENT (node));
|
|
put_decl_string("[]", 2);
|
|
}
|
|
else if (node == promoted_byte_type_node)
|
|
put_decl_string ("byte", 4);
|
|
else if (node == promoted_short_type_node)
|
|
put_decl_string ("short", 5);
|
|
else if (node == promoted_char_type_node)
|
|
put_decl_string ("char", 4);
|
|
else if (node == promoted_boolean_type_node)
|
|
put_decl_string ("boolean", 7);
|
|
else if (node == void_type_node && was_pointer)
|
|
put_decl_string ("null", 4);
|
|
else
|
|
put_decl_node (TYPE_NAME (node));
|
|
}
|
|
else if (TREE_CODE (node) == IDENTIFIER_NODE)
|
|
put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
|
|
else
|
|
put_decl_string ("<unknown>", -1);
|
|
}
|
|
|
|
/* Return a user-friendly name for DECL.
|
|
The resulting string is only valid until the next call.
|
|
The value of the hook decl_printable_name is this function,
|
|
which is also called directly by lang_print_error. */
|
|
|
|
char *
|
|
lang_printable_name (decl, v)
|
|
tree decl;
|
|
int v;
|
|
{
|
|
decl_bufpos = 0;
|
|
put_decl_node (decl);
|
|
put_decl_string ("", 1);
|
|
return decl_buf;
|
|
}
|
|
|
|
/* Print on stderr the current class and method context. This function
|
|
is the value of the hook print_error_function, called from toplev.c. */
|
|
|
|
void
|
|
lang_print_error (file)
|
|
char *file;
|
|
{
|
|
static tree last_error_function_context = NULL_TREE;
|
|
static tree last_error_function = NULL;
|
|
|
|
if (current_function_decl != NULL
|
|
&& DECL_CONTEXT (current_function_decl) != last_error_function_context)
|
|
{
|
|
if (file)
|
|
fprintf (stderr, "%s: ", file);
|
|
|
|
last_error_function_context = DECL_CONTEXT (current_function_decl);
|
|
fprintf (stderr, "In class `%s':\n",
|
|
lang_printable_name (last_error_function_context));
|
|
}
|
|
if (last_error_function != current_function_decl)
|
|
{
|
|
if (file)
|
|
fprintf (stderr, "%s: ", file);
|
|
|
|
if (current_function_decl == NULL)
|
|
fprintf (stderr, "At top level:\n");
|
|
else
|
|
{
|
|
char *name = lang_printable_name (current_function_decl, 2);
|
|
fprintf (stderr, "In method `%s':\n", name);
|
|
}
|
|
|
|
last_error_function = current_function_decl;
|
|
}
|
|
|
|
}
|
|
|
|
void
|
|
lang_init ()
|
|
{
|
|
extern struct rtx_def * java_lang_expand_expr ();
|
|
extern struct rtx_def * (*lang_expand_expr) ();
|
|
extern void (*print_error_function) PROTO((char *));
|
|
#if 0
|
|
extern int flag_minimal_debug;
|
|
flag_minimal_debug = 0;
|
|
#endif
|
|
|
|
decl_printable_name = lang_printable_name;
|
|
print_error_function = lang_print_error;
|
|
lang_expand_expr = java_lang_expand_expr;
|
|
|
|
JCF_ZERO (main_jcf);
|
|
main_jcf->read_state = finput;
|
|
main_jcf->filbuf = jcf_filbuf_from_stdio;
|
|
current_jcf = main_jcf;
|
|
|
|
flag_exceptions = 1;
|
|
|
|
/* Append to Gcc tree node definition arrays */
|
|
|
|
bcopy (java_tree_code_type,
|
|
tree_code_type + (int) LAST_AND_UNUSED_TREE_CODE,
|
|
(int)LAST_JAVA_TREE_CODE - (int)LAST_AND_UNUSED_TREE_CODE);
|
|
bcopy ((char *)java_tree_code_length,
|
|
(char *)(tree_code_length + (int) LAST_AND_UNUSED_TREE_CODE),
|
|
(LAST_JAVA_TREE_CODE -
|
|
(int)LAST_AND_UNUSED_TREE_CODE) * sizeof (int));
|
|
bcopy ((char *)java_tree_code_name,
|
|
(char *)(tree_code_name + (int) LAST_AND_UNUSED_TREE_CODE),
|
|
(LAST_JAVA_TREE_CODE -
|
|
(int)LAST_AND_UNUSED_TREE_CODE) * sizeof (char *));
|
|
}
|
|
|
|
/* This doesn't do anything on purpose. It's used to satisfy the
|
|
print_error_function hook we don't print error messages with bogus
|
|
function prototypes. */
|
|
|
|
void java_dummy_print (s)
|
|
char *s;
|
|
{
|
|
}
|
|
|
|
/* Called to install the PRINT_ERROR_FUNCTION hook differently
|
|
according to LEVEL. LEVEL is 1 during early parsing, when function
|
|
prototypes aren't fully resolved. print_error_function is set so it
|
|
doesn't print incomplete function prototypes. When LEVEL is 2,
|
|
function prototypes are fully resolved and can be printed when
|
|
reporting errors. */
|
|
|
|
void lang_init_source (level)
|
|
int level;
|
|
{
|
|
extern void (*print_error_function) PROTO((char *));
|
|
if (level == 1)
|
|
print_error_function = java_dummy_print;
|
|
else
|
|
print_error_function = lang_print_error;
|
|
}
|
|
|
|
void
|
|
lang_init_options ()
|
|
{
|
|
flag_new_exceptions = 1;
|
|
}
|
|
|
|
void
|
|
lang_finish ()
|
|
{
|
|
}
|
|
|
|
char*
|
|
lang_identify ()
|
|
{
|
|
return "Java";
|
|
}
|
|
|
|
/* Hooks for print_node. */
|
|
|
|
void
|
|
print_lang_decl (file, node, indent)
|
|
FILE *file;
|
|
tree node;
|
|
int indent;
|
|
{
|
|
}
|
|
|
|
void
|
|
print_lang_type (file, node, indent)
|
|
FILE *file;
|
|
tree node;
|
|
int indent;
|
|
{
|
|
}
|
|
|
|
void
|
|
print_lang_identifier (file, node, indent)
|
|
FILE *file;
|
|
tree node;
|
|
int indent;
|
|
{
|
|
}
|
|
|
|
void
|
|
print_lang_statistics ()
|
|
{
|
|
}
|
|
|
|
/* used by print-tree.c */
|
|
|
|
void
|
|
lang_print_xnode (file, node, indent)
|
|
FILE *file;
|
|
tree node;
|
|
int indent;
|
|
{
|
|
}
|