601 lines
14 KiB
C
601 lines
14 KiB
C
/* Java(TM) language-specific utility routines.
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Copyright (C) 1996, 97-98, 1999 Free Software Foundation, Inc.
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA.
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Java and all Java-based marks are trademarks or registered trademarks
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of Sun Microsystems, Inc. in the United States and other countries.
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The Free Software Foundation is independent of Sun Microsystems, Inc. */
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/* Hacked by Per Bothner <bothner@cygnus.com> February 1996. */
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#include "config.h"
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#include "system.h"
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#include "tree.h"
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#include "input.h"
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#include "java-tree.h"
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#include "jcf.h"
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#include "toplev.h"
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#include "flags.h"
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#include "xref.h"
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#ifndef OBJECT_SUFFIX
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# define OBJECT_SUFFIX ".o"
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#endif
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/* Table indexed by tree code giving a string containing a character
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classifying the tree code. Possibilities are
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t, d, s, c, r, <, 1 and 2. See java/java-tree.def for details. */
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#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) TYPE,
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char java_tree_code_type[] = {
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'x',
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#include "java-tree.def"
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};
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#undef DEFTREECODE
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/* Table indexed by tree code giving number of expression
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operands beyond the fixed part of the node structure.
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Not used for types or decls. */
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#define DEFTREECODE(SYM, NAME, TYPE, LENGTH) LENGTH,
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int java_tree_code_length[] = {
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0,
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#include "java-tree.def"
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};
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#undef DEFTREECODE
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/* Names of tree components.
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Used for printing out the tree and error messages. */
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#define DEFTREECODE(SYM, NAME, TYPE, LEN) NAME,
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const char *java_tree_code_name[] = {
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"@@dummy",
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#include "java-tree.def"
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};
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#undef DEFTREECODE
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int compiling_from_source;
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char *language_string = "GNU Java";
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/* Nonzero if we want to automatically do array bounds checking;
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on by default. Use -fno-bounds-check to disable. */
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int flag_bounds_check = 1;
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/* Nonzero if we should make is_compiled_class always return 1 for
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appropriate classes that we're referencing. */
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int flag_assume_compiled = 1;
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int flag_emit_class_files = 0;
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/* When non zero, we emit xref strings. Values of the flag for xref
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backends are defined in xref_flag_table, xref.c. */
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int flag_emit_xref = 0;
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/* When non zero, -Wall was turned on. */
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int flag_wall = 0;
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/* When non zero, check for redundant modifier uses. */
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int flag_redundant = 0;
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/* When non zero, warns about overridings that don't occur. */
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int flag_not_overriding = 0;
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/* When non zero, warns that final local are treated as non final. */
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int flag_static_local_jdk1_1 = 0;
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/* From gcc/flags.h, and indicates if exceptions are turned on or not. */
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extern int flag_new_exceptions;
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extern int flag_exceptions;
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/* Table of language-dependent -f options.
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STRING is the option name. VARIABLE is the address of the variable.
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ON_VALUE is the value to store in VARIABLE
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if `-fSTRING' is seen as an option.
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(If `-fno-STRING' is seen as an option, the opposite value is stored.) */
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static struct { const char *string; int *variable; int on_value;}
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lang_f_options[] =
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{
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{"bounds-check", &flag_bounds_check, 1},
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{"assume-compiled", &flag_assume_compiled, 1},
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{"emit-class-file", &flag_emit_class_files, 1},
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{"emit-class-files", &flag_emit_class_files, 1},
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};
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JCF *current_jcf;
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/* Variable controlling how dependency tracking is enabled in
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init_parse. */
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static int dependency_tracking = 0;
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/* Flag values for DEPENDENCY_TRACKING. */
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#define DEPEND_SET_FILE 1
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#define DEPEND_ENABLE 2
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/*
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* process java-specific compiler command-line options
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*/
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int
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lang_decode_option (argc, argv)
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int argc __attribute__ ((__unused__));
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char **argv;
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{
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char *p = argv[0];
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#define CLARG "-fclasspath="
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if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
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{
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jcf_path_classpath_arg (p + sizeof (CLARG) - 1);
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return 1;
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}
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#undef CLARG
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#define CLARG "-fCLASSPATH="
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else if (strncmp (p, CLARG, sizeof (CLARG) - 1) == 0)
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{
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jcf_path_CLASSPATH_arg (p + sizeof (CLARG) - 1);
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return 1;
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}
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#undef CLARG
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else if (strncmp (p, "-I", 2) == 0)
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{
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jcf_path_include_arg (p + 2);
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return 1;
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}
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#define ARG "-foutput-class-dir="
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if (strncmp (p, ARG, sizeof (ARG) - 1) == 0)
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{
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jcf_write_base_directory = p + sizeof (ARG) - 1;
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return 1;
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}
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#undef ARG
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if (p[0] == '-' && p[1] == 'f')
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{
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/* Some kind of -f option.
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P's value is the option sans `-f'.
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Search for it in the table of options. */
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int found = 0, j;
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p += 2;
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for (j = 0;
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!found
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&& j < (int)(sizeof (lang_f_options) / sizeof (lang_f_options[0]));
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j++)
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{
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if (!strcmp (p, lang_f_options[j].string))
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{
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*lang_f_options[j].variable = lang_f_options[j].on_value;
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/* A goto here would be cleaner,
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but breaks the vax pcc. */
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found = 1;
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}
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if (p[0] == 'n' && p[1] == 'o' && p[2] == '-'
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&& ! strcmp (p+3, lang_f_options[j].string))
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{
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*lang_f_options[j].variable = ! lang_f_options[j].on_value;
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found = 1;
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}
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}
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return found;
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}
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if (strcmp (p, "-Wall") == 0)
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{
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flag_wall = 1;
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flag_redundant = 1;
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return 1;
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}
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if (strcmp (p, "-Wunsupported-jdk11") == 0)
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{
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flag_static_local_jdk1_1 = 1;
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return 1;
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}
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if (strcmp (p, "-Wredundant-modifiers") == 0)
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{
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flag_redundant = 1;
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return 1;
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}
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if (strcmp (p, "-MD") == 0)
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{
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jcf_dependency_init (1);
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dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
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return 1;
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}
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else if (strcmp (p, "-MMD") == 0)
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{
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jcf_dependency_init (0);
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dependency_tracking |= DEPEND_SET_FILE | DEPEND_ENABLE;
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return 1;
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}
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else if (strcmp (p, "-M") == 0)
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{
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jcf_dependency_init (1);
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dependency_tracking |= DEPEND_ENABLE;
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return 1;
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}
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else if (strcmp (p, "-MM") == 0)
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{
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jcf_dependency_init (0);
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dependency_tracking |= DEPEND_ENABLE;
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return 1;
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}
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return 0;
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}
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FILE *finput;
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char *
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init_parse (filename)
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char *filename;
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{
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/* Open input file. */
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if (filename == 0 || !strcmp (filename, "-"))
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{
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finput = stdin;
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filename = "stdin";
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if (dependency_tracking)
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error ("can't do dependency tracking with input from stdin");
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}
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else
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{
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if (dependency_tracking)
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{
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char *dot;
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dot = strrchr (filename, '.');
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if (dot == NULL)
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error ("couldn't determine target name for dependency tracking");
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else
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{
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char *buf = (char *) xmalloc (dot - filename +
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3 + sizeof (OBJECT_SUFFIX));
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strncpy (buf, filename, dot - filename);
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/* If emitting class files, we might have multiple
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targets. The class generation code takes care of
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registering them. Otherwise we compute the target
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name here. */
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if (flag_emit_class_files)
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jcf_dependency_set_target (NULL);
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else
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{
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strcpy (buf + (dot - filename), OBJECT_SUFFIX);
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jcf_dependency_set_target (buf);
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}
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if ((dependency_tracking & DEPEND_SET_FILE))
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{
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strcpy (buf + (dot - filename), ".d");
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jcf_dependency_set_dep_file (buf);
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}
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else
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jcf_dependency_set_dep_file ("-");
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free (buf);
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}
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}
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}
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init_lex ();
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return filename;
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}
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void
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finish_parse ()
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{
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fclose (finput);
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jcf_dependency_write ();
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}
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/* Buffer used by lang_printable_name. */
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static char *decl_buf = NULL;
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/* Allocated size of decl_buf. */
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static int decl_buflen = 0;
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/* Length of used part of decl_buf; position for next character. */
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static int decl_bufpos = 0;
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/* Append the string STR to decl_buf.
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It length is given by LEN; -1 means the string is nul-terminated. */
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static void
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put_decl_string (str, len)
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char *str;
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int len;
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{
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if (len < 0)
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len = strlen (str);
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if (decl_bufpos + len >= decl_buflen)
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{
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if (decl_buf == NULL)
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{
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decl_buflen = len + 100;
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decl_buf = (char *) xmalloc (decl_buflen);
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}
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else
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{
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decl_buflen *= 2;
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decl_buf = (char *) xrealloc (decl_buf, decl_buflen);
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}
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}
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strcpy (decl_buf + decl_bufpos, str);
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decl_bufpos += len;
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}
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/* Append to decl_buf a printable name for NODE. */
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static void
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put_decl_node (node)
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tree node;
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{
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int was_pointer = 0;
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if (TREE_CODE (node) == POINTER_TYPE)
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{
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node = TREE_TYPE (node);
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was_pointer = 1;
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}
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if (TREE_CODE_CLASS (TREE_CODE (node)) == 'd'
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&& DECL_NAME (node) != NULL_TREE)
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{
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#if 0
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if (DECL_CONTEXT (node) != NULL_TREE)
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{
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put_decl_node (DECL_CONTEXT (node));
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put_decl_string (".", 1);
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}
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#endif
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if (TREE_CODE (node) == FUNCTION_DECL
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&& DECL_NAME (node) == init_identifier_node
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&& !DECL_ARTIFICIAL (node) && current_class)
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put_decl_node (TYPE_NAME (current_class));
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else
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put_decl_node (DECL_NAME (node));
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if (TREE_CODE (node) == FUNCTION_DECL && TREE_TYPE (node) != NULL_TREE)
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{
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int i = 0;
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tree args = TYPE_ARG_TYPES (TREE_TYPE (node));
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if (TREE_CODE (TREE_TYPE (node)) == METHOD_TYPE)
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args = TREE_CHAIN (args);
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put_decl_string ("(", 1);
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for ( ; args != end_params_node; args = TREE_CHAIN (args), i++)
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{
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if (i > 0)
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put_decl_string (",", 1);
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put_decl_node (TREE_VALUE (args));
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}
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put_decl_string (")", 1);
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}
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}
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else if (TREE_CODE_CLASS (TREE_CODE (node)) == 't'
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&& TYPE_NAME (node) != NULL_TREE)
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{
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if (TREE_CODE (node) == RECORD_TYPE && TYPE_ARRAY_P (node))
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{
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put_decl_node (TYPE_ARRAY_ELEMENT (node));
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put_decl_string("[]", 2);
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}
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else if (node == promoted_byte_type_node)
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put_decl_string ("byte", 4);
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else if (node == promoted_short_type_node)
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put_decl_string ("short", 5);
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else if (node == promoted_char_type_node)
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put_decl_string ("char", 4);
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else if (node == promoted_boolean_type_node)
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put_decl_string ("boolean", 7);
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else if (node == void_type_node && was_pointer)
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put_decl_string ("null", 4);
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else
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put_decl_node (TYPE_NAME (node));
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}
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else if (TREE_CODE (node) == IDENTIFIER_NODE)
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put_decl_string (IDENTIFIER_POINTER (node), IDENTIFIER_LENGTH (node));
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else
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put_decl_string ("<unknown>", -1);
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}
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/* Return a user-friendly name for DECL.
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The resulting string is only valid until the next call.
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The value of the hook decl_printable_name is this function,
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which is also called directly by lang_print_error. */
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char *
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lang_printable_name (decl, v)
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tree decl;
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int v __attribute__ ((__unused__));
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{
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decl_bufpos = 0;
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put_decl_node (decl);
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put_decl_string ("", 1);
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return decl_buf;
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}
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/* Print on stderr the current class and method context. This function
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is the value of the hook print_error_function, called from toplev.c. */
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void
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lang_print_error (file)
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char *file;
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{
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static tree last_error_function_context = NULL_TREE;
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static tree last_error_function = NULL;
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if (current_function_decl != NULL
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&& DECL_CONTEXT (current_function_decl) != last_error_function_context)
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{
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if (file)
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fprintf (stderr, "%s: ", file);
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last_error_function_context = DECL_CONTEXT (current_function_decl);
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fprintf (stderr, "In class `%s':\n",
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lang_printable_name (last_error_function_context, 0));
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}
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if (last_error_function != current_function_decl)
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{
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if (file)
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fprintf (stderr, "%s: ", file);
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if (current_function_decl == NULL)
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fprintf (stderr, "At top level:\n");
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else
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{
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char *name = lang_printable_name (current_function_decl, 2);
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fprintf (stderr, "In method `%s':\n", name);
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}
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last_error_function = current_function_decl;
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}
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}
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void
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lang_init ()
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{
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extern struct rtx_def * java_lang_expand_expr ();
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extern struct rtx_def * (*lang_expand_expr) ();
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extern void (*print_error_function) PROTO((char *));
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#if 0
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extern int flag_minimal_debug;
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flag_minimal_debug = 0;
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#endif
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jcf_path_init ();
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jcf_path_seal ();
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decl_printable_name = lang_printable_name;
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print_error_function = lang_print_error;
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lang_expand_expr = java_lang_expand_expr;
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flag_exceptions = 1;
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/* Append to Gcc tree node definition arrays */
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bcopy (java_tree_code_type,
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tree_code_type + (int) LAST_AND_UNUSED_TREE_CODE,
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(int)LAST_JAVA_TREE_CODE - (int)LAST_AND_UNUSED_TREE_CODE);
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bcopy ((char *)java_tree_code_length,
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(char *)(tree_code_length + (int) LAST_AND_UNUSED_TREE_CODE),
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(LAST_JAVA_TREE_CODE -
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(int)LAST_AND_UNUSED_TREE_CODE) * sizeof (int));
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bcopy ((char *)java_tree_code_name,
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(char *)(tree_code_name + (int) LAST_AND_UNUSED_TREE_CODE),
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(LAST_JAVA_TREE_CODE -
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(int)LAST_AND_UNUSED_TREE_CODE) * sizeof (char *));
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using_eh_for_cleanups ();
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}
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/* This doesn't do anything on purpose. It's used to satisfy the
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print_error_function hook we don't print error messages with bogus
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function prototypes. */
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void java_dummy_print (s)
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char *s __attribute__ ((__unused__));
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{
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}
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/* Called to install the PRINT_ERROR_FUNCTION hook differently
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according to LEVEL. LEVEL is 1 during early parsing, when function
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prototypes aren't fully resolved. print_error_function is set so it
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doesn't print incomplete function prototypes. When LEVEL is 2,
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function prototypes are fully resolved and can be printed when
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reporting errors. */
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void lang_init_source (level)
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int level;
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{
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extern void (*print_error_function) PROTO((char *));
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if (level == 1)
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print_error_function = java_dummy_print;
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else
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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 __attribute ((__unused__));
|
|
tree node __attribute ((__unused__));
|
|
int indent __attribute ((__unused__));
|
|
{
|
|
}
|
|
|
|
void
|
|
print_lang_type (file, node, indent)
|
|
FILE *file __attribute ((__unused__));
|
|
tree node __attribute ((__unused__));
|
|
int indent __attribute ((__unused__));
|
|
{
|
|
}
|
|
|
|
void
|
|
print_lang_identifier (file, node, indent)
|
|
FILE *file __attribute ((__unused__));
|
|
tree node __attribute ((__unused__));
|
|
int indent __attribute ((__unused__));
|
|
{
|
|
}
|
|
|
|
void
|
|
print_lang_statistics ()
|
|
{
|
|
}
|
|
|
|
/* used by print-tree.c */
|
|
|
|
void
|
|
lang_print_xnode (file, node, indent)
|
|
FILE *file __attribute ((__unused__));
|
|
tree node __attribute ((__unused__));
|
|
int indent __attribute ((__unused__));
|
|
{
|
|
}
|