Add -fno-assert flag.

From-SVN: r57649

gcc/java/ChangeLog

+2002-09-28  Anthony Green  <green@redhat.com>
+
+	* gcj.texi (Invoking jv-scan): Add --no-assert documentation.
+	(Code Generation): Add -fno-assert documentation.
+	* jv-scan.c (flag_assert): New global.
+	(options): Add assert option.
+	(help): Add --no-assert documentation.
+	* parse-scan.y (flag_assert): New global.
+	* lang.c (lang_f_options): Add -fassert/-fno-assert support.
+	(flag_assert): New global.
+	* java-tree.h (flag_assert): New global.
+	* lex.c (java_lex): Obey flag_assert.
+	* jvspec.c (jvgenmain_spec): Strip -fassert/-fno-assert when
+	calling cc1.
+
 2002-09-26  Andrew Haley  <aph@redhat.com>
 
 	* expr.c (build_java_array_length_access): Check for null pointer.

gcc/java/gcj.texi

@@ -428,6 +428,10 @@ using JNI, then you must use @code{-fjni}.  This option causes
 @command{gcj} to generate stubs which will invoke the underlying JNI
 methods.
 
+@item -fno-assert
+Don't recognize the @code{assert} keyword.  This is for compatibility
+with older versions of the language specification.
+
 @item -fno-optimize-static-class-initialization
 When the optimization level is greater or equal to @code{-O2},
 @command{gcj} will try to optimize the way calls into the runtime are made
@@ -622,8 +626,9 @@ source file (@file{.java} file).
 
 @ignore
 @c man begin SYNOPSIS jv-scan
-jv-scan [@option{--complexity}] [@option{--encoding}=@var{name}]
-    [@option{--print-main}] [@option{--list-class}] [@option{--list-filename}]
+jv-scan [@option{--no-assert}] [@option{--complexity}] 
+    [@option{--encoding}=@var{name}] [@option{--print-main}] 
+    [@option{--list-class}] [@option{--list-filename}]
     [@option{--version}] [@option{--help}]
     [@option{-o} @var{file}] @var{inputfile}@dots{}
 @c man end
@@ -636,6 +641,11 @@ and the Info entries for @file{gcj} and @file{gcc}.
 @c man begin OPTIONS jv-scan
 
 @table @gcctabopt
+@item --no-assert
+Don't recognize the @code{assert} keyword, for backwards compatibility
+with older versions of the language specification.
+
+@table @gcctabopt
 @item --complexity
 This prints a complexity measure, related to cyclomatic complexity, for
 each input file.

gcc/java/java-tree.h

@@ -160,6 +160,10 @@ extern int flag_emit_class_files;
 
 extern int flag_filelist_file;
 
+/* When nonzero, permit the use of the assert keyword.  */
+
+extern int flag_assert;
+
 /* When nonzero, assume all native functions are implemented with
    JNI, not CNI.  */
 

gcc/java/jv-scan.c

@@ -64,6 +64,7 @@ int flag_find_main = 0;
 int flag_dump_class = 0;
 int flag_list_filename = 0;
 int flag_complexity = 0;
+int flag_assert = 1;
 
 int pedantic = 0;
 
@@ -85,6 +86,8 @@ static const struct option options[] =
   { "list-class", no_argument,      &flag_dump_class, 1 },
   { "encoding",  required_argument, NULL, OPT_ENCODING },
   { "complexity", no_argument,	    &flag_complexity, 1 },
+  { "no-assert", no_argument,       &flag_assert, 0 },
+  { "assert",    no_argument,       &flag_assert, 1 },
   { NULL,        no_argument,       NULL, 0 }
 };
 
@@ -100,6 +103,7 @@ help ()
 {
   printf ("Usage: jv-scan [OPTION]... FILE...\n\n");
   printf ("Print useful information read from Java source files.\n\n");
+  printf ("  --no-assert             Don't recognize the assert keyword\n");
   printf ("  --complexity            Print cyclomatic complexity of input file\n");
   printf ("  --encoding NAME         Specify encoding of input file\n");
   printf ("  --print-main            Print name of class containing `main'\n");

gcc/java/jvspec.c

@@ -62,7 +62,7 @@ static const char jvgenmain_spec[] =
 		   %{v:-version} %{pg:-p} %{p}\
 		   %{<fbounds-check} %{<fno-bounds-check}\
 		   %{<fassume-compiled} %{<fno-assume-compiled}\
-                   %{<fcompile-resource*}\
+                   %{<fcompile-resource*} %{<fassert} %{<fno-assert} \
 		   %{<femit-class-file} %{<femit-class-files} %{<fencoding*}\
 		   %{<fuse-boehm-gc} %{<fhash-synchronization} %{<fjni}\
 		   %{<findirect-dispatch} \

gcc/java/lang.c

@@ -147,6 +147,9 @@ int flag_use_boehm_gc = 0;
    object to its synchronization structure.  */
 int flag_hash_synchronization;
 
+/* When nonzero, permit the use of the assert keyword.  */
+int flag_assert = 1;
+
 /* When nonzero, assume all native functions are implemented with
    JNI, not CNI.  */
 int flag_jni = 0;
@@ -205,7 +208,8 @@ lang_f_options[] =
   {"force-classes-archive-check", &flag_force_classes_archive_check, 1},
   {"optimize-static-class-initialization", &flag_optimize_sci, 1 },
   {"indirect-dispatch", &flag_indirect_dispatch, 1},
-  {"store-check", &flag_store_check, 1}
+  {"store-check", &flag_store_check, 1},
+  {"assert", &flag_assert, 1}
 };
 
 static const struct string_option

gcc/java/lex.c

@@ -1604,6 +1604,15 @@ java_lex (java_lval)
 	      SET_LVAL_NODE (null_pointer_node);
 	      return NULL_TK;
 
+	    case ASSERT_TK:
+	      if (flag_assert)
+		{
+		  BUILD_OPERATOR (kw->token);
+		  return kw->token;
+		}
+	      else
+		break;
+
 	      /* Some keyword we want to retain information on the location
 		 they where found.  */
 	    case CASE_TK:
@@ -1617,7 +1626,6 @@ java_lex (java_lval)
 	    case CATCH_TK:
 	    case THROW_TK:
 	    case INSTANCEOF_TK:
-	    case ASSERT_TK:
 	      BUILD_OPERATOR (kw->token);
 
 	    default:

gcc/java/parse-scan.y

@@ -135,6 +135,8 @@ void report PARAMS ((void));
 }
 
 %{
+extern int flag_assert;
+
 #include "lex.c"
 %}