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Added support for progname and exit status in grade Java.

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Added support for progname and exit status in grade Java.

compiler/mlds_to_java.m:
	Added code to maybe_write_main_driver/5 to store the main class's name
	and exit status in mercury.runtime.JavaInternal's static variables.
	Also, main() now calls java.lang.System.exit() instead of returning,
	since Java insists that main must have void return type.

java/runtime/JavaInternal.java:
	Added static variables "progname" and "exit_status".
This commit is contained in:
James Goddard
2003-12-22 23:37:43 +00:00
parent 1b36dc1317
commit 7c8066732a
2 changed files with 23 additions and 9 deletions
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13
java/runtime/JavaInternal.java
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@@ -1,5 +1,5 @@
//
// Copyright (C) 2001-2002 The University of Melbourne.
// Copyright (C) 2001-2003 The University of Melbourne.
// This file may only be copied under the terms of the GNU Library General
// Public License - see the file COPYING.LIB in the Mercury distribution.
//
@@ -8,13 +8,16 @@
// compiler/mlds_to_java.m
//
//
// At the moment this class is just used to store the command line
// arguments. We can't put them in one of the library modules because
// we need to hold them in a class variable in a top level class.
// At the moment this class is used to store the main module's name (progname),
// command line arguments and the exit status. We can't put them in one of the
// library modules because we need to hold them in a class variable in a top
// level class.
//
package mercury.runtime;
public class JavaInternal {
public static java.lang.String[] args;
public static java.lang.String progname;
public static java.lang.String[] args;
public static int exit_status;
}