gecko-dev/ef/Runtime/NativeMethods/main.cpp

98 строки
2.9 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
*
* The contents of this file are subject to the Netscape Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/NPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Netscape
* Communications Corporation. Portions created by Netscape are
* Copyright (C) 1998 Netscape Communications Corporation. All
* Rights Reserved.
*
* Contributor(s):
*/
#include "NativeMethodDispatcher.h"
Pool p;
StringPool sp(p);
ClassWorld world(p);
/* Simple test for the native method dispatch mechanism
* argv[1] -- fully qualified classname
* argv[2] -- shared lib to load (without system-specific extension)
* argv[3] -- methodName (optional)
*/
int main(int argc, char **argv)
{
const char *className = argv[1];
const char *libName = argv[2];
const char *methodName = (argc > 3) ? argv[3] : 0;
Method *theMethod = 0;
ClassCentral central(p, world, sp, 0);
initDistinguishedObjects(central);
NativeMethodDispatcher::staticInit();
ClassFileSummary &summ = central.addClass(className);
/* Load the shared library */
if (NativeMethodDispatcher::loadLibrary(libName) == 0) {
fprintf(stderr, "Cannot load library %s\n", libName);
return 1;
}
/* Now display all methods and ask the user to pick a method to resolve */
if (!methodName) {
fprintf(stderr, "Choose from the following methods:\n");
Method **methods = (Method **) summ.getMethods();
int32 methodCount = summ.getMethodCount();
for (int32 i = 0; i < methodCount; i++) {
const char *name = methods[i]->toString();
if (methods[i]->getModifiers() & CR_METHOD_NATIVE)
fprintf(stderr, "%d. %s\n", i+1, name);
}
fprintf(stderr, "\nChoose number of choice-> ");
char s[80];
gets(s);
int choice = atoi(s)-1;
if (choice > 0 && choice <= methodCount) {
methodName = methods[choice]->toString();
theMethod = methods[choice];
} else {
fprintf(stderr, "Bad Boy. You have entered a bad index. Try again.\n");
return 1;
}
} else {
if (!(methodName = sp.get(methodName)) ||
!(world.getMethod(methodName, theMethod))) {
fprintf(stderr, "That seems to be an invalid methodname. Try again.\n");
return 1;
}
}
assert(theMethod);
if (NativeMethodDispatcher::resolve(*theMethod))
fprintf(stderr, "Resolved method.\n");
else
fprintf(stderr, "Could not resolve method!\n");
return 0;
}
#ifdef __GNUC__
/* for gcc with -fhandle-exceptions */
void terminate() {}
#endif