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/***** BEGIN LICENSE BLOCK *****
* Version: CPL 1.0/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Common Public
* License Version 1.0 (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.eclipse.org/legal/cpl-v10.html
*
* 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.
*
* Copyright (C) 2010 Wayne Meissner
* Copyright (C) 1993-2007 Yukihiro Matsumoto
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the CPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the CPL, the GPL or the LGPL.
***** END LICENSE BLOCK *****/
#include "jruby.h"
#include "ruby.h"
#include "JLocalEnv.h"
#include "JavaException.h"
using namespace jruby;
extern "C" VALUE
rb_exc_new(VALUE etype, const char *ptr, long len)
{
return rb_exc_new3(etype, rb_str_new(ptr, len));
}
#undef rb_exc_new2
extern "C" VALUE
rb_exc_new2(VALUE etype, const char *s)
{
return rb_exc_new(etype, s, strlen(s));
}
extern "C" VALUE
rb_exc_new3(VALUE etype, VALUE str)
{
StringValue(str);
return callMethod(etype, "new", 1, str);
}
extern "C" void
rb_exc_raise(VALUE exc)
{
using namespace jruby;
JLocalEnv env;
jmethodID ctor = getCachedMethodID(env, RaiseException_class, "<init>", "(Lorg/jruby/RubyException;)V");
jthrowable jException = (jthrowable) env->NewObject(RaiseException_class, ctor, valueToObject(env, exc));
checkExceptions(env);
throw JavaException(env, jException);
}
extern "C" VALUE
rb_ensure(VALUE (*b_proc)(ANYARGS), VALUE data1, VALUE (*e_proc)(ANYARGS), VALUE data2)
{
bool b_returned = false;
VALUE result;
try {
result = (*b_proc)(data1);
b_returned = true;
(*e_proc)(data2);
return result;
} catch (jruby::JavaException& ex) {
if (!b_returned) {
(*e_proc)(data2);
}
throw;
}
}
extern "C" VALUE
rb_rescue(VALUE (*b_proc)(ANYARGS), VALUE data1, VALUE (*r_proc)(ANYARGS), VALUE data2)
{
try {
return (*b_proc)(data1);
} catch (jruby::JavaException& ex) {
JLocalEnv env;
jthrowable t = ex.getCause(env);
if (!env->IsInstanceOf(t, RaiseException_class)) {
// Not a ruby exception, just propagate
throw;
}
jobject rubyException = env->GetObjectField(t, RaiseException_exception_field);
checkExceptions(env);
VALUE exc = objectToValue(env, rubyException);
if (rb_obj_is_kind_of(exc, rb_eStandardError)) {
VALUE result = (*r_proc)(data2);
env->CallStaticVoidMethod(JRuby_class, JRuby_clearErrorInfo, jruby::getRuntime());
return result;
}
rb_raise(rb_eTypeError, "wrong exception type raised (expected StandardError subclass)");
return Qnil;
}
}
extern "C" VALUE
rb_rescue2(VALUE (*b_proc)(ANYARGS), VALUE data1, VALUE (*r_proc)(ANYARGS), VALUE data2, ...)
{
try {
return (*b_proc)(data1);
} catch (jruby::JavaException& ex) {
JLocalEnv env;
jthrowable t = ex.getCause(env);
if (!env->IsInstanceOf(t, RaiseException_class)) {
// Not a ruby exception, just propagate
throw;
}
jobject rubyException = env->GetObjectField(t, RaiseException_exception_field);
checkExceptions(env);
VALUE exc = objectToValue(env, rubyException);
va_list ap;
va_start(ap, data2);
VALUE eclass = 0;
bool handle = false;
while ((eclass = va_arg(ap, VALUE)) != 0) {
if (rb_obj_is_kind_of(exc, eclass)) {
handle = true;
break;
}
}
va_end(ap);
if (handle) {
VALUE result = (*r_proc)(data2);
env->CallStaticVoidMethod(JRuby_class, JRuby_clearErrorInfo, jruby::getRuntime());
return result;
}
rb_raise(rb_eTypeError, "wrong exception type raised");
return Qnil;
}
}
extern "C" VALUE
rb_protect(VALUE (*func)(VALUE), VALUE data, int* status)
{
bool returned = false;
VALUE result;
try {
result = (*func)(data);
returned = true;
*status = 0;
return result;
} catch (jruby::JavaException& ex) {
*status = 1;
return Qnil;
}
}
extern "C" void
rb_jump_tag(int status) {
if (status) {
// TODO: Check if there is an exception here?
rb_exc_raise(rb_gv_get("$!"));
}
}
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