jruby/cext/src/class.cpp at tmpdir-failure · MSNexploder/jruby · GitHub

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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.

* 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 "JUtil.h"

using namespace jruby;

static void class_variable_prefix(char* target, ID source);

static jobject getNotAllocatableAllocator(JNIEnv* env);

static jobject getDefaultAllocator(JNIEnv* env, VALUE parent);

extern "C" VALUE

rb_class_new(VALUE klass)

{

JLocalEnv env;

jobject jklass = env->CallStaticObjectMethod(RubyClass_class, RubyClass_newClass_method,

getRuntime(), valueToObject(env, klass));

checkExceptions(env);

return objectToValue(env, jklass);

}

extern "C" VALUE

rb_class_inherited(VALUE super, VALUE klass)

{

return callMethod(super ? super : rb_cObject, "inherited", 1, klass);

}

extern "C" VALUE

rb_class_new_instance(int argc, VALUE* argv, VALUE klass)

{

return callMethodA(klass, "new", argc, argv);

}

extern "C" VALUE

rb_class_of(VALUE obj)

{

JLocalEnv env;

return (VALUE) env->CallStaticObjectMethod(JRuby_class, JRuby_getMetaClass, valueToObject(env, obj));

}

extern "C" VALUE

rb_class_name(VALUE klass)

{

return callMethodA(klass, "name", 0, NULL);

}

extern "C" char*

rb_class2name(VALUE class_handle)

{

return (char *) RSTRING_PTR(rb_class_name(class_handle));

}

extern "C" VALUE

rb_cvar_defined(VALUE klass, ID name)

{

if (rb_is_instance_id(name)) {

// Class Instance variable

return rb_ivar_defined(klass, name);

}

char target[strlen(rb_id2name(name)) + 3];

class_variable_prefix(target, name);

return callMethod(klass, "class_variable_defined?", 1, rb_str_new_cstr(target));

}

extern "C" VALUE

rb_cvar_get(VALUE klass, ID name)

{

if (rb_is_instance_id(name)) {

// Class Instance variable

return rb_ivar_get(klass, name);

}

char target[strlen(rb_id2name(name)) + 3];

class_variable_prefix(target, name);

return callMethod(klass, "class_variable_get", 1, rb_str_new_cstr(target));

}

#undef rb_cvar_set

extern "C" VALUE

rb_cvar_set(VALUE klass, ID name, VALUE value)

{

if (rb_is_instance_id(name)) {

// Class Instance variable

return rb_ivar_set(klass, name, value);

}

char target[strlen(rb_id2name(name)) + 3];

class_variable_prefix(target, name);

return callMethod(klass, "class_variable_set", 2, rb_str_new_cstr(target), value);

}

extern "C" VALUE

rb_define_class(const char* name, VALUE parent)

{

JLocalEnv env;

VALUE super = parent ? parent : rb_cObject;

jobject result = env->CallObjectMethod(getRuntime(), Ruby_defineClass_method,

env->NewStringUTF(name), valueToObject(env, super), getDefaultAllocator(env, super));

checkExceptions(env);

return objectToValue(env, result);

}

extern "C" VALUE

rb_define_class_under(VALUE module, const char* name, VALUE parent)

{

JLocalEnv env;

VALUE super = parent ? parent : rb_cObject;

jobject result = env->CallObjectMethod(getRuntime(), Ruby_defineClassUnder_method,

env->NewStringUTF(name), valueToObject(env, super), getDefaultAllocator(env, super),

valueToObject(env, module));

checkExceptions(env);

return objectToValue(env, result);

}

extern "C" void

rb_define_alloc_func(VALUE klass, VALUE (*fn)(VALUE))

{

JLocalEnv env;

jobject allocator = env->NewObject(NativeObjectAllocator_class,

getMethodID(env, NativeObjectAllocator_class, "<init>", "(J)V"),

p2j((void *) fn));

checkExceptions(env);

env->CallVoidMethod(valueToObject(env, klass), RubyClass_setAllocator_method, allocator);

}

extern "C" VALUE

rb_path2class(const char* path)

{

JLocalEnv env;

jobject klass = env->CallObjectMethod(getRuntime(), Ruby_getClassFromPath_method, env->NewStringUTF(path));

checkExceptions(env);

return objectToValue(env, klass);

}

extern "C" VALUE

rb_obj_alloc(VALUE klass)

{

JLocalEnv env;

jobject allocator = getDefaultAllocator(env, klass);

jobject instance = env->CallObjectMethod(allocator, ObjectAllocator_allocate_method,

getRuntime(), valueToObject(env, klass));

checkExceptions(env);

return objectToValue(env, instance);

}

extern "C" void

rb_include_module(VALUE self, VALUE module)

{

callMethod(self, "include", 1, module);

}

static void

class_variable_prefix(char* target, ID source)

{

int i = 0;

if (!rb_is_class_id(source)) {

target[i++] = '@';

}

target[i] = '\0';

strcat(target, rb_id2name(source));

}

static jobject

getNotAllocatableAllocator(JNIEnv* env)

{

jobject allocator = env->GetStaticObjectField(ObjectAllocator_class, ObjectAllocator_NotAllocatableAllocator_field);

checkExceptions(env);

return allocator;

}

static jobject

getDefaultAllocator(JNIEnv* env, VALUE parent)

{

jobject allocator = env->CallObjectMethod(valueToObject(env, parent), RubyClass_getAllocator_method);

checkExceptions(env);

return allocator;

}

jruby/cext/src/class.cpp at tmpdir-failure · MSNexploder/jruby · GitHub

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