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#include "builtin/object.hpp"
#include "builtin/module.hpp"
#include "builtin/symbol.hpp"
#include "builtin/autoload.hpp"
#include "vm/configuration.hpp"
#include "helpers.hpp"
#include "call_frame.hpp"
#include "exception_point.hpp"
#include "on_stack.hpp"
#include "capi/capi.hpp"
#include "capi/18/include/ruby.h"
using namespace rubinius;
using namespace rubinius::capi;
extern "C" {
int rb_const_defined(VALUE module_handle, ID const_id) {
VALUE ret = rb_funcall(module_handle,
rb_intern("const_defined?"), 1, ID2SYM(const_id));
// This version also checks Object. le sigh.
if(!RTEST(ret)) {
ret = rb_funcall(rb_cObject,
rb_intern("const_defined?"), 1, ID2SYM(const_id));
}
return ret;
}
int rb_const_defined_at(VALUE module_handle, ID const_id) {
if(LANGUAGE_18_ENABLED(NativeMethodEnvironment::get()->state())) {
return rb_funcall(module_handle,
rb_intern("const_defined?"), 1, ID2SYM(const_id));
} else {
return rb_funcall(module_handle,
rb_intern("const_defined?"), 2, ID2SYM(const_id), Qfalse);
}
}
ID rb_frame_last_func() {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
CallFrame* rcf = env->current_call_frame()->previous->top_ruby_frame();
return env->get_handle(rcf->name());
}
ID rb_frame_this_func() {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
CallFrame* rcf = env->current_call_frame()->top_ruby_frame();
return env->get_handle(rcf->name());
}
static VALUE const_missing(VALUE klass, ID id) {
return rb_funcall(klass, rb_intern("const_missing"), 1, ID2SYM(id));
}
VALUE rb_const_get_at(VALUE module_handle, ID id_name) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Symbol* name = reinterpret_cast<Symbol*>(id_name);
Module* module = c_as<Module>(env->get_object(module_handle));
bool found = false;
Object* val = module->get_const(env->state(), name, &found);
if(!found) return const_missing(module_handle, id_name);
if(Autoload* autoload = try_as<Autoload>(val)) {
return capi_fast_call(env->get_handle(autoload), rb_intern("call"), 0);
}
return env->get_handle(val);
}
VALUE rb_const_get_from(VALUE module_handle, ID id_name) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Symbol* name = reinterpret_cast<Symbol*>(id_name);
Module* module = c_as<Module>(env->get_object(module_handle));
bool found = false;
while(!module->nil_p()) {
Object* val = module->get_const(env->state(), name, &found);
if(found) {
if(Autoload* autoload = try_as<Autoload>(val)) {
return capi_fast_call(env->get_handle(autoload), rb_intern("call"), 0);
}
return env->get_handle(val);
}
module = module->superclass();
}
return const_missing(module_handle, id_name);
}
VALUE rb_const_get(VALUE module_handle, ID id_name) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Symbol* name = reinterpret_cast<Symbol*>(id_name);
Module* module = c_as<Module>(env->get_object(module_handle));
bool found = false;
while(!module->nil_p()) {
Object* val = module->get_const(env->state(), name, &found);
if(found) {
if(Autoload* autoload = try_as<Autoload>(val)) {
return capi_fast_call(env->get_handle(autoload), rb_intern("call"), 0);
}
return env->get_handle(val);
}
module = module->superclass();
}
// Try from Object as well.
module = env->state()->globals().object.get();
while(!module->nil_p()) {
Object* val = module->get_const(env->state(), name, &found);
if(found) {
if(Autoload* autoload = try_as<Autoload>(val)) {
return capi_fast_call(env->get_handle(autoload), rb_intern("call"), 0);
}
return env->get_handle(val);
}
module = module->superclass();
}
return const_missing(module_handle, id_name);
}
void rb_const_set(VALUE module_handle, ID name, VALUE obj_handle) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Module* module = c_as<Module>(env->get_object(module_handle));
Object* object = env->get_object(obj_handle);
module->set_const(env->state(), reinterpret_cast<Symbol*>(name), object);
}
void rb_define_alias(VALUE module_handle, const char* new_name, const char* old_name) {
ID id_new = rb_intern(new_name);
ID id_old = rb_intern(old_name);
rb_funcall(module_handle, rb_intern("alias_method"), 2, id_new, id_old);
}
void rb_alias(VALUE module_handle, ID id_new, ID id_old) {
rb_funcall(module_handle, rb_intern("alias_method"), 2, id_new, id_old);
}
void rb_define_alloc_func(VALUE class_handle, CApiAllocFunction allocator) {
rb_define_singleton_method(class_handle, "allocate", allocator, 0);
}
void rb_undef_alloc_func(VALUE class_handle) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
rb_undef_method(
env->get_handle(env->get_object(class_handle)->singleton_class(env->state())),
"allocate");
}
void rb_define_attr(VALUE module_handle, const char* attr_name, int readable, int writable) {
if(readable) {
rb_funcall(module_handle, rb_intern("attr_reader"), 1, rb_intern(attr_name));
}
if(writable) {
rb_funcall(module_handle, rb_intern("attr_writer"), 1, rb_intern(attr_name));
}
}
void rb_define_const(VALUE module_handle, const char* name, VALUE obj_handle) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Module* module = c_as<Module>(env->get_object(module_handle));
Object* object = env->get_object(obj_handle);
module->set_const(env->state(), name, object);
}
void rb_define_global_const(const char* name, VALUE obj) {
rb_define_const(rb_cObject, name, obj);
}
void rb_define_global_function(const char* name, CApiGenericFunction func, int argc) {
rb_define_module_function(rb_mKernel, name, func, argc);
}
VALUE rb_define_module(const char* name) {
return rb_define_module_under(rb_cObject, name);
}
void rb_define_module_function(VALUE module_handle, const char* name,
CApiGenericFunction func, int args) {
rb_define_private_method(module_handle, name, func, args);
rb_define_singleton_method(module_handle, name, func, args);
}
/** @note Shares code with rb_define_class_under, change there too. --rue */
VALUE rb_define_module_under(VALUE parent_handle, const char* name) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Module* parent = c_as<Module>(env->get_object(parent_handle));
Symbol* constant = env->state()->symbol(name);
LEAVE_CAPI(env->state());
Module* module = NULL;
// Create a scope so we know that the OnStack variables are popped off
// before we possibly make a longjmp. Making a longjmp doesn't give
// any guarantees about destructors being run
{
GCTokenImpl gct;
OnStack<2> os(env->state(), parent, constant);
module = rubinius::Helpers::open_module(env->state(), gct,
env->current_call_frame(), parent, constant);
}
// The call above could have triggered an Autoload resolve, which may
// raise an exception, so we have to check the value returned.
if(!module) env->current_ep()->return_to(env);
// Grab the module handle before grabbing the lock
// so the Module isn't accidentally GC'ed.
VALUE module_handle = env->get_handle(module);
ENTER_CAPI(env->state());
return module_handle;
}
void rb_include_module(VALUE includer_handle, VALUE includee_handle) {
rb_funcall(includer_handle, rb_intern("include"), 1, includee_handle);
}
void rb_undef_method(VALUE module_handle, const char* name) {
rb_funcall(module_handle, rb_intern("undef_method!"), 1, ID2SYM(rb_intern(name)));
}
void rb_undef(VALUE handle, ID name) {
Symbol* sym = reinterpret_cast<Symbol*>(name);
rb_funcall(handle, rb_intern("undef_method!"), 1, sym);
// In MRI, rb_undef also calls the undef_method hooks, maybe we should?
}
VALUE rb_mod_ancestors(VALUE mod) {
return rb_funcall(mod, rb_intern("ancestors"), 0);
}
VALUE rb_mod_name(VALUE mod) {
return rb_funcall(mod, rb_intern("name"), 0);
}
VALUE rb_module_new(void) {
return rb_funcall(rb_cModule, rb_intern("new"), 0);
}
VALUE rb_mod_remove_const(VALUE mod, VALUE name) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Module* module = c_as<Module>(env->get_object(mod));
module->del_const(env->state(), reinterpret_cast<Symbol*>(name));
return Qnil;
}
const char* rb_class2name(VALUE module_handle) {
NativeMethodEnvironment* env = NativeMethodEnvironment::get();
Module* module_object = c_as<Module>(env->get_object(module_handle));
String* str = module_object->get_name(env->state());
return RSTRING_PTR(env->get_handle(str));
}
}
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