/* This is the execute implementation used by normal Ruby code,
* as opposed to Primitives or FFI functions.
* It prepares a Ruby method for execution.
* Here, +exec+ is a VMMethod instance accessed via the +vmm+ slot on
* CompiledMethod.
*/
ExecuteStatus VMMethod::execute(STATE, Task* task, Message& msg) {
CompiledMethod* cm = as<CompiledMethod>(msg.method);
MethodContext* ctx = MethodContext::create(state, msg.recv, cm);
VMMethod* vmm = cm->backend_method_;
// Copy in things we all need.
ctx->module(state, msg.module);
ctx->name(state, msg.name);
ctx->block(state, msg.block);
ctx->args = msg.args();
// If argument handling fails..
GenericArguments args;
if(args.call(state, vmm, ctx, msg) == false) {
// Clear the values from the caller
task->active()->clear_stack(msg.stack);
// TODO we've got full control here, we should just raise the exception
// in the runtime here rather than throwing a C++ exception and raising
// it later.
Exception::argument_error(state, vmm->required_args, msg.args());
// never reached!
}
#if 0
if(!probe_->nil_p()) {
probe_->start_method(this, msg);
}
#endif
// Clear the values from the caller
task->active()->clear_stack(msg.stack);
task->make_active(ctx);
if(unlikely(task->profiler)) {
profiler::Method* prof_meth;
if(MetaClass* mc = try_as<MetaClass>(msg.module)) {
Object* attached = mc->attached_instance();
if(Module* mod = try_as<Module>(attached)) {
prof_meth = task->profiler->enter_method(msg.name, mod->name(), profiler::kNormal);
} else {
prof_meth = task->profiler->enter_method(msg.name, attached->id(state), profiler::kNormal);
}
} else {
prof_meth = task->profiler->enter_method(msg.name, msg.module->name(), profiler::kSingleton);
}
if(!prof_meth->file()) {
prof_meth->set_position(cm->file(), cm->start_line(state));
}
}
return cExecuteRestart;
}
