C++ (Cpp) zend_fcall_info_init Examples

Example #1

File: zend_closures.c Project: asmlib/php-7.0.7

/* {{{ proto mixed Closure::call(object to [, mixed parameter] [, mixed ...] )
   Call closure, binding to a given object with its class as the scope */
ZEND_METHOD(Closure, call)
{
	zval *zclosure, *newthis, closure_result;
	zend_closure *closure;
	zend_fcall_info fci;
	zend_fcall_info_cache fci_cache;
	zval *my_params;
	int my_param_count = 0;
	zend_function my_function;
	zend_object *newobj;

	if (zend_parse_parameters(ZEND_NUM_ARGS(), "o*", &newthis, &my_params, &my_param_count) == FAILURE) {
		return;
	}

	zclosure = getThis();
	closure = (zend_closure *) Z_OBJ_P(zclosure);

	newobj = Z_OBJ_P(newthis);

	if (!zend_valid_closure_binding(closure, newthis, Z_OBJCE_P(newthis))) {
		return;
	}

	/* This should never happen as closures will always be callable */
	if (zend_fcall_info_init(zclosure, 0, &fci, &fci_cache, NULL, NULL) != SUCCESS) {
		ZEND_ASSERT(0);
	}

	fci.retval = &closure_result;
	fci.params = my_params;
	fci.param_count = my_param_count;
	fci.object = fci_cache.object = newobj;
	fci_cache.initialized = 1;
	fci_cache.called_scope = Z_OBJCE_P(newthis);

	if (fci_cache.function_handler->common.fn_flags & ZEND_ACC_GENERATOR) {
		zval new_closure;
		zend_create_closure(&new_closure, fci_cache.function_handler, Z_OBJCE_P(newthis), closure->called_scope, newthis);
		closure = (zend_closure *) Z_OBJ(new_closure);
		fci_cache.function_handler = &closure->func;
	} else {
		memcpy(&my_function, fci_cache.function_handler, fci_cache.function_handler->type == ZEND_USER_FUNCTION ? sizeof(zend_op_array) : sizeof(zend_internal_function));
		/* use scope of passed object */
		my_function.common.scope = Z_OBJCE_P(newthis);
		fci_cache.function_handler = &my_function;

		/* Runtime cache relies on bound scope to be immutable, hence we need a separate rt cache in case scope changed */
		if (ZEND_USER_CODE(my_function.type) && closure->func.common.scope != Z_OBJCE_P(newthis)) {
			my_function.op_array.run_time_cache = emalloc(my_function.op_array.cache_size);
			memset(my_function.op_array.run_time_cache, 0, my_function.op_array.cache_size);
		}
	}

	if (zend_call_function(&fci, &fci_cache) == SUCCESS && Z_TYPE(closure_result) != IS_UNDEF) {
		ZVAL_COPY_VALUE(return_value, &closure_result);
	}

	if (fci_cache.function_handler->common.fn_flags & ZEND_ACC_GENERATOR) {
		/* copied upon generator creation */
		--GC_REFCOUNT(&closure->std);
	} else if (ZEND_USER_CODE(my_function.type) && closure->func.common.scope != Z_OBJCE_P(newthis)) {
		efree(my_function.op_array.run_time_cache);
	}
}

Example #2

File: zend_closures.c Project: ralt/php-src

/* {{{ proto mixed Closure::call(object to [, mixed parameter] [, mixed ...] )
   Call closure, binding to a given object with its class as the scope */
ZEND_METHOD(Closure, call)
{
	zval *zclosure, *newthis, closure_result;
	zend_closure *closure;
	zend_fcall_info fci;
	zend_fcall_info_cache fci_cache;
	zval *my_params;
	int my_param_count = 0;
	zend_function my_function;
	zend_object *newobj;

	if (zend_parse_parameters(ZEND_NUM_ARGS(), "o*", &newthis, &my_params, &my_param_count) == FAILURE) {
		return;
	}

	zclosure = getThis();
	closure = (zend_closure *)Z_OBJ_P(zclosure);

	if (closure->func.common.fn_flags & ZEND_ACC_STATIC) {
		zend_error(E_WARNING, "Cannot bind an instance to a static closure");
		return;
	}

	if (closure->func.type == ZEND_INTERNAL_FUNCTION) {
		/* verify that we aren't binding internal function to a wrong object */
		if ((closure->func.common.fn_flags & ZEND_ACC_STATIC) == 0 &&
				!instanceof_function(Z_OBJCE_P(newthis), closure->func.common.scope)) {
			zend_error(E_WARNING, "Cannot bind function %s::%s to object of class %s", ZSTR_VAL(closure->func.common.scope->name), ZSTR_VAL(closure->func.common.function_name), ZSTR_VAL(Z_OBJCE_P(newthis)->name));
			return;
		}
	}

	newobj = Z_OBJ_P(newthis);

	if (newobj->ce != closure->func.common.scope && newobj->ce->type == ZEND_INTERNAL_CLASS) {
		/* rebinding to internal class is not allowed */
		zend_error(E_WARNING, "Cannot bind closure to object of internal class %s", ZSTR_VAL(newobj->ce->name));
		return;
	}

	/* This should never happen as closures will always be callable */
	if (zend_fcall_info_init(zclosure, 0, &fci, &fci_cache, NULL, NULL) != SUCCESS) {
		ZEND_ASSERT(0);
	}

	fci.retval = &closure_result;
	fci.params = my_params;
	fci.param_count = my_param_count;
	fci.object = fci_cache.object = newobj;
	fci_cache.initialized = 1;

	my_function = *fci_cache.function_handler;
	/* use scope of passed object */
	my_function.common.scope = Z_OBJCE_P(newthis);
	fci_cache.function_handler = &my_function;

	/* Runtime cache relies on bound scope to be immutable, hence we need a separate rt cache in case scope changed */
	if (ZEND_USER_CODE(my_function.type) && closure->func.common.scope != Z_OBJCE_P(newthis)) {
		my_function.op_array.run_time_cache = emalloc(my_function.op_array.cache_size);
		memset(my_function.op_array.run_time_cache, 0, my_function.op_array.cache_size);
	}

	if (zend_call_function(&fci, &fci_cache) == SUCCESS && Z_TYPE(closure_result) != IS_UNDEF) {
		ZVAL_COPY_VALUE(return_value, &closure_result);
	}

	if (ZEND_USER_CODE(my_function.type) && closure->func.common.scope != Z_OBJCE_P(newthis)) {
		efree(my_function.op_array.run_time_cache);
	}
}