struct expression *convert_args(struct stack *mimic_stack,
unsigned long nr_args,
struct vm_method *method)
{
struct expression *args_list = NULL;
unsigned long i;
if (nr_args == 0) {
args_list = no_args_expr();
goto out;
}
/*
* We scan the args map in reverse order,
* since the order of arguments is already reversed.
*/
for (i = 0; i < nr_args; i++) {
struct expression *expr = stack_pop(mimic_stack);
args_list = insert_arg(args_list, expr,
method, nr_args - i - 1);
}
out:
return args_list;
}
struct expression *
convert_args(struct stack *mimic_stack, unsigned long nr_args, struct vm_method *method)
{
struct expression *args_list = NULL;
unsigned long nr_total_args;
unsigned long i;
nr_total_args = nr_args;
if (vm_method_is_jni(method)) {
if (vm_method_is_static(method))
nr_total_args++;
nr_total_args++;
}
if (nr_total_args == 0) {
args_list = no_args_expr();
goto out;
}
/*
* We scan the args map in reverse order, since the order of arguments
* is already reversed.
*/
for (i = 0; i < nr_args; i++) {
struct expression *expr = stack_pop(mimic_stack);
if (vm_type_is_pair(expr->vm_type))
i++;
if (i >= nr_args)
break;
args_list = insert_arg(args_list, expr, method, nr_total_args - i - 1);
}
if (vm_method_is_jni(method)) {
struct expression *expr;
if (vm_method_is_static(method)) {
expr = value_expr(J_REFERENCE, (unsigned long) method->class->object);
if (!expr)
goto error;
args_list = insert_arg(args_list, expr, method, 1);
}
/*
* JNI methods also need a pointer to JNI environment. That's
* done in jni_trampoline automagically which is why we never
* use method index zero here for JNI methods.
*/
}
out:
return args_list;
error:
expr_put(args_list);
return NULL;
}
/**
* This function prepares argument list that will be used
* with the native VM call. All arguments are passed on stack.
*/
struct expression *
convert_native_args(struct stack *mimic_stack, unsigned long nr_args)
{
struct expression *args_list = NULL;
unsigned long i;
if (nr_args == 0) {
args_list = no_args_expr();
goto out;
}
for (i = 0; i < nr_args; i++) {
struct expression *expr = stack_pop(mimic_stack);
args_list = insert_native_arg(args_list, expr);
}
out:
return args_list;
}
