100 lines
2.6 KiB
C++
100 lines
2.6 KiB
C++
// module for test
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#include <iostream>
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#include "../src/nasal.h"
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namespace nasal_fib_module {
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double fibonaci(double x) {
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if (x<=2) {
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return x;
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}
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return fibonaci(x-1)+fibonaci(x-2);
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}
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var fib(var* args, usize size, gc* ngc) {
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if (!size) {
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return nas_err("fib","lack arguments");
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}
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var num = args[0];
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return var::num(fibonaci(num.tonum()));
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}
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var quick_fib(var* args, usize size, gc* ngc) {
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if (!size) {
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return nas_err("quick_fib","lack arguments");
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}
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double num = args[0].tonum();
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if (num<2) {
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return var::num(num);
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}
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double a = 1, b = 1, res = 0;
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for(double i = 1; i<num; ++i) {
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res = a+b;
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a = b;
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b = res;
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}
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return var::num(res);
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}
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u32 ghost_for_test;
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void ghost_for_test_destructor(void* ptr) {
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std::cout << "ghost_for_test::destructor (0x";
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std::cout << std::hex << (u64)ptr << std::dec << ") {\n";
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delete (u32*)ptr;
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std::cout << " delete 0x" << std::hex << (u64)ptr << std::dec << ";\n";
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std::cout << "}\n";
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}
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var create_new_ghost(var* args, usize size, gc* ngc) {
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var res = ngc->alloc(vm_obj);
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res.obj().set(ghost_for_test, new u32, &ngc->global_ghost_type_table);
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return res;
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}
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var set_new_ghost(var* args, usize size, gc* ngc) {
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var res = args[0];
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if (!res.objchk(ghost_for_test)) {
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std::cout << "set_new_ghost: not ghost for test type.\n";
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return nil;
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}
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f64 num = args[1].num();
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*((u32*)res.obj().ptr) = static_cast<u32>(num);
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std::cout << "set_new_ghost: successfully set ghost = " << num << "\n";
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return nil;
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}
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var print_new_ghost(var* args, usize size, gc* ngc) {
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var res = args[0];
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if (!res.objchk(ghost_for_test)) {
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std::cout << "print_new_ghost: not ghost for test type.\n";
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return nil;
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}
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std::cout << "print_new_ghost: " << res.obj() << " result = "
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<< *((u32*)res.obj().ptr) << "\n";
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return nil;
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}
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module_func_info func_tbl[] = {
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{"fib", fib},
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{"quick_fib", quick_fib},
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{"create_ghost", create_new_ghost},
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{"set_ghost", set_new_ghost},
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{"print_ghost", print_new_ghost},
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{nullptr, nullptr}
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};
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}
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extern "C" module_func_info* get(ghost_register_table* table) {
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if (table->exists("fib_for_test")) {
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nasal_fib_module::ghost_for_test = table->get_ghost_type_index("fib_for_test");
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return nasal_fib_module::func_tbl;
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}
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nasal_fib_module::ghost_for_test = table->register_ghost_type(
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"fib_for_test",
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nasal_fib_module::ghost_for_test_destructor
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);
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return nasal_fib_module::func_tbl;
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} |