blob: a972a65b24d728e58957c959d0fa477f0371b3ed (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
// This source code is released into the public domain.
module nihil.cli;
import nihil.std;
namespace nihil {
// Get the registry storage. Because this is called from global ctors,
// it handles exceptions itself.
auto get_registry() noexcept -> std::vector<std::shared_ptr<command>> &
try {
static auto commands = std::vector<std::shared_ptr<command>>();
return commands;
} catch (std::exception const &exc) {
std::println(std::cerr, "{}", exc.what());
std::exit(1); // NOLINT
} catch (...) {
std::println(std::cerr, "get_registered_commands(): unknown error\n");
std::exit(1); // NOLINT
}
// Register a new command.
auto register_command(command *cmd) noexcept -> void
try {
auto null_deleter = [] (command const *) -> void {};
auto &commands = get_registry();
commands.emplace_back(cmd, null_deleter);
} catch (std::exception const &exc) {
std::println(std::cerr, "{}", exc.what());
std::exit(1); // NOLINT
} catch (...) {
std::println(std::cerr, "get_registered_commands(): unknown error\n");
std::exit(1); // NOLINT
}
// Get the list of registered commands.
auto get_registered_commands() -> std::span<std::shared_ptr<command>>
{
return {get_registry()};
}
} // namespace nihil
|
