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ladybird/Userland/Libraries/LibMain/Main.h

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LibMain: Add a new library for more ergonomic userspace entry functions By linking with LibMain, your program no longer needs to provide main(). Instead, execution begins in this function: ErrorOr<int> serenity_main(Main::Arguments); This allows programs that link with LibMain to use TRY() already in their entry function, without having to do manual ErrorOr unwrapping. This is very experimental, but it seems like a nice idea so let's try it out. :^)
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/*
* Copyright (c) 2021, Andreas Kling <kling@serenityos.org>
LibMain: Update header includes
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* Copyright (c) 2022, the SerenityOS developers.
LibMain: Add a new library for more ergonomic userspace entry functions By linking with LibMain, your program no longer needs to provide main(). Instead, execution begins in this function: ErrorOr<int> serenity_main(Main::Arguments); This allows programs that link with LibMain to use TRY() already in their entry function, without having to do manual ErrorOr unwrapping. This is very experimental, but it seems like a nice idea so let's try it out. :^)
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*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/Error.h>
LibMain: Update header includes
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#include <AK/Span.h>
#include <AK/StringView.h>
LibMain: Add a new library for more ergonomic userspace entry functions By linking with LibMain, your program no longer needs to provide main(). Instead, execution begins in this function: ErrorOr<int> serenity_main(Main::Arguments); This allows programs that link with LibMain to use TRY() already in their entry function, without having to do manual ErrorOr unwrapping. This is very experimental, but it seems like a nice idea so let's try it out. :^)
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namespace Main {
struct Arguments {
int argc {};
char** argv {};
LibMain: Rename .arguments to .strings :^) Before this change, we would need to write arguments.arguments to access the Span<>, which doesn't feel too pretty.
2021-11-22 21:10:22 +00:00
Span<StringView> strings;
LibMain: Add a new library for more ergonomic userspace entry functions By linking with LibMain, your program no longer needs to provide main(). Instead, execution begins in this function: ErrorOr<int> serenity_main(Main::Arguments); This allows programs that link with LibMain to use TRY() already in their entry function, without having to do manual ErrorOr unwrapping. This is very experimental, but it seems like a nice idea so let's try it out. :^)
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};
LibMain: Add the ability to configure the exit code on error Some POSIX utilities are specified to return a specific value on error, which is not 1. `Main::set_return_code_for_errors()` lets you set it to that value.
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int return_code_for_errors();
void set_return_code_for_errors(int);
LibMain: Add a new library for more ergonomic userspace entry functions By linking with LibMain, your program no longer needs to provide main(). Instead, execution begins in this function: ErrorOr<int> serenity_main(Main::Arguments); This allows programs that link with LibMain to use TRY() already in their entry function, without having to do manual ErrorOr unwrapping. This is very experimental, but it seems like a nice idea so let's try it out. :^)
2021-11-22 15:44:54 +01:00
}
ErrorOr<int> serenity_main(Main::Arguments);
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