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Documentation: Replace TRY()
example in Patterns.md
The `Menubar::add_menu()` call used in the previous code snippet no longer returns `ErrorOr`, which defeats the purpose of the example.
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sideshowbarker
2024-07-18 01:43:16 +09:00
Author: https://github.com/tcl3 Commit: https://github.com/SerenityOS/serenity/commit/d054116012 Pull-request: https://github.com/SerenityOS/serenity/pull/21262 Reviewed-by: https://github.com/AtkinsSJ ✅
@ -18,21 +18,24 @@ result of the contents of the TRY will be the result of the macro's execution.
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### Examples:
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Example from LibGUI:
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Example from LibGfx:
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```cpp
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#include <AK/Try.h>
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... snip ...
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ErrorOr<NonnullRefPtr<Menu>> Window::try_add_menu(String name)
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ErrorOr<NonnullRefPtr<Bitmap>> Bitmap::create_shareable(BitmapFormat format, IntSize size, int scale_factor)
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{
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auto menu = m_menubar->add_menu({}, move(name));
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if (m_window_id) {
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menu->realize_menu_if_needed();
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ConnectionToWindowServer::the().async_add_menu(m_window_id, menu->menu_id());
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}
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return menu;
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if (size_would_overflow(format, size, scale_factor))
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return Error::from_string_literal("Gfx::Bitmap::create_shareable size overflow");
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auto const pitch = minimum_pitch(size.width() * scale_factor, format);
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auto const data_size = size_in_bytes(pitch, size.height() * scale_factor);
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auto buffer = TRY(Core::AnonymousBuffer::create_with_size(round_up_to_power_of_two(data_size, PAGE_SIZE)));
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auto bitmap = TRY(Bitmap::create_with_anonymous_buffer(format, buffer, size, scale_factor, {}));
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return bitmap;
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}
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```
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