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c++: Implement subtree_index(...)

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Tobias Hunger 2022-03-31 13:34:19 +02:00 • committed by Tobias Hunger
parent 0ca23948fb
commit e05d24b2cf
1 changed files with 20 additions and 2 deletions
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22
internal/compiler/generator/cpp.rs
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@ -966,13 +966,15 @@ fn generate_item_tree(
}),
));
// Statements will be overridden for repeated components!
target_struct.members.push((
Access::Private,
Declaration::Function(Function {
name: "subtree_index".into(),
signature: "(slint::private_api::ComponentRef /* component */) -> uintptr_t".into(),
signature: "([[maybe_unused]] slint::private_api::ComponentRef component) -> uintptr_t"
.into(),
is_static: true,
statements: Some(vec!["/* unimplemented! */".to_owned(), "return 0;".into()]),
statements: Some(vec![format!("return {};", std::usize::MAX)]),
..Default::default()
}),
));
@ -1584,6 +1586,22 @@ fn generate_repeated_component(
));
}
if let Some(index_prop) = repeated.index_prop {
// Override default subtree_index function implementation
let subtree_index_func = repeater_struct.members.iter_mut().find(|(_, d)| match d {
Declaration::Function(f) if f.name == "subtree_index" => true,
_ => false,
});
if let Declaration::Function(f) = &mut subtree_index_func.unwrap().1 {
let index = access_prop(&index_prop);
f.statements = Some(vec![
"[[maybe_unused]] auto self = this;".into(),
format!("return {}.get();", index),
]);
}
}
file.definitions.extend(repeater_struct.extract_definitions().collect::<Vec<_>>());
file.declarations.push(Declaration::Struct(repeater_struct));
}