Function resolve_template_param_mixins

src/virtual_members/phpdoc.rs:810–873

Resolve `@mixin` tags that name a template parameter, using concrete generic arguments provided at a call site. During [`PHPDocProvider::provide`], mixin names that are template parameters (e.g. `@mixin TWraps`) cannot be resolved because the concrete type arguments are not yet known — they are applied later by [`apply_generic_args`](crate::inheritance::apply_generic_args). This function fills th

(
    original_class: &ClassInfo,
    template_subs: &HashMap<String, PhpType>,
    class_loader: &dyn Fn(&str) -> Option<Arc<ClassInfo>>,
)

/// merged into the substituted class via
/// [`merge_virtual_members`](super::merge_virtual_members).
pub fn resolve_template_param_mixins(
    original_class: &ClassInfo,
    template_subs: &HashMap<String, PhpType>,
    class_loader: &dyn Fn(&str) -> Option<Arc<ClassInfo>>,
) -> super::VirtualMembers {
    if template_subs.is_empty() || original_class.mixins.is_empty() {
        return super::VirtualMembers {
            methods: Vec::new(),
            properties: Vec::new(),
            constants: Vec::new(),
        };
    }

    // Only process mixins whose name is a template parameter — the
    // rest were already resolved during `PHPDocProvider::provide`.
    let template_mixins: Vec<Atom> = original_class
        .mixins
        .iter()
        .filter(|m| {
            original_class
                .template_params
                .iter()
                .any(|t| t.as_str() == m.as_str())
        })
        .copied()
        .collect();

    if template_mixins.is_empty() {
        return super::VirtualMembers {
            methods: Vec::new(),
            properties: Vec::new(),
            constants: Vec::new(),
        };
    }

    let dedup = MixinDedup {
        methods: HashSet::new(),
        properties: HashSet::new(),
        constants: HashSet::new(),
    };

    let mut collector = MixinCollector {
        methods: Vec::new(),
        properties: Vec::new(),
        constants: Vec::new(),
        dedup,
    };

    collect_mixin_members(
        &template_mixins,
        &original_class.mixin_generics,
        class_loader,
        &mut collector,
        template_subs,
        0,
        None,
    );