Struct sixtyfps_compilerlib::object_tree::Element

pub struct Element {

    pub id: String,
    pub base_type: Type,
    pub bindings: HashMap<String, BindingExpression>,
    pub children: Vec<ElementRc>,
    pub enclosing_component: Weak<Component>,
    pub property_declarations: HashMap<String, PropertyDeclaration>,
    pub named_references: NamedReferenceContainer,
    pub property_animations: HashMap<String, PropertyAnimation>,
    pub repeated: Option<RepeatedElementInfo>,
    pub states: Vec<State>,
    pub transitions: Vec<Transition>,
    pub child_of_layout: bool,
    pub is_flickable_viewport: bool,
    pub item_index: OnceCell<usize>,
    pub node: Option<Element>,
}

An Element is an instentation of a Component

Fields

id: String

The id as named in the original .60 file.

Note that it can only be used for lookup before inlining. After inlining there can be duplicated id in the component. The id are then re-assigned unique id in the assign_id pass

base_type: Type

bindings: HashMap<String, BindingExpression>

Currently contains also the callbacks. FIXME: should that be changed?

children: Vec<ElementRc>

enclosing_component: Weak<Component>

The component which contains this element.

property_declarations: HashMap<String, PropertyDeclaration>

named_references: NamedReferenceContainer

Main owner for a reference to a property.

property_animations: HashMap<String, PropertyAnimation>

repeated: Option<RepeatedElementInfo>

Tis element is part of a `for in :

states: Vec<State>

transitions: Vec<Transition>

child_of_layout: bool

true when this item’s geometry is handled by a layout

is_flickable_viewport: bool

true if this Element is the fake Flickable viewport

item_index: OnceCell<usize>

This is the component-local index of this item in the item tree array. It is generated after the last pass and before the generators run.

node: Option<Element>

The AST node, if available

Implementations

impl Element

pub fn from_node(
    node: Element,
    id: String,
    parent_type: Type,
    component_child_insertion_point: &mut Option<(ElementRc, ChildrenPlaceholder)>,
    diag: &mut BuildDiagnostics,
    tr: &TypeRegister
) -> ElementRc

pub fn lookup_property<'a>(&self, name: &'a str) -> PropertyLookupResult<'a>

Return the type of a property in this element or its base, along with the final name, in case the provided name points towards a property alias. Type::Invalid is returned if the property does not exist.

pub fn span(&self) -> Span

Return the Span of this element in the AST for error reporting

pub fn native_class(&self) -> Option<Rc<NativeClass>>

pub fn builtin_type(&self) -> Option<Rc<BuiltinElement>>

Trait Implementations

impl Debug for Element

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Element

fn default() -> Element

Returns the “default value” for a type.

impl Spanned for Element

fn span(&self) -> Span

fn source_file(&self) -> Option<&SourceFile>

fn to_source_location(&self) -> SourceLocation