Skip to main content

ViewDef

Struct ViewDef 

Source
pub struct ViewDef<'a> {
    pub component: Option<Symbol>,
    pub root: ViewRoot<'a>,
    pub nodes: Vec<ViewNode<'a>>,
    pub mentions: Vec<(Symbol, Span)>,
    pub span: Span,
}
Expand description

One complete view: a Render: block, a Render into <el>: block, or a component’s View: — in source order they appear in crate::parser::Parser::views.

Fields§

§component: Option<Symbol>

The component this view belongs to (None for a bare Render:).

§root: ViewRoot<'a>

Where the tree renders.

§nodes: Vec<ViewNode<'a>>§mentions: Vec<(Symbol, Span)>

Every identifier the template MENTIONS, with its span in the FILE.

★ THE ONE THING A TOKEN WALK CANNOT RECOVER. A View: body reaches the parser as a single RawBlock token, so a name used only in a template is not in the token stream at all — which is why an editor could not jump from {count} to the Let count be 0. it names, the most common movement there is in an LGX file. The positions are known HERE and only here: TExpr carries its offset in the template body, and the parser holds the map from body offsets to file offsets. Recorded on the way past rather than re-derived, because a second copy of that arithmetic is a second thing to get wrong.

§span: Span

Implementations§

Source§

impl<'a> ViewDef<'a>

Source

pub fn exprs_and_blocks(&self) -> (Vec<&'a Expr<'a>>, Vec<&'a [Stmt<'a>]>)

Every expression and every statement block the tree references (holes, attribute values, conditions, iterables, keys, handler bodies) — the traversal surface for depth bounds, scope analysis and tooling walks.

Source

pub fn shape(&self, interner: &Interner) -> String

A compact, deterministic one-line rendering of the tree — the snapshot surface view_ir_lock pins and largo expand prints.

Source

pub fn body_shape(&self, interner: &Interner) -> String

Just the node tree, without the view of <Name> head — what a component’s own shape embeds.

Trait Implementations§

Source§

impl<'a> Clone for ViewDef<'a>

Source§

fn clone(&self) -> ViewDef<'a>

Returns a duplicate of the value. Read more
1.0.0 · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
Source§

impl<'a> Debug for ViewDef<'a>

Source§

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

§

impl<'a> Freeze for ViewDef<'a>

§

impl<'a> RefUnwindSafe for ViewDef<'a>

§

impl<'a> Send for ViewDef<'a>

§

impl<'a> Sync for ViewDef<'a>

§

impl<'a> Unpin for ViewDef<'a>

§

impl<'a> UnsafeUnpin for ViewDef<'a>

§

impl<'a> UnwindSafe for ViewDef<'a>

Blanket Implementations§

Source§

impl<T> Any for T
where T: 'static + ?Sized,

Source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
Source§

impl<T> Borrow<T> for T
where T: ?Sized,

Source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
Source§

impl<T> BorrowMut<T> for T
where T: ?Sized,

Source§

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
Source§

impl<T> CloneToUninit for T
where T: Clone,

Source§

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
§

impl<T> Downcast for T
where T: Any,

§

fn into_any(self: Box<T>) -> Box<dyn Any>

Convert Box<dyn Trait> (where Trait: Downcast) to Box<dyn Any>. Box<dyn Any> can then be further downcast into Box<ConcreteType> where ConcreteType implements Trait.
§

fn into_any_rc(self: Rc<T>) -> Rc<dyn Any>

Convert Rc<Trait> (where Trait: Downcast) to Rc<Any>. Rc<Any> can then be further downcast into Rc<ConcreteType> where ConcreteType implements Trait.
§

fn as_any(&self) -> &(dyn Any + 'static)

Convert &Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &Any’s vtable from &Trait’s.
§

fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)

Convert &mut Trait (where Trait: Downcast) to &Any. This is needed since Rust cannot generate &mut Any’s vtable from &mut Trait’s.
§

impl<T> DowncastSync for T
where T: Any + Send + Sync,

§

fn into_any_arc(self: Arc<T>) -> Arc<dyn Any + Send + Sync>

Convert Arc<Trait> (where Trait: Downcast) to Arc<Any>. Arc<Any> can then be further downcast into Arc<ConcreteType> where ConcreteType implements Trait.
Source§

impl<T> From<T> for T

Source§

fn from(t: T) -> T

Returns the argument unchanged.

Source§

impl<T, U> Into<U> for T
where U: From<T>,

Source§

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

Source§

impl<T> Same for T

Source§

type Output = T

Should always be Self
Source§

impl<T> ToOwned for T
where T: Clone,

Source§

type Owned = T

The resulting type after obtaining ownership.
Source§

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
Source§

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
Source§

impl<T, U> TryFrom<U> for T
where U: Into<T>,

Source§

type Error = Infallible

The type returned in the event of a conversion error.
Source§

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
Source§

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

Source§

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
Source§

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
§

impl<V, T> VZip<V> for T
where V: MultiLane<T>,

§

fn vzip(self) -> V

§

impl<ST, DT> CastableFrom<ST, Initialized, Initialized> for DT
where ST: ?Sized, DT: ?Sized,

§

impl<ST, DT> CastableFrom<ST, Uninit, Uninit> for DT
where ST: ?Sized, DT: ?Sized,

§

impl<T> Read<Exclusive, BecauseExclusive> for T
where T: ?Sized,