Struct TopSubtreeBuilder 

pub struct TopSubtreeBuilder {
    unclosed_subtree_indices: Vec<usize>,
    token_trees: TopSubtreeBuilderRepr,
    span_parts: IndexSet<CompressedSpanPart, FxBuildHasher>,
    last_closed_subtree: Option<usize>,
    top_subtree_spans: DelimSpan,
}

Fields

unclosed_subtree_indices: Vec<usize>

token_trees: TopSubtreeBuilderRepr

span_parts: IndexSet<CompressedSpanPart, FxBuildHasher>

last_closed_subtree: Option<usize>

top_subtree_spans: DelimSpan

We need to keep those because they are not inside span_parts, see RESERVED_SPAN_PARTS_LEN.

Implementations

impl TopSubtreeBuilder

pub fn new(top_delimiter: Delimiter) -> Self

fn span_part_index(&mut self, part: CompressedSpanPart) -> usize

fn switch_repr<T: SpanStorage, U: From<T>>( repr: &mut Vec<TokenTree<T>>, ) -> Vec<TokenTree<U>>

fn ensure_can_hold(&mut self, text_range: TextRange, span_parts_index: usize)

Ensures we have a representation that can hold these values.

fn push_subtree(&mut self, subtree: Subtree)

Not to be exposed, this assumes the subtree’s children will be filled in immediately.

pub fn open(&mut self, delimiter_kind: DelimiterKind, open_span: Span)

pub fn close(&mut self, close_span: Span)

pub fn remove_last_subtree_if_invisible(&mut self)

You cannot call this consecutively, it will only work once after close.

fn push_literal(&mut self, leaf: Literal)

fn push_punct(&mut self, leaf: Punct)

fn push_ident(&mut self, leaf: Ident)

pub fn push(&mut self, leaf: Leaf)

fn push_token_tree(&mut self, tt: TokenTree)

pub fn extend(&mut self, leaves: impl IntoIterator<Item = Leaf>)

pub fn extend_with_tt(&mut self, tt: TokenTreesView<'_>)

pub fn extend_with_tt_alone(&mut self, tt: TokenTreesView<'_>)

Like Self::extend_with_tt(), but makes sure the new tokens will never be joint with whatever comes after them.

pub fn expected_delimiters(&self) -> impl Iterator<Item = DelimiterKind>

pub fn build_skip_top_subtree(self) -> TopSubtree

Builds, and remove the top subtree if it has only one subtree child.

pub fn build(self) -> TopSubtree

pub fn restore_point(&self) -> SubtreeBuilderRestorePoint

pub fn restore(&mut self, restore_point: SubtreeBuilderRestorePoint)

Trait Implementations

impl Clone for TopSubtreeBuilder

fn clone(&self) -> TopSubtreeBuilder

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for TopSubtreeBuilder

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

Formats the value using the given formatter.