Enum FoldMethod 

pub enum FoldMethod {
    Manual,
    Indent,
    Markdown,
    Syntax,
    Lsp,
}

:set foldmethod=... (DESIGN.md §15:18, C.2; docs/user/folding.md). Decides which provider feeds the per-buffer fold list.

Each variant’s marginalia doc (right of =>) is what appears in :set foldmethod=<Tab>. Variant-level /// docs are for API/rustdoc consumers. Slice 3c.unify.option-docs-builtin migrated this enum to labeled_enum! — adding a new fold method is now one line; the label / parse_label / doc / all accessors are derived automatically.

D.3.f.0 added #[derive(Hash)] so the FoldRegistry can key its primary-provider map on FoldMethod.

Variants

Manual

Only user zf ranges, no auto-recompute.

Indent

Universal indent walker.

Markdown

ATX heading nesting (*.md).

Syntax

Tree-sitter scope queries; cascades to Markdown for .md buffers and Indent otherwise when the tree- sitter provider has nothing to offer.

Lsp

Feeds from textDocument/foldingRange. Async: the per-tick pump fires the request when the buffer’s document version changes; the response lands in a per-buffer cache and triggers a recompute. Cascades to Syntax when no attached server advertises the capability.

Slice: 4.4.f.

Implementations

impl FoldMethod

pub fn label(self) -> &'static str

Canonical string label.

pub fn doc(self) -> &'static str

Short marginalia doc shown in cmdline-completion’s right-aligned column.

pub fn all() -> &'static [Self]

Variants in declaration order.

pub fn parse_label(s: &str) -> Result<Self, String>

Parse from canonical label or any registered alias.

Trait Implementations

impl Clone for FoldMethod

fn clone(&self) -> FoldMethod

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FoldMethod

impl Debug for FoldMethod

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

Formats the value using the given formatter.

impl Default for FoldMethod

fn default() -> FoldMethod

Returns the “default value” for a type.

impl Eq for FoldMethod

impl Hash for FoldMethod

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for FoldMethod

fn eq(&self, other: &FoldMethod) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for FoldMethod