Struct LuaRefs 

pub struct LuaRefs {
    pub next: i32,
    pub free: Vec<i32>,
    pub copies: Vec<(i32, i32)>,
}

The numbers LuaTeX gives the Lua values it keeps by reference (shown as <lua data reference N>), modelled as observed: a new reference takes the most recently released number, else the next one; freeing or overwriting a node’s value releases its number, copying the node takes a new one. Fonts made from Lua tables and luaotfload’s set-up hold references too.

Fields

next: i32

The next number never used (780 at the start of a plain run).

free: Vec<i32>

The released numbers, the last released last.

copies: Vec<(i32, i32)>

References made by copying nodes: (copy, original), for the Lua side to duplicate the value.

Implementations

impl LuaRefs

pub fn take(&mut self) -> i32

A new reference number.

pub fn release(&mut self, r: i32)

Releases reference r (none if it is not positive).

pub fn font_defined(&mut self, temporary: bool)

The references held by a font that luaotfload defines: one while it is made, released after, and one kept (observed).

Trait Implementations

impl Clone for LuaRefs

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LuaRefs

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

Formats the value using the given formatter.

impl Default for LuaRefs

fn default() -> Self

Returns the “default value” for a type.