Struct Keywords 

pub struct Keywords { /* private fields */ }

The keywords of one dialect, ready to be looked up by symbol.

Built once per compilation, against the interner that compilation will use, before any source has been read.

Implementations

impl Keywords

pub fn new(interner: &mut Interner, std: Std, gnu: bool) -> Keywords

Interns every keyword spelling and resolves which of them this dialect has.

Panics

Panics if interner has already been given one of these spellings, since the symbols would no longer be one run and every lookup after that would be wrong. Build this first, immediately after the interner itself.

pub fn get(&self, symbol: Symbol) -> Option<Keyword>

The keyword symbol is in this dialect, and None when it is an identifier.

pub fn contains(&self, symbol: Symbol) -> bool

Whether symbol is a keyword in this dialect.

pub fn len(&self) -> usize

How many spellings the table holds, active in this dialect or not.

pub fn is_empty(&self) -> bool

Whether the table is empty, which it never is.

Trait Implementations

impl Debug for Keywords

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

Formats the value using the given formatter.