Struct safer_ffi::headers::HashSetDefiner

pub struct HashSetDefiner<'out> {
    pub defines_set: HashSet<String>,
    pub out: &'out mut dyn Write,
}

This is supported on crate feature headers only.

Simplest implementation of a Definer: a HashSet<String>, &'_ mut dyn Write pair.

Fields

defines_set: HashSet<String>

out: &'out mut dyn Write

Trait Implementations

impl Definer for HashSetDefiner<'_>

fn insert(&mut self, name: &str) -> bool

Must return true iff an actual insert happened.

fn out(&mut self) -> &mut dyn Write

Yields a handle to the underlying Writer

fn define_once(
    &mut self,
    name: &str,
    write_typedef: &mut dyn FnMut(&mut dyn Definer) -> Result<()>
) -> Result<()>

Convenience method to perform an .insert() so that if it succeeds (thus guaranteeing the call happens for the first time), it calls write_typedef on itself.