Struct TokenOutputTrimmer 

pub struct TokenOutputTrimmer<'t, 'o> {
    preamble: Option<&'t dyn ToTokens>,
    sep: &'t dyn ToTokens,
    sep_count: usize,
    out: &'o mut TokenStream,
}

For making an output TokenStream, but eliding an unnecessary tail

This construction will write, to an output TokenStream,

• preamble
• zero or more optional impl ToTokens, called “reified”
• interleaved with zero or more optional separators sep

But it will avoid writing trailing unnecessary content: that is, trailing calls to push_sep are ignored, and if push_reified is never called, the preamble is also omitted.

Fields

preamble: Option<&'t dyn ToTokens>

sep: &'t dyn ToTokens

sep_count: usize

out: &'o mut TokenStream

Implementations

impl<'t, 'o> TokenOutputTrimmer<'t, 'o>

pub fn new( out: &'o mut TokenStream, preamble: &'t dyn ToTokens, sep: &'t dyn ToTokens, ) -> Self

pub fn push_sep(&mut self)

fn reify(&mut self)

pub fn push_reified(&mut self, t: impl ToTokens)

pub fn did_preamble(self) -> Option<()>

Did we output the preamble at all?