Trait proclet::TokenStreamExt
source · pub trait TokenStreamExt: ProcMacroExt<TokenStreamExt = Self> + TokenStream + FromStrDebug {
// Provided methods
fn apply_span(self, span: Self::Span) -> Self { ... }
fn expect(
self,
tokens: impl Iterator<Item = Self::TokenTree>
) -> Option<(Self, Self)> { ... }
}
Expand description
Extensions for TokenStream
.
This trait is implemented for TokenStream
in proc_macro
and proc_macro2
if the
corresponding feature is enabled.
Provided Methods§
sourcefn apply_span(self, span: Self::Span) -> Self
fn apply_span(self, span: Self::Span) -> Self
Apply a span to every TokenTree
in the TokenStream
, using TokenTree::set_span
sourcefn expect(
self,
tokens: impl Iterator<Item = Self::TokenTree>
) -> Option<(Self, Self)>
fn expect( self, tokens: impl Iterator<Item = Self::TokenTree> ) -> Option<(Self, Self)>
Match tokens
and split the TokenStream
.
The first value in the returned tuple is a TokenStream
with the matched tokens
(taken from self
), and the second is the rest of the TokenStream
with the
matching tokens removed.
Object Safety§
This trait is not object safe.
Implementations on Foreign Types§
impl TokenStreamExt for TokenStream
Available on crate feature
proc-macro
only.impl TokenStreamExt for TokenStream
Available on crate feature
proc-macro2
only.