Enum proc_macro::TokenTree 1.29.0[−][src]
A single token or a delimited sequence of token trees (e.g., [1, (), ..]).
Variants
Group(Group)A token stream surrounded by bracket delimiters.
Ident(Ident)An identifier.
Punct(Punct)A single punctuation character (+, ,, $, etc.).
Literal(Literal)A literal character ('a'), string ("hello"), number (2.3), etc.
Implementations
impl TokenTree[src]
impl TokenTree[src]pub fn span(&self) -> Span[src]
Returns the span of this tree, delegating to the span method of
the contained token or a delimited stream.
pub fn set_span(&mut self, span: Span)[src]
Configures the span for only this token.
Note that if this token is a Group then this method will not configure
the span of each of the internal tokens, this will simply delegate to
the set_span method of each variant.
Trait Implementations
impl Display for TokenTree[src]
impl Display for TokenTree[src]Prints the token tree as a string that is supposed to be losslessly convertible back
into the same token tree (modulo spans), except for possibly TokenTree::Groups
with Delimiter::None delimiters and negative numeric literals.
impl Extend<TokenTree> for TokenStream1.30.0[src]
impl Extend<TokenTree> for TokenStream1.30.0[src]fn extend<I: IntoIterator<Item = TokenTree>>(&mut self, trees: I)[src]
pub fn extend_one(&mut self, item: A)[src]
pub fn extend_reserve(&mut self, additional: usize)[src]
impl From<TokenTree> for TokenStream[src]
impl From<TokenTree> for TokenStream[src]Creates a token stream containing a single token tree.
fn from(tree: TokenTree) -> TokenStream[src]
impl FromIterator<TokenTree> for TokenStream[src]
impl FromIterator<TokenTree> for TokenStream[src]Collects a number of token trees into a single stream.