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.
Methods
impl TokenTree[src]
impl TokenTreepub fn span(&self) -> Span[src]
pub fn span(&self) -> SpanReturns 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]
pub fn set_span(&mut self, span: Span)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 From<TokenTree> for TokenStream[src]
impl From<TokenTree> for TokenStreamCreates a token stream containing a single token tree.
fn from(tree: TokenTree) -> TokenStream[src]
fn from(tree: TokenTree) -> TokenStreamPerforms the conversion.
impl FromIterator<TokenTree> for TokenStream[src]
impl FromIterator<TokenTree> for TokenStreamCollects a number of token trees into a single stream.
fn from_iter<I: IntoIterator<Item = TokenTree>>(trees: I) -> Self[src]
fn from_iter<I: IntoIterator<Item = TokenTree>>(trees: I) -> SelfCreates a value from an iterator. Read more
impl Clone for TokenTree[src]
impl Clone for TokenTreefn clone(&self) -> TokenTree[src]
fn clone(&self) -> TokenTreeReturns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)1.0.0[src]
fn clone_from(&mut self, source: &Self)Performs copy-assignment from source. Read more
impl !Send for TokenTree[src]
impl !Send for TokenTreeimpl !Sync for TokenTree[src]
impl !Sync for TokenTreeimpl Debug for TokenTree[src]
impl Debug for TokenTreePrints token treee in a form convenient for debugging.
fn fmt(&self, f: &mut Formatter) -> Result[src]
fn fmt(&self, f: &mut Formatter) -> ResultFormats the value using the given formatter. Read more
impl From<Group> for TokenTree[src]
impl From<Group> for TokenTreeimpl From<Ident> for TokenTree[src]
impl From<Ident> for TokenTreeimpl From<Punct> for TokenTree[src]
impl From<Punct> for TokenTreeimpl From<Literal> for TokenTree[src]
impl From<Literal> for TokenTreeimpl Display for TokenTree[src]
impl Display for TokenTreePrints 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.