Enum syntax::parse::token::Token
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pub enum Token { Eq, Lt, Le, EqEq, Ne, Ge, Gt, AndAnd, OrOr, Not, Tilde, BinOp(BinOpToken), BinOpEq(BinOpToken), At, Dot, DotDot, DotDotDot, DotDotEq, DotEq, Comma, Semi, Colon, ModSep, RArrow, LArrow, FatArrow, Pound, Dollar, Question, OpenDelim(DelimToken), CloseDelim(DelimToken), Literal(Lit, Option<Name>), Ident(Ident), Underscore, Lifetime(Ident), Interpolated(Lrc<(Nonterminal, LazyTokenStream)>), DocComment(Name), Whitespace, Comment, Shebang(Name), Eof, }
Variants
Eq
Lt
Le
EqEq
Ne
Ge
Gt
AndAnd
OrOr
Not
Tilde
BinOp(BinOpToken)
BinOpEq(BinOpToken)
At
Dot
DotDot
DotDotDot
DotDotEq
DotEq
Comma
Semi
Colon
ModSep
RArrow
LArrow
FatArrow
Pound
Dollar
Question
OpenDelim(DelimToken)
An opening delimiter, eg. {
CloseDelim(DelimToken)
A closing delimiter, eg. }
Literal(Lit, Option<Name>)
Ident(Ident)
Underscore
Lifetime(Ident)
Interpolated(Lrc<(Nonterminal, LazyTokenStream)>)
DocComment(Name)
Doc comment
Whitespace
Whitespace
Comment
Comment
Shebang(Name)
Eof
Methods
impl Token
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pub fn interpolated(nt: Nonterminal) -> Token
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pub fn is_like_gt(&self) -> bool
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Returns true
if the token starts with '>'.
pub fn can_begin_expr(&self) -> bool
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Returns true
if the token can appear at the start of an expression.
pub fn can_begin_type(&self) -> bool
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Returns true
if the token can appear at the start of a type.
pub fn can_begin_bound(&self) -> bool
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Returns true
if the token can appear at the start of a generic bound.
pub fn is_lit(&self) -> bool
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Returns true
if the token is any literal
pub fn ident(&self) -> Option<Ident>
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pub fn is_ident(&self) -> bool
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Returns true
if the token is an identifier.
pub fn is_doc_comment(&self) -> bool
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Returns true
if the token is a documentation comment.
pub fn is_interpolated(&self) -> bool
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Returns true
if the token is interpolated.
pub fn is_path(&self) -> bool
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Returns true
if the token is an interpolated path.
pub fn lifetime(&self, span: Span) -> Option<Lifetime>
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Returns a lifetime with the span and a dummy id if it is a lifetime, or the original lifetime if it is an interpolated lifetime, ignoring the span.
pub fn is_lifetime(&self) -> bool
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Returns true
if the token is a lifetime.
pub fn is_mutability(&self) -> bool
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Returns true
if the token is either the mut
or const
keyword.
pub fn is_qpath_start(&self) -> bool
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pub fn is_path_start(&self) -> bool
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pub fn is_keyword(&self, kw: Keyword) -> bool
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Returns true
if the token is a given keyword, kw
.
pub fn is_path_segment_keyword(&self) -> bool
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pub fn is_special_ident(&self) -> bool
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pub fn is_used_keyword(&self) -> bool
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Returns true
if the token is a keyword used in the language.
pub fn is_unused_keyword(&self) -> bool
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Returns true
if the token is a keyword reserved for possible future use.
pub fn glue(self, joint: Token) -> Option<Token>
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pub fn similar_tokens(&self) -> Option<Vec<Token>>
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Returns tokens that are likely to be typed accidentally instead of the current token. Enables better error recovery when the wrong token is found.
pub fn is_reserved_ident(&self) -> bool
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Returns true
if the token is either a special identifier or a keyword.
pub fn interpolated_to_tokenstream(
&self,
sess: &ParseSess,
span: Span
) -> TokenStream
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&self,
sess: &ParseSess,
span: Span
) -> TokenStream
Trait Implementations
impl Clone for Token
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fn clone(&self) -> Token
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Returns a copy of the value. Read more
fn clone_from(&mut self, source: &Self)
1.0.0[src]
Performs copy-assignment from source
. Read more
impl Encodable for Token
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impl Decodable for Token
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impl PartialEq for Token
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fn eq(&self, __arg_0: &Token) -> bool
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This method tests for self
and other
values to be equal, and is used by ==
. Read more
fn ne(&self, __arg_0: &Token) -> bool
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This method tests for !=
.
impl Eq for Token
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impl Hash for Token
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fn hash<__H: Hasher>(&self, __arg_0: &mut __H)
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Feeds this value into the given [Hasher
]. Read more
fn hash_slice<H>(data: &[Self], state: &mut H) where
H: Hasher,
1.3.0[src]
H: Hasher,
Feeds a slice of this type into the given [Hasher
]. Read more
impl Debug for Token
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fn fmt(&self, __arg_0: &mut Formatter) -> Result
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Formats the value using the given formatter. Read more
impl From<Token> for TokenStream
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fn from(token: Token) -> TokenStream
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Performs the conversion.