Enum rustc_ap_rustc_ast::util::parser::AssocOp

pub enum AssocOp {
    Add,
    Subtract,
    Multiply,
    Divide,
    Modulus,
    LAnd,
    LOr,
    BitXor,
    BitAnd,
    BitOr,
    ShiftLeft,
    ShiftRight,
    Equal,
    Less,
    LessEqual,
    NotEqual,
    Greater,
    GreaterEqual,
    Assign,
    AssignOp(BinOpToken),
    As,
    DotDot,
    DotDotEq,
    Colon,
}

Associative operator with precedence.

This is the enum which specifies operator precedence and fixity to the parser.

Variants

Add

+

Subtract

-

Multiply

*

Divide

/

Modulus

%

LAnd

&&

LOr

||

BitXor

^

BitAnd

&

BitOr

|

ShiftLeft

<<

ShiftRight

>>

Equal

==

Less

<

LessEqual

<=

NotEqual

!=

Greater

>

GreaterEqual

>=

Assign

=

AssignOp(BinOpToken)

?= where ? is one of the BinOpToken

As

as

DotDot

.. range

DotDotEq

..= range

Colon

:

Implementations

impl AssocOp

pub fn from_token(t: &Token) -> Option<AssocOp>

Creates a new AssocOP from a token

pub fn from_ast_binop(op: BinOpKind) -> Self

Creates a new AssocOp from ast::BinOpKind.

pub fn precedence(&self) -> usize

Gets the precedence of this operator

pub fn fixity(&self) -> Fixity

Gets the fixity of this operator

pub fn is_comparison(&self) -> bool

pub fn is_assign_like(&self) -> bool

pub fn to_ast_binop(&self) -> Option<BinOpKind>

pub fn can_continue_expr_unambiguously(&self) -> bool

This operator could be used to follow a block unambiguously.

This is used for error recovery at the moment, providing a suggestion to wrap blocks with parentheses while having a high degree of confidence on the correctness of the suggestion.

Trait Implementations

impl Clone for AssocOp

fn clone(&self) -> AssocOp

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AssocOp

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl PartialEq<AssocOp> for AssocOp

fn eq(&self, other: &AssocOp) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &AssocOp) -> bool

This method tests for !=.

impl Copy for AssocOp

impl StructuralPartialEq for AssocOp