Enum Expr 

pub enum Expr {
    Or(Box<Expr>, Box<Expr>),
    And(Box<Expr>, Box<Expr>),
    Equality(Box<Expr>, EqualityOp, Box<Expr>),
    Relational(Box<Expr>, RelationalOp, Box<Expr>),
    Additive(Box<Expr>, AdditiveOp, Box<Expr>),
    Multiplicative(Box<Expr>, MultiplicativeOp, Box<Expr>),
    Negate(Box<Expr>),
    Union(Box<Expr>, Box<Expr>),
    Path(PathExpr),
}

[14] Expr and the full operator-precedence chain [18]/[21]-[27] in a single flat enum: each precedence level either produces a node here or, when its operator is absent, simply returns the inner expression from the next-tighter level (standard precedence-climbing shortcut).

Variants

Or(Box<Expr>, Box<Expr>)

[21] OrExpr.

And(Box<Expr>, Box<Expr>)

[22] AndExpr.

Equality(Box<Expr>, EqualityOp, Box<Expr>)

[23] EqualityExpr.

Relational(Box<Expr>, RelationalOp, Box<Expr>)

[24] RelationalExpr.

Additive(Box<Expr>, AdditiveOp, Box<Expr>)

[25] AdditiveExpr.

Multiplicative(Box<Expr>, MultiplicativeOp, Box<Expr>)

[26] MultiplicativeExpr.

Negate(Box<Expr>)

[27] UnaryExpr ::= '-' UnaryExpr.

Union(Box<Expr>, Box<Expr>)

[18] UnionExpr.

Path(PathExpr)

[19] PathExpr.

Trait Implementations

impl Clone for Expr

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expr

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

Formats the value using the given formatter.

impl PartialEq for Expr

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Expr