Struct Expression 

pub struct Expression {
    pub span: NodeSpan,
    pub kind: ExpressionKind,
}

A canonical expression, and where it was written.

Same shape as [parser::Expression] — a [NodeSpan] beside a kind — and for the same reason: the children stay Box<Expression>, so a reader matches &e.kind.

Fields

span: NodeSpan

kind: ExpressionKind

Implementations

impl Expression

pub fn new(span: NodeSpan, kind: ExpressionKind) -> Expression

An expression canonicalized from source, keeping the parser node’s position.

pub fn bare(kind: ExpressionKind) -> Expression

An expression with no position: hand-built by a test, or synthesised by the compiler with nothing in the user’s text behind it. See [NodeSpan].

Trait Implementations

impl Clone for Expression

fn clone(&self) -> Expression

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Expression

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

Formats the value using the given formatter.

impl PartialEq for Expression

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Expression