Method parse_atom

crates/ruff_python_parser/src/parser/expression.rs:650–741

Parses an atom. See:

(&mut self, context: ExpressionContext)

    ///
    /// See: <https://docs.python.org/3/reference/expressions.html#atoms>
    fn parse_atom(&mut self, context: ExpressionContext) -> ParsedExpr {
        let start = self.node_start();

        let lhs = match self.current_token_kind() {
            TokenKind::Float => {
                let value = self.bump_float();

                Expr::NumberLiteral(ast::ExprNumberLiteral {
                    value: Number::Float(value),
                    range: self.node_range(start),
                    node_index: AtomicNodeIndex::NONE,
                })
            }
            TokenKind::Complex => {
                let (real, imag) = self.bump_complex();
                Expr::NumberLiteral(ast::ExprNumberLiteral {
                    value: Number::Complex { real, imag },
                    range: self.node_range(start),
                    node_index: AtomicNodeIndex::NONE,
                })
            }
            TokenKind::Int => {
                let value = self.bump_int();
                Expr::NumberLiteral(ast::ExprNumberLiteral {
                    value: Number::Int(value),
                    range: self.node_range(start),
                    node_index: AtomicNodeIndex::NONE,
                })
            }
            TokenKind::True => {
                self.bump(TokenKind::True);
                Expr::BooleanLiteral(ast::ExprBooleanLiteral {
                    value: true,
                    range: self.node_range(start),
                    node_index: AtomicNodeIndex::NONE,
                })
            }
            TokenKind::False => {
                self.bump(TokenKind::False);
                Expr::BooleanLiteral(ast::ExprBooleanLiteral {
                    value: false,
                    range: self.node_range(start),
                    node_index: AtomicNodeIndex::NONE,
                })
            }
            TokenKind::None => {
                self.bump(TokenKind::None);
                Expr::NoneLiteral(ast::ExprNoneLiteral {
                    range: self.node_range(start),
                    node_index: AtomicNodeIndex::NONE,
                })
            }
            TokenKind::Ellipsis => {
                self.bump(TokenKind::Ellipsis);
                Expr::EllipsisLiteral(ast::ExprEllipsisLiteral {
                    range: self.node_range(start),
                    node_index: AtomicNodeIndex::NONE,
                })