Method _parseAirthmeticFactor

server/src/parser/parser.ts:1551–1572

()

    // factor: ('+'|'-'|'~') factor | power
    // power: atom_expr ['**' factor]
    private _parseAirthmeticFactor(): ExpressionNode {
        let nextOperator = this._peekOperatorType();
        if (nextOperator === OperatorType.Add ||
                nextOperator === OperatorType.Subtract ||
                nextOperator === OperatorType.BitwiseInvert) {
            this._getNextToken();
            let expression = this._parseAirthmeticFactor();
            return new UnaryExpressionNode(expression, nextOperator);
        }

        let leftExpr = this._parseAtomExpression();
        if (leftExpr instanceof ErrorExpressionNode) {
            return leftExpr;
        }

        if (this._consumeTokenIfOperator(OperatorType.Power)) {
            let rightExpr = this._parseAirthmeticFactor();
            return new BinaryExpressionNode(leftExpr, rightExpr, OperatorType.Power);
        }

        return leftExpr;
    }

    // atom_expr: ['await'] atom trailer*
    // trailer: '(' [arglist] ')' | '[' subscriptlist ']' | '.' NAME