Function parseAssignmentExpression

scripts/libs/esprima.js:3115–3148

()

    // 11.13 Assignment Operators

    function parseAssignmentExpression() {
        var token, expr, right, list, startToken;

        startToken = lookahead;
        token = lookahead;

        expr = parseConditionalExpression();

        if (expr.type === PlaceHolders.ArrowParameterPlaceHolder || match('=>')) {
            list = reinterpretAsCoverFormalsList(expr);

            if (list) {
                return parseArrowFunctionExpression(list, new WrappingNode(startToken));
            }
        }

        if (matchAssign()) {
            // LeftHandSideExpression
            if (!isLeftHandSide(expr)) {
                tolerateError(Messages.InvalidLHSInAssignment);
            }

            // 11.13.1
            if (strict && expr.type === Syntax.Identifier && isRestrictedWord(expr.name)) {
                tolerateUnexpectedToken(token, Messages.StrictLHSAssignment);
            }

            token = lex();
            right = parseAssignmentExpression();
            expr = new WrappingNode(startToken).finishAssignmentExpression(token.value, expr, right);
        }

        return expr;
    }

    // 11.14 Comma Operator