tedious/lib/data-types/real.js

A TDS driver, for connecting to MS SQLServer databases.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _floatn = _interopRequireDefault(require("./floatn"));
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
const NULL_LENGTH = Buffer.from([0x00]);
const DATA_LENGTH = Buffer.from([0x04]);
const Real = {
  id: 0x3B,
  type: 'FLT4',
  name: 'Real',
  declaration: function () {
    return 'real';
  },
  generateTypeInfo() {
    return Buffer.from([_floatn.default.id, 0x04]);
  },
  generateParameterLength(parameter, options) {
    if (parameter.value == null) {
      return NULL_LENGTH;
    }
    return DATA_LENGTH;
  },
  *generateParameterData(parameter, options) {
    if (parameter.value == null) {
      return;
    }
    const buffer = Buffer.alloc(4);
    buffer.writeFloatLE(parseFloat(parameter.value), 0);
    yield buffer;
  },
  validate: function (value) {
    if (value == null) {
      return null;
    }
    value = parseFloat(value);
    if (isNaN(value)) {
      throw new TypeError('Invalid number.');
    }
    return value;
  }
};
var _default = exports.default = Real;
module.exports = Real;
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