tedious
Version:
A TDS driver, for connecting to MS SQLServer databases.
56 lines (55 loc) • 5.69 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
const NULL_LENGTH = Buffer.from([0xFF, 0xFF, 0xFF, 0xFF]);
const Image = {
id: 0x22,
type: 'IMAGE',
name: 'Image',
hasTableName: true,
declaration: function () {
return 'image';
},
resolveLength: function (parameter) {
if (parameter.value != null) {
const value = parameter.value; // TODO: Temporary solution. Replace 'any' more with specific type;
return value.length;
} else {
return -1;
}
},
generateTypeInfo(parameter) {
const buffer = Buffer.alloc(5);
buffer.writeUInt8(this.id, 0);
buffer.writeInt32LE(parameter.length, 1);
return buffer;
},
generateParameterLength(parameter, options) {
if (parameter.value == null) {
return NULL_LENGTH;
}
const buffer = Buffer.alloc(4);
buffer.writeInt32LE(parameter.value.length, 0);
return buffer;
},
*generateParameterData(parameter, options) {
if (parameter.value == null) {
return;
}
yield parameter.value;
},
validate: function (value) {
if (value == null) {
return null;
}
if (!Buffer.isBuffer(value)) {
throw new TypeError('Invalid buffer.');
}
return value;
}
};
var _default = exports.default = Image;
module.exports = Image;
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