tedious
Version:
A TDS driver, for connecting to MS SQLServer databases.
67 lines (66 loc) • 7.37 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
const NULL_LENGTH = Buffer.from([0xFF, 0xFF]);
const Binary = {
id: 0xAD,
type: 'BIGBinary',
name: 'Binary',
maximumLength: 8000,
declaration: function (parameter) {
const value = parameter.value;
let length;
if (parameter.length) {
length = parameter.length;
} else if (value != null) {
length = value.length || 1;
} else if (value === null && !parameter.output) {
length = 1;
} else {
length = this.maximumLength;
}
return 'binary(' + length + ')';
},
resolveLength: function (parameter) {
const value = parameter.value;
if (value != null) {
return value.length;
} else {
return this.maximumLength;
}
},
generateTypeInfo(parameter) {
const buffer = Buffer.alloc(3);
buffer.writeUInt8(this.id, 0);
buffer.writeUInt16LE(parameter.length, 1);
return buffer;
},
generateParameterLength(parameter, options) {
if (parameter.value == null) {
return NULL_LENGTH;
}
const buffer = Buffer.alloc(2);
buffer.writeUInt16LE(parameter.length, 0);
return buffer;
},
*generateParameterData(parameter, options) {
if (parameter.value == null) {
return;
}
yield parameter.value.slice(0, parameter.length !== undefined ? Math.min(parameter.length, this.maximumLength) : this.maximumLength);
},
validate: function (value) {
if (value == null) {
return null;
}
if (!Buffer.isBuffer(value)) {
throw new TypeError('Invalid buffer.');
}
return value;
}
};
var _default = exports.default = Binary;
module.exports = Binary;
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