tedious
Version:
A TDS driver, for connecting to MS SQLServer databases.
114 lines (98 loc) • 10.9 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
const NULL_LENGTH = Buffer.from([0xFF, 0xFF]);
const NChar = {
id: 0xEF,
type: 'NCHAR',
name: 'NChar',
maximumLength: 4000,
declaration: function (parameter) {
// const value = parameter.value as null | string | { toString(): string };
const value = parameter.value; // Temporary solution. Remove 'any' later.
let length;
if (parameter.length) {
length = parameter.length;
} else if (parameter.value != null) {
length = value.toString().length || 1;
} else if (parameter.value === null && !parameter.output) {
length = 1;
} else {
length = this.maximumLength;
}
if (length < this.maximumLength) {
return 'nchar(' + length + ')';
} else {
return 'nchar(' + this.maximumLength + ')';
}
},
resolveLength: function (parameter) {
// const value = parameter.value as null | string | { toString(): string };
const value = parameter.value; // Temporary solution. Remove 'any' later.
if (parameter.length != null) {
return parameter.length;
} else if (parameter.value != null) {
if (Buffer.isBuffer(parameter.value)) {
return parameter.value.length / 2 || 1;
} else {
return value.toString().length || 1;
}
} else {
return this.maximumLength;
}
},
generateTypeInfo: function (parameter) {
const buffer = Buffer.alloc(8);
buffer.writeUInt8(this.id, 0);
buffer.writeUInt16LE(parameter.length * 2, 1);
if (parameter.collation) {
parameter.collation.toBuffer().copy(buffer, 3, 0, 5);
}
return buffer;
},
generateParameterLength(parameter, options) {
if (parameter.value == null) {
return NULL_LENGTH;
}
const {
value
} = parameter;
if (value instanceof Buffer) {
const length = value.length;
const buffer = Buffer.alloc(2);
buffer.writeUInt16LE(length, 0);
return buffer;
} else {
const length = Buffer.byteLength(value.toString(), 'ucs2');
const buffer = Buffer.alloc(2);
buffer.writeUInt16LE(length, 0);
return buffer;
}
},
*generateParameterData(parameter, options) {
if (parameter.value == null) {
return;
}
const value = parameter.value;
if (value instanceof Buffer) {
yield value;
} else {
yield Buffer.from(value, 'ucs2');
}
},
validate: function (value) {
if (value == null) {
return null;
}
if (typeof value !== 'string') {
throw new TypeError('Invalid string.');
}
return value;
}
};
var _default = NChar;
exports.default = _default;
module.exports = NChar;
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["NULL_LENGTH","Buffer","from","NChar","id","type","name","maximumLength","declaration","parameter","value","length","toString","output","resolveLength","isBuffer","generateTypeInfo","buffer","alloc","writeUInt8","writeUInt16LE","collation","toBuffer","copy","generateParameterLength","options","byteLength","generateParameterData","validate","TypeError","module","exports"],"sources":["../../src/data-types/nchar.ts"],"sourcesContent":["import { DataType } from '../data-type';\n\nconst NULL_LENGTH = Buffer.from([0xFF, 0xFF]);\n\nconst NChar: DataType & { maximumLength: number } = {\n  id: 0xEF,\n  type: 'NCHAR',\n  name: 'NChar',\n  maximumLength: 4000,\n\n  declaration: function(parameter) {\n    // const value = parameter.value as null | string | { toString(): string };\n    const value = parameter.value as any; // Temporary solution. Remove 'any' later.\n\n    let length;\n    if (parameter.length) {\n      length = parameter.length;\n    } else if (parameter.value != null) {\n      length = value.toString().length || 1;\n    } else if (parameter.value === null && !parameter.output) {\n      length = 1;\n    } else {\n      length = this.maximumLength;\n    }\n\n    if (length < this.maximumLength) {\n      return 'nchar(' + length + ')';\n    } else {\n      return 'nchar(' + this.maximumLength + ')';\n    }\n  },\n\n  resolveLength: function(parameter) {\n    // const value = parameter.value as null | string | { toString(): string };\n    const value = parameter.value as any; // Temporary solution. Remove 'any' later.\n\n    if (parameter.length != null) {\n      return parameter.length;\n    } else if (parameter.value != null) {\n      if (Buffer.isBuffer(parameter.value)) {\n        return (parameter.value.length / 2) || 1;\n      } else {\n        return value.toString().length || 1;\n      }\n    } else {\n      return this.maximumLength;\n    }\n  },\n\n  generateTypeInfo: function(parameter) {\n    const buffer = Buffer.alloc(8);\n    buffer.writeUInt8(this.id, 0);\n    buffer.writeUInt16LE(parameter.length! * 2, 1);\n\n    if (parameter.collation) {\n      parameter.collation.toBuffer().copy(buffer, 3, 0, 5);\n    }\n\n    return buffer;\n  },\n\n  generateParameterLength(parameter, options) {\n    if (parameter.value == null) {\n      return NULL_LENGTH;\n    }\n\n    const { value } = parameter;\n    if (value instanceof Buffer) {\n      const length = value.length;\n      const buffer = Buffer.alloc(2);\n\n      buffer.writeUInt16LE(length, 0);\n\n      return buffer;\n    } else {\n      const length = Buffer.byteLength(value.toString(), 'ucs2');\n\n      const buffer = Buffer.alloc(2);\n      buffer.writeUInt16LE(length, 0);\n      return buffer;\n    }\n  },\n\n  * generateParameterData(parameter, options) {\n    if (parameter.value == null) {\n      return;\n    }\n\n    const value = parameter.value;\n    if (value instanceof Buffer) {\n      yield value;\n    } else {\n      yield Buffer.from(value, 'ucs2');\n    }\n  },\n\n  validate: function(value): string | null {\n    if (value == null) {\n      return null;\n    }\n\n    if (typeof value !== 'string') {\n      throw new TypeError('Invalid string.');\n    }\n\n    return value;\n  }\n};\n\nexport default NChar;\nmodule.exports = NChar;\n"],"mappings":";;;;;;AAEA,MAAMA,WAAW,GAAGC,MAAM,CAACC,IAAP,CAAY,CAAC,IAAD,EAAO,IAAP,CAAZ,CAApB;AAEA,MAAMC,KAA2C,GAAG;EAClDC,EAAE,EAAE,IAD8C;EAElDC,IAAI,EAAE,OAF4C;EAGlDC,IAAI,EAAE,OAH4C;EAIlDC,aAAa,EAAE,IAJmC;EAMlDC,WAAW,EAAE,UAASC,SAAT,EAAoB;IAC/B;IACA,MAAMC,KAAK,GAAGD,SAAS,CAACC,KAAxB,CAF+B,CAEO;;IAEtC,IAAIC,MAAJ;;IACA,IAAIF,SAAS,CAACE,MAAd,EAAsB;MACpBA,MAAM,GAAGF,SAAS,CAACE,MAAnB;IACD,CAFD,MAEO,IAAIF,SAAS,CAACC,KAAV,IAAmB,IAAvB,EAA6B;MAClCC,MAAM,GAAGD,KAAK,CAACE,QAAN,GAAiBD,MAAjB,IAA2B,CAApC;IACD,CAFM,MAEA,IAAIF,SAAS,CAACC,KAAV,KAAoB,IAApB,IAA4B,CAACD,SAAS,CAACI,MAA3C,EAAmD;MACxDF,MAAM,GAAG,CAAT;IACD,CAFM,MAEA;MACLA,MAAM,GAAG,KAAKJ,aAAd;IACD;;IAED,IAAII,MAAM,GAAG,KAAKJ,aAAlB,EAAiC;MAC/B,OAAO,WAAWI,MAAX,GAAoB,GAA3B;IACD,CAFD,MAEO;MACL,OAAO,WAAW,KAAKJ,aAAhB,GAAgC,GAAvC;IACD;EACF,CA1BiD;EA4BlDO,aAAa,EAAE,UAASL,SAAT,EAAoB;IACjC;IACA,MAAMC,KAAK,GAAGD,SAAS,CAACC,KAAxB,CAFiC,CAEK;;IAEtC,IAAID,SAAS,CAACE,MAAV,IAAoB,IAAxB,EAA8B;MAC5B,OAAOF,SAAS,CAACE,MAAjB;IACD,CAFD,MAEO,IAAIF,SAAS,CAACC,KAAV,IAAmB,IAAvB,EAA6B;MAClC,IAAIT,MAAM,CAACc,QAAP,CAAgBN,SAAS,CAACC,KAA1B,CAAJ,EAAsC;QACpC,OAAQD,SAAS,CAACC,KAAV,CAAgBC,MAAhB,GAAyB,CAA1B,IAAgC,CAAvC;MACD,CAFD,MAEO;QACL,OAAOD,KAAK,CAACE,QAAN,GAAiBD,MAAjB,IAA2B,CAAlC;MACD;IACF,CANM,MAMA;MACL,OAAO,KAAKJ,aAAZ;IACD;EACF,CA3CiD;EA6ClDS,gBAAgB,EAAE,UAASP,SAAT,EAAoB;IACpC,MAAMQ,MAAM,GAAGhB,MAAM,CAACiB,KAAP,CAAa,CAAb,CAAf;IACAD,MAAM,CAACE,UAAP,CAAkB,KAAKf,EAAvB,EAA2B,CAA3B;IACAa,MAAM,CAACG,aAAP,CAAqBX,SAAS,CAACE,MAAV,GAAoB,CAAzC,EAA4C,CAA5C;;IAEA,IAAIF,SAAS,CAACY,SAAd,EAAyB;MACvBZ,SAAS,CAACY,SAAV,CAAoBC,QAApB,GAA+BC,IAA/B,CAAoCN,MAApC,EAA4C,CAA5C,EAA+C,CAA/C,EAAkD,CAAlD;IACD;;IAED,OAAOA,MAAP;EACD,CAvDiD;;EAyDlDO,uBAAuB,CAACf,SAAD,EAAYgB,OAAZ,EAAqB;IAC1C,IAAIhB,SAAS,CAACC,KAAV,IAAmB,IAAvB,EAA6B;MAC3B,OAAOV,WAAP;IACD;;IAED,MAAM;MAAEU;IAAF,IAAYD,SAAlB;;IACA,IAAIC,KAAK,YAAYT,MAArB,EAA6B;MAC3B,MAAMU,MAAM,GAAGD,KAAK,CAACC,MAArB;MACA,MAAMM,MAAM,GAAGhB,MAAM,CAACiB,KAAP,CAAa,CAAb,CAAf;MAEAD,MAAM,CAACG,aAAP,CAAqBT,MAArB,EAA6B,CAA7B;MAEA,OAAOM,MAAP;IACD,CAPD,MAOO;MACL,MAAMN,MAAM,GAAGV,MAAM,CAACyB,UAAP,CAAkBhB,KAAK,CAACE,QAAN,EAAlB,EAAoC,MAApC,CAAf;MAEA,MAAMK,MAAM,GAAGhB,MAAM,CAACiB,KAAP,CAAa,CAAb,CAAf;MACAD,MAAM,CAACG,aAAP,CAAqBT,MAArB,EAA6B,CAA7B;MACA,OAAOM,MAAP;IACD;EACF,CA7EiD;;EA+ElD,CAAEU,qBAAF,CAAwBlB,SAAxB,EAAmCgB,OAAnC,EAA4C;IAC1C,IAAIhB,SAAS,CAACC,KAAV,IAAmB,IAAvB,EAA6B;MAC3B;IACD;;IAED,MAAMA,KAAK,GAAGD,SAAS,CAACC,KAAxB;;IACA,IAAIA,KAAK,YAAYT,MAArB,EAA6B;MAC3B,MAAMS,KAAN;IACD,CAFD,MAEO;MACL,MAAMT,MAAM,CAACC,IAAP,CAAYQ,KAAZ,EAAmB,MAAnB,CAAN;IACD;EACF,CA1FiD;;EA4FlDkB,QAAQ,EAAE,UAASlB,KAAT,EAA+B;IACvC,IAAIA,KAAK,IAAI,IAAb,EAAmB;MACjB,OAAO,IAAP;IACD;;IAED,IAAI,OAAOA,KAAP,KAAiB,QAArB,EAA+B;MAC7B,MAAM,IAAImB,SAAJ,CAAc,iBAAd,CAAN;IACD;;IAED,OAAOnB,KAAP;EACD;AAtGiD,CAApD;eAyGeP,K;;AACf2B,MAAM,CAACC,OAAP,GAAiB5B,KAAjB"}