tedious
Version:
A TDS driver, for connecting to MS SQLServer databases.
175 lines (166 loc) • 23.8 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.default = void 0;
var _errors = require("../errors");
var _writableTrackingBuffer = _interopRequireDefault(require("../tracking-buffer/writable-tracking-buffer"));
var _plpStream = require("./plp-stream");
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
const TVP_TYPE_ID = 0xF3;
const TVP_ROW_TOKEN = Buffer.from([0x01]);
const TVP_END_TOKEN = Buffer.from([0x00]);
// A NULL table: no columns, and the end tokens of the column metadata and
// of the rows.
const NULL_TABLE = Buffer.from([0xFF, 0xFF, 0x00, 0x00]);
function validateTable(value) {
if (value == null) {
return null;
}
if (typeof value !== 'object' || !Array.isArray(value.columns)) {
throw new TypeError('Invalid table.');
}
const rows = value.rows;
if (!Array.isArray(rows) && !(0, _plpStream.isAsyncIterable)(rows)) {
throw new TypeError('Invalid table.');
}
return value;
}
// One cell per column, reused for every row: a type writes a cell's bytes
// as soon as it is handed the cell and keeps no reference to it.
function cellsFor(columns) {
return columns.map(column => ({
value: undefined,
length: column.length,
scale: column.scale,
precision: column.precision
}));
}
function writeTvpTypeInfo(buffer, value) {
buffer.writeUInt8(TVP_TYPE_ID);
// DbName
buffer.writeBVarchar('', 'ucs2');
// OwningSchema
buffer.writeBVarchar(value?.schema ?? '', 'ucs2');
// TypeName
buffer.writeBVarchar(value?.name ?? '', 'ucs2');
}
// The column metadata after the column count: one entry per column, then
// the end token.
function writeColumns(buffer, columns, options) {
for (let i = 0, len = columns.length; i < len; i++) {
const column = columns[i];
// UserType
buffer.writeUInt32LE(0x00000000);
// Flags
buffer.writeUInt16LE(0x0000);
// TYPE_INFO
column.type.writeTypeInfo(buffer, {
value: undefined,
length: column.length,
precision: column.precision,
scale: column.scale
}, options);
// ColName
buffer.writeUInt8(0x00);
}
buffer.writeBuffer(TVP_END_TOKEN);
}
function writeColumnMetadata(buffer, value, options) {
buffer.writeUInt16LE(value.columns.length);
writeColumns(buffer, value.columns, options);
}
// Validates and writes a row cell by cell. A cell that fails validation
// leaves the row half written, which does not matter: the request is
// abandoned with the error and the buffer never reaches the wire.
function writeRow(buffer, columns, cells, row, rowIndex, collation, options) {
if (!Array.isArray(row)) {
throw new _errors.InputError(`TVP row at index ${rowIndex} is not an array`);
}
// Every declared column must have a value: the row metadata covers all
// columns, so a shorter or longer row would desync the server's parse.
if (row.length !== columns.length) {
throw new _errors.InputError(`TVP row at index ${rowIndex} has ${row.length} value(s), but ${columns.length} column(s) are declared`);
}
buffer.writeBuffer(TVP_ROW_TOKEN);
for (let k = 0, len = row.length; k < len; k++) {
const column = columns[k];
const cell = cells[k];
try {
cell.value = column.type.validate(row[k], collation);
} catch (error) {
throw new _errors.InputError(`TVP column '${column.name}' has invalid data at row index ${rowIndex}`, {
cause: error
});
}
// TvpColumnData
column.type.writeValue(buffer, cell, options);
}
}
// Rows given as an array are written in a synchronous loop, so the only
// asynchrony is the yield for every chunk's worth of rows.
async function* writeRows(buffer, value, rows, collation, options) {
writeColumnMetadata(buffer, value, options);
const cells = cellsFor(value.columns);
for (let i = 0, len = rows.length; i < len; i++) {
writeRow(buffer, value.columns, cells, rows[i], i, collation, options);
if (buffer.length >= _writableTrackingBuffer.default.CHUNK_SIZE) {
yield;
}
}
buffer.writeBuffer(TVP_END_TOKEN);
}
async function* writeRowsFrom(buffer, value, rows, collation, options) {
writeColumnMetadata(buffer, value, options);
const cells = cellsFor(value.columns);
let rowIndex = 0;
for await (const row of rows) {
writeRow(buffer, value.columns, cells, row, rowIndex++, collation, options);
if (buffer.length >= _writableTrackingBuffer.default.CHUNK_SIZE) {
yield;
}
}
buffer.writeBuffer(TVP_END_TOKEN);
}
const TVP = {
id: TVP_TYPE_ID,
type: 'TVPTYPE',
name: 'TVP',
declaration: function (parameter) {
const value = parameter.value; // Temporary solution. Remove 'any' later.
const schema = value.schema ? value.schema + '.' : '';
return schema + value.name + ' readonly';
},
validate(value) {
return validateTable(value);
},
resolve(parameter, collation) {
// A TVP's `writeValue` always returns the rest of the write, whether
// its rows are an array or an async iterable.
const data = {
value: validateTable(parameter.value)
};
if (collation) {
data.collation = collation;
}
return data;
},
writeTypeInfo(buffer, parameter) {
writeTvpTypeInfo(buffer, parameter.value);
},
async *writeValue(buffer, parameter, options) {
const value = parameter.value;
if (value == null) {
buffer.writeBuffer(NULL_TABLE);
return;
}
if (Array.isArray(value.rows)) {
yield* writeRows(buffer, value, value.rows, parameter.collation, options);
return;
}
yield* writeRowsFrom(buffer, value, value.rows, parameter.collation, options);
}
};
var _default = exports.default = TVP;
module.exports = TVP;
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"names":["_errors","require","_writableTrackingBuffer","_interopRequireDefault","_plpStream","e","__esModule","default","TVP_TYPE_ID","TVP_ROW_TOKEN","Buffer","from","TVP_END_TOKEN","NULL_TABLE","validateTable","value","Array","isArray","columns","TypeError","rows","isAsyncIterable","cellsFor","map","column","undefined","length","scale","precision","writeTvpTypeInfo","buffer","writeUInt8","writeBVarchar","schema","name","writeColumns","options","i","len","writeUInt32LE","writeUInt16LE","type","writeTypeInfo","writeBuffer","writeColumnMetadata","writeRow","cells","row","rowIndex","collation","InputError","k","cell","validate","error","cause","writeValue","writeRows","WritableTrackingBuffer","CHUNK_SIZE","writeRowsFrom","TVP","id","declaration","parameter","resolve","data","_default","exports","module"],"sources":["../../src/data-types/tvp.ts"],"sourcesContent":["import { type DataType, type ParameterData } from '../data-type';\nimport { type InternalConnectionOptions } from '../connection';\nimport { type Collation } from '../collation';\nimport { InputError } from '../errors';\nimport WritableTrackingBuffer from '../tracking-buffer/writable-tracking-buffer';\nimport { isAsyncIterable } from './plp-stream';\n\nconst TVP_TYPE_ID = 0xF3;\n\nconst TVP_ROW_TOKEN = Buffer.from([0x01]);\nconst TVP_END_TOKEN = Buffer.from([0x00]);\n\n// A NULL table: no columns, and the end tokens of the column metadata and\n// of the rows.\nconst NULL_TABLE = Buffer.from([0xFF, 0xFF, 0x00, 0x00]);\n\ninterface TvpColumn {\n  name: string;\n  type: DataType;\n  length?: number | undefined;\n  precision?: number | undefined;\n  scale?: number | undefined;\n}\n\ntype TvpRow = unknown[];\n\ninterface TvpValue {\n  name?: string | undefined;\n  schema?: string | undefined;\n  columns: TvpColumn[];\n  // Rows are validated as they are written, whether they are given as an\n  // array or as an async iterable that is read while the request is written.\n  rows: TvpRow[] | AsyncIterable<TvpRow>;\n}\n\nfunction validateTable(value: unknown): TvpValue | null {\n  if (value == null) {\n    return null;\n  }\n\n  if (typeof value !== 'object' || !Array.isArray((value as TvpValue).columns)) {\n    throw new TypeError('Invalid table.');\n  }\n\n  const rows = (value as TvpValue).rows;\n  if (!Array.isArray(rows) && !isAsyncIterable(rows)) {\n    throw new TypeError('Invalid table.');\n  }\n\n  return value as TvpValue;\n}\n\n// One cell per column, reused for every row: a type writes a cell's bytes\n// as soon as it is handed the cell and keeps no reference to it.\nfunction cellsFor(columns: TvpColumn[]): ParameterData[] {\n  return columns.map((column) => ({ value: undefined, length: column.length, scale: column.scale, precision: column.precision }));\n}\n\nfunction writeTvpTypeInfo(buffer: WritableTrackingBuffer, value: TvpValue | null) {\n  buffer.writeUInt8(TVP_TYPE_ID);\n  // DbName\n  buffer.writeBVarchar('', 'ucs2');\n  // OwningSchema\n  buffer.writeBVarchar(value?.schema ?? '', 'ucs2');\n  // TypeName\n  buffer.writeBVarchar(value?.name ?? '', 'ucs2');\n}\n\n// The column metadata after the column count: one entry per column, then\n// the end token.\nfunction writeColumns(buffer: WritableTrackingBuffer, columns: TvpColumn[], options: InternalConnectionOptions) {\n  for (let i = 0, len = columns.length; i < len; i++) {\n    const column = columns[i];\n\n    // UserType\n    buffer.writeUInt32LE(0x00000000);\n    // Flags\n    buffer.writeUInt16LE(0x0000);\n    // TYPE_INFO\n    column.type.writeTypeInfo(buffer, { value: undefined, length: column.length, precision: column.precision, scale: column.scale }, options);\n    // ColName\n    buffer.writeUInt8(0x00);\n  }\n\n  buffer.writeBuffer(TVP_END_TOKEN);\n}\n\nfunction writeColumnMetadata(buffer: WritableTrackingBuffer, value: TvpValue, options: InternalConnectionOptions) {\n  buffer.writeUInt16LE(value.columns.length);\n  writeColumns(buffer, value.columns, options);\n}\n\n// Validates and writes a row cell by cell. A cell that fails validation\n// leaves the row half written, which does not matter: the request is\n// abandoned with the error and the buffer never reaches the wire.\nfunction writeRow(buffer: WritableTrackingBuffer, columns: TvpColumn[], cells: ParameterData[], row: TvpRow, rowIndex: number, collation: Collation | undefined, options: InternalConnectionOptions) {\n  if (!Array.isArray(row)) {\n    throw new InputError(`TVP row at index ${rowIndex} is not an array`);\n  }\n\n  // Every declared column must have a value: the row metadata covers all\n  // columns, so a shorter or longer row would desync the server's parse.\n  if (row.length !== columns.length) {\n    throw new InputError(`TVP row at index ${rowIndex} has ${row.length} value(s), but ${columns.length} column(s) are declared`);\n  }\n\n  buffer.writeBuffer(TVP_ROW_TOKEN);\n\n  for (let k = 0, len = row.length; k < len; k++) {\n    const column = columns[k];\n    const cell = cells[k];\n\n    try {\n      cell.value = column.type.validate(row[k], collation);\n    } catch (error) {\n      throw new InputError(`TVP column '${column.name}' has invalid data at row index ${rowIndex}`, { cause: error });\n    }\n\n    // TvpColumnData\n    column.type.writeValue(buffer, cell, options);\n  }\n}\n\n// Rows given as an array are written in a synchronous loop, so the only\n// asynchrony is the yield for every chunk's worth of rows.\nasync function * writeRows(buffer: WritableTrackingBuffer, value: TvpValue, rows: TvpRow[], collation: Collation | undefined, options: InternalConnectionOptions): AsyncGenerator<void, void> {\n  writeColumnMetadata(buffer, value, options);\n  const cells = cellsFor(value.columns);\n\n  for (let i = 0, len = rows.length; i < len; i++) {\n    writeRow(buffer, value.columns, cells, rows[i], i, collation, options);\n\n    if (buffer.length >= WritableTrackingBuffer.CHUNK_SIZE) {\n      yield;\n    }\n  }\n\n  buffer.writeBuffer(TVP_END_TOKEN);\n}\n\nasync function * writeRowsFrom(buffer: WritableTrackingBuffer, value: TvpValue, rows: AsyncIterable<TvpRow>, collation: Collation | undefined, options: InternalConnectionOptions): AsyncGenerator<void, void> {\n  writeColumnMetadata(buffer, value, options);\n  const cells = cellsFor(value.columns);\n\n  let rowIndex = 0;\n  for await (const row of rows) {\n    writeRow(buffer, value.columns, cells, row, rowIndex++, collation, options);\n\n    if (buffer.length >= WritableTrackingBuffer.CHUNK_SIZE) {\n      yield;\n    }\n  }\n\n  buffer.writeBuffer(TVP_END_TOKEN);\n}\n\nconst TVP: DataType = {\n  id: TVP_TYPE_ID,\n  type: 'TVPTYPE',\n  name: 'TVP',\n\n  declaration: function(parameter) {\n    const value = parameter.value as any; // Temporary solution. Remove 'any' later.\n    const schema = value.schema ? value.schema + '.' : '';\n    return schema + value.name + ' readonly';\n  },\n\n  validate(value) {\n    return validateTable(value);\n  },\n\n  resolve(parameter, collation) {\n    // A TVP's `writeValue` always returns the rest of the write, whether\n    // its rows are an array or an async iterable.\n    const data: ParameterData<TvpValue | null> = { value: validateTable(parameter.value) };\n    if (collation) {\n      data.collation = collation;\n    }\n\n    return data;\n  },\n\n  writeTypeInfo(buffer, parameter) {\n    writeTvpTypeInfo(buffer, parameter.value as TvpValue | null);\n  },\n\n  async * writeValue(buffer, parameter, options) {\n    const value = parameter.value as TvpValue | null;\n\n    if (value == null) {\n      buffer.writeBuffer(NULL_TABLE);\n      return;\n    }\n\n    if (Array.isArray(value.rows)) {\n      yield * writeRows(buffer, value, value.rows, parameter.collation, options);\n      return;\n    }\n\n    yield * writeRowsFrom(buffer, value, value.rows, parameter.collation, options);\n  }\n};\n\nexport default TVP;\nmodule.exports = TVP;\n"],"mappings":";;;;;;AAGA,IAAAA,OAAA,GAAAC,OAAA;AACA,IAAAC,uBAAA,GAAAC,sBAAA,CAAAF,OAAA;AACA,IAAAG,UAAA,GAAAH,OAAA;AAA+C,SAAAE,uBAAAE,CAAA,WAAAA,CAAA,IAAAA,CAAA,CAAAC,UAAA,GAAAD,CAAA,KAAAE,OAAA,EAAAF,CAAA;AAE/C,MAAMG,WAAW,GAAG,IAAI;AAExB,MAAMC,aAAa,GAAGC,MAAM,CAACC,IAAI,CAAC,CAAC,IAAI,CAAC,CAAC;AACzC,MAAMC,aAAa,GAAGF,MAAM,CAACC,IAAI,CAAC,CAAC,IAAI,CAAC,CAAC;;AAEzC;AACA;AACA,MAAME,UAAU,GAAGH,MAAM,CAACC,IAAI,CAAC,CAAC,IAAI,EAAE,IAAI,EAAE,IAAI,EAAE,IAAI,CAAC,CAAC;AAqBxD,SAASG,aAAaA,CAACC,KAAc,EAAmB;EACtD,IAAIA,KAAK,IAAI,IAAI,EAAE;IACjB,OAAO,IAAI;EACb;EAEA,IAAI,OAAOA,KAAK,KAAK,QAAQ,IAAI,CAACC,KAAK,CAACC,OAAO,CAAEF,KAAK,CAAcG,OAAO,CAAC,EAAE;IAC5E,MAAM,IAAIC,SAAS,CAAC,gBAAgB,CAAC;EACvC;EAEA,MAAMC,IAAI,GAAIL,KAAK,CAAcK,IAAI;EACrC,IAAI,CAACJ,KAAK,CAACC,OAAO,CAACG,IAAI,CAAC,IAAI,CAAC,IAAAC,0BAAe,EAACD,IAAI,CAAC,EAAE;IAClD,MAAM,IAAID,SAAS,CAAC,gBAAgB,CAAC;EACvC;EAEA,OAAOJ,KAAK;AACd;;AAEA;AACA;AACA,SAASO,QAAQA,CAACJ,OAAoB,EAAmB;EACvD,OAAOA,OAAO,CAACK,GAAG,CAAEC,MAAM,KAAM;IAAET,KAAK,EAAEU,SAAS;IAAEC,MAAM,EAAEF,MAAM,CAACE,MAAM;IAAEC,KAAK,EAAEH,MAAM,CAACG,KAAK;IAAEC,SAAS,EAAEJ,MAAM,CAACI;EAAU,CAAC,CAAC,CAAC;AACjI;AAEA,SAASC,gBAAgBA,CAACC,MAA8B,EAAEf,KAAsB,EAAE;EAChFe,MAAM,CAACC,UAAU,CAACvB,WAAW,CAAC;EAC9B;EACAsB,MAAM,CAACE,aAAa,CAAC,EAAE,EAAE,MAAM,CAAC;EAChC;EACAF,MAAM,CAACE,aAAa,CAACjB,KAAK,EAAEkB,MAAM,IAAI,EAAE,EAAE,MAAM,CAAC;EACjD;EACAH,MAAM,CAACE,aAAa,CAACjB,KAAK,EAAEmB,IAAI,IAAI,EAAE,EAAE,MAAM,CAAC;AACjD;;AAEA;AACA;AACA,SAASC,YAAYA,CAACL,MAA8B,EAAEZ,OAAoB,EAAEkB,OAAkC,EAAE;EAC9G,KAAK,IAAIC,CAAC,GAAG,CAAC,EAAEC,GAAG,GAAGpB,OAAO,CAACQ,MAAM,EAAEW,CAAC,GAAGC,GAAG,EAAED,CAAC,EAAE,EAAE;IAClD,MAAMb,MAAM,GAAGN,OAAO,CAACmB,CAAC,CAAC;;IAEzB;IACAP,MAAM,CAACS,aAAa,CAAC,UAAU,CAAC;IAChC;IACAT,MAAM,CAACU,aAAa,CAAC,MAAM,CAAC;IAC5B;IACAhB,MAAM,CAACiB,IAAI,CAACC,aAAa,CAACZ,MAAM,EAAE;MAAEf,KAAK,EAAEU,SAAS;MAAEC,MAAM,EAAEF,MAAM,CAACE,MAAM;MAAEE,SAAS,EAAEJ,MAAM,CAACI,SAAS;MAAED,KAAK,EAAEH,MAAM,CAACG;IAAM,CAAC,EAAES,OAAO,CAAC;IACzI;IACAN,MAAM,CAACC,UAAU,CAAC,IAAI,CAAC;EACzB;EAEAD,MAAM,CAACa,WAAW,CAAC/B,aAAa,CAAC;AACnC;AAEA,SAASgC,mBAAmBA,CAACd,MAA8B,EAAEf,KAAe,EAAEqB,OAAkC,EAAE;EAChHN,MAAM,CAACU,aAAa,CAACzB,KAAK,CAACG,OAAO,CAACQ,MAAM,CAAC;EAC1CS,YAAY,CAACL,MAAM,EAAEf,KAAK,CAACG,OAAO,EAAEkB,OAAO,CAAC;AAC9C;;AAEA;AACA;AACA;AACA,SAASS,QAAQA,CAACf,MAA8B,EAAEZ,OAAoB,EAAE4B,KAAsB,EAAEC,GAAW,EAAEC,QAAgB,EAAEC,SAAgC,EAAEb,OAAkC,EAAE;EACnM,IAAI,CAACpB,KAAK,CAACC,OAAO,CAAC8B,GAAG,CAAC,EAAE;IACvB,MAAM,IAAIG,kBAAU,CAAC,oBAAoBF,QAAQ,kBAAkB,CAAC;EACtE;;EAEA;EACA;EACA,IAAID,GAAG,CAACrB,MAAM,KAAKR,OAAO,CAACQ,MAAM,EAAE;IACjC,MAAM,IAAIwB,kBAAU,CAAC,oBAAoBF,QAAQ,QAAQD,GAAG,CAACrB,MAAM,kBAAkBR,OAAO,CAACQ,MAAM,yBAAyB,CAAC;EAC/H;EAEAI,MAAM,CAACa,WAAW,CAAClC,aAAa,CAAC;EAEjC,KAAK,IAAI0C,CAAC,GAAG,CAAC,EAAEb,GAAG,GAAGS,GAAG,CAACrB,MAAM,EAAEyB,CAAC,GAAGb,GAAG,EAAEa,CAAC,EAAE,EAAE;IAC9C,MAAM3B,MAAM,GAAGN,OAAO,CAACiC,CAAC,CAAC;IACzB,MAAMC,IAAI,GAAGN,KAAK,CAACK,CAAC,CAAC;IAErB,IAAI;MACFC,IAAI,CAACrC,KAAK,GAAGS,MAAM,CAACiB,IAAI,CAACY,QAAQ,CAACN,GAAG,CAACI,CAAC,CAAC,EAAEF,SAAS,CAAC;IACtD,CAAC,CAAC,OAAOK,KAAK,EAAE;MACd,MAAM,IAAIJ,kBAAU,CAAC,eAAe1B,MAAM,CAACU,IAAI,mCAAmCc,QAAQ,EAAE,EAAE;QAAEO,KAAK,EAAED;MAAM,CAAC,CAAC;IACjH;;IAEA;IACA9B,MAAM,CAACiB,IAAI,CAACe,UAAU,CAAC1B,MAAM,EAAEsB,IAAI,EAAEhB,OAAO,CAAC;EAC/C;AACF;;AAEA;AACA;AACA,gBAAiBqB,SAASA,CAAC3B,MAA8B,EAAEf,KAAe,EAAEK,IAAc,EAAE6B,SAAgC,EAAEb,OAAkC,EAA8B;EAC5LQ,mBAAmB,CAACd,MAAM,EAAEf,KAAK,EAAEqB,OAAO,CAAC;EAC3C,MAAMU,KAAK,GAAGxB,QAAQ,CAACP,KAAK,CAACG,OAAO,CAAC;EAErC,KAAK,IAAImB,CAAC,GAAG,CAAC,EAAEC,GAAG,GAAGlB,IAAI,CAACM,MAAM,EAAEW,CAAC,GAAGC,GAAG,EAAED,CAAC,EAAE,EAAE;IAC/CQ,QAAQ,CAACf,MAAM,EAAEf,KAAK,CAACG,OAAO,EAAE4B,KAAK,EAAE1B,IAAI,CAACiB,CAAC,CAAC,EAAEA,CAAC,EAAEY,SAAS,EAAEb,OAAO,CAAC;IAEtE,IAAIN,MAAM,CAACJ,MAAM,IAAIgC,+BAAsB,CAACC,UAAU,EAAE;MACtD,KAAK;IACP;EACF;EAEA7B,MAAM,CAACa,WAAW,CAAC/B,aAAa,CAAC;AACnC;AAEA,gBAAiBgD,aAAaA,CAAC9B,MAA8B,EAAEf,KAAe,EAAEK,IAA2B,EAAE6B,SAAgC,EAAEb,OAAkC,EAA8B;EAC7MQ,mBAAmB,CAACd,MAAM,EAAEf,KAAK,EAAEqB,OAAO,CAAC;EAC3C,MAAMU,KAAK,GAAGxB,QAAQ,CAACP,KAAK,CAACG,OAAO,CAAC;EAErC,IAAI8B,QAAQ,GAAG,CAAC;EAChB,WAAW,MAAMD,GAAG,IAAI3B,IAAI,EAAE;IAC5ByB,QAAQ,CAACf,MAAM,EAAEf,KAAK,CAACG,OAAO,EAAE4B,KAAK,EAAEC,GAAG,EAAEC,QAAQ,EAAE,EAAEC,SAAS,EAAEb,OAAO,CAAC;IAE3E,IAAIN,MAAM,CAACJ,MAAM,IAAIgC,+BAAsB,CAACC,UAAU,EAAE;MACtD,KAAK;IACP;EACF;EAEA7B,MAAM,CAACa,WAAW,CAAC/B,aAAa,CAAC;AACnC;AAEA,MAAMiD,GAAa,GAAG;EACpBC,EAAE,EAAEtD,WAAW;EACfiC,IAAI,EAAE,SAAS;EACfP,IAAI,EAAE,KAAK;EAEX6B,WAAW,EAAE,SAAAA,CAASC,SAAS,EAAE;IAC/B,MAAMjD,KAAK,GAAGiD,SAAS,CAACjD,KAAY,CAAC,CAAC;IACtC,MAAMkB,MAAM,GAAGlB,KAAK,CAACkB,MAAM,GAAGlB,KAAK,CAACkB,MAAM,GAAG,GAAG,GAAG,EAAE;IACrD,OAAOA,MAAM,GAAGlB,KAAK,CAACmB,IAAI,GAAG,WAAW;EAC1C,CAAC;EAEDmB,QAAQA,CAACtC,KAAK,EAAE;IACd,OAAOD,aAAa,CAACC,KAAK,CAAC;EAC7B,CAAC;EAEDkD,OAAOA,CAACD,SAAS,EAAEf,SAAS,EAAE;IAC5B;IACA;IACA,MAAMiB,IAAoC,GAAG;MAAEnD,KAAK,EAAED,aAAa,CAACkD,SAAS,CAACjD,KAAK;IAAE,CAAC;IACtF,IAAIkC,SAAS,EAAE;MACbiB,IAAI,CAACjB,SAAS,GAAGA,SAAS;IAC5B;IAEA,OAAOiB,IAAI;EACb,CAAC;EAEDxB,aAAaA,CAACZ,MAAM,EAAEkC,SAAS,EAAE;IAC/BnC,gBAAgB,CAACC,MAAM,EAAEkC,SAAS,CAACjD,KAAwB,CAAC;EAC9D,CAAC;EAED,OAAQyC,UAAUA,CAAC1B,MAAM,EAAEkC,SAAS,EAAE5B,OAAO,EAAE;IAC7C,MAAMrB,KAAK,GAAGiD,SAAS,CAACjD,KAAwB;IAEhD,IAAIA,KAAK,IAAI,IAAI,EAAE;MACjBe,MAAM,CAACa,WAAW,CAAC9B,UAAU,CAAC;MAC9B;IACF;IAEA,IAAIG,KAAK,CAACC,OAAO,CAACF,KAAK,CAACK,IAAI,CAAC,EAAE;MAC7B,OAAQqC,SAAS,CAAC3B,MAAM,EAAEf,KAAK,EAAEA,KAAK,CAACK,IAAI,EAAE4C,SAAS,CAACf,SAAS,EAAEb,OAAO,CAAC;MAC1E;IACF;IAEA,OAAQwB,aAAa,CAAC9B,MAAM,EAAEf,KAAK,EAAEA,KAAK,CAACK,IAAI,EAAE4C,SAAS,CAACf,SAAS,EAAEb,OAAO,CAAC;EAChF;AACF,CAAC;AAAC,IAAA+B,QAAA,GAAAC,OAAA,CAAA7D,OAAA,GAEasD,GAAG;AAClBQ,MAAM,CAACD,OAAO,GAAGP,GAAG","ignoreList":[]}