convert to typescript

This commit is contained in:
Moon Man 2024-01-28 06:11:35 -05:00
parent 0cdadb6df2
commit 308c2a323c
7 changed files with 3828 additions and 0 deletions

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.eslintrc.json Normal file
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{
"extends": [
"eslint:recommended",
"plugin:@typescript-eslint/recommended",
"prettier",
"plugin:prettier/recommended"
],
"parser": "@typescript-eslint/parser",
"plugins": ["@typescript-eslint"],
"root": true
}

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node_modules
dist

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package-lock.json generated Normal file

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package.json Normal file
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{
"name": "noderl",
"version": "1.0.0",
"type": "module",
"description": "",
"main": "./dist/main.js",
"types": "./dist/main.d.ts",
"scripts": {
"test": "echo \"Error: no test specified\" && exit 1"
},
"author": "",
"license": "ISC",
"files": [
"dist/**"
],
"devDependencies": {
"@types/node": "^20.11.8",
"@typescript-eslint/eslint-plugin": "^6.19.1",
"@typescript-eslint/parser": "^6.19.1",
"eslint": "^8.56.0",
"eslint-config-prettier": "^9.1.0",
"eslint-config-standard": "^17.1.0",
"eslint-plugin-import": "^2.29.1",
"eslint-plugin-n": "^16.6.2",
"eslint-plugin-prettier": "^5.1.3",
"eslint-plugin-promise": "^6.1.1",
"prettier": "^3.2.4",
"typescript": "^5.3.3"
}
}

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src/bert.ts Normal file
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export const Types = {
BERT_START: 131,
SMALL_ATOM: 115,
ATOM: 100,
BINARY: 109,
SMALL_INTEGER: 97,
INTEGER: 98,
SMALL_BIG: 110,
LARGE_BIG: 111,
FLOAT: 99,
STRING: 107,
LIST: 108,
SMALL_TUPLE: 104,
LARGE_TUPLE: 105, // TODO: Implement.
MAP: 116,
NIL: 106,
NEW_FLOAT: 70,
ZERO: 0,
};
export const Lang = {
ELIXIR: 0,
ERLANG: 1,
};
export class Bert {
private allBinariesAsString;
private mapKeyAsAtom;
private decodeUndefinedValues;
private convention;
private outputBuffer;
constructor(
allBinariesAsString = false,
mapKeyAsAtom = true,
decodeUndefinedValues = true,
convention = Lang.ELIXIR,
) {
this.allBinariesAsString = allBinariesAsString;
this.mapKeyAsAtom = mapKeyAsAtom;
this.decodeUndefinedValues = decodeUndefinedValues;
this.convention = convention;
this.outputBuffer = Buffer.alloc(10000000);
this.outputBuffer[0] = Types.BERT_START;
}
toAtom = toAtom;
toTuple = toTuple;
#encode = (obj: any, buffer: Buffer) =>
(this as any)[`encode_${typeof obj}`](obj, buffer);
encode = (obj: any, noCopy = false) => {
const tailBuffer = this.#encode(obj, Buffer.from(this.outputBuffer, 1));
if (tailBuffer.length === 0) {
throw new Error("Bert encode a too big term, encoding buffer overflow");
} else if (noCopy) {
return Buffer.from(
this.outputBuffer,
0,
this.outputBuffer.length - tailBuffer.length,
);
} else {
const res = Buffer.alloc(this.outputBuffer.length - tailBuffer.length);
this.outputBuffer.copy(res, 0, 0, res.length);
return res;
}
};
#decode = (buffer: Buffer): any => {
const t = buffer[0];
buffer = Buffer.from(buffer, 1);
switch (t) {
case Types.SMALL_ATOM:
return this.decode_atom(buffer, 1);
case Types.ATOM:
return this.decode_atom(buffer, 2);
case Types.BINARY:
return this.decode_binary(buffer);
case Types.SMALL_INTEGER:
return this.decode_integer(buffer, 1, true);
case Types.INTEGER:
return this.decode_integer(buffer, 4);
case Types.SMALL_BIG:
return this.decode_big(buffer, 1);
case Types.LARGE_BIG:
return this.decode_big(buffer, 4);
case Types.FLOAT:
return this.decode_float(buffer);
case Types.NEW_FLOAT:
return this.decode_new_float(buffer);
case Types.STRING:
return this.decode_string(buffer);
case Types.LIST:
return this.decode_list(buffer);
case Types.SMALL_TUPLE:
return this.decode_tuple(buffer, 1);
// case Types.LARGE_TUPLE:
// return this.decode_large_tuple(buffer, 4)
case Types.NIL:
return this.decode_nil(buffer);
case Types.MAP:
return this.decode_map(buffer);
default:
throw new Error(`Unexpected BERT type: ${t}`);
}
};
decode = (buffer: Buffer) => {
if (buffer[0] !== Types.BERT_START) {
throw new Error("Not a valid BERT");
}
const obj = this.#decode(Buffer.from(buffer, 1));
if (obj.rest.length !== 0) {
throw new Error("Invalid BERT");
}
return obj.value;
};
encode_string = (obj: string, buffer: Buffer) => {
if (this.convention === Lang.ELIXIR) {
return this.encode_binary(Buffer.from(obj), buffer);
} else {
buffer[0] = Types.STRING;
buffer.writeUInt16BE(obj.length, 1);
const len = buffer.write(obj, 3);
return Buffer.from(buffer, 3 + len);
}
};
encode_boolean = (obj: boolean, buffer: Buffer) => {
if (obj) {
return this.#encode(this.toAtom("true"), buffer);
} else {
return this.#encode(this.toAtom("false"), buffer);
}
};
encode_number = (obj: number, buffer: Buffer) => {
const isInteger = obj % 1 === 0;
// Handle floats...
if (!isInteger) {
return this.encode_float(obj, buffer);
}
// Small int...
if (isInteger && obj >= 0 && obj < 256) {
buffer[0] = Types.SMALL_INTEGER;
buffer.writeUInt8(obj, 1);
return Buffer.from(buffer, 2);
}
// 4 byte int...
if (isInteger && obj >= -134217728 && obj <= 134217727) {
buffer[0] = Types.INTEGER;
buffer.writeInt32BE(obj, 1);
return Buffer.from(buffer, 5);
}
// Bignum...
const numBuffer = Buffer.alloc(buffer.length);
if (obj < 0) {
obj *= -1;
numBuffer[0] = 1;
} else {
numBuffer[0] = 0;
}
let offset = 1;
while (obj !== 0) {
numBuffer[offset] = obj % 256;
obj = Math.floor(obj / 256);
offset++;
}
if (offset < 256) {
buffer[0] = Types.SMALL_BIG;
buffer.writeUInt8(offset - 1, 1);
numBuffer.copy(buffer, 2, 0, offset);
return Buffer.from(buffer, 2 + offset);
} else {
buffer[0] = Types.LARGE_BIG;
buffer.writeUInt32BE(offset - 1, 1);
numBuffer.copy(buffer, 5, 0, offset);
return Buffer.from(buffer, 5 + offset);
}
};
encode_float = (obj: number, buffer: Buffer) => {
// float...
buffer[0] = Types.NEW_FLOAT;
buffer.writeDoubleBE(obj, 1);
return Buffer.from(buffer, 9);
};
encode_object = (obj: any, buffer: Buffer) => {
// Check if it's an atom, binary, or tuple...
if (obj === null) {
const undefinedAtom =
this.convention === Lang.ELIXIR ? "nil" : "undefined";
return this.#encode(this.toAtom(undefinedAtom), buffer);
}
if (Buffer.isBuffer(obj)) {
return this.encode_binary(obj, buffer);
}
if (Array.isArray(obj)) {
return this.encode_array(obj, buffer);
}
if (obj.type === "Atom") {
return this.encode_atom(obj, buffer);
}
if (obj.type === "Tuple") {
return this.encode_tuple(obj, buffer);
}
// Treat the object as an associative array...
return this.encode_map(obj, buffer);
};
encode_atom = (obj: any, buffer: Buffer) => {
buffer[0] = Types.ATOM;
buffer.writeUInt16BE(obj.value.length, 1);
const len = buffer.write(obj.value, 3);
return Buffer.from(buffer, 3 + len);
};
encode_binary = (obj: Buffer, buffer: Buffer) => {
buffer[0] = Types.BINARY;
buffer.writeUInt32BE(obj.length, 1);
obj.copy(buffer, 5);
return Buffer.from(buffer, 5 + obj.length);
};
encode_undefined = (_obj: Buffer, buffer: Buffer) => {
return this.#encode(null, buffer);
};
encode_tuple = (obj: Buffer, buffer: Buffer) => {
if (obj.length < 256) {
buffer[0] = Types.SMALL_TUPLE;
buffer.writeUInt8(obj.length, 1);
buffer = Buffer.from(buffer, 2);
} else {
buffer[0] = Types.LARGE_TUPLE;
buffer.writeUInt32BE(obj.length, 1);
buffer = buffer.slice(5);
}
for (let i = 0; i < obj.length; ++i) {
buffer = this.#encode(obj[i], buffer);
}
return buffer;
};
encode_array = (obj: any[], buffer: Buffer) => {
if (obj.length === 0) {
buffer[0] = Types.NIL;
return Buffer.from(buffer, 1);
}
buffer[0] = Types.LIST;
buffer.writeUInt32BE(obj.length, 1);
buffer = Buffer.from(buffer, 5);
for (let i = 0; i < obj.length; ++i) {
buffer = this.#encode(obj[i], buffer);
}
buffer[0] = Types.NIL;
return Buffer.from(buffer, 1);
};
encode_map = (obj: Record<string, any>, buffer: Buffer) => {
const keys = Object.keys(obj);
buffer[0] = Types.MAP;
buffer.writeUInt32BE(keys.length, 1);
buffer = Buffer.from(buffer, 5);
for (let i = 0; i < keys.length; ++i) {
const key = this.mapKeyAsAtom ? this.toAtom(keys[i]) : keys[i];
buffer = this.#encode(key, buffer);
buffer = this.#encode(obj[keys[i]], buffer);
}
return buffer;
};
decode_atom = (buffer: Buffer, count: 1 | 2 | 4) => {
const size = this.bytesToInt(buffer, count, true);
buffer = Buffer.from(buffer, count);
let value: any = buffer.toString("utf8", 0, size);
if (value === "true") {
value = true;
} else if (value === "false") {
value = false;
} else if (
this.decodeUndefinedValues &&
this.convention === Lang.ELIXIR &&
value === "nil"
) {
value = null;
} else if (
this.decodeUndefinedValues &&
this.convention === Lang.ERLANG &&
value === "undefined"
) {
value = null;
} else {
value = this.toAtom(value);
}
return {
value,
rest: Buffer.from(buffer, size),
};
};
decode_binary = (buffer: Buffer) => {
const size = this.bytesToInt(buffer, 4, true);
buffer = Buffer.from(buffer, 4);
const bin = Buffer.alloc(size);
buffer.copy(bin, 0, 0, size);
return {
value:
this.convention === Lang.ELIXIR && this.allBinariesAsString
? bin.toString()
: bin,
rest: Buffer.from(buffer, size),
};
};
decode_integer = (buffer: Buffer, count: 1 | 2 | 4, unsigned = false) => {
return {
value: this.bytesToInt(buffer, count, unsigned),
rest: Buffer.from(buffer, count),
};
};
decode_big = (buffer: Buffer, count: 1 | 2 | 4) => {
const size = this.bytesToInt(buffer, count, false);
buffer = Buffer.from(buffer, count);
let num = 0;
const isNegative = buffer[0] === 1;
buffer = Buffer.from(buffer, 1);
for (let i = size - 1; i >= 0; --i) {
const n = buffer[i];
if (num === 0) {
num = n;
} else {
num = num * 256 + n;
}
}
if (isNegative) {
num = num * -1;
}
return {
value: num,
rest: Buffer.from(buffer, size),
};
};
decode_float = (buffer: Buffer) => {
const size = 31;
return {
value: parseFloat(buffer.toString("utf8", 0, size)),
rest: Buffer.from(buffer, size),
};
};
decode_new_float = (buffer: Buffer) => {
return {
value: buffer.readDoubleBE(0),
rest: Buffer.from(buffer, 8),
};
};
decode_string = (buffer: Buffer) => {
const size = this.bytesToInt(buffer, 2, true);
buffer = Buffer.from(buffer, 2);
return {
value: buffer.toString("utf8", 0, size),
rest: Buffer.from(buffer, size),
};
};
decode_list = (buffer: Buffer) => {
const arr = [];
const size = this.bytesToInt(buffer, 4, true);
buffer = Buffer.from(buffer, 4);
for (let i = 0; i < size; ++i) {
const el = this.#decode(buffer);
arr.push(el.value);
buffer = el.rest;
}
const lastChar = buffer[0];
if (lastChar !== Types.NIL) {
throw new Error("List does not end with NIL");
}
buffer = Buffer.from(buffer, 1);
return {
value: arr,
rest: buffer,
};
};
decode_map = (buffer: Buffer) => {
const map: Record<string, any> = {};
const size = this.bytesToInt(buffer, 4, true);
buffer = Buffer.from(buffer, 4);
for (let i = 0; i < size; ++i) {
let el = this.#decode(buffer);
const key = el.value;
el = this.#decode(el.rest);
const value = el.value;
map[key] = value;
buffer = el.rest;
}
return {
value: map,
rest: buffer,
};
};
decode_tuple = (buffer: Buffer, count: 1 | 2 | 4) => {
const arr = [];
const size = this.bytesToInt(buffer, count, true);
buffer = Buffer.from(buffer, count);
for (let i = 0; i < size; ++i) {
const el = this.#decode(buffer);
arr.push(el.value);
buffer = el.rest;
}
return {
value: this.toTuple(arr),
rest: buffer,
};
};
decode_nil = (buffer: Buffer) => {
// nil is an empty list
return {
value: [],
rest: buffer,
};
};
bytesToInt = (buffer: Buffer, length: 1 | 2 | 4, unsigned: boolean) => {
switch (length) {
case 1:
return unsigned ? buffer.readUInt8(0) : buffer.readInt8(0);
case 2:
return unsigned ? buffer.readUInt16BE(0) : buffer.readInt16BE(0);
case 4:
return unsigned ? buffer.readUInt32BE(0) : buffer.readInt32BE(0);
}
};
binary_to_list = (str: string) => {
const ret = [];
for (let i = 0; i < str.length; ++i) ret.push(str[i]);
return ret;
};
}
/**
* Convert object to atom.
*
*/
export const toAtom = (str: string) => ({
type: "Atom",
value: str,
toString: () => str,
});
/**
* Convert array of items to tuple.
*
*/
export const toTuple = (arr: any[]) => ({
...arr,
type: "Tuple",
length: arr.length,
value: arr,
toString: () =>
"{" +
arr
.filter((i) => i !== "")
.map((i) => i.toString())
.join(", ") +
"}",
});

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import { Bert } from "./bert.js";
import { Duplex } from "node:stream";
const bert = new Bert();
let termLen: number | undefined;
let termBin: Buffer;
const fakeWrite = () => undefined;
process.stdout.write = fakeWrite as any;
class Port extends Duplex {
constructor() {
super({ objectMode: true });
}
_read() {
{
let term;
if (termLen === undefined && null !== (termBin = process.stdin.read(4))) {
termLen = bert.bytesToInt(termBin, 4, true);
}
if (
termLen !== undefined &&
null !== (term = process.stdin.read(termLen))
) {
termLen = undefined;
this.push(bert.decode(term));
}
}
}
_write(obj: Buffer, _encoding: any, callback: Function) {
let term: Buffer;
try {
term = bert.encode(obj, true);
} catch (error) {
console.error(error);
process.exit(1);
}
const len = Buffer.alloc(4);
len.writeUInt32BE(term.length, 0);
process.stdout.write = this._write as any;
process.stdout.write(len);
process.stdout.write(term, callback as any);
process.stdout.write = fakeWrite as any;
}
// When all the data is done passing, it stops.
_final() {
this.push(null);
}
}
export const port = new Port();

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tsconfig.json Normal file
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{
"compilerOptions": {
/* Visit https://aka.ms/tsconfig to read more about this file */
/* Projects */
// "incremental": true, /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
// "composite": true, /* Enable constraints that allow a TypeScript project to be used with project references. */
// "tsBuildInfoFile": "./.tsbuildinfo", /* Specify the path to .tsbuildinfo incremental compilation file. */
// "disableSourceOfProjectReferenceRedirect": true, /* Disable preferring source files instead of declaration files when referencing composite projects. */
// "disableSolutionSearching": true, /* Opt a project out of multi-project reference checking when editing. */
// "disableReferencedProjectLoad": true, /* Reduce the number of projects loaded automatically by TypeScript. */
/* Language and Environment */
"target": "ESNext", /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */
// "lib": [], /* Specify a set of bundled library declaration files that describe the target runtime environment. */
// "jsx": "preserve", /* Specify what JSX code is generated. */
// "experimentalDecorators": true, /* Enable experimental support for legacy experimental decorators. */
// "emitDecoratorMetadata": true, /* Emit design-type metadata for decorated declarations in source files. */
// "jsxFactory": "", /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
// "jsxFragmentFactory": "", /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
// "jsxImportSource": "", /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
// "reactNamespace": "", /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
// "noLib": true, /* Disable including any library files, including the default lib.d.ts. */
// "useDefineForClassFields": true, /* Emit ECMAScript-standard-compliant class fields. */
// "moduleDetection": "auto", /* Control what method is used to detect module-format JS files. */
/* Modules */
"module": "ESNext", /* Specify what module code is generated. */
"rootDir": "./src", /* Specify the root folder within your source files. */
"moduleResolution": "node", /* Specify how TypeScript looks up a file from a given module specifier. */
// "baseUrl": "./", /* Specify the base directory to resolve non-relative module names. */
// "paths": {}, /* Specify a set of entries that re-map imports to additional lookup locations. */
// "rootDirs": [], /* Allow multiple folders to be treated as one when resolving modules. */
// "typeRoots": [], /* Specify multiple folders that act like './node_modules/@types'. */
// "types": [], /* Specify type package names to be included without being referenced in a source file. */
// "allowUmdGlobalAccess": true, /* Allow accessing UMD globals from modules. */
// "moduleSuffixes": [], /* List of file name suffixes to search when resolving a module. */
// "allowImportingTsExtensions": true, /* Allow imports to include TypeScript file extensions. Requires '--moduleResolution bundler' and either '--noEmit' or '--emitDeclarationOnly' to be set. */
// "resolvePackageJsonExports": true, /* Use the package.json 'exports' field when resolving package imports. */
// "resolvePackageJsonImports": true, /* Use the package.json 'imports' field when resolving imports. */
// "customConditions": [], /* Conditions to set in addition to the resolver-specific defaults when resolving imports. */
// "resolveJsonModule": true, /* Enable importing .json files. */
// "allowArbitraryExtensions": true, /* Enable importing files with any extension, provided a declaration file is present. */
// "noResolve": true, /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
/* JavaScript Support */
// "allowJs": true, /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
// "checkJs": true, /* Enable error reporting in type-checked JavaScript files. */
// "maxNodeModuleJsDepth": 1, /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
/* Emit */
"declaration": true, /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
// "declarationMap": true, /* Create sourcemaps for d.ts files. */
// "emitDeclarationOnly": true, /* Only output d.ts files and not JavaScript files. */
// "sourceMap": true, /* Create source map files for emitted JavaScript files. */
// "inlineSourceMap": true, /* Include sourcemap files inside the emitted JavaScript. */
// "outFile": "./", /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
"outDir": "./dist", /* Specify an output folder for all emitted files. */
// "removeComments": true, /* Disable emitting comments. */
// "noEmit": true, /* Disable emitting files from a compilation. */
// "importHelpers": true, /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
// "importsNotUsedAsValues": "remove", /* Specify emit/checking behavior for imports that are only used for types. */
// "downlevelIteration": true, /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
// "sourceRoot": "", /* Specify the root path for debuggers to find the reference source code. */
// "mapRoot": "", /* Specify the location where debugger should locate map files instead of generated locations. */
// "inlineSources": true, /* Include source code in the sourcemaps inside the emitted JavaScript. */
// "emitBOM": true, /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
// "newLine": "crlf", /* Set the newline character for emitting files. */
// "stripInternal": true, /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
// "noEmitHelpers": true, /* Disable generating custom helper functions like '__extends' in compiled output. */
// "noEmitOnError": true, /* Disable emitting files if any type checking errors are reported. */
// "preserveConstEnums": true, /* Disable erasing 'const enum' declarations in generated code. */
// "declarationDir": "./", /* Specify the output directory for generated declaration files. */
// "preserveValueImports": true, /* Preserve unused imported values in the JavaScript output that would otherwise be removed. */
/* Interop Constraints */
// "isolatedModules": true, /* Ensure that each file can be safely transpiled without relying on other imports. */
// "verbatimModuleSyntax": true, /* Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. */
// "allowSyntheticDefaultImports": true, /* Allow 'import x from y' when a module doesn't have a default export. */
"esModuleInterop": true, /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */
// "preserveSymlinks": true, /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
"forceConsistentCasingInFileNames": true, /* Ensure that casing is correct in imports. */
/* Type Checking */
"strict": true, /* Enable all strict type-checking options. */
// "noImplicitAny": true, /* Enable error reporting for expressions and declarations with an implied 'any' type. */
// "strictNullChecks": true, /* When type checking, take into account 'null' and 'undefined'. */
// "strictFunctionTypes": true, /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
// "strictBindCallApply": true, /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
// "strictPropertyInitialization": true, /* Check for class properties that are declared but not set in the constructor. */
// "noImplicitThis": true, /* Enable error reporting when 'this' is given the type 'any'. */
// "useUnknownInCatchVariables": true, /* Default catch clause variables as 'unknown' instead of 'any'. */
// "alwaysStrict": true, /* Ensure 'use strict' is always emitted. */
// "noUnusedLocals": true, /* Enable error reporting when local variables aren't read. */
// "noUnusedParameters": true, /* Raise an error when a function parameter isn't read. */
// "exactOptionalPropertyTypes": true, /* Interpret optional property types as written, rather than adding 'undefined'. */
// "noImplicitReturns": true, /* Enable error reporting for codepaths that do not explicitly return in a function. */
// "noFallthroughCasesInSwitch": true, /* Enable error reporting for fallthrough cases in switch statements. */
// "noUncheckedIndexedAccess": true, /* Add 'undefined' to a type when accessed using an index. */
// "noImplicitOverride": true, /* Ensure overriding members in derived classes are marked with an override modifier. */
// "noPropertyAccessFromIndexSignature": true, /* Enforces using indexed accessors for keys declared using an indexed type. */
// "allowUnusedLabels": true, /* Disable error reporting for unused labels. */
// "allowUnreachableCode": true, /* Disable error reporting for unreachable code. */
/* Completeness */
// "skipDefaultLibCheck": true, /* Skip type checking .d.ts files that are included with TypeScript. */
"skipLibCheck": true /* Skip type checking all .d.ts files. */
}
}