node-fs-compat.js•3.65 kB
'use strict';
const assert = require('assert');
const { inspect } = require('util');
// Only use this for integers! Decimal numbers do not work with this function.
function addNumericalSeparator(val) {
let res = '';
let i = val.length;
const start = val[0] === '-' ? 1 : 0;
for (; i >= start + 4; i -= 3)
res = `_${val.slice(i - 3, i)}${res}`;
return `${val.slice(0, i)}${res}`;
}
function oneOf(expected, thing) {
assert(typeof thing === 'string', '`thing` has to be of type string');
if (Array.isArray(expected)) {
const len = expected.length;
assert(len > 0, 'At least one expected value needs to be specified');
expected = expected.map((i) => String(i));
if (len > 2) {
return `one of ${thing} ${expected.slice(0, len - 1).join(', ')}, or `
+ expected[len - 1];
} else if (len === 2) {
return `one of ${thing} ${expected[0]} or ${expected[1]}`;
}
return `of ${thing} ${expected[0]}`;
}
return `of ${thing} ${String(expected)}`;
}
exports.ERR_INTERNAL_ASSERTION = class ERR_INTERNAL_ASSERTION extends Error {
constructor(message) {
super();
Error.captureStackTrace(this, ERR_INTERNAL_ASSERTION);
const suffix = 'This is caused by either a bug in ssh2 '
+ 'or incorrect usage of ssh2 internals.\n'
+ 'Please open an issue with this stack trace at '
+ 'https://github.com/mscdex/ssh2/issues\n';
this.message = (message === undefined ? suffix : `${message}\n${suffix}`);
}
};
const MAX_32BIT_INT = 2 ** 32;
const MAX_32BIT_BIGINT = (() => {
try {
return new Function('return 2n ** 32n')();
} catch {}
})();
exports.ERR_OUT_OF_RANGE = class ERR_OUT_OF_RANGE extends RangeError {
constructor(str, range, input, replaceDefaultBoolean) {
super();
Error.captureStackTrace(this, ERR_OUT_OF_RANGE);
assert(range, 'Missing "range" argument');
let msg = (replaceDefaultBoolean
? str
: `The value of "${str}" is out of range.`);
let received;
if (Number.isInteger(input) && Math.abs(input) > MAX_32BIT_INT) {
received = addNumericalSeparator(String(input));
} else if (typeof input === 'bigint') {
received = String(input);
if (input > MAX_32BIT_BIGINT || input < -MAX_32BIT_BIGINT)
received = addNumericalSeparator(received);
received += 'n';
} else {
received = inspect(input);
}
msg += ` It must be ${range}. Received ${received}`;
this.message = msg;
}
};
class ERR_INVALID_ARG_TYPE extends TypeError {
constructor(name, expected, actual) {
super();
Error.captureStackTrace(this, ERR_INVALID_ARG_TYPE);
assert(typeof name === 'string', `'name' must be a string`);
// determiner: 'must be' or 'must not be'
let determiner;
if (typeof expected === 'string' && expected.startsWith('not ')) {
determiner = 'must not be';
expected = expected.replace(/^not /, '');
} else {
determiner = 'must be';
}
let msg;
if (name.endsWith(' argument')) {
// For cases like 'first argument'
msg = `The ${name} ${determiner} ${oneOf(expected, 'type')}`;
} else {
const type = (name.includes('.') ? 'property' : 'argument');
msg = `The "${name}" ${type} ${determiner} ${oneOf(expected, 'type')}`;
}
msg += `. Received type ${typeof actual}`;
this.message = msg;
}
}
exports.ERR_INVALID_ARG_TYPE = ERR_INVALID_ARG_TYPE;
exports.validateNumber = function validateNumber(value, name) {
if (typeof value !== 'number')
throw new ERR_INVALID_ARG_TYPE(name, 'number', value);
};