vscode-languageserver-protocol/lib/common/utils/is.js

VSCode Language Server Protocol implementation

/* --------------------------------------------------------------------------------------------
 * Copyright (c) Microsoft Corporation. All rights reserved.
 * Licensed under the MIT License. See License.txt in the project root for license information.
 * ------------------------------------------------------------------------------------------ */
'use strict';
Object.defineProperty(exports, "__esModule", { value: true });
exports.boolean = boolean;
exports.string = string;
exports.number = number;
exports.error = error;
exports.func = func;
exports.array = array;
exports.stringArray = stringArray;
exports.typedArray = typedArray;
exports.objectLiteral = objectLiteral;
function boolean(value) {
    return value === true || value === false;
}
function string(value) {
    return typeof value === 'string' || value instanceof String;
}
function number(value) {
    return typeof value === 'number' || value instanceof Number;
}
function error(value) {
    return value instanceof Error;
}
function func(value) {
    return typeof value === 'function';
}
function array(value) {
    return Array.isArray(value);
}
function stringArray(value) {
    return array(value) && value.every(elem => string(elem));
}
function typedArray(value, check) {
    return Array.isArray(value) && value.every(check);
}
function objectLiteral(value) {
    // Strictly speaking class instances pass this check as well. Since the LSP
    // doesn't use classes we ignore this for now. If we do we need to add something
    // like this: `Object.getPrototypeOf(Object.getPrototypeOf(x)) === null`
    return value !== null && typeof value === 'object';
}