"use strict";
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/**
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* @license
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* Copyright 2018 Palantir Technologies, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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Object.defineProperty(exports, "__esModule", { value: true });
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var fs = require("fs");
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var resolve = require("resolve");
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var ts = require("typescript");
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/**
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* Enforces the invariant that the input is an array.
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*/
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function arrayify(arg) {
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if (Array.isArray(arg)) {
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return arg;
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}
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else if (arg != undefined) {
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return [arg];
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}
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else {
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return [];
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}
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}
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exports.arrayify = arrayify;
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/**
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* @deprecated (no longer used)
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* Enforces the invariant that the input is an object.
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*/
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function objectify(arg) {
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if (typeof arg === "object" && arg != undefined) {
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return arg;
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}
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else {
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return {};
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}
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}
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exports.objectify = objectify;
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function hasOwnProperty(arg, key) {
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return Object.prototype.hasOwnProperty.call(arg, key);
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}
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exports.hasOwnProperty = hasOwnProperty;
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/**
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* Replace hyphens in a rule name by upper-casing the letter after them.
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* E.g. "foo-bar" -> "fooBar"
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*/
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function camelize(stringWithHyphens) {
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return stringWithHyphens.replace(/-(.)/g, function (_, nextLetter) {
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return nextLetter.toUpperCase();
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});
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}
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exports.camelize = camelize;
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function isUpperCase(str) {
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return str === str.toUpperCase();
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}
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exports.isUpperCase = isUpperCase;
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function isLowerCase(str) {
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return str === str.toLowerCase();
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}
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exports.isLowerCase = isLowerCase;
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/**
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* Removes leading indents from a template string without removing all leading whitespace
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*/
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function dedent(strings) {
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var values = [];
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for (var _i = 1; _i < arguments.length; _i++) {
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values[_i - 1] = arguments[_i];
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}
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var fullString = strings.reduce(function (accumulator, str, i) { return "" + accumulator + values[i - 1] + str; });
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// match all leading spaces/tabs at the start of each line
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var match = fullString.match(/^[ \t]*(?=\S)/gm);
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if (match === null) {
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// e.g. if the string is empty or all whitespace.
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return fullString;
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}
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// find the smallest indent, we don't want to remove all leading whitespace
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var indent = Math.min.apply(Math, match.map(function (el) { return el.length; }));
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var regexp = new RegExp("^[ \\t]{" + indent + "}", "gm");
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fullString = indent > 0 ? fullString.replace(regexp, "") : fullString;
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return fullString;
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}
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exports.dedent = dedent;
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/**
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* Strip comments from file content.
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*/
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function stripComments(content) {
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/**
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* First capturing group matches double quoted string
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* Second matches single quotes string
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* Third matches block comments
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* Fourth matches line comments
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*/
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var regexp = /("(?:[^\\\"]*(?:\\.)?)*")|('(?:[^\\\']*(?:\\.)?)*')|(\/\*(?:\r?\n|.)*?\*\/)|(\/{2,}.*?(?:(?:\r?\n)|$))/g;
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var result = content.replace(regexp, function (match, _m1, _m2, m3, m4) {
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// Only one of m1, m2, m3, m4 matches
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if (m3 !== undefined) {
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// A block comment. Replace with nothing
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return "";
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}
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else if (m4 !== undefined) {
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// A line comment. If it ends in \r?\n then keep it.
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var length = m4.length;
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if (length > 2 && m4[length - 1] === "\n") {
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return m4[length - 2] === "\r" ? "\r\n" : "\n";
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}
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else {
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return "";
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}
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}
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else {
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// We match a string
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return match;
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}
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});
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return result;
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}
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exports.stripComments = stripComments;
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/**
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* Escapes all special characters in RegExp pattern to avoid broken regular expressions and ensure proper matches
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*/
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function escapeRegExp(re) {
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return re.replace(/[.+*?|^$[\]{}()\\]/g, "\\$&");
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}
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exports.escapeRegExp = escapeRegExp;
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function arraysAreEqual(a, b, eq) {
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return (a === b ||
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(a !== undefined &&
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b !== undefined &&
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a.length === b.length &&
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a.every(function (x, idx) { return eq(x, b[idx]); })));
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}
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exports.arraysAreEqual = arraysAreEqual;
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/** Returns the first non-`undefined` result. */
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function find(inputs, getResult) {
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for (var _i = 0, inputs_1 = inputs; _i < inputs_1.length; _i++) {
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var element = inputs_1[_i];
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var result = getResult(element);
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if (result !== undefined) {
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return result;
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}
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}
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return undefined;
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}
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exports.find = find;
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/** Returns an array that is the concatenation of all output arrays. */
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function flatMap(inputs, getOutputs) {
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var out = [];
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for (var i = 0; i < inputs.length; i++) {
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out.push.apply(out, getOutputs(inputs[i], i));
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}
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return out;
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}
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exports.flatMap = flatMap;
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/** Returns an array of all outputs that are not `undefined`. */
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function mapDefined(inputs, getOutput) {
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var out = [];
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for (var _i = 0, inputs_2 = inputs; _i < inputs_2.length; _i++) {
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var input = inputs_2[_i];
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var output = getOutput(input);
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if (output !== undefined) {
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out.push(output);
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}
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}
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return out;
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}
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exports.mapDefined = mapDefined;
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function readBufferWithDetectedEncoding(buffer) {
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switch (detectBufferEncoding(buffer)) {
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case "utf8":
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return buffer.toString();
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case "utf8-bom":
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return buffer.toString("utf-8", 2);
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case "utf16le":
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return buffer.toString("utf16le", 2);
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case "utf16be":
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// Round down to nearest multiple of 2.
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var len = buffer.length & ~1; // tslint:disable-line no-bitwise
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// Flip all byte pairs, then read as little-endian.
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for (var i = 0; i < len; i += 2) {
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var temp = buffer[i];
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buffer[i] = buffer[i + 1];
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buffer[i + 1] = temp;
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}
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return buffer.toString("utf16le", 2);
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}
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}
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exports.readBufferWithDetectedEncoding = readBufferWithDetectedEncoding;
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function detectBufferEncoding(buffer, length) {
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if (length === void 0) { length = buffer.length; }
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if (length < 2) {
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return "utf8";
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}
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switch (buffer[0]) {
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case 0xef:
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if (buffer[1] === 0xbb && length >= 3 && buffer[2] === 0xbf) {
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return "utf8-bom";
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}
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break;
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case 0xfe:
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if (buffer[1] === 0xff) {
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return "utf16be";
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}
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break;
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case 0xff:
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if (buffer[1] === 0xfe) {
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return "utf16le";
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}
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}
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return "utf8";
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}
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exports.detectBufferEncoding = detectBufferEncoding;
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// converts Windows normalized paths (with backwards slash `\`) to paths used by TypeScript (with forward slash `/`)
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function denormalizeWinPath(path) {
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return path.replace(/\\/g, "/");
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}
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exports.denormalizeWinPath = denormalizeWinPath;
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function isPascalCased(name) {
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return isUpperCase(name[0]) && !name.includes("_") && !name.includes("-");
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}
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exports.isPascalCased = isPascalCased;
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function isCamelCased(name) {
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return isLowerCase(name[0]) && !name.includes("_") && !name.includes("-");
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}
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exports.isCamelCased = isCamelCased;
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function isSeparatorCased(name, disallowedSeparator) {
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for (var i = 0; i < name.length; i++) {
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var c = name.charAt(i);
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if (c === disallowedSeparator || !isLowerCase(c)) {
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return false;
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}
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}
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return true;
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}
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function isKebabCased(name) {
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return isSeparatorCased(name, "_");
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}
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exports.isKebabCased = isKebabCased;
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function isSnakeCased(name) {
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return isSeparatorCased(name, "-");
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}
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exports.isSnakeCased = isSnakeCased;
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/**
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* Tries to resolve a package by name, optionally relative to a file path. If the
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* file path is under a symlink, it tries to resolve the package under both the real path and under
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* the symlink path.
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*/
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function tryResolvePackage(packageName, relativeTo) {
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var realRelativeToPath = relativeTo !== undefined ? fs.realpathSync(relativeTo) : undefined;
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var resolvedPath = tryResolveSync(packageName, realRelativeToPath);
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if (resolvedPath === undefined) {
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resolvedPath = tryResolveSync(packageName, relativeTo);
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}
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return resolvedPath;
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}
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exports.tryResolvePackage = tryResolvePackage;
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/**
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* Calls `resolve.sync` and if it fails, it returns `undefined`
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*/
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function tryResolveSync(packageName, relativeTo) {
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try {
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return resolve.sync(packageName, { basedir: relativeTo });
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}
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catch (_a) {
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return undefined;
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}
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}
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/**
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* Gets the full indentation of the provided node
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*/
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function getIndentation(node, sourceFile) {
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var text = sourceFile.text.substr(node.pos, node.getStart() - node.pos);
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var matches = text.match(/([ \t]*)$/);
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return matches !== null ? matches[1] : "";
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}
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exports.getIndentation = getIndentation;
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/**
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* Creates x new lines with a proper indentation at the last one based on the provided node
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*/
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function newLineWithIndentation(node, sourceFile, linesCount) {
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if (linesCount === void 0) { linesCount = 1; }
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var maybeCarriageReturn = sourceFile.text[sourceFile.getLineEndOfPosition(node.pos) - 1] === "\r" ? "\r" : "";
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var indentation = getIndentation(node, sourceFile);
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return "" + (maybeCarriageReturn + "\n").repeat(linesCount) + indentation;
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}
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exports.newLineWithIndentation = newLineWithIndentation;
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/**
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* @deprecated Copied from tsutils 2.27.2. This will be removed once TSLint requires tsutils > 3.0.
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*/
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function isFunctionScopeBoundary(node) {
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switch (node.kind) {
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case ts.SyntaxKind.FunctionExpression:
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case ts.SyntaxKind.ArrowFunction:
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case ts.SyntaxKind.Constructor:
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case ts.SyntaxKind.ModuleDeclaration:
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case ts.SyntaxKind.ClassDeclaration:
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case ts.SyntaxKind.ClassExpression:
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case ts.SyntaxKind.EnumDeclaration:
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case ts.SyntaxKind.MethodDeclaration:
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case ts.SyntaxKind.FunctionDeclaration:
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case ts.SyntaxKind.GetAccessor:
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case ts.SyntaxKind.SetAccessor:
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case ts.SyntaxKind.InterfaceDeclaration:
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case ts.SyntaxKind.TypeAliasDeclaration:
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case ts.SyntaxKind.MethodSignature:
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case ts.SyntaxKind.CallSignature:
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case ts.SyntaxKind.ConstructSignature:
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case ts.SyntaxKind.ConstructorType:
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case ts.SyntaxKind.FunctionType:
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case ts.SyntaxKind.MappedType:
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case ts.SyntaxKind.ConditionalType:
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return true;
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case ts.SyntaxKind.SourceFile:
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// if SourceFile is no module, it contributes to the global scope and is therefore no scope boundary
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// tslint:disable:no-angle-bracket-type-assertion Code copied as from tsutils as is.
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return ts.isExternalModule(node);
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// tslint:enable:no-angle-bracket-type-assertopn
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default:
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return false;
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}
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}
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exports.isFunctionScopeBoundary = isFunctionScopeBoundary;
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