145 lines
6.6 KiB
JavaScript
145 lines
6.6 KiB
JavaScript
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"use strict";
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/**
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* @license
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* Copyright 2013 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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exports.Rule = void 0;
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var tslib_1 = require("tslib");
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var tsutils_1 = require("tsutils");
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var ts = require("typescript");
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var Lint = require("../index");
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var noConsecutiveBlankLinesRule_1 = require("./noConsecutiveBlankLinesRule");
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var ZERO_WIDTH_NO_BREAK_SPACE = 0xfeff;
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var OPTION_IGNORE_COMMENTS = "ignore-comments";
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var OPTION_IGNORE_JSDOC = "ignore-jsdoc";
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var OPTION_IGNORE_TEMPLATE_STRINGS = "ignore-template-strings";
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var OPTION_IGNORE_BLANK_LINES = "ignore-blank-lines";
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var Rule = /** @class */ (function (_super) {
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tslib_1.__extends(Rule, _super);
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function Rule() {
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return _super !== null && _super.apply(this, arguments) || this;
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}
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Rule.prototype.apply = function (sourceFile) {
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var ignoreComments = this.ruleArguments.indexOf(OPTION_IGNORE_COMMENTS) !== -1;
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return this.applyWithFunction(sourceFile, walk, {
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ignoreBlankLines: this.ruleArguments.indexOf(OPTION_IGNORE_BLANK_LINES) !== -1,
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ignoreComments: ignoreComments,
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ignoreJsDoc: ignoreComments || this.ruleArguments.indexOf(OPTION_IGNORE_JSDOC) !== -1,
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ignoreTemplates: this.ruleArguments.indexOf(OPTION_IGNORE_TEMPLATE_STRINGS) !== -1,
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});
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};
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/* tslint:disable:object-literal-sort-keys */
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Rule.metadata = {
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ruleName: "no-trailing-whitespace",
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description: "Disallows trailing whitespace at the end of a line.",
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rationale: "Keeps version control diffs clean as it prevents accidental whitespace from being committed.",
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optionsDescription: Lint.Utils.dedent(templateObject_1 || (templateObject_1 = tslib_1.__makeTemplateObject(["\n Possible settings are:\n\n * `\"", "\"`: Allows trailing whitespace in template strings.\n * `\"", "\"`: Allows trailing whitespace in comments.\n * `\"", "\"`: Allows trailing whitespace only in JSDoc comments.\n * `\"", "\"`: Allows trailing whitespace on empty lines."], ["\n Possible settings are:\n\n * \\`\"", "\"\\`: Allows trailing whitespace in template strings.\n * \\`\"", "\"\\`: Allows trailing whitespace in comments.\n * \\`\"", "\"\\`: Allows trailing whitespace only in JSDoc comments.\n * \\`\"", "\"\\`: Allows trailing whitespace on empty lines."])), OPTION_IGNORE_TEMPLATE_STRINGS, OPTION_IGNORE_COMMENTS, OPTION_IGNORE_JSDOC, OPTION_IGNORE_BLANK_LINES),
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hasFix: true,
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options: {
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type: "array",
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items: {
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type: "string",
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enum: [
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OPTION_IGNORE_COMMENTS,
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OPTION_IGNORE_JSDOC,
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OPTION_IGNORE_TEMPLATE_STRINGS,
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OPTION_IGNORE_BLANK_LINES,
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],
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},
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},
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optionExamples: [true, [true, OPTION_IGNORE_COMMENTS], [true, OPTION_IGNORE_JSDOC]],
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type: "formatting",
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typescriptOnly: false,
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};
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/* tslint:enable:object-literal-sort-keys */
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Rule.FAILURE_STRING = "trailing whitespace";
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return Rule;
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}(Lint.Rules.AbstractRule));
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exports.Rule = Rule;
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function walk(ctx) {
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var possibleFailures = [];
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var sourceFile = ctx.sourceFile;
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var text = sourceFile.text;
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for (var _i = 0, _a = tsutils_1.getLineRanges(sourceFile); _i < _a.length; _i++) {
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var line = _a[_i];
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// \s matches any whitespace character (equal to [\r\n\t\f\v ])
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var match = text.substr(line.pos, line.contentLength).match(/\s+$/);
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if (match !== null &&
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!(ctx.options.ignoreBlankLines && match.index === 0) &&
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match[0] !== String.fromCharCode(ZERO_WIDTH_NO_BREAK_SPACE)) {
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possibleFailures.push({
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end: line.pos + line.contentLength,
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pos: line.pos + match.index,
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});
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}
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}
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if (possibleFailures.length === 0) {
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return;
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}
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var excludedRanges = ctx.options.ignoreTemplates
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? ctx.options.ignoreJsDoc
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? getExcludedRanges(sourceFile, ctx.options)
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: noConsecutiveBlankLinesRule_1.getTemplateRanges(sourceFile)
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: ctx.options.ignoreJsDoc
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? getExcludedComments(sourceFile, ctx.options)
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: [];
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var _loop_1 = function (possibleFailure) {
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if (!excludedRanges.some(function (range) { return range.pos < possibleFailure.pos && possibleFailure.pos < range.end; })) {
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ctx.addFailure(possibleFailure.pos, possibleFailure.end, Rule.FAILURE_STRING, Lint.Replacement.deleteFromTo(possibleFailure.pos, possibleFailure.end));
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}
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};
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for (var _b = 0, possibleFailures_1 = possibleFailures; _b < possibleFailures_1.length; _b++) {
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var possibleFailure = possibleFailures_1[_b];
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_loop_1(possibleFailure);
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}
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}
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function getExcludedRanges(sourceFile, options) {
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var intervals = [];
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tsutils_1.forEachTokenWithTrivia(sourceFile, function (text, kind, range) {
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if (kind >= ts.SyntaxKind.FirstTemplateToken && kind <= ts.SyntaxKind.LastTemplateToken) {
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intervals.push(range);
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}
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else if (options.ignoreComments) {
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if (kind === ts.SyntaxKind.SingleLineCommentTrivia ||
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kind === ts.SyntaxKind.MultiLineCommentTrivia) {
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intervals.push(range);
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}
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}
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else if (options.ignoreJsDoc) {
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if (isJsDoc(text, kind, range)) {
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intervals.push(range);
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}
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}
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});
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return intervals;
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}
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function getExcludedComments(sourceFile, options) {
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var intervals = [];
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tsutils_1.forEachComment(sourceFile, function (text, comment) {
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if (options.ignoreComments ||
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(options.ignoreJsDoc && isJsDoc(text, comment.kind, comment))) {
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intervals.push(comment);
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}
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});
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return intervals;
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}
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function isJsDoc(sourceText, kind, range) {
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return (kind === ts.SyntaxKind.MultiLineCommentTrivia &&
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sourceText[range.pos + 2] === "*" &&
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sourceText[range.pos + 3] !== "*");
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}
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var templateObject_1;
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