1 | "use strict";
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2 | var __extends = (this && this.__extends) || (function () {
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3 | var extendStatics = function (d, b) {
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4 | extendStatics = Object.setPrototypeOf ||
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5 | ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
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6 | function (d, b) { for (var p in b) if (b.hasOwnProperty(p)) d[p] = b[p]; };
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7 | return extendStatics(d, b);
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8 | }
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9 | return function (d, b) {
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10 | extendStatics(d, b);
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11 | function __() { this.constructor = d; }
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12 | d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
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13 | };
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14 | })();
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15 | Object.defineProperty(exports, "__esModule", { value: true });
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16 | var ts = require("typescript");
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17 | var Lint = require("tslint");
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18 | var tsutils_1 = require("tsutils");
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19 | var UNSPECIFIED_BROWSER_VERSION = 'unspecified version';
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20 | var JSDOC_BROWSERSPECIFIC = '@browserspecific';
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21 | var COMMENT_BROWSERSPECIFIC = 'Browser Specific:';
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22 | var FAILURE_BROWSER_STRING = 'Unsupported browser';
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23 | var FAILURE_VERSION_STRING = 'Unsupported browser version';
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24 | var Rule = (function (_super) {
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25 | __extends(Rule, _super);
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26 | function Rule() {
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27 | return _super !== null && _super.apply(this, arguments) || this;
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28 | }
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29 | Rule.prototype.apply = function (sourceFile) {
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30 | return this.applyWithFunction(sourceFile, walk, this.parseSupportedBrowsers(this.getOptions()));
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31 | };
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32 | Rule.prototype.parseSupportedBrowsers = function (options) {
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33 | var result = {};
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34 | var ruleArguments = options.ruleArguments;
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35 | (ruleArguments || []).forEach(function (option) {
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36 | if (option instanceof Array) {
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37 | option.forEach(function (browserString) {
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38 | var browser = parseBrowserString(browserString);
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39 | if (browser !== undefined) {
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40 | result[browser.name.toLowerCase()] = browser;
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41 | }
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42 | });
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43 | }
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44 | });
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45 | return {
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46 | supportedBrowsers: result
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47 | };
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48 | };
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49 | Rule.metadata = {
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50 | ruleName: 'no-unsupported-browser-code',
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51 | type: 'maintainability',
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52 | description: 'Avoid writing browser-specific code for unsupported browser versions',
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53 | options: null,
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54 | optionsDescription: '',
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55 | typescriptOnly: true,
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56 | issueClass: 'Non-SDL',
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57 | issueType: 'Warning',
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58 | severity: 'Low',
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59 | level: 'Opportunity for Excellence',
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60 | group: 'Clarity'
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61 | };
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62 | return Rule;
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63 | }(Lint.Rules.AbstractRule));
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64 | exports.Rule = Rule;
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65 | function parseBrowserString(browser) {
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66 | var regex = /([a-zA-Z ]*)(>=|<=|<|>)?\s*(\d*)/i;
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67 | var match = browser.match(regex);
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68 | if (match === null) {
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69 | return undefined;
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70 | }
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71 | return {
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72 | name: match[1].trim(),
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73 | comparison: match[2] || '=',
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74 | version: parseInt(match[3], 10) || UNSPECIFIED_BROWSER_VERSION
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75 | };
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76 | }
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77 | function walk(ctx) {
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78 | var supportedBrowsers = ctx.options.supportedBrowsers;
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79 | function findUnsupportedBrowserFailures(targetBrowser, startPos, length) {
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80 | if (!isSupportedBrowser(targetBrowser)) {
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81 | ctx.addFailureAt(startPos, length, FAILURE_BROWSER_STRING + ": " + targetBrowser.name);
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82 | }
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83 | else if (!isSupportedBrowserVersion(targetBrowser)) {
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84 | ctx.addFailureAt(startPos, length, FAILURE_VERSION_STRING + ": " + targetBrowser.name + " " + targetBrowser.version);
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85 | }
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86 | }
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87 | function isSupportedBrowser(targetBrowser) {
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88 | return targetBrowser.name.toLowerCase() in supportedBrowsers;
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89 | }
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90 | function isSupportedBrowserVersion(targetBrowser) {
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91 | var supportedBrowser = supportedBrowsers[targetBrowser.name.toLowerCase()];
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92 | if (supportedBrowser.version === UNSPECIFIED_BROWSER_VERSION) {
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93 | return true;
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94 | }
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95 | switch (supportedBrowser.comparison) {
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96 | case '>':
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97 | return targetBrowser.version > supportedBrowser.version;
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98 | case '>=':
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99 | return targetBrowser.version >= supportedBrowser.version;
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100 | case '<':
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101 | return targetBrowser.version < supportedBrowser.version;
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102 | case '<=':
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103 | return targetBrowser.version <= supportedBrowser.version;
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104 | case '=':
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105 | return targetBrowser.version === supportedBrowser.version;
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106 | default:
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107 | return false;
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108 | }
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109 | }
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110 | function cb(node) {
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111 | tsutils_1.forEachTokenWithTrivia(node, function (text, tokenSyntaxKind, range) {
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112 | var regex;
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113 | if (tokenSyntaxKind === ts.SyntaxKind.MultiLineCommentTrivia) {
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114 | regex = new RegExp(JSDOC_BROWSERSPECIFIC + "\\s*(.*)", 'gi');
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115 | }
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116 | else if (tokenSyntaxKind === ts.SyntaxKind.SingleLineCommentTrivia) {
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117 | regex = new RegExp(COMMENT_BROWSERSPECIFIC + "\\s*(.*)", 'gi');
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118 | }
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119 | else {
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120 | return;
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121 | }
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122 | var match;
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123 | var tokenText = text.substring(range.pos, range.end);
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124 | while ((match = regex.exec(tokenText))) {
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125 | var browser = parseBrowserString(match[1]);
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126 | if (browser === undefined) {
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127 | break;
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128 | }
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129 | findUnsupportedBrowserFailures(browser, range.pos, range.end - range.pos);
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130 | }
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131 | });
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132 | }
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133 | return ts.forEachChild(ctx.sourceFile, cb);
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134 | }
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135 |
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