tslint-immutable

<!doctype html> <html lang="en"> <head> <title>Code coverage report for noObjectMutationRule.ts</title> <meta charset="utf-8" /> <link rel="stylesheet" href="prettify.css" /> <link rel="stylesheet" href="base.css" /> <meta name="viewport" content="width=device-width, initial-scale=1"> <style type='text/css'> .coverage-summary .sorter { background-image: url(sort-arrow-sprite.png); } </style> </head> <body> <div class='wrapper'> <div class='pad1'> <h1> <a href="index.html">All files</a> noObjectMutationRule.ts </h1> <div class='clearfix'> <div class='fl pad1y space-right2'> 100% Statements 32/32 </div> <div class='fl pad1y space-right2'> 100% Branches 35/35 </div> <div class='fl pad1y space-right2'> 100% Functions 8/8 </div> <div class='fl pad1y space-right2'> 100% Lines 32/32 </div> </div> </div> <div class='status-line high'></div> <pre><table class="coverage"> <tr><td class="line-count quiet">1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112</td><td class="line-coverage quiet">1x   1x           1x         1x         1x         1x                               1x                 264x     264x 20x 20x 37x 110x           17x         264x 4x 4x 7x           3x         264x 6x 6x 12x 9x           3x         264x 5x 5x 10x 6x           4x       264x    </td><td class="text"><pre class="prettyprint lang-js">import * as ts from "typescript"; import * as Lint from "tslint"; import { createInvalidNode, CheckNodeResult, createCheckNodeRule, InvalidNode } from "./shared/check-node"; import * as Ignore from "./shared/ignore";   type Options = Ignore.IgnorePrefixOption;   // tslint:disable-next-line:variable-name export const Rule = createCheckNodeRule( checkNode, "Modifying properties of existing object not allowed." );   const objPropAccessors: ReadonlyArray<ts.SyntaxKind> = [ ts.SyntaxKind.ElementAccessExpression, ts.SyntaxKind.PropertyAccessExpression ];   const forbidObjPropOnLeftSideOf: ReadonlyArray<ts.SyntaxKind> = [ ts.SyntaxKind.EqualsToken, ts.SyntaxKind.PlusEqualsToken, ts.SyntaxKind.MinusEqualsToken, ts.SyntaxKind.AsteriskEqualsToken, ts.SyntaxKind.AsteriskAsteriskEqualsToken, ts.SyntaxKind.SlashEqualsToken, ts.SyntaxKind.PercentEqualsToken, ts.SyntaxKind.LessThanLessThanEqualsToken, ts.SyntaxKind.GreaterThanGreaterThanEqualsToken, ts.SyntaxKind.GreaterThanGreaterThanGreaterThanEqualsToken, ts.SyntaxKind.AmpersandEqualsToken, ts.SyntaxKind.BarEqualsToken, ts.SyntaxKind.CaretEqualsToken ];   const forbidUnaryOps: ReadonlyArray<ts.SyntaxKind> = [ ts.SyntaxKind.PlusPlusToken, ts.SyntaxKind.MinusMinusToken ];   function checkNode( node: ts.Node, ctx: Lint.WalkContext<Options> ): CheckNodeResult { let invalidNodes: Array<InvalidNode> = [];   // No assignment with object.property on the left if (node && node.kind === ts.SyntaxKind.BinaryExpression) { const binExp = node as ts.BinaryExpression; if ( objPropAccessors.some(k => k === binExp.left.kind) && forbidObjPropOnLeftSideOf.some(k => k === binExp.operatorToken.kind) && !Ignore.isIgnoredPrefix( binExp.getText(node.getSourceFile()), ctx.options.ignorePrefix ) ) { invalidNodes = [...invalidNodes, createInvalidNode(node)]; } }   // No deleting object properties if (node && node.kind === ts.SyntaxKind.DeleteExpression) { const delExp = node as ts.DeleteExpression; if ( objPropAccessors.some(k => k === delExp.expression.kind) && !Ignore.isIgnoredPrefix( delExp.expression.getText(node.getSourceFile()), ctx.options.ignorePrefix ) ) { invalidNodes = [...invalidNodes, createInvalidNode(node)]; } }   // No prefix inc/dec if (node && node.kind === ts.SyntaxKind.PrefixUnaryExpression) { const preExp = node as ts.PrefixUnaryExpression; if ( objPropAccessors.some(k => k === preExp.operand.kind) && forbidUnaryOps.some(o => o === preExp.operator) && !Ignore.isIgnoredPrefix( preExp.operand.getText(node.getSourceFile()), ctx.options.ignorePrefix ) ) { invalidNodes = [...invalidNodes, createInvalidNode(node)]; } }   // No postfix inc/dec if (node && node.kind === ts.SyntaxKind.PostfixUnaryExpression) { const postExp = node as ts.PostfixUnaryExpression; if ( objPropAccessors.some(k => k === postExp.operand.kind) && forbidUnaryOps.some(o => o === postExp.operator) && !Ignore.isIgnoredPrefix( postExp.getText(node.getSourceFile()), ctx.options.ignorePrefix ) ) { invalidNodes = [...invalidNodes, createInvalidNode(node)]; } }   return { invalidNodes }; }  </pre></td></tr> </table></pre> <div class='push'></div> </div> <div class='footer quiet pad2 space-top1 center small'> Code coverage generated by <a href="https://istanbul.js.org/" target="_blank">istanbul</a> at Tue Jan 16 2018 21:59:42 GMT+0100 (CET) </div> </div> <script src="prettify.js"></script> <script> window.onload = function () { if (typeof prettyPrint === 'function') { prettyPrint(); } }; </script> <script src="sorter.js"></script> </body> </html>