[Fix] sort-prop-types: avoid crash when autofixing

Fixes #3470.

Author: ROSSROSALES

docs/rules/sort-prop-types.md

@@ -4,6 +4,8 @@
 
 <!-- end auto-generated rule header -->
 
+🔧 This rule is automatically fixable using the `--fix` [flag](https://eslint.org/docs/latest/user-guide/command-line-interface#--fix) on the command line.
+
 Some developers prefer to sort prop type declarations alphabetically to be able to find necessary declaration easier at the later time. Others feel that it adds complexity and becomes burden to maintain.
 
 ## Rule Details

lib/util/propTypesSort.js

@@ -127,30 +127,26 @@ function fixPropTypesSort(fixer, context, declarations, ignoreCase, requiredFirs
       const node = allNodes[i];
       let commentAfter = [];
       let commentBefore = [];
+      let newStart = 0;
+      let newEnd = 0;
       try {
         commentBefore = sourceCode.getCommentsBefore(node);
         commentAfter = sourceCode.getCommentsAfter(node);
       } catch (e) { /**/ }
-      if (commentAfter.length === 0 && commentBefore.length === 0) {
-        commentnodeMap.set(node, { start: node.range[0], end: node.range[1], hasComment: false });
-      } else {
-        const firstCommentBefore = commentBefore[0];
-        if (commentBefore.length === 1) {
-          commentnodeMap.set(node, { start: firstCommentBefore.range[0], end: node.range[1], hasComment: true });
-        }
-        const firstCommentAfter = commentAfter[0];
-        if (commentAfter.length === 1) {
-          commentnodeMap.set(node, { start: node.range[0], end: firstCommentAfter.range[1], hasComment: true });
-        }
-        if (commentBefore.length === 1 && commentAfter.length === 1) {
-          commentnodeMap.set(node, {
-            start: firstCommentBefore.range[0],
-            end: firstCommentAfter.range[1],
-            hasComment: true,
-          });
-        }
+      if (commentAfter.length === 0 || commentBefore.length === 0) {
+        newStart = node.range[0]
+        newEnd = node.range[1]
       }
-    }
+      const firstCommentBefore = commentBefore[0];
+      if (commentBefore.length >= 1) {
+        newStart = firstCommentBefore.range[0]
+      }
+      const lastCommentAfter = commentAfter[commentAfter.length - 1];
+      if (commentAfter.length >= 1) {
+        newEnd = lastCommentAfter.range[1]
+      }
+      commentnodeMap.set(node, { start: newStart, end: newEnd, hasComment: true });
+      };
     const nodeGroups = allNodes.reduce((acc, curr) => {
       if (curr.type === 'ExperimentalSpreadProperty' || curr.type === 'SpreadElement') {
         acc.push([]);

tests/lib/rules/sort-prop-types.js

@@ -2098,6 +2098,56 @@ ruleTester.run('sort-prop-types', rule, {
           type: 'Property',
         },
       ],
-    } : []
+    } : [],
+    semver.satisfies(eslintPkg.version, '> 3') ? {
+      code: `
+        var First = createReactClass({
+          propTypes: {
+            /* z */
+            /* z */
+            z: PropTypes.string /* z */,
+            /* a */
+            a: PropTypes.any /* a */
+            /* a */
+            /* a */,
+            b: PropTypes.any
+          },
+          render: function() {
+            return <div />;
+          }
+        });
+      `,
+      output: `
+        var First = createReactClass({
+          propTypes: {
+            /* a */
+            a: PropTypes.any /* a */
+            /* a */
+            /* a */,
+            b: PropTypes.any,
+            /* z */
+            /* z */
+            z: PropTypes.string /* z */
+          },
+          render: function() {
+            return <div />;
+          }
+        });
+      `,
+      errors: [
+        {
+          messageId: 'propsNotSorted',
+          line: 8,
+          column: 13,
+          type: 'Property',
+        },
+        {
+          messageId: 'propsNotSorted',
+          line: 11,
+          column: 13,
+          type: 'Property',
+        },
+      ],
+    } : [],
   )),
 });