Fix parent not being set for decorator nodes. (#296)

Author: fatfisz

index.js

@@ -72,6 +72,11 @@ function monkeypatch() {
     assign(estraverseOfEslint.VisitorKeys, t.VISITOR_KEYS);
   }
 
+  estraverses.forEach(function (estraverse) {
+    estraverse.VisitorKeys.MethodDefinition.push("decorators");
+    estraverse.VisitorKeys.Property.push("decorators");
+  });
+
   // monkeypatch escope
   var escope  = require(escopeLoc);
   var analyze = escope.analyze;

test/non-regression.js

@@ -1048,6 +1048,7 @@ describe("verify", function () {
         [
           "import classDeclaration from 'decorator';",
           "import decoratorParameter from 'decorator';",
+          "@classDeclaration((parameter) => parameter)",
           "@classDeclaration(decoratorParameter)",
           "@classDeclaration",
           "export class TextareaAutosize {}"
@@ -1063,6 +1064,7 @@ describe("verify", function () {
           "import classMethodDeclarationA from 'decorator';",
           "import decoratorParameter from 'decorator';",
           "export class TextareaAutosize {",
+            "@classMethodDeclarationA((parameter) => parameter)",
             "@classMethodDeclarationA(decoratorParameter)",
             "@classMethodDeclarationA",
             "methodDeclaration(e) {",
@@ -1081,9 +1083,11 @@ describe("verify", function () {
           "import classMethodDeclarationA from 'decorator';",
           "import decoratorParameter from 'decorator';",
           "export class TextareaAutosize {",
+            "@classMethodDeclarationA((parameter) => parameter)",
             "@classMethodDeclarationA(decoratorParameter)",
             "@classMethodDeclarationA",
             "get bar() { }",
+            "@classMethodDeclarationA((parameter) => parameter)",
             "@classMethodDeclarationA(decoratorParameter)",
             "@classMethodDeclarationA",
             "set bar(val) { val; }",
@@ -1100,6 +1104,7 @@ describe("verify", function () {
           "import classMethodDeclarationA from 'decorator';",
           "import decoratorParameter from 'decorator';",
           "var obj = {",
+            "@classMethodDeclarationA((parameter) => parameter)",
             "@classMethodDeclarationA(decoratorParameter)",
             "@classMethodDeclarationA",
             "methodDeclaration(e) {",
@@ -1119,9 +1124,11 @@ describe("verify", function () {
           "import classMethodDeclarationA from 'decorator';",
           "import decoratorParameter from 'decorator';",
           "var obj = {",
+            "@classMethodDeclarationA((parameter) => parameter)",
             "@classMethodDeclarationA(decoratorParameter)",
             "@classMethodDeclarationA",
             "get bar() { },",
+            "@classMethodDeclarationA((parameter) => parameter)",
             "@classMethodDeclarationA(decoratorParameter)",
             "@classMethodDeclarationA",
             "set bar(val) { val; }",