autodetect default and repeatable parameters when a function is assigned to a variable (#1054)

lib/jsdoc/src/parser.js

@@ -362,7 +362,10 @@ Parser.prototype.astnodeToMemberof = function(node) {
     else if (type === Syntax.MethodDefinition && node.kind === 'constructor') {
         doclet = this._getDocletById(node.enclosingScope.nodeId);
 
-        result.memberof = doclet.memberof + jsdoc.name.SCOPE.PUNC.INNER;
+        // global classes aren't a member of anything
+        if (doclet.memberof) {
+            result.memberof = doclet.memberof + jsdoc.name.SCOPE.PUNC.INNER;
+        }
     }
     else {
         // check local references for aliases

lib/jsdoc/src/visitor.js

@@ -184,7 +184,10 @@ function makeRestParamFinisher() {
         }
 
         documentedParams = doclet.params = doclet.params || [];
-        restNode = findRestParam(e.code.node.params || e.code.node.value.params);
+        restNode = findRestParam(e.code.node.params ||
+            (e.code.node.value && e.code.node.value.params) ||
+            (e.code.node.init && e.code.node.init.params) ||
+            []);
 
         if (restNode) {
             for (var i = documentedParams.length - 1; i >= 0; i--) {
@@ -247,7 +250,7 @@ function makeDefaultParamFinisher() {
         }
 
         documentedParams = doclet.params = doclet.params || [];
-        params = e.code.node.params || e.code.node.value.params;
+        params = e.code.node.params || (e.code.node.value && e.code.node.value.params) || [];
         defaultValues = findDefaultParams(params);
 
         for (var i = 0, j = 0, l = params.length; i < l; i++) {
@@ -314,7 +317,7 @@ function makeConstructorFinisher(parser) {
         if (!parentDoclet.description && doclet.description) {
             parentDoclet.description = doclet.description;
         }
-        if (!parentDoclet.params && doclet.params) {
+        if ( (!parentDoclet.params || !parentDoclet.params.length) && doclet.params) {
             parentDoclet.params = doclet.params.slice(0);
         }
 
@@ -794,6 +797,10 @@ Visitor.prototype.makeSymbolFoundEvent = function(node, parser, filename) {
         // like: var i = 0;
         case Syntax.VariableDeclarator:
             extras.finishers = [
+                // handle cases where at least one parameter has a default value
+                makeDefaultParamFinisher(),
+                // handle rest parameters
+                makeRestParamFinisher(),
                 // handle async functions
                 makeAsyncFunctionFinisher(),
                 // handle generator functions

test/fixtures/defaultparams.js

@@ -62,3 +62,10 @@ function setDogName(dogName = '') {}
  * @param {PizzaToppings} toppings - The user's favorite toppings.
  */
 function setPizzaToppings(toppings = PIZZA_TOPPING_DEFAULTS) {}
+
+/**
+ * Set whether the user is a ninja.
+ *
+ * @param {boolean} isNinja - Set to `true` if the user is a ninja; otherwise, `false`.
+ */
+var setIsNinja = function(isNinja = true) {};

test/fixtures/restparams.js

@@ -14,3 +14,10 @@ function setAdmins(...users) {}
  * @param {User} users - The users who will receive rights to access the widget.
  */
 function setWidgetAccess(widget, ...users) {}
+
+/**
+ * Set the list of users who are managers.
+ *
+ * @param {User} users - The users who are managers.
+ */
+var setManagers = function(...users) {};

test/specs/documentation/defaultparams.js

@@ -7,6 +7,7 @@ describe('default parameters', function() {
     var setBirthYear = docSet.getByLongname('setBirthYear')[0];
     var setDogName = docSet.getByLongname('setDogName')[0];
     var setFirstName = docSet.getByLongname('setFirstName')[0];
+    var setIsNinja = docSet.getByLongname('setIsNinja')[0];
     var setLastName = docSet.getByLongname('setLastName')[0];
     var setName = docSet.getByLongname('setName')[0];
     var setPizzaToppings = docSet.getByLongname('setPizzaToppings')[0];
@@ -49,6 +50,10 @@ describe('default parameters', function() {
         expect(setPizzaToppings.params[0].defaultvalue).toBeUndefined();
     });
 
+    it('should work when the function is assigned to a variable', function() {
+        expect(setIsNinja.params[0].defaultvalue).toBe(true);
+    });
+
     describe('ES2015 methods', function() {
         var docSet2 = jasmine.getDocSetFromFile('test/fixtures/defaultparams2.js');
 

test/specs/documentation/restparams.js

@@ -3,6 +3,7 @@
 describe('rest parameters', function() {
     var docSet = jasmine.getDocSetFromFile('test/fixtures/restparams.js');
     var setAdmins = docSet.getByLongname('setAdmins')[0];
+    var setManagers = docSet.getByLongname('setManagers')[0];
     var setWidgetAccess = docSet.getByLongname('setWidgetAccess')[0];
 
     it('should automatically mark standalone rest parameters as repeatable', function() {
@@ -19,6 +20,13 @@ describe('rest parameters', function() {
         expect(restParam.variable).toBe(true);
     });
 
+    it('should automatically mark rest parameters as repeatable when the function is assigned to a variable', function() {
+        var restParam = setManagers.params[0];
+
+        expect(restParam.name).toBe('users');
+        expect(restParam.variable).toBe(true);
+    });
+
     describe('ES2015 methods', function() {
         var docSet2 = jasmine.getDocSetFromFile('test/fixtures/restparams2.js');