Fix for Issue #2471 "JavaScript client code generator emits invalid code for map and array types"

modules/swagger-codegen/src/main/java/io/swagger/codegen/languages/JavascriptClientCodegen.java

@@ -12,9 +12,12 @@ import io.swagger.codegen.CodegenProperty;
 import io.swagger.codegen.CodegenType;
 import io.swagger.codegen.SupportingFile;
 import io.swagger.codegen.DefaultCodegen;
+import io.swagger.models.ArrayModel;
+import io.swagger.models.ComposedModel;
 import io.swagger.models.Info;
 import io.swagger.models.License;
 import io.swagger.models.Model;
+import io.swagger.models.ModelImpl;
 import io.swagger.models.Operation;
 import io.swagger.models.Swagger;
 import io.swagger.models.properties.ArrayProperty;
@@ -705,6 +708,19 @@ public class JavascriptClientCodegen extends DefaultCodegen implements CodegenCo
             final CodegenModel parentCodegenModel = super.fromModel(codegenModel.parent, parentModel);
             codegenModel = JavascriptClientCodegen.reconcileInlineEnums(codegenModel, parentCodegenModel);
         }
+        if (model instanceof ArrayModel) {
+            ArrayModel am = (ArrayModel) model;
+            if (am.getItems() != null) {
+                codegenModel.vendorExtensions.put("x-isArray", true);
+                codegenModel.vendorExtensions.put("x-itemType", getSwaggerType(am.getItems()));
+            }
+        } else if (model instanceof ModelImpl) {
+            ModelImpl mm = (ModelImpl)model;
+            if (mm.getAdditionalProperties() != null) {
+                codegenModel.vendorExtensions.put("x-isMap", true);
+                codegenModel.vendorExtensions.put("x-itemType", getSwaggerType(mm.getAdditionalProperties()));
+            }
+        }
 
         return codegenModel;
     }

modules/swagger-codegen/src/main/resources/Javascript/ApiClient.mustache

@@ -474,6 +474,25 @@
     }
   };
 
+{{#emitJSDoc}}  /**
+   * Constructs a new map or array model from REST data.
+   * @param data {Object|Array} The REST data.
+   * @param obj {Object|Array} The target object or array.
+   */
+{{/emitJSDoc}}  exports.constructFromObject = function(data, obj, itemType) {
+    if (Array.isArray(data)) {
+      for (var i = 0; i < data.length; i++) {
+        if (data.hasOwnProperty(i))
+          obj[i] = exports.convertToType(data[i], itemType);
+      }
+    } else {
+      for (var k in data) {
+        if (data.hasOwnProperty(k))
+          result[k] = exports.convertToType(data[k], itemType);
+      }
+    }
+  };
+
 {{#emitJSDoc}}  /**
    * The default API client implementation.
    * @type {module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}ApiClient}

modules/swagger-codegen/src/main/resources/Javascript/model.mustache

@@ -26,15 +26,19 @@
    * {{description}}{{/description}}
    * @alias module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}{{#modelPackage}}{{modelPackage}}/{{/modelPackage}}{{classname}}
    * @class{{#useInheritance}}{{#parent}}
-   * @extends module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}{{#modelPackage}}{{modelPackage}}/{{/modelPackage}}{{parent}}{{/parent}}{{#interfaces}}
+   * @extends {{#parentModel}}module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}{{#modelPackage}}{{modelPackage}}/{{/modelPackage}}{{parent}}{{/parentModel}}{{^parentModel}}{{#vendorExtensions.x-isArray}}Array{{/vendorExtensions.x-isArray}}{{#vendorExtensions.x-isMap}}Object{{/vendorExtensions.x-isMap}}{{/parentModel}}{{/parent}}{{#interfaces}}
    * @implements module:{{#invokerPackage}}{{invokerPackage}}/{{/invokerPackage}}{{#modelPackage}}{{modelPackage}}/{{/modelPackage}}{{.}}{{/interfaces}}{{/useInheritance}}{{#vendorExtensions.x-all-required}}
    * @param {{.}}{{/vendorExtensions.x-all-required}}
-   */{{/emitJSDoc}}
+   */
-  var exports = function({{#vendorExtensions.x-all-required}}{{.}}{{^-last}}, {{/-last}}{{/vendorExtensions.x-all-required}}) {
+{{/emitJSDoc}}  var exports = function({{#vendorExtensions.x-all-required}}{{.}}{{^-last}}, {{/-last}}{{/vendorExtensions.x-all-required}}) {
-{{#useInheritance}}{{#parentModel}}    {{classname}}.call(this{{#vendorExtensions.x-all-required}}, {{.}}{{/vendorExtensions.x-all-required}});{{/parentModel}}
+    var _this = this;
-{{#interfaceModels}}    {{classname}}.call(this{{#vendorExtensions.x-all-required}}, {{.}}{{/vendorExtensions.x-all-required}});
+{{#parent}}{{^parentModel}}{{#vendorExtensions.x-isArray}}    _this = new Array();
-{{/interfaceModels}}{{/useInheritance}}{{#vars}}{{#required}}    this['{{baseName}}'] = {{name}};{{/required}}
+    Object.setPrototypeOf(_this, exports);
-{{/vars}}  };
+{{/vendorExtensions.x-isArray}}{{/parentModel}}{{/parent}}{{#useInheritance}}{{#parent}}{{#parentModel}}    {{classname}}.call(_this{{#vendorExtensions.x-all-required}}, {{.}}{{/vendorExtensions.x-all-required}});{{/parentModel}}{{/parent}}
+{{#interfaceModels}}    {{classname}}.call(_this{{#vendorExtensions.x-all-required}}, {{.}}{{/vendorExtensions.x-all-required}});
+{{/interfaceModels}}{{/useInheritance}}{{#vars}}{{#required}}    _this['{{baseName}}'] = {{name}};{{/required}}
+{{/vars}}{{#parent}}{{^parentModel}}    return _this;
+{{/parentModel}}{{/parent}}  };
 
 {{#emitJSDoc}}  /**
    * Constructs a <code>{{classname}}</code> from a plain JavaScript object, optionally creating a new instance.
@@ -44,9 +48,10 @@
    * @return {{=< >=}}{module:<#invokerPackage><invokerPackage>/</invokerPackage><#modelPackage><modelPackage>/</modelPackage><classname>}<={{ }}=> The populated <code>{{classname}}</code> instance.
    */
 {{/emitJSDoc}}  exports.constructFromObject = function(data, obj) {
-    if (data) { {{!// TODO: support polymorphism: discriminator property on data determines class to instantiate.}}
+    if (data){{! TODO: support polymorphism: discriminator property on data determines class to instantiate.}} {
       obj = obj || new exports();
-{{#useInheritance}}{{#parent}}      {{.}}.constructFromObject(data, obj);{{/parent}}
+{{#parent}}{{^parentModel}}      ApiClient.constructFromObject(data, obj, {{vendorExtensions.x-itemType}});
+{{/parentModel}}{{/parent}}{{#useInheritance}}{{#parentModel}}{{#parent}}      {{parent}}.constructFromObject(data, obj);{{/parent}}{{/parentModel}}
 {{#interfaces}}      {{.}}.constructFromObject(data, obj);
 {{/interfaces}}{{/useInheritance}}{{#vars}}      if (data.hasOwnProperty('{{baseName}}')) {
         obj['{{baseName}}']{{{defaultValueWithParam}}}
@@ -54,10 +59,10 @@
 {{/vars}}    }
     return obj;
   }
-{{#useInheritance}}{{#parent}}
+{{#useInheritance}}{{#parentModel}}{{#parent}}
   exports.prototype = Object.create({{parent}}.prototype);
   exports.prototype.constructor = exports;
-{{/parent}}{{/useInheritance}}
+{{/parent}}{{/parentModel}}{{/useInheritance}}
 {{#vars}}{{#emitJSDoc}}
   /**{{#description}}
    * {{{description}}}{{/description}}