Move C++ virtual destructor definition to .cpp files (#21529) (#21530)

* Move C++ virtual destructor definition to .cpp files (#21529)

* Subsequent commit with codegened C++ - PR step 3 (#21529)

Author: pylaterreur

modules/openapi-generator/src/main/resources/cpp-pistache-server/model-header.mustache

@@ -23,7 +23,7 @@ class {{declspec}} {{classname}}
 {
 public:
     {{classname}}();
-    virtual ~{{classname}}() = default;
+    virtual ~{{classname}}();
 {{#isEnum}}{{#allowableValues}}
     enum class e{{classname}} {
     // To have a valid default value.

modules/openapi-generator/src/main/resources/cpp-pistache-server/model-source.mustache

@@ -18,6 +18,8 @@ namespace {{modelNamespace}}
     {{/required}}{{/vars}}
 }
 
+{{classname}}::~{{classname}}() = default;
+
 void {{classname}}::validate() const
 {
     std::stringstream msg;

modules/openapi-generator/src/main/resources/cpp-restbed-server-deprecated/model-header.mustache

@@ -34,7 +34,7 @@ class {{declspec}} {{classname}} {{#interfaces}}{{#-first}}:{{/-first}}{{^-first
 public:
     {{classname}}() = default;
     explicit {{classname}}(boost::property_tree::ptree const& pt);
-    virtual ~{{classname}}() = default;
+    virtual ~{{classname}}();
 
     std::string toJsonString(bool prettyJson = false);
     void fromJsonString(std::string const& jsonString);

modules/openapi-generator/src/main/resources/cpp-restbed-server-deprecated/model-source.mustache

@@ -26,6 +26,8 @@ namespace {{this}} {
         fromPropertyTree(pt);
 }
 
+{{classname}}::~{{classname}}() = default;
+
 std::string {{classname}}::toJsonString(bool prettyJson /* = false */)
 {
     return toJsonString_internal(prettyJson);

modules/openapi-generator/src/main/resources/cpp-restbed-server/api-header.mustache

@@ -57,7 +57,7 @@ class {{declspec}} {{vendorExtensions.x-codegen-resource-name}}Resource: public
 {
 public:
     {{vendorExtensions.x-codegen-resource-name}}Resource(const std::string& context = "{{contextPath}}");
-    virtual ~{{vendorExtensions.x-codegen-resource-name}}Resource() = default;
+    virtual ~{{vendorExtensions.x-codegen-resource-name}}Resource();
 
     {{vendorExtensions.x-codegen-resource-name}}Resource(
         const {{vendorExtensions.x-codegen-resource-name}}Resource& other) = default; // copy constructor

modules/openapi-generator/src/main/resources/cpp-restbed-server/api-source.mustache

@@ -117,6 +117,8 @@ namespace {{classname}}Resources {
 	{{/vendorExtensions.x-codegen-other-methods}}
 }
 
+{{vendorExtensions.x-codegen-resource-name}}Resource::~{{vendorExtensions.x-codegen-resource-name}}Resource() = default;
+
 std::pair<int, std::string> {{vendorExtensions.x-codegen-resource-name}}Resource::handle{{classname}}Exception(const {{classname}}Exception& e)
 {
     return std::make_pair<int, std::string>(e.getStatus(), e.what());

modules/openapi-generator/src/main/resources/cpp-restbed-server/model-header.mustache

@@ -38,7 +38,7 @@ class {{declspec}} {{classname}} {{#interfaces}}{{#-first}}:{{/-first}}{{^-first
 public:
     {{classname}}() = default;
     explicit {{classname}}(boost::property_tree::ptree const& pt);
-    virtual ~{{classname}}() = default;
+    virtual ~{{classname}}();
 
     {{classname}}(const {{classname}}& other) = default; // copy constructor
     {{classname}}({{classname}}&& other) noexcept = default; // move constructor

modules/openapi-generator/src/main/resources/cpp-restbed-server/model-source.mustache

@@ -30,6 +30,7 @@ namespace {{this}} {
         fromPropertyTree(pt);
 }
 
+{{classname}}::~{{classname}} = default;
 
 std::string {{classname}}::toJsonString(bool prettyJson /* = false */) const
 {

modules/openapi-generator/src/main/resources/cpp-tiny/service/api-header.mustache

@@ -26,7 +26,7 @@ public:
     {{classname}}() = default;
 
     {{! Destructor }}
-    virtual ~{{classname}}() = default;
+    virtual ~{{classname}}();
 
     {{! Service endpoint }}
     {{#operation}}

samples/client/petstore/cpp-tiny/lib/service/PetApi.h

@@ -22,7 +22,7 @@ class PetApi : public Service {
 public:
     PetApi() = default;
 
-    virtual ~PetApi() = default;
+    virtual ~PetApi();
 
     /**
     * Add a new pet to the store.