Delete default constructor in namespace classes.

c++/src/capnproto/blob.h

@@ -32,11 +32,13 @@
 namespace capnproto {
 
 struct Data {
+  Data() = delete;
   class Reader;
   class Builder;
 };
 
 struct Text {
+  Text() = delete;
   class Reader;
   class Builder;
 };

c++/src/capnproto/dynamic.h

@@ -45,6 +45,8 @@ class MessageReader;
 class MessageBuilder;
 
 struct DynamicValue {
+  DynamicValue() = delete;
+
   enum Type {
     UNKNOWN,
     // Means that the value has unknown type and content because it comes from a newer version of
@@ -72,14 +74,17 @@ struct DynamicValue {
 class DynamicEnum;
 class DynamicObject;
 struct DynamicUnion {
+  DynamicUnion() = delete;
   class Reader;
   class Builder;
 };
 struct DynamicStruct {
+  DynamicStruct() = delete;
   class Reader;
   class Builder;
 };
 struct DynamicList {
+  DynamicList() = delete;
   class Reader;
   class Builder;
 };

c++/src/capnproto/list.h

@@ -181,6 +181,8 @@ template <typename T>
 struct List<T, Kind::PRIMITIVE> {
   // List of primitives.
 
+  List() = delete;
+
   class Reader {
   public:
     typedef List<T> Reads;
@@ -278,6 +280,8 @@ template <typename T>
 struct List<T, Kind::STRUCT> {
   // List of structs.
 
+  List() = delete;
+
   class Reader {
   public:
     typedef List<T> Reads;
@@ -368,6 +372,8 @@ template <typename T>
 struct List<List<T>, Kind::LIST> {
   // List of lists.
 
+  List() = delete;
+
   class Reader {
   public:
     typedef List<List<T>> Reads;
@@ -464,6 +470,8 @@ private:
 
 template <typename T>
 struct List<T, Kind::BLOB> {
+  List() = delete;
+
   class Reader {
   public:
     typedef List<T> Reads;

compiler/src/c++-header.mustache

@@ -46,6 +46,8 @@ namespace {{namespaceName}} {
 {{#typeStructOrUnion}}
 
 struct {{typeFullName}} {
+  {{typeName}}() = delete;
+
   class Reader;
   class Builder;
 {{#typeStruct}}