Merge pull request #3923 from daksenik/master

Fixed operator++. Added CreateXXX for vector types.

include/flatbuffers/flatbuffers.h

@@ -288,7 +288,7 @@ public:
   }
 
   VectorIterator operator++(int) {
-    VectorIterator temp(data_);
+    VectorIterator temp(data_,0);
     data_ += IndirectHelper<T>::element_stride;
     return temp;
   }

src/idl_gen_cpp.cpp

@@ -458,6 +458,30 @@ class CppGenerator : public BaseGenerator {
                : field.value.constant;
   }
 
+  void GenSimpleParam(std::string &code, FieldDef &field) {
+    code += ",\n    " + GenTypeWire(field.value.type, " ", true);
+    code += field.name + " = ";
+    if (field.value.type.enum_def && IsScalar(field.value.type.base_type)) {
+      auto ev = field.value.type.enum_def->ReverseLookup(
+        static_cast<int>(StringToInt(field.value.constant.c_str())),
+        false);
+      if (ev) {
+        code += WrapInNameSpace(
+          field.value.type.enum_def->defined_namespace,
+          GetEnumVal(*field.value.type.enum_def, *ev, parser_.opts));
+      }
+      else {
+        code += GenUnderlyingCast(field, true, field.value.constant);
+      }
+    }
+    else if (field.value.type.base_type == BASE_TYPE_BOOL) {
+      code += field.value.constant == "0" ? "false" : "true";
+    }
+    else {
+      code += GenDefaultConstant(field);
+    }
+  }
+
   // Generate an accessor struct, builder structs & function for a table.
   void GenTable(StructDef &struct_def, std::string *code_ptr) {
     std::string &code = *code_ptr;
@@ -680,6 +704,7 @@ class CppGenerator : public BaseGenerator {
 
     // Generate a convenient CreateX function that uses the above builder
     // to create a table in one go.
+    bool gen_vector_pars = false;
     code += "inline flatbuffers::Offset<" + struct_def.name + "> Create";
     code += struct_def.name;
     code += "(flatbuffers::FlatBufferBuilder &_fbb";
@@ -687,24 +712,11 @@ class CppGenerator : public BaseGenerator {
          it != struct_def.fields.vec.end(); ++it) {
       auto &field = **it;
       if (!field.deprecated) {
-        code += ",\n   " + GenTypeWire(field.value.type, " ", true);
-        code += field.name + " = ";
-        if (field.value.type.enum_def && IsScalar(field.value.type.base_type)) {
-          auto ev = field.value.type.enum_def->ReverseLookup(
-              static_cast<int>(StringToInt(field.value.constant.c_str())),
-              false);
-          if (ev) {
-            code += WrapInNameSpace(
-                field.value.type.enum_def->defined_namespace,
-                GetEnumVal(*field.value.type.enum_def, *ev, parser_.opts));
-          } else {
-            code += GenUnderlyingCast(field, true, field.value.constant);
-          }
-        } else if (field.value.type.base_type == BASE_TYPE_BOOL) {
-          code += field.value.constant == "0" ? "false" : "true";
-        } else {
-          code += GenDefaultConstant(field);
+        if (field.value.type.base_type == BASE_TYPE_STRING ||
+            field.value.type.base_type == BASE_TYPE_VECTOR) {
+          gen_vector_pars = true;
         }
+        GenSimpleParam(code, field);
       }
     }
     code += ") {\n  " + struct_def.name + "Builder builder_(_fbb);\n";
@@ -720,6 +732,50 @@ class CppGenerator : public BaseGenerator {
       }
     }
     code += "  return builder_.Finish();\n}\n\n";
+
+    //Generate a CreateX function with vector types as parameters
+    if (gen_vector_pars) {
+      code += "inline flatbuffers::Offset<" + struct_def.name + "> Create";
+      code += struct_def.name;
+      code += "(flatbuffers::FlatBufferBuilder &_fbb";
+      for (auto it = struct_def.fields.vec.begin();
+      it != struct_def.fields.vec.end(); ++it) {
+        auto &field = **it;
+        if (!field.deprecated) {
+          if (field.value.type.base_type == BASE_TYPE_STRING) {
+            code += ",\n    const char *";
+            code += field.name + " = nullptr";
+          }
+          else if (field.value.type.base_type == BASE_TYPE_VECTOR) {
+            code += ",\n    const std::vector<";
+            code += GenTypeWire(field.value.type.VectorType(), "", false);
+            code += "> *" + field.name + " = nullptr";
+          } else {
+            GenSimpleParam(code, field);
+          }
+        }
+      }
+      code += ") {\n  ";
+      code += "return Create";
+      code += struct_def.name;
+      code += "(_fbb";
+      for (auto it = struct_def.fields.vec.begin();
+      it != struct_def.fields.vec.end(); ++it) {
+        auto &field = **it;
+        if (!field.deprecated) {
+          if (field.value.type.base_type == BASE_TYPE_STRING) {
+            code += ", " + field.name + " ? 0 : ";
+            code += "_fbb.CreateString(" + field.name + ")";
+          } else if (field.value.type.base_type == BASE_TYPE_VECTOR) {
+            code += ", " + field.name + " ? 0 : ";
+            code += "_fbb.CreateVector<";
+            code += GenTypeWire(field.value.type.VectorType(), "", false);
+            code += ">(*" + field.name + ")";
+          } else code += ", " + field.name;
+        }
+      }
+      code += ");\n}\n\n";
+    }
   }
 
   static void GenPadding(const FieldDef &field, std::string &code,

tests/monster_test_generated.h

@@ -215,6 +215,13 @@ inline flatbuffers::Offset<Stat> CreateStat(flatbuffers::FlatBufferBuilder &_fbb
   return builder_.Finish();
 }
 
+inline flatbuffers::Offset<Stat> CreateStat(flatbuffers::FlatBufferBuilder &_fbb,
+    const char *id = nullptr,
+    int64_t val = 0,
+    uint16_t count = 0) {
+  return CreateStat(_fbb, id ? 0 : _fbb.CreateString(id), val, count);
+}
+
 /// an example documentation comment: monster object
 struct Monster FLATBUFFERS_FINAL_CLASS : private flatbuffers::Table {
   enum {
@@ -457,6 +464,38 @@ inline flatbuffers::Offset<Monster> CreateMonster(flatbuffers::FlatBufferBuilder
   return builder_.Finish();
 }
 
+inline flatbuffers::Offset<Monster> CreateMonster(flatbuffers::FlatBufferBuilder &_fbb,
+    const Vec3 *pos = 0,
+    int16_t mana = 150,
+    int16_t hp = 100,
+    const char *name = nullptr,
+    const std::vector<uint8_t> *inventory = nullptr,
+    Color color = Color_Blue,
+    Any test_type = Any_NONE,
+    flatbuffers::Offset<void> test = 0,
+    const std::vector<const Test *> *test4 = nullptr,
+    const std::vector<flatbuffers::Offset<flatbuffers::String>> *testarrayofstring = nullptr,
+    const std::vector<flatbuffers::Offset<Monster>> *testarrayoftables = nullptr,
+    flatbuffers::Offset<Monster> enemy = 0,
+    const std::vector<uint8_t> *testnestedflatbuffer = nullptr,
+    flatbuffers::Offset<Stat> testempty = 0,
+    bool testbool = false,
+    int32_t testhashs32_fnv1 = 0,
+    uint32_t testhashu32_fnv1 = 0,
+    int64_t testhashs64_fnv1 = 0,
+    uint64_t testhashu64_fnv1 = 0,
+    int32_t testhashs32_fnv1a = 0,
+    uint32_t testhashu32_fnv1a = 0,
+    int64_t testhashs64_fnv1a = 0,
+    uint64_t testhashu64_fnv1a = 0,
+    const std::vector<uint8_t> *testarrayofbools = nullptr,
+    float testf = 3.14159f,
+    float testf2 = 3.0f,
+    float testf3 = 0.0f,
+    const std::vector<flatbuffers::Offset<flatbuffers::String>> *testarrayofstring2 = nullptr) {
+  return CreateMonster(_fbb, pos, mana, hp, name ? 0 : _fbb.CreateString(name), inventory ? 0 : _fbb.CreateVector<uint8_t>(*inventory), color, test_type, test, test4 ? 0 : _fbb.CreateVector<const Test *>(*test4), testarrayofstring ? 0 : _fbb.CreateVector<flatbuffers::Offset<flatbuffers::String>>(*testarrayofstring), testarrayoftables ? 0 : _fbb.CreateVector<flatbuffers::Offset<Monster>>(*testarrayoftables), enemy, testnestedflatbuffer ? 0 : _fbb.CreateVector<uint8_t>(*testnestedflatbuffer), testempty, testbool, testhashs32_fnv1, testhashu32_fnv1, testhashs64_fnv1, testhashu64_fnv1, testhashs32_fnv1a, testhashu32_fnv1a, testhashs64_fnv1a, testhashu64_fnv1a, testarrayofbools ? 0 : _fbb.CreateVector<uint8_t>(*testarrayofbools), testf, testf2, testf3, testarrayofstring2 ? 0 : _fbb.CreateVector<flatbuffers::Offset<flatbuffers::String>>(*testarrayofstring2));
+}
+
 inline bool VerifyAny(flatbuffers::Verifier &verifier, const void *union_obj, Any type) {
   switch (type) {
     case Any_NONE: return true;