Add base for StructuredDataDefDumper

src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.cpp

@@ -0,0 +1,43 @@
+#include "StructuredDataDefDumper.h"
+
+#include <cassert>
+
+StructuredDataDefDumper::StructuredDataDefDumper(std::ostream& stream)
+    : AbstractTextDumper(stream),
+      m_flags{}
+{
+}
+
+void StructuredDataDefDumper::BeginVersion(const int version)
+{
+    assert(!m_flags.m_in_version);
+    if (m_flags.m_in_version)
+        return;
+
+    if (m_flags.m_empty_line_before_version)
+        m_stream << "\n";
+    else
+        m_flags.m_empty_line_before_version = true;
+
+    Indent();
+    m_stream << "version " << version << "\n";
+
+    Indent();
+    m_stream << "{\n";
+
+    IncIndent();
+
+    m_flags.m_in_version = true;
+}
+
+void StructuredDataDefDumper::EndVersion()
+{
+    assert(m_flags.m_in_version);
+    if (!m_flags.m_in_version)
+        return;
+
+    DecIndent();
+    Indent();
+    m_stream << "}\n";
+    m_flags.m_in_version = false;
+}

src/ObjWriting/Dumping/StructuredDataDef/StructuredDataDefDumper.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#include "Dumping/AbstractTextDumper.h"
+
+class StructuredDataDefDumper : AbstractTextDumper
+{
+    struct
+    {
+        bool m_in_version : 1;
+        bool m_empty_line_before_version : 1;
+    } m_flags;
+
+public:
+    explicit StructuredDataDefDumper(std::ostream& stream);
+
+    void BeginVersion(int version);
+    void EndVersion();
+};