spaces_per_indent_ = spaces_per_indent;
  }

  void AddLineWithIndent(const string &line);
  void AddLineWithoutIndent(const string &line);
  void AddBlankLine();
  void IncreaseIndent();
  void DecreaseIndent();

 private:
  struct Line {
    int indent;
    string text;
  };

  void ValidateAndAddLine(int indent_level, const string &raw_line);

  int spaces_per_indent_ = 2;
  int current_indent_ = 0;

  context_.code.AddLineWithIndent(absl::StrCat(text, " {"));
  context_.code.IncreaseIndent();
  return *this;
}

Renderer& Renderer::BlockClose(const string& text) {
  context_.code.DecreaseIndent();
  context_.code.AddLineWithIndent(absl::StrCat("}", text));
  return *this;
}

}  // namespace cpp
}  // namespace generator

  ValidateAndAddLine(0, line);
}

void SourceCode::AddBlankLine() { ValidateAndAddLine(0, ""); }

void SourceCode::IncreaseIndent() { current_indent_++; }

void SourceCode::DecreaseIndent() { current_indent_--; }

void SourceCode::ValidateAndAddLine(int indent, const string& raw_line) {
  StringPiece line(raw_line);
  bool had_trailing_newline = str_util::ConsumeSuffix(&line, "\n");