io.hpp: avoid dependency to proj_json_streaming_writer.hpp (fixes #2182) (#2183)

1 files changed, 17 insertions, 15 deletions

diff --git a/src/iso19111/coordinatesystem.cpp b/src/iso19111/coordinatesystem.cpp
index fc4b7492..2bfe30e6 100644
--- a/src/iso19111/coordinatesystem.cpp
+++ b/src/iso19111/coordinatesystem.cpp
@@ -40,6 +40,8 @@
 #include "proj/internal/internal.hpp"
 #include "proj/internal/io_internal.hpp"
 
+#include "proj_json_streaming_writer.hpp"
+
 #include <map>
 #include <memory>
 #include <set>
@@ -396,26 +398,26 @@ void CoordinateSystemAxis::_exportToWKT(io::WKTFormatter *formatter, int order,
 void CoordinateSystemAxis::_exportToJSON(
     io::JSONFormatter *formatter) const // throw(FormattingException)
 {
-    auto &writer = formatter->writer();
+    auto writer = formatter->writer();
     auto objectContext(
         formatter->MakeObjectContext("Axis", !identifiers().empty()));
 
-    writer.AddObjKey("name");
-    writer.Add(nameStr());
+    writer->AddObjKey("name");
+    writer->Add(nameStr());
 
-    writer.AddObjKey("abbreviation");
-    writer.Add(abbreviation());
+    writer->AddObjKey("abbreviation");
+    writer->Add(abbreviation());
 
-    writer.AddObjKey("direction");
-    writer.Add(direction().toString());
+    writer->AddObjKey("direction");
+    writer->Add(direction().toString());
 
     const auto &l_unit(unit());
     if (l_unit == common::UnitOfMeasure::METRE ||
         l_unit == common::UnitOfMeasure::DEGREE) {
-        writer.AddObjKey("unit");
-        writer.Add(l_unit.name());
+        writer->AddObjKey("unit");
+        writer->Add(l_unit.name());
     } else if (l_unit.type() != common::UnitOfMeasure::Type::NONE) {
-        writer.AddObjKey("unit");
+        writer->AddObjKey("unit");
         l_unit._exportToJSON(formatter);
     }
 
@@ -573,16 +575,16 @@ void CoordinateSystem::_exportToWKT(
 void CoordinateSystem::_exportToJSON(
     io::JSONFormatter *formatter) const // throw(FormattingException)
 {
-    auto &writer = formatter->writer();
+    auto writer = formatter->writer();
     auto objectContext(formatter->MakeObjectContext("CoordinateSystem",
                                                     !identifiers().empty()));
 
-    writer.AddObjKey("subtype");
-    writer.Add(getWKT2Type(true));
+    writer->AddObjKey("subtype");
+    writer->Add(getWKT2Type(true));
 
-    writer.AddObjKey("axis");
+    writer->AddObjKey("axis");
     {
-        auto axisContext(writer.MakeArrayContext(false));
+        auto axisContext(writer->MakeArrayContext(false));
         const auto &l_axisList = axisList();
         for (auto &axis : l_axisList) {
             formatter->setOmitTypeInImmediateChild();