From efe9761f80e4f76edb06bb526d3f6bf036075f35 Mon Sep 17 00:00:00 2001
From: Daniel Lemire <lemire@gmail.com>
Date: Wed, 19 May 2021 12:23:17 -0400
Subject: [PATCH] Fixing issue 1579. (#1580)

---
 .../simdjson/generic/ondemand/serialization.h | 22 +++++++++++++++++++
 tests/ondemand/ondemand_tostring_tests.cpp    | 16 +++++++++++++-
 2 files changed, 37 insertions(+), 1 deletion(-)

diff --git a/include/simdjson/generic/ondemand/serialization.h b/include/simdjson/generic/ondemand/serialization.h
index df968e03..1e17782e 100644
--- a/include/simdjson/generic/ondemand/serialization.h
+++ b/include/simdjson/generic/ondemand/serialization.h
@@ -201,4 +201,26 @@ inline simdjson::simdjson_result<std::string> to_string(simdjson::SIMDJSON_IMPLE
     return std::string(answer.data(), answer.size());
 }
 
+#if SIMDJSON_EXCEPTIONS
+
+inline std::string to_string(simdjson_result<simdjson::SIMDJSON_IMPLEMENTATION::ondemand::document> x) {
+    if (x.error()) { throw simdjson_error(x.error()); }
+    return to_string(x.value());
+}
+
+inline std::string to_string(simdjson_result<simdjson::SIMDJSON_IMPLEMENTATION::ondemand::value> x) {
+    if (x.error()) { throw simdjson_error(x.error()); }
+    return to_string(x.value());
+}
+
+inline std::string to_string(simdjson_result<simdjson::SIMDJSON_IMPLEMENTATION::ondemand::object> x) {
+    if (x.error()) { throw simdjson_error(x.error()); }
+    return to_string(x.value());
+}
+
+inline std::string to_string(simdjson_result<simdjson::SIMDJSON_IMPLEMENTATION::ondemand::array> x) {
+    if (x.error()) { throw simdjson_error(x.error()); }
+    return to_string(x.value());
+}
+#endif
 } // namespace simdjson
diff --git a/tests/ondemand/ondemand_tostring_tests.cpp b/tests/ondemand/ondemand_tostring_tests.cpp
index 16c33abb..b4d82b8c 100644
--- a/tests/ondemand/ondemand_tostring_tests.cpp
+++ b/tests/ondemand/ondemand_tostring_tests.cpp
@@ -13,6 +13,8 @@
 #include <vector>
 
 #include "simdjson.h"
+using namespace simdjson;
+
 #include "test_ondemand.h"
 namespace tostring_tests {
 const char *test_files[] = {
@@ -22,6 +24,16 @@ const char *test_files[] = {
 #if SIMDJSON_EXCEPTIONS
 
 
+bool minify_demo() {
+  TEST_START();
+  ondemand::parser parser;
+  auto cars_json = R"( { "test": "result"  }  )"_padded;
+  ondemand::document doc;
+  ASSERT_SUCCESS( parser.iterate(cars_json).get(doc) );
+  std::cout << simdjson::to_string(doc["test"]) << std::endl;
+  TEST_SUCCEED();
+}
+
 /**
  * The general idea of these tests if that if you take a JSON file,
  * load it, then convert it into a string, then parse that, and
@@ -73,8 +85,9 @@ bool minify_test() {
       return false;
     }
   }
-  return true;
+  TEST_SUCCEED();
 }
+
 #endif // SIMDJSON_EXCEPTIONS
 
 bool load_to_string_exceptionless(const char *filename) {
@@ -136,6 +149,7 @@ bool minify_exceptionless_test() {
 bool run() {
   return
 #if SIMDJSON_EXCEPTIONS
+      minify_demo() &&
       minify_test() &&
 #endif // SIMDJSON_EXCEPTIONS
       minify_exceptionless_test() &&