First pass in using RapidJSON instead of Casablanca to parse JSON

RapidJSON is based off of commit d87b698d0fcc10a5f632ecbc80a9cb2a8fa094a5.

THIRD-PARTY-NOTICES.TXT

@@ -629,3 +629,22 @@ AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 SOFTWARE.
+
+
+License notice for RapidJSON
+----------------------------
+
+Tencent is pleased to support the open source community by making RapidJSON available.
+
+Copyright (C) 2015 THL A29 Limited, a Tencent company, and Milo Yip. All rights reserved.
+
+Licensed under the MIT License (the "License"); you may not use this file except
+in compliance with the License. You may obtain a copy of the License at
+
+http://opensource.org/licenses/MIT
+
+Unless required by applicable law or agreed to in writing, software distributed
+under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
+CONDITIONS OF ANY KIND, either express or implied. See the License for the
+specific language governing permissions and limitations under the License.
+

src/corehost/cli/comhost/CMakeLists.txt

@@ -9,7 +9,7 @@ set(DOTNET_PROJECT_NAME "comhost")
 
 # Include directories
 include_directories(../fxr)
-include_directories(../json/casablanca/include)
+include_directories(../json)
 
 # CMake does not recommend using globbing since it messes with the freshness checks
 set(SOURCES
@@ -18,16 +18,13 @@ set(SOURCES
     clsidmap.cpp
     ../redirected_error_writer.cpp
     ../fxr/fx_ver.cpp
-    ../json/casablanca/src/json/json.cpp
-    ../json/casablanca/src/json/json_parsing.cpp
-    ../json/casablanca/src/json/json_serialization.cpp
-    ../json/casablanca/src/utilities/asyncrt_utils.cpp
+    ../json_parser.cpp
 )
 
 set(HEADERS
     comhost.h
     ../fxr/fx_ver.h
-    ../json/casablanca/include/cpprest/json.h
+    ../json_parser.h
 )
 
 if(WIN32)

src/corehost/cli/comhost/clsidmap.cpp

@@ -12,8 +12,9 @@
 #include <wintrust.h>
 #include <Softpub.h>
 
-#include <cpprest/json.h>
-using namespace web;
+#include "rapidjson/document.h"
+#include "rapidjson/istreamwrapper.h"
+#include "json_parser.h"
 
 using comhost::clsid_map_entry;
 using comhost::clsid_map;
@@ -45,29 +46,21 @@ namespace
 
     clsid_map parse_stream(_Inout_ pal::istream_t &json_map_raw)
     {
-        skip_utf8_bom(&json_map_raw);
+        json_parser_t json;
 
-        // Parse JSON
-        json::value json_map;
-        try
-        {
-            json_map = json::value::parse(json_map_raw);
-        }
-        catch (const json::json_exception&)
+        if (!json.parse_stream(json_map_raw, _X("<embedded .clsidmap>")))
         {
             trace::error(_X("Embedded .clsidmap format is invalid"));
             throw HResultException{ StatusCode::InvalidConfigFile };
         }
 
-        json::object &json_obj = json_map.as_object();
-
         // Process JSON and construct a map
         HRESULT hr;
         clsid_map mapping;
-        for (std::pair<utility::string_t, json::value> &prop : json_obj)
+        for (auto &prop : json.document().GetObject())
         {
             CLSID clsidMaybe;
-            hr = string_to_clsid(prop.first, clsidMaybe);
+            hr = string_to_clsid(prop.name.GetString(), clsidMaybe);
             if (FAILED(hr))
             {
                 assert(false && "Invalid CLSID");
@@ -79,14 +72,14 @@ namespace
 
             e.clsid = clsidMaybe;
 
-            json::object &val = prop.second.as_object();
-            e.assembly = val.at(_X("assembly")).as_string();
-            e.type = val.at(_X("type")).as_string();
+            auto &val = prop.value.GetObject();
+            e.assembly = val[_X("assembly")].GetString();
+            e.type = val[_X("type")].GetString();
 
             // Check if a ProgID was defined.
-            auto prodIdMaybe = val.find(_X("progid"));
-            if (prodIdMaybe != val.cend())
-                e.progid = prodIdMaybe->second.as_string();
+            auto prodIdMaybe = val.FindMember(_X("progid"));
+            if (prodIdMaybe != val.MemberEnd())
+                e.progid = prodIdMaybe->value.GetString();
 
             mapping[clsidMaybe] = std::move(e);
         }