PersistentJSONValue (#2028)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Use 'Process' to communicate with an command line tool.

* Remove slang-win-stream

* Tidy up windows ProcessUtil.

* First version of BufferedReadStream.

* Windows working IPC for steams.

* Test proxy count option.

* Split Process/ProcessUtil. Process is platform dependant. ProcessUtil are functions that are platform independent.

* First implementation of Unix Process interface.

* Unix process compiles on cygwin.

* Fix typo in unix process.

* Separate unix pipe stream error of invalid access, from pipe availability.

* Fix in standard line extraction.

* Make fd non blocking.

* Fix issues with Windows Process streams.

* Added UnixPipe.

* Some fixes around UnixPipeStream.

* Make a unix stream closed explicit.

* Hack to debug linux process/stream.

* Revert to old linux pipe handling.

* Pass executable path for unit tests.
Split out CommandLine into own source.

* Small improvements in process/command line.

* Check process behavior with crash.

* Make stderr and stdout unbuffered for crash testing.

* Only turn disable buffering in crash test.

* Disable crash test on CI.

* Fix crash on clang/linux.

* Enable crash test.
Remove _appendBuffer as can use StreamUtil functionality.

* Added inital processing for http headers.

* Small improvements to HttpHeader.

* First pass HTTPPacketConnection working on windows.

* Enable other Process communication tests.

* Update comments.

* WIP JSON RPC.

* Add terminate to Process.
Made JSONRPC a Util.

* Small tidy up around HTTPPacketConnection.

* Improve process termination options.

* WIP for test-server.

* Add diagnostics error handling to test-server.

* Improved JSON support.
Parsing/creating JSON-RPC messages.

* WIP JSONRPC parsing.

* First pass RttiInfo support.

* WIP converting between JSON/native types.

* Project files.

* Split out RttiUtil.
Made RttiInfo constuction thread safe.

* WIP RTTI<->JSON.

* Add diagnostics to JSON<->native conversions.

* Make RttiInfo for structs globals. Avoids problem around derived types (like pointers), being able to cause an abort.

* Add pointer support to RTTI.
Fixed some compilation issues on linux.

* Add fixed array support.

* Added Rtti unit test.

* Add rtti unit test.

* Split out quoted/unquoted key handling.
Fix bugs in JSON value/container.
Added JSON native test.

* Make default array allocator use malloc/free.
Remove the new[] handler (doesn't work on visuals studio).

* Fix for linux warning.

* Remove some test code.

* Fix issues on x86 win.

* Fix warning on aarch64.

* Fix some bugs in JSON parsing/handling.
Make Rtti work copy/dtor/ctor struct types.

* Testing JSON<->native with fixed array.
Make makeArrayView explicit if it's just a single value.
Added array type.

* Fix getting arrayView.

* Improve JSON diagnostic name.

* First pass refactor using Rtti for JSON RPC.

* First pass of test server using RTTI/JSON-RPC.

* Added JSONRPCConnection.

* Fix some naming issues.

* First pass of test-server working.

* Added unit test support for JSON-RPC test server.

* Fix compilation issues on linux around template handling.

* Typo fix.

* Fix a bug around SourceLoc lookup with JSONContainer.

* Set the console type to console for ISlangWriters.

* Small improvements to test-server.

* Small improvements in test-server.

* Small fix.

* Remove test-proxy. Make test-process a process that can be used to unit test 'Process'.
Adding mechanism to control spawning that will create a new process for every test.

* Ability to remove source manager for JSONValue.

* WIP SimpleJSONValue.

* Add PersistentJSONValue

* Testing around PersistentJSONValue.
Bug fixes.

* Small code improvements.

1 files changed, 40 insertions, 0 deletions

diff --git a/tools/slang-unit-test/unit-test-json.cpp b/tools/slang-unit-test/unit-test-json.cpp
index 2d2874cc8..b861465c8 100644
--- a/tools/slang-unit-test/unit-test-json.cpp
+++ b/tools/slang-unit-test/unit-test-json.cpp
@@ -316,5 +316,45 @@ SLANG_UNIT_TEST(json)
 
         SLANG_CHECK(container->areEqual(a, c));
     }
+
+    {
+        RefPtr<JSONContainer> container = new JSONContainer(&sourceManager);
+        const char aText[] = "{ \"a\" : \"Hi!\", \"b\" : 20.0, \"c\" : \"Hello\", \"d\" : 30, \"e\": null, \"f\": true }";
+
+        JSONBuilder builder(container);
+        SLANG_CHECK(SLANG_SUCCEEDED(_parse(aText, &sink, &builder)));
+        const JSONValue rootValue = builder.getRootValue();
+
+        List<PersistentJSONValue> values;
+
+        for (char c = 'a'; c <= 'f'; c++)
+        {
+            const char name[] = { c, 0 };
+            JSONKey key = container->getKey(UnownedStringSlice(name, 1));
+            auto value = container->findObjectValue(rootValue, key);
+
+            SLANG_CHECK(value.type != JSONValue::Type::Invalid);
+
+            PersistentJSONValue persistentValue(value, container);
+            values.add(persistentValue);
+
+            PersistentJSONValue copyValue(persistentValue);
+            PersistentJSONValue assignValue;
+            assignValue = persistentValue;
+
+            SLANG_CHECK(copyValue == persistentValue);
+            SLANG_CHECK(assignValue == persistentValue);
+        }
+
+        // Destroy the container
+        container.setNull();
+
+        SLANG_CHECK(values[0].getSlice() == "Hi!");
+        SLANG_CHECK(values[1].asFloat() == 20.0f);
+        SLANG_CHECK(values[2].getSlice() == "Hello");
+        SLANG_CHECK(values[3].asInteger() == 30);
+        SLANG_CHECK(values[4].type == JSONValue::Type::Null);
+        SLANG_CHECK(values[5].asBool() == true);
+    }
 }