Make SourceMap a value type (#2812)

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

* Moved JSON source map writing logic to JSONSourceMapUtil.

* Use ArtifactHandler to read/write SourceMaps.
Use ObjectCastableAdapter to hold SourceMap
Only serialize SourceMap <-> JSON on demand.

* Make some types swappable.

* BoxValue impl.

* Added asBoxValue.

* Remove const get funcs.

* Fix typo in asBoxValue.

* Fix another typo in asBoxValue.

* Slightly simplify conversion to blob of SourceMap.

* Small fix for asBoxValue

1 files changed, 8 insertions, 0 deletions

diff --git a/source/core/slang-string-slice-pool.cpp b/source/core/slang-string-slice-pool.cpp
index a0af3ba68..45cc811a3 100644
--- a/source/core/slang-string-slice-pool.cpp
+++ b/source/core/slang-string-slice-pool.cpp
@@ -41,6 +41,14 @@ void StringSlicePool::clear()
     }
 }
 
+void StringSlicePool::swapWith(ThisType& rhs)
+{
+    Swap(m_style, rhs.m_style);
+    m_slices.swapWith(rhs.m_slices);
+    m_map.swapWith(rhs.m_map);
+    m_arena.swapWith(rhs.m_arena);
+}
+
 StringSlicePool::Handle StringSlicePool::add(const Slice& slice)
 {
     const Handle* handlePtr = m_map.TryGetValue(slice);