Passing source to Downstream compilation as artifacts (#2382)

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

* Make DownstreamCompileOptions use POD types.

* CharSliceAllocator -> SliceAllocator
Added SliceConverter
CharSliceCaster -> SliceCaster

* First attempt at zero terminating around blobs.

* Fix clang warning.

* Add SlangTerminatedChars
Make Blob implementations support it.
Make most blobs 'terminated'.

* Fix bug setting up sourceFiles for CommandLineDownstreamCompiler.

* Traffic in TerminatedCharSlice for sourceFiles.
Use ArtifactDesc to generate temporary file names for source.

* Fix typo in testing for shared library/C++.

* Working with source being passed as artifacts to DownstreamCompiler.

* Use artifacts in SourceManager/SourceFile.

* Support infering extension from the original file extension.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/slang/slang.cpp b/source/slang/slang.cpp
index 6101a5298..a9868898e 100644
--- a/source/slang/slang.cpp
+++ b/source/slang/slang.cpp
@@ -2575,6 +2575,8 @@ void FrontEndCompileRequest::addTranslationUnitSourceBlob(
     // The path specified may or may not be a file path - mark as being constructed 'FromString'.
     SourceFile* sourceFile = getSourceManager()->createSourceFileWithBlob(PathInfo::makeFromString(path), sourceBlob);
     
+    sourceFile->maybeAddArtifact(nullptr);
+
     addTranslationUnitSourceFile(translationUnitIndex, sourceFile);
 }
 
@@ -2586,6 +2588,8 @@ void FrontEndCompileRequest::addTranslationUnitSourceString(
     // The path specified may or may not be a file path - mark as being constructed 'FromString'.
     SourceFile* sourceFile = getSourceManager()->createSourceFileWithString(PathInfo::makeFromString(path), source);
 
+    sourceFile->maybeAddArtifact(nullptr);
+
     addTranslationUnitSourceFile(translationUnitIndex, sourceFile);
 }
 
@@ -2617,6 +2621,9 @@ void FrontEndCompileRequest::addTranslationUnitSourceFile(
 
     // Was loaded from the specified path
     SourceFile* sourceFile = getSourceManager()->createSourceFileWithBlob(pathInfo, sourceBlob);
+
+    sourceFile->maybeAddArtifact(getLinkage()->getFileSystemExt());
+
     addTranslationUnitSourceFile(translationUnitIndex, sourceFile);
 }