Initial work on handling resources in structs during cross-compilation

- The basic idea is that during the "lowering" pass, some types (notably: aggregate types that contain resource variables) will get turned into "tuple" types, which are pseduo-types that aren't meant to survive lowering.

- An attempt to declare a variable with a tuple type expands into a tuple of declarations

- An attempt to reference such a tuple-ified variable leads to a tuple of expressions

- An attempt to extract a member from such a tuple expression will pick the appropriate sub-element

- Dereference a tuple by dereferencing the primary expression

- Expand a tuple in the argument list to a call into N arguments (by recursively flattening the tuple)

- Don't create tuple types when not generating GLSL

- Make sure to preserve the specialized type of a call expression through lowering, since emission of unchecked calls relies on that info.
  - TODO: maybe the infix/prefix/postifx/select information should come in as a side-band? Should we have modifiers on expressions?

- Make sure to offset the layout for a nested field based on teh base offset of its parent variable, when generating declarations for nested fields

1 files changed, 4 insertions, 1 deletions

diff --git a/source/slang/preprocessor.cpp b/source/slang/preprocessor.cpp
index a186ce201..a4cccf4f4 100644
--- a/source/slang/preprocessor.cpp
+++ b/source/slang/preprocessor.cpp
@@ -1921,6 +1921,9 @@ static Token ReadToken(Preprocessor* preprocessor)
     {
         // Look at the next raw token in the input.
         Token const& token = PeekRawToken(preprocessor);
+        if (token.Type == TokenType::EndOfFile)
+            return token;
+
 
         // If we have a directive (`#` at start of line) then handle it
         if ((token.Type == TokenType::Pound) && (token.flags & TokenFlag::AtStartOfLine))
@@ -1980,7 +1983,7 @@ static void FinalizePreprocessor(
     while (input)
     {
         PreprocessorInputStream* parent = input->parent;
-        DestroyInputStream(preprocessor, input);
+        EndInputStream(preprocessor, input);
         input = parent;
     }