Add back `UnparsedStmt`

If the user doesn't use any `import` declarations, there is no reason to parse their code at all, so having the option of falling back to `UnparsedStmt` can potentially save us some headaches down the road.

The new rule now is that if you have the "no checking" flag on, *and* the parser hasn't yet seen any `import` declarations, then it still used `UnparsedStmt` to avoid touching function bodies.
Otherwise, I go ahead and parse function bodies, and assume I can rewrite any code I can semantically understand.

1 files changed, 10 insertions, 0 deletions

diff --git a/source/slang/lower.cpp b/source/slang/lower.cpp
index 8a4b7a4b1..0d54faf0b 100644
--- a/source/slang/lower.cpp
+++ b/source/slang/lower.cpp
@@ -688,6 +688,16 @@ struct LoweringVisitor
         addStmt(loweredStmt);
     }
 
+    void visitUnparsedStmt(UnparsedStmt* stmt)
+    {
+        RefPtr<UnparsedStmt> loweredStmt = new UnparsedStmt();
+        lowerStmtFields(loweredStmt, stmt);
+
+        loweredStmt->tokens = stmt->tokens;
+
+        addStmt(loweredStmt);
+    }
+
     void visitCaseStmt(CaseStmt* stmt)
     {
         RefPtr<CaseStmt> loweredStmt = new CaseStmt();