Control container serialization with SerialOptionFlags (#1550)

* Test if blob is returned.

* Rename serialize files so can be grouped.

* StringRepresentationCache -> SerialStringTable

* Split out SerialStringTable from slang-serialize-ir

* First pass at reorganizing serialization/containers. Remain some issues about debug info.

* Fix bug in calculating sourceloc.

* Improve calcFixSourceLoc

* Make allocations for payload RiffContainer align to at least 8 bytes. This is important for read, if the payload can contain 8 byte aligned data. Note this has no effect on Riff file format alignment rules.

* Improve comments around RiffContainer and alignment.

* Remove SerialStringTable, can just use StringSlicePool instead.

* Add flags to control what is output in SerialContainer.
Turn off AST output for obfuscated code.
Lazily create astClasses when doing write container serialization.

* Typo fix for Clang/Linux.

1 files changed, 7 insertions, 0 deletions

diff --git a/source/slang/slang-compiler.cpp b/source/slang/slang-compiler.cpp
index d8da642f4..3855eda68 100755
--- a/source/slang/slang-compiler.cpp
+++ b/source/slang/slang-compiler.cpp
@@ -2357,6 +2357,13 @@ SlangResult dissassembleDXILUsingDXC(
         {
             options.optionFlags |= SerialOptionFlag::DebugInfo;
         }
+        if (linkage->m_obfuscateCode)
+        {
+            // If code is obfuscated, we *disable* AST output as it is not obfuscated and will reveal
+            // too much about IR.
+            // Also currently only IR is needed.
+            options.optionFlags &= ~SerialOptionFlag::ASTModule;
+        }
 
         {
             RiffContainer container;