Added NativeStringType (#2252)

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

* Use TerminatedUnownedStringSlice for literals in output C++.

* Remove Escape/Unescape functions used in slang-token-reader.cpp
Add target type of 'host-cpp' etc to map to the target types.

* Fix some corner cases around string encoding.

* Added unit test for string escaping.
Fixed some assorted escaping bugs.

* Updated test output.

* Added decode test.

* Stop using hex output, to get around 'greedy' aspect. Use octal instead.

1 files changed, 14 insertions, 2 deletions

diff --git a/source/slang/slang-emit-cpp.cpp b/source/slang/slang-emit-cpp.cpp
index 9887f1ba6..482ada394 100644
--- a/source/slang/slang-emit-cpp.cpp
+++ b/source/slang/slang-emit-cpp.cpp
@@ -532,6 +532,11 @@ SlangResult CPPSourceEmitter::calcTypeName(IRType* type, CodeGenTarget target, S
             out << "TypeInfo*";
             return SLANG_OK;
         }
+        case kIROp_NativeStringType:
+        {
+            out << "const char*";
+            return SLANG_OK;
+        }
         case kIROp_StringType:
         {
             out << "String";
@@ -2411,8 +2416,15 @@ bool CPPSourceEmitter::tryEmitInstExprImpl(IRInst* inst, const EmitOpInfo& inOut
         }
         case kIROp_StringLit:
         {
-            m_writer->emit("String(");
-            m_writer->emit(Slang::Misc::EscapeStringLiteral(as<IRStringLit>(inst)->getStringSlice()));
+            m_writer->emit("toTerminatedSlice(");
+
+            auto handler = StringEscapeUtil::getHandler(StringEscapeUtil::Style::Cpp);
+            
+            StringBuilder buf;
+            const auto slice = as<IRStringLit>(inst)->getStringSlice();
+            StringEscapeUtil::appendQuoted(handler, slice, buf);
+            m_writer->emit(buf);
+
             m_writer->emit(")");
             return true;
         }