Increased performance of StringTable.__contains__.

Author: L'In20Cible

addons/source-python/packages/source-python/engines/sound.py

@@ -325,7 +325,7 @@ def is_precached(self):
         """
         # We can't use engine_sound.is_sound_precached here because it always
         #   returns True.
-        return string_tables.soundprecache[self.sample] != INVALID_STRING_INDEX
+        return self.sample in string_tables.soundprecache
 
 
 class StreamSound(_BaseSound):
@@ -372,5 +372,4 @@ def is_precached(self):
         """
         # We can't use engine_sound.is_sound_precached here because it always
         #   returns True.
-        index = string_tables.soundprecache[self._stream_sample]
-        return index != INVALID_STRING_INDEX
+        return self._stream_sample in string_tables.soundprecache

src/core/modules/stringtables/stringtables_wrap.cpp

@@ -150,6 +150,14 @@ int GetStringUserDataLength( INetworkStringTable *pTable, const char *string )
 	return GetStringIndexUserDataLength(pTable, index);
 }
 
+//---------------------------------------------------------------------------------
+// Returns whether or not the given string is in the table
+//---------------------------------------------------------------------------------
+bool __contains__( INetworkStringTable *pTable, const char *string )
+{
+	return pTable->FindStringIndex(string) != INVALID_STRING_INDEX;
+}
+
 //---------------------------------------------------------------------------------
 // Exposes INetworkStringTable.
 //---------------------------------------------------------------------------------
@@ -184,6 +192,11 @@ void export_stringtable(scope _stringtables)
 			"Returns the length of the table."
 		)
 
+		.def("__contains__",
+			&__contains__,
+			"Returns whether or not the given string is contained in the table."
+		)
+
 		.add_property("max_strings",
 			&INetworkStringTable::GetMaxStrings,
 			"Returns the max length of the table (read-only)."