Add extra logits_processor and stopping_criteria

Author: abetlen

llama_cpp/llama.py

@@ -677,6 +677,8 @@ def _create_completion(
         mirostat_tau: float = 5.0,
         mirostat_eta: float = 0.1,
         model: Optional[str] = None,
+        stopping_criteria: Optional[StoppingCriteriaList] = None,
+        logits_processor: Optional[LogitsProcessorList] = None,
     ) -> Union[Iterator[Completion], Iterator[CompletionChunk]]:
         assert self.ctx is not None
 
@@ -739,6 +741,8 @@ def _create_completion(
             frequency_penalty=frequency_penalty,
             presence_penalty=presence_penalty,
             repeat_penalty=repeat_penalty,
+            stopping_criteria=stopping_criteria,
+            logits_processor=logits_processor,
         ):
             if token == self._token_eos:
                 text = self.detokenize(completion_tokens)
@@ -848,6 +852,11 @@ def _create_completion(
                 finish_reason = "length"
                 break
 
+        if stopping_criteria is not None and stopping_criteria(
+            list(self.eval_tokens), self.eval_logits[-1]
+        ):
+            finish_reason = "stop"
+
         if self.verbose:
             llama_cpp.llama_print_timings(self.ctx)
 
@@ -1049,6 +1058,8 @@ def create_completion(
         mirostat_tau: float = 5.0,
         mirostat_eta: float = 0.1,
         model: Optional[str] = None,
+        stopping_criteria: Optional[StoppingCriteriaList] = None,
+        logits_processor: Optional[LogitsProcessorList] = None,
     ) -> Union[Completion, Iterator[CompletionChunk]]:
         """Generate text from a prompt.
 
@@ -1091,6 +1102,8 @@ def create_completion(
             mirostat_tau=mirostat_tau,
             mirostat_eta=mirostat_eta,
             model=model,
+            stopping_criteria=stopping_criteria,
+            logits_processor=logits_processor,
         )
         if stream:
             chunks: Iterator[CompletionChunk] = completion_or_chunks
@@ -1118,6 +1131,8 @@ def __call__(
         mirostat_tau: float = 5.0,
         mirostat_eta: float = 0.1,
         model: Optional[str] = None,
+        stopping_criteria: Optional[StoppingCriteriaList] = None,
+        logits_processor: Optional[LogitsProcessorList] = None,
     ) -> Union[Completion, Iterator[CompletionChunk]]:
         """Generate text from a prompt.
 
@@ -1160,6 +1175,8 @@ def __call__(
             mirostat_tau=mirostat_tau,
             mirostat_eta=mirostat_eta,
             model=model,
+            stopping_criteria=stopping_criteria,
+            logits_processor=logits_processor,
         )
 
     def _convert_text_completion_to_chat(