fix: improve variable naming

Author: giladgd

src/evaluator/LlamaChatSession/LlamaChatSession.ts

@@ -343,7 +343,7 @@ export class LlamaChatSession {
     /** @internal */ private readonly _chatLock = {};
     /** @internal */ private _chatHistory: ChatHistoryItem[];
     /** @internal */ private _lastEvaluation?: LlamaChatResponse["lastEvaluation"];
-    /** @internal */ private _canUseLastEvaluationForCompletion: boolean = true;
+    /** @internal */ private _canUseContextWindowForCompletion: boolean = true;
     /** @internal */ private _chat: LlamaChat | null;
     /** @internal */ public _chatHistoryStateRef = {};
     /** @internal */ public readonly _preloadAndCompleteAbortControllers = new Set<AbortController>();
@@ -520,7 +520,7 @@ export class LlamaChatSession {
 
             const supportsParallelFunctionCalling = this._chat.chatWrapper.settings.functions.parallelism != null;
             const [abortController, disposeAbortController] = wrapAbortSignal(signal);
-            let lastEvaluation = this._canUseLastEvaluationForCompletion
+            let lastEvaluation = this._canUseContextWindowForCompletion
                 ? this._lastEvaluation
                 : undefined;
             let newChatHistory = appendUserMessageToChatHistory(this._chatHistory, prompt);
@@ -726,7 +726,7 @@ export class LlamaChatSession {
                     }
 
                     this._lastEvaluation = lastEvaluation;
-                    this._canUseLastEvaluationForCompletion = true;
+                    this._canUseContextWindowForCompletion = true;
                     this._chatHistory = newChatHistory;
                     this._chatHistoryStateRef = {};
 
@@ -883,7 +883,7 @@ export class LlamaChatSession {
                     contextWindow: asWithLastUserMessageRemoved(lastEvaluation.contextWindow),
                     contextShiftMetadata: lastEvaluation.contextShiftMetadata
                 };
-                this._canUseLastEvaluationForCompletion = this._chatHistory.at(-1)?.type === "user";
+                this._canUseContextWindowForCompletion = this._chatHistory.at(-1)?.type === "user";
 
                 if (!stopOnAbortSignal && metadata.stopReason === "abort" && abortController.signal?.aborted)
                     throw abortController.signal.reason;
@@ -923,6 +923,7 @@ export class LlamaChatSession {
         this._chatHistory = structuredClone(chatHistory);
         this._chatHistoryStateRef = {};
         this._lastEvaluation = undefined;
+        this._canUseContextWindowForCompletion = false;
     }
 
     /** Clear the chat history and reset it to the initial state. */