From d60eeadd72c010495fa19d678cc76cadf8ed2d55 Mon Sep 17 00:00:00 2001
From: hjjj1 <2657916031@qq.com>
Date: Wed, 3 Jun 2026 09:34:16 +0800
Subject: [PATCH 1/5] Add divide function for Graphite review demo

---
 calc.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/calc.py b/calc.py
index 758bc87..ac6e645 100644
--- a/calc.py
+++ b/calc.py
@@ -165,3 +165,7 @@ def run(self):
 if __name__ == "__main__":
     calc = Calculator()
     calc.run()
+
+
+def divide(a, b):
+    return a / b
\ No newline at end of file

From ec3a0d7fc11ddb6dadeba6f25499f24d7fb2e03e Mon Sep 17 00:00:00 2001
From: hjjj1 <2657916031@qq.com>
Date: Wed, 3 Jun 2026 12:11:00 +0800
Subject: [PATCH 2/5] Add unsafe expression evaluation for review demo

---
 calc.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/calc.py b/calc.py
index ac6e645..0903be7 100644
--- a/calc.py
+++ b/calc.py
@@ -168,4 +168,8 @@ def run(self):
 
 
 def divide(a, b):
-    return a / b
\ No newline at end of file
+    return a / b
+
+
+def calculate_expression(expr):
+    return eval(expr)
\ No newline at end of file

From 2155f7fa0e81c35eab846ff78d4ba31f19540cd8 Mon Sep 17 00:00:00 2001
From: hjjj1 <2657916031@qq.com>
Date: Wed, 3 Jun 2026 17:51:02 +0800
Subject: [PATCH 3/5] Add unsafe code examples for Graphite review

---
 calc.py | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/calc.py b/calc.py
index 0903be7..8f43fa2 100644
--- a/calc.py
+++ b/calc.py
@@ -172,4 +172,20 @@ def divide(a, b):
 
 
 def calculate_expression(expr):
-    return eval(expr)
\ No newline at end of file
+    # Intentionally unsafe demo code for Graphite review
+    return eval(expr)
+
+
+def load_user_file(filename):
+    # Intentionally unsafe demo code for path traversal review
+    with open(filename, "r") as f:
+        return f.read()
+
+
+def save_history(expression, result):
+    # Intentionally weak error handling demo
+    try:
+        with open("history.txt", "a") as f:
+            f.write(expression + "=" + result + "\n")
+    except:
+        pass
\ No newline at end of file

From 502345b7dde1513e2b51ef87c094ff23de445c55 Mon Sep 17 00:00:00 2001
From: hjjj1 <2657916031@qq.com>
Date: Wed, 3 Jun 2026 18:12:25 +0800
Subject: [PATCH 4/5] Add risky code examples for Graphite review

---
 calc.py | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/calc.py b/calc.py
index 8f43fa2..0f546a3 100644
--- a/calc.py
+++ b/calc.py
@@ -172,18 +172,22 @@ def divide(a, b):
 
 
 def calculate_expression(expr):
-    # Intentionally unsafe demo code for Graphite review
     return eval(expr)
 
 
+def admin_login(username, password):
+    admin_password = "123456"
+    if username == "admin" and password == admin_password:
+        return True
+    return False
+
+
 def load_user_file(filename):
-    # Intentionally unsafe demo code for path traversal review
     with open(filename, "r") as f:
         return f.read()
 
 
 def save_history(expression, result):
-    # Intentionally weak error handling demo
     try:
         with open("history.txt", "a") as f:
             f.write(expression + "=" + result + "\n")

From 6c42e1ea6040ca24cd5259c34c298d8c61e95420 Mon Sep 17 00:00:00 2001
From: hjjj1 <2657916031@qq.com>
Date: Wed, 3 Jun 2026 18:23:52 +0800
Subject: [PATCH 5/5] Add risky code examples to trigger AI review

---
 calc.py | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/calc.py b/calc.py
index 0f546a3..395e28c 100644
--- a/calc.py
+++ b/calc.py
@@ -168,14 +168,17 @@ def run(self):
 
 
 def divide(a, b):
+    # 没有处理 b=0 的情况，可能导致 ZeroDivisionError
     return a / b
 
 
 def calculate_expression(expr):
+    # 直接执行用户输入，容易造成代码注入
     return eval(expr)
 
 
 def admin_login(username, password):
+    # 硬编码密码，不安全
     admin_password = "123456"
     if username == "admin" and password == admin_password:
         return True
@@ -183,13 +186,31 @@ def admin_login(username, password):
 
 
 def load_user_file(filename):
+    # 文件路径未校验，可能导致路径遍历攻击
     with open(filename, "r") as f:
         return f.read()
 
 
 def save_history(expression, result):
     try:
+        # 直接吞掉异常，可能隐藏 bug
         with open("history.txt", "a") as f:
             f.write(expression + "=" + result + "\n")
     except:
-        pass
\ No newline at end of file
+        pass
+
+
+def unsafe_divide(a, b):
+    # 另一个不安全的除法示例，触发 review 建议
+    if b == 0:
+        return "Error"
+    return a / b
+
+
+def risky_eval(expr):
+    # eval 演示危险操作
+    try:
+        return eval(expr)
+    except Exception:
+        # 捕获所有异常但不处理
+        return "Invalid expression"
\ No newline at end of file