diff --git a/App/lib/core/BuildPipeline.vp b/App/lib/core/BuildPipeline.vp
index c808f5d..682332f 100644
--- a/App/lib/core/BuildPipeline.vp
+++ b/App/lib/core/BuildPipeline.vp
@@ -207,13 +207,16 @@ def TranslateFileGetTrans(mb: memhub.MemBuddy | t.CPtr, file_path: str,
     if string.strstr(file_path, "includes") is not None:
         strict_mode = 0
     HandlesStruct.reset_visible_structs(mb, strict_mode)
+    # 提取 docstring（预注册阶段所有 App/includes 文件都被翻译，
+    # 保证跨模块 __doc__ 在正式翻译前已登记；查重幂等）
+    # 注意：必须在 tr.translate 之前扫描——translate 期间 mb 池大量分配
+    # IR 节点，AST 节点所在池块可能被复用覆盖（ASan 下遍历 tree 读
+    # 0xffffffffffffffff 崩溃），docstring 提取与翻译状态无关，提前安全。
+    if gen is not None:
+        gen.extract_module_docstrings(tree, sha1_val)
     ret: int = tr.translate(tree)
     if ret != 0:
         return None
-    # 提取 docstring（预注册阶段所有 App/includes 文件都被翻译，
-    # 保证跨模块 __doc__ 在正式翻译前已登记；查重幂等）
-    if gen is not None:
-        gen.extract_module_docstrings(tree, sha1_val)
     return tr
 
 
diff --git a/App/lib/core/Gen/ExprGenMixin.vp b/App/lib/core/Gen/ExprGenMixin.vp
index 262bd4f..f932342 100644
--- a/App/lib/core/Gen/ExprGenMixin.vp
+++ b/App/lib/core/Gen/ExprGenMixin.vp
@@ -3854,7 +3854,7 @@ class ExprGenMixin:
             if kd == ast.ASTKind.FunctionDef:
                 fd: ast.FunctionDef | t.CPtr = (ast.FunctionDef | t.CPtr)(child)
                 if fd is not None and fd.name is not None:
-                    fd_body: list[ast.AST | t.CPtr] | t.CPtr = fd.body
+                    fd_body: list[ast.AST | t.CPtr] | t.CPtr = fd.children
                     fdoc: str = self._extract_docstring_from_body(fd_body)
                     if fdoc is not None:
                         self.register_docstring(module_sha1, fd.name, fdoc)
@@ -3862,12 +3862,12 @@ class ExprGenMixin:
                 cd: ast.ClassDef | t.CPtr = (ast.ClassDef | t.CPtr)(child)
                 if cd is None or cd.name is None:
                     continue
-                cd_body0: list[ast.AST | t.CPtr] | t.CPtr = cd.body
+                cd_body0: list[ast.AST | t.CPtr] | t.CPtr = cd.children
                 cdoc: str = self._extract_docstring_from_body(cd_body0)
                 if cdoc is not None:
                     self.register_docstring(module_sha1, cd.name, cdoc)
                 # 类方法 docstring（key="{ClassName}.{method}"）
-                cd_body: list[ast.AST | t.CPtr] | t.CPtr = cd.body
+                cd_body: list[ast.AST | t.CPtr] | t.CPtr = cd.children
                 if cd_body is not None:
                     cbn: t.CSizeT = len(cd_body)
                     for mi in range(cbn):
@@ -3877,7 +3877,7 @@ class ExprGenMixin:
                         mfd: ast.FunctionDef | t.CPtr = (ast.FunctionDef | t.CPtr)(m)
                         if mfd is None or mfd.name is None:
                             continue
-                        mdoc: str = self._extract_docstring_from_body(mfd.body)
+                        mdoc: str = self._extract_docstring_from_body(mfd.children)
                         if mdoc is not None:
                             cl_nl: t.CSizeT = string.strlen(cd.name)
                             mt_nl: t.CSizeT = string.strlen(mfd.name)