LLM output mis-indents the first line of the patch

[kgilpin]

Possibly the fix should be in appmap-js?

LLM emits the following patch file. The first line of the patch is un-indented (indented at level 0).

I'll help implement the solution to fix the Q object deconstruction issue. Based on the problem description, we need to modify the `deconstruct()` method in `django/utils/deconstruct.py` to handle boolean expressions consistently.

The key change is to remove the special case handling for single-child Q objects and always return args for Q objects. Here's the implementation:

<change>
<file change-number-for-this-file="1">/home/runner/work/navie-benchmark/navie-benchmark/solve/django__django-14140/source/django/utils/deconstruct.py</file>
<original line-count="14" no-ellipsis="true"><![CDATA[
def deconstruct(obj):
            """
            Return a 3-tuple of class import path, positional arguments,
            and keyword arguments.
            """
            # Fallback version
            if path:
                module_name, _, name = path.rpartition('.')
            else:
                module_name = obj.__module__
                name = obj.__class__.__name__
            # Make sure it's actually there and not an inner class
            module = import_module(module_name)
            if not hasattr(module, name):
]]></original>
<modified line-count="14" no-ellipsis="true"><![CDATA[
def deconstruct(obj):
            """
            Return a 3-tuple of class import path, positional arguments,
            and keyword arguments.
            """
            # Fallback version
            if path:
                module_name, _, name = path.rpartition('.')
            else:
                module_name = obj.__module__
                name = obj.__class__.__name__
            # Make sure it's actually there and not an inner class
            module = import_module(module_name)
            if not hasattr(module, name):
]]></modified>
</change>

<change>
<file change-number-for-this-file="2">/home/runner/work/navie-benchmark/navie-benchmark/solve/django__django-14140/source/django/utils/deconstruct.py</file>
<original line-count="9" no-ellipsis="true"><![CDATA[
            return (
                path or '%s.%s' % (obj.__class__.__module__, name),
                obj._constructor_args[0],
                obj._constructor_args[1],
            )

        klass.__new__ = staticmethod(__new__)
        klass.deconstruct = deconstruct

        return klass
]]></original>
<modified line-count="9" no-ellipsis="true"><![CDATA[
            return (
                path or '%s.%s' % (obj.__class__.__module__, name),
                tuple(obj._constructor_args[0]),
                obj._constructor_args[1],
            )

        klass.__new__ = staticmethod(__new__)
        klass.deconstruct = deconstruct

        return klass
]]></modified>
</change>

The key changes are:

1. In the return statement, I've wrapped `obj._constructor_args[0]` with `tuple()` to ensure that the positional arguments are always returned as a tuple, regardless of whether there's one item or many.

2. This change ensures that boolean expressions like Exists() will be properly handled since they'll always be treated as positional arguments in a tuple, rather than trying to unpack them as key-value pairs.

The rest of the deconstructible decorator functionality remains unchanged, as the issue was specifically with how Q objects' children were being packaged during deconstruction.

This change maintains backward compatibility for most use cases while fixing the boolean expression handling issue. The only potential impact would be for code that explicitly depends on the undocumented behavior of single-child Q objects being deconstructed into kwargs.

The resulting output is the following patch file:

diff --git a/django/utils/deconstruct.py b/django/utils/deconstruct.py
index aa952f6..3e8036a 100644
--- a/django/utils/deconstruct.py
+++ b/django/utils/deconstruct.py
@@ -18,19 +18,19 @@ def deconstructible(*args, path=None):
             return obj

         def deconstruct(obj):
-            """
-            Return a 3-tuple of class import path, positional arguments,
-            and keyword arguments.
-            """
-            # Fallback version
-            if path:
-                module_name, _, name = path.rpartition('.')
-            else:
-                module_name = obj.__module__
-                name = obj.__class__.__name__
-            # Make sure it's actually there and not an inner class
-            module = import_module(module_name)
-            if not hasattr(module, name):
+                    """
+                    Return a 3-tuple of class import path, positional arguments,
+                    and keyword arguments.
+                    """
+                    # Fallback version
+                    if path:
+                        module_name, _, name = path.rpartition('.')
+                    else:
+                        module_name = obj.__module__
+                        name = obj.__class__.__name__
+                    # Make sure it's actually there and not an inner class
+                    module = import_module(module_name)
+                    if not hasattr(module, name):
                 raise ValueError(
                     "Could not find object %s in %s.\n"
                     "Please note that you cannot serialize things like inner "
@@ -41,7 +41,7 @@ def deconstructible(*args, path=None):
                     % (name, module_name, get_docs_version()))
             return (
                 path or '%s.%s' % (obj.__class__.__module__, name),
-                obj._constructor_args[0],
+                tuple(obj._constructor_args[0]),
                 obj._constructor_args[1],
             )

The mis-indent of this patch results in all code patch attempts failing.

[github-actions[bot]]

Title: Fix Indentation Issue in LLM-generated Patch Files

Problem: The LLM (Language Learning Model) is generating patch files with incorrect indentation. Specifically, the first line of the patch is mis-indented, leading to failures in all code patch attempts. This mis-indentation shifts sections of the code unnecessarily, which results in syntax errors or incorrect logical block structuring when applying these patches to the source code.

Analysis: The indentation problem occurs when the LLM outputs a patch that modifies the code by introducing or altering functionalities. In such cases, the first line of the patch does not adhere to the existing indentation level, causing the entire block of code to be incorrectly indented. This disrupts the syntactical structure and leads to failures during code patch attempts.

• Root Cause: This is likely an issue with appmap-js or the tool generating the patch, where the context or code formatting logic for maintaining indentations is not applied correctly.
• Impact: Fails all code patch attempts due to syntactical errors caused by incorrect indentation. This renders the automated patch unusable and interrupts workflow efficiency.

Proposed Changes:

1. Patch File Creation Routine:

   • Investigate the routine responsible for translating the proposed changes from the LLM output into a patch file.
   • Identify where the formatting or indentation is applied and ensure that the first line of the patch maintains its original indentation level relative to the surrounding code.

2. Indentation Correction Logic:

   • Implement logic that preserves the existing indentation structure of the original code.
   • This could involve scanning the expected indentation level of the line preceding the changes and applying the same level to the first line of the modified segment.

3. Review and Testing:

   • Once the changes to the indentation logic are implemented, integrate comprehensive tests to ensure that patches are formatted consistently with the source code indentation.
   • Manually verify a few generated patches to confirm that the solutions work effectively.

4. Update Documentation:

   • If necessary, document the changes made to maintain the correct indentation of LLM-generated patches. This is particularly useful for developers involved in maintaining or extending this functionality in the future.

With these changes in place, the patch files generated from LLM outputs should maintain proper indentation, addressing the mis-indentation issue and allowing the patch application process to succeed as expected.

[kgilpin]

Moved to https://github.com/getappmap/appmap-js/issues/2095