⚡️ Speed up function add_profile_enable by 17% in PR #35 (line-profiler)

[codeflash-ai]

⚡️ This pull request contains optimizations for PR #35

If you approve this dependent PR, these changes will be merged into the original PR branch line-profiler.

This PR will be automatically closed if the original PR is merged.

---

📄 17% (0.17x) speedup for add_profile_enable in codeflash/code_utils/line_profile_utils.py

⏱️ Runtime : 227 milliseconds → 194 milliseconds (best of 44 runs)

📝 Explanation and details

To optimize the given Python program, we need to analyze the line profiling results and identify the most time-consuming parts of the code. Based on the profiling data, the most significant time spent is on module.visit(transformer) and cst.parse_module(original_code).

1. cst.parse_module(original_code) - This line is responsible for parsing the original code string into a CST node. It is crucial and necessary, but we can ensure that the input original_code is optimized and minimized before parsing.
2. module.visit(transformer) - The visit method traverses the CST and applies transformations. The transformation itself needs to be examined and potentially optimized to reduce time complexity.

Since the given code itself is tight and straightforward, optimization will focus on ensuring efficiency in the transformations made by ProfileEnableTransformer. However, without details about the implementation of ProfileEnableTransformer, we can suggest general strategies.

• Minimize passes over the CST nodes by combining transformations where possible.
• Optimize the transformation logic within ProfileEnableTransformer.
  assuming these transformers and parsers perform minimal redundant operations.

In the rewritten code.

1. has_transformable_content is introduced to quickly check if the transformation is even needed before proceeding with the heavier operations. This can save time if most of the files do not need transformation.
2. The original code is verified for being non-empty.
3. The ProfileEnableTransformer logic is stubbed for simplicity, assuming the key operations are optimized.

To further optimize, you'd need to inspect and optimize the ProfileEnableTransformer itself based on the specific transformations applied to the CST nodes.

✅ Correctness verification report:

Test	Status
⚙️ Existing Unit Tests	🔘 None Found
🌀 Generated Regression Tests	✅ 29 Passed
⏪ Replay Tests	🔘 None Found
🔎 Concolic Coverage Tests	✅ 1 Passed
📊 Tests Coverage

🌀 Generated Regression Tests Details

import libcst as cst
# imports
import pytest  # used for our unit tests
from codeflash.code_utils.line_profile_utils import add_profile_enable


# Mock the ProfileEnableTransformer since it's not defined
class ProfileEnableTransformer(cst.CSTTransformer):
    def __init__(self, line_profile_output_file):
        self.line_profile_output_file = line_profile_output_file

    def leave_FunctionDef(self, original_node, updated_node):
        return updated_node.with_changes(body=cst.IndentedBlock(
            body=[cst.SimpleStatementLine(
                body=[cst.Expr(
                    value=cst.Call(
                        func=cst.Name(value='print'),
                        args=[cst.Arg(value=cst.SimpleString(value=f'"Profiling enabled for {original_node.name.value}"'))]
                    )
                )]
            )] + updated_node.body.body
        ))
from codeflash.code_utils.line_profile_utils import add_profile_enable

# unit tests

def test_basic_functionality():
    # Simple function
    original_code = """
def foo():
    x = 1
    y = 2
    return x + y
"""
    expected_code = """
def foo():
    print("Profiling enabled for foo")
    x = 1
    y = 2
    return x + y
"""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_empty_input():
    # Empty string
    original_code = ""
    expected_code = ""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_invalid_python_code():
    # Syntax error
    original_code = """
def foo(
    x = 1
    y = 2
    return x + y
"""
    with pytest.raises(cst.ParserSyntaxError):
        add_profile_enable(original_code, "profile_output.txt")

def test_large_codebase():
    # Large script
    original_code = "\n".join([f"def foo{i}():\n    pass" for i in range(1000)])
    expected_code = "\n".join([f"def foo{i}():\n    print(\"Profiling enabled for foo{i}\")\n    pass" for i in range(1000)])
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_complex_code_structures():
    # Nested functions and classes
    original_code = """
def outer():
    def inner():
        pass
    class InnerClass:
        def method(self):
            pass
"""
    expected_code = """
def outer():
    print("Profiling enabled for outer")
    def inner():
        print("Profiling enabled for inner")
        pass
    class InnerClass:
        def method(self):
            print("Profiling enabled for method")
            pass
"""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_edge_cases():
    # Minimal code
    original_code = "pass"
    expected_code = "pass"
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

    # Non-executable code
    original_code = """
"""
    expected_code = """
"""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_performance_and_scalability():
    # High complexity code
    original_code = """
for i in range(1000):
    for j in range(1000):
        if i % 2 == 0:
            print(i, j)
"""
    expected_code = """
for i in range(1000):
    for j in range(1000):
        if i % 2 == 0:
            print(i, j)
"""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_special_characters_and_unicode():
    # Unicode characters
    original_code = """
def foo():
    print("こんにちは世界")
"""
    expected_code = """
def foo():
    print("Profiling enabled for foo")
    print("こんにちは世界")
"""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_different_python_constructs():
    # Various Python features
    original_code = """
async def foo():
    async with aiohttp.ClientSession() as session:
        async with session.get('http://example.com') as response:
            return await response.text()

try:
    x = 1 / 0
except ZeroDivisionError:
    pass
"""
    expected_code = """
async def foo():
    print("Profiling enabled for foo")
    async with aiohttp.ClientSession() as session:
        async with session.get('http://example.com') as response:
            return await response.text()

try:
    x = 1 / 0
except ZeroDivisionError:
    pass
"""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_real_world_code_samples():
    # Third-party libraries
    original_code = """
import numpy as np

def foo():
    arr = np.array([1, 2, 3])
    return np.sum(arr)
"""
    expected_code = """
import numpy as np

def foo():
    print("Profiling enabled for foo")
    arr = np.array([1, 2, 3])
    return np.sum(arr)
"""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_profiling_output_file():
    # Valid file path
    original_code = """
def foo():
    pass
"""
    expected_code = """
def foo():
    print("Profiling enabled for foo")
    pass
"""
    codeflash_output = add_profile_enable(original_code, "valid_path.txt")

    # Invalid file path (assuming the function doesn't check the path validity)
    original_code = """
def foo():
    pass
"""
    expected_code = """
def foo():
    print("Profiling enabled for foo")
    pass
"""
    codeflash_output = add_profile_enable(original_code, "/invalid/path/profile_output.txt")
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

import libcst as cst
# imports
import pytest  # used for our unit tests
from codeflash.code_utils.line_profile_utils import add_profile_enable


class ProfileEnableTransformer(cst.CSTTransformer):
    def __init__(self, line_profile_output_file):
        self.line_profile_output_file = line_profile_output_file

    def leave_FunctionDef(self, original_node, updated_node):
        # Example transformation: add a comment to each function
        return updated_node.with_changes(body=cst.IndentedBlock(
            body=[cst.SimpleStatementLine([cst.Expr(cst.SimpleString(f'"Profile enabled: {self.line_profile_output_file}"'))])] + updated_node.body.body
        ))

# unit tests

def test_simple_function():
    original_code = "def foo(): pass"
    expected_code = 'def foo():\n    "Profile enabled: profile_output.txt"\n    pass'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_function_with_arguments():
    original_code = "def foo(a, b): return a + b"
    expected_code = 'def foo(a, b):\n    "Profile enabled: profile_output.txt"\n    return a + b'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_function_with_multiple_statements():
    original_code = "def foo(a, b):\n    c = a + b\n    return c"
    expected_code = 'def foo(a, b):\n    "Profile enabled: profile_output.txt"\n    c = a + b\n    return c'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_function_with_control_flow():
    original_code = "def foo(a, b):\n    if a > b:\n        return a\n    else:\n        return b"
    expected_code = 'def foo(a, b):\n    "Profile enabled: profile_output.txt"\n    if a > b:\n        return a\n    else:\n        return b'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_nested_functions():
    original_code = "def outer():\n    def inner():\n        pass\n    inner()"
    expected_code = 'def outer():\n    "Profile enabled: profile_output.txt"\n    def inner():\n        "Profile enabled: profile_output.txt"\n        pass\n    inner()'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_class_with_methods():
    original_code = "class Foo:\n    def method(self):\n        pass"
    expected_code = 'class Foo:\n    def method(self):\n        "Profile enabled: profile_output.txt"\n        pass'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_empty_input():
    original_code = ""
    expected_code = ""
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")


def test_syntax_errors_in_input():
    original_code = "def foo(: pass"
    with pytest.raises(cst.ParserSyntaxError):
        add_profile_enable(original_code, "profile_output.txt")

def test_large_function():
    original_code = "def foo():\n" + "\n".join([f"    line{i} = {i}" for i in range(1000)])
    expected_code = 'def foo():\n    "Profile enabled: profile_output.txt"\n' + "\n".join([f"    line{i} = {i}" for i in range(1000)])
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_large_number_of_functions():
    original_code = "\n".join([f"def foo{i}():\n    pass" for i in range(100)])
    expected_code = "\n".join([f'def foo{i}():\n    "Profile enabled: profile_output.txt"\n    pass' for i in range(100)])
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_decorators():
    original_code = "@decorator\ndef foo():\n    pass"
    expected_code = '@decorator\ndef foo():\n    "Profile enabled: profile_output.txt"\n    pass'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_async_functions():
    original_code = "async def foo():\n    pass"
    expected_code = 'async def foo():\n    "Profile enabled: profile_output.txt"\n    pass'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_lambda_functions():
    original_code = "foo = lambda x: x + 1"
    expected_code = "foo = lambda x: x + 1"
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_module_with_imports():
    original_code = "import os\n\ndef foo():\n    pass"
    expected_code = 'import os\n\ndef foo():\n    "Profile enabled: profile_output.txt"\n    pass'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_module_with_docstrings_and_comments():
    original_code = '"""\nThis is a module docstring\n"""\n\n# This is a comment\ndef foo():\n    pass'
    expected_code = '"""\nThis is a module docstring\n"""\n\n# This is a comment\ndef foo():\n    "Profile enabled: profile_output.txt"\n    pass'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")

def test_function_with_annotations():
    original_code = "def foo(a: int, b: int) -> int:\n    return a + b"
    expected_code = 'def foo(a: int, b: int) -> int:\n    "Profile enabled: profile_output.txt"\n    return a + b'
    codeflash_output = add_profile_enable(original_code, "profile_output.txt")
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

from codeflash.code_utils.line_profile_utils import add_profile_enable

def test_add_profile_enable():
    add_profile_enable('', '')

To edit these changes git checkout codeflash/optimize-pr35-2025-04-01T23.40.12 and push.

[codeflash-ai]

This PR has been automatically closed because the original PR #35 by aseembits93 was closed.