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@codeflash-ai codeflash-ai bot commented Jan 24, 2025

📄 76% (0.76x) speedup for AnyUrl.build in pydantic/v1/networks.py

⏱️ Runtime : 576 microseconds 328 microseconds (best of 218 runs)

📝 Explanation and details

Sure, I can help optimize the provided method to run faster. The major bottlenecks often involve string concatenation and the additional calls to check optional elements repeatedly. By eliminating redundant checks and using more efficient string operations, we can improve the performance of the build method. Here's an optimized version of the provided code.

Key Changes.

  • String Concatenation Optimization: Instead of repeatedly using += for string concatenation, which can cause performance degradation due to repeated memory allocation, we use a list to collect parts and join them once at the end.
  • Minimized Condition Checks: Logical checks (if user, if password) are done in the construction phase as efficiently as possible, without repeating them.

These optimizations aim to reduce the overall time complexity and make the code more efficient by minimizing redundant operations and memory allocations.

Correctness verification report:

Test Status
⚙️ Existing Unit Tests 🔘 None Found
🌀 Generated Regression Tests 1035 Passed
⏪ Replay Tests 🔘 None Found
🔎 Concolic Coverage Tests 🔘 None Found
📊 Tests Coverage 100.0%
🌀 Generated Regression Tests Details
from typing import Any, Dict, Optional

# imports
import pytest  # used for our unit tests
from pydantic.v1.networks import AnyUrl
# function to test
from pydantic.v1.utils import update_not_none


class Parts:
    def __init__(self, scheme, user, password, host, port, path, query, fragment, **kwargs):
        self.scheme = scheme
        self.user = user
        self.password = password
        self.host = host
        self.port = port
        self.path = path
        self.query = query
        self.fragment = fragment

# unit tests

def test_basic_http_url():
    # Test simple HTTP URL
    codeflash_output = AnyUrl.build(scheme='http', host='example.com')

def test_basic_https_url():
    # Test simple HTTPS URL
    codeflash_output = AnyUrl.build(scheme='https', host='example.com')

def test_url_with_user():
    # Test URL with user only
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', user='user')

def test_url_with_user_and_password():
    # Test URL with user and password
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', user='user', password='pass')

def test_url_with_standard_port():
    # Test URL with standard port
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', port='80')

def test_url_with_non_standard_port():
    # Test URL with non-standard port
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', port='8080')

def test_url_with_single_path_segment():
    # Test URL with single path segment
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path='/path')

def test_url_with_multiple_path_segments():
    # Test URL with multiple path segments
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path='/path/to/resource')

def test_url_with_single_query_parameter():
    # Test URL with single query parameter
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', query='key=value')

def test_url_with_multiple_query_parameters():
    # Test URL with multiple query parameters
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', query='key1=value1&key2=value2')

def test_url_with_simple_fragment():
    # Test URL with simple fragment
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', fragment='section1')

def test_url_with_complex_fragment():
    # Test URL with complex fragment
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', fragment='section1/subsection2')

def test_complete_url_with_all_components():
    # Test complete URL with all components
    codeflash_output = AnyUrl.build(scheme='https', user='user', password='pass', host='example.com', port='8443', path='/path', query='key=value', fragment='section1')



def test_empty_string_components():
    # Test empty string components
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path='', query='', fragment='')



def test_long_path():
    # Test long path
    long_path = '/' + 'a' * 1000
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path=long_path)

def test_complex_query_parameters():
    # Test complex query parameters
    complex_query = '&'.join(f'key{i}=value{i}' for i in range(100))
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', query=complex_query)

def test_large_number_of_urls():
    # Test large number of URLs
    for i in range(1000):
        codeflash_output = AnyUrl.build(scheme='http', host=f'example{i}.com', path=f'/path{i}', query=f'key{i}=value{i}', fragment=f'section{i}')
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

from typing import Any, Dict, Optional

# imports
import pytest  # used for our unit tests
from pydantic.v1.networks import AnyUrl
# function to test
from pydantic.v1.utils import update_not_none


class Parts:
    def __init__(self, scheme, user, password, host, port, path, query, fragment, **_kwargs):
        self.scheme = scheme
        self.user = user
        self.password = password
        self.host = host
        self.port = port
        self.path = path
        self.query = query
        self.fragment = fragment

# unit tests

def test_basic_http_url():
    # Simple HTTP URL
    codeflash_output = AnyUrl.build(scheme='http', host='example.com')

def test_basic_https_url():
    # Simple HTTPS URL
    codeflash_output = AnyUrl.build(scheme='https', host='example.com')

def test_url_with_user():
    # URL with User
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', user='username')

def test_url_with_user_and_password():
    # URL with User and Password
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', user='username', password='password')

def test_url_with_standard_port():
    # URL with Standard Port
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', port='80')

def test_url_with_non_standard_port():
    # URL with Non-Standard Port
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', port='8080')

def test_url_with_single_path_segment():
    # URL with Single Path Segment
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path='/path')

def test_url_with_multiple_path_segments():
    # URL with Multiple Path Segments
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path='/path/to/resource')

def test_url_with_single_query_parameter():
    # URL with Single Query Parameter
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', query='key=value')

def test_url_with_multiple_query_parameters():
    # URL with Multiple Query Parameters
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', query='key1=value1&key2=value2')

def test_url_with_fragment():
    # URL with Fragment
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', fragment='section1')

def test_url_with_user_path_and_query():
    # URL with User, Path, and Query
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', user='username', path='/path', query='key=value')

def test_url_with_all_components():
    # URL with User, Password, Port, Path, Query, and Fragment
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', user='username', password='password', port='8080', path='/path', query='key=value', fragment='section1')




def test_special_characters_in_user_info():
    # Special Characters in User Info
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', user='user@name', password='pass#word')

def test_special_characters_in_path():
    # Special Characters in Path
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path='/path with spaces')

def test_long_url():
    # Long URL
    long_path = '/' + 'a' * 1000
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', path=long_path)

def test_complex_query_parameters():
    # Complex Query Parameters
    complex_query = '&'.join(f'key{i}=value{i}' for i in range(100))
    codeflash_output = AnyUrl.build(scheme='http', host='example.com', query=complex_query)
# codeflash_output is used to check that the output of the original code is the same as that of the optimized code.

from pydantic.v1.networks import AnyUrl
from pydantic.v1.networks import HttpUrl
from pydantic.v1.networks import RedisDsn

def test_AnyUrl_build():
    assert AnyUrl.build(HttpUrl, scheme='', user=None, password='\x00', host='', port='\x00\x00\x00', path='', query='', fragment='\x00') == '://:\x00@:\x00\x00\x00#\x00'

def test_AnyUrl_build_2():
    assert AnyUrl.build(AnyUrl, scheme='', user='\x00', password=None, host='', port=None, path='', query='\x00', fragment=None) == '://\x00@?\x00'

def test_AnyUrl_build_3():
    assert AnyUrl.build(RedisDsn, scheme='', user='\x00', password=None, host='', port='', path='\x00', query=None, fragment=None) == '://\x00@\x00'

📢 Feedback on this optimization? Discord

Sure, I can help optimize the provided method to run faster. The major bottlenecks often involve string concatenation and the additional calls to check optional elements repeatedly. By eliminating redundant checks and using more efficient string operations, we can improve the performance of the `build` method. Here's an optimized version of the provided code.



### Key Changes.
- **String Concatenation Optimization**: Instead of repeatedly using `+=` for string concatenation, which can cause performance degradation due to repeated memory allocation, we use a list to collect parts and join them once at the end.
- **Minimized Condition Checks**: Logical checks (`if user`, `if password`) are done in the construction phase as efficiently as possible, without repeating them.

These optimizations aim to reduce the overall time complexity and make the code more efficient by minimizing redundant operations and memory allocations.
@codeflash-ai codeflash-ai bot added the ⚡️ codeflash Optimization PR opened by Codeflash AI label Jan 24, 2025
@codeflash-ai codeflash-ai bot requested a review from misrasaurabh1 January 24, 2025 09:00
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