⚡️ Speed up function `find_names_in_code` by 7,942% in `src/backend/base/langflow/utils/validate.py`

[codeflash-ai[bot]]

📄 find_names_in_code() in src/backend/base/langflow/utils/validate.py

📈 Performance improved by 7,942% (79.42x faster)

⏱️ Runtime went down from 22.2 milliseconds to 277 microseconds

Explanation and details

Certainly! One way to optimize this function is by using a set for the names instead of a list, improving the average time complexity of checking if a name is present in the code. Additionally, since searching for substrings in a string is already quite efficient, the primary optimization focuses on reducing redundancy and overhead.

Here's the optimized version of the program.

Explanation.

1. Conversion to Set: Convert names to a set (names_set) to ensure that each name is unique and also potentially speed up membership testing, even though we're generally iterating over the elements.
2. Early Return Optimization: By using a set found_names directly instead of a set comprehension, we can avoid the overhead of creating the set in one go and can exit early if needed.

This version should be more efficient in typical scenarios, though the actual run-time improvements will depend on the specific use case and data.

Correctness verification

The new optimized code was tested for correctness. The results are listed below.

🔘 (none found) − ⚙️ Existing Unit Tests

✅ 34 Passed − 🌀 Generated Regression Tests

(click to show generated tests)

# imports
import pytest  # used for our unit tests
from src.backend.base.langflow.utils.validate import find_names_in_code

# unit tests

def test_single_name_present():
    # Test when a single name is present in the code
    codeflash_output = find_names_in_code("def foo(): pass", ["foo"])
    codeflash_output = find_names_in_code("print(bar)", ["bar"])
    # Outputs were verified to be equal to the original implementation

def test_multiple_names_present():
    # Test when multiple names are present in the code
    codeflash_output = find_names_in_code("def foo(): pass\nbar = 1", ["foo", "bar"])
    codeflash_output = find_names_in_code("a = 1\nb = 2\nc = 3", ["a", "b", "c"])
    # Outputs were verified to be equal to the original implementation

def test_no_names_present():
    # Test when no names are present in the code
    codeflash_output = find_names_in_code("def foo(): pass", ["bar"])
    codeflash_output = find_names_in_code("print('hello')", ["foo", "bar"])
    # Outputs were verified to be equal to the original implementation

def test_empty_code_string():
    # Test when the code string is empty
    codeflash_output = find_names_in_code("", ["foo", "bar"])
    codeflash_output = find_names_in_code("", [])
    # Outputs were verified to be equal to the original implementation

def test_empty_names_list():
    # Test when the names list is empty
    codeflash_output = find_names_in_code("def foo(): pass", [])
    codeflash_output = find_names_in_code("print('hello')", [])
    # Outputs were verified to be equal to the original implementation

def test_names_as_substrings():
    # Test when names are substrings of the code
    codeflash_output = find_names_in_code("foobar", ["foo"])
    codeflash_output = find_names_in_code("foobarbaz", ["bar"])
    # Outputs were verified to be equal to the original implementation

def test_case_sensitivity():
    # Test case sensitivity
    codeflash_output = find_names_in_code("def Foo(): pass", ["foo"])
    codeflash_output = find_names_in_code("print(Bar)", ["bar"])
    # Outputs were verified to be equal to the original implementation

def test_names_with_special_characters():
    # Test names with special characters
    codeflash_output = find_names_in_code("def foo_bar(): pass", ["foo_bar"])
    codeflash_output = find_names_in_code("print(foo-bar)", ["foo-bar"])
    # Outputs were verified to be equal to the original implementation

def test_large_code_string():
    # Test with a large code string
    large_code = "def foo(): pass\n" * 10000
    codeflash_output = find_names_in_code(large_code, ["foo"])
    large_code = "a = 1\n" * 10000
    codeflash_output = find_names_in_code(large_code, ["a", "b", "c"])
    # Outputs were verified to be equal to the original implementation

def test_large_names_list():
    # Test with a large names list
    codeflash_output = find_names_in_code("def foo(): pass", ["foo"] * 10000)
    codeflash_output = find_names_in_code("print(bar)", ["bar"] * 10000)
    # Outputs were verified to be equal to the original implementation

def test_both_large_code_and_names_list():
    # Test with both large code and names list
    large_code = "def foo(): pass\n" * 10000
    codeflash_output = find_names_in_code(large_code, ["foo"] * 10000)
    large_code = "a = 1\n" * 10000
    codeflash_output = find_names_in_code(large_code, ["a", "b", "c"] * 10000)
    # Outputs were verified to be equal to the original implementation

def test_names_with_spaces():
    # Test names with spaces
    codeflash_output = find_names_in_code("def foo bar(): pass", ["foo bar"])
    codeflash_output = find_names_in_code("print(foo bar)", ["foo bar"])
    # Outputs were verified to be equal to the original implementation

def test_names_with_numbers():
    # Test names with numbers
    codeflash_output = find_names_in_code("def foo123(): pass", ["foo123"])
    codeflash_output = find_names_in_code("print(foo123)", ["foo123"])
    # Outputs were verified to be equal to the original implementation

def test_names_with_mixed_characters():
    # Test names with mixed characters
    codeflash_output = find_names_in_code("def foo_bar123(): pass", ["foo_bar123"])
    codeflash_output = find_names_in_code("print(foo-bar_123)", ["foo-bar_123"])
    # Outputs were verified to be equal to the original implementation

def test_nested_names():
    # Test nested names
    codeflash_output = find_names_in_code("def foo():\n def bar(): pass", ["foo", "bar"])
    codeflash_output = find_names_in_code("class Foo:\n def bar(self): pass", ["Foo", "bar"])
    # Outputs were verified to be equal to the original implementation

def test_overlapping_names():
    # Test overlapping names
    codeflash_output = find_names_in_code("foobar", ["foo", "bar"])
    codeflash_output = find_names_in_code("foobarbaz", ["foo", "bar", "baz"])
    # Outputs were verified to be equal to the original implementation

def test_names_appearing_multiple_times():
    # Test names appearing multiple times
    codeflash_output = find_names_in_code("foo = 1\nfoo = 2\nfoo = 3", ["foo"])
    codeflash_output = find_names_in_code("bar()\nbar()\nbar()", ["bar"])
    # Outputs were verified to be equal to the original implementation

🔘 (none found) − ⏪ Replay Tests

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_{Last Modified at 02 Aug 24 20:54 UTC}

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This PR has been automatically closed because the original PR #3216 by EvgenyK1 was closed.