⚡️ Speed up Span.split() by 6% in rich/text.py

[codeflash-ai]

📄 Span.split() in rich/text.py

📈 Performance improved by 6% (0.06x faster)

⏱️ Runtime went down from 34.3 microseconds to 32.3 microseconds

Explanation and details

Certainly! Here's an optimized version of the provided Python code. To improve runtime performance and memory usage, I've kept the logic intact while making slight adjustments to avoid unnecessary operations.

Changes Made

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Correctness verification

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

✅ 105 Passed − ⚙️ Existing Unit Tests

(click to show existing tests)

- test_text.py

✅ 12 Passed − 🌀 Generated Regression Tests

(click to show generated tests)

# imports
from typing import NamedTuple, Optional, Tuple, Union

import pytest  # used for our unit tests
# function to test
from rich.style import Style

# unit tests

def test_split_within_range():
    # Basic functionality: split within range
    span = Span(0, 10, "style")
    result = span.split(5)
    assert result == (Span(0, 5, "style"), Span(5, 10, "style"))

def test_split_offset_before_start():
    # Edge case: offset before start
    span = Span(5, 15, "style")
    result = span.split(3)
    assert result == (Span(5, 15, "style"), None)

def test_split_offset_at_start():
    # Edge case: offset at start
    span = Span(5, 15, "style")
    result = span.split(5)
    assert result == (Span(5, 5, "style"), Span(5, 15, "style"))

def test_split_offset_at_end():
    # Edge case: offset at end
    span = Span(5, 15, "style")
    result = span.split(15)
    assert result == (Span(5, 15, "style"), None)

def test_split_offset_beyond_end():
    # Edge case: offset beyond end
    span = Span(5, 15, "style")
    result = span.split(20)
    assert result == (Span(5, 15, "style"), None)

def test_split_single_character_span():
    # Boundary condition: single character span
    span = Span(5, 6, "style")
    result = span.split(5)
    assert result == (Span(5, 5, "style"), Span(5, 6, "style"))
    result = span.split(6)
    assert result == (Span(5, 6, "style"), None)

def test_split_zero_length_span():
    # Boundary condition: zero-length span
    span = Span(5, 5, "style")
    result = span.split(5)
    assert result == (Span(5, 5, "style"), None)

def test_split_negative_offset():
    # Invalid input: negative offset
    span = Span(5, 15, "style")
    result = span.split(-1)
    assert result == (Span(5, 15, "style"), None)

def test_split_non_integer_offset():
    # Invalid input: non-integer offset
    span = Span(5, 15, "style")
    with pytest.raises(TypeError):
        span.split("a")

def test_split_overlapping_spans():
    # Complex scenario: overlapping spans
    span = Span(5, 15, "style")
    result1 = span.split(10)
    result2 = result1[0].split(7)
    assert result2 == (Span(5, 7, "style"), Span(7, 10, "style"))

def test_split_multiple_splits():
    # Complex scenario: multiple splits
    span = Span(0, 20, "style")
    result1 = span.split(10)
    result2 = result1[1].split(15)
    assert result2 == (Span(10, 15, "style"), Span(15, 20, "style"))

def test_split_large_spans():
    # Performance and scalability: large spans
    span = Span(0, 1000000, "style")
    result = span.split(500000)
    assert result == (Span(0, 500000, "style"), Span(500000, 1000000, "style"))
    result = span.split(1000000)
    assert result == (Span(0, 1000000, "style"), None)

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