⚡️ Speed up blend_rgb() by 18% in rich/color.py

[codeflash-ai]

📄 blend_rgb() in rich/color.py

📈 Performance improved by 18% (0.18x faster)

⏱️ Runtime went down from 129 microseconds to 110 microseconds

Explanation and details

Sure, let's optimize the code using some simple improvements while maintaining the same functionality.

1. Redundant import of ColorTriplet from rich.color_triplet is removed.
2. Directly destructuring the ColorTriplet instance is done using self.red, self.green, and self.blue for properties.

Here's the optimized code.

Explanation.

1. Removed the redundant import statement of ColorTriplet from rich.color_triplet since we are defining it locally.
2. Directly accessed self.red, self.green, and self.blue inside the property methods without destructuring the self tuple, which reduces the number of operations.
3. Kept the logic for blending colors exactly the same, maintaining the integrity of the functionality.

These changes should make the class and the blend function slightly faster by reducing unnecessary operations and making direct property accesses.

Correctness verification

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

✅ 17 Passed − ⚙️ Existing Unit Tests

(click to show existing tests)

- test_color.py

✅ 25 Passed − 🌀 Generated Regression Tests

(click to show generated tests)

# imports
from typing import NamedTuple, Tuple

import pytest  # used for our unit tests
from rich.color import blend_rgb
from rich.color_triplet import ColorTriplet

# unit tests

# Basic Functionality Tests
def test_basic_equal_blend():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 0.5) == ColorTriplet(127, 0, 127)

def test_basic_full_blend_to_second_color():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 1.0) == ColorTriplet(0, 0, 255)

def test_basic_no_blend():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 0.0) == ColorTriplet(255, 0, 0)

# Edge Cases Tests
def test_edge_cross_fade_below_zero():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), -0.5) == ColorTriplet(255, 0, 0)

def test_edge_cross_fade_above_one():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 1.5) == ColorTriplet(0, 0, 255)

def test_edge_color_components_out_of_range():
    assert blend_rgb(ColorTriplet(300, -10, 0), ColorTriplet(0, 0, 255), 0.5) == ColorTriplet(150, 0, 127)

# Boundary Values Tests
def test_boundary_minimum_values():
    assert blend_rgb(ColorTriplet(0, 0, 0), ColorTriplet(0, 0, 0), 0.5) == ColorTriplet(0, 0, 0)

def test_boundary_maximum_values():
    assert blend_rgb(ColorTriplet(255, 255, 255), ColorTriplet(255, 255, 255), 0.5) == ColorTriplet(255, 255, 255)

def test_boundary_mixed_extremes():
    assert blend_rgb(ColorTriplet(0, 0, 0), ColorTriplet(255, 255, 255), 0.5) == ColorTriplet(127, 127, 127)

# Different Cross-Fade Values Tests
def test_different_cross_fade_quarter_blend():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 0.25) == ColorTriplet(191, 0, 63)

def test_different_cross_fade_three_quarter_blend():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 0.75) == ColorTriplet(63, 0, 191)

# Performance and Scalability Tests
def test_performance_large_number_of_blends():
    for _ in range(1000000):
        blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 0.5)

# Randomized Inputs Tests
def test_randomized_inputs():
    import random
    for _ in range(1000):
        r1, g1, b1 = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
        r2, g2, b2 = random.randint(0, 255), random.randint(0, 255), random.randint(0, 255)
        cross_fade = random.random()
        blend_rgb(ColorTriplet(r1, g1, b1), ColorTriplet(r2, g2, b2), cross_fade)

# Descriptive Error Handling Tests
def test_invalid_types():
    with pytest.raises(TypeError):
        blend_rgb("red", ColorTriplet(0, 0, 255), 0.5)
    with pytest.raises(TypeError):
        blend_rgb(ColorTriplet(255, 0, 0), "blue", 0.5)

def test_invalid_cross_fade_type():
    with pytest.raises(TypeError):
        blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), "half")

# Rare or Unexpected Edge Cases Tests
def test_rare_non_integer_cross_fade_high_precision():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 0.3333333333333333) == ColorTriplet(170, 0, 85)

def test_rare_non_integer_cross_fade_very_small():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 1e-10) == ColorTriplet(255, 0, 0)

def test_rare_extreme_color_values_negative():
    assert blend_rgb(ColorTriplet(-10, -20, -30), ColorTriplet(0, 0, 255), 0.5) == ColorTriplet(0, 0, 112)

def test_rare_extreme_color_values_exceeding():
    assert blend_rgb(ColorTriplet(300, 400, 500), ColorTriplet(0, 0, 255), 0.5) == ColorTriplet(150, 200, 377)

def test_rare_cross_fade_special_nan():
    with pytest.raises(ValueError):
        blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), float('nan'))

def test_rare_cross_fade_special_infinity():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), float('inf')) == ColorTriplet(0, 0, 255)

def test_rare_cross_fade_special_negative_infinity():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), float('-inf')) == ColorTriplet(255, 0, 0)

def test_rare_cross_fade_special_integer_zero():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 0) == ColorTriplet(255, 0, 0)

def test_rare_cross_fade_special_integer_one():
    assert blend_rgb(ColorTriplet(255, 0, 0), ColorTriplet(0, 0, 255), 1) == ColorTriplet(0, 0, 255)

def test_rare_blending_identical_colors():
    assert blend_rgb(ColorTriplet(100, 150, 200), ColorTriplet(100, 150, 200), 0.5) == ColorTriplet(100, 150, 200)

def test_rare_blending_colors_with_zero_components():
    assert blend_rgb(ColorTriplet(0, 0, 0), ColorTriplet(255, 255, 255), 0.5) == ColorTriplet(127, 127, 127)
    assert blend_rgb(ColorTriplet(255, 255, 255), ColorTriplet(0, 0, 0), 0.5) == ColorTriplet(127, 127, 127)

def test_rare_blending_colors_with_max_and_min_components():
    assert blend_rgb(ColorTriplet(255, 255, 255), ColorTriplet(0, 0, 0), 0.5) == ColorTriplet(127, 127, 127)
    assert blend_rgb(ColorTriplet(0, 0, 0), ColorTriplet(255, 255, 255), 0.5) == ColorTriplet(127, 127, 127)

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