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Optimize text_style using bit packing (#4363)

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This commit is contained in:
Victor Chernyakin
2025-03-01 12:18:19 -07:00
committed by GitHub
parent bdbf957b9a
commit b776cf66fc
4 changed files with 173 additions and 91 deletions
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57
test/color-test.cc
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@@ -9,11 +9,66 @@
#include <iterator> // std::back_inserter
#include "gtest-extra.h" // EXPECT_WRITE
#include "gtest-extra.h" // EXPECT_WRITE, EXPECT_THROW_MSG
TEST(color_test, text_style) {
EXPECT_FALSE(fmt::text_style{}.has_foreground());
EXPECT_FALSE(fmt::text_style{}.has_background());
EXPECT_FALSE(fmt::text_style{}.has_emphasis());
EXPECT_TRUE(fg(fmt::rgb(0)).has_foreground());
EXPECT_FALSE(fg(fmt::rgb(0)).has_background());
EXPECT_FALSE(fg(fmt::rgb(0)).has_emphasis());
EXPECT_TRUE(bg(fmt::rgb(0)).has_background());
EXPECT_FALSE(bg(fmt::rgb(0)).has_foreground());
EXPECT_FALSE(bg(fmt::rgb(0)).has_emphasis());
EXPECT_TRUE(
(fg(fmt::rgb(0xFFFFFF)) | bg(fmt::rgb(0xFFFFFF))).has_foreground());
EXPECT_TRUE(
(fg(fmt::rgb(0xFFFFFF)) | bg(fmt::rgb(0xFFFFFF))).has_background());
EXPECT_FALSE(
(fg(fmt::rgb(0xFFFFFF)) | bg(fmt::rgb(0xFFFFFF))).has_emphasis());
EXPECT_EQ(fg(fmt::rgb(0x000000)) | fg(fmt::rgb(0x000000)),
fg(fmt::rgb(0x000000)));
EXPECT_EQ(fg(fmt::rgb(0x00000F)) | fg(fmt::rgb(0x00000F)),
fg(fmt::rgb(0x00000F)));
EXPECT_EQ(fg(fmt::rgb(0xC0F000)) | fg(fmt::rgb(0x000FEE)),
fg(fmt::rgb(0xC0FFEE)));
EXPECT_THROW_MSG(
fg(fmt::terminal_color::black) | fg(fmt::terminal_color::black),
fmt::format_error, "can't OR a terminal color");
EXPECT_THROW_MSG(
fg(fmt::terminal_color::black) | fg(fmt::terminal_color::white),
fmt::format_error, "can't OR a terminal color");
EXPECT_THROW_MSG(
bg(fmt::terminal_color::black) | bg(fmt::terminal_color::black),
fmt::format_error, "can't OR a terminal color");
EXPECT_THROW_MSG(
bg(fmt::terminal_color::black) | bg(fmt::terminal_color::white),
fmt::format_error, "can't OR a terminal color");
EXPECT_THROW_MSG(fg(fmt::terminal_color::black) | fg(fmt::color::black),
fmt::format_error, "can't OR a terminal color");
EXPECT_THROW_MSG(bg(fmt::terminal_color::black) | bg(fmt::color::black),
fmt::format_error, "can't OR a terminal color");
EXPECT_NO_THROW(fg(fmt::terminal_color::white) |
bg(fmt::terminal_color::white));
EXPECT_NO_THROW(fg(fmt::terminal_color::white) | bg(fmt::rgb(0xFFFFFF)));
EXPECT_NO_THROW(fg(fmt::terminal_color::white) | fmt::text_style{});
EXPECT_NO_THROW(bg(fmt::terminal_color::white) | fmt::text_style{});
}
TEST(color_test, format) {
EXPECT_EQ(fmt::format(fmt::text_style{}, "no style"), "no style");
EXPECT_EQ(fmt::format(fg(fmt::rgb(255, 20, 30)), "rgb(255,20,30)"),
"\x1b[38;2;255;020;030mrgb(255,20,30)\x1b[0m");
EXPECT_EQ(fmt::format(fg(fmt::rgb(255, 0, 0)) | fg(fmt::rgb(0, 20, 30)), "rgb(255,20,30)"),
"\x1b[38;2;255;020;030mrgb(255,20,30)\x1b[0m");
EXPECT_EQ(fmt::format(fg(fmt::rgb(0, 0, 0)) | fg(fmt::rgb(0, 0, 0)), "rgb(0,0,0)"),
"\x1b[38;2;000;000;000mrgb(0,0,0)\x1b[0m");
EXPECT_EQ(fmt::format(fg(fmt::color::blue), "blue"),
"\x1b[38;2;000;000;255mblue\x1b[0m");
EXPECT_EQ(