Formally implement let chains by c410-f3r · Pull Request #88642 · rust-lang/rust...

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fn u2_beautiful_day(lyrics: &str) {
    let mut lines = lyrics.trim().lines();

    if let Some(see_the_world) = lines.next().map(|el| el.trim())
        && let Some(see_china) = lines.next().map(|el| el.trim())
        && let Some(see_the_canyons) = lines.next().map(|el| el.trim())
        && let Some(see_the_tuna_fleets) = lines.next().map(|el| el.trim())
        && let Some(see_the_bedouin_fires) = lines.next().map(|el| el.trim())
        && let Some(see_the_oil_fields) = lines.next().map(|el| el.trim())
        && let Some(and_see_the_bird) = lines.next().map(|el| el.trim())
        && let Some(after_the_flood) = lines.next().map(|el| el.trim())

        && see_the_world == "See the world in green and blue"
        && see_china == "See China right in front of you"
        && see_the_canyons == "See the canyons broken by cloud"
        && see_the_tuna_fleets == "See the tuna fleets clearing the sea out"
        && see_the_bedouin_fires == "See the bedouin fires at night"
        && see_the_oil_fields == "See the oil fields at first light"
        && and_see_the_bird == "And see the bird with a leaf in her mouth"
        && after_the_flood == "After the flood all the colors came out"
    {
        println!("It was a beautiful day, don't let it get away");
    }
}