rust/tests/ui/did_you_mean/issue-48492-tuple-destructure-missing-parens.rs
2023-01-11 09:32:08 +00:00

88 lines
2.2 KiB
Rust

#![allow(unused)]
#[derive(Copy, Clone)]
enum Nucleotide {
Adenine,
Thymine,
Cytosine,
Guanine
}
#[derive(Clone)]
struct Autosome;
#[derive(Clone)]
enum Allosome {
X(Vec<Nucleotide>),
Y(Vec<Nucleotide>)
}
impl Allosome {
fn is_x(&self) -> bool {
match *self {
Allosome::X(_) => true,
Allosome::Y(_) => false,
}
}
}
#[derive(Clone)]
struct Genome {
autosomes: [Autosome; 22],
allosomes: (Allosome, Allosome)
}
fn find_start_codon(strand: &[Nucleotide]) -> Option<usize> {
let mut reading_frame = strand.windows(3);
// (missing parentheses in `while let` tuple pattern)
while let b1, b2, b3 = reading_frame.next().expect("there should be a start codon") {
//~^ ERROR unexpected `,` in pattern
// ...
}
None
}
fn find_thr(strand: &[Nucleotide]) -> Option<usize> {
let mut reading_frame = strand.windows(3);
let mut i = 0;
// (missing parentheses in `if let` tuple pattern)
if let b1, b2, b3 = reading_frame.next().unwrap() {
//~^ ERROR unexpected `,` in pattern
// ...
}
None
}
fn is_thr(codon: (Nucleotide, Nucleotide, Nucleotide)) -> bool {
match codon {
// (missing parentheses in match arm tuple pattern)
Nucleotide::Adenine, Nucleotide::Cytosine, _ => true
//~^ ERROR unexpected `,` in pattern
_ => false
}
}
fn analyze_female_sex_chromosomes(women: &[Genome]) {
// (missing parentheses in `for` tuple pattern)
for x, _barr_body in women.iter().map(|woman| woman.allosomes.clone()) {
//~^ ERROR unexpected `,` in pattern
// ...
}
}
fn analyze_male_sex_chromosomes(men: &[Genome]) {
// (missing parentheses in pattern with `@` binding)
for x, y @ Allosome::Y(_) in men.iter().map(|man| man.allosomes.clone()) {
//~^ ERROR unexpected `,` in pattern
// ...
}
}
fn main() {
let genomes = Vec::new();
// (missing parentheses in `let` pattern)
let women, men: (Vec<Genome>, Vec<Genome>) = genomes.iter().cloned()
//~^ ERROR unexpected `,` in pattern
.partition(|g: &Genome| g.allosomes.0.is_x() && g.allosomes.1.is_x());
}