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simplify test_func

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This commit is contained in:
Simon Gardling 2022-03-30 09:08:54 -04:00
parent 5563679cdf
commit 5e756b0a70
1 changed files with 4 additions and 8 deletions
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12
src/parsing.rs
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@ -179,17 +179,13 @@ pub fn test_func(function_string: &str) -> Option<String> {
let var_names = parse_result.unwrap().var_names().to_vec();
if var_names != ["x"] {
let var_names_not_x: Vec<String> = var_names
let var_names_not_x: Vec<&String> = var_names
.iter()
.filter(|ele| *ele != "x")
.cloned()
.collect::<Vec<String>>();
.filter(|ele| ele != &"x")
.collect::<Vec<&String>>();
return match var_names_not_x.len() {
1 => {
let var_name = &var_names_not_x[0];
Some(format!("Error: invalid variable: {}", var_name))
}
1 => Some(format!("Error: invalid variable: {}", var_names_not_x[0])),
_ => Some(format!("Error: invalid variables: {:?}", var_names_not_x)),
};
}