mirror of https://github.com/rust-lang/rust
30 lines
787 B
Rust
30 lines
787 B
Rust
mod argparse {
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pub struct Flag<'a> {
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name: &'a str,
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pub desc: &'a str,
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max_count: usize,
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value: usize
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}
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pub fn flag<'r>(name: &'r str, desc: &'r str) -> Flag<'r> {
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Flag { name: name, desc: desc, max_count: 1, value: 0 }
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}
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impl<'a> Flag<'a> {
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pub fn set_desc(self, s: &str) -> Flag<'a> {
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Flag { //~ ERROR explicit lifetime required in the type of `s` [E0621]
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name: self.name,
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desc: s,
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max_count: self.max_count,
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value: self.value
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}
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}
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}
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}
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fn main () {
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let f : argparse::Flag = argparse::flag("flag", "My flag");
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let updated_flag = f.set_desc("My new flag");
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assert_eq!(updated_flag.desc, "My new flag");
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}
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