35 lines
811 B
Rust
35 lines
811 B
Rust
mod argparse {
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#[legacy_exports];
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extern mod std;
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use either::{Either, Left, Right};
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struct Flag {
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name: &str,
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desc: &str,
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max_count: uint,
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mut value: uint
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}
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fn flag(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 Flag {
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fn set_desc(self, s: &str) -> Flag {
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Flag { //~ ERROR cannot infer an appropriate lifetime
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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 updated_flag.desc == "My new flag";
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}
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