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Optimize implementation: Less matches 

This patch simplifies the code to be not three nested matches but rather
one match and then some function chaining.

Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
This commit is contained in:
Matthias Beyer 2018-11-04 22:36:35 +01:00
parent 1321f49428
commit 17913ae3fd
1 changed files with 11 additions and 14 deletions
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25
bin/domain/imag-habit/src/main.rs
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@ -69,6 +69,7 @@ use libimagstore::store::FileLockEntry;
use libimagstore::store::Store;
use libimagstore::storeid::StoreId;
use libimaginteraction::ask::ask_bool;
use libimagutil::debug_result::DebugResult;
mod ui;
@ -115,20 +116,16 @@ fn create(rt: &Runtime) {
let date = scmd.value_of("create-date").unwrap(); // safe by clap
let parsedate = |d, pname| match kairos_parse(d).map_err_trace_exit_unwrap(1) {
Parsed::TimeType(tt) => match tt.calculate() {
Ok(tt) => match tt.get_moment() {
Some(mom) => mom.date(),
None => {
debug!("TimeType yielded: '{:?}'", tt);
error!("Error: '{}' parameter does not yield a point in time", pname);
exit(1);
},
},
Err(e) => {
error!("Error: '{:?}'", e);
exit(1);
}
},
Parsed::TimeType(tt) => tt.calculate()
.map_dbg(|y| format!("TimeType yielded: '{:?}'", y))
.map_err_trace_exit_unwrap(1)
.get_moment()
.ok_or_else(|| {
error!("Error: '{}' parameter does not yield a point in time", pname);
exit(1)
})
.unwrap() // safe by above
.date(),
_ => {
error!("Error: '{}' parameter does not yield a point in time", pname);
exit(1);