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Avoid extra allocations in Asn1Time Display impl

This commit is contained in:
Steven Fackler 2016-10-31 23:09:07 -07:00
parent dd4836cdf6
commit 43911db26c
1 changed files with 9 additions and 8 deletions
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15
openssl/src/asn1.rs
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@ -1,7 +1,9 @@
use libc::c_long;
use std::{ptr, fmt};
use std::slice;
use ffi;
use libc::c_long;
use std::fmt;
use std::ptr;
use std::slice;
use std::str;
use {cvt, cvt_p};
use bio::MemBio;
@ -13,12 +15,11 @@ type_!(Asn1Time, ffi::ASN1_TIME, ffi::ASN1_TIME_free);
impl fmt::Display for Ref<Asn1Time> {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
unsafe {
let mem_bio = try!(MemBio::new());
let as_str = unsafe {
try!(cvt(ffi::ASN1_TIME_print(mem_bio.as_ptr(), self.as_ptr())));
String::from_utf8_unchecked(mem_bio.get_buf().to_owned())
};
write!(f, "{}", as_str)
write!(f, "{}", str::from_utf8_unchecked(mem_bio.get_buf()))
}
}
}