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Migrate to 2018 edition. (#924)

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* Migrate to 2018 edition.

* Use impl Iterator at one site.

* Fix more rust 2018 idioms.
This commit is contained in:
CrLF0710 2019-06-18 02:27:00 +08:00 • committed by Osspial
parent 2e0bbc091f
commit f879bca21c
71 changed files with 411 additions and 436 deletions
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4
src/icon.rs
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@ -31,7 +31,7 @@ pub enum BadIcon {
}
impl fmt::Display for BadIcon {
fn fmt(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
let msg = match self {
&BadIcon::ByteCountNotDivisibleBy4 { byte_count } => format!(
"The length of the `rgba` argument ({:?}) isn't divisible by 4, making it impossible to interpret as 32bpp RGBA pixels.",
@ -56,7 +56,7 @@ impl Error for BadIcon {
"A valid icon cannot be created from these arguments"
}
fn cause(&self) -> Option<&Error> {
fn cause(&self) -> Option<&dyn Error> {
Some(self)
}
}