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Remove unnecessary collect

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TheAwiteb 2023-03-02 15:57:43 +03:00
parent 9a2e39ea01
commit 99685f3dcc
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GPG key ID: ABF818BD15DC2D34
1 changed files with 27 additions and 31 deletions
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58
crates/teloxide-macros/src/command_attr.rs
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@ -50,39 +50,35 @@ impl CommandAttrs {
pub fn from_attributes(attributes: &[Attribute]) -> Result<Self> {
use CommandAttrKind::*;
// Convert the `doc` attribute into `command(description = "...")`
let attributes = attributes
.iter()
.map(|attr| {
if attr.path.is_ident("doc") {
// Extract the token literal from the doc attribute.
let description = attr
.tokens
.clone()
.into_iter()
.nth(1)
.map(|t| {
// remove first and last quotes only, is expected to be a string literal
let mut s = t.to_string();
s.remove(0);
s.pop();
s.trim().replace(r"\\n", "\n")
})
.unwrap_or_default();
// Convert the doc attribute into a command description attribute.
let sp = attr.span();
let attr = Attribute::parse_outer
.parse2(quote_spanned!(sp => #[command(description = #description)]))
.unwrap();
// SAFETY: `parse_outer` always returns a single attribute.
attr.into_iter().next().unwrap()
} else {
attr.clone()
}
})
.collect::<Vec<_>>();
let attributes = attributes.iter().map(|attr| {
if attr.path.is_ident("doc") {
// Extract the token literal from the doc attribute.
let description = attr
.tokens
.clone()
.into_iter()
.nth(1)
.map(|t| {
// remove first and last quotes only, is expected to be a string literal
let mut s = t.to_string();
s.remove(0);
s.pop();
s.trim().replace(r"\\n", "\n")
})
.unwrap_or_default();
// Convert the doc attribute into a command description attribute.
let sp = attr.span();
let attr = Attribute::parse_outer
.parse2(quote_spanned!(sp => #[command(description = #description)]))
.unwrap();
attr.into_iter().next().unwrap()
} else {
attr.clone()
}
});
fold_attrs(
attributes.iter(),
attributes,
is_command_attribute,
CommandAttr::parse,
Self {