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Update syn, quote and proc-macro2 #940

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merged 5 commits into from
Apr 11, 2018
Merged

Update syn, quote and proc-macro2 #940

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f6dae81
Update `syn`, `quote` and `proc-macro2`
hcpl Apr 4, 2018
19278a5
Merge branch 'master' into update-syn-quote-proc-macro2
Apr 11, 2018
b785ac1
Update usages of `proc-macro` to latest nightly
hcpl Apr 11, 2018
2cd7940
Re-add async/await to the facade
hcpl Apr 11, 2018
4ca5cfe
Fix a test
hcpl Apr 11, 2018
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8 changes: 4 additions & 4 deletions futures-macro-async/Cargo.toml
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Original file line number Diff line number Diff line change
Expand Up @@ -13,12 +13,12 @@ few other assorted macros.
proc-macro = true

[dependencies]
quote = "0.4"
proc-macro2 = "0.2"
quote = "0.5"
proc-macro2 = "0.3"

[dependencies.syn]
version = "0.12.13"
features = ["full", "fold", "parsing", "printing", "extra-traits"]
version = "0.13"
features = ["full", "fold", "parsing", "printing", "extra-traits", "proc-macro"]
default-features = false

[features]
Expand Down
4 changes: 2 additions & 2 deletions futures-macro-async/src/elision.rs
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@@ -1,4 +1,4 @@
use proc_macro2::{Term, Span};
use proc_macro2::Span;
use syn::*;
use syn::punctuated::Punctuated;
use syn::token::Comma;
Expand Down Expand Up @@ -34,7 +34,7 @@ impl<'a> UnelideLifetimes<'a> {
// Constitute a new lifetime
fn new_lifetime(&mut self) -> Lifetime {
let lifetime_name = format!("{}{}", self.lifetime_name, self.count);
let lifetime = Lifetime::new(Term::intern(&lifetime_name), Span::call_site());
let lifetime = Lifetime::new(&lifetime_name, Span::call_site());

let idx = self.lifetime_index + self.count as usize;
self.generics.insert(idx, GenericParam::Lifetime(LifetimeDef::new(lifetime.clone())));
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16 changes: 8 additions & 8 deletions futures-macro-async/src/lib.rs
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Expand Up @@ -573,19 +573,19 @@ if_nightly! {
let mut spans = Tokens::new();
tokens.to_tokens(&mut spans);
let good_tokens = proc_macro2::TokenStream::from(spans).into_iter().collect::<Vec<_>>();
let first_span = good_tokens.first().map(|t| t.span).unwrap_or(Span::def_site());
let last_span = good_tokens.last().map(|t| t.span).unwrap_or(first_span);
let first_span = good_tokens.first().map(|t| t.span()).unwrap_or(Span::call_site());
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Should this really be call_site or better to make first_last function to return proc_macro::Span?

let last_span = good_tokens.last().map(|t| t.span()).unwrap_or(first_span);
(first_span, last_span)
}

fn respan(input: proc_macro2::TokenStream,
&(first_span, last_span): &(Span, Span)) -> proc_macro2::TokenStream {
let mut new_tokens = input.into_iter().collect::<Vec<_>>();
if let Some(token) = new_tokens.first_mut() {
token.span = first_span;
token.set_span(first_span);
}
for token in new_tokens.iter_mut().skip(1) {
token.span = last_span;
token.set_span(last_span);
}
new_tokens.into_iter().collect()
}
Expand All @@ -595,8 +595,8 @@ if_nightly! {
{
let mut new_tokens = Tokens::new();
for token in input.into_iter() {
match token.kind {
proc_macro2::TokenNode::Op('!', _) => tokens.to_tokens(&mut new_tokens),
match token {
proc_macro2::TokenTree::Op(op) if op.op() == '!' => tokens.to_tokens(&mut new_tokens),
_ => token.to_tokens(&mut new_tokens),
}
}
Expand All @@ -609,8 +609,8 @@ if_nightly! {
let mut replacements = replacements.iter().cycle();
let mut new_tokens = Tokens::new();
for token in input.into_iter() {
match token.kind {
proc_macro2::TokenNode::Op('!', _) => {
match token {
proc_macro2::TokenTree::Op(op) if op.op() == '!' => {
replacements.next().unwrap().to_tokens(&mut new_tokens);
}
_ => token.to_tokens(&mut new_tokens),
Expand Down