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Make transactional attribute less scope dependent (#7112)

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* Make `transactional` attribute less scope dependent

The old implementation expected that `frame-support` wasn't imported
under a different name. Besides that the pr removes some whitespaces.

* Update frame/support/procedural/src/lib.rs

Co-authored-by: Guillaume Thiolliere <gui.thiolliere@gmail.com>
This commit is contained in:
Bastian Köcher
2020-09-16 00:03:50 +02:00
committed by GitHub
parent a5ef77b86a
commit bdd79c93ba
3 changed files with 32 additions and 12 deletions
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substrate/frame/support/procedural/tools/src/lib.rs
+19
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@@ -46,6 +46,25 @@ pub fn generate_crate_access(unique_id: &str, def_crate: &str) -> TokenStream {
}
}
/// Generate the crate access for the `frame-support` crate using 2018 syntax.
///
/// Output will for example be `frame_support`.
pub fn generate_crate_access_2018() -> Result<TokenStream, Error> {
if std::env::var("CARGO_PKG_NAME").unwrap() == "frame-support" {
Ok(quote::quote!( frame_support ))
} else {
match crate_name("frame-support") {
Ok(name) => {
let name = Ident::new(&name, Span::call_site());
Ok(quote!( #name ))
},
Err(e) => {
Err(Error::new(Span::call_site(), &e))
}
}
}
}
/// Generates the hidden includes that are required to make the macro independent from its scope.
pub fn generate_hidden_includes(unique_id: &str, def_crate: &str) -> TokenStream {
if std::env::var("CARGO_PKG_NAME").unwrap() == def_crate {