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Make sr-api-macros and srml-support renaming of crates (#1757)

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Procedural do not support `$crate` to get access to the crate where the
macro is defined. We use a hack to re-export the crate under a known
name. With rust edition 2018, people started to rename their crates in
`Cargo.toml`, but that breaks the re-export. This commit introduces
`proc-maco-crate` that supports finding the requested crate name, even
if it was renamed.
This commit is contained in:
Bastian Köcher
2019-02-11 13:58:41 +01:00
committed by GitHub
parent 35a4aa638c
commit f9975af020
16 changed files with 135 additions and 35 deletions
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substrate/core/sr-api-macros/src/lib.rs
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@@ -22,6 +22,7 @@ extern crate proc_macro2;
extern crate quote;
extern crate syn;
extern crate blake2_rfc;
extern crate proc_macro_crate;
use proc_macro::TokenStream;