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authorHampusM <hampus@hampusmat.com>2022-07-20 14:29:45 +0200
committerHampusM <hampus@hampusmat.com>2022-07-20 14:29:45 +0200
commit2d1a6b2d432408d74eb57e0bda3f7434617e1070 (patch)
tree7e21f8126edfdfd9c40b4b51ba5626c6440442d9 /syrette_macros/src/libs/intertrait_macros/gen_caster.rs
parent7863d9859a5cbce99c3769e4fdb40283115d358d (diff)
refactor: reorganize folder hierarchy
Diffstat (limited to 'syrette_macros/src/libs/intertrait_macros/gen_caster.rs')
-rw-r--r--syrette_macros/src/libs/intertrait_macros/gen_caster.rs55
1 files changed, 0 insertions, 55 deletions
diff --git a/syrette_macros/src/libs/intertrait_macros/gen_caster.rs b/syrette_macros/src/libs/intertrait_macros/gen_caster.rs
deleted file mode 100644
index 9126200..0000000
--- a/syrette_macros/src/libs/intertrait_macros/gen_caster.rs
+++ /dev/null
@@ -1,55 +0,0 @@
-/**
- * Originally from Intertrait by CodeChain
- *
- * <https://github.com/CodeChain-io/intertrait>
- * <https://crates.io/crates/intertrait/0.2.2>
- *
- * Licensed under either of
- *
- * Apache License, Version 2.0 (LICENSE-APACHE or <http://www.apache.org/licenses/LICENSE-2.0>)
- * MIT license (LICENSE-MIT or <http://opensource.org/licenses/MIT>)
-
- * at your option.
-*/
-use std::str::from_utf8_unchecked;
-
-use proc_macro2::TokenStream;
-use quote::format_ident;
-use quote::quote;
-use quote::ToTokens;
-use uuid::adapter::Simple;
-use uuid::Uuid;
-
-pub fn generate_caster(ty: &impl ToTokens, trait_: &impl ToTokens) -> TokenStream
-{
- let mut fn_buf = [0u8; FN_BUF_LEN];
-
- let fn_ident = format_ident!("{}", new_fn_name(&mut fn_buf));
-
- let new_caster = quote! {
- syrette::libs::intertrait::Caster::<dyn #trait_>::new(
- |from| from.downcast::<#ty>().unwrap(),
- |from| from.downcast::<#ty>().unwrap(),
- )
- };
-
- quote! {
- #[syrette::libs::linkme::distributed_slice(syrette::libs::intertrait::CASTERS)]
- #[linkme(crate = syrette::libs::linkme)]
- fn #fn_ident() -> (::std::any::TypeId, syrette::libs::intertrait::BoxedCaster) {
- (::std::any::TypeId::of::<#ty>(), Box::new(#new_caster))
- }
- }
-}
-
-const FN_PREFIX: &[u8] = b"__";
-const FN_BUF_LEN: usize = FN_PREFIX.len() + Simple::LENGTH;
-
-fn new_fn_name(buf: &mut [u8]) -> &str
-{
- buf[..FN_PREFIX.len()].copy_from_slice(FN_PREFIX);
- Uuid::new_v4()
- .to_simple()
- .encode_lower(&mut buf[FN_PREFIX.len()..]);
- unsafe { from_utf8_unchecked(&buf[..FN_BUF_LEN]) }
-}