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Derive TypeInfo impls for meta type definitions #21

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ascjones wants to merge 13 commits into from
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Derive TypeInfo impls for meta type definitions #21

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e77fd47
Add bounds for generic type param
ascjones Sep 8, 2020
506da3f
Fmt
ascjones Sep 9, 2020
08e267b
Remove redundant clone
ascjones Sep 9, 2020
62a28e3
Make clippy happy
ascjones Sep 9, 2020
477ff96
Impl TypeInfo for Path
ascjones Sep 7, 2020
66d8d08
Impl TypeInfo for Fields and NonZero types
ascjones Sep 7, 2020
a8bd169
Impl TypeInfo for Variants
ascjones Sep 7, 2020
37d435c
Impl TypeInfo for TypeDefComposite
ascjones Sep 7, 2020
4eebe4d
TypeInfo for Composite type
ascjones Sep 7, 2020
7ed8235
Add more type variants
ascjones Sep 8, 2020
ac58b2d
dogfood WIP
ascjones Sep 8, 2020
62fd0ef
Remove redundant symbols after rebase
ascjones Sep 9, 2020
4188f02
Derive TypeInfo imps with dogfood
ascjones Sep 9, 2020
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Remove redundant symbols after rebase
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@ascjones
ascjones committed Sep 9, 2020
commit 62fd0efa09a501eea98257be0f740acd8a9aae31
32 changes: 0 additions & 32 deletions derive/src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -17,7 +17,6 @@
extern crate alloc;

mod impl_wrapper;
mod symbol;
mod trait_bounds;

use alloc::vec::Vec;
Expand All @@ -30,7 +29,6 @@ use syn::{
token::Comma,
Data, DataEnum, DataStruct, DeriveInput, Expr, ExprLit, Field, Fields, Lit, Variant,
};
use symbol::*;

#[proc_macro_derive(TypeInfo)]
pub fn type_info(input: TokenStream) -> TokenStream {
Expand Down Expand Up @@ -60,36 +58,6 @@ fn generate_type(input: TokenStream2) -> Result<TokenStream2> {
}
});

let meta_items = ast
.attrs
.iter()
.flat_map(|attr| {
if attr.path != SCALE_INFO {
return Ok(Vec::new())
}

match attr.parse_meta() {
Ok(List(meta)) => Ok(meta.nested.into_iter().collect()),
Ok(other) => {
cx.error_spanned_by(other, "expected #[scale_info(...)]");
Err(())
}
Err(err) => {
cx.syn_error(err);
Err(())
}
}
})
.flatten();

// Parse `#[serde(bound = "T: SomeBound")]`
// Meta(NameValue(m)) if m.path == BOUND => {
// if let Ok(where_predicates) = parse_lit_into_where(cx, BOUND, BOUND, &m.lit) {
// ser_bound.set(&m.path, where_predicates.clone());
// de_bound.set(&m.path, where_predicates);
// }
// }

let ast: DeriveInput = syn::parse2(input.clone())?;
let build_type = match &ast.data {
Data::Struct(ref s) => generate_composite_type(s),
Expand Down
49 changes: 0 additions & 49 deletions derive/src/symbol.rs
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