| 30 | |
| 31 | impl ActiveEnum { |
| 32 | fn new(input: syn::DeriveInput) -> Result<Self, Error> { |
| 33 | let ident_span = input.ident.span(); |
| 34 | let ident = input.ident; |
| 35 | |
| 36 | let mut enum_name = ident.to_string().to_upper_camel_case(); |
| 37 | let mut rs_type = Err(Error::TT(quote_spanned! { |
| 38 | ident_span => compile_error!("Missing macro attribute `rs_type`"); |
| 39 | })); |
| 40 | let mut db_type = Err(Error::TT(quote_spanned! { |
| 41 | ident_span => compile_error!("Missing macro attribute `db_type`"); |
| 42 | })); |
| 43 | let mut rename_all = None; |
| 44 | |
| 45 | input |
| 46 | .attrs |
| 47 | .iter() |
| 48 | .filter(|attr| attr.path().is_ident("sea_orm")) |
| 49 | .try_for_each(|attr| { |
| 50 | attr.parse_nested_meta(|meta| { |
| 51 | if meta.path.is_ident("rs_type") { |
| 52 | let litstr: LitStr = meta.value()?.parse()?; |
| 53 | rs_type = |
| 54 | syn::parse_str::<TokenStream>(&litstr.value()).map_err(Error::Syn); |
| 55 | } else if meta.path.is_ident("db_type") { |
| 56 | let litstr: LitStr = meta.value()?.parse()?; |
| 57 | let s = litstr.value(); |
| 58 | match s.as_ref() { |
| 59 | "Enum" => { |
| 60 | db_type = Ok(quote! { |
| 61 | Enum { |
| 62 | name: <Self as sea_orm::ActiveEnum>::name(), |
| 63 | variants: Self::iden_values(), |
| 64 | } |
| 65 | }) |
| 66 | } |
| 67 | _ => { |
| 68 | db_type = syn::parse_str::<TokenStream>(&s).map_err(Error::Syn); |
| 69 | } |
| 70 | } |
| 71 | } else if meta.path.is_ident("enum_name") { |
| 72 | let litstr: LitStr = meta.value()?.parse()?; |
| 73 | enum_name = litstr.value(); |
| 74 | } else if meta.path.is_ident("rename_all") { |
| 75 | rename_all = Some((&meta).try_into()?); |
| 76 | } else { |
| 77 | return Err(meta.error(format!( |
| 78 | "Unknown attribute parameter found: {:?}", |
| 79 | meta.path.get_ident() |
| 80 | ))); |
| 81 | } |
| 82 | Ok(()) |
| 83 | }) |
| 84 | .map_err(Error::Syn) |
| 85 | })?; |
| 86 | |
| 87 | let variant_vec = match input.data { |
| 88 | syn::Data::Enum(syn::DataEnum { variants, .. }) => variants, |
| 89 | _ => return Err(Error::InputNotEnum), |