| 1 | // Take a look at the license at the top of the repository in the LICENSE file. |
| 2 | |
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| 3 | mod enums; |
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| 4 | mod fields; |
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| 5 | mod structs; |
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| 6 | |
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| 7 | use proc_macro::TokenStream; |
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| 8 | use syn::{Data, DeriveInput}; |
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| 9 | |
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| 10 | pub fn impl_downgrade(input: DeriveInput) -> TokenStream { |
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| 11 | match input.data { |
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| 12 | Data::Struct(data_struct: DataStruct) => { |
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| 13 | structs::derive_downgrade_for_struct(input.ident, input.generics, data_struct) |
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| 14 | } |
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| 15 | Data::Enum(data_enum: DataEnum) => { |
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| 16 | enums::derive_downgrade_for_enum(input.ident, input.generics, data_enum) |
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| 17 | } |
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| 18 | Data::Union(..) => { |
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| 19 | panic!("#[derive(Downgrade)] is not available for unions." ); |
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| 20 | } |
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| 21 | } |
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| 22 | } |
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| 23 | |
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