extern crate proc_macro;
use crate::proc_macro::TokenStream;
use quote::quote;
use syn::{self, DeriveInput, Ident};
#[proc_macro_derive(FromRaw)]
pub fn from_raw_macro_derive(input: TokenStream) -> TokenStream {
impl_from_raw(&syn::parse(input).unwrap())
}
fn impl_from_raw(ast: &DeriveInput) -> TokenStream {
let name = &ast.ident;
let generics = &ast.generics;
let gen = quote! {
impl #generics crate::ffi::FromRaw<#name #generics> for #name #generics {}
};
gen.into()
}
#[proc_macro_derive(CloneRaw)]
pub fn clone_raw_macro_derive(input: TokenStream) -> TokenStream {
impl_clone_raw(&syn::parse(input).unwrap())
}
fn impl_clone_raw(ast: &DeriveInput) -> TokenStream {
let name = &ast.ident;
let generics = &ast.generics;
let gen = quote! {
impl #generics crate::ffi::CloneRaw<#name #generics> for #name #generics {}
};
gen.into()
}
#[proc_macro_derive(AsRaw)]
pub fn as_raw_macro_derive(input: TokenStream) -> TokenStream {
impl_as_raw(&syn::parse(input).unwrap())
}
fn impl_as_raw(ast: &DeriveInput) -> TokenStream {
let name = &ast.ident;
let generics = &ast.generics;
let gen = quote! {
impl #generics crate::ffi::AsRaw for #name #generics {}
};
gen.into()
}
#[proc_macro_derive(BuilderDelegate)]
pub fn builder_delegate_macro_derive(input: TokenStream) -> TokenStream {
impl_builder_delegate(&syn::parse(input).unwrap())
}
fn impl_builder_delegate(ast: &DeriveInput) -> TokenStream {
let name = &ast.ident;
let builder: Ident = syn::parse_str(&format!("{}Builder", name)).unwrap();
let generics = &ast.generics;
let gen = quote! {
impl #generics crate::prelude::BuilderDelegate<#builder #generics> for #name #generics {}
};
gen.into()
}