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use proc_macro::TokenStream;
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use quote::quote;
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use syn::{parse_macro_input, ItemFn};
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extern crate proc_macro;
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#[proc_macro]
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pub fn plugin(metadata: TokenStream) -> TokenStream {
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emit_plugin_api().into()
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}
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#[proc_macro_attribute]
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pub fn plugin_init(attribute: TokenStream, item: TokenStream) -> TokenStream {
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let input = parse_macro_input!(item as ItemFn);
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let func = input.sig.ident.clone();
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quote! {
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#[doc(hidden)]
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#[no_mangle]
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unsafe extern "C" fn __plugin_init() {
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#func(&mut ::giterated_plugin::local::PluginStackBuilder::new()).unwrap()
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}
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#input
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}
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.into()
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}
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fn emit_plugin_api() -> impl Into<TokenStream> {
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quote! {
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#[doc(hidden)]
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#[no_mangle]
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unsafe extern "C" fn __load_runtime_vtable(vtable: &'static ::giterated_plugin::abi::vtable::VTable<::giterated_plugin::abi::vtable::runtime::RuntimeHandle>) {
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todo!("runtime vtable insertion is not implemented")
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}
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#[doc(hidden)]
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#[no_mangle]
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unsafe extern "C" fn __get_plugin_vtable() -> &'static ::giterated_plugin::abi::vtable::VTable<::giterated_plugin::abi::vtable::plugin::Plugin> {
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unsafe extern "C" fn plugin_name() -> ::giterated_plugin::abi::FfiSliceRef<str> {
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::giterated_plugin::abi::FfiSliceRef::static_ref("plugin name")
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}
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unsafe extern "C" fn plugin_version() -> ::giterated_plugin::abi::FfiSliceRef<str> {
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::giterated_plugin::abi::FfiSliceRef::static_ref("0.0.1")
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}
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unsafe extern "C" fn type_metadata() -> ::giterated_plugin::abi::value_ex::FfiValueRefUntyped {
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todo!()
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}
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static PLUGIN_VTABLE: ::giterated_plugin::abi::vtable::plugin::PluginVTable = ::giterated_plugin::abi::vtable::plugin::PluginVTable {
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plugin_name,
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plugin_version,
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type_metadata
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};
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::giterated_plugin::abi::vtable::VTable::new(&PLUGIN_VTABLE)
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}
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}
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}
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