37 lines
976 B
Rust
37 lines
976 B
Rust
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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pub fn bevy_main(_attr: TokenStream, item: TokenStream) -> TokenStream {
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let input = parse_macro_input!(item as ItemFn);
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if input.sig.ident != "main" {
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panic!("bevy_main can only be used on a function called 'main'")
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}
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TokenStream::from(quote! {
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#[no_mangle]
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#[cfg(target_os = "android")]
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unsafe extern "C" fn ANativeActivity_onCreate(
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activity: *mut std::os::raw::c_void,
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saved_state: *mut std::os::raw::c_void,
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saved_state_size: usize,
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) {
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bevy::ndk_glue::init(
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activity as _,
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saved_state as _,
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saved_state_size as _,
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main,
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);
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}
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#[no_mangle]
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#[cfg(target_os = "ios")]
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extern "C" fn main_rs() {
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main();
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}
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#[allow(unused)]
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#input
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})
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}
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