ext-php-rs-derive 0.11.11

Derive macros for ext-php-rs.
Documentation 
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use proc_macro2::{Span, TokenStream};
use quote::ToTokens;
use syn::{ItemFn, LitStr};

#[cfg(windows)]
const ABI: &str = "vectorcall";
#[cfg(not(windows))]
const ABI: &str = "C";

/// Parses a function and sets the correct ABI to interact with PHP depending
/// on the OS.
///
/// On Windows, this sets the extern ABI to vectorcall while on all other OS
/// it sets it to C.
pub fn parser(mut input: ItemFn) -> TokenStream {
    if let Some(abi) = &mut input.sig.abi {
        abi.name = Some(LitStr::new(ABI, Span::call_site()));
    }
    input.to_token_stream()
}