80 lines
3.3 KiB
Rust
80 lines
3.3 KiB
Rust
/// The foreign function interface for the growth rate library.
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mod growth_rate_library;
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/// The foreign function interface for the library settings.
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mod library_settings;
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/// The foreign function interface for the nature library.
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mod nature_library;
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/// The foreign function interface for the static data.
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mod static_data;
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/// The foreign function interface for the type library.
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mod type_library;
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use crate::ffi::{BorrowedPtr, IdentifiablePointer, OwnedPtr};
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use crate::static_data::*;
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use std::ffi::{c_char, CStr};
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use std::ptr::drop_in_place;
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use std::sync::Arc;
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/// Generates foreign function interfaces for a DataLibrary trait implementation.
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macro_rules! library_interface {
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($library_type_name:ident, $library_type:ty, $return_type:ty) => {
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paste::paste! {
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#[no_mangle]
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extern "C" fn [< $library_type_name:snake _new >](capacity: usize) -> IdentifiablePointer<$library_type> {
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let value: $library_type = Box::new([<$library_type_name Impl>]::new(capacity));
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value.into()
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}
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#[no_mangle]
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unsafe extern "C" fn [< $library_type_name:snake _drop >](ptr: OwnedPtr<$library_type>) {
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drop_in_place(ptr);
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}
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#[no_mangle]
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unsafe extern "C" fn [< $library_type_name:snake _add >](ptr: OwnedPtr<$library_type>, key: BorrowedPtr<c_char>, value: OwnedPtr<Arc<$return_type>>) {
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let lib = ptr.as_mut().unwrap();
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lib.add(&CStr::from_ptr(key).into(), *Box::from_raw(value));
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}
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#[no_mangle]
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unsafe extern "C" fn [< $library_type_name:snake _remove >](ptr: OwnedPtr<$library_type>, key: BorrowedPtr<c_char>) {
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let lib = ptr.as_mut().unwrap();
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lib.remove(&CStr::from_ptr(key).into());
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}
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#[no_mangle]
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unsafe extern "C" fn [< $library_type_name:snake _get >](ptr: OwnedPtr<$library_type>, key: BorrowedPtr<c_char>) -> IdentifiablePointer<Arc<$return_type>> {
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let lib = ptr.as_mut().unwrap();
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let v = lib.get(&CStr::from_ptr(key).into());
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if let Some(value) = v {
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value.clone().into()
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} else {
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IdentifiablePointer::none()
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}
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}
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#[no_mangle]
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unsafe extern "C" fn [< $library_type_name:snake _get_key_by_index >](ptr: OwnedPtr<$library_type>, index: usize) -> OwnedPtr<c_char> {
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let lib = ptr.as_mut().unwrap();
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let v = lib.get_key_by_index(index);
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if let Some(value) = v {
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std::ffi::CString::new(value.str()).unwrap().into_raw()
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} else {
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std::ptr::null_mut()
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}
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}
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#[no_mangle]
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unsafe extern "C" fn [< $library_type_name:snake _len >](ptr: OwnedPtr<$library_type>) -> usize {
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let lib = ptr.as_mut().unwrap();
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lib.len()
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}
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}
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};
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}
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library_interface!(SpeciesLibrary, Box<dyn SpeciesLibrary>, dyn Species);
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library_interface!(MoveLibrary, Box<dyn MoveLibrary>, dyn MoveData);
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library_interface!(AbilityLibrary, Box<dyn AbilityLibrary>, dyn Ability);
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library_interface!(ItemLibrary, Box<dyn ItemLibrary>, dyn Item);
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