modup-api 0.1.0

just a library for modup application
Documentation 
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// Copyright 2025 Jaroslav Vizner
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use std::ffi::c_void;

/// Messages that can be sent from the host to the plugin
#[repr(C)]
#[derive(Debug, Clone)]
pub enum FfiMessage {
    InputChanged,
    TextChanged(String),
    Submit,
}

/// Virtual table every plugin must expose
#[repr(C)]
pub struct ModuleVTable {
    pub new: unsafe extern "C" fn() -> *mut c_void,
    pub drop: unsafe extern "C" fn(state: *mut c_void),
    pub update: unsafe extern "C" fn(state: *mut c_void, message: FfiMessage) -> *mut c_void,
    pub view: unsafe extern "C" fn(state: *mut c_void) -> *mut c_void,
    pub subscription: unsafe extern "C" fn(state: *mut c_void) -> *mut c_void,
}

pub type PluginInitFn = unsafe extern "C" fn() -> *const ModuleVTable;