tree.rs - mozsearch

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// Copyright 2023 The Servo Project Developers. See the COPYRIGHT

// file at the top-level directory of this distribution.

//

// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or

// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license

// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your

// option. This file may not be copied, modified, or distributed

// except according to those terms.

use std::os::raw::c_void;

use crate::base::{CFAllocatorRef, CFComparatorFunction, CFIndex, CFTypeID};

use crate::string::CFStringRef;

#[repr(C)]

pub struct __CFTree(c_void);

pub type CFTreeRef = *mut __CFTree;

pub type CFTreeRetainCallBack = extern "C" fn(info: *const c_void) -> *const c_void;

pub type CFTreeReleaseCallBack = extern "C" fn(info: *const c_void);

pub type CFTreeCopyDescriptionCallBack = extern "C" fn(info: *const c_void) -> CFStringRef;

pub type CFTreeApplierFunction = extern "C" fn(value: *const c_void, context: *mut c_void);

#[repr(C)]

pub struct CFTreeContext {

    pub version: CFIndex,

    pub info: *mut c_void,

    pub retain: CFTreeRetainCallBack,

    pub release: CFTreeReleaseCallBack,

    pub copyDescription: CFTreeCopyDescriptionCallBack,

extern "C" {

/*

     * CFTree.h

*/

    /* Creating Trees */

    pub fn CFTreeCreate(allocator: CFAllocatorRef, context: *const CFTreeContext) -> CFTreeRef;

    /* Modifying a Tree */

    pub fn CFTreeAppendChild(tree: CFTreeRef, newChild: CFTreeRef);

    pub fn CFTreeInsertSibling(tree: CFTreeRef, newSibling: CFTreeRef);

    pub fn CFTreeRemoveAllChildren(tree: CFTreeRef);

    pub fn CFTreePrependChild(tree: CFTreeRef, newChild: CFTreeRef);

    pub fn CFTreeRemove(tree: CFTreeRef);

    pub fn CFTreeSetContext(tree: CFTreeRef, context: *const CFTreeContext);

    /* Sorting a Tree */

    pub fn CFTreeSortChildren(

        tree: CFTreeRef,

        comparator: CFComparatorFunction,

        context: *mut c_void,

);

    /* Examining a Tree */

    pub fn CFTreeFindRoot(tree: CFTreeRef) -> CFTreeRef;

    pub fn CFTreeGetChildAtIndex(tree: CFTreeRef, idx: CFIndex) -> CFTreeRef;

    pub fn CFTreeGetChildCount(tree: CFTreeRef) -> CFIndex;

    pub fn CFTreeGetChildren(tree: CFTreeRef, children: *mut CFTreeRef);

    pub fn CFTreeGetContext(tree: CFTreeRef, context: *mut CFTreeContext);

    pub fn CFTreeGetFirstChild(tree: CFTreeRef) -> CFTreeRef;

    pub fn CFTreeGetNextSibling(tree: CFTreeRef) -> CFTreeRef;

    pub fn CFTreeGetParent(tree: CFTreeRef) -> CFTreeRef;

    /* Performing an Operation on Tree Elements */

    pub fn CFTreeApplyFunctionToChildren(

        tree: CFTreeRef,

        applier: CFTreeApplierFunction,

        context: *mut c_void,

);

    /* Getting the Tree Type ID */

    pub fn CFTreeGetTypeID() -> CFTypeID;