From 7f368d46ea06164da025c1ac4ed9a65ad23b25ef Mon Sep 17 00:00:00 2001 From: Wojtek Kosior Date: Wed, 12 May 2021 16:00:09 +0200 Subject: stop using js modules --- background/reverse_use_info.mjs | 93 ----------------------------------------- 1 file changed, 93 deletions(-) delete mode 100644 background/reverse_use_info.mjs (limited to 'background/reverse_use_info.mjs') diff --git a/background/reverse_use_info.mjs b/background/reverse_use_info.mjs deleted file mode 100644 index c38c52f..0000000 --- a/background/reverse_use_info.mjs +++ /dev/null @@ -1,93 +0,0 @@ -/** -* Myext scripts and bundles usage index -* -* Copyright (C) 2021 Wojtek Kosior -* -* Dual-licensed under: -* - 0BSD license -* - GPLv3 or (at your option) any later version -*/ - -import TYPE_PREFIX from '/common/stored_types.mjs'; -import get_storage from './storage.mjs'; -import make_once from '/common/once.mjs'; - -"use strict"; - -/* - * We want to count referenes to scripts and bundles in order to know, - * for example, whether one can be safely deleted. - */ - -var component_uses = new Map(); -var storage; - -function add_use_info_by_item(prefix, item, components) -{ - for (let component of components) { - component = component.join(""); - - let used_by_info = component_uses.get(component); - - if (used_by_info === undefined) { - used_by_info = {}; - component_uses.set(component, used_by_info); - } - - if (used_by_info[prefix] === undefined) - used_by_info[prefix] = new Set(); - - used_by_info[prefix].add(item); - } -} - -function remove_use_info_by_item(prefix, item, components) -{ - for (let component of components) { - used_by_info = component_uses.get(component.join("")); - if (used_by_info === undefined || used_by_info[prefix] === undefined) - return; - - used_by_info[prefix].delete(item); - } -} - -function build_reverse_uses_info(entries_it, type_prefix) -{ - for (let [item, components] of storage.get_all_it(type_prefix)) - add_use_info_by_item(type_prefix, item, components); -} - -function handle_change(change) -{ - if (change.old_val !== undefined) - remove_use_info_by_item(change.prefix, change.item, change.old_val); - - if (change.new_val !== undefined) - add_use_info_by_item(change.prefix, change.item, change.new_val); -} - -function get_uses(arg1, arg2=undefined) -{ - let [prefix, item] = [arg1, arg2]; - - if (arg2 === undefined) - [prefix, item] = arg1; - - return component_uses.get(prefix + item); -} - -async function init() -{ - storage = await get_storage(); - - prefixes = [TYPE_PREFIX.PAGE, TYPE_PREFIX.BUNDLE]; - for (let prefix of prefixes) - build_reverse_uses_info(prefix); - - storage.add_change_listener(handle_change, prefixes); - - return get_uses; -} - -export default make_once(init); -- cgit v1.2.3