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2972x 2972x 2972x 2972x 2972x 2972x 2972x 5768x 2x 2x 2x 2x 2x 2x 2x 98x 98x 2x 2x 2x 2x 2x 168x 168x 130x 130x 130x 130x 160x 30x 30x 130x 130x 130x 160x 70x 70x 70x 70x 70x 70x 70x 70x 130x 160x 72x 92x 84x 84x 92x 72x 168x | /** @import { ComponentContext, ComponentContextLegacy, Derived, Effect, Reaction, TemplateNode, TransitionManager } from '#client' */
import {
check_dirtiness,
component_context,
active_effect,
active_reaction,
dev_current_component_function,
update_effect,
get,
is_destroying_effect,
is_flushing_effect,
remove_reactions,
schedule_effect,
set_active_reaction,
set_is_destroying_effect,
set_is_flushing_effect,
set_signal_status,
untrack
} from '../runtime.js';
import {
DIRTY,
BRANCH_EFFECT,
RENDER_EFFECT,
EFFECT,
DESTROYED,
INERT,
EFFECT_RAN,
BLOCK_EFFECT,
ROOT_EFFECT,
EFFECT_TRANSPARENT,
DERIVED,
UNOWNED,
CLEAN,
INSPECT_EFFECT,
HEAD_EFFECT,
MAYBE_DIRTY,
EFFECT_HAS_DERIVED
} from '../constants.js';
import { set } from './sources.js';
import * as e from '../errors.js';
import { DEV } from 'esm-env';
import { define_property } from '../../shared/utils.js';
import { get_next_sibling } from '../dom/operations.js';
import { destroy_derived } from './deriveds.js';
/**
* @param {'$effect' | '$effect.pre' | '$inspect'} rune
*/
export function validate_effect(rune) {
if (active_effect === null && active_reaction === null) {
e.effect_orphan(rune);
}
if (active_reaction !== null && (active_reaction.f & UNOWNED) !== 0) {
e.effect_in_unowned_derived();
}
if (is_destroying_effect) {
e.effect_in_teardown(rune);
}
}
/**
* @param {Effect} effect
* @param {Effect} parent_effect
*/
function push_effect(effect, parent_effect) {
var parent_last = parent_effect.last;
if (parent_last === null) {
parent_effect.last = parent_effect.first = effect;
} else {
parent_last.next = effect;
effect.prev = parent_last;
parent_effect.last = effect;
}
}
/**
* @param {number} type
* @param {null | (() => void | (() => void))} fn
* @param {boolean} sync
* @param {boolean} push
* @returns {Effect}
*/
function create_effect(type, fn, sync, push = true) {
var is_root = (type & ROOT_EFFECT) !== 0;
var parent_effect = active_effect;
if (DEV) {
// Ensure the parent is never an inspect effect
while (parent_effect !== null && (parent_effect.f & INSPECT_EFFECT) !== 0) {
parent_effect = parent_effect.parent;
}
}
/** @type {Effect} */
var effect = {
ctx: component_context,
deps: null,
deriveds: null,
nodes_start: null,
nodes_end: null,
f: type | DIRTY,
first: null,
fn,
last: null,
next: null,
parent: is_root ? null : parent_effect,
prev: null,
teardown: null,
transitions: null,
version: 0
};
if (DEV) {
effect.component_function = dev_current_component_function;
}
if (sync) {
var previously_flushing_effect = is_flushing_effect;
try {
set_is_flushing_effect(true);
update_effect(effect);
effect.f |= EFFECT_RAN;
} catch (e) {
destroy_effect(effect);
throw e;
} finally {
set_is_flushing_effect(previously_flushing_effect);
}
} else if (fn !== null) {
schedule_effect(effect);
}
// if an effect has no dependencies, no DOM and no teardown function,
// don't bother adding it to the effect tree
var inert =
sync &&
effect.deps === null &&
effect.first === null &&
effect.nodes_start === null &&
effect.teardown === null &&
(effect.f & EFFECT_HAS_DERIVED) === 0;
if (!inert && !is_root && push) {
if (parent_effect !== null) {
push_effect(effect, parent_effect);
}
// if we're in a derived, add the effect there too
if (active_reaction !== null && (active_reaction.f & DERIVED) !== 0) {
var derived = /** @type {Derived} */ (active_reaction);
(derived.children ??= []).push(effect);
}
}
return effect;
}
/**
* Internal representation of `$effect.tracking()`
* @returns {boolean}
*/
export function effect_tracking() {
if (active_reaction === null) {
return false;
}
return (active_reaction.f & UNOWNED) === 0;
}
/**
* @param {() => void} fn
*/
export function teardown(fn) {
const effect = create_effect(RENDER_EFFECT, null, false);
set_signal_status(effect, CLEAN);
effect.teardown = fn;
return effect;
}
/**
* Internal representation of `$effect(...)`
* @param {() => void | (() => void)} fn
*/
export function user_effect(fn) {
validate_effect('$effect');
// Non-nested `$effect(...)` in a component should be deferred
// until the component is mounted
var defer =
active_effect !== null &&
(active_effect.f & BRANCH_EFFECT) !== 0 &&
component_context !== null &&
!component_context.m;
if (DEV) {
define_property(fn, 'name', {
value: '$effect'
});
}
if (defer) {
var context = /** @type {ComponentContext} */ (component_context);
(context.e ??= []).push({
fn,
effect: active_effect,
reaction: active_reaction
});
} else {
var signal = effect(fn);
return signal;
}
}
/**
* Internal representation of `$effect.pre(...)`
* @param {() => void | (() => void)} fn
* @returns {Effect}
*/
export function user_pre_effect(fn) {
validate_effect('$effect.pre');
if (DEV) {
define_property(fn, 'name', {
value: '$effect.pre'
});
}
return render_effect(fn);
}
/** @param {() => void | (() => void)} fn */
export function inspect_effect(fn) {
return create_effect(INSPECT_EFFECT, fn, true);
}
/**
* Internal representation of `$effect.root(...)`
* @param {() => void | (() => void)} fn
* @returns {() => void}
*/
export function effect_root(fn) {
const effect = create_effect(ROOT_EFFECT, fn, true);
return () => {
destroy_effect(effect);
};
}
/**
* @param {() => void | (() => void)} fn
* @returns {Effect}
*/
export function effect(fn) {
return create_effect(EFFECT, fn, false);
}
/**
* Internal representation of `$: ..`
* @param {() => any} deps
* @param {() => void | (() => void)} fn
*/
export function legacy_pre_effect(deps, fn) {
var context = /** @type {ComponentContextLegacy} */ (component_context);
/** @type {{ effect: null | Effect, ran: boolean }} */
var token = { effect: null, ran: false };
context.l.r1.push(token);
token.effect = render_effect(() => {
deps();
// If this legacy pre effect has already run before the end of the reset, then
// bail out to emulate the same behavior.
if (token.ran) return;
token.ran = true;
set(context.l.r2, true);
untrack(fn);
});
}
export function legacy_pre_effect_reset() {
var context = /** @type {ComponentContextLegacy} */ (component_context);
render_effect(() => {
if (!get(context.l.r2)) return;
// Run dirty `$:` statements
for (var token of context.l.r1) {
var effect = token.effect;
// If the effect is CLEAN, then make it MAYBE_DIRTY. This ensures we traverse through
// the effects dependencies and correctly ensure each dependency is up-to-date.
if ((effect.f & CLEAN) !== 0) {
set_signal_status(effect, MAYBE_DIRTY);
}
if (check_dirtiness(effect)) {
update_effect(effect);
}
token.ran = false;
}
context.l.r2.v = false; // set directly to avoid rerunning this effect
});
}
/**
* @param {() => void | (() => void)} fn
* @returns {Effect}
*/
export function render_effect(fn) {
return create_effect(RENDER_EFFECT, fn, true);
}
/**
* @param {() => void | (() => void)} fn
* @returns {Effect}
*/
export function template_effect(fn) {
if (DEV) {
define_property(fn, 'name', {
value: '{expression}'
});
}
return block(fn);
}
/**
* @param {(() => void)} fn
* @param {number} flags
*/
export function block(fn, flags = 0) {
return create_effect(RENDER_EFFECT | BLOCK_EFFECT | flags, fn, true);
}
/**
* @param {(() => void)} fn
* @param {boolean} [push]
*/
export function branch(fn, push = true) {
return create_effect(RENDER_EFFECT | BRANCH_EFFECT, fn, true, push);
}
/**
* @param {Effect} effect
*/
export function execute_effect_teardown(effect) {
var teardown = effect.teardown;
if (teardown !== null) {
const previously_destroying_effect = is_destroying_effect;
const previous_reaction = active_reaction;
set_is_destroying_effect(true);
set_active_reaction(null);
try {
teardown.call(null);
} finally {
set_is_destroying_effect(previously_destroying_effect);
set_active_reaction(previous_reaction);
}
}
}
/**
* @param {Effect} signal
* @returns {void}
*/
export function destroy_effect_deriveds(signal) {
var deriveds = signal.deriveds;
if (deriveds !== null) {
signal.deriveds = null;
for (var i = 0; i < deriveds.length; i += 1) {
destroy_derived(deriveds[i]);
}
}
}
/**
* @param {Effect} signal
* @param {boolean} remove_dom
* @returns {void}
*/
export function destroy_effect_children(signal, remove_dom = false) {
var effect = signal.first;
signal.first = signal.last = null;
while (effect !== null) {
var next = effect.next;
destroy_effect(effect, remove_dom);
effect = next;
}
}
/**
* @param {Effect} signal
* @returns {void}
*/
export function destroy_block_effect_children(signal) {
var effect = signal.first;
while (effect !== null) {
var next = effect.next;
if ((effect.f & BRANCH_EFFECT) === 0) {
destroy_effect(effect);
}
effect = next;
}
}
/**
* @param {Effect} effect
* @param {boolean} [remove_dom]
* @returns {void}
*/
export function destroy_effect(effect, remove_dom = true) {
var removed = false;
if ((remove_dom || (effect.f & HEAD_EFFECT) !== 0) && effect.nodes_start !== null) {
/** @type {TemplateNode | null} */
var node = effect.nodes_start;
var end = effect.nodes_end;
while (node !== null) {
/** @type {TemplateNode | null} */
var next = node === end ? null : /** @type {TemplateNode} */ (get_next_sibling(node));
node.remove();
node = next;
}
removed = true;
}
destroy_effect_deriveds(effect);
destroy_effect_children(effect, remove_dom && !removed);
remove_reactions(effect, 0);
set_signal_status(effect, DESTROYED);
var transitions = effect.transitions;
if (transitions !== null) {
for (const transition of transitions) {
transition.stop();
}
}
execute_effect_teardown(effect);
var parent = effect.parent;
// If the parent doesn't have any children, then skip this work altogether
if (parent !== null && parent.first !== null) {
unlink_effect(effect);
}
if (DEV) {
effect.component_function = null;
}
// `first` and `child` are nulled out in destroy_effect_children
effect.next =
effect.prev =
effect.teardown =
effect.ctx =
effect.deps =
effect.parent =
effect.fn =
effect.nodes_start =
effect.nodes_end =
null;
}
/**
* Detach an effect from the effect tree, freeing up memory and
* reducing the amount of work that happens on subsequent traversals
* @param {Effect} effect
*/
export function unlink_effect(effect) {
var parent = effect.parent;
var prev = effect.prev;
var next = effect.next;
if (prev !== null) prev.next = next;
if (next !== null) next.prev = prev;
if (parent !== null) {
if (parent.first === effect) parent.first = next;
if (parent.last === effect) parent.last = prev;
}
}
/**
* When a block effect is removed, we don't immediately destroy it or yank it
* out of the DOM, because it might have transitions. Instead, we 'pause' it.
* It stays around (in memory, and in the DOM) until outro transitions have
* completed, and if the state change is reversed then we _resume_ it.
* A paused effect does not update, and the DOM subtree becomes inert.
* @param {Effect} effect
* @param {() => void} [callback]
*/
export function pause_effect(effect, callback) {
/** @type {TransitionManager[]} */
var transitions = [];
pause_children(effect, transitions, true);
run_out_transitions(transitions, () => {
destroy_effect(effect);
if (callback) callback();
});
}
/**
* @param {TransitionManager[]} transitions
* @param {() => void} fn
*/
export function run_out_transitions(transitions, fn) {
var remaining = transitions.length;
if (remaining > 0) {
var check = () => --remaining || fn();
for (var transition of transitions) {
transition.out(check);
}
} else {
fn();
}
}
/**
* @param {Effect} effect
* @param {TransitionManager[]} transitions
* @param {boolean} local
*/
export function pause_children(effect, transitions, local) {
if ((effect.f & INERT) !== 0) return;
effect.f ^= INERT;
if (effect.transitions !== null) {
for (const transition of effect.transitions) {
if (transition.is_global || local) {
transitions.push(transition);
}
}
}
var child = effect.first;
while (child !== null) {
var sibling = child.next;
var transparent = (child.f & EFFECT_TRANSPARENT) !== 0 || (child.f & BRANCH_EFFECT) !== 0;
// TODO we don't need to call pause_children recursively with a linked list in place
// it's slightly more involved though as we have to account for `transparent` changing
// through the tree.
pause_children(child, transitions, transparent ? local : false);
child = sibling;
}
}
/**
* The opposite of `pause_effect`. We call this if (for example)
* `x` becomes falsy then truthy: `{#if x}...{/if}`
* @param {Effect} effect
*/
export function resume_effect(effect) {
resume_children(effect, true);
}
/**
* @param {Effect} effect
* @param {boolean} local
*/
function resume_children(effect, local) {
if ((effect.f & INERT) === 0) return;
effect.f ^= INERT;
// If a dependency of this effect changed while it was paused,
// apply the change now
if (check_dirtiness(effect)) {
update_effect(effect);
}
var child = effect.first;
while (child !== null) {
var sibling = child.next;
var transparent = (child.f & EFFECT_TRANSPARENT) !== 0 || (child.f & BRANCH_EFFECT) !== 0;
// TODO we don't need to call resume_children recursively with a linked list in place
// it's slightly more involved though as we have to account for `transparent` changing
// through the tree.
resume_children(child, transparent ? local : false);
child = sibling;
}
if (effect.transitions !== null) {
for (const transition of effect.transitions) {
if (transition.is_global || local) {
transition.in();
}
}
}
}
|