Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 744x 343x 343x 744x 744x 744x 744x 744x 744x 744x 744x 744x 744x 744x 744x 744x 744x 744x 1603x 1385x 1385x 1385x 1385x 1603x 343x 343x 343x 1x 1x 1x 1x 1x 1x 1x 1x 343x 1385x 1603x 701x 50x 701x 651x 651x 700x 701x 48x 44x 48x 48x 1603x 684x 2x 684x 178x 178x 684x 684x 303x 235x 303x 303x 684x 1384x 1603x 1x 1x 1x 744x 744x 744x 343x 343x 744x | /** @import { Effect, TemplateNode } from '#client' */
import { EFFECT_TRANSPARENT } from '../../constants.js';
import {
hydrate_next,
hydrate_node,
hydrating,
remove_nodes,
set_hydrate_node,
set_hydrating
} from '../hydration.js';
import { block, branch, pause_effect, resume_effect } from '../../reactivity/effects.js';
import { HYDRATION_START_ELSE } from '../../../../constants.js';
/**
* @param {TemplateNode} node
* @param {() => boolean} get_condition
* @param {(anchor: Node) => void} consequent_fn
* @param {null | ((anchor: Node) => void)} [alternate_fn]
* @param {boolean} [elseif] True if this is an `{:else if ...}` block rather than an `{#if ...}`, as that affects which transitions are considered 'local'
* @returns {void}
*/
export function if_block(node, get_condition, consequent_fn, alternate_fn = null, elseif = false) {
if (hydrating) {
hydrate_next();
}
var anchor = node;
/** @type {Effect | null} */
var consequent_effect = null;
/** @type {Effect | null} */
var alternate_effect = null;
/** @type {boolean | null} */
var condition = null;
var flags = elseif ? EFFECT_TRANSPARENT : 0;
block(() => {
if (condition === (condition = !!get_condition())) return;
/** Whether or not there was a hydration mismatch. Needs to be a `let` or else it isn't treeshaken out */
let mismatch = false;
if (hydrating) {
const is_else = /** @type {Comment} */ (anchor).data === HYDRATION_START_ELSE;
if (condition === is_else) {
// Hydration mismatch: remove everything inside the anchor and start fresh.
// This could happen with `{#if browser}...{/if}`, for example
anchor = remove_nodes();
set_hydrate_node(anchor);
set_hydrating(false);
mismatch = true;
}
}
if (condition) {
if (consequent_effect) {
resume_effect(consequent_effect);
} else {
consequent_effect = branch(() => consequent_fn(anchor));
}
if (alternate_effect) {
pause_effect(alternate_effect, () => {
alternate_effect = null;
});
}
} else {
if (alternate_effect) {
resume_effect(alternate_effect);
} else if (alternate_fn) {
alternate_effect = branch(() => alternate_fn(anchor));
}
if (consequent_effect) {
pause_effect(consequent_effect, () => {
consequent_effect = null;
});
}
}
if (mismatch) {
// continue in hydration mode
set_hydrating(true);
}
}, flags);
if (hydrating) {
anchor = hydrate_node;
}
}
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