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| 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 97 98 99 100 101 102 103 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 7x 1x 1x 7x 2x 2x 2x 2x 2x 2x 7x 7x 7x 7x 4x 7x 3x 3x 3x 3x 3x 7x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 8x 8x 2x 2x 2x 2x 2x 2x 6x 6x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 99x 95x 81x 81x 81x 4x 4x 4x 4x 4x 81x 95x 95x | import { untrack } from './runtime.js';
import { get_descriptor, is_array } from './utils.js';
/** regex of all html void element names */
const void_element_names =
/^(?:area|base|br|col|command|embed|hr|img|input|keygen|link|meta|param|source|track|wbr)$/;
/** @param {string} tag */
function is_void(tag) {
return void_element_names.test(tag) || tag.toLowerCase() === '!doctype';
}
/**
* @param {any} store
* @param {string} name
*/
export function validate_store(store, name) {
if (store != null && typeof store.subscribe !== 'function') {
throw new Error(`'${name}' is not a store with a 'subscribe' method`);
}
}
/**
* @param {() => any} component_fn
* @returns {any}
*/
export function validate_dynamic_component(component_fn) {
const error_message = 'this={...} of <svelte:component> should specify a Svelte component.';
try {
const instance = component_fn();
if (instance !== undefined && typeof instance !== 'object') {
throw new Error(error_message);
}
return instance;
} catch (err) {
const { message } = /** @type {Error} */ (err);
if (typeof message === 'string' && message.indexOf('is not a function') !== -1) {
throw new Error(error_message);
} else {
throw err;
}
}
}
/**
* @param {() => any} collection
* @param {(item: any, index: number) => string} key_fn
* @returns {void}
*/
export function validate_each_keys(collection, key_fn) {
const keys = new Map();
const maybe_array = untrack(() => collection());
const array = is_array(maybe_array)
? maybe_array
: maybe_array == null
? []
: Array.from(maybe_array);
const length = array.length;
for (let i = 0; i < length; i++) {
const key = key_fn(array[i], i);
if (keys.has(key)) {
throw new Error(
`Cannot have duplicate keys in a keyed each: Keys at index ${keys.get(
key
)} and ${i} with value '${array[i]}' are duplicates`
);
}
keys.set(key, i);
}
}
/**
* @param {number} timeout
* @returns {() => void}
* */
export function loop_guard(timeout) {
const start = Date.now();
return () => {
if (Date.now() - start > timeout) {
throw new Error('Infinite loop detected');
}
};
}
/**
* @param {Record<string, any>} $$props
* @param {string[]} bindable
*/
export function validate_prop_bindings($$props, bindable) {
for (const key in $$props) {
if (!bindable.includes(key)) {
var setter = get_descriptor($$props, key)?.set;
if (setter) {
throw new Error(
`Cannot use bind:${key} on this component because the property was not declared as bindable. ` +
`To mark a property as bindable, use the $bindable() rune like this: \`let { ${key} = $bindable() } = $props()\``
);
}
}
}
}
|