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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 1x 1x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 488x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 27x 488x 461x 461x 488x | /** @import { BlockStatement, Expression, Pattern, Statement } from 'estree' */
/** @import { AST } from '#compiler' */
/** @import { ComponentContext } from '../types.js' */
import { BLOCK_OPEN_ELSE } from '../../../../../internal/server/hydration.js';
import * as b from '../../../../utils/builders.js';
import { block_close, block_open } from './shared/utils.js';
/**
* @param {AST.EachBlock} node
* @param {ComponentContext} context
*/
export function EachBlock(node, context) {
const state = context.state;
const each_node_meta = node.metadata;
const collection = /** @type {Expression} */ (context.visit(node.expression));
const index =
each_node_meta.contains_group_binding || !node.index ? each_node_meta.index : b.id(node.index);
const array_id = state.scope.root.unique('each_array');
state.init.push(b.const(array_id, b.call('$.ensure_array_like', collection)));
/** @type {Statement[]} */
const each = [b.let(/** @type {Pattern} */ (node.context), b.member(array_id, index, true))];
if (index.name !== node.index && node.index != null) {
each.push(b.let(node.index, index));
}
each.push(.../** @type {BlockStatement} */ (context.visit(node.body)).body);
const for_loop = b.for(
b.declaration('let', [
b.declarator(index, b.literal(0)),
b.declarator('$$length', b.member(array_id, 'length'))
]),
b.binary('<', index, b.id('$$length')),
b.update('++', index, false),
b.block(each)
);
if (node.fallback) {
const open = b.stmt(b.assignment('+=', b.id('$$payload.out'), block_open));
const fallback = /** @type {BlockStatement} */ (context.visit(node.fallback));
fallback.body.unshift(
b.stmt(b.assignment('+=', b.id('$$payload.out'), b.literal(BLOCK_OPEN_ELSE)))
);
state.template.push(
b.if(
b.binary('!==', b.member(array_id, 'length'), b.literal(0)),
b.block([open, for_loop]),
fallback
),
block_close
);
} else {
state.template.push(block_open, for_loop, block_close);
}
}
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