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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 83x 83x 83x 83x 83x 83x 83x 83x 83x 71x 71x 71x 71x 71x 71x 71x 71x 71x 71x 71x 83x 83x 48x 48x 48x 48x 48x 48x 48x 48x 48x 48x 48x 83x 83x 83x 83x 83x 83x 83x 83x 83x 83x 83x 83x 83x 83x 83x 83x | /** @import { BlockStatement, Expression, Pattern, Statement } from 'estree' */
/** @import { AST } from '#compiler' */
/** @import { ComponentContext } from '../types' */
import * as b from '../../../../utils/builders.js';
import { create_derived_block_argument } from '../utils.js';
/**
* @param {AST.AwaitBlock} node
* @param {ComponentContext} context
*/
export function AwaitBlock(node, context) {
context.state.template.push('<!>');
// Visit {#await <expression>} first to ensure that scopes are in the correct order
const expression = b.thunk(/** @type {Expression} */ (context.visit(node.expression)));
let then_block;
let catch_block;
if (node.then) {
const argument = node.value && create_derived_block_argument(node.value, context);
/** @type {Pattern[]} */
const args = [b.id('$$anchor')];
if (argument) args.push(argument.id);
const declarations = argument?.declarations ?? [];
const block = /** @type {BlockStatement} */ (context.visit(node.then));
then_block = b.arrow(args, b.block([...declarations, ...block.body]));
}
if (node.catch) {
const argument = node.error && create_derived_block_argument(node.error, context);
/** @type {Pattern[]} */
const args = [b.id('$$anchor')];
if (argument) args.push(argument.id);
const declarations = argument?.declarations ?? [];
const block = /** @type {BlockStatement} */ (context.visit(node.catch));
catch_block = b.arrow(args, b.block([...declarations, ...block.body]));
}
context.state.init.push(
b.stmt(
b.call(
'$.await',
context.state.node,
expression,
node.pending
? b.arrow([b.id('$$anchor')], /** @type {BlockStatement} */ (context.visit(node.pending)))
: b.literal(null),
then_block,
catch_block
)
)
);
}
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