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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 327x 327x 327x 327x 327x 327x 327x 327x 327x 327x 327x 102x 102x 102x 102x 102x 102x 326x 326x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 26x 326x 326x 326x | /** @import { BlockStatement, Expression } from 'estree' */
/** @import { Ast } from '#compiler' */
/** @import { ComponentContext } from '../types' */
import * as b from '../../../../utils/builders.js';
/**
* @param {Ast.IfBlock} node
* @param {ComponentContext} context
*/
export function IfBlock(node, context) {
context.state.template.push('<!>');
const consequent = /** @type {BlockStatement} */ (context.visit(node.consequent));
const args = [
context.state.node,
b.thunk(/** @type {Expression} */ (context.visit(node.test))),
b.arrow([b.id('$$anchor')], consequent)
];
if (node.alternate || node.elseif) {
args.push(
node.alternate
? b.arrow([b.id('$$anchor')], /** @type {BlockStatement} */ (context.visit(node.alternate)))
: b.literal(null)
);
}
if (node.elseif) {
// We treat this...
//
// {#if x}
// ...
// {:else}
// {#if y}
// <div transition:foo>...</div>
// {/if}
// {/if}
//
// ...slightly differently to this...
//
// {#if x}
// ...
// {:else if y}
// <div transition:foo>...</div>
// {/if}
//
// ...even though they're logically equivalent. In the first case, the
// transition will only play when `y` changes, but in the second it
// should play when `x` or `y` change — both are considered 'local'
args.push(b.literal(true));
}
context.state.init.push(b.stmt(b.call('$.if', ...args)));
}
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