All files / src/compiler/phases/3-transform/client/visitors/shared declarations.js

100% Statements 55/55
100% Branches 16/16
100% Functions 5/5
100% Lines 53/53

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 542x 2x 2x 2x 2x 2x 2x 2x 2x 2x 3217x 3217x 2x 2x 2x 2x 2x 2x 6057x 9203x 9203x 9203x 8454x 9203x 813x 813x 813x 741x 741x 741x 8x 8x 741x 741x 813x 813x 83x 13x 13x 70x 70x 813x 813x 100x 100x 100x 100x 100x 100x 813x 813x 9203x 6057x  
/** @import { Identifier } from 'estree' */
/** @import { ComponentContext, Context } from '../../types' */
import { is_state_source } from '../../utils.js';
import * as b from '../../../../../utils/builders.js';
 
/**
 * Turns `foo` into `$.get(foo)`
 * @param {Identifier} node
 */
export function get_value(node) {
	return b.call('$.get', node);
}
 
/**
 *
 * @param {Context | ComponentContext} context
 */
export function add_state_transformers(context) {
	for (const [name, binding] of context.state.scope.declarations) {
		if (
			is_state_source(binding, context.state.analysis) ||
			binding.kind === 'derived' ||
			binding.kind === 'legacy_reactive'
		) {
			context.state.transform[name] = {
				read: get_value,
				assign: (node, value) => {
					let call = b.call('$.set', node, value);
 
					if (context.state.scope.get(`$${node.name}`)?.kind === 'store_sub') {
						call = b.call('$.store_unsub', call, b.literal(`$${node.name}`), b.id('$$stores'));
					}
 
					return call;
				},
				mutate: (node, mutation) => {
					if (context.state.analysis.runes) {
						return mutation;
					}
 
					return b.call('$.mutate', node, mutation);
				},
				update: (node) => {
					return b.call(
						node.prefix ? '$.update_pre' : '$.update',
						node.argument,
						node.operator === '--' && b.literal(-1)
					);
				}
			};
		}
	}
}