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

100% Statements 55/55
100% Branches 19/19
100% Functions 6/6
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 2608x 2608x 2x 2x 2x 2x 2x 2x 6212x 9990x 9990x 9990x 9211x 9990x 843x 843x 843x 756x 756x 756x 8x 8x 756x 756x 843x 843x 85x 15x 15x 70x 70x 843x 843x 101x 101x 101x 101x 101x 101x 843x 843x 9990x 6212x  
/** @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: binding.declaration_kind === 'var' ? (node) => b.call('$.safe_get', node) : get_value,
				assign: (node, value) => {
					let call = b.call('$.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)
					);
				}
			};
		}
	}
}