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 3234x 3234x 2x 2x 2x 2x 2x 2x 6110x 9900x 9900x 9900x 9143x 9900x 821x 821x 821x 741x 741x 741x 8x 8x 741x 741x 821x 821x 85x 15x 15x 70x 70x 821x 821x 100x 100x 100x 100x 100x 100x 821x 821x 9900x 6110x  
/** @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)
					);
				}
			};
		}
	}
}