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import Node from './shared/Node.js';
import Attribute from './Attribute.js';
import map_children from './shared/map_children.js';
import Binding from './Binding.js';
import EventHandler from './EventHandler.js';
import Expression from './shared/Expression.js';
import compiler_errors from '../compiler_errors.js';
import { regex_only_whitespaces } from '../../utils/patterns.js';
/** @extends Node<'InlineComponent'> */
export default class InlineComponent extends Node {
/** @type {string} */
name;
/** @type {import('./shared/Expression.js').default} */
expression;
/** @type {import('./Binding.js').default[]} */
bindings = [];
/** @type {import('./EventHandler.js').default[]} */
handlers = [];
/** @type {import('./Attribute.js').default[]} */
css_custom_properties = [];
/** @type {import('./interfaces.js').INode[]} */
children;
/** @type {import('./shared/TemplateScope.js').default} */
scope;
/** @type {string} */
namespace;
/** @type {Attribute[]} */
let_attributes;
/**
* @param {import('../Component.js').default} component
* @param {import('./shared/Node.js').default} parent
* @param {import('./shared/TemplateScope.js').default} scope
* @param {import('../../interfaces.js').TemplateNode} info
*/
constructor(component, parent, scope, info) {
super(component, parent, scope, info);
this.cannot_use_innerhtml();
this.not_static_content();
if (info.name !== 'svelte:component' && info.name !== 'svelte:self') {
const name = info.name.split('.')[0]; // accommodate namespaces
component.warn_if_undefined(name, info, scope);
component.add_reference(/** @type {any} */ (this), name);
}
this.name = info.name;
this.namespace = get_namespace(parent, component.namespace);
this.expression =
this.name === 'svelte:component'
? new Expression(component, this, scope, info.expression)
: null;
const let_attributes = (this.let_attributes = []);
info.attributes.forEach(
/** @param {import('../../interfaces.js').BaseDirective | import('../../interfaces.js').Attribute | import('../../interfaces.js').SpreadAttribute} node */ (
node
) => {
/* eslint-disable no-fallthrough */
switch (node.type) {
case 'Action':
return component.error(node, compiler_errors.invalid_action);
case 'Attribute':
if (node.name.startsWith('--')) {
this.css_custom_properties.push(new Attribute(component, this, scope, node));
break;
}
// fallthrough
case 'Spread':
this.attributes.push(new Attribute(component, this, scope, node));
break;
case 'Binding':
this.bindings.push(new Binding(component, this, scope, node));
break;
case 'Class':
return component.error(node, compiler_errors.invalid_class);
case 'EventHandler':
this.handlers.push(new EventHandler(component, this, scope, node));
break;
case 'Let':
let_attributes.push(node);
break;
case 'Transition':
return component.error(node, compiler_errors.invalid_transition);
case 'StyleDirective':
return component.error(node, compiler_errors.invalid_component_style_directive);
case 'Animation':
return component.error(node, compiler_errors.invalid_animation);
default:
throw new Error(`Not implemented: ${node.type}`);
}
/* eslint-enable no-fallthrough */
}
);
this.scope = scope;
this.handlers.forEach((handler) => {
handler.modifiers.forEach((modifier) => {
if (modifier !== 'once') {
return component.error(handler, compiler_errors.invalid_event_modifier_component);
}
});
});
const children = [];
for (let i = info.children.length - 1; i >= 0; i--) {
const child = info.children[i];
if (child.type === 'SlotTemplate') {
children.push(child);
info.children.splice(i, 1);
} else if (
(child.type === 'Element' || child.type === 'InlineComponent' || child.type === 'Slot') &&
child.attributes.find((attribute) => attribute.name === 'slot')
) {
const slot_template = {
start: child.start,
end: child.end,
type: 'SlotTemplate',
name: 'svelte:fragment',
attributes: [],
children: [child]
};
// transfer attributes
for (let i = child.attributes.length - 1; i >= 0; i--) {
const attribute = child.attributes[i];
if (attribute.type === 'Let') {
slot_template.attributes.push(attribute);
child.attributes.splice(i, 1);
} else if (attribute.type === 'Attribute' && attribute.name === 'slot') {
slot_template.attributes.push(attribute);
}
}
// transfer const
for (let i = child.children.length - 1; i >= 0; i--) {
const child_child = child.children[i];
if (child_child.type === 'ConstTag') {
slot_template.children.push(child_child);
child.children.splice(i, 1);
}
}
children.push(slot_template);
info.children.splice(i, 1);
} else if (child.type === 'Comment' && children.length > 0) {
children[children.length - 1].children.unshift(child);
}
}
if (info.children.some((node) => not_whitespace_text(node))) {
children.push({
start: info.start,
end: info.end,
type: 'SlotTemplate',
name: 'svelte:fragment',
attributes: [],
children: info.children
});
}
if (let_attributes.length) {
// copy let: attribute from <Component /> to <svelte:fragment slot="default" />
// as they are for `slot="default"` only
children.forEach((child) => {
const slot = child.attributes.find((attribute) => attribute.name === 'slot');
if (!slot || slot.value[0].data === 'default') {
child.attributes.push(...let_attributes);
}
});
}
this.children = map_children(component, this, this.scope, children);
}
get slot_template_name() {
return /** @type {string} */ (
this.attributes.find((attribute) => attribute.name === 'slot').get_static_value()
);
}
}
/** @param {any} node */
function not_whitespace_text(node) {
return !(node.type === 'Text' && regex_only_whitespaces.test(node.data));
}
/**
* @param {import('./shared/Node.js').default} parent
* @param {string} explicit_namespace
*/
function get_namespace(parent, explicit_namespace) {
const parent_element = parent.find_nearest(/^Element/);
if (!parent_element) {
return explicit_namespace;
}
return parent_element.namespace;
}
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