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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 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 1555x 1555x 1555x 1604x 1604x 1604x 1604x 1604x 321x 1604x 4x 4x 1600x 1600x 1604x 76x 1604x 1x 1x 1599x 1604x 994x 225x 225x 225x 204x 204x 2x 2x 2x 2x 1x 2x 2x 204x 225x 992x 992x 992x 994x 23x 23x 994x 1595x 1604x 241x 241x 1604x 1546x 1546x 1546x 1546x 1546x 1555x 1555x 1555x 1555x 1594x 1594x 1545x 1545x 1545x 1545x 1545x 1545x 1545x 1555x 2017x 7x 7x 7x 2010x 2017x 2017x 2017x 2017x 2017x 1545x 1545x 1545x 1555x 1747x 1747x 1747x 1747x 1747x 1747x 1747x 1747x 1747x 1528x | /** @import { AST } from '#compiler' */ /** @import { Context } from '../../types' */ import * as e from '../../../../errors.js'; import { get_attribute_expression, is_expression_attribute } from '../../../../utils/ast.js'; import { determine_slot } from '../../../../utils/slot.js'; import { validate_attribute, validate_attribute_name, validate_slot_attribute } from './attribute.js'; import { mark_subtree_dynamic } from './fragment.js'; /** * @param {AST.Component | AST.SvelteComponent | AST.SvelteSelf} node * @param {Context} context */ export function visit_component(node, context) { mark_subtree_dynamic(context.path); for (const attribute of node.attributes) { if ( attribute.type !== 'Attribute' && attribute.type !== 'SpreadAttribute' && attribute.type !== 'LetDirective' && attribute.type !== 'OnDirective' && attribute.type !== 'BindDirective' ) { e.component_invalid_directive(attribute); } if ( attribute.type === 'OnDirective' && (attribute.modifiers.length > 1 || attribute.modifiers.some((m) => m !== 'once')) ) { e.event_handler_invalid_component_modifier(attribute); } if (attribute.type === 'Attribute') { if (context.state.analysis.runes) { validate_attribute(attribute, node); if (is_expression_attribute(attribute)) { const expression = get_attribute_expression(attribute); if (expression.type === 'SequenceExpression') { let i = /** @type {number} */ (expression.start); while (--i > 0) { const char = context.state.analysis.source[i]; if (char === '(') break; // parenthesized sequence expressions are ok if (char === '{') e.attribute_invalid_sequence_expression(expression); } } } } validate_attribute_name(attribute); if (attribute.name === 'slot') { validate_slot_attribute(context, attribute, true); } } if (attribute.type === 'BindDirective' && attribute.name !== 'this') { context.state.analysis.uses_component_bindings = true; } } // If the component has a slot attribute — `<Foo slot="whatever" .../>` — // then `let:` directives apply to other attributes, instead of just the // top-level contents of the component. Yes, this is very weird. const default_state = determine_slot(node) ? context.state : { ...context.state, scope: node.metadata.scopes.default }; for (const attribute of node.attributes) { context.visit(attribute, attribute.type === 'LetDirective' ? default_state : context.state); } /** @type {AST.Comment[]} */ let comments = []; /** @type {Record<string, AST.Fragment['nodes']>} */ const nodes = { default: [] }; for (const child of node.fragment.nodes) { if (child.type === 'Comment') { comments.push(child); continue; } const slot_name = determine_slot(child) ?? 'default'; (nodes[slot_name] ??= []).push(...comments, child); if (slot_name !== 'default') comments = []; } const component_slots = new Set(); for (const slot_name in nodes) { const state = { ...context.state, scope: node.metadata.scopes[slot_name], parent_element: null, component_slots }; context.visit({ ...node.fragment, nodes: nodes[slot_name] }, state); } } |