All files / src/compiler/phases/2-analyze/visitors/shared attribute.js

97.65% Statements 125/128
96.36% Branches 53/55
100% Functions 3/3
97.56% Lines 120/123

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 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 1242x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 5386x 5386x 5386x 5386x 4x 5386x 2x 2x 5386x 2x 2x 2x 2x 2x 2x 1176x 1176x 1176x 1176x 8x 8x 8x 8x 1176x 4x 4x 1176x 1176x 1162x 1162x 14x 1176x 1176x 1176x 2x 2x 1176x 2x 2x 2x 2x 2x 2x 2x 225x 225x 225x 225x 2x     2x 2x 223x 223x 225x 719x 719x 719x 465x 465x 465x 465x 465x 719x 220x 220x 719x 223x 223x 220x 1x 1x 219x 219x 220x 220x 9x 220x 210x 6x 6x 204x 204x 204x 210x 5x 5x 199x 199x 199x 210x 1x 4x 2x 2x 2x 4x 2x 1x 1x 2x 1x 1x 1x   210x 225x 1x 1x 225x  
/** @import { AST, ElementLike } from '#compiler' */
/** @import { Context } from '../../types' */
import * as e from '../../../../errors.js';
import { is_text_attribute } from '../../../../utils/ast.js';
import * as w from '../../../../warnings.js';
import { is_custom_element_node } from '../../../nodes.js';
import { regex_only_whitespaces } from '../../../patterns.js';
 
/**
 * @param {AST.Attribute} attribute
 */
export function validate_attribute_name(attribute) {
	if (
		attribute.name.includes(':') &&
		!attribute.name.startsWith('xmlns:') &&
		!attribute.name.startsWith('xlink:') &&
		!attribute.name.startsWith('xml:')
	) {
		w.attribute_illegal_colon(attribute);
	}
}
 
/**
 * @param {AST.Attribute} attribute
 * @param {ElementLike} parent
 */
export function validate_attribute(attribute, parent) {
	if (
		Array.isArray(attribute.value) &&
		attribute.value.length === 1 &&
		attribute.value[0].type === 'ExpressionTag' &&
		(parent.type === 'Component' ||
			parent.type === 'SvelteComponent' ||
			parent.type === 'SvelteSelf' ||
			(parent.type === 'RegularElement' && is_custom_element_node(parent)))
	) {
		w.attribute_quoted(attribute);
	}
 
	if (attribute.value === true || !Array.isArray(attribute.value) || attribute.value.length === 1) {
		return;
	}
 
	const is_quoted = attribute.value.at(-1)?.end !== attribute.end;
 
	if (!is_quoted) {
		e.attribute_unquoted_sequence(attribute);
	}
}
 
/**
 * @param {Context} context
 * @param {AST.Attribute} attribute
 * @param {boolean} is_component
 */
export function validate_slot_attribute(context, attribute, is_component = false) {
	const parent = context.path.at(-2);
	let owner = undefined;
 
	if (parent?.type === 'SnippetBlock') {
		if (!is_text_attribute(attribute)) {
			e.slot_attribute_invalid(attribute);
		}
		return;
	}
 
	let i = context.path.length;
	while (i--) {
		const ancestor = context.path[i];
		if (
			!owner &&
			(ancestor.type === 'Component' ||
				ancestor.type === 'SvelteComponent' ||
				ancestor.type === 'SvelteSelf' ||
				ancestor.type === 'SvelteElement' ||
				(ancestor.type === 'RegularElement' && is_custom_element_node(ancestor)))
		) {
			owner = ancestor;
		}
	}
 
	if (owner) {
		if (!is_text_attribute(attribute)) {
			e.slot_attribute_invalid(attribute);
		}
 
		if (
			owner.type === 'Component' ||
			owner.type === 'SvelteComponent' ||
			owner.type === 'SvelteSelf'
		) {
			if (owner !== parent) {
				e.slot_attribute_invalid_placement(attribute);
			}
 
			const name = attribute.value[0].data;
 
			if (context.state.component_slots.has(name)) {
				e.slot_attribute_duplicate(attribute, name, owner.name);
			}
 
			context.state.component_slots.add(name);
 
			if (name === 'default') {
				for (const node of owner.fragment.nodes) {
					if (node.type === 'Text' && regex_only_whitespaces.test(node.data)) {
						continue;
					}
 
					if (node.type === 'RegularElement' || node.type === 'SvelteFragment') {
						if (node.attributes.some((a) => a.type === 'Attribute' && a.name === 'slot')) {
							continue;
						}
					}
 
					e.slot_default_duplicate(node);
				}
			}
		}
	} else if (!is_component) {
		e.slot_attribute_invalid_placement(attribute);
	}
}