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import fuzzymatch from '../phases/1-parse/utils/fuzzymatch.js';
import * as w from '../warnings.js';
const regex_svelte_ignore = /^\s*svelte-ignore\s/;
/** @type {Record<string, string>} Map of legacy code -> new code */
const replacements = {
'non-top-level-reactive-declaration': 'reactive_declaration_invalid_placement',
'module-script-reactive-declaration': 'reactive_declaration_module_script',
'empty-block': 'block_empty',
'avoid-is': 'attribute_avoid_is',
'invalid-html-attribute': 'attribute_invalid_property_name',
'a11y-structure': 'a11y_figcaption_parent',
'illegal-attribute-character': 'attribute_illegal_colon',
'invalid-rest-eachblock-binding': 'bind_invalid_each_rest',
'unused-export-let': 'export_let_unused'
};
const codes = w.codes.concat(IGNORABLE_RUNTIME_WARNINGS);
/**
* @param {number} offset
* @param {string} text
* @param {boolean} runes
* @returns {string[]}
*/
export function extract_svelte_ignore(offset, text, runes) {
const match = regex_svelte_ignore.exec(text);
if (!match) return [];
let length = match[0].length;
offset += length;
/** @type {string[]} */
const ignores = [];
if (runes) {
// Warnings have to be separated by commas, everything after is interpreted as prose
for (const match of text.slice(length).matchAll(/([\w$-]+)(,)?/gm)) {
const code = match[1];
if (codes.includes(code)) {
ignores.push(code);
} else {
const replacement = replacements[code] ?? code.replace(/-/g, '_');
// The type cast is for some reason necessary to pass the type check in CI
const start = offset + /** @type {number} */ (match.index);
const end = start + code.length;
if (codes.includes(replacement)) {
w.legacy_code({ start, end }, code, replacement);
} else {
const suggestion = fuzzymatch(code, codes);
w.unknown_code({ start, end }, code, suggestion);
}
}
if (!match[2]) {
break;
}
}
} else {
// Non-runes mode: lax parsing, backwards compat with old codes
for (const match of text.slice(length).matchAll(/[\w$-]+/gm)) {
const code = match[0];
ignores.push(code);
if (!codes.includes(code)) {
const replacement = replacements[code] ?? code.replace(/-/g, '_');
if (codes.includes(replacement)) {
ignores.push(replacement);
}
}
}
}
return ignores;
}
/**
* Replaces legacy svelte-ignore codes with new codes.
* @param {string} text
* @returns {string}
*/
export function migrate_svelte_ignore(text) {
const match = regex_svelte_ignore.exec(text);
if (!match) return text;
const length = match[0].length;
return (
text.substring(0, length) +
text.substring(length).replace(/\w+-\w+(-\w+)*/g, (code, _, idx) => {
let replacement = replacements[code] ?? code.replace(/-/g, '_');
if (/\w+-\w+/.test(text.substring(length + idx + code.length))) {
replacement += ',';
}
return replacement;
})
);
}
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