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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 4544x 4544x 4544x 1x 1x 4542x 4542x 4542x 4542x 4542x 4542x 4542x 4542x 4542x 4542x 4544x 4542x 4542x 4542x 4542x 4542x 4542x 4542x 4544x 163x 163x 163x 2x 2x 163x 163x 78x 78x 78x 78x 163x 163x 7x 7x 7x 7x 7x 1x 1x 6x 6x 6x 163x 4541x 4541x 4541x 4541x 4541x 4541x 4541x 4541x 4541x 4541x 4541x 4541x | /** @import { Program } from 'estree' */
/** @import { AST, Directive } from '#compiler' */
/** @import { Parser } from '../index.js' */
import * as acorn from '../acorn.js';
import { regex_not_newline_characters } from '../../patterns.js';
import * as e from '../../../errors.js';
import * as w from '../../../warnings.js';
import { is_text_attribute } from '../../../utils/ast.js';
const regex_closing_script_tag = /<\/script\s*>/;
const regex_starts_with_closing_script_tag = /^<\/script\s*>/;
const RESERVED_ATTRIBUTES = ['server', 'client', 'worker', 'test', 'default'];
const ALLOWED_ATTRIBUTES = ['context', 'generics', 'lang', 'module'];
/**
* @param {Parser} parser
* @param {number} start
* @param {Array<AST.Attribute | AST.SpreadAttribute | Directive>} attributes
* @returns {AST.Script}
*/
export function read_script(parser, start, attributes) {
const script_start = parser.index;
const data = parser.read_until(regex_closing_script_tag);
if (parser.index >= parser.template.length) {
e.element_unclosed(parser.template.length, 'script');
}
const source =
parser.template.slice(0, script_start).replace(regex_not_newline_characters, ' ') + data;
parser.read(regex_starts_with_closing_script_tag);
/** @type {Program} */
let ast;
try {
ast = acorn.parse(source, parser.ts);
} catch (err) {
parser.acorn_error(err);
}
// TODO is this necessary?
ast.start = script_start;
/** @type {'default' | 'module'} */
let context = 'default';
for (const attribute of /** @type {AST.Attribute[]} */ (attributes)) {
if (RESERVED_ATTRIBUTES.includes(attribute.name)) {
e.script_reserved_attribute(attribute, attribute.name);
}
if (!ALLOWED_ATTRIBUTES.includes(attribute.name)) {
w.script_unknown_attribute(attribute);
}
if (attribute.name === 'module') {
if (attribute.value !== true) {
// Deliberately a generic code to future-proof for potential other attributes
e.script_invalid_attribute_value(attribute, attribute.name);
}
context = 'module';
}
if (attribute.name === 'context') {
if (attribute.value === true || !is_text_attribute(attribute)) {
e.script_invalid_context(attribute);
}
const value = attribute.value[0].data;
if (value !== 'module') {
e.script_invalid_context(attribute);
}
context = 'module';
}
}
return {
type: 'Script',
start,
end: parser.index,
context,
content: ast,
parent: null,
// @ts-ignore
attributes
};
}
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