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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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 4557x 4557x 4557x 1x 1x 4555x 4555x 4555x 4555x 4555x 4555x 4555x 4555x 4555x 4555x 4557x 4555x 4555x 4555x 4555x 4555x 4555x 4555x 4557x 166x 166x 166x 2x 2x 166x 166x 78x 78x 78x 78x 166x 166x 7x 7x 7x 7x 7x 1x 1x 6x 6x 6x 166x 4554x 4554x 4554x 4554x 4554x 4554x 4554x 4554x 4554x 4554x 4554x 4554x | /** @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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