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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 4428x 4428x 4428x 1x 1x 4426x 4426x 4426x 4426x 4426x 4426x 4426x 4426x 4426x 4426x 4428x 4426x 4426x 4426x 4426x 4426x 4426x 4426x 4428x 149x 149x 149x 2x 2x 149x 149x 74x 74x 74x 74x 149x 149x 6x 6x 6x 6x 6x 1x 1x 5x 5x 5x 5x 5x 149x 4425x 4425x 4425x 4425x 4425x 4425x 4425x 4425x 4425x 4425x 4425x 4425x | /** @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);
}
w.script_context_deprecated(attribute);
context = 'module';
}
}
return {
type: 'Script',
start,
end: parser.index,
context,
content: ast,
parent: null,
// @ts-ignore
attributes
};
}
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