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 | 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 12101x 12101x 12101x 12101x 12101x 12101x 80x 80x 12099x 12099x 12101x 1x 1x 12099x 12101x 14x 14x 14x 14x 14x 14x 14x 14x 12099x 12099x 12099x 12099x 12101x 2x 2x 12101x | /** @import { Expression } from 'estree' */
/** @import { Parser } from '../index.js' */
import { parse_expression_at } from '../acorn.js';
import { regex_whitespace } from '../../patterns.js';
import * as e from '../../../errors.js';
/**
* @param {Parser} parser
* @returns {Expression}
*/
export default function read_expression(parser) {
try {
const node = parse_expression_at(parser.template, parser.ts, parser.index);
let num_parens = 0;
for (let i = parser.index; i < /** @type {number} */ (node.start); i += 1) {
if (parser.template[i] === '(') num_parens += 1;
}
let index = /** @type {number} */ (node.end);
if (node.trailingComments !== undefined && node.trailingComments.length > 0) {
index = node.trailingComments.at(-1).end;
}
while (num_parens > 0) {
const char = parser.template[index];
if (char === ')') {
num_parens -= 1;
} else if (!regex_whitespace.test(char)) {
e.expected_token(index, ')');
}
index += 1;
}
parser.index = index;
return /** @type {Expression} */ (node);
} catch (err) {
parser.acorn_error(err);
}
}
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