Function peekUnicodeEscape

test/fixtures/snapshot/typescript.js:11291–11300

()

        // Current character is known to be a backslash. Check for Unicode escape of the form '\uXXXX'
        // and return code point value if valid Unicode escape is found. Otherwise return -1.
        function peekUnicodeEscape() {
            if (pos + 5 < end && text.charCodeAt(pos + 1) === 117 /* CharacterCodes.u */) {
                var start_1 = pos;
                pos += 2;
                var value = scanExactNumberOfHexDigits(4, /*canHaveSeparators*/ false);
                pos = start_1;
                return value;
            }
            return -1;
        }
        function peekExtendedUnicodeEscape() {
            if (languageVersion >= 2 /* ScriptTarget.ES2015 */ && codePointAt(text, pos + 1) === 117 /* CharacterCodes.u */ && codePointAt(text, pos + 2) === 123 /* CharacterCodes.openBrace */) {
                var start_2 = pos;