Function parseUnaryExpression

docs/app/js/sanddance-app.js:144251–144262

()

    return expr;
} // 11.4 Unary Operators
function parseUnaryExpression() {
    var token, expr;
    if (lookahead.type !== TokenPunctuator && lookahead.type !== TokenKeyword) expr = parsePostfixExpression();
    else if (match("++") || match("--")) throw new Error(DISABLED);
    else if (match("+") || match("-") || match("~") || match("!")) {
        token = lex();
        expr = parseUnaryExpression();
        expr = finishUnaryExpression(token.value, expr);
    } else if (matchKeyword("delete") || matchKeyword("void") || matchKeyword("typeof")) throw new Error(DISABLED);
    else expr = parsePostfixExpression();
    return expr;
}
function binaryPrecedence(token) {
    let prec = 0;
    if (token.type !== TokenPunctuator && token.type !== TokenKeyword) return 0;