bool UnaryOpExpression::preCompute(CVarRef value, Variant &result) {
bool ret = true;
try {
g_context->setThrowAllErrors(true);
switch(m_op) {
case '!':
result = (!toBoolean(value)); break;
case '+':
result = value.unary_plus(); break;
case '-':
result = value.negate(); break;
case '~':
result = value.bitNot(); break;
case '@':
result = value; break;
case T_INT_CAST:
result = value.toInt64(); break;
case T_DOUBLE_CAST:
result = toDouble(value); break;
case T_STRING_CAST:
result = toString(value); break;
case T_BOOL_CAST:
result = toBoolean(value); break;
case T_EMPTY:
result = empty(value); break;
case T_ISSET:
result = isset(value); break;
case T_INC:
case T_DEC:
assert(false);
default:
ret = false;
break;
}
} catch (...) {
ret = false;
}
g_context->setThrowAllErrors(false);
return ret;
}
