LibSQL: Implement converting float and tuple values to a boolean

Author: https://github.com/trflynn89
Commit: e13c96157c
Pull-request: https://github.com/SerenityOS/serenity/pull/12433
Reviewed-by: https://github.com/linusg ✅

Userland/Libraries/LibSQL/Value.cpp

@@ -728,6 +728,11 @@ Optional<int> FloatImpl::to_int() const
     return static_cast<int>(round(value()));
 }
 
+Optional<bool> FloatImpl::to_bool() const
+{
+    return fabs(value()) > NumericLimits<double>::epsilon();
+}
+
 Optional<double> FloatImpl::to_double() const
 {
     return value();
@@ -999,6 +1004,19 @@ int TupleImpl::compare(Value const& other) const
     return 0;
 }
 
+Optional<bool> TupleImpl::to_bool() const
+{
+    for (auto const& value : value()) {
+        auto as_bool = Value(value).to_bool();
+        if (!as_bool.has_value())
+            return {};
+        if (!as_bool.value())
+            return false;
+    }
+
+    return true;
+}
+
 void TupleImpl::serialize(Serializer& serializer) const
 {
     serializer.serialize<TupleDescriptor>(*m_descriptor);