When is it OK for assignment to be implicit but construction explicit?
Howard and I both think "not usually, but sometimes", but have no hard rules.
eg. zoned_time = local_time sets the local-time portion of a zoned_time. Is that OK?
StringId isn't convertible from string (to avoid accidental passing a string when you want an ID)
but StringId = string seems like there is intent, and it is not accidental.
Whereas milliseconds = int is probably too dangerous.
For units like milliseconds, the int represents a measure in some unit - the question is "is it the right unit"
For StringId = string, there is only one meaning - set the internal string. Could the string be in the wrong "unit"? Less likely?
zoned_time = local_time still seems scary to me - there are two (equally) valid meanings - just set the time portion of zoned_time, or convert from that time in the local time zone into the simultaneous time in the zoned_time's time zone.
When is it OK for assignment to be implicit but construction explicit?
Howard and I both think "not usually, but sometimes", but have no hard rules.
eg. zoned_time = local_time sets the local-time portion of a zoned_time. Is that OK?
StringId isn't convertible from string (to avoid accidental passing a string when you want an ID)
but StringId = string seems like there is intent, and it is not accidental.
Whereas milliseconds = int is probably too dangerous.
For units like milliseconds, the int represents a measure in some unit - the question is "is it the right unit"
For StringId = string, there is only one meaning - set the internal string. Could the string be in the wrong "unit"? Less likely?
zoned_time = local_time still seems scary to me - there are two (equally) valid meanings - just set the time portion of zoned_time, or convert from that time in the local time zone into the simultaneous time in the zoned_time's time zone.