We are allowed to create structs time.Time

[brandonpille]

Describe the bug

It is possible to create time.Time objects which might introduce problems when using the object. For example the code below does not do what you want it to do:

now := time.now()
today := time.Time { year: now.year, month: now.month, day: now.day }
today_5am := today.add(time.hour*5)

You expect the object today_5am to be today 5 AM but it is actually 1970-01-01 05:00:00. That is because the unix property was not filed in while creating the object.
Suggestion: don't allow the construction of the object outside of the module

Expected Behavior

See description

Current Behavior

See description

Reproduction Steps

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Possible Solution

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Additional Information/Context

No response

V version

V 0.3.2

Environment details (OS name and version, etc.)

OS: linux, Ubuntu 22.04.1 LTS
Processor: 16 cpus, 64bit, little endian, 11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz
CC version: cc (Ubuntu 11.3.0-1ubuntu1~22.04) 11.3.0

getwd: /work/farmerbot
vmodules: /home/brandon/.vmodules
vroot: /work/v
vexe: /work/v/v
vexe mtime: 2023-01-18 13:03:15
is vroot writable: true
is vmodules writable: true
V full version: V 0.3.2 f0a252d.2c78078

Git version: git version 2.34.1
Git vroot status: weekly.2023.03-15-g2c780788 (152 commit(s) behind V master)
.git/config present: true
thirdparty/tcc status: thirdparty-linux-amd64 12f392c3

[JalonSolov]

Easily accomplished by adding the [required] attribute to the Time fields.

[medvednikov]

@JalonSolov there's [noinit] struct Time {} for that

[JalonSolov]

Or that. :-) Yes, that would be simpler - just prevent you from creating your own instance.

[paul-elesin]

I'll pick it up

[depperm]

#17162 dup

[visrut-at-incubyte]

We can add [noinit] before the struct, but it could introduce breaking changes and I can see there are some tests that are failing.

• If the user is intending the behavior like today:= time.Time { year: now.year, month: now.month, day: now.day }, they are assuming in variable today, hours are also being automatically set.
• We can implement this behavior but, I don't know how to run some operation after the user initiates the object, something like a constructor function where we can set value for hour