[orm]v fmt removes commented code lines that contain valid syntax

[Jengro777]

Describe the feature

Comments in orm expressions will be removed by vfmt

    update_expr := {
        //name == name_dyn  
    }

Use Case

#!/usr/bin/env -S v run

import db.sqlite
import time

@[table: 'sys_users']
struct User {
pub:
	id         string     @[primary; sql_type: 'VARCHAR(255)'; unique]
	name       ?string    @[sql_type: 'VARCHAR(255)']
	nickname   ?string    @[sql_type: 'VARCHAR(255)']
	mobile     ?string    @[sql_type: 'VARCHAR(255)']
	email      ?string    @[sql_type: 'VARCHAR(255)']
	created_at time.Time  @[omitempty; sql_type: 'TIMESTAMP']
	updated_at ?time.Time @[default: new; omitempty; sql_type: 'TIMESTAMP']
}

// 查询用户数据
fn query_users(mut db sqlite.DB) ![]User {
	users := sql db {
		select from User
	}!
	return users
}

fn main() {
	mut db := init_database()!
	defer { db.close() or {} }

	insert_users(mut db) or { panic(err) }

	req := UserReq{
		name:     'Jengro'
		nickname: 'Woo'
		mobile:   '535770088'
		email:    'admin@admin.com'
	}
	dynamic_update_users(mut db, req) or { panic(err) }

	users := query_users(mut db) or { panic(err) }
	dump(users)
}

fn init_database() !&sqlite.DB {
	mut db := sqlite.connect(':memory:')!
	sql db {
		create table User
	}!
	return &db
}

fn insert_users(mut db sqlite.DB) ! {
	users1 := User{
		id:         '1'
		name:       'Jengro'
		nickname:   'Woo'
		mobile:     '535770088'
		email:      'admin@admin.com'
		created_at: time.now()
		updated_at: time.now()
	}

	users2 := User{
		id:         '2'
		name:       'Dev'
		nickname:   'T'
		mobile:     '15020579521'
		email:      'dev@dev.com'
		created_at: time.now()
		updated_at: time.now()
	}

	sql db {
		insert users1 into User
		insert users2 into User
	}!
}

struct UserReq {
	name     ?string @[json: 'name']
	nickname ?string @[json: 'nickname']
	mobile   ?string @[json: 'mobile']
	email    ?string @[json: 'email']
}

fn dynamic_update_users(mut db sqlite.DB, req UserReq) ! {
	name_dyn := 'Avey'
	update_expr := {
				if m := req.mobile { mobile == m },
				//name == name_dyn
		}

	sql db {
		dynamic update User set update_expr where id == '2'
	}!
}

v fmt -w test.v

Proposed Solution

Annotated code should be retained, even if it contains valid V syntax. The formatting tool should:
Keep all comments, including those containing code
Do not delete any comment lines

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

Version used

V 0.5.1 f34a22f

Environment details (OS name and version, etc.)

V full version	V 0.5.1 8ef799c.f34a22f
OS	linux, Deepin 25
Processor	20 cpus, 64bit, little endian, 13th Gen Intel(R) Core(TM) i5-13500
Memory	12.75GB/31.03GB
V executable	/home/Jengro/opt/v/v
V last modified time	2026-04-24 03:19:44
V home dir	OK, value: /home/Jengro/opt/v
VMODULES	OK, value: /home/Jengro/.vmodules
VTMP	OK, value: /tmp/v_1000
Current working dir	OK, value: /home/Jengro
Git version	git version 2.51.0
V git status	0.5.1-1334-gf34a22f8
.git/config present	true
cc version	cc (Deepin 12.3.0-17deepin17) 12.3.0
gcc version	gcc (Deepin 12.3.0-17deepin17) 12.3.0
clang version	Deepin clang version 17.0.6 (5deepin7)
tcc version	tcc version 0.9.28rc 2025-02-13 HEAD@f8bd136d (x86_64 Linux)
tcc git status	thirdparty-linux-amd64 696c1d84
emcc version	N/A
glibc version	ldd (Debian GLIBC 2.38-6deepin21) 2.38

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