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feat: $if (int(typeof(val).idx) >> 16) & 0xff == 0 {
Describe the feature
Every info there is knowed at compile time there are not why it not be allowed
Use Case
json2 encode/decode
struct Encoder {}
fn main() {
mut e := &Encoder{}
val := ''
e.encode_value(&val)
}
pub fn (e &Encoder) encode_value[T](val T) {
mut nr_muls := 0
$if (int(typeof(val).idx) >> 16) & 0xff == 0 {
} $else {
nr_muls = (int(typeof(val).idx) >> 16) & 0xff
}
}
Proposed Solution
No response
Other Information
No response
Acknowledgements
- [ ] I may be able to implement this feature request
- [ ] This feature might incur a breaking change
Version used
V 0.4.3 bf7b29a
Environment details (OS name and version, etc.)
Ubuntu
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Does this not work?
This give me a check error
vlib/x/json2/encoder.v:41:42: error: invalid `$if` condition: v.ast.InfixExpr1
39 | // encode_value encodes a value to the specific buffer.
40 | pub fn (e &Encoder) encode_value[T](val T, mut buf []u8) ! {
41 | $if (int(typeof(val).idx) >> 16) & 0xff == 0 {
| ~~
42 |
43 | }
It compiles correctly for me.
I am confused now
my v doctor send me yours
V full version: V 0.4.3 e2334d8.5a32898
OS: linux, Ubuntu 23.04
Processor: 16 cpus, 64bit, little endian, AMD Ryzen 7 5800H with Radeon Graphics
getwd: /home/hitalo/Documents/v
vexe: /home/hitalo/Documents/v/v
vexe mtime: 2024-01-05 13:35:57
vroot: OK, value: /home/hitalo/Documents/v
VMODULES: OK, value: /home/hitalo/.vmodules
VTMP: OK, value: /tmp/v_1000
Git version: git version 2.39.2
Git vroot status: weekly.2024.01.test2-9-g5a32898d-dirty
.git/config present: true
CC version: cc (Ubuntu 12.3.0-1ubuntu1~23.04) 12.3.0
thirdparty/tcc status: thirdparty-linux-amd64 12f392c3
You ain't on the latest commit
V full version: V 0.4.3 e2334d8.c4541cb
OS: linux, Pop!_OS 22.04 LTS
Processor: 12 cpus, 64bit, little endian, AMD Ryzen 5 5600H with Radeon Graphics
getwd: /home/delta
vexe: /home/delta/Documents/git/v_dev/v
vexe mtime: 2024-01-05 12:53:03
vroot: OK, value: /home/delta/Documents/git/v_dev
VMODULES: OK, value: /home/delta/.vmodules
VTMP: OK, value: /tmp/v_1000
Git version: git version 2.34.1
Git vroot status: weekly.2023.52-83-gc4541cb9-dirty
.git/config present: true
CC version: cc (Ubuntu 11.4.0-1ubuntu1~22.04) 11.4.0
thirdparty/tcc status: thirdparty-linux-amd64 12f392c3
The playground is fine for testing small things, but you need to v up and test locally.
If it works locally, but fails in the playground, it's a playground problem, not a V problem.
a.v:12:6: warning: unused variable: `nr_muls`
10 |
11 | pub fn (e &Encoder) encode_value[T](val T) {
12 | mut nr_muls := 0
| ~~~~~~~
13 | $if (int(typeof(val).idx) >> 16) & 0xff == 0 {
14 | } $else {
a.v:13:42: error: invalid `$if` condition: v.ast.InfixExpr1
11 | pub fn (e &Encoder) encode_value[T](val T) {
12 | mut nr_muls := 0
13 | $if (int(typeof(val).idx) >> 16) & 0xff == 0 {
| ~~
14 | } $else {
15 | nr_muls = (int(typeof(val).idx) >> 16) & 0xff
commit e2334d8b62ab49b338e1f1f58973fbd3e575eebf MacOS
