Printing struct with c alias map gives c compiler error: 'indent_struct' undeclared

[daansystems]

V doctor:

V full version: V 0.4.8 18eee34.1b812f6
OS: windows, Microsoft Windows 11 Pro v22631 64-bit
Processor: 24 cpus, 64bit, little endian, 

getwd: D:\vbug2
vexe: C:\v\v.exe
vexe mtime: 2024-10-01 06:01:23

vroot: OK, value: C:\v
VMODULES: OK, value: C:\Users\info\.vmodules
VTMP: OK, value: C:\Users\info\AppData\Local\Temp\v_0

Git version: git version 2.42.0.windows.2
Git vroot status: 0.4.8-10-g1b812f6b-dirty
.git/config present: true

CC version: Error: 'cc' is not recognized as an internal or external command,

operable program or batch file.


thirdparty/tcc status: thirdparty-windows-amd64 b425ac82

What did you do?
./v -g -o vdbg cmd/v && ./vdbg main.v

module main

import sokol.gfx

struct GameObject  {
mut:
	shader_cache    map[string]gfx.Pipeline
}

fn main() {
	g := GameObject{}
	println(g)
}

What did you expect to see?

no c error

What did you see instead?

================== C compilation error (from tcc): ==============
cc: C:/v/thirdparty/sokol/sokol_app.h:7834: warning: implicit declaration of function 'freopen_s'
cc: C:/Users/info/AppData/Local/Temp/v_0/main.01J93DP44V8CYN34300JY0EJ37.tmp.c:2988: error: 'indent_struct' undeclared
... (the original output was 8 lines long, and was truncated to 2 lines)
=================================================================
(You can pass `-cg`, or `-show-c-output` as well, to print all the C error messages).
builder error: 
==================
C error found. It should never happen, when compiling pure V code.
This is a V compiler bug, please report it using `v bug file.v`,
or goto https://github.com/vlang/v/issues/new/choose .
You can also use #help on Discord: https://discord.gg/vlang .

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[esquerbatua]

It's more related to print a C alias of C.sgl_pipeline (pub type Pipeline = C.sgl_pipeline)

If you run a basic struct without a map of a C alias it works:

module main

struct GameObject  {
mut:
	shader_cache    map[string]int
}

fn main() {
	g := GameObject{}
	println(g)
}

result:

GameObject{
    shader_cache: {}
}

[esquerbatua]

Shouldn't fields that are aliases to C be printed?

[daansystems]

module main

import sokol.gfx

struct GameObject  {
mut:
	shader_pipeline    gfx.Pipeline
}

fn main() {
	p := GameObject{}
	println(p)
}

prints correct:

GameObject{
    shader_pipeline:     sokol.gfx.Pipeline(C.sg_pipeline{
    id: 0
})
}