C Error: Generic Result/Option Function Return Fixed Array

[heyimtcn]

Describe the bug

Calling a generic function T that returns T in an Option or Result with T being a fixed array will cause this error to happen.

Reproduction Steps

fn example[T]() ?T {
	return T{}
}

fn main() {
	example[[1]int]()
}

Expected Behavior

The array T to be returned.

Current Behavior

It created a C error as follows:

/tmp/v_60000/code.10172036010122743983.tmp.c:1881: warning: type defaults to int
/tmp/v_60000/code.10172036010122743983.tmp.c:1881: error: ';' expected (got "main__example_T_Array_fixed_int_1")

Possible Solution

It appears the issue lies in the automatically generated function name.

Additional Information/Context

The element type and size of T don't matter.

This bug has been found and only been tested on V Playground.

V version

V 0.4.4 28e810d

Environment details (OS name and version, etc.)

V full version: V 0.4.4 28e810d
OS: linux, Debian GNU/Linux 11 (bullseye) (VM)
Processor: 1 cpus, 64bit, little endian, Intel(R) Xeon(R) CPU E5-2686 v4 @ 2.30GHz

getwd: /home/admin/playground
vexe: /home/admin/v/v
vexe mtime: 2024-01-10 11:15:03

vroot: OK, value: /home/admin/v
VMODULES: OK, value: .vmodules
VTMP: OK, value: /tmp/v_0

Git version: git version 2.30.2
Git vroot status: Error: fatal: detected dubious ownership in repository at '/home/admin/v'
To add an exception for this directory, call:

	git config --global --add safe.directory /home/admin/v
.git/config present: true

CC version: cc (Debian 10.2.1-6) 10.2.1 20210110
thirdparty/tcc status: Error: fatal: detected dubious ownership in repository at '/home/admin/v/thirdparty/tcc'
To add an exception for this directory, call:

	git config --global --add safe.directory /home/admin/v/thirdparty/tcc
 Error: fatal: detected dubious ownership in repository at '/home/admin/v/thirdparty/tcc'
To add an exception for this directory, call:

	git config --global --add safe.directory /home/admin/v/thirdparty/tcc

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