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cgen error for Name[int](123), when type Name[T] = string | int | T #19159

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spytheman opened this issue Aug 17, 2023 · 0 comments · May be fixed by #20936
Open

cgen error for Name[int](123), when type Name[T] = string | int | T #19159

spytheman opened this issue Aug 17, 2023 · 0 comments · May be fixed by #20936
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Bug This tag is applied to issues which reports bugs. Generics[T] Bugs/feature requests, that are related to the V generics. Unit: cgen Bugs/feature requests, that are related to the default C generating backend. Unit: Compiler Bugs/feature requests, that are related to the V compiler in general.

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@spytheman
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V doctor:

V full version: V 0.4.0 2fec2fa.c5e1c8e
OS: linux, Ubuntu 20.04.6 LTS
Processor: 4 cpus, 64bit, little endian, Intel(R) Core(TM) i3-3225 CPU @ 3.30GHz

getwd: /v/vnew
vexe: /v/vnew/v
vexe mtime: 2023-08-17 13:54:55

vroot: OK, value: /v/vnew
VMODULES: OK, value: /home/delian/.vmodules
VTMP: OK, value: /tmp/v_1000

Git version: git version 2.41.0
Git vroot status: weekly.2023.33-5-gc5e1c8ee
.git/config present: true

CC version: cc (Ubuntu 10.5.0-1ubuntu1~20.04) 10.5.0
thirdparty/tcc status: thirdparty-linux-amd64 12f392c3

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

type Name[T] = string | int | T
_ := Name[int](123)

What did you expect to see?

either a compiled program, or a checker error

What did you see instead?

==================
/tmp/v_1000/a.13613374991411628734.tmp.c:948: error: duplicate member '_int'
...
==================
(Use `v -cg` to print the entire error message)

builder error: 
==================
C error. This should never happen.

This is a compiler bug, please report it using `v bug file.v`.

https://github.com/vlang/v/issues/new/choose

You can also use #help on Discord: https://discord.gg/vlang
@spytheman spytheman added Bug This tag is applied to issues which reports bugs. Unit: Compiler Bugs/feature requests, that are related to the V compiler in general. Generics[T] Bugs/feature requests, that are related to the V generics. Unit: cgen Bugs/feature requests, that are related to the default C generating backend. labels Aug 17, 2023
@MCausc78 MCausc78 linked a pull request Mar 1, 2024 that will close this issue
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Bug This tag is applied to issues which reports bugs. Generics[T] Bugs/feature requests, that are related to the V generics. Unit: cgen Bugs/feature requests, that are related to the default C generating backend. Unit: Compiler Bugs/feature requests, that are related to the V compiler in general.
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checker,cgen: fix duplicates in generic sumtype DarpHome/v
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@spytheman