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Array map with lambda #21006

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eptx opened this issue Mar 12, 2024 · 1 comment · Fixed by #21011
Closed

Array map with lambda #21006

eptx opened this issue Mar 12, 2024 · 1 comment · Fixed by #21011
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Bug This tag is applied to issues which reports bugs.

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@eptx
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eptx commented Mar 12, 2024

Describe the bug

Code: https://play.vlang.io/p/45c4b2b322

arr := ['a','b','c']
arr.map(|x| println(x))

Reproduction Steps

Run code above in playground

Expected Behavior

println array elements

Current Behavior

Output:

/tmp/v_60000/../../../../../../box/code.v:9: error: declaration of void object
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

Exited with error status 1

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.4 aeadc0a

Environment details (OS name and version, etc.)

V full version: V 0.4.4 aeadc0a
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: 2024-03-12 20:23:23

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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@eptx eptx added the Bug This tag is applied to issues which reports bugs. label Mar 12, 2024
@JalonSolov
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This is because println doesn't return a value. V should definitely catch it and give a nicer error.

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3 participants