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incorrect values in interface reflection #20864

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Ddiidev opened this issue Feb 18, 2024 · 1 comment · Fixed by #20876
Closed

incorrect values in interface reflection #20864

Ddiidev opened this issue Feb 18, 2024 · 1 comment · Fixed by #20876
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Bug This tag is applied to issues which reports bugs.

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@Ddiidev
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Ddiidev commented Feb 18, 2024

Describe the bug

Code: https://play.vlang.io/p/9c7847226e

struct People {
	count int
}
interface IPeople {
	count int
}

p := IPeople(People{42})

dump(p.count)
$for f in IPeople.fields {
	dump(p.$(f.name))
}

image

Reproduction Steps

https://play.vlang.io/?query=9c7847226e

struct People {
	count int
}
interface IPeople {
	count int
}

p := IPeople(People{42})

dump(p.count)
$for f in IPeople.fields {
	dump(p.$(f.name))
}

Expected Behavior

[code.v:10] p.count: 42
[code.v:12] p.$(f.name): 42

Current Behavior

Output:

[code.v:10] p.count: 42
[code.v:12] p.$(f.name): 838049760

Possible Solution

No response

Additional Information/Context

No response

V version

V 0.4.4 f472355

Environment details (OS name and version, etc.)

V full version: V 0.4.4 f472355
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: 2024-02-18 15:23:23

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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@Ddiidev Ddiidev added the Bug This tag is applied to issues which reports bugs. label Feb 18, 2024
@MCausc78
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That works:

struct People {
	count int
}
interface IPeople {
	count int
}

p := IPeople(People{42})

dump(p.count)
$for f in IPeople.fields {
	dump(unsafe { *&int(voidptr(p.$(f.name))) })
}

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