我使用 NativeCall
在perl6脚本中映射 GetFullPathName
windows API,因此我编写了以下内容:
#!perl6
use NativeCall;
constant \WIN32_MAX_PATH = 260;
#I may use directly $path.IO.absolute()
sub Win32-GetFullPathName(
Str $lpFileName is encoded('utf16'),
int32 $nBufferLength,
#Str $lpBuffer is encoded('utf16') is rw,
Blob $lpBuffer is rw,
Str $lpFilenameIndex is rw)
returns int32
is native('kernel32.dll')
is symbol('GetFullPathNameW')
{ * }
my $path = '.';
my $fp-size = Win32-GetFullPathName(
$path, # $path ~ "\0", # <!-- this hack make it working fine
WIN32_MAX_PATH,
#my Str $fpath = ' ' x WIN32_MAX_PATH;
my $buffer = buf16.allocate(WIN32_MAX_PATH),
Str );
put "[$fp-size] => ", $buffer.decode('utf16').substr(0, $fp-size);
代码随机工作,直到我在 $path
之后追加 "\0"
.
[编辑]多次调用时的结果:
[12] => D:\ dev \ pa.t [12] => D:\ dev \ pa . [12] => D:\ dev \pa.μºƒ[9] => D:\ dev \ pa [9] => D:\ dev \ pa
还有其他正确的方法吗?
1 回答
我怀疑
src/strings/utf16.c
中有一个MoarVM错误,特别是line 403:应该读一下
如果您可以验证这可以解决您的问题,请随意file a bug report甚至create a pull request .