Cannot resolve constant from package when used as initial parameter value
tcak
tcak at pcak.com
Thu Feb 13 00:29:21 PST 2014
I recently started using that new feature "package.d". While
writing codes today, I started seeing some errors. For
illustration, I wrote a piece of code. I will list 3 different
files here. File-Folder structure is below:
./app.d
./pipes/package.d
./pipes/namedpipe.d
File: app.d
-------------------
import pipes;
void main(){}
File: ./pipes/package.d
-------------------
module pipes;
public import pipes.namedpipe;
public enum PIPE_BUF = 4096;
File: ./pipes/namedpipe.d
-------------------
module pipes.namedpipe;
public int getPipeBufferSize(){ return pipes.PIPE_BUF; }
public void foo( size_t a = pipes.PIPE_BUF ){}
Situation is that if I do not define that "foo" function in
namedpipe.d file, everything is fine. No error at all, and
"getPipeBufferSize" function returns the value that comes from
"pipes.PIPE_BUF". When the function "foo" is defined that takes
pipes.PIPE_BUF as its initial value of parameter, following error
is seen:
pipes/namedpipe.d(7): Error: cannot resolve type for PIPE_BUF
---
While writing this post, I discovered that in "pipes/package.d"
file, if I define "PIPE_BUF" BEFORE the import command as below:
module pipes;
public enum PIPE_BUF = 4096;
public import pipes.namedpipe;
then there is no error at all. Is this intentional? As far as I
remember, D compiler was finding definitions no matter later or
before defined.
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