www.digitalmars.com         C & C++   DMDScript  

digitalmars.D.bugs - [Issue 12797] New: RDMD tries to compile imports inside

https://issues.dlang.org/show_bug.cgi?id=12797

          Issue ID: 12797
           Summary: RDMD tries to compile imports inside
                    traits(compiles,...)
           Product: D
           Version: unspecified
          Hardware: x86_64
                OS: Windows
            Status: NEW
          Severity: enhancement
          Priority: P1
         Component: tools
          Assignee: nobody puremagic.com
          Reporter: cbkbbejeap mailinator.com

// test.d
enum x = __traits(compiles, (){ import doesNotExist; });

DMD works:
 dmd -c test.d

RDMD fails:
 rdmd -c test.d

The problem is RDMD gets dependencies by reading DMD's -v output, which always includes doesNotExist (since DMD *does* attempt to import it). Since RDMD sees doesNotExist in the -v output, it mistakenly tries to build it. This prevents optional imports from working with RDMD: static if( __traits(compiles, (){ import foobar; }) ) { import foobar; } else /+ do something else +/ It might be better for RDMD to read the -deps output instead, and omit the files listed with "(???)" as the filename. --
May 24 2014