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Issue 7403 - Possible to instantiate forward referenced classes
Summary: Possible to instantiate forward referenced classes
Status: RESOLVED INVALID
Alias: None
Product: D
Classification: Unclassified
Component: dmd (show other issues)
Version: D2
Hardware: All All
: P2 normal
Assignee: No Owner
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2012-01-30 17:28 UTC by Martin Nowak
Modified: 2012-01-31 01:19 UTC (History)
2 users (show)

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Description Martin Nowak 2012-01-30 17:28:33 UTC 
class Forward;

void main()
{
    auto fwd = new Forward; // linker error
}

----

This should be detected at compile time.
Comment 1 Jacob Carlborg 2012-01-30 23:20:01 UTC 
Isn't it possible to have the implementation in a different object file?
Comment 2 Walter Bright 2012-01-31 01:19:04 UTC 
Jacob's right. This is not a bug. It's not conceptually different from calling a function marked as "extern".