digitalmars.D.bugs - [Issue 11456] New: works with -allinst but not without
- d-bugmail puremagic.com (44/44) Nov 06 2013 https://d.puremagic.com/issues/show_bug.cgi?id=11456
- d-bugmail puremagic.com (10/10) Nov 06 2013 https://d.puremagic.com/issues/show_bug.cgi?id=11456
https://d.puremagic.com/issues/show_bug.cgi?id=11456 Summary: works with -allinst but not without Product: D Version: D2 Platform: All OS/Version: All Status: NEW Severity: normal Priority: P2 Component: DMD AssignedTo: nobody puremagic.com ReportedBy: bugzilla digitalmars.com 14:03:53 PST --- Andrei reports: This works with -allinst but not without: import std.typecons; interface IDrawable { void drawLine(int x1, int y1, int x2, int y2); } class ImageDraw // note: it does not inherit IDrawable. { void drawLine(int x1, int y1, int x2, int y2) { } } /** Draw a rectangle outline. */ void drawRect(IDrawable draw) { draw.drawLine( 0, 0, 100, 0); draw.drawLine(100, 0, 100, 100); draw.drawLine( 0, 100, 100, 100); draw.drawLine( 0, 0, 0, 100); } void main() { auto imageDraw = new ImageDraw(); //drawRect(imageDraw); // error: can't call this, ImageDraw is not an IDrawable. // perform a structural cast. IDrawable i = wrap!IDrawable(imageDraw); drawRect(i); // and now imageDraw can act as an IDrawable. } -- Configure issuemail: https://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Nov 06 2013
https://d.puremagic.com/issues/show_bug.cgi?id=11456 Andrej Mitrovic <andrej.mitrovich gmail.com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |andrej.mitrovich gmail.com 14:09:49 PST --- Is this OSX-only? -- Configure issuemail: https://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
Nov 06 2013