[Issue 2887] Wrong line number reported inside string mixin

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=2887

Iain Buclaw  changed:

   What|Removed |Added

   Priority|P2  |P3

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[Issue 2887] Wrong line number reported inside string mixin

[d-bugmail--- via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=2887

Seb  changed:

   What|Removed |Added

 CC||greensunn...@gmail.com
Version|D1 (retired)|D2

--- Comment #3 from Seb  ---
Changing this to D2 as it's still not working as expected:

---
template line()
{
const char[] line = "__LINE__";
}
template wrongLine()
{
const char[] wrongLine = "\n\n\n\n\n__LINE__";
}
void main()
{
import std.stdio;
writefln("Line: %s, %s, %s", __LINE__, mixin(line!()),
mixin(wrongLine!()));
writefln("Line: %s, %s, %s", __LINE__, mixin(line!()),
mixin(wrongLine!()));
}
---


https://run.dlang.io/is/uZrbxu

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[Issue 2887] Wrong line number reported inside string mixin

[d-bugmail]

http://d.puremagic.com/issues/show_bug.cgi?id=2887



--- Comment #2 from Nick Sabalausky  2009-09-07 
13:25:54 PDT ---
Workaround:

template foo()
{
  const char[] foo =
`{ auto __foo_line = __LINE__; // must be on first line
// Also, the extra surrounding {} is needed to
// allow foo to be used twice in the same scope.

Stdout.formatln("Foo:");
Stdout.formatln("  File {}", __FILE__);
Stdout.formatln("  Line {}", __foo_line);
}`;
}

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[Issue 2887] Wrong line number reported inside string mixin

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--- Comment #1 from shro8...@vandals.uidaho.edu  2009-04-24 14:38 ---

What I think it should do is the filename inside a mixin should be (based on
outside values):

__FILE__:__LINE__

and the line number should restart at 1 so that you can get both inside and
outside info even with several levels of mixins

Another option would be to have a __LINES__ macro that is an array of line
numbers for each level of mixins.

__LINES__[$-2] == __LINE__ at mixin()


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