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digitalmars.D.bugs - [Issue 2303] New: static assert in a template function is not reported

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2303

           Summary: static assert in a template function is not reported
           Product: D
           Version: 2.018
          Platform: PC
        OS/Version: Windows
            Status: NEW
          Severity: major
          Priority: P2
         Component: DMD
        AssignedTo: bugzilla digitalmars.com
        ReportedBy: samukha voliacable.com


I wasn't able to reduce this further. Must be related to 2227

T foo(T : S!(U), U)(invariant(U) u)
{
    T s;
    bar!(T)(s, u);
    return s;
}

void bar(T : S!(U), U)(T s, invariant(U) u)
{
    static assert(false, "Error!"); // compiles if this line is commented out
}

void main()
{
    foo!(S!(int))(1);
}
----
: template Test.bar(T) does not match any function template declaration
: template Test.bar(T) cannot deduce template function from argument types
!(S!(int))(S!(int),invariant(int))
: template instance Test.foo!(S!(int),int) error instantiating

This should report the static assert message, preferably with template
instantiation trace.


-- 
Aug 22 2008
next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2303





------- Comment #1 from samukha voliacable.com  2008-08-22 03:01 -------
A corrected example:

----
struct S(T)
{
}

void foo(T : S!(U), U)(invariant(U) u)
{
    T s;
    bar!(T)(s, u);
}

void bar(T : S!(U), U)(T s, invariant(U) u)
{
    static assert(false, "Error!");
}

void main()
{
    foo!(S!(int))(1);
}
----

Works as expected if invariant type modifiers are omitted.


-- 
Aug 22 2008
prev sibling next sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2303


bugzilla digitalmars.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |WORKSFORME




------- Comment #2 from bugzilla digitalmars.com  2008-08-26 03:44 -------
The second, corrected example produces the following when compiled with 2.018,
both with and without the invariant type modifiers:

test.d(13): static assert  "Error!"

which appears to be correct.


-- 
Aug 26 2008
prev sibling parent d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=2303





------- Comment #3 from samukha voliacable.com  2008-08-26 08:14 -------
My apologies. This bug disappeared at some point after dmd 2.015


-- 
Aug 26 2008