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digitalmars.D.bugs - [Issue 17976] New: core.exception.AssertError ddmd/dsymbolsem.d(1624)

https://issues.dlang.org/show_bug.cgi?id=17976

          Issue ID: 17976
           Summary: core.exception.AssertError ddmd/dsymbolsem.d(1624)
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: issues.dlang jmdavisProg.com

I guess that this is technically an ICE, but it doesn't really cause problems.
The compiler really shouldn't be failing an assertion though. This code:

----------------------
struct S
{
    this(string a, string a)
    {
    }
}

void main()
{
}
----------------------

results in this error

test.d(3): Error: constructor test.S.this parameter this.a is already defined
core.exception.AssertError ddmd/dsymbolsem.d(1624): Assertion failure
----------------

The error message is correct, but the AssertError that happens afterwards
shouldn't be happening.

--
Nov 09