[Issue 21614] compiled imports: core.exception.AssertError at src/dmd/semantic3.d(812): Assertion failure

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21614

Iain Buclaw <ibuclaw at gdcproject.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #1816|0                           |1
        is obsolete|                            |

--- Comment #3 from Iain Buclaw <ibuclaw at gdcproject.org> ---
Created attachment 1817
  --> https://issues.dlang.org/attachment.cgi?id=1817&action=edit
reduced test without errors

Attached reduced test that hits the assert error without any compiler errors.

issue21614.d 
---
real logmdigammaInverse(real y)
{
    import imports.issue21614.numeric;
    findRoot(1, y, 2);
    return y; 
}
---
imports/issue21614/numeric.d
---
module imports.issue21614.numeric;
import imports.issue21614.typecons;

T findRoot(T, DF, DT)(DF f, T a, T b, DT tolerance) 
{
    immutable r = findRoot(f, a, b, a, b, tolerance);
    return r[2];
}

T findRoot(T, DF)(DF f, T a, T b)
{
    return findRoot(f, a, b, false);
}

Tuple!(T, T, R) findRoot(T, R, DF, DT)(DF, T, T, R, R, DT) 
{
    return Tuple!(T, T, R)();
}
---
imports/issue21614/typecons.d
---
module imports.issue21614.typecons;
template AliasSeq(TList...)
{
    alias AliasSeq = TList;
}

template staticMap(alias F, T...)
{
    static if (T.length == 1)
        alias staticMap = AliasSeq!(F!T);
    else
        alias staticMap = AliasSeq!(staticMap!(F, T[0]), staticMap!(F, T[$/2 ..
$]));
}
uint formattedWrite(Writer, Char)(Writer , Char)
{
    auto spec = FormatSpec!Char();
    return 0;
}

struct FormatSpec(Char)
{
    import imports.issue21614.typecons; 
}
template ElementEncodingType(R)
{
    static if (is(R : E[], E))
        alias ElementEncodingType = E;
}

struct Appender(A)
{
    inout(ElementEncodingType!A)[] data()
    {
        return [];
    }
}

Appender!A appender(A)()
{
    return Appender!A();
}
immutable(Char)[] format(Char, Args...)(Char[] fmt)
{
    auto w = appender!(Char[]);
    formattedWrite(w, fmt);
    return w.data;
}
template Tuple(Specs...)
{
    template parseSpecs(Specs...)
    {
        static if (Specs.length == 0)
            alias parseSpecs = AliasSeq!();
        static if (is(Specs[0]))
            alias parseSpecs = AliasSeq!(FieldSpec!(Specs[0]),
parseSpecs!(Specs[1 .. $]));
    }

    template FieldSpec(T, string s = "")
    {
        alias Type = T;
        alias name = s;
    }

    alias fieldSpecs = parseSpecs!Specs;

    alias extractType(alias spec) = spec.Type;
    alias extractName(alias spec) = spec.name;

    string injectNamedFields()
    {
        string decl;
        foreach (i; staticMap!(extractName, fieldSpecs))
            format(i);
        return decl;
    }

    struct Tuple
    {
        alias Types = staticMap!(extractType, fieldSpecs);
        Types expand;
        mixin(injectNamedFields);

        alias expand this;
        this(Types)
        {
        }
    }
}
---

--