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digitalmars.D.bugs - [Issue 10076] New: expression.c:4310: virtual Expression* TypeExp::semantic(Scope*): Assertion `0' failed.

reply d-bugmail puremagic.com writes:
http://d.puremagic.com/issues/show_bug.cgi?id=10076

           Summary: expression.c:4310: virtual Expression*
                    TypeExp::semantic(Scope*): Assertion `0' failed.
           Product: D
           Version: D2
          Platform: x86_64
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: DMD
        AssignedTo: nobody puremagic.com
        ReportedBy: simendsjo gmail.com



Using dmd 2.062 on GNU/Linux Arch x64. Haven't tried other setups.

Running dustmite now, but it looks like it might take a while.

source/simendlib/validate.d(69): Error: template instance
getMembersAndAttributesWhere!(string, isValidationAttr)
getMembersAndAttributesWhere!(string, isValidationAttr) does not match template
declaration getMembersAndAttributesWhere(alias T, alias Pred)
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(73): Error: template instance
simendlib.validate.getValidaterAttrs!(string) error instantiating
source/simendlib/validate.d(31):        instantiated from here:
validate!(string)
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(73): Error: forward reference to
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements'
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(73): Error: forward reference to
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements'
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(69): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements' is not
defined
source/simendlib/validate.d(74): Error: forward reference to
'getMembersAndAttributesWhere!(string, isValidationAttr).Elements'
dmd: expression.c:4310: virtual Expression* TypeExp::semantic(Scope*):
Assertion `0' failed.
Error: Build command failed with exit code -6

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Where is the test case?

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Here's a dustmine reduced testcase. Run with `dmd -unittest`.

unittest
{
string s;

validate(s);
}

template getValidaterAttrs(T)
{
alias getValidaterAttrs = getMembersAndAttributesWhere!().Elements;
}

string[] validate(T)(T )
{   alias memberAttrs = getValidaterAttrs!T;
if(!memberAttrs.length)
return ;

}

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 Here's a dustmine reduced testcase. Run with `dmd -unittest`.


Thanks.

AFAICS This is a regreession from 2.060. This reduced code
(Use old alias syntax):

void main()
{
    string s;
    validate(s);
}
template getValidaterAttrs(T)
{
    alias getMembersAndAttributesWhere!().Elements getValidaterAttrs;
}
void validate(T)(T)
{
    alias getValidaterAttrs!T memberAttrs;
    auto x = memberAttrs.length;
}

Fails without assertion in 2.059:

test.d(8): Error: template instance getMembersAndAttributesWhere!() template
'getMembersAndAttributesWhere' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(12): Error: template instance test.getValidaterAttrs!(string) error
instantiating
test.d(4):        instantiated from here: validate!(string)
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(12): Error: forward reference to
'getMembersAndAttributesWhere!().Elements'
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(12): Error: forward reference to
'getMembersAndAttributesWhere!().Elements'
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(13): Error: forward reference to
'getMembersAndAttributesWhere!().Elements'
test.d(13): Error: getValidaterAttrs!(string) is used as a type
test.d(4): Error: template instance test.validate!(string) error instantiating


But cause an ice in 2.060:

test.d(8): Error: template instance getMembersAndAttributesWhere!() template
'getMembersAndAttributesWhere' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(12): Error: template instance test.getValidaterAttrs!(string) error
instantiating
test.d(4):        instantiated from here: validate!(string)
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(12): Error: forward reference to
'getMembersAndAttributesWhere!().Elements'
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(12): Error: forward reference to
'getMembersAndAttributesWhere!().Elements'
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(8): Error: identifier 'Elements' of
'getMembersAndAttributesWhere!().Elements' is not defined
test.d(13): Error: forward reference to
'getMembersAndAttributesWhere!().Elements'
Assertion failure: '0' on line 4216 in file 'expression.c'

abnormal program termination

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Kenji Hara <k.hara.pg gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |ice, pull
           Platform|x86_64                      |All
           Severity|normal                      |regression



https://github.com/D-Programming-Language/dmd/pull/2032

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Commits pushed to master at https://github.com/D-Programming-Language/dmd

https://github.com/D-Programming-Language/dmd/commit/1de97706107f9d4cc71553915ef29f6f426fbf41
fix Issue 10076 - expression.c:4310: virtual Expression*
TypeExp::semantic(Scope*): Assertion `0' failed.

https://github.com/D-Programming-Language/dmd/commit/61bcb35cc9a0dd6377b5c17e07a1ea6cb7fb2f12


[REG2.060] fix Issue 10076 - expression.c:4310: virtual Expression*
TypeExp::semantic(Scope*): Assertion `0' failed.

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Kenji Hara <k.hara.pg gmail.com> changed:

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


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