[cpp] Static access through value String fails with null pointer

[Simn]

class Main {
    static function main() {
        var s = String;
        trace(s.fromCharCode(65));
    }
}

This seems to only apply to String itself.

[Simn]

This also works with -D cppast.

@hughsando: Should I activate -D cppast for our unit tests and add all the passing issues?

[hughsando]

Yes, -D cppast should probably be tested now.
I have not properly debugged cppia with cppast though.

The other thing I was interested in is testing hxcpp against haxe 3.2.1 to
avoid creating dependency hell for anyone. But I guess I need to do
something with the hxcpp repo there.

On Thu, Mar 17, 2016 at 8:29 PM, Simon Krajewski notifications@github.com
wrote:

This also works with -D cppast.

@hughsando https://github.com/hughsando: Should I activate -D cppast
for our unit tests and add all the passing issues?

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#4667 (comment)

[Simn]

I can't quite compile our unit tests with -D cppast yet:

cl.exe -Iinclude -nologo -Od /WX- /fp:precise -DHX_WINDOWS -D_USING_V120_SDK71_ -GR -Zi -Fdobj/msvc18-debugxp/vc.pdb -FS -Oy- -c -EHs -GS- -arch:SSE -IC:/GitHub/hxcpp/include -DHXCPP_DEBUG -DHXCPP_VISIT_ALLOCS -DHXCPP_API_LEVEL=330 -D_CRT_SECURE_NO_DEPRECATE -D_ALLOW_MSC_VER_MISMATCH -D_ALLOW_ITERATOR_DEBUG_LEVEL_MISMATCH -wd4996 -MT ./src/unit/issues/_Issue3596/ClassWithConstructorThatCalls.cpp -FoC:/GitHub/haxe/tests/unit/bin/cpp/obj/msvc18-debugxp/696e4ebd_ClassWithConstructorThatCalls.obj
Issue3635.cpp
./src/unit/issues/Issue3635.cpp(48) : error C2664: 'hx::Anon_obj *hx::Anon_obj::setFixed(int,const String &,const cpp::Variant &)' : cannot convert argument 3 from 'Dynamic' to 'const cpp::Variant &'
        Reason: cannot convert from 'Dynamic' to 'const cpp::Variant'
        No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called

[hughsando]

Seems to work for me - do you have latest hxcpp?

[Simn]

C:\GitHub\hxcpp>git rev-parse HEAD
cbeb260aeda87e88cb129f3b3722fe4f6dce6a2a

C:\GitHub\hxcpp>haxelib path hxcpp
C:\GitHub\hxcpp\
-D hxcpp=3.2.0

Looks like it...

[hughsando]

This is the line that should stop that error.
https://github.com/HaxeFoundation/hxcpp/blob/master/include/cpp/Variant.h#L68
It might be a "const" thing, but usually that would show up on non-microsoft compilers.

[Simn]

Here's my VC version:

C:\GitHub\haxe\tests\unit>cl
Microsoft (R) C/C++ Optimizing Compiler Version 18.00.31101 for x86

[hughsando]

I think removing the cast from Dynamic may have solved this. Not sure why I was not getting the error until I rebuilt some stuff - might be a dependency issue somewhere.

[Simn]

Works now!

Any reason not to make -D cppast the default now and allow -D no-cppast? That should get us more testing data.

[hughsando]

Currently, if you compile a cppia host (-D scriptable) with -D cppast, it
will not work.
I could default non-cppia (no 'scriptable' flag) to cppast and cppia
('scriptable') to non-cppast, with defines to override until I get cppia
fixed.

On Thu, Mar 17, 2016 at 11:32 PM, Simon Krajewski notifications@github.com
wrote:

Works now!

Any reason not to make -D cppast the default now and allow -D no-cppast?
That should get us more testing data.

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#4667 (comment)

[Simn]

Getting this on travis linux:

 - Running process: g++ -Iinclude -c -fvisibility=hidden -g -fpic -fPIC -DHX_LINUX -DHXCPP_DEBUG -DHXCPP_VISIT_ALLOCS -DHXCPP_API_LEVEL=330 -m32 -I/home/travis/haxelib/hxcpp/git/include -x c++ -frtti -Wno-invalid-offsetof ./src/unit/issues/misc/Issue3008Class.cpp -o/home/travis/build/Simn/haxe/tests/unit/bin/cpp/obj/linux-debug/ae85a05e_Issue3008Class.o
Error in building thread
g++ -Iinclude -c -fvisibility=hidden -g -fpic -fPIC -DHX_LINUX -DHXCPP_DEBUG -DHXCPP_VISIT_ALLOCS -DHXCPP_API_LEVEL=330 -m32 -I/home/travis/haxelib/hxcpp/git/include -x c++ -frtti -Wno-invalid-offsetof ./src/unit/issues/misc/Issue3008Class.cpp -o/home/travis/build/Simn/haxe/tests/unit/bin/cpp/obj/linux-debug/ae85a05e_Issue3008Class.o
Error: In file included from /home/travis/haxelib/hxcpp/git/include/hxcpp.h:313:0,
                 from ./src/unit/issues/misc/Issue3008Class.cpp:1:
/home/travis/haxelib/hxcpp/git/include/hx/FieldRef.h: In member function ‘hx::FieldRef::operator Dynamic() const’:
/home/travis/haxelib/hxcpp/git/include/hx/FieldRef.h:48:103: error: call of overloaded ‘Dynamic(hx::Val)’ is ambiguous
/home/travis/haxelib/hxcpp/git/include/hx/FieldRef.h:48:103: note: candidates are:
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:30:13: note: Dynamic::Dynamic(const HX_CHAR*) <near match>
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:30:13: note:   no known conversion for argument 1 from ‘hx::Val {aka cpp::Variant}’ to ‘const HX_CHAR* {aka const char*}’
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:29:4: note: Dynamic::Dynamic(const Dynamic&)
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:27:4: note: Dynamic::Dynamic(const String&)
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:26:4: note: Dynamic::Dynamic(hx::Object*) <near match>
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:26:4: note:   no known conversion for argument 1 from ‘hx::Val {aka cpp::Variant}’ to ‘hx::Object*’
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:25:4: note: Dynamic::Dynamic(float)
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:24:4: note: Dynamic::Dynamic(double)
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:23:4: note: Dynamic::Dynamic(bool)
/home/travis/haxelib/hxcpp/git/include/Dynamic.h:21:4: note: Dynamic::Dynamic(int)
Error: Build failed
Command exited with 1 in 4s: haxe [compile-cpp.hxml,-D,HXCPP_M32,-D,travis]