[cpp] Invalid code on switch with enum from callable

Regression in #11151

https://github.com/HaxeCheckstyle/tokentree/blob/d6f75b95d037aafe1dbc97cf77352f37c0c74ff3/src/tokentree/TokenTree.hx#L119

Error: ./src/tokentree/TokenTree.cpp: In member function ‘void tokentree::TokenTree_obj::internalFilterCallback(hx::Callable<hx::ObjectPtr<tokentree::FilterResult_obj>(hx::ObjectPtr<tokentree::TokenTree_obj>, int)>, Array<Dynamic>, Dynamic)’:
./src/tokentree/TokenTree.cpp:551:90: error: ‘class hx::ObjectPtr<tokentree::FilterResult_obj>’ has no member named ‘StaticCast’
  551 | HXLINE( 119)                    switch((int)(callback(::hx::ObjectPtr<OBJ_>(this),depth).StaticCast< ::hx::EnumBase >()->_hx_getIndex())){
      |                                                                                          ^~~~~~~~~~
./src/tokentree/TokenTree.cpp:551:117: error: expected primary-expression before ‘>’ token
  551 | HXLINE( 119)                    switch((int)(callback(::hx::ObjectPtr<OBJ_>(this),depth).StaticCast< ::hx::EnumBase >()->_hx_getIndex())){
      |                                                                                                                     ^
./src/tokentree/TokenTree.cpp:551:119: error: expected primary-expression before ‘)’ token
  551 | HXLINE( 119)                    switch((int)(callback(::hx::ObjectPtr<OBJ_>(this),depth).StaticCast< ::hx::EnumBase >()->_hx_getIndex())){
      |                                                                                                                       ^
At global scope:
cc1plus: note: unrecognized command-line option ‘-Wno-inconsistent-missing-override’ may have been intended to silence earlier diagnostics

Stripped down sample:

enum E {
	A;
	B;
}

function main() {
	final callback:() -> E = () -> cast null;
	trace(callback().match(A));
}

Error: ./src/_Main/Main_Fields_.cpp: In static member function ‘static void _Main::Main_Fields__obj::main()’:
./src/_Main/Main_Fields_.cpp:69:41: error: ‘class hx::ObjectPtr<E_obj>’ has no member named ‘StaticCast’
   69 | HXDLIN(   8)            if ((callback().StaticCast< ::hx::EnumBase >()->_hx_getIndex() == 0)) {
      |                                         ^~~~~~~~~~
./src/_Main/Main_Fields_.cpp:69:68: error: expected primary-expression before ‘>’ token
   69 | HXDLIN(   8)            if ((callback().StaticCast< ::hx::EnumBase >()->_hx_getIndex() == 0)) {
      |                                                                    ^
./src/_Main/Main_Fields_.cpp:69:70: error: expected primary-expression before ‘)’ token
   69 | HXDLIN(   8)            if ((callback().StaticCast< ::hx::EnumBase >()->_hx_getIndex() == 0)) {
      |                                                                      ^

Seems like it should be generating callback()->_hx_getIndex() instead of callback().StaticCast< ::hx::EnumBase >()->_hx_getIndex(), since it's not dynamic anymore.

@Aidan63

@Aidan63 thanks for looking into it! With your patch my original program is compiling fine, and so is formatter.

However, I don't think the test case is actually covering it since the callable result is a regular function argument, not a switch/match. Without your patch it generated this, which still compiled fine for me:

HXLINE(  14)		 ::unit::issues::_Issue12586::E _hx_tmp = ::hx::Callable<  ::unit::issues::_Issue12586::E() >(new _hx_Closure_0())();
HXDLIN(  14)		this->eq(::unit::issues::_Issue12586::E_obj::A_dyn(),_hx_tmp,::hx::SourceInfo(HX_("src/unit/issues/Issue12586.hx",70,95,dc,a1),14,HX_("unit.issues.Issue12586",e3,fe,eb,77),HX_("test",52,c8,f9,4c)));

I think we need a test case like this, with an explicit match or switch expression:

t(callback().match(A));

I was going to open a PR to add it, but when I added that test the error came back. I was confused because it's the same as my original sample. It turns out, the unit tests are using -D analyzer-optimize, and if I add that it also brings it back:

	::hx::Callable< void ( ::Dynamic, ::Dynamic) > _hx_tmp = ::haxe::Log_obj::trace;
	bool _hx_tmp1;
	if ((::hx::Callable<  ::_Main::E() >(new _hx_Closure_0())().StaticCast< ::hx::EnumBase >()->_hx_getIndex() == 0)) {
		_hx_tmp1 = true;
	}
	else {
		_hx_tmp1 = false;
	}
	_hx_tmp(_hx_tmp1,::hx::SourceInfo(HX_("Main.hx",05,5c,7e,08),9,HX_("Main",59,64,2f,33),HX_("main",39,38,56,48)));

@Simn

@Simn would you mind reopening this? I don't have permission to.

TLDR is that the error is still present when compiling the sample with -D analyzer-optimize

I've got a proper fix for this now (https://github.com/Aidan63/haxe/tree/cpp-enum-callable) and have updated that test. I'm just working on fixing one failing cppia test (Issue6560)

Should be properly fixed now.

Seems like it works now with -D analyzer-optimize, but it is broken again with the analyzer disabled... 😅

The formatter benchmarks are still failing to build.

Could we reopen?

@Aidan63

@Aidan63 thanks! Formatter cpp benchmarks are back now

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[cpp] Invalid code on switch with enum from callable #12586

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[cpp] Invalid code on switch with enum from callable #12586

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tobil4sk commented on Feb 10, 2026

tobil4sk commented on Feb 13, 2026

Aidan63 commented on Mar 3, 2026

Aidan63 commented on Mar 9, 2026

tobil4sk commented on Mar 26, 2026

tobil4sk commented on May 6, 2026

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