genbindings: fixes for self parameters, binding building

cmd/genbindings/clang2il.go

@@ -258,6 +258,10 @@ nextMethod:
 				return CppClass{}, err
 			}
 
+			// Always set IsStatic for constructors, since they can be called without
+			// an existing class instance
+			mm.IsStatic = true
+
 			// Some QFoo constructors take a QFooPrivate
 			for _, p := range mm.Parameters {
 				if strings.Contains(p.ParameterType, "Private") {

cmd/genbindings/emitcabi.go

@@ -390,7 +390,7 @@ extern "C" {
 			ret.WriteString(fmt.Sprintf("%s %s_%s(%s);\n", emitReturnTypeCabi(m.ReturnType), c.ClassName, m.SafeMethodName(), emitParametersCabi(m, c.ClassName+"*")))
 
 			if m.IsSignal && !m.HasHiddenParams {
-				ret.WriteString(fmt.Sprintf("%s %s_connect_%s(void* slot);\n", emitReturnTypeCabi(m.ReturnType), c.ClassName, m.SafeMethodName()))
+				ret.WriteString(fmt.Sprintf("%s %s_connect_%s(%s* self, void* slot);\n", emitReturnTypeCabi(m.ReturnType), c.ClassName, m.SafeMethodName(), c.ClassName))
 			}
 		}
 

qt/binding.go

@@ -4,6 +4,8 @@ package qt
 
 import (
 	"C"
+	"runtime/cgo"
+	"unsafe"
 )
 
 type miqtCallbackFunc func(argc C.int, args *C.void)