- separated the Doom specific parts from the compiler backend into a separate file, these parts now get invoked via callback hooks.

src/scripting/backend/codegen_doom.h

@@ -0,0 +1,112 @@
+#pragma once
+#include "codegen.h"
+#include "actor.h"
+
+//==========================================================================
+//
+//	FxActionSpecialCall
+//
+//==========================================================================
+
+class FxActionSpecialCall : public FxExpression
+{
+	int Special;
+	FxExpression *Self;
+	FArgumentList ArgList;
+
+public:
+
+	FxActionSpecialCall(FxExpression *self, int special, FArgumentList &args, const FScriptPosition &pos);
+	~FxActionSpecialCall();
+	FxExpression *Resolve(FCompileContext&);
+	ExpEmit Emit(VMFunctionBuilder *build);
+};
+
+//==========================================================================
+//
+//	FxClassDefaults
+//
+//==========================================================================
+
+class FxClassDefaults : public FxExpression
+{
+	FxExpression *obj;
+
+public:
+	FxClassDefaults(FxExpression *, const FScriptPosition &);
+	~FxClassDefaults();
+	FxExpression *Resolve(FCompileContext&);
+	ExpEmit Emit(VMFunctionBuilder *build);
+};
+
+//==========================================================================
+//
+//	FxGetDefaultByType
+//
+//==========================================================================
+
+class FxGetDefaultByType : public FxExpression
+{
+	FxExpression *Self;
+
+public:
+
+	FxGetDefaultByType(FxExpression *self);
+	~FxGetDefaultByType();
+	FxExpression *Resolve(FCompileContext&);
+	ExpEmit Emit(VMFunctionBuilder *build);
+};
+
+//==========================================================================
+//
+// Only used to resolve the old jump by index feature of DECORATE
+//
+//==========================================================================
+
+class FxStateByIndex : public FxExpression
+{
+	unsigned index;
+
+public:
+
+	FxStateByIndex(int i, const FScriptPosition &pos) : FxExpression(EFX_StateByIndex, pos)
+	{
+		index = i;
+	}
+	FxExpression *Resolve(FCompileContext&);
+};
+
+//==========================================================================
+//
+// Same as above except for expressions which means it will have to be
+// evaluated at runtime
+//
+//==========================================================================
+
+class FxRuntimeStateIndex : public FxExpression
+{
+	FxExpression *Index;
+	int symlabel;
+
+public:
+	FxRuntimeStateIndex(FxExpression *index);
+	~FxRuntimeStateIndex();
+	FxExpression *Resolve(FCompileContext&);
+	ExpEmit Emit(VMFunctionBuilder *build);
+};
+
+//==========================================================================
+//
+//
+//
+//==========================================================================
+
+class FxMultiNameState : public FxExpression
+{
+	PClassActor *scope;
+	TArray<FName> names;
+public:
+
+	FxMultiNameState(const char *statestring, const FScriptPosition &pos, PClassActor *checkclass = nullptr);
+	FxExpression *Resolve(FCompileContext&);
+};