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/*
* phc -- the open source PHP compiler
* See doc/license/README.license for licensing information
*
* Base class for Passes.
*/
#ifndef PHC_PASS_H
#define PHC_PASS_H
#include "lib/String.h"
#include "process_ir/IR.h"
class Pass_manager;
class Pass : virtual public GC_obj
{
public:
Pass () : name (NULL), description(NULL), enabled(true) { }
String* name;
String* description;
public:
virtual void run (IR::PHP_script* in, Pass_manager* pm) = 0;
virtual void post_process () { }
private:
// Passes should not play with this, and should instead use pass_is_enabled ().
bool enabled;
public:
bool is_enabled (Pass_manager* pm) { return enabled && pass_is_enabled (pm); }
void set_enabled (bool e) { enabled = e; }
// Passes should use this to control their activation
virtual bool pass_is_enabled (Pass_manager* pm) { return true; }
virtual void run_pass (IR::PHP_script* in, Pass_manager* pm, bool main)
{
if (is_enabled (pm))
run (in, pm);
}
public:
virtual ~Pass () {}
};
#endif // PHC_PASS_H
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