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#include "cvc4_public.h"
#ifndef __CVC4__PREPROC__PREPROCESSING_PASS_H
#define __CVC4__PREPROC__PREPROCESSING_PASS_H
#include "expr/node.h"
#include <iostream>
#include <vector>
#include <string>
#include "smt/dump.h"
#include "theory/rewriter.h"
#include "theory/theory_engine.h"
using namespace std;
namespace CVC4 {
namespace preproc {
/** Useful for counting the number of recursive calls. */
class ScopeCounter {
private:
unsigned& d_depth;
public:
ScopeCounter(unsigned& d) : d_depth(d) {
++d_depth;
}
~ScopeCounter(){
--d_depth;
}
};
class DefinedFunction {
Node d_func;
vector<Node> d_formals;
Node d_formula;
public:
DefinedFunction() {}
DefinedFunction(Node func, vector<Node> formals, Node formula) :
d_func(func),
d_formals(formals),
d_formula(formula) {
}
Node getFunction() const { return d_func; }
vector<Node> getFormals() const { return d_formals; }
Node getFormula() const { return d_formula; }
};
/* class DefinedFunction */
class AssertionPipeline {
std::vector<Node> d_nodes;
public:
size_t size() const { return d_nodes.size(); }
void resize(size_t n) { d_nodes.resize(n); }
void clear() { d_nodes.clear(); }
Node& operator[](size_t i) { return d_nodes[i]; }
const Node& operator[](size_t i) const { return d_nodes[i]; }
void push_back(Node n) { d_nodes.push_back(n); }
std::vector<Node>& ref() { return d_nodes; }
const std::vector<Node>& ref() const { return d_nodes; }
void replace(size_t i, Node n) {
PROOF( ProofManager::currentPM()->addDependence(n, d_nodes[i]); );
d_nodes[i] = n;
}
};// class AssertionPipeline
struct PreprocessingPassResult {
bool d_noConflict;
PreprocessingPassResult(bool noConflict) : d_noConflict(noConflict){
}
};
class PreprocessingPass {
public:
virtual PreprocessingPassResult apply(AssertionPipeline* assertionsToPreprocess) = 0;
void dumpAssertions(const char* key, const AssertionPipeline& assertionList) {
if( Dump.isOn("assertions") &&
Dump.isOn(std::string("assertions:") + key) ) {
// Push the simplified assertions to the dump output stream
for(unsigned i = 0; i < assertionList.size(); ++ i) {
TNode n = assertionList[i];
Dump("assertions") << AssertCommand(Expr(n.toExpr()));
}
}
}
PreprocessingPass(ResourceManager* resourceManager) : d_resourceManager(resourceManager) {
}
private:
ResourceManager* d_resourceManager;
protected:
void spendResource(unsigned amount) {
d_resourceManager->spendResource(amount);
} // TODO: modify class as needed
};
} // namespace preproc
} // namespace CVC4
#endif /* __CVC4__PREPROC__PREPROCESSING_PASS_H */
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