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#pragma once
#include "func/pred.hpp"
namespace omnigraph {
template<class Graph>
class VertexCondition : public func::AbstractPredicate<typename Graph::VertexId> {
typedef typename Graph::VertexId VertexId;
const Graph &g_;
protected:
VertexCondition(const Graph &g)
: g_(g) {
}
const Graph &g() const {
return g_;
}
};
template<class Graph>
class CompressCondition : public VertexCondition<Graph> {
typedef typename Graph::VertexId VertexId;
public:
CompressCondition(const Graph &g) :
VertexCondition<Graph>(g) {
}
bool Check(VertexId v) const override {
return this->g().CanCompressVertex(v);
}
};
template<class Graph>
class IsolatedVertexCondition : public VertexCondition<Graph> {
typedef typename Graph::VertexId VertexId;
public:
IsolatedVertexCondition(const Graph& g) :
VertexCondition<Graph>(g) {
}
bool Check(VertexId v) const override {
return this->g().IsDeadStart(v) && this->g().IsDeadEnd(v);
}
};
template<class Graph>
class TerminalVertexCondition : public VertexCondition<Graph> {
typedef typename Graph::VertexId VertexId;
public:
TerminalVertexCondition(const Graph& g) :
VertexCondition<Graph>(g) {
}
bool Check(VertexId v) const override {
return this->g().IncomingEdgeCount(v) + this->g().OutgoingEdgeCount(v) == 1;
}
};
}
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