ASTNode.h

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#pragma once
 
#include "llvm/IR/Function.h"
#include "llvm/IR/Module.h"
#include "llvm/IR/Value.h"
#include <memory>
#include <ostream>
#include <string>
#include <vector>
 
// Forward declare the visitor to resolve circular dependency
class ASTVisitor;
 
class ASTNode {
  int line = 0;
  int column = 0;
 
public:
  virtual ~ASTNode() = default;
 
  virtual void accept(ASTVisitor *visitor) = 0;
 
  virtual llvm::Value *codegen() = 0;
 
  virtual std::vector<std::shared_ptr<ASTNode>> getChildren() { return {}; }
  void setLocation(int l, int c) {
    line = l;
    column = c;
  }
  int getLine() { return line; }
  int getColumn() { return column; }
 
  friend std::ostream &operator<<(std::ostream &os, const ASTNode &obj) {
    return obj.print(os);
  }
 
protected:
  virtual std::ostream &print(std::ostream &out) const = 0;
};