#include <stdio.h>
#include <stdlib.h>
#include "trees.h"
#include "globals.h"
#include "symboltable.h"


exprnode *allocate_constexpr(int value){
  exprnode *p_expr = (exprnode *) malloc(sizeof(exprnode));

  if( p_expr != NULL){
    TYPE(p_expr) = CONSTANT;
    CON_VALUE(p_expr) = VALUE;
  }
  return p_expr;
}

exprnode *allocate_symbolexpr(char value){
  exprnode *p_expr = (exprnode *) malloc(sizeof(exprnode));

  if(p_expr != NULL){
    TYPE(p_expr) = VARIABLE;
    SYM_VALUE(p_expr) = value;
  }
  return p_expr;
}

exprnode *allocate_operatorexpr(Operator value){
  exprnode *p_expr = (exprnode *) malloc(sizeof(exprnode));

  if(p_expr != NULL){
    TYPE(p_expr) = OPERATOR;
    OP_VALUE(p_expr) = value;
  }
  return p_expr;
}