#include "consts.h"
#include "eval.h"
#include "builtin.h"
#include "exc.h"
#include "gc.h"
#include <cstdio>
static const int EVAL_STACK_SIZE = 262144;
extern Pair *empty_list;
/** The stack for evaluating expressions */
EvalObj *eval_stack[EVAL_STACK_SIZE];
/** Add all kinds of built-in facilities before the evaluation */
void Evaluator::add_builtin_routines() {
#define ADD_ENTRY(name, rout) \
do { \
SymObj *tmp = new SymObj(name); \
envt->add_binding(tmp, rout); \
delete tmp; \
} while (0)
#define ADD_BUILTIN_PROC(name, rout) \
ADD_ENTRY(name, new BuiltinProcObj(rout, name))
ADD_ENTRY("if", new SpecialOptIf());
ADD_ENTRY("lambda", new SpecialOptLambda());
ADD_ENTRY("define", new SpecialOptDefine());
ADD_ENTRY("set!", new SpecialOptSet());
ADD_ENTRY("quote", new SpecialOptQuote());
ADD_ENTRY("eval", new SpecialOptEval());
ADD_ENTRY("and", new SpecialOptAnd());
ADD_ENTRY("or", new SpecialOptOr());
ADD_ENTRY("apply", new SpecialOptApply());
ADD_ENTRY("delay", new SpecialOptDelay());
ADD_ENTRY("force", new SpecialOptForce());
ADD_BUILTIN_PROC("+", num_add);
ADD_BUILT