1 files changed, 43 insertions, 0 deletions
diff --git a/src/interp.h b/src/interp.h
new file mode 100644
index 0000000..6ec1c6d
--- /dev/null
+++ b/src/interp.h
@@ -0,0 +1,43 @@
+#ifndef BAMBOO_LISP_INTERP_H_
+#define BAMBOO_LISP_INTERP_H_
+
+#include <stdbool.h>
+
+#include <algds/hash_table.h>
+
+#include "sexp.h"
+
+typedef struct {
+    bool gc_paused;
+    SExpVector objs;
+    IntVector empty_space;
+    String2IntHashTable symbols;
+    SExpRef stack;
+    SExpRef evaluating;
+    SExpRef top_level;
+    SExpRef nil;
+} Interp;
+
+void Interp_init(Interp *self);
+void Interp_free(Interp *self);
+SExp* Interp_ref(Interp *self, SExpRef ref);
+void Interp_gc(Interp *self);
+void Interp_pause_gc(Interp *self);
+void Interp_restart_gc(Interp *self);
+
+SExpRef new_sexp(Interp *ctx);
+SExpRef new_boolean(Interp *ctx, bool val);
+SExpRef new_char(Interp *ctx, char val);
+SExpRef new_integer(Interp *ctx, int64_t val);
+SExpRef new_real(Interp *ctx, double val);
+SExpRef new_string(Interp *ctx, const char *val);
+SExpRef new_symbol(Interp *ctx, const char *val);
+SExpRef cons(Interp *ctx, SExpRef car, SExpRef cdr);
+SExpRef new_list1(Interp *ctx, SExpRef e1);
+SExpRef new_list2(Interp *ctx, SExpRef e1, SExpRef e2);
+SExpRef new_list3(Interp *ctx, SExpRef e1, SExpRef e2, SExpRef e3);
+SExpRef new_list4(Interp *ctx, SExpRef e1, SExpRef e2, SExpRef e3, SExpRef e4);
+SExpRef new_list5(Interp *ctx, SExpRef e1, SExpRef e2, SExpRef e3, SExpRef e4, SExpRef e5);
+
+#endif
+