fold & more

1 files changed, 15 insertions, 2 deletions

diff --git a/bootstrap/all.h b/bootstrap/all.h
index 6b5fd7d..762e978 100644
--- a/bootstrap/all.h
+++ b/bootstrap/all.h
@@ -237,8 +237,11 @@ struct expr {
    struct span span;
    const struct type *ty;
    union {
-      u64 i; // also for bool lit
-      double f;
+      union {
+         i64 i; // also for bool lit
+         u64 u;
+         double f;
+      };
       struct {
          const char *d;
          u64 n;
@@ -405,6 +408,13 @@ bool typeeql(const struct type *lhs, const struct type *rhs);
 bool completetype(const struct type *);
 void putprimtypes(struct env *);
 void visittypes(void (*visitor)(const struct type *, void *), void *arg);
+const struct type *constify(const struct type *ty);
+const struct type *unconstify(const struct type *ty);
+const struct type *constifychild(const struct type *ty);
+int numtype2rank(const struct type *a);
+const struct type * rank2numtype(int r);
+bool isnumtype(const struct type *a);
+const struct type *typeof2(const struct type *a, const struct type *b);
 
 /** env.c **/
 struct decl *envfind(const struct env *, const char *name);
@@ -419,3 +429,6 @@ void pritoktree(struct toktree);
 
 /** cgen.c **/
 void cgen(FILE *, const struct transunit *);
+
+/** fold.c **/
+int fold(struct expr *);