cond switch

1 files changed, 32 insertions, 1 deletions

diff --git a/bootstrap/parse.c b/bootstrap/parse.c
index bf6b534..74ab2e2 100644
--- a/bootstrap/parse.c
+++ b/bootstrap/parse.c
@@ -2113,6 +2113,37 @@ psteuswitch(struct parser *P, const struct expr *test) {
 }
 
 static struct stmt
+pstcswitch(struct parser *P) {
+   struct stmt st = {Scswitch};
+   struct tok tok;
+   vec_t(struct cswitchcase) cs = {0};
+   struct blockstmt *f = NULL;
+
+   while (!lexmatch(P, &tok, '}')) {
+      struct cswitchcase c = {0};
+      
+      lexexpect(P, TKkw_case);
+
+      if (lexmatch(P, &tok, TKkw_else)) {
+         if (f)
+            fatal(P, tok.span, "duplicate 'case else' block");
+         f = malloc(sizeof *f);
+         *f = parseblock0(P);
+      } else {
+         c.test = parseexpr(P);
+         lexexpect(P, ';');
+         c.t = parseblock0(P);
+         vec_push(&cs, c);
+      }
+   }
+   
+   vec_slice_cpy(&st.cswitch.cs, &cs);
+   st.cswitch.f = f;
+   return st;
+
+}
+
+static struct stmt
 pstswitch(struct parser *P) {
    struct tok tok;
    struct expr test;
@@ -2126,7 +2157,7 @@ pstswitch(struct parser *P) {
       else
          fatal(P, test.span, "bad switch test expression (%t)", test.ty);
    } else {
-      assert(0 && "NYI");
+      return pstcswitch(P);
    }
 }