change lambda syntax {[a] x} -> $[a]{x}

1 files changed, 5 insertions, 3 deletions

diff --git a/pez.c b/pez.c
index e12ad46..52744ad 100644
--- a/pez.c
+++ b/pez.c
@@ -3039,6 +3039,8 @@ lambdaexpr(Comp *cm, const char *name)
         }
     }
 
+   ETRY(expectspchr(cm, '{'));
+
     ETRY(block(cm, '}'));
     ETRY(compop(cm, Oret));
     ETRY(fincompfn(cm));
@@ -3268,7 +3270,7 @@ primaryexpr(Comp *cm)
         }
         return 1;
 
-    case '{':
+    case '$':
         return lambdaexpr(cm, NULL);
 
     case '#':
@@ -4036,7 +4038,7 @@ decl(Comp *cm, struct local **pl, bool nofold)
         return comperr(cm, c, "expected ':' or '='"), 0;
     }
 
-    if (matchspchr(cm, '{')) {
+    if (matchspchr(cm, '$')) {
         // named fn, possibly recursive
         TRY(l = addlocal(cm, &idx, name, mutable, cm->has_k && !mutable, cm->k));
         TRY(lambdaexpr(cm, name));
@@ -4215,7 +4217,7 @@ stmt(Comp *cm)
         TRY(expectspchr(cm, '='));
         TRY(box_str(cm->cx, &key, name, strlen(name)));
         TRY(compconst(cm, key));
-        if (matchspchr(cm, '{')) {
+        if (matchspchr(cm, '$')) {
             TRY(lambdaexpr(cm, name)); // named fn
         } else {
             TRY(expr(cm)); // initializer