some fixes + .[] syntax sugar

1 files changed, 7 insertions, 0 deletions

diff --git a/src/parse.cff b/src/parse.cff
index f03e13a..d4b8b7a 100644
--- a/src/parse.cff
+++ b/src/parse.cff
@@ -1658,6 +1658,13 @@ fn pexpostfix(P *Parser) Expr {
             let enumty = ty.u.Agg.enumty;
             ex = { tok.loc, ty.konst ? constify(enumty) : enumty, :EUTag(exprdup(P.alloc, ex)) };
 
+         case lexpeek(P).t == '[';
+            // sugar: expr.[idx] -> (*expr)[idx]
+            if !ex.ty->is(:Ptr) {
+               fatal(P, ex.loc, "`.[]' operator takes a pointer (got %t)", ex.ty);
+            }
+            ex = { ex.loc, ex.ty.u.Ptr, .u: :UnOp { :deref, exprdup(P.alloc, ex) }};
+
          case else;
             lexexpects(P, :ident, "field name");
          }