[Issue 13434] [ICE] indexing array with empty tuple causes dmd segfault

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=13434

hsteoh at quickfur.ath.cx changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |patch

--- Comment #1 from hsteoh at quickfur.ath.cx ---
This patch fixes it:
-------
diff --git a/src/expression.c b/src/expression.c
index 9b8b80b..650f67a 100644
--- a/src/expression.c
+++ b/src/expression.c
@@ -10336,8 +10336,11 @@ Expression *IndexExp::semantic(Scope *sc)
     if (t1->ty == Ttuple) sc = sc->endCTFE();
     if (e2->type == Type::terror)
         return new ErrorExp();
-    if (e2->type->ty == Ttuple && ((TupleExp *)e2)->exps->dim == 1) // bug
4444 fix
+    if (e2->type->ty == Ttuple && ((TupleExp *)e2)->exps &&
+        ((TupleExp *)e2)->exps->dim == 1) // bug 4444 fix
+    {
         e2 = (*((TupleExp *)e2)->exps)[0];
+    }

     if (t1->ty == Tsarray || t1->ty == Tarray || t1->ty == Ttuple)
         sc = sc->pop();
-------

Will submit this as a PR on Monday once internet connectivity from my home PC
is restored.

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