Merge pull request #8072 from JinShil/fix_18645

Fix Issue 18645 - DMD segmentation fault (Enum Initialization)
dlang · Mar 25, 2018 · faa6f89 · faa6f89
2 parents cee0643 + 5c11b29
commit faa6f89
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diff --git a/src/dmd/dsymbolsem.d b/src/dmd/dsymbolsem.d
@@ -2039,7 +2039,10 @@ private extern(C++) final class DsymbolSemanticVisitor : Visitor
                 return errorReturn();
 
             Expression eprev = emprev.value;
-            Type tprev = eprev.type.equals(em.ed.type) ? em.ed.memtype : eprev.type;
+            // .toHeadMutable() due to https://issues.dlang.org/show_bug.cgi?id=18645
+            Type tprev = eprev.type.toHeadMutable().equals(em.ed.type.toHeadMutable())
+                ? em.ed.memtype
+                : eprev.type;
 
             Expression emax = tprev.getProperty(em.ed.loc, Id.max, 0);
             emax = emax.expressionSemantic(sc);

diff --git a/test/compilable/test18645.d b/test/compilable/test18645.d
@@ -0,0 +1,9 @@
+// https://issues.dlang.org/show_bug.cgi?id=18645
+
+immutable INIT = 42;
+
+enum A
+{
+    x = INIT,
+    y
+}