Bug 6141 – Bad code with ref-foreach and closures

void takeADelegate(void delegate()) {} void main() { auto items = new int[1]; items[0] = 17; foreach (ref item; items) { // both asserts fail assert(item == 17); assert(&item == items.ptr); takeADelegate({ auto x = &item; }); } }

Hit this again. Raising priority, since it causes "mysterious crashes".

Looks like the same issue: --- void main() { foreach(ref val; [3]) { auto del = { int j = val; }; assert(&val != null); // Assertion failure assert(val == 3); } } --- and --- void f(lazy int) { } void main() { int i = 0; auto del = { int j = i; }; foreach(ref val; [3]) { f(val); assert(&val != null); // Assertion failure assert(val == 3); } } ---

Commits pushed to master at https://github.com/D-Programming-Language/dmd https://github.com/D-Programming-Language/dmd/commit/26870291ebcb9512bc3c7a3099719b3ef8596bd7 fix Issue 6141 - Bad code with ref-foreach and closures https://github.com/D-Programming-Language/dmd/commit/8fc3e4b59bf5786accee257d301ca8de8cf8a277 Merge pull request #1272 from 9rnsr/fix8526 Issue 8526 & 6141 - DMD 2.060 regression: anonymous delegate call in foreach loop