[Issue 14138] New: std.parallelism.task breaks @safety

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14138

          Issue ID: 14138
           Summary: std.parallelism.task breaks @safety
           Product: D
           Version: D2
          Hardware: x86_64
                OS: Linux
            Status: NEW
          Keywords: safe
          Severity: enhancement
          Priority: P1
         Component: Phobos
          Assignee: nobody at puremagic.com
          Reporter: code at klickverbot.at

---
struct Oops {
    int convert() {
        *cast(int*)0xcafebabe = 0xdeadbeef;
        return 0;
    }
    alias convert this;
}

void main() @safe {
    import std.parallelism;

    static void foo(int) @safe {}

    auto t = task(&foo, Oops.init);
    // or: auto t = scopedTask(&foo, Oops.init);

    taskPool.put(t);
}
---

Tested with current Git master (4de96a06, to-be 2.067), but looks like the
issues has been present since the initial merge of std.parallelism.

Again a case of @trusted used on a template function without sufficient
constraints.

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