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digitalmars.D.bugs - [Issue 20873] New: std.parallelism.task mistakenly trusts


          Issue ID: 20873
           Summary: std.parallelism.task mistakenly trusts user-supplied
                    implicit-conversion routines
           Product: D
           Version: D2
          Hardware: x86
                OS: Mac OS X
            Status: NEW
          Keywords: safe
          Severity: enhancement
          Priority: P1
         Component: phobos
          Assignee: nobody puremagic.com
          Reporter: pro.mathias.lang gmail.com

import std.parallelism;

void myTask (int a)  safe {}
struct Deceptive
    public int deception ()  system
        int* ptr = cast(int*) 42;
        return *ptr;
    alias deception this;

void main ()  safe
    Deceptive d;
    auto t = task(&myTask, d);

Compiles and crash with DIP1000.

May 28 2020