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digitalmars.D.bugs - [Issue 16540] New: Attributes do not propagate correctly in lazy


          Issue ID: 16540
           Summary: Attributes do not propagate correctly in lazy params
           Product: D
           Version: D2
          Hardware: All
               URL: http://dlang.org/
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: P3
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: eyal weka.io

// Compiles just fine:

void foo(scope int* delegate() f)  nogc {

void bar()  nogc {
    foo({ return new int(5); });

// Fails:

void foo1(scope lazy int* f)  nogc {

void bar1()  nogc {
    foo(new int(5)); // It does not understand that the new here is wrapped in
an invisible delegate


This is a real problem in the context of an assertion template that wants to
declare itself pure,  nogc, etc -- because it is. Only when the assert fails,
it is GC'd, non-pure, etc, but in those case we abort anyway so all of those
properties are not visible to the caller.

Sep 25 2016