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digitalmars.D.bugs - [Issue 22075] New: [Reg 2.068] "AA key type S should have 'size_t


          Issue ID: 22075
           Summary: [Reg 2.068] "AA key type S should have 'size_t
                    toHash() const nothrow  safe' if opEquals defined" is
                    not triggered if any field of S has its own 'alias
           Product: D
           Version: D2
          Hardware: All
                OS: All
            Status: NEW
          Severity: regression
          Priority: P1
         Component: dmd
          Assignee: nobody puremagic.com
          Reporter: n8sh.secondary hotmail.com


struct HasAliasThis { int a; alias a this; }

struct LacksAliasThis { int a; }

struct S(T)
    private T a;

    bool opEquals(const S rhs) const  nogc nothrow  safe
        return rhs is this;

int[S!HasAliasThis] aa1; // Compiles but should not.
int[S!LacksAliasThis] aa2; // Correctly fails to compile with "Error: AA key
     // type `S` should have `extern (D) size_t toHash() const nothrow  safe`
     // if `opEquals` defined"".

void main() {}

Jun 22 2021