View source code
Display the source code in std/traits.d from which this page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using local clone.

Enum member std.traits.isInnerClass

Determines whether T is a class nested inside another class and that T.outer is the implicit reference to the outer class (i.e. outer has not been used as a field or method name)

enum isInnerClass(T) = __traits(isSame, typeof(T.outer), __traits(parent, T)) && !hasOuterMember(__traits(allMembers, T));

Parameters

NameDescription
T type to test

Returns

true if T is a class nested inside another, with the conditions described above; false otherwise

Example

class C
{
    int outer;
}
static assert(!isInnerClass!C);

class Outer1
{
    class Inner1 { }
    class Inner2
    {
        int outer;
    }
}
static assert(isInnerClass!(Outer1.Inner1));
static assert(!isInnerClass!(Outer1.Inner2));

static class Outer2
{
    static class Inner
    {
        int outer;
    }
}
static assert(!isInnerClass!(Outer2.Inner));

Authors

Walter Bright, Tomasz Stachowiak (isExpressions), Andrei Alexandrescu, Shin Fujishiro, Robert Clipsham, David Nadlinger, Kenji Hara, Shoichi Kato

License

Boost License 1.0.