fix array members
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c3aa2cf750
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@ -613,6 +613,16 @@ unittest { // issue #13
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assert(ta.foo() == "foo");
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}
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unittest
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{
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static union U { int[] a; }
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TaggedAlgebraic!U ta;
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ta = [1,2,3];
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assert(ta.length == 3);
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ta.length = 4;
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//assert(ta.length == 4); //FIXME
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}
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/** Tests if the algebraic type stores a value of a certain data type.
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*/
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@ -778,10 +788,14 @@ private template hasAnyMember(TA, string name)
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template impl(size_t i) {
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static if (i >= Types.length) enum impl = false;
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else static if (!isAggregateType!(Types[i])) enum impl = impl!(i+1);
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else static if (__traits(hasMember, Types[i], name))
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enum impl = true;
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else enum impl = impl!(i+1);
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else {
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alias T = Types[i];
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static if (__traits(hasMember, T, name)
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// work around https://issues.dlang.org/show_bug.cgi?id=20316
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|| (is(T : Q[], Q) && (name == "length" || name == "ptr" || name == "capacity")))
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enum impl = true;
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else enum impl = impl!(i+1);
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}
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}
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alias hasAnyMember = impl!0;
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@ -793,12 +807,15 @@ unittest {
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struct S { int a, b; void foo() {}}
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interface I { void bar() immutable; }
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static union U { int x; S s; Rebindable!(const(I)) i; }
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static union U { int x; S s; Rebindable!(const(I)) i; int[] a; }
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alias TA = TaggedAlgebraic!U;
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static assert(hasAnyMember!(TA, "a"));
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static assert(hasAnyMember!(TA, "b"));
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static assert(hasAnyMember!(TA, "foo"));
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static assert(hasAnyMember!(TA, "bar"));
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static assert(hasAnyMember!(TA, "length"));
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static assert(hasAnyMember!(TA, "ptr"));
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static assert(hasAnyMember!(TA, "capacity"));
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static assert(!hasAnyMember!(TA, "put"));
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static assert(!isOutputRange!(TA, int));
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}
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