[thirdparty/gcc.git] / gcc / testsuite / gdc.test / fail_compilation / diag13884.d

/*
TEST_OUTPUT:
---
fail_compilation/diag13884.d(14): Error: functions cannot return a tuple
fail_compilation/diag13884.d(21):        instantiated from here: `MapResult!((t) => t.tupleof, Foo[])`
fail_compilation/diag13884.d(14):        instantiated from here: `map!(Foo[])`
---
*/

struct Foo { int x; }

void main()
{
    [Foo(1)].map!(t => t.tupleof);
}

template map(fun...)
{
    auto map(Range)(Range r)
    {
        return MapResult!(fun, Range)(r);
    }
}

struct MapResult(alias fun, R)
{
    R _input;

    @property auto ref front()
    {
        return fun(_input[0]);
    }

}
Commit	Line	Data
b4c522fa IB	1	/*
	2	TEST_OUTPUT:
	3	---
	4	fail_compilation/diag13884.d(14): Error: functions cannot return a tuple
5fee5ec3 IB	5	fail_compilation/diag13884.d(21): instantiated from here: `MapResult!((t) => t.tupleof, Foo[])`
5fee5ec3 IB	6	fail_compilation/diag13884.d(14): instantiated from here: `map!(Foo[])`
b4c522fa IB	7	---
	8	*/
	9
	10	struct Foo { int x; }
	11
	12	void main()
	13	{
	14	[Foo(1)].map!(t => t.tupleof);
	15	}
	16
	17	template map(fun...)
	18	{
	19	auto map(Range)(Range r)
	20	{
	21	return MapResult!(fun, Range)(r);
	22	}
	23	}
	24
	25	struct MapResult(alias fun, R)
	26	{
	27	R _input;
	28
	29	@property auto ref front()
	30	{
	31	return fun(_input[0]);
	32	}
	33
	34	}