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35 lines
1.9 KiB
D
35 lines
1.9 KiB
D
/**
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TEST_OUTPUT:
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---
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fail_compilation/named_arguments_overload.d(33): Error: none of the overloads of `snoopy` are callable using argument types `(immutable(S), immutable(T))`
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fail_compilation/named_arguments_overload.d(17): Candidates are: `named_arguments_overload.snoopy(S s, int i = 0, T t = T())`
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fail_compilation/named_arguments_overload.d(18): `named_arguments_overload.snoopy(T t, int i, S s)`
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fail_compilation/named_arguments_overload.d(34): Error: none of the overloads of `snoopy` are callable using argument types `(immutable(T), immutable(S))`
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fail_compilation/named_arguments_overload.d(17): Candidates are: `named_arguments_overload.snoopy(S s, int i = 0, T t = T())`
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fail_compilation/named_arguments_overload.d(18): `named_arguments_overload.snoopy(T t, int i, S s)`
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fail_compilation/named_arguments_overload.d(35): Error: `named_arguments_overload.snoopy` called with argument types `(immutable(S), immutable(T), immutable(int))` matches multiple overloads after qualifier conversion:
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fail_compilation/named_arguments_overload.d(17): `named_arguments_overload.snoopy(S s, int i = 0, T t = T())`
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and:
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fail_compilation/named_arguments_overload.d(18): `named_arguments_overload.snoopy(T t, int i, S s)`
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---
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*/
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char snoopy(S s, int i = 0, T t = T.init) { return 'B'; }
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char snoopy(T t, int i, S s) { return 'A'; }
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struct S { }
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struct T { }
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immutable S s = S.init;
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immutable T t = T.init;
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immutable int i = 0;
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static assert(snoopy(t, i, s ) == 'A');
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static assert(snoopy(s, i, t ) == 'B');
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static assert(snoopy(s:s, t:t ) == 'B');
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static assert(snoopy(t:t, s:s ) == 'B');
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static assert(snoopy(t:t, i, s:s) == 'A');
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static assert(snoopy(s:s, t:t, i ) == 'A');
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immutable err0 = snoopy(s, t); // error, neither A nor B match
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immutable err1 = snoopy(t, s); // error, neither A nor B match
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immutable err2 = snoopy(s:s, t:t, i:i); // error, ambiguous
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