dmd/compiler/test/fail_compilation/systemvariables_struct.d
Dennis 9b94878c85
Make safe error messages consistent (#20654)
Co-authored-by: Dennis Korpel <dennis@sarc.nl>
2025-01-08 13:46:38 +08:00

60 lines
1.9 KiB
D

/*
REQUIRED_ARGS: -preview=systemVariables
TEST_OUTPUT:
---
fail_compilation/systemvariables_struct.d(31): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(32): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(33): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(36): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(37): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(38): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(54): Error: accessing `@system` field `S2.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(55): Error: accessing `@system` field `S2.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(56): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
fail_compilation/systemvariables_struct.d(57): Error: accessing `@system` field `S.syst` is not allowed in a `@safe` function
---
*/
// http://dlang.org/dips/1035
struct S
{
@system S* syst;
@safe S* safe;
}
void aggregate() @safe
{
S s0;
// write access
s0.syst = null;
__traits(getMember, s0, "syst") = null;
s0.tupleof[0] = null;
// read access
auto a0 = s0.syst;
auto a1 = __traits(getMember, s0, "syst");
auto a2 = s0.tupleof[0];
S s1;
s1 = s0; // allowed
}
struct S2
{
@system S syst;
@safe S safe;
}
@safe S2 gs2;
void aggregate2() @safe
{
gs2.syst.syst = null;
gs2.syst.safe = null;
gs2.safe.syst = null;
gs2.safe.syst.safe = null;
gs2.safe.safe = null; // allowed
}