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c-variadic: test that unsupported c-variadic ABIs are reported correctly
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‎tests/ui/c-variadic/unsupported-abi.rs‎

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//@ add-core-stubs
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//@ needs-llvm-components: x86
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//@ compile-flags: --target=i686-pc-windows-gnu --crate-type=rlib
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#![no_core]
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#![feature(no_core, lang_items, c_variadic)]
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// Test that ABIs for which C-variadics are not supported report an error.
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extern crate minicore;
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use minicore::*;
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#[rustfmt::skip]
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mod foreign {
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extern "Rust" { fn rust_foreign_explicit(_: ...); }
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//~^ ERROR C-variadic functions with the "Rust" calling convention are not supported
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extern "C" { fn c_foreign(_: ...); }
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extern "C-unwind" { fn c_unwind_foreign(_: ...); }
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extern "cdecl" { fn cdecl_foreign(_: ...); }
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extern "cdecl-unwind" { fn cdecl_unwind_foreign(_: ...); }
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extern "stdcall" { fn stdcall_foreign(_: ...); }
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//~^ ERROR C-variadic functions with the "stdcall" calling convention are not supported
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extern "stdcall-unwind" { fn stdcall_unwind_foreign(_: ...); }
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//~^ ERROR C-variadic functions with the "stdcall-unwind" calling convention are not supported
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extern "thiscall" { fn thiscall_foreign(_: ...); }
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//~^ ERROR C-variadic functions with the "thiscall" calling convention are not supported
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extern "thiscall-unwind" { fn thiscall_unwind_foreign(_: ...); }
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//~^ ERROR C-variadic functions with the "thiscall-unwind" calling convention are not supported
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}
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#[lang = "va_list"]
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struct VaList(*mut u8);
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unsafe fn rust_free(_: ...) {}
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//~^ ERROR `...` is not supported for non-extern functions
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unsafe extern "Rust" fn rust_free_explicit(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "Rust"` functions
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unsafe extern "C" fn c_free(_: ...) {}
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unsafe extern "C-unwind" fn c_unwind_free(_: ...) {}
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unsafe extern "cdecl" fn cdecl_free(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl"` functions
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unsafe extern "cdecl-unwind" fn cdecl_unwind_free(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
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unsafe extern "stdcall" fn stdcall_free(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall"` functions
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unsafe extern "stdcall-unwind" fn stdcall_unwind_free(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
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unsafe extern "thiscall" fn thiscall_free(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall"` functions
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unsafe extern "thiscall-unwind" fn thiscall_unwind_free(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
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struct S;
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impl S {
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unsafe fn rust_method(_: ...) {}
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//~^ ERROR `...` is not supported for non-extern functions
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unsafe extern "Rust" fn rust_method_explicit(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "Rust"` functions
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unsafe extern "C" fn c_method(_: ...) {}
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unsafe extern "C-unwind" fn c_unwind_method(_: ...) {}
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unsafe extern "cdecl" fn cdecl_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl"` functions
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unsafe extern "cdecl-unwind" fn cdecl_unwind_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
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unsafe extern "stdcall" fn stdcall_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall"` functions
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unsafe extern "stdcall-unwind" fn stdcall_unwind_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
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unsafe extern "thiscall" fn thiscall_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall"` functions
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unsafe extern "thiscall-unwind" fn thiscall_unwind_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
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}
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trait T {
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unsafe fn rust_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for non-extern functions
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unsafe extern "Rust" fn rust_trait_method_explicit(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "Rust"` functions
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unsafe extern "C" fn c_trait_method(_: ...) {}
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unsafe extern "C-unwind" fn c_unwind_trait_method(_: ...) {}
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unsafe extern "cdecl" fn cdecl_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl"` functions
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unsafe extern "cdecl-unwind" fn cdecl_unwind_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
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unsafe extern "stdcall" fn stdcall_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall"` functions
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unsafe extern "stdcall-unwind" fn stdcall_unwind_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
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unsafe extern "thiscall" fn thiscall_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall"` functions
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unsafe extern "thiscall-unwind" fn thiscall_unwind_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
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}
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impl T for S {
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unsafe fn rust_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for non-extern functions
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unsafe extern "Rust" fn rust_trait_method_explicit(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "Rust"` functions
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unsafe extern "C" fn c_trait_method(_: ...) {}
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unsafe extern "C-unwind" fn c_unwind_trait_method(_: ...) {}
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unsafe extern "cdecl" fn cdecl_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl"` functions
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unsafe extern "cdecl-unwind" fn cdecl_unwind_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
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unsafe extern "stdcall" fn stdcall_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall"` functions
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unsafe extern "stdcall-unwind" fn stdcall_unwind_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
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unsafe extern "thiscall" fn thiscall_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall"` functions
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unsafe extern "thiscall-unwind" fn thiscall_unwind_trait_method(_: ...) {}
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//~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
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}

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