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-rw-r--r--tests/ui/c-variadic/unsupported-abi.rs123
1 files changed, 123 insertions, 0 deletions
diff --git a/tests/ui/c-variadic/unsupported-abi.rs b/tests/ui/c-variadic/unsupported-abi.rs
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+++ b/tests/ui/c-variadic/unsupported-abi.rs
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+//@ add-core-stubs
+//@ needs-llvm-components: x86
+//@ compile-flags: --target=i686-pc-windows-gnu --crate-type=rlib
+#![no_core]
+#![feature(no_core, lang_items, c_variadic)]
+
+// Test that ABIs for which C-variadics are not supported report an error.
+
+extern crate minicore;
+use minicore::*;
+
+#[rustfmt::skip]
+mod foreign {
+    extern "Rust"  { fn rust_foreign_explicit(_: ...); }
+    //~^ ERROR C-variadic functions with the "Rust" calling convention are not supported
+    extern "C"  { fn c_foreign(_: ...); }
+    extern "C-unwind"  { fn c_unwind_foreign(_: ...); }
+    extern "cdecl"  { fn cdecl_foreign(_: ...); }
+    extern "cdecl-unwind"  { fn cdecl_unwind_foreign(_: ...); }
+    extern "stdcall"  { fn stdcall_foreign(_: ...); }
+    //~^ ERROR C-variadic functions with the "stdcall" calling convention are not supported
+    extern "stdcall-unwind"  { fn stdcall_unwind_foreign(_: ...); }
+    //~^ ERROR C-variadic functions with the "stdcall-unwind" calling convention are not supported
+    extern "thiscall"  { fn thiscall_foreign(_: ...); }
+    //~^ ERROR C-variadic functions with the "thiscall" calling convention are not supported
+    extern "thiscall-unwind"  { fn thiscall_unwind_foreign(_: ...); }
+    //~^ ERROR C-variadic functions with the "thiscall-unwind" calling convention are not supported
+}
+
+#[lang = "va_list"]
+struct VaList(*mut u8);
+
+unsafe fn rust_free(_: ...) {}
+//~^ ERROR `...` is not supported for non-extern functions
+unsafe extern "Rust" fn rust_free_explicit(_: ...) {}
+//~^ ERROR `...` is not supported for `extern "Rust"` functions
+
+unsafe extern "C" fn c_free(_: ...) {}
+unsafe extern "C-unwind" fn c_unwind_free(_: ...) {}
+
+unsafe extern "cdecl" fn cdecl_free(_: ...) {}
+//~^ ERROR `...` is not supported for `extern "cdecl"` functions
+unsafe extern "cdecl-unwind" fn cdecl_unwind_free(_: ...) {}
+//~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
+unsafe extern "stdcall" fn stdcall_free(_: ...) {}
+//~^ ERROR `...` is not supported for `extern "stdcall"` functions
+unsafe extern "stdcall-unwind" fn stdcall_unwind_free(_: ...) {}
+//~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
+unsafe extern "thiscall" fn thiscall_free(_: ...) {}
+//~^ ERROR `...` is not supported for `extern "thiscall"` functions
+unsafe extern "thiscall-unwind" fn thiscall_unwind_free(_: ...) {}
+//~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
+
+struct S;
+
+impl S {
+    unsafe fn rust_method(_: ...) {}
+    //~^ ERROR `...` is not supported for non-extern functions
+    unsafe extern "Rust" fn rust_method_explicit(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "Rust"` functions
+
+    unsafe extern "C" fn c_method(_: ...) {}
+    unsafe extern "C-unwind" fn c_unwind_method(_: ...) {}
+
+    unsafe extern "cdecl" fn cdecl_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "cdecl"` functions
+    unsafe extern "cdecl-unwind" fn cdecl_unwind_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
+    unsafe extern "stdcall" fn stdcall_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "stdcall"` functions
+    unsafe extern "stdcall-unwind" fn stdcall_unwind_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
+    unsafe extern "thiscall" fn thiscall_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "thiscall"` functions
+    unsafe extern "thiscall-unwind" fn thiscall_unwind_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
+}
+
+trait T {
+    unsafe fn rust_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for non-extern functions
+    unsafe extern "Rust" fn rust_trait_method_explicit(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "Rust"` functions
+
+    unsafe extern "C" fn c_trait_method(_: ...) {}
+    unsafe extern "C-unwind" fn c_unwind_trait_method(_: ...) {}
+
+    unsafe extern "cdecl" fn cdecl_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "cdecl"` functions
+    unsafe extern "cdecl-unwind" fn cdecl_unwind_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
+    unsafe extern "stdcall" fn stdcall_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "stdcall"` functions
+    unsafe extern "stdcall-unwind" fn stdcall_unwind_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
+    unsafe extern "thiscall" fn thiscall_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "thiscall"` functions
+    unsafe extern "thiscall-unwind" fn thiscall_unwind_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
+}
+
+impl T for S {
+    unsafe fn rust_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for non-extern functions
+    unsafe extern "Rust" fn rust_trait_method_explicit(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "Rust"` functions
+
+    unsafe extern "C" fn c_trait_method(_: ...) {}
+    unsafe extern "C-unwind" fn c_unwind_trait_method(_: ...) {}
+
+    unsafe extern "cdecl" fn cdecl_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "cdecl"` functions
+    unsafe extern "cdecl-unwind" fn cdecl_unwind_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "cdecl-unwind"` functions
+    unsafe extern "stdcall" fn stdcall_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "stdcall"` functions
+    unsafe extern "stdcall-unwind" fn stdcall_unwind_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "stdcall-unwind"` functions
+    unsafe extern "thiscall" fn thiscall_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "thiscall"` functions
+    unsafe extern "thiscall-unwind" fn thiscall_unwind_trait_method(_: ...) {}
+    //~^ ERROR `...` is not supported for `extern "thiscall-unwind"` functions
+}