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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /src/test/run-make-fulldeps/extern-fn-generic | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'src/test/run-make-fulldeps/extern-fn-generic')
4 files changed, 58 insertions, 0 deletions
diff --git a/src/test/run-make-fulldeps/extern-fn-generic/Makefile b/src/test/run-make-fulldeps/extern-fn-generic/Makefile new file mode 100644 index 000000000..cf897dba1 --- /dev/null +++ b/src/test/run-make-fulldeps/extern-fn-generic/Makefile @@ -0,0 +1,6 @@ +-include ../tools.mk + +all: $(call NATIVE_STATICLIB,test) + $(RUSTC) testcrate.rs + $(RUSTC) test.rs + $(call RUN,test) || exit 1 diff --git a/src/test/run-make-fulldeps/extern-fn-generic/test.c b/src/test/run-make-fulldeps/extern-fn-generic/test.c new file mode 100644 index 000000000..a8504ff2a --- /dev/null +++ b/src/test/run-make-fulldeps/extern-fn-generic/test.c @@ -0,0 +1,16 @@ +#include <stdint.h> + +typedef struct TestStruct { + uint8_t x; + int32_t y; +} TestStruct; + +typedef int callback(TestStruct s); + +uint32_t call(callback *c) { + TestStruct s; + s.x = 'a'; + s.y = 3; + + return c(s); +} diff --git a/src/test/run-make-fulldeps/extern-fn-generic/test.rs b/src/test/run-make-fulldeps/extern-fn-generic/test.rs new file mode 100644 index 000000000..c9baa4898 --- /dev/null +++ b/src/test/run-make-fulldeps/extern-fn-generic/test.rs @@ -0,0 +1,20 @@ +extern crate testcrate; + +extern "C" fn bar<T>(ts: testcrate::TestStruct<T>) -> T { + ts.y +} + +#[link(name = "test", kind = "static")] +extern "C" { + fn call(c: extern "C" fn(testcrate::TestStruct<i32>) -> i32) -> i32; +} + +fn main() { + // Let's test calling it cross crate + let back = unsafe { testcrate::call(testcrate::foo::<i32>) }; + assert_eq!(3, back); + + // And just within this crate + let back = unsafe { call(bar::<i32>) }; + assert_eq!(3, back); +} diff --git a/src/test/run-make-fulldeps/extern-fn-generic/testcrate.rs b/src/test/run-make-fulldeps/extern-fn-generic/testcrate.rs new file mode 100644 index 000000000..39f76e59c --- /dev/null +++ b/src/test/run-make-fulldeps/extern-fn-generic/testcrate.rs @@ -0,0 +1,16 @@ +#![crate_type = "lib"] + +#[repr(C)] +pub struct TestStruct<T> { + pub x: u8, + pub y: T, +} + +pub extern "C" fn foo<T>(ts: TestStruct<T>) -> T { + ts.y +} + +#[link(name = "test", kind = "static")] +extern "C" { + pub fn call(c: extern "C" fn(TestStruct<i32>) -> i32) -> i32; +} |