rishi/scryer-prolog
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fix all but {i,u}64

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This commit is contained in:
Bennet Bleßmann
2025-01-22 00:03:18 +01:00
parent 34eab2e73a
commit d2502b0520
2 changed files with 21 additions and 11 deletions
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15
src/ffi.rs
View File

@@ -335,7 +335,7 @@ impl ForeignFunctionTable {
unsafe { unsafe {
macro_rules! call_and_return { macro_rules! call_and_return {
($type:ty) => {{ ($type:ty) => {{
let mut n: Box<u8> = Box::new(0); let mut n: Box<$type> = Box::new(0);
libffi::raw::ffi_call( libffi::raw::ffi_call(
&mut function_impl.cif, &mut function_impl.cif,
Some(*function_impl.code_ptr.as_safe_fun()), Some(*function_impl.code_ptr.as_safe_fun()),
@@ -367,7 +367,18 @@ impl ForeignFunctionTable {
)) ))
} }
libffi::raw::FFI_TYPE_SINT64 => call_and_return!(i64), libffi::raw::FFI_TYPE_SINT64 => call_and_return!(i64),
libffi::raw::FFI_TYPE_POINTER => call_and_return!(*mut c_void), libffi::raw::FFI_TYPE_POINTER => {
let mut n: Box<*mut c_void> = Box::new(std::ptr::null_mut());
libffi::raw::ffi_call(
&mut function_impl.cif,
Some(*function_impl.code_ptr.as_safe_fun()),
&mut *n as *mut _ as *mut c_void,
pointer_args.pointers.as_mut_ptr(),
);
Ok(Value::Int(
i64::try_from(*n as isize).map_err(|_| FFIError::ValueDontFit)?,
))
}
libffi::raw::FFI_TYPE_FLOAT => { libffi::raw::FFI_TYPE_FLOAT => {
let mut n: Box<f32> = Box::new(0.0); let mut n: Box<f32> = Box::new(0.0);
libffi::raw::ffi_call( libffi::raw::ffi_call(

17
tests/scryer/ffi.rs
View File

@@ -163,26 +163,25 @@ fn ffi_return_values() {
// but there is currently no other easy way to get the dynamic library file path as an input into a load_module_test test // but there is currently no other easy way to get the dynamic library file path as an input into a load_module_test test
std::env::set_var("ffi_return_values_LIB", dynlib_path); std::env::set_var("ffi_return_values_LIB", dynlib_path);
// i8- -42,u8-73,i16- -3054,u16-49374,i32- -200211438,u32-3235819520,i64- -859901580039547648,u64- 859901580039547648,f32-3.1415927410125732,f64-6.283185307179586
let expected = format!( let expected = format!(
"i8- {},u8-{},i16- {},u16-{},i32- {},u32-{},i64- {},u64- {},f32-{},f64-{}", "i8- {},u8-{},i16- {},u16-{},i32- {},u32-{},i64-{},u64- {},f32-{},f64-{}",
-42, -42,
73, 73,
-0xBEE, -0xBEE,
0xC0DE, 0xC0DE,
-0xBEEFBEE, -0xBEEFBEE,
0xC0DEB000u32, 0xC0DEB000u32,
-0xBEEFBEE5C0DEB00i64, // actual: 00010001 00000100 00010001 10100011 11110010 00010101 00000000
0xBEEFBEE5C0DEB00u64, // expected: 11110100 00010001 00000100 00010001 10100011 11110010 00010101 00000000
4789548415587584u64, // -0xBEEFBEE5C0DEB00i64,
// actual: 11111111 11101110 11111011 11101110 01011100 00001101 11101011 00000000
// expected: 1011 11101110 11111011 11101110 01011100 00001101 11101011 00000000
-4789548415587584i64, // 0xBEEFBEE5C0DEB00u64,
std::f32::consts::PI as f64, std::f32::consts::PI as f64,
std::f64::consts::TAU std::f64::consts::TAU
); );
// FIXME all but u8, f32 and f64 are wrong!?!? load_module_test("tests-pl/ffi_return_values.pl", expected.as_str());
load_module_test(
"tests-pl/ffi_return_values.pl",
"i8-214,u8-73,i16-18,u16-222,i32-18,u32-0,i64-0,u64- -4789548415587584,f32-3.1415927410125732,f64-6.283185307179586",
);
} }
#[test] #[test]