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This commit is contained in:
vms 2021-04-21 14:56:21 +03:00
parent d5a6503842
commit 47f0443397
7 changed files with 45 additions and 25 deletions
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33
crates/main/src/export_allocator.rs
View File

@ -32,21 +32,30 @@ pub unsafe fn allocate(elem_count: usize, elem_ty: usize) -> usize {
allocated_mem
}
macro_rules! alloc {
($ty:ty, $elem_count:ident) => {{
let vec = Vec::<$ty>::with_capacity($elem_count);
let offset = vec.as_ptr() as usize;
std::mem::forget(vec);
offset
}};
}
fn allocate_impl(elem_count: usize, elem_ty: usize) -> usize {
// TODO: handle OOM
// Such allocation scheme is needed to deal with layout
match elem_ty {
0 => Vec::<u8>::with_capacity(elem_count).as_ptr() as usize, // for booleans
1 => Vec::<u8>::with_capacity(elem_count).as_ptr() as usize,
2 => Vec::<u16>::with_capacity(elem_count).as_ptr() as usize,
3 => Vec::<u32>::with_capacity(elem_count).as_ptr() as usize,
4 => Vec::<u64>::with_capacity(elem_count).as_ptr() as usize,
5 => Vec::<i8>::with_capacity(elem_count).as_ptr() as usize,
6 => Vec::<i16>::with_capacity(elem_count).as_ptr() as usize,
7 => Vec::<i32>::with_capacity(elem_count).as_ptr() as usize,
8 => Vec::<i64>::with_capacity(elem_count).as_ptr() as usize,
9 => Vec::<f32>::with_capacity(elem_count).as_ptr() as usize,
10 => Vec::<f64>::with_capacity(elem_count).as_ptr() as usize,
_ => Vec::<u8>::with_capacity(0).as_ptr() as usize, // it'll allocate 0 bytes
0 => alloc!(u8, elem_count), // for booleans
1 => alloc!(u8, elem_count),
2 => alloc!(u16, elem_count),
3 => alloc!(u32, elem_count),
4 => alloc!(u64, elem_count),
5 => alloc!(i8, elem_count),
6 => alloc!(i16, elem_count),
7 => alloc!(i32, elem_count),
8 => alloc!(i64, elem_count),
9 => alloc!(f32, elem_count),
10 => alloc!(f64, elem_count),
_ => alloc!(u8, 0), // it'll allocate 0 bytes
}
}

6
crates/wit/src/parsed_type/vector_utils.rs
View File

@ -122,7 +122,8 @@ pub(crate) fn generate_vector_deserializer(
}
ParsedType::Utf8Str(_) | ParsedType::Utf8String(_) => {
quote! {
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
let vec_passing_size = 2;
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut arg = arg.into_iter();
let mut result = Vec::with_capacity(arg.len() / 2);
@ -145,7 +146,8 @@ pub(crate) fn generate_vector_deserializer(
quote! {
#inner_vector_deserializer
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
let vec_passing_size = 2;
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();

4
crates/wit/src/token_stream_generator/record_generator/field_values_builder.rs
View File

@ -257,7 +257,7 @@ impl FieldValuesBuilder {
};
};
self.value_id += 2 * 4;
self.value_id += 2 * std::mem::size_of::<u32>();
result
}
@ -292,7 +292,7 @@ impl FieldValuesBuilder {
let #field = unsafe { #generated_der_ident(offset as _, size as _) };
};
self.value_id += 2 * 4;
self.value_id += 2 * std::mem::size_of::<u32>();
result
}

9
crates/wit/tests/generation_tests/exports/arrays/expanded.rs
View File

@ -22,8 +22,9 @@ pub unsafe fn __fce_generated_wrapper_func_inner_arrays_1(arg_0: u32, arg_1: u32
) -> Vec<u8> {
Vec::from_raw_parts(offset as _, size as _, size as _)
}
let vec_passing_size = 2;
let mut arg: Vec<u32> =
Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {
@ -36,8 +37,9 @@ pub unsafe fn __fce_generated_wrapper_func_inner_arrays_1(arg_0: u32, arg_1: u32
}
result
}
let vec_passing_size = 2;
let mut arg: Vec<u32> =
Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {
@ -48,7 +50,8 @@ pub unsafe fn __fce_generated_wrapper_func_inner_arrays_1(arg_0: u32, arg_1: u32
}
result
}
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
let vec_passing_size = 2;
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {

6
crates/wit/tests/generation_tests/exports/refs/expanded.rs
View File

@ -9,8 +9,9 @@ pub fn test_array_refs(arg: &Vec<Vec<String>>) -> &Vec<Vec<Vec<Vec<String>>>> {
pub unsafe fn __fce_generated_wrapper_func_test_array_refs(arg_0: u32, arg_1: u32) {
unsafe fn __fce_generated_vec_deserializer_0(offset: u32, size: u32) -> Vec<Vec<String>> {
unsafe fn __fce_generated_vec_deserializer_0_String(offset: u32, size: u32) -> Vec<String> {
let vec_passing_size = 2;
let mut arg: Vec<u32> =
Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut arg = arg.into_iter();
let mut result = Vec::with_capacity(arg.len() / 2);
while let Some(offset) = arg.next() {
@ -20,7 +21,8 @@ pub unsafe fn __fce_generated_wrapper_func_test_array_refs(arg_0: u32, arg_1: u3
}
result
}
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
let vec_passing_size = 2;
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {

3
crates/wit/tests/generation_tests/records/call_parameters/expanded.rs
View File

@ -161,8 +161,9 @@ impl CallParameters {
}
result
}
let vec_passing_size = 2;
let mut arg: Vec<u32> =
Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {

9
crates/wit/tests/generation_tests/records/use_as_type/expanded.rs
View File

@ -31,8 +31,9 @@ pub unsafe fn __fce_generated_wrapper_func_inner_arrays_2(arg_0: u32, arg_1: u32
}
result
}
let vec_passing_size = 2;
let mut arg: Vec<u32> =
Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {
@ -42,8 +43,9 @@ pub unsafe fn __fce_generated_wrapper_func_inner_arrays_2(arg_0: u32, arg_1: u32
}
result
}
let vec_passing_size = 2;
let mut arg: Vec<u32> =
Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {
@ -56,7 +58,8 @@ pub unsafe fn __fce_generated_wrapper_func_inner_arrays_2(arg_0: u32, arg_1: u32
}
result
}
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (2 * size) as _, (2 * size) as _);
let vec_passing_size = 2;
let mut arg: Vec<u32> = Vec::from_raw_parts(offset as _, (vec_passing_size * size) as _, (vec_passing_size * size) as _);
let mut result = Vec::with_capacity(arg.len());
let mut arg = arg.into_iter();
while let Some(offset) = arg.next() {