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This commit is contained in:
vms 2021-03-10 15:28:44 +03:00
parent a8fbe2ca6e
commit 9e7d08511a
1 changed files with 11 additions and 10 deletions
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21
crates/wit/src/parsed_type/vector_utils.rs
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@ -20,6 +20,17 @@ use quote::quote;
pub(crate) fn generate_vector_serializer( pub(crate) fn generate_vector_serializer(
value_ty: &ParsedType, value_ty: &ParsedType,
arg_name: &str, arg_name: &str,
) -> proc_macro2::TokenStream {
let serializer_func = generate_vector_serializer_impl(value_ty, arg_name);
quote! {
#serializer_func
}
}
fn generate_vector_serializer_impl(
value_ty: &ParsedType,
arg_name: &str,
) -> proc_macro2::TokenStream { ) -> proc_macro2::TokenStream {
let values_serializer = match value_ty { let values_serializer = match value_ty {
ParsedType::Boolean(_) => { ParsedType::Boolean(_) => {
@ -29,25 +40,21 @@ pub(crate) fn generate_vector_serializer(
} }
ParsedType::I8(_) | ParsedType::U8(_) => { ParsedType::I8(_) | ParsedType::U8(_) => {
quote! { quote! {
let arg = std::mem::ManuallyDrop::new(arg);
(arg.as_ptr() as _, arg.len() as _) (arg.as_ptr() as _, arg.len() as _)
} }
} }
ParsedType::I16(_) | ParsedType::U16(_) => { ParsedType::I16(_) | ParsedType::U16(_) => {
quote! { quote! {
let arg = std::mem::ManuallyDrop::new(arg);
(arg.as_ptr() as _, (2 * arg.len()) as _) (arg.as_ptr() as _, (2 * arg.len()) as _)
} }
} }
ParsedType::I32(_) | ParsedType::U32(_) => { ParsedType::I32(_) | ParsedType::U32(_) => {
quote! { quote! {
let arg = std::mem::ManuallyDrop::new(arg);
(arg.as_ptr() as _, (4 * arg.len()) as _) (arg.as_ptr() as _, (4 * arg.len()) as _)
} }
} }
ParsedType::I64(_) | ParsedType::U64(_) => { ParsedType::I64(_) | ParsedType::U64(_) => {
quote! { quote! {
let arg = std::mem::ManuallyDrop::new(arg);
(arg.as_ptr() as _, (8 * arg.len()) as _) (arg.as_ptr() as _, (8 * arg.len()) as _)
} }
} }
@ -58,7 +65,6 @@ pub(crate) fn generate_vector_serializer(
result.push(value.to_bits()); result.push(value.to_bits());
} }
let result = std::mem::ManuallyDrop::new(result);
(result.as_ptr() as _, (4 * result.len()) as _) (result.as_ptr() as _, (4 * result.len()) as _)
} }
} }
@ -69,7 +75,6 @@ pub(crate) fn generate_vector_serializer(
result.push(value.to_bits()); result.push(value.to_bits());
} }
let result = std::mem::ManuallyDrop::new(result);
(result.as_ptr() as _, (8 * result.len()) as _) (result.as_ptr() as _, (8 * result.len()) as _)
} }
} }
@ -78,12 +83,10 @@ pub(crate) fn generate_vector_serializer(
let mut result: Vec<u32> = Vec::with_capacity(arg.len()); let mut result: Vec<u32> = Vec::with_capacity(arg.len());
for value in arg { for value in arg {
let value = std::mem::ManuallyDrop::new(value);
result.push(value.as_ptr() as _); result.push(value.as_ptr() as _);
result.push(value.len() as _); result.push(value.len() as _);
} }
let result = std::mem::ManuallyDrop::new(result);
(result.as_ptr() as _, (4 * result.len()) as _) (result.as_ptr() as _, (4 * result.len()) as _)
} }
} }
@ -102,7 +105,6 @@ pub(crate) fn generate_vector_serializer(
result.push(size as _); result.push(size as _);
} }
let result = std::mem::ManuallyDrop::new(result);
(result.as_ptr() as _, (4 * result.len()) as _) (result.as_ptr() as _, (4 * result.len()) as _)
} }
} }
@ -115,7 +117,6 @@ pub(crate) fn generate_vector_serializer(
result.push(value.__fce_generated_serialize() as _); result.push(value.__fce_generated_serialize() as _);
} }
let result = std::mem::ManuallyDrop::new(result);
(result.as_ptr() as _, (4 * result.len()) as _) (result.as_ptr() as _, (4 * result.len()) as _)
} }
} }