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use proc_macro_error::abort;
use quote::{format_ident, quote, quote_spanned, ToTokens};
use syn::spanned::Spanned;
// use syn::parse_quote;
pub(crate) struct FieldInfo {
fields: Vec<(syn::Field, bool)>,
}
impl FieldInfo {
pub(crate) fn new() -> Self {
Self { fields: Vec::new() }
}
pub(crate) fn add_field(&mut self, field: syn::Field, darc_iter: bool) {
self.fields.push((field, darc_iter));
}
pub(crate) fn ser(&self) -> proc_macro2::TokenStream {
let mut ser = quote! {};
for (field, darc_iter) in &self.fields {
match &field.ty {
syn::Type::Path(_) => {
ser.extend(self.ser_path(field, *darc_iter, false));
}
syn::Type::Tuple(ty) => {
ser.extend(self.ser_tuple(field, ty, false));
}
_ => {
abort!(
field.span(),
"unsupported type in Remote Active Message {:?}",
field.ty
);
}
}
}
ser
}
pub(crate) fn ser_as_vecs(&self) -> proc_macro2::TokenStream {
let mut ser = quote! {};
for (field, darc_iter) in &self.fields {
match &field.ty {
syn::Type::Path(_) => {
ser.extend(self.ser_path(field, *darc_iter, true));
}
syn::Type::Tuple(ty) => {
ser.extend(self.ser_tuple(field, ty, true));
}
_ => {
abort!(
field.span(),
"unsupported type in Remote Active Message {:?}",
field.ty
);
}
}
}
ser
}
fn ser_path(
&self,
field: &syn::Field,
darc_iter: bool,
as_vecs: bool,
) -> proc_macro2::TokenStream {
let field_name = field.ident.as_ref().unwrap();
if as_vecs && darc_iter {
//both
quote! {
for e in (&(self.#field_name)).iter(){
for d in e.iter(){
d.ser(num_pes,darcs);
}
}
}
} else if as_vecs ^ darc_iter {
//either or
quote! {
for e in (&(self.#field_name)).iter(){
e.ser(num_pes,darcs);
}
}
} else {
//neither
quote! {
(&(self.#field_name)).ser(num_pes,darcs);
}
}
}
fn ser_tuple(
&self,
field: &syn::Field,
ty: &syn::TypeTuple,
as_vecs: bool,
) -> proc_macro2::TokenStream {
let mut ser = quote! {};
let field_name = field.ident.as_ref().unwrap();
let mut ind = 0;
for elem in &ty.elems {
if let syn::Type::Path(ref _ty) = elem {
let temp_ind = syn::Index {
index: ind,
span: field.span(),
};
ind += 1;
if !as_vecs {
ser.extend(quote_spanned! {field.span()=>
( &(self.#field_name.#temp_ind)).ser(num_pes,darcs);
});
} else {
ser.extend(quote_spanned! {field.span()=>
for e in (&(self.#field_name)).iter(){
(&(e.#temp_ind)).ser(num_pes,darcs);
}
})
}
}
}
ser
}
// pub(crate) fn des(&self) -> proc_macro2::TokenStream {
// let mut des = quote! {};
// for (field, darc_iter) in &self.fields {
// match &field.ty {
// syn::Type::Path(_) => {
// des.extend(self.des_path(field, *darc_iter, false));
// }
// syn::Type::Tuple(ty) => {
// des.extend(self.des_tuple(field, &ty, false));
// }
// _ => {
// abort!(
// field.span(),
// "unsupported type in Remote Active Message {:?}",
// field.ty
// );
// }
// }
// }
// des
// }
// pub(crate) fn des_as_vecs(&self) -> proc_macro2::TokenStream {
// let mut des = quote! {};
// for (field, darc_iter) in &self.fields {
// match &field.ty {
// syn::Type::Path(_) => {
// des.extend(self.des_path(field, *darc_iter, true));
// }
// syn::Type::Tuple(ty) => {
// des.extend(self.des_tuple(field, &ty, true));
// }
// _ => {
// abort!(
// field.span(),
// "unsupported type in Remote Active Message {:?}",
// field.ty
// );
// }
// }
// }
// des
// }
// fn des_path(
// &self,
// field: &syn::Field,
// darc_iter: bool,
// as_vecs: bool,
// ) -> proc_macro2::TokenStream {
// let field_name = field.ident.as_ref().unwrap();
// if as_vecs && darc_iter {
// //both
// quote! {
// for e in (&(self.#field_name)).iter(){
// for d in e.iter(){
// d.des(cur_pe);
// }
// }
// }
// } else if as_vecs ^ darc_iter {
// //either or
// quote! {
// for e in (&(self.#field_name)).iter(){
// e.des(cur_pe);
// }
// }
// } else {
// //neither
// quote! {
// (&(self.#field_name)).des(cur_pe);
// }
// }
// }
// fn des_tuple(
// &self,
// field: &syn::Field,
// ty: &syn::TypeTuple,
// as_vecs: bool,
// ) -> proc_macro2::TokenStream {
// let mut des = quote! {};
// let field_name = field.ident.as_ref().unwrap();
// let mut ind = 0;
// for elem in &ty.elems {
// if let syn::Type::Path(ref _ty) = elem {
// let temp_ind = syn::Index {
// index: ind,
// span: field.span(),
// };
// ind += 1;
// if !as_vecs {
// des.extend(quote_spanned! {field.span()=>
// ( &(self.#field_name.#temp_ind)).des(cur_pe);
// });
// } else {
// des.extend(quote_spanned! {field.span()=>
// for e in (&(self.#field_name)).iter(){
// (&(e.#temp_ind)).des(cur_pe);
// }
// });
// }
// }
// }
// des
// }
pub(crate) fn names(&self) -> Vec<syn::Ident> {
self.fields
.iter()
.map(|(f, _)| f.ident.clone().unwrap())
.collect()
}
// pub(crate) fn types(&self) -> Vec<syn::Type> {
// self.fields.iter().map(|(f,_)| f.ty.clone()).collect()
// }
// pub(crate) fn types_as_vecs(&self) -> Vec<syn::Type> {
// self.fields.iter().map(|(f,_)| f.ty.clone()).map(|ty| parse_quote!{Vec<#ty>}).collect()
// }
// pub(crate) fn gen_vec_iter(&self) -> proc_macro2::TokenStream {
// self.fields.iter().fold(quote!{},|mut iters,(f,_)| {
// let field_name = f.ident.as_ref().unwrap();
// let field_type = &f.ty;
// let func_name = format_ident!("{}_iter",field_name);
// iters.extend(quote!{
// fn #func_name(&self) -> impl Iterator<Item = #field_type> + '_{ //} + std::slice::Iter<'_, #field_type> {
// self.#field_name.iter().map(|e| e.clone())
// }
// });
// iters
// })
// }
pub(crate) fn gen_getters(&self, as_ref: bool) -> proc_macro2::TokenStream {
let (as_ref, getter) = if as_ref {
(quote! {&}, quote! {})
} else {
(quote! {}, quote! {[i].clone()})
};
self.fields.iter().fold(quote! {}, |mut getters, (f, _)| {
let field_name = f.ident.as_ref().unwrap();
let field_type = &f.ty;
let func_name = format_ident!("{}", field_name);
getters.extend(quote! {
fn #func_name(&self,i: usize) -> #as_ref #field_type{ //} + std::slice::Iter<'_, #field_type> {
#as_ref self.#field_name #getter
}
});
getters
})
}
// pub(crate) fn gen_vec_iter_types(&self) -> Vec<proc_macro2::TokenStream> {
// self.fields.iter().map(|(f,_)| {
// let field_type = &f.ty;
// quote!{std::slice::Iter<'_, #field_type>}
// }).collect()
// }
// pub(crate) fn gen_repeat_iter(&self) -> proc_macro2::TokenStream {
// self.fields.iter().fold(quote!{},|mut iters,(f,_)| {
// let field_name = f.ident.as_ref().unwrap();
// let field_type = &f.ty;
// let func_name = format_ident!("{}_iter",field_name);
// iters.extend(quote!{
// fn #func_name(&self) -> std::iter::Repeat<&#field_type> {
// std::iter::repeat(&self.#field_name)
// }
// });
// iters
// })
// }
// pub(crate) fn gen_repeat_iter_types(&self) -> Vec<proc_macro2::TokenStream> {
// self.fields.iter().map(|(f,_)| {
// let field_type = &f.ty;
// quote!{std::iter::Repeat<&#field_type>}
// }).collect()
// }
// pub(crate) fn gen_iter_inits(&self) -> Vec<proc_macro2::TokenStream> {
// self.fields.iter().map(|(f,_)| {
// let field_name = f.ident.as_ref().unwrap();
// let func_name = format_ident!("{}_iter",field_name);
// quote!{self.#func_name()}
// }).collect()
// }
// #[allow(unused)]
// pub(crate) fn len(&self) -> usize {
// self.fields.len()
// }
pub(crate) fn to_tokens_as_vecs(&self) -> proc_macro2::TokenStream {
let mut tokens = quote! {};
for (field, _) in &self.fields {
let name = field.ident.as_ref().unwrap();
let ty = &field.ty;
tokens.extend(quote_spanned! {field.span()=>
#name: Vec<#ty>,
});
}
tokens
}
}
impl ToTokens for FieldInfo {
fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
for (field, _) in &self.fields {
tokens.extend(quote_spanned! {field.span()=>
#field,
});
}
}
}