grassrootseconomics/openethereum
8
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Backport syntex update (#5316)

Browse Source
This commit is contained in:
Nikolay Volf
2017-03-29 11:43:13 +03:00
committed by Arkadiy Paronyan
parent 987390fb7d
commit 7f4e700013
16 changed files with 240 additions and 211 deletions
Download Patch File Download Diff File Expand all files Collapse all files

179
ipc/codegen/src/codegen.rs
View File

@@ -56,7 +56,7 @@ pub fn expand_ipc_implementation(
let builder = aster::AstBuilder::new().span(span);
let interface_map = match implement_interface(cx, &builder, &item, push) {
let interface_map = match implement_interface(cx, &builder, &item, push, meta_item) {
Ok(interface_map) => interface_map,
Err(Error) => { return; },
};
@@ -99,9 +99,9 @@ fn push_invoke_signature_aster(
let inputs = &named_signature.sig.decl.inputs;
let (input_type_name, input_arg_names, input_arg_tys) = if inputs.len() > 0 {
let first_field_name = field_name(builder, &inputs[0]).name.as_str();
if first_field_name == "self" && inputs.len() == 1 { (None, vec![], vec![]) }
if &*first_field_name == "self" && inputs.len() == 1 { (None, vec![], vec![]) }
else {
let skip = if first_field_name == "self" { 2 } else { 1 };
let skip = if &*first_field_name == "self" { 2 } else { 1 };
let name_str = format!("{}_input", named_signature.ident.name.as_str());
let mut arg_names = Vec::new();
@@ -181,6 +181,7 @@ fn implement_dispatch_arm_invoke_stmt(
dispatch: &Dispatch,
) -> ast::Stmt
{
use ::syntax::tokenstream::TokenTree::Token;
let function_name = builder.id(dispatch.function_name.as_str());
let input_args_exprs = dispatch.input_arg_names.iter().enumerate().map(|(arg_index, arg_name)| {
@@ -193,56 +194,56 @@ fn implement_dispatch_arm_invoke_stmt(
let ext_cx = &*cx;
::quasi::parse_stmt_panic(&mut ::syntax::parse::new_parser_from_tts(
ext_cx.parse_sess(),
ext_cx.cfg(),
{
let _sp = ext_cx.call_site();
let mut tt = ::std::vec::Vec::new();
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Brace)));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Brace)));
if dispatch.return_type_ty.is_some() {
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::ModSep));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("ipc"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::ModSep));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("binary"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::ModSep));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("serialize"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::BinOp(::syntax::parse::token::And)));
tt.push(Token(_sp, ::syntax::parse::token::ModSep));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("ipc"))));
tt.push(Token(_sp, ::syntax::parse::token::ModSep));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("binary"))));
tt.push(Token(_sp, ::syntax::parse::token::ModSep));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("serialize"))));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::BinOp(::syntax::parse::token::And)));
}
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("self"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Dot));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("self"))));
tt.push(Token(_sp, ::syntax::parse::token::Dot));
tt.extend(::quasi::ToTokens::to_tokens(&function_name, ext_cx).into_iter());
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
for arg_expr in input_args_exprs {
tt.extend(::quasi::ToTokens::to_tokens(&arg_expr, ext_cx).into_iter());
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Comma));
tt.push(Token(_sp, ::syntax::parse::token::Comma));
}
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
if dispatch.return_type_ty.is_some() {
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Dot));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("unwrap"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::Dot));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("unwrap"))));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
}
else {
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Semi));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("Vec"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::ModSep));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("new"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::Semi));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("Vec"))));
tt.push(Token(_sp, ::syntax::parse::token::ModSep));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("new"))));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
}
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Brace)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Brace)));
tt
})).unwrap()
}
)).unwrap()
}
fn implement_dispatch_arm_invoke(
@@ -344,6 +345,8 @@ fn implement_client_method_body(
interface_map: &InterfaceMap,
) -> P<ast::Expr>
{
use ::syntax::tokenstream::TokenTree::Token;
let dispatch = &interface_map.dispatches[index as usize];
let index_ident = builder.id(format!("{}", index + RESERVED_MESSAGE_IDS).as_str());
@@ -391,26 +394,25 @@ fn implement_client_method_body(
let ext_cx = &*cx;
::quasi::parse_stmt_panic(&mut ::syntax::parse::new_parser_from_tts(
ext_cx.parse_sess(),
ext_cx.cfg(),
{
let _sp = ext_cx.call_site();
let mut tt = ::std::vec::Vec::new();
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("let"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("payload"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Eq));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("Request"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Brace)));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("let"))));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("payload"))));
tt.push(Token(_sp, ::syntax::parse::token::Eq));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("Request"))));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Brace)));
for arg in dispatch.input_arg_names.iter() {
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of(arg.as_str()))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Colon));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::BinOp(::syntax::parse::token::And)));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of(arg.as_str()))));
tt.push(Token(_sp, ::syntax::parse::token::Colon));
tt.push(Token(_sp, ::syntax::parse::token::BinOp(::syntax::parse::token::And)));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of(arg.as_str()))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Comma));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of(arg.as_str()))));
tt.push(Token(_sp, ::syntax::parse::token::Comma));
}
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Brace)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Brace)));
tt
}))
});
@@ -465,6 +467,8 @@ fn implement_client_method(
)
-> ast::ImplItem
{
use ::syntax::tokenstream::TokenTree::Token;
let dispatch = &interface_map.dispatches[index as usize];
let method_name = builder.id(dispatch.function_name.as_str());
let body = implement_client_method_body(cx, builder, index, interface_map);
@@ -476,36 +480,35 @@ fn implement_client_method(
let signature = ::syntax::parse::parser::Parser::parse_impl_item(
&mut ::syntax::parse::new_parser_from_tts(
ext_cx.parse_sess(),
ext_cx.cfg(),
{
let _sp = ext_cx.call_site();
let mut tt = ::std::vec::Vec::new();
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("fn"))));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("fn"))));
tt.extend(::quasi::ToTokens::to_tokens(&method_name, ext_cx).into_iter());
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::BinOp(::syntax::parse::token::And)));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("self"))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Comma));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::BinOp(::syntax::parse::token::And)));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of("self"))));
tt.push(Token(_sp, ::syntax::parse::token::Comma));
for arg_idx in 0..dispatch.input_arg_names.len() {
let arg_name = dispatch.input_arg_names[arg_idx].as_str();
let arg_ty = dispatch.input_arg_tys[arg_idx].clone();
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of(arg_name))));
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Colon));
tt.push(Token(_sp, ::syntax::parse::token::Ident(ext_cx.ident_of(arg_name))));
tt.push(Token(_sp, ::syntax::parse::token::Colon));
tt.extend(::quasi::ToTokens::to_tokens(&arg_ty, ext_cx).into_iter());
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::Comma));
tt.push(Token(_sp, ::syntax::parse::token::Comma));
}
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Paren)));
if let Some(ref return_ty) = dispatch.return_type_ty {
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::RArrow));
tt.push(Token(_sp, ::syntax::parse::token::RArrow));
tt.extend(::quasi::ToTokens::to_tokens(return_ty, ext_cx).into_iter());
}
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Brace)));
tt.push(Token(_sp, ::syntax::parse::token::OpenDelim(::syntax::parse::token::Brace)));
tt.extend(::quasi::ToTokens::to_tokens(&body, ext_cx).into_iter());
tt.push(::syntax::ast::TokenTree::Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Brace)));
tt.push(Token(_sp, ::syntax::parse::token::CloseDelim(::syntax::parse::token::Brace)));
tt
}));
@@ -526,7 +529,7 @@ fn client_generics(builder: &aster::AstBuilder, interface_map: &InterfaceMap) ->
fn client_qualified_ident(cx: &ExtCtxt, builder: &aster::AstBuilder, interface_map: &InterfaceMap) -> P<Ty> {
let generics = client_generics(builder, interface_map);
aster::ty::TyBuilder::new().path().segment(interface_map.ident_map.client_ident(cx, builder, &interface_map.original_item))
aster::ty::TyBuilder::new().path().segment(interface_map.ident_map.client_ident(cx, builder))
.with_generics(generics).build()
.build()
}
@@ -542,7 +545,7 @@ fn client_phantom_ident(builder: &aster::AstBuilder, interface_map: &InterfaceMa
/// for say `Service` it generates `ServiceClient`
fn push_client_struct(cx: &ExtCtxt, builder: &aster::AstBuilder, interface_map: &InterfaceMap, push: &mut FnMut(Annotatable)) {
let generics = client_generics(builder, interface_map);
let client_short_ident = interface_map.ident_map.client_ident(cx, builder, &interface_map.original_item);
let client_short_ident = interface_map.ident_map.client_ident(cx, builder);
let phantom = client_phantom_ident(builder, interface_map);
let client_struct_item = quote_item!(cx,
@@ -575,7 +578,7 @@ fn push_with_socket_client_implementation(
let generics = client_generics(builder, interface_map);
let client_ident = client_qualified_ident(cx, builder, interface_map);
let where_clause = &generics.where_clause;
let client_short_ident = interface_map.ident_map.client_ident(cx, builder, &interface_map.original_item);
let client_short_ident = interface_map.ident_map.client_ident(cx, builder);
let implement = quote_item!(cx,
impl $generics ::ipc::WithSocket<S> for $client_ident $where_clause {
@@ -717,33 +720,31 @@ fn get_str_from_lit(cx: &ExtCtxt, name: &str, lit: &ast::Lit) -> Result<String,
}
}
pub fn get_ipc_meta_items(attr: &ast::Attribute) -> Option<&[P<ast::MetaItem>]> {
match attr.node.value.node {
ast::MetaItemKind::List(ref name, ref items) if name == &"ipc" => {
Some(items)
}
_ => None
}
}
fn client_ident_renamed(cx: &ExtCtxt, item: &ast::Item) -> Option<String> {
for meta_items in item.attrs().iter().filter_map(get_ipc_meta_items) {
for meta_item in meta_items {
match meta_item.node {
ast::MetaItemKind::NameValue(ref name, ref lit) if name == &"client_ident" => {
if let Ok(s) = get_str_from_lit(cx, name, lit) {
return Some(s);
fn client_ident_renamed(cx: &ExtCtxt, meta_item: &MetaItem) -> Option<String> {
if let ast::MetaItemKind::List(ref list) = meta_item.node {
for nested in list {
match nested.node {
ast::NestedMetaItemKind::MetaItem(ref meta_item) => {
let is_client_ident = &*meta_item.name.as_str() == "client_ident";
match meta_item.node {
ast::MetaItemKind::NameValue(ref lit) if is_client_ident => {
if let Ok(s) = get_str_from_lit(cx, "client_ident", lit) {
return Some(s);
}
}
_ => {
cx.span_err(
meta_item.span,
&format!("unknown client_ident container attribute `{}`",
::syntax::print::pprust::meta_item_to_string(&meta_item)));
}
}
}
_ => {
cx.span_err(
meta_item.span,
&format!("unknown client_ident container attribute `{}`",
::syntax::print::pprust::meta_item_to_string(meta_item)));
}
},
_ => {},
}
}
}
None
}
@@ -759,6 +760,7 @@ struct InterfaceMap {
struct IdentMap {
original_path: ast::Path,
meta_item: MetaItem,
}
impl IdentMap {
@@ -766,8 +768,8 @@ impl IdentMap {
builder.id(format!("{}", ::syntax::print::pprust::path_to_string(&self.original_path)))
}
fn client_ident(&self, cx: &ExtCtxt, builder: &aster::AstBuilder, item: &ast::Item) -> Ident {
if let Some(new_name) = client_ident_renamed(cx, item) {
fn client_ident(&self, cx: &ExtCtxt, builder: &aster::AstBuilder) -> Ident {
if let Some(new_name) = client_ident_renamed(cx, &self.meta_item) {
builder.id(new_name)
}
else {
@@ -776,12 +778,12 @@ impl IdentMap {
}
}
fn ty_ident_map(original_ty: &P<Ty>) -> IdentMap {
fn ty_ident_map(original_ty: &P<Ty>, meta_item: &MetaItem) -> IdentMap {
let original_path = match original_ty.node {
::syntax::ast::TyKind::Path(_, ref path) => path.clone(),
_ => { panic!("incompatible implementation"); }
};
let ident_map = IdentMap { original_path: original_path };
let ident_map = IdentMap { original_path: original_path, meta_item: meta_item.clone() };
ident_map
}
@@ -791,6 +793,7 @@ fn implement_interface(
builder: &aster::AstBuilder,
item: &Item,
push: &mut FnMut(Annotatable),
meta_item: &MetaItem,
) -> Result<InterfaceMap, Error> {
let (generics, impl_trait, original_ty, dispatch_table) = match item.node {
ast::ItemKind::Impl(_, _, ref generics, ref impl_trait, ref ty, ref impl_items) => {
@@ -844,7 +847,7 @@ fn implement_interface(
let (handshake_arm, handshake_arm_buf) = implement_handshake_arm(cx);
let ty = ty_ident_map(&original_ty).ident(builder);
let ty = ty_ident_map(&original_ty, meta_item).ident(builder);
let (interface_endpoint, host_generics) = match impl_trait {
Some(ref trait_) => (builder.id(::syntax::print::pprust::path_to_string(&trait_.path)), None),
None => (ty, Some(&impl_generics)),
@@ -884,7 +887,7 @@ fn implement_interface(
).unwrap();
Ok(InterfaceMap {
ident_map: ty_ident_map(&original_ty),
ident_map: ty_ident_map(&original_ty, meta_item),
original_item: item.clone(),
item: ipc_item,
dispatches: dispatch_table,

8
ipc/codegen/src/lib.rs
View File

@@ -66,9 +66,11 @@ struct StripAttributeFolder<'a> {
#[cfg(feature = "with-syntex")]
impl<'a> fold::Folder for StripAttributeFolder<'a> {
fn fold_attribute(&mut self, attr: ast::Attribute) -> Option<ast::Attribute> {
match attr.node.value.node {
ast::MetaItemKind::List(ref n, _) if n == self.attr_title => { return None; }
ast::MetaItemKind::Word(ref n) if n == self.attr_title => { return None; }
let is_self = &*attr.value.name.as_str() == self.attr_title;
match attr.value.node {
ast::MetaItemKind::List(_) if is_self => { return None; }
ast::MetaItemKind::Word if is_self => { return None; }
_ => {}
}

37
ipc/codegen/src/serialization.rs
View File

@@ -151,7 +151,7 @@ fn binary_expr(
_ => {
cx.span_bug(item.span,
"expected ItemStruct or ItemEnum in #[derive(Binary)]");
Err(Error)
Err(Error) as Result<BinaryExpressions, Error>
},
}
}
@@ -184,13 +184,17 @@ fn binary_expr_struct(
let size_exprs: Vec<P<ast::Expr>> = fields.iter().enumerate().map(|(index, field)| {
let raw_ident = ::syntax::print::pprust::ty_to_string(&codegen::strip_ptr(&field.ty));
let index_ident = builder.id(format!("__field{}", index));
let field_id = match field.ident {
Some(ident) => builder.id(ident),
None => builder.id(format!("{}", index)),
};
match raw_ident.as_ref() {
"u8" => {
quote_expr!(cx, 1)
},
"[u8]" => {
value_ident.and_then(|x| {
let field_id = builder.id(field.ident.unwrap());
Some(quote_expr!(cx, $x. $field_id .len()))
})
.unwrap_or_else(|| {
@@ -207,7 +211,6 @@ fn binary_expr_struct(
value_ident.and_then(|x|
{
let field_id = builder.id(field.ident.unwrap());
Some(quote_expr!(cx,
match $field_type_ident_qualified::len_params() {
0 => ::std::mem::size_of::<$field_type_ident>(),
@@ -232,12 +235,12 @@ fn binary_expr_struct(
}
let mut write_stmts = Vec::<ast::Stmt>::new();
write_stmts.push(quote_stmt!(cx, let mut offset = 0usize;).unwrap());
write_stmts.push(quote_stmt!(cx, let mut offset = 0usize;).expect("stmt1"));
let mut map_stmts = Vec::<ast::Stmt>::new();
let field_amount = builder.id(&format!("{}",fields.len()));
map_stmts.push(quote_stmt!(cx, let mut map = vec![0usize; $field_amount];).unwrap());
map_stmts.push(quote_stmt!(cx, let mut total = 0usize;).unwrap());
map_stmts.push(quote_stmt!(cx, let mut map = vec![0usize; $field_amount];).expect("stmt2"));
map_stmts.push(quote_stmt!(cx, let mut total = 0usize;).expect("stmt3"));
let mut post_write_stmts = Vec::<ast::Stmt>::new();
@@ -248,9 +251,12 @@ fn binary_expr_struct(
let field_type_ident_qualified = builder.id(
replace_qualified(&::syntax::print::pprust::ty_to_string(&codegen::strip_ptr(&field.ty))));
let field_id = match field.ident {
Some(ident) => builder.id(ident),
None => builder.id(format!("{}", index)),
};
let member_expr = match value_ident {
Some(x) => {
let field_id = builder.id(field.ident.unwrap());
quote_expr!(cx, $x . $field_id)
},
None => {
@@ -267,8 +273,8 @@ fn binary_expr_struct(
match raw_ident.as_ref() {
"u8" => {
write_stmts.push(quote_stmt!(cx, let next_line = offset + 1;).unwrap());
write_stmts.push(quote_stmt!(cx, buffer[offset] = $member_expr; ).unwrap());
write_stmts.push(quote_stmt!(cx, let next_line = offset + 1;).expect("stmt4"));
write_stmts.push(quote_stmt!(cx, buffer[offset] = $member_expr; ).expect("stm5"));
},
"[u8]" => {
write_stmts.push(quote_stmt!(cx, let size = $member_expr .len();).unwrap());
@@ -374,7 +380,7 @@ fn binary_expr_item_struct(
cx.span_bug(span,
&format!("#[derive(Binary)] Unsupported struct content, expected tuple/struct, found: {:?}",
variant_data));
Err(Error)
Err(Error) as Result<BinaryExpressions, Error>
},
}
}
@@ -431,13 +437,12 @@ fn fields_sequence(
variant_ident: &ast::Ident,
) -> ast::Expr {
use syntax::parse::token;
use syntax::ast::TokenTree::Token;
use syntax::tokenstream::TokenTree::Token;
let named_members = fields.iter().any(|f| f.ident.is_some());
::quasi::parse_expr_panic(&mut ::syntax::parse::new_parser_from_tts(
ext_cx.parse_sess(),
ext_cx.cfg(),
{
let _sp = ext_cx.call_site();
let mut tt = ::std::vec::Vec::new();
@@ -569,11 +574,10 @@ fn named_fields_sequence(
fields: &[ast::StructField],
) -> ast::Stmt {
use syntax::parse::token;
use syntax::ast::TokenTree::Token;
use syntax::tokenstream::TokenTree::Token;
::quasi::parse_stmt_panic(&mut ::syntax::parse::new_parser_from_tts(
ext_cx.parse_sess(),
ext_cx.cfg(),
{
let _sp = ext_cx.call_site();
let mut tt = ::std::vec::Vec::new();
@@ -590,7 +594,10 @@ fn named_fields_sequence(
tt.push(Token(_sp, token::OpenDelim(token::Brace)));
for (idx, field) in fields.iter().enumerate() {
tt.push(Token(_sp, token::Ident(field.ident.clone().expect("function is called for named fields"))));
tt.push(Token(_sp, match field.ident {
Some(ident) => token::Ident(ident),
None => token::Ident(ext_cx.ident_of(&format!("{}", idx))),
}));
tt.push(Token(_sp, token::Colon));
// special case for u8, it just takes byte form sequence