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Bump syn dependency

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This commit is contained in:
David Tolnay
2016-09-24 09:54:10 -07:00
parent 51f95575ec
commit 1eca7766ba
7 changed files with 44 additions and 26 deletions
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serde_codegen_internals/src/ast.rs
+1 -1
View File
@@ -35,7 +35,7 @@ pub enum Style {
}
impl<'a> Item<'a> {
pub fn from_ast(cx: &Ctxt, item: &'a syn::Item) -> Item<'a> {
pub fn from_ast(cx: &Ctxt, item: &'a syn::MacroInput) -> Item<'a> {
let attrs = attr::Item::from_ast(cx, item);
let body = match item.body {
serde_codegen_internals/src/attr.rs
+32 -15
View File
@@ -94,7 +94,7 @@ pub struct Item {
impl Item {
/// Extract out the `#[serde(...)]` attributes from an item.
pub fn from_ast(cx: &Ctxt, item: &syn::Item) -> Self {
pub fn from_ast(cx: &Ctxt, item: &syn::MacroInput) -> Self {
let mut ser_name = Attr::none(cx, "rename");
let mut de_name = Attr::none(cx, "rename");
let mut deny_unknown_fields = BoolAttr::none(cx, "deny_unknown_fields");
@@ -106,8 +106,10 @@ impl Item {
match meta_item {
// Parse `#[serde(rename="foo")]`
syn::MetaItem::NameValue(ref name, ref lit) if name == "rename" => {
ser_name.set(lit.clone());
de_name.set(lit.clone());
if let Ok(s) = get_string_from_lit(cx, name, lit) {
ser_name.set(s.clone());
de_name.set(s);
}
}
// Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
@@ -191,8 +193,10 @@ impl Variant {
match meta_item {
// Parse `#[serde(rename="foo")]`
syn::MetaItem::NameValue(ref name, ref lit) if name == "rename" => {
ser_name.set(lit.clone());
de_name.set(lit.clone());
if let Ok(s) = get_string_from_lit(cx, name, lit) {
ser_name.set(s.clone());
de_name.set(s);
}
}
// Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
@@ -275,8 +279,10 @@ impl Field {
match meta_item {
// Parse `#[serde(rename="foo")]`
syn::MetaItem::NameValue(ref name, ref lit) if name == "rename" => {
ser_name.set(lit.clone());
de_name.set(lit.clone());
if let Ok(s) = get_string_from_lit(cx, name, lit) {
ser_name.set(s.clone());
de_name.set(s);
}
}
// Parse `#[serde(rename(serialize="foo", deserialize="bar"))]`
@@ -421,7 +427,7 @@ fn get_ser_and_de<T, F>(
items: &[syn::MetaItem],
f: F
) -> Result<SerAndDe<T>, ()>
where F: Fn(&Ctxt, &Ident, &str) -> Result<T, ()>,
where F: Fn(&Ctxt, &Ident, &syn::Lit) -> Result<T, ()>,
{
let mut ser_item = Attr::none(cx, attribute);
let mut de_item = Attr::none(cx, attribute);
@@ -454,7 +460,7 @@ fn get_renames(
cx: &Ctxt,
items: &[syn::MetaItem],
) -> Result<SerAndDe<String>, ()> {
get_ser_and_de(cx, "rename", items, |_, _, s| Ok(s.to_owned()))
get_ser_and_de(cx, "rename", items, get_string_from_lit)
}
fn get_where_predicates(
@@ -473,17 +479,28 @@ pub fn get_serde_meta_items(attr: &syn::Attribute) -> Option<Vec<syn::MetaItem>>
}
}
fn parse_lit_into_path(cx: &Ctxt, name: &Ident, lit: &str) -> Result<syn::Path, ()> {
// TODO handle error
Ok(syn::parse_path(lit).unwrap())
fn get_string_from_lit(_cx: &Ctxt, _name: &Ident, lit: &syn::Lit) -> Result<String, ()> {
if let syn::Lit::Str(ref s, _) = *lit {
Ok(s.clone())
} else {
// TODO handle error
Err(())
}
}
fn parse_lit_into_where(cx: &Ctxt, name: &Ident, lit: &str) -> Result<Vec<syn::WherePredicate>, ()> {
if lit.is_empty() {
fn parse_lit_into_path(cx: &Ctxt, name: &Ident, lit: &syn::Lit) -> Result<syn::Path, ()> {
let string = try!(get_string_from_lit(cx, name, lit));
// TODO handle error
Ok(syn::parse_path(&string).unwrap())
}
fn parse_lit_into_where(cx: &Ctxt, name: &Ident, lit: &syn::Lit) -> Result<Vec<syn::WherePredicate>, ()> {
let string = try!(get_string_from_lit(cx, name, lit));
if string.is_empty() {
return Ok(Vec::new());
}
let where_string = format!("where {}", lit);
let where_string = format!("where {}", string);
// TODO handle error
Ok(syn::parse_where_clause(&where_string).unwrap().predicates)