Update codegen and related dependencies for latest nightly.

codegen_next/Cargo.toml

@@ -14,6 +14,6 @@ license = "MIT/Apache-2.0"
 proc-macro = true
 
 [dependencies]
-quote = "0.5.1"
-proc-macro2 = { version = "0.3.6", features = ["nightly"] }
-syn = { version = "0.13.1", features = ["full", "extra-traits"] }
+quote = "0.6.1"
+proc-macro2 = { version = "0.4.3", features = ["nightly"] }
+syn = { version = "0.14.0", features = ["full", "extra-traits"] }

codegen_next/src/codegen_ext.rs

@@ -1,35 +1,35 @@
 use syn::*;
 use ext::*;
-use quote::Tokens;
+use proc_macro2::TokenStream;
 use spanned::Spanned;
 
 use FieldMember;
 
 pub trait CodegenFieldsExt {
-    fn surround(&self, tokens: Tokens) -> Tokens;
-    fn ignore_tokens(&self) -> Tokens;
-    fn id_match_tokens(&self) -> Tokens;
+    fn surround(&self, tokens: TokenStream) -> TokenStream;
+    fn ignore_tokens(&self) -> TokenStream;
+    fn id_match_tokens(&self) -> TokenStream;
 }
 
 pub fn field_to_ident(i: usize, field: &Field) -> Ident {
     let name = match field.ident {
-        Some(id) => format!("_{}", id),
+        Some(ref id) => format!("_{}", id),
         None => format!("_{}", i)
     };
 
     Ident::new(&name, field.span().into())
 }
 
-pub fn field_to_match((i, field): (usize, &Field)) -> Tokens {
+pub fn field_to_match((i, field): (usize, &Field)) -> TokenStream {
     let ident = field_to_ident(i, field);
     match field.ident {
-        Some(id) => quote!(#id: #ident),
+        Some(ref id) => quote!(#id: #ident),
         None => quote!(#ident)
     }
 }
 
 impl CodegenFieldsExt for Fields {
-    fn surround(&self, tokens: Tokens) -> Tokens {
+    fn surround(&self, tokens: TokenStream) -> TokenStream {
         match *self {
             Fields::Named(..) => quote!({ #tokens }),
             Fields::Unnamed(..) => quote!(( #tokens )),
@@ -37,11 +37,11 @@ impl CodegenFieldsExt for Fields {
         }
     }
 
-    fn ignore_tokens(&self) -> Tokens {
+    fn ignore_tokens(&self) -> TokenStream {
         self.surround(quote!(..))
     }
 
-    fn id_match_tokens(&self) -> Tokens {
+    fn id_match_tokens(&self) -> TokenStream {
         let idents = self.iter()
             .enumerate()
             .map(field_to_match);
@@ -50,12 +50,12 @@ impl CodegenFieldsExt for Fields {
     }
 }
 
-pub trait TokensExt {
-    fn tokens(&self) -> Tokens;
+pub trait TokenStreamExt {
+    fn tokens(&self) -> TokenStream;
 }
 
-impl<'f> TokensExt for FieldMember<'f> {
-    fn tokens(&self) -> Tokens {
+impl<'f> TokenStreamExt for FieldMember<'f> {
+    fn tokens(&self) -> TokenStream {
         let index = self.member.unnamed().map(|i| i.index).unwrap_or(0);
         let ident = field_to_ident(index as usize, &self.field);
         quote!(#ident)
@@ -64,15 +64,15 @@ impl<'f> TokensExt for FieldMember<'f> {
 
 // use rocket::http::{ContentType, MediaType, Status};
 
-// impl TokensExt for ContentType {
-//     fn tokens(&self) -> Tokens {
+// impl TokenStreamExt for ContentType {
+//     fn tokens(&self) -> TokenStream {
 //         let mt_tokens = self.0.tokens();
 //         quote!(rocket::http::ContentType(#mt_tokens))
 //     }
 // }
 
-// impl TokensExt for MediaType {
-//     fn tokens(&self) -> Tokens {
+// impl TokenStreamExt for MediaType {
+//     fn tokens(&self) -> TokenStream {
 //         let (top, sub) = (self.top().as_str(), self.sub().as_str());
 //         let (keys, values) = (self.params().map(|(k, _)| k), self.params().map(|(_, v)| v));
 //         quote!(rocket::http::MediaType {
@@ -93,8 +93,8 @@ impl<'f> TokensExt for FieldMember<'f> {
 //     }
 // }
 
-// impl TokensExt for Status {
-//     fn tokens(&self) -> Tokens {
+// impl TokenStreamExt for Status {
+//     fn tokens(&self) -> TokenStream {
 //         let (code, reason) = (self.code, self.reason);
 //         quote!(rocket::http::Status { code: #code, reason: #reason })
 //     }

codegen_next/src/ext.rs

@@ -80,8 +80,8 @@ impl FieldsExt for Fields {
 
     fn to_field_members<'f>(&'f self) -> Box<Iterator<Item = FieldMember<'f>> + 'f> {
         Box::new(self.iter().enumerate().map(|(index, field)| {
-            if let Some(ident) = field.ident {
-                FieldMember { field, member: Member::Named(ident) }
+            if let Some(ref ident) = field.ident {
+                FieldMember { field, member: Member::Named(ident.clone()) }
             } else {
                 let index = Index { index: index as u32, span: field.span().into() };
                 let member = Member::Unnamed(index);

codegen_next/src/lib.rs

@@ -61,13 +61,13 @@ fn real_derive_from_form_value(input: TokenStream) -> PResult<TokenStream> {
     })?;
 
     // Validate the enum.
-    let name = input.ident;
+    let name = input.ident.clone();
     let enum_data = validate_input(input)?;
 
     // Create iterators over the identifers as idents and as strings.
-    let variant_strs = enum_data.variants.iter().map(|v| v.ident.as_ref() as &str);
-    let variant_idents = enum_data.variants.iter().map(|v| v.ident);
-    let names = ::std::iter::repeat(name);
+    let variant_strs = enum_data.variants.iter().map(|v| v.ident.to_string());
+    let variant_idents = enum_data.variants.iter().map(|v| v.ident.clone());
+    let names = ::std::iter::repeat(&name);
 
     // Generate the implementation.
     Ok(quote! {

codegen_next/src/spanned.rs

@@ -1,7 +1,6 @@
 use proc_macro::Span;
 
-use proc_macro2::TokenStream;
-use quote::{Tokens, ToTokens};
+use quote::ToTokens;
 
 pub trait Spanned {
     fn span(&self) -> Span;
@@ -10,9 +9,7 @@ pub trait Spanned {
 // FIXME: Remove this once proc_macro's stabilize.
 impl<T: ToTokens> Spanned for T {
     fn span(&self) -> Span {
-        let mut tokens = Tokens::new();
-        self.to_tokens(&mut tokens);
-        let token_stream = TokenStream::from(tokens);
+        let token_stream = self.into_token_stream();
         let mut iter = token_stream.into_iter();
         let mut span = match iter.next() {
             Some(tt) => tt.span().unstable(),

lib/Cargo.toml

@@ -29,8 +29,8 @@ time = "0.1"
 memchr = "2"
 base64 = "0.9"
 smallvec = "0.6"
-pear = { git = "http://github.com/SergioBenitez/pear", rev = "44bbca0" }
-pear_codegen = { git = "http://github.com/SergioBenitez/pear", rev = "44bbca0" }
+pear = { git = "http://github.com/SergioBenitez/pear", rev = "a96a7fd" }
+pear_codegen = { git = "http://github.com/SergioBenitez/pear", rev = "a96a7fd" }
 rustls = { version = "0.12.0", optional = true }
 hyper = { version = "0.10.13", default-features = false }
 indexmap = "1.0"

lib/build.rs

@@ -8,8 +8,8 @@ use yansi::Color::{Red, Yellow, Blue, White};
 use version_check::{supports_features, is_min_version, is_min_date};
 
 // Specifies the minimum nightly version needed to compile Rocket.
-const MIN_DATE: &'static str = "2018-04-28";
-const MIN_VERSION: &'static str = "1.27.0-nightly";
+const MIN_DATE: &'static str = "2018-05-20";
+const MIN_VERSION: &'static str = "1.28.0-nightly";
 
 fn main() {
     let ok_channel = supports_features();