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rustc: Stabilize the proc_macro feature
This commit stabilizes the `proc_macro` and `proc_macro_lib` features in the compiler to stabilize the "Macros 1.1" feature of the language. Many more details can be found on the tracking issue, #35900. Closes #35900
This commit is contained in:
Alex Crichton
parent
917e5baae7
commit
045f8f6929
@ -15,8 +15,7 @@
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//! Currently the primary use of this crate is to provide the ability to define
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//! new custom derive modes through `#[proc_macro_derive]`.
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//!
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//! Added recently as part of [RFC 1681] this crate is currently *unstable* and
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//! requires the `#![feature(proc_macro_lib)]` directive to use.
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//! Added recently as part of [RFC 1681] this crate is stable as of Rust 1.15.0.
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//!
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//! [RFC 1681]: https://github.com/rust-lang/rfcs/blob/master/text/1681-macros-1.1.md
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//!
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@ -27,7 +26,7 @@
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//! area for macro authors is stabilized.
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#![crate_name = "proc_macro"]
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#![unstable(feature = "proc_macro_lib", issue = "27812")]
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#![stable(feature = "proc_macro_lib", since = "1.15.0")]
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#![crate_type = "rlib"]
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#![crate_type = "dylib"]
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#![cfg_attr(not(stage0), deny(warnings))]
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@ -55,12 +54,14 @@ use syntax::ptr::P;
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///
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/// The API of this type is intentionally bare-bones, but it'll be expanded over
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/// time!
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#[stable(feature = "proc_macro_lib", since = "1.15.0")]
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pub struct TokenStream {
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inner: Vec<P<ast::Item>>,
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}
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/// Error returned from `TokenStream::from_str`.
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#[derive(Debug)]
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#[stable(feature = "proc_macro_lib", since = "1.15.0")]
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pub struct LexError {
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_inner: (),
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}
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@ -131,6 +132,7 @@ pub mod __internal {
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}
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}
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#[stable(feature = "proc_macro_lib", since = "1.15.0")]
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impl FromStr for TokenStream {
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type Err = LexError;
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@ -154,6 +156,7 @@ impl FromStr for TokenStream {
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}
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}
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#[stable(feature = "proc_macro_lib", since = "1.15.0")]
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impl fmt::Display for TokenStream {
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fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
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for item in self.inner.iter() {
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@ -716,8 +716,7 @@ pub fn phase_2_configure_and_expand<F>(sess: &Session,
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is_proc_macro_crate,
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is_test_crate,
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num_crate_types,
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sess.diagnostic(),
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&sess.features.borrow())
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sess.diagnostic())
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});
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}
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@ -21,7 +21,6 @@
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#![feature(conservative_impl_trait)]
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#![feature(core_intrinsics)]
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#![feature(proc_macro_internals)]
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#![feature(proc_macro_lib)]
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#![feature(quote)]
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#![feature(rustc_diagnostic_macros)]
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#![feature(rustc_private)]
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@ -926,7 +926,6 @@ impl<'feat> ExpansionConfig<'feat> {
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fn enable_allow_internal_unstable = allow_internal_unstable,
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fn enable_custom_derive = custom_derive,
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fn enable_pushpop_unsafe = pushpop_unsafe,
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fn enable_proc_macro = proc_macro,
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}
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}
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@ -279,9 +279,6 @@ declare_features! (
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// instead of just the platforms on which it is the C ABI
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(active, abi_sysv64, "1.13.0", Some(36167)),
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// Macros 1.1
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(active, proc_macro, "1.13.0", Some(35900)),
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// Allows untagged unions `union U { ... }`
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(active, untagged_unions, "1.13.0", Some(32836)),
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@ -377,6 +374,8 @@ declare_features! (
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// Allows `..` in tuple (struct) patterns
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(accepted, dotdot_in_tuple_patterns, "1.14.0", Some(33627)),
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(accepted, item_like_imports, "1.14.0", Some(35120)),
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// Macros 1.1
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(accepted, proc_macro, "1.15.0", Some(35900)),
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);
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// (changing above list without updating src/doc/reference.md makes @cmr sad)
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@ -650,11 +649,7 @@ pub const BUILTIN_ATTRIBUTES: &'static [(&'static str, AttributeType, AttributeG
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is an experimental feature",
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cfg_fn!(fundamental))),
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("proc_macro_derive", Normal, Gated(Stability::Unstable,
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"proc_macro",
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"the `#[proc_macro_derive]` attribute \
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is an experimental feature",
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cfg_fn!(proc_macro))),
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("proc_macro_derive", Normal, Ungated),
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("rustc_copy_clone_marker", Whitelisted, Gated(Stability::Unstable,
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"rustc_attrs",
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@ -760,7 +755,6 @@ const GATED_CFGS: &'static [(&'static str, &'static str, fn(&Features) -> bool)]
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("target_vendor", "cfg_target_vendor", cfg_fn!(cfg_target_vendor)),
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("target_thread_local", "cfg_target_thread_local", cfg_fn!(cfg_target_thread_local)),
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("target_has_atomic", "cfg_target_has_atomic", cfg_fn!(cfg_target_has_atomic)),
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("proc_macro", "proc_macro", cfg_fn!(proc_macro)),
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];
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#[derive(Debug, Eq, PartialEq)]
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@ -15,7 +15,7 @@ use syntax::attr::HasAttrs;
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use syntax::codemap;
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use syntax::ext::base::{Annotatable, ExtCtxt, SyntaxExtension};
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use syntax::ext::build::AstBuilder;
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use syntax::feature_gate::{self, emit_feature_err};
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use syntax::feature_gate;
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use syntax::ptr::P;
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use syntax::symbol::Symbol;
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use syntax_pos::Span;
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@ -220,12 +220,6 @@ pub fn expand_derive(cx: &mut ExtCtxt,
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.filter(|&(_, ref name)| !is_builtin_trait(name.name().unwrap()))
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.next();
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if let Some((i, titem)) = macros_11_derive {
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if !cx.ecfg.features.unwrap().proc_macro {
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let issue = feature_gate::GateIssue::Language;
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let msg = "custom derive macros are experimentally supported";
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emit_feature_err(cx.parse_sess, "proc_macro", titem.span, issue, msg);
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}
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let tname = ast::Ident::with_empty_ctxt(titem.name().unwrap());
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let path = ast::Path::from_ident(titem.span, tname);
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let ext = cx.resolver.resolve_macro(cx.current_expansion.mark, &path, false).unwrap();
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@ -19,7 +19,6 @@
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html_root_url = "https://doc.rust-lang.org/nightly/")]
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#![cfg_attr(not(stage0), deny(warnings))]
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#![feature(proc_macro_lib)]
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#![feature(proc_macro_internals)]
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#![feature(rustc_private)]
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#![feature(staged_api)]
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@ -17,7 +17,6 @@ use syntax::ext::base::ExtCtxt;
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use syntax::ext::build::AstBuilder;
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use syntax::ext::expand::ExpansionConfig;
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use syntax::parse::ParseSess;
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use syntax::feature_gate::Features;
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use syntax::fold::Folder;
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use syntax::ptr::P;
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use syntax::symbol::Symbol;
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@ -47,8 +46,7 @@ pub fn modify(sess: &ParseSess,
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is_proc_macro_crate: bool,
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is_test_crate: bool,
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num_crate_types: usize,
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handler: &errors::Handler,
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features: &Features) -> ast::Crate {
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handler: &errors::Handler) -> ast::Crate {
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let ecfg = ExpansionConfig::default("proc_macro".to_string());
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let mut cx = ExtCtxt::new(sess, ecfg, resolver);
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@ -66,12 +64,6 @@ pub fn modify(sess: &ParseSess,
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if !is_proc_macro_crate {
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return krate
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} else if !features.proc_macro {
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let mut err = handler.struct_err("the `proc-macro` crate type is \
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experimental");
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err.help("add #![feature(proc_macro)] to the crate attributes to \
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enable");
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err.emit();
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}
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if num_crate_types > 1 {
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@ -9,7 +9,6 @@
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// except according to those terms.
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#![crate_type = "proc-macro"]
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#![feature(proc_macro, proc_macro_lib)]
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extern crate proc_macro;
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@ -11,7 +11,6 @@
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// force-host
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// no-prefer-dynamic
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#![feature(proc_macro, proc_macro_lib)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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@ -11,8 +11,6 @@
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// force-host
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// no-prefer-dynamic
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#![feature(proc_macro)]
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#![feature(proc_macro_lib)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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@ -11,8 +11,6 @@
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// force-host
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// no-prefer-dynamic
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#![feature(proc_macro)]
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#![feature(proc_macro_lib)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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@ -11,8 +11,6 @@
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// no-prefer-dynamic
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// force-host
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#![feature(proc_macro)]
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#![feature(proc_macro_lib)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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@ -11,8 +11,6 @@
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// no-prefer-dynamic
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// force-host
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#![feature(proc_macro)]
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#![feature(proc_macro_lib)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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@ -11,8 +11,6 @@
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// force-host
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// no-prefer-dynamic
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#![feature(proc_macro)]
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#![feature(proc_macro_lib)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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@ -11,8 +11,6 @@
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// force-host
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// no-prefer-dynamic
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#![feature(proc_macro)]
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#![feature(proc_macro_lib)]
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#![crate_type = "proc-macro"]
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extern crate proc_macro;
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@ -11,7 +11,6 @@
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// no-prefer-dynamic
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#![crate_type = "proc-macro"]
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#![feature(proc_macro, proc_macro_lib)]
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extern crate proc_macro;
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@ -10,8 +10,6 @@
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// aux-build:derive-bad.rs
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#![feature(proc_macro)]
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#[macro_use]
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extern crate derive_bad;
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@ -10,7 +10,6 @@
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// aux-build:derive-a.rs
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#![feature(proc_macro)]
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#![allow(warnings)]
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#[macro_use]
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@ -10,7 +10,6 @@
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// aux-build:derive-unstable-2.rs
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#![feature(proc_macro)]
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#![allow(warnings)]
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#[macro_use]
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@ -10,7 +10,6 @@
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// aux-build:derive-unstable.rs
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#![feature(proc_macro)]
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#![allow(warnings)]
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#[macro_use]
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@ -11,7 +11,6 @@
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// error-pattern: cannot export macro_rules! macros from a `proc-macro` crate
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#![crate_type = "proc-macro"]
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#![feature(proc_macro)]
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#[macro_export]
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macro_rules! foo {
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@ -1,13 +0,0 @@
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// error-pattern: the `proc-macro` crate type is experimental
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#![crate_type = "proc-macro"]
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@ -1,13 +0,0 @@
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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extern crate proc_macro; //~ ERROR: use of unstable library feature
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fn main() {}
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@ -1,15 +0,0 @@
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![crate_type = "proc-macro"]
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#[proc_macro_derive(Foo)] //~ ERROR: is an experimental feature
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pub fn foo() {
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}
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@ -1,17 +0,0 @@
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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// aux-build:derive-a.rs
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#[macro_use]
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extern crate derive_a;
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#[derive(A)] //~ ERROR custom derive macros are experimentally supported
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struct S;
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@ -1,12 +0,0 @@
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// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
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// file at the top-level directory of this distribution and at
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// http://rust-lang.org/COPYRIGHT.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#[cfg(proc_macro)] //~ ERROR: experimental and subject to change
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fn foo() {}
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@ -8,8 +8,6 @@
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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#![feature(proc_macro, proc_macro_lib)]
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extern crate proc_macro;
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#[proc_macro_derive(Foo)]
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@ -10,7 +10,6 @@
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// aux-build:derive-a.rs
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#![feature(proc_macro)]
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#![allow(warnings)]
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#[macro_use]
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@ -10,8 +10,6 @@
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// aux-build:derive-a-b.rs
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#![feature(proc_macro)]
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#[macro_use]
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extern crate derive_a_b;
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@ -10,7 +10,6 @@
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// aux-build:derive-b.rs
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#![feature(proc_macro)]
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#![allow(warnings)]
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#[macro_use]
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@ -10,8 +10,6 @@
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// aux-build:derive-panic.rs
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#![feature(proc_macro)]
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#[macro_use]
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extern crate derive_panic;
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@ -10,7 +10,6 @@
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// aux-build:derive-b.rs
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#![feature(proc_macro)]
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#![allow(warnings)]
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#[macro_use]
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@ -9,7 +9,6 @@
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// except according to those terms.
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#![crate_type = "proc-macro"]
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#![feature(proc_macro, proc_macro_lib)]
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extern crate proc_macro;
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@ -9,7 +9,6 @@
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// except according to those terms.
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#![crate_type = "proc-macro"]
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#![feature(proc_macro, proc_macro_lib)]
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extern crate proc_macro;
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@ -10,8 +10,6 @@
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// aux-build:derive-a.rs
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#![feature(proc_macro)]
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#[macro_use]
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extern crate derive_a;
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#[macro_use]
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@ -9,7 +9,6 @@
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// except according to those terms.
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#![crate_type = "proc-macro"]
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#![feature(proc_macro, proc_macro_lib)]
|
||||
#![allow(warnings)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
@ -8,6 +8,5 @@
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![allow(unused)]
|
||||
#![crate_type = "proc-macro"]
|
||||
|
||||
@ -8,6 +8,5 @@
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![allow(unused)]
|
||||
#![crate_type = "proc-macro"]
|
||||
|
||||
@ -9,7 +9,6 @@
|
||||
// except according to those terms.
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro, proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -8,8 +8,6 @@
|
||||
// option. This file may not be copied, modified, or distributed
|
||||
// except according to those terms.
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate foo;
|
||||
|
||||
|
||||
@ -9,8 +9,6 @@
|
||||
// except according to those terms.
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -10,8 +10,6 @@
|
||||
|
||||
// aux-build:add-impl.rs
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate add_impl;
|
||||
|
||||
|
||||
@ -10,7 +10,6 @@
|
||||
|
||||
// aux-build:append-impl.rs
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![allow(warnings)]
|
||||
|
||||
#[macro_use]
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// force-host
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
#![crate_type = "proc-macro"]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -10,7 +10,7 @@
|
||||
|
||||
// ignore-test
|
||||
|
||||
#![feature(macro_reexport, proc_macro)]
|
||||
#![feature(macro_reexport)]
|
||||
|
||||
#[macro_reexport(A)]
|
||||
extern crate derive_a;
|
||||
|
||||
@ -11,9 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
// compile-flags:--crate-type proc-macro
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
use proc_macro::TokenStream;
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
#![deny(warnings)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
@ -10,7 +10,6 @@
|
||||
|
||||
// aux-build:double.rs
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![allow(unused)]
|
||||
|
||||
#[macro_use]
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// aux-build:derive-b.rs
|
||||
// ignore-stage1
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate derive_b;
|
||||
|
||||
|
||||
@ -10,8 +10,6 @@
|
||||
|
||||
// aux-build:derive-same-struct.rs
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate derive_same_struct;
|
||||
|
||||
|
||||
@ -12,8 +12,6 @@
|
||||
// compile-flags: --test
|
||||
|
||||
#![crate_type = "proc-macro"]
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro, proc_macro_lib)]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
|
||||
@ -11,7 +11,6 @@
|
||||
// aux-build:expand-with-a-macro.rs
|
||||
// ignore-stage1
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![deny(warnings)]
|
||||
|
||||
#[macro_use]
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// aux-build:derive-atob.rs
|
||||
// aux-build:derive-ctod.rs
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate derive_atob;
|
||||
#[macro_use]
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// aux-build:derive-a.rs
|
||||
// ignore-stage1
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate derive_a;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// aux-build:derive-nothing.rs
|
||||
// ignore-stage1
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate derive_nothing;
|
||||
|
||||
|
||||
@ -11,8 +11,6 @@
|
||||
// aux-build:derive-a.rs
|
||||
// aux-build:derive-reexport.rs
|
||||
|
||||
#![feature(proc_macro)]
|
||||
|
||||
#[macro_use]
|
||||
extern crate derive_reexport;
|
||||
|
||||
|
||||
@ -10,8 +10,6 @@
|
||||
|
||||
// no-prefer-dynamic
|
||||
|
||||
#![feature(proc_macro)]
|
||||
#![feature(proc_macro_lib)]
|
||||
#![crate_type = "proc-macro"]
|
||||
|
||||
extern crate proc_macro;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user