Get tests passing
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b2ddd937b2
commit
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4 changed files with 35 additions and 81 deletions
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@ -398,7 +398,8 @@ impl<'a> TraitDef<'a> {
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generics)
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}
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_ => {
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cx.span_err(mitem.span, "`derive` may only be applied to structs and enums");
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cx.span_err(mitem.span,
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"`derive` may only be applied to structs and enums");
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return;
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}
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};
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@ -417,7 +418,7 @@ impl<'a> TraitDef<'a> {
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})))
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}
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_ => {
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cx.span_err(mitem.span, "`derive` may only be applied to structs and enums");
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cx.span_err(mitem.span, "`derive` may only be applied to structs and enums");
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}
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}
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}
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@ -19,7 +19,7 @@ extern crate rustc;
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use syntax::ast;
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use syntax::codemap::Span;
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use syntax::ext::base::{Decorator, ExtCtxt};
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use syntax::ext::base::{Decorator, ExtCtxt, Annotatable};
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use syntax::ext::build::AstBuilder;
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use syntax::ext::deriving::generic::{cs_fold, TraitDef, MethodDef, combine_substructure};
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use syntax::ext::deriving::generic::ty::{Literal, LifetimeBounds, Path, borrowed_explicit_self};
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@ -70,5 +70,13 @@ fn expand(cx: &mut ExtCtxt,
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],
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};
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trait_def.expand(cx, mitem, item, push)
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trait_def.expand(cx,
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mitem,
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Annotatable::Item(P(item.clone())),
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&mut |i| {
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match i {
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Annotatable::Item(i) => push(i),
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_ => panic!("Not an item")
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}
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})
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}
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@ -10,13 +10,12 @@
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// force-host
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#![feature(plugin_registrar, quote)]
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#![feature(box_syntax, rustc_private)]
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#![feature(plugin_registrar, quote, rustc_private)]
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extern crate syntax;
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extern crate rustc;
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use syntax::ast::{self, TokenTree, Item, MetaItem, Method, ImplItem, TraitItem};
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use syntax::ast::{self, TokenTree, Item, MetaItem, ImplItem, TraitItem};
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use syntax::codemap::Span;
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use syntax::ext::base::*;
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use syntax::parse::{self, token};
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@ -25,7 +24,6 @@ use rustc::plugin::Registry;
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#[macro_export]
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macro_rules! exported_macro { () => (2) }
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macro_rules! unexported_macro { () => (3) }
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#[plugin_registrar]
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@ -42,7 +40,8 @@ pub fn plugin_registrar(reg: &mut Registry) {
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MultiModifier(Box::new(expand_into_foo_multi)));
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reg.register_syntax_extension(
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token::intern("duplicate"),
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MultiDecorator(box expand_duplicate));
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// FIXME (#22405): Replace `Box::new` with `box` here when/if possible.
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MultiDecorator(Box::new(expand_duplicate)));
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}
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fn expand_make_a_1(cx: &mut ExtCtxt, sp: Span, tts: &[TokenTree])
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@ -109,13 +108,13 @@ fn expand_into_foo_multi(cx: &mut ExtCtxt,
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fn expand_duplicate(cx: &mut ExtCtxt,
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sp: Span,
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mi: &MetaItem,
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it: &Annotatable,
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mut push: Box<FnMut(Annotatable)>)
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it: Annotatable,
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push: &mut FnMut(Annotatable))
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{
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let copy_name = match mi.node {
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ast::MetaItem_::MetaList(_, ref xs) => {
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if let ast::MetaItem_::MetaWord(ref w) = xs[0].node {
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token::str_to_ident(w.get())
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token::str_to_ident(&w)
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} else {
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cx.span_err(mi.span, "Expected word");
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return;
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@ -136,75 +135,18 @@ fn expand_duplicate(cx: &mut ExtCtxt,
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push(Annotatable::Item(P(new_it)));
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}
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Annotatable::ImplItem(it) => {
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match it {
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ImplItem::MethodImplItem(m) => {
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let mut new_m = (*m).clone();
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new_m.attrs.clear();
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replace_method_name(&mut new_m.node, copy_name);
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push(Annotatable::ImplItem(ImplItem::MethodImplItem(P(new_m))));
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}
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ImplItem::TypeImplItem(t) => {
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let mut new_t = (*t).clone();
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new_t.attrs.clear();
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new_t.ident = copy_name;
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push(Annotatable::ImplItem(ImplItem::TypeImplItem(P(new_t))));
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}
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}
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let mut new_it = (*it).clone();
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new_it.attrs.clear();
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new_it.ident = copy_name;
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push(Annotatable::ImplItem(P(new_it)));
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}
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Annotatable::TraitItem(it) => {
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match it {
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TraitItem::RequiredMethod(rm) => {
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let mut new_rm = rm.clone();
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new_rm.attrs.clear();
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new_rm.ident = copy_name;
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push(Annotatable::TraitItem(TraitItem::RequiredMethod(new_rm)));
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}
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TraitItem::ProvidedMethod(pm) => {
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let mut new_pm = (*pm).clone();
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new_pm.attrs.clear();
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replace_method_name(&mut new_pm.node, copy_name);
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push(Annotatable::TraitItem(TraitItem::ProvidedMethod(P(new_pm))));
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}
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TraitItem::TypeTraitItem(t) => {
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let mut new_t = (*t).clone();
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new_t.attrs.clear();
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new_t.ty_param.ident = copy_name;
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push(Annotatable::TraitItem(TraitItem::TypeTraitItem(P(new_t))));
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}
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}
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Annotatable::TraitItem(tt) => {
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let mut new_it = (*tt).clone();
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new_it.attrs.clear();
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new_it.ident = copy_name;
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push(Annotatable::TraitItem(P(new_it)));
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}
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}
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fn replace_method_name(m: &mut ast::Method_, i: ast::Ident) {
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if let &mut ast::Method_::MethDecl(ref mut ident, _, _, _, _, _, _, _) = m {
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*ident = i
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}
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}
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}
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fn expand_forged_ident(cx: &mut ExtCtxt, sp: Span, tts: &[TokenTree]) -> Box<MacResult+'static> {
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use syntax::ext::quote::rt::*;
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if !tts.is_empty() {
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cx.span_fatal(sp, "forged_ident takes no arguments");
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}
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// Most of this is modelled after the expansion of the `quote_expr!`
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// macro ...
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let parse_sess = cx.parse_sess();
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let cfg = cx.cfg();
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// ... except this is where we inject a forged identifier,
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// and deliberately do not call `cx.parse_tts_with_hygiene`
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// (because we are testing that this will be *rejected*
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// by the default parser).
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let expr = {
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let tt = cx.parse_tts("\x00name_2,ctxt_0\x00".to_string());
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let mut parser = new_parser_from_tts(parse_sess, cfg, tt);
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parser.parse_expr()
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};
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MacEager::expr(expr)
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}
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pub fn foo() {}
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@ -11,12 +11,15 @@
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// aux-build:macro_crate_test.rs
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// ignore-stage1
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#![feature(plugin)]
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#![feature(plugin, custom_attribute)]
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#![plugin(macro_crate_test)]
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#[plugin] #[no_link]
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#[macro_use]
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#[no_link]
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extern crate macro_crate_test;
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// The duplicate macro will create a copy of the item with the given identifier
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// The duplicate macro will create a copy of the item with the given identifier.
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#[duplicate(MyCopy)]
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struct MyStruct {
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number: i32
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