privacy_errors: Vec<PrivacyError<'a>>,
ambiguity_errors: Vec<AmbiguityError<'a>>,
+ gated_errors: FxHashSet<Span>,
disallowed_shadowing: Vec<&'a LegacyBinding<'a>>,
arenas: &'a ResolverArenas<'a>,
privacy_errors: Vec::new(),
ambiguity_errors: Vec::new(),
+ gated_errors: FxHashSet(),
disallowed_shadowing: Vec::new(),
arenas: arenas,
use syntax::ext::tt::macro_rules;
use syntax::feature_gate::{self, emit_feature_err, GateIssue};
use syntax::fold::{self, Folder};
+use syntax::parse::parser::PathStyle;
+use syntax::parse::token::{self, Token};
use syntax::ptr::P;
use syntax::symbol::{Symbol, keywords};
-use syntax::tokenstream::TokenStream;
+use syntax::tokenstream::{TokenStream, TokenTree, Delimited};
use syntax::util::lev_distance::find_best_match_for_name;
use syntax_pos::{Span, DUMMY_SP};
let name = unwrap_or!(attrs[i].name(), continue);
if name == "derive" {
- let mut traits = match attrs[i].meta_item_list() {
- Some(traits) => traits,
- _ => continue,
+ let result = attrs[i].parse_list(&self.session.parse_sess,
+ |parser| parser.parse_path(PathStyle::Mod));
+ let mut traits = match result {
+ Ok(traits) => traits,
+ Err(mut e) => {
+ e.cancel();
+ continue
+ }
};
for j in 0..traits.len() {
- let legacy_name = Symbol::intern(&match traits[j].word() {
- Some(..) => format!("derive_{}", traits[j].name().unwrap()),
- None => continue,
- });
+ if traits[j].segments.len() > 1 {
+ continue
+ }
+ let trait_name = traits[j].segments[0].identifier.name;
+ let legacy_name = Symbol::intern(&format!("derive_{}", trait_name));
if !self.builtin_macros.contains_key(&legacy_name) {
continue
}
if traits.is_empty() {
attrs.remove(i);
} else {
- attrs[i].tokens = ast::MetaItemKind::List(traits).tokens(attrs[i].span);
+ let mut tokens = Vec::new();
+ for (i, path) in traits.iter().enumerate() {
+ if i > 0 {
+ tokens.push(TokenTree::Token(attrs[i].span, Token::Comma).into());
+ }
+ for (j, segment) in path.segments.iter().enumerate() {
+ if j > 0 {
+ tokens.push(TokenTree::Token(path.span, Token::ModSep).into());
+ }
+ let tok = Token::Ident(segment.identifier);
+ tokens.push(TokenTree::Token(path.span, tok).into());
+ }
+ }
+ attrs[i].tokens = TokenTree::Delimited(attrs[i].span, Delimited {
+ delim: token::Paren,
+ tts: TokenStream::concat(tokens).into(),
+ }).into();
}
return Some(ast::Attribute {
path: ast::Path::from_ident(span, Ident::with_empty_ctxt(legacy_name)),
InvocationKind::Bang { ref mac, .. } => {
return self.resolve_macro_to_def(scope, &mac.node.path, MacroKind::Bang, force);
}
- InvocationKind::Derive { name, span, .. } => {
- let path = ast::Path::from_ident(span, Ident::with_empty_ctxt(name));
- return self.resolve_macro_to_def(scope, &path, MacroKind::Derive, force);
+ InvocationKind::Derive { ref path, .. } => {
+ return self.resolve_macro_to_def(scope, path, MacroKind::Derive, force);
}
};
1 => path.segments[0].identifier.name,
_ => return Err(determinacy),
};
- for &(name, span) in traits {
- let path = ast::Path::from_ident(span, Ident::with_empty_ctxt(name));
- match self.resolve_macro(scope, &path, MacroKind::Derive, force) {
+ for path in traits {
+ match self.resolve_macro(scope, path, MacroKind::Derive, force) {
Ok(ext) => if let SyntaxExtension::ProcMacroDerive(_, ref inert_attrs) = *ext {
if inert_attrs.contains(&attr_name) {
// FIXME(jseyfried) Avoid `mem::replace` here.
self.current_module = invocation.module.get();
if path.len() > 1 {
- if !self.use_extern_macros {
+ if !self.use_extern_macros && self.gated_errors.insert(span) {
let msg = "non-ident macro paths are experimental";
let feature = "use_extern_macros";
emit_feature_err(&self.session.parse_sess, feature, span, GateIssue::Language, msg);
use ast;
use ast::{AttrId, Attribute, Name, Ident};
use ast::{MetaItem, MetaItemKind, NestedMetaItem, NestedMetaItemKind};
-use ast::{Lit, LitKind, Expr, Item, Local, Stmt, StmtKind};
+use ast::{Lit, LitKind, Expr, ExprKind, Item, Local, Stmt, StmtKind};
use codemap::{Spanned, spanned, dummy_spanned, mk_sp};
use syntax_pos::{Span, BytePos, DUMMY_SP};
use errors::Handler;
})
}
+ pub fn parse<'a, T, F>(&self, sess: &'a ParseSess, mut f: F) -> PResult<'a, T>
+ where F: FnMut(&mut Parser<'a>) -> PResult<'a, T>,
+ {
+ let mut parser = Parser::new(sess, self.tokens.clone(), None, false);
+ let result = f(&mut parser)?;
+ if parser.token != token::Eof {
+ parser.unexpected()?;
+ }
+ Ok(result)
+ }
+
+ pub fn parse_list<'a, T, F>(&self, sess: &'a ParseSess, mut f: F) -> PResult<'a, Vec<T>>
+ where F: FnMut(&mut Parser<'a>) -> PResult<'a, T>,
+ {
+ if self.tokens.is_empty() {
+ return Ok(Vec::new());
+ }
+ self.parse(sess, |parser| {
+ parser.expect(&token::OpenDelim(token::Paren))?;
+ let mut list = Vec::new();
+ while !parser.eat(&token::CloseDelim(token::Paren)) {
+ list.push(f(parser)?);
+ if !parser.eat(&token::Comma) {
+ parser.expect(&token::CloseDelim(token::Paren))?;
+ break
+ }
+ }
+ Ok(list)
+ })
+ }
+
pub fn parse_meta<'a>(&self, sess: &'a ParseSess) -> PResult<'a, MetaItem> {
if self.path.segments.len() > 1 {
sess.span_diagnostic.span_err(self.path.span, "expected ident, found path");
Ok(MetaItem {
name: self.path.segments.last().unwrap().identifier.name,
- node: Parser::new(sess, self.tokens.clone(), None, false).parse_meta_item_kind()?,
+ node: self.parse(sess, |parser| parser.parse_meta_item_kind())?,
span: self.span,
})
}
{
let (mut span, name) = match tokens.next() {
Some(TokenTree::Token(span, Token::Ident(ident))) => (span, ident.name),
+ Some(TokenTree::Token(_, Token::Interpolated(ref nt))) => return match **nt {
+ token::Nonterminal::NtMeta(ref meta) => Some(meta.clone()),
+ _ => None,
+ },
_ => return None,
};
let node = match MetaItemKind::from_tokens(tokens) {
match token {
Token::Ident(ident) if ident.name == "true" => Some(LitKind::Bool(true)),
Token::Ident(ident) if ident.name == "false" => Some(LitKind::Bool(false)),
+ Token::Interpolated(ref nt) => match **nt {
+ token::NtExpr(ref v) => match v.node {
+ ExprKind::Lit(ref lit) => Some(lit.node.clone()),
+ _ => None,
+ },
+ _ => None,
+ },
Token::Literal(lit, suf) => {
let (suffix_illegal, result) = parse::lit_token(lit, suf, None);
if suffix_illegal && suf.is_some() {
use {fold, attr};
use ast;
use codemap::Spanned;
-use parse::ParseSess;
-use ptr::P;
+use parse::{token, ParseSess};
+use syntax_pos::Span;
+use ptr::P;
use util::small_vector::SmallVector;
/// A folder that strips out items that do not belong in the current configuration.
return Some(attr);
}
- let attr_list = match attr.meta_item_list() {
- Some(attr_list) => attr_list,
- None => {
- let msg = "expected `#[cfg_attr(<cfg pattern>, <attr>)]`";
- self.sess.span_diagnostic.span_err(attr.span, msg);
- return None;
- }
- };
-
- let (cfg, mi) = match (attr_list.len(), attr_list.get(0), attr_list.get(1)) {
- (2, Some(cfg), Some(mi)) => (cfg, mi),
- _ => {
- let msg = "expected `#[cfg_attr(<cfg pattern>, <attr>)]`";
- self.sess.span_diagnostic.span_err(attr.span, msg);
+ let (cfg, path, tokens, span) = match attr.parse(self.sess, |parser| {
+ parser.expect(&token::OpenDelim(token::Paren))?;
+ let cfg = parser.parse_meta_item()?;
+ parser.expect(&token::Comma)?;
+ let lo = parser.span.lo;
+ let (path, tokens) = parser.parse_path_and_tokens()?;
+ parser.expect(&token::CloseDelim(token::Paren))?;
+ Ok((cfg, path, tokens, Span { lo: lo, ..parser.prev_span }))
+ }) {
+ Ok(result) => result,
+ Err(mut e) => {
+ e.emit();
return None;
}
};
- use attr::cfg_matches;
- match (cfg.meta_item(), mi.meta_item()) {
- (Some(cfg), Some(mi)) =>
- if cfg_matches(&cfg, self.sess, self.features) {
- self.process_cfg_attr(ast::Attribute {
- id: attr::mk_attr_id(),
- style: attr.style,
- path: ast::Path::from_ident(mi.span, ast::Ident::with_empty_ctxt(mi.name)),
- tokens: mi.node.tokens(mi.span),
- is_sugared_doc: false,
- span: mi.span,
- })
- } else {
- None
- },
- _ => {
- let msg = "unexpected literal(s) in `#[cfg_attr(<cfg pattern>, <attr>)]`";
- self.sess.span_diagnostic.span_err(attr.span, msg);
- None
- }
+ if attr::cfg_matches(&cfg, self.sess, self.features) {
+ self.process_cfg_attr(ast::Attribute {
+ id: attr::mk_attr_id(),
+ style: attr.style,
+ path: path,
+ tokens: tokens,
+ is_sugared_doc: false,
+ span: span,
+ })
+ } else {
+ None
}
}
return false;
}
- let mis = attr.meta_item_list();
- let mis = match mis {
- Some(ref mis) if is_cfg(&attr) => mis,
- _ => return true
+ let mis = if !is_cfg(&attr) {
+ return true;
+ } else if let Some(mis) = attr.meta_item_list() {
+ mis
+ } else {
+ return true;
};
if mis.len() != 1 {
use {ast, codemap};
use ext::base::ExtCtxt;
use ext::build::AstBuilder;
+use parse::parser::PathStyle;
use symbol::Symbol;
use syntax_pos::Span;
-pub fn collect_derives(cx: &mut ExtCtxt, attrs: &mut Vec<ast::Attribute>) -> Vec<(Symbol, Span)> {
+pub fn collect_derives(cx: &mut ExtCtxt, attrs: &mut Vec<ast::Attribute>) -> Vec<ast::Path> {
let mut result = Vec::new();
attrs.retain(|attr| {
if attr.path != "derive" {
return true;
}
- if attr.value_str().is_some() {
- cx.span_err(attr.span, "unexpected value in `derive`");
- return false;
- }
-
- let traits = attr.meta_item_list().unwrap_or_else(Vec::new);
- if traits.is_empty() {
- cx.span_warn(attr.span, "empty trait list in `derive`");
- return false;
- }
-
- for titem in traits {
- if titem.word().is_none() {
- cx.span_err(titem.span, "malformed `derive` entry");
- return false;
+ match attr.parse_list(cx.parse_sess, |parser| parser.parse_path(PathStyle::Mod)) {
+ Ok(ref traits) if traits.is_empty() => {
+ cx.span_warn(attr.span, "empty trait list in `derive`");
+ false
+ }
+ Ok(traits) => {
+ result.extend(traits);
+ true
+ }
+ Err(mut e) => {
+ e.emit();
+ false
}
- result.push((titem.name().unwrap(), titem.span));
}
-
- true
});
result
}
}
}
-pub fn add_derived_markers<T: HasAttrs>(cx: &mut ExtCtxt, traits: &[(Symbol, Span)], item: T) -> T {
+pub fn add_derived_markers<T: HasAttrs>(cx: &mut ExtCtxt, traits: &[ast::Path], item: T) -> T {
let span = match traits.get(0) {
- Some(&(_, span)) => span,
+ Some(path) => path.span,
None => return item,
};
item.map_attrs(|mut attrs| {
- if traits.iter().any(|&(name, _)| name == "PartialEq") &&
- traits.iter().any(|&(name, _)| name == "Eq") {
+ if traits.iter().any(|path| *path == "PartialEq") &&
+ traits.iter().any(|path| *path == "Eq") {
let span = allow_unstable(cx, span, "derive(PartialEq, Eq)");
let meta = cx.meta_word(span, Symbol::intern("structural_match"));
attrs.push(cx.attribute(span, meta));
}
- if traits.iter().any(|&(name, _)| name == "Copy") &&
- traits.iter().any(|&(name, _)| name == "Clone") {
+ if traits.iter().any(|path| *path == "Copy") &&
+ traits.iter().any(|path| *path == "Clone") {
let span = allow_unstable(cx, span, "derive(Copy, Clone)");
let meta = cx.meta_word(span, Symbol::intern("rustc_copy_clone_marker"));
attrs.push(cx.attribute(span, meta));
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-use ast::{self, Block, Ident, PatKind};
-use ast::{Name, MacStmtStyle, StmtKind, ItemKind};
+use ast::{self, Block, Ident, PatKind, Path};
+use ast::{MacStmtStyle, StmtKind, ItemKind};
use attr::{self, HasAttrs};
use codemap::{ExpnInfo, NameAndSpan, MacroBang, MacroAttribute};
use config::{is_test_or_bench, StripUnconfigured};
use std_inject;
use symbol::Symbol;
use symbol::keywords;
-use syntax_pos::{self, Span, ExpnId};
+use syntax_pos::{Span, ExpnId, DUMMY_SP};
use tokenstream::TokenStream;
use util::small_vector::SmallVector;
use visit::Visitor;
},
Attr {
attr: Option<ast::Attribute>,
- traits: Vec<(Symbol, Span)>,
+ traits: Vec<Path>,
item: Annotatable,
},
Derive {
- name: Symbol,
- span: Span,
+ path: Path,
item: Annotatable,
},
}
match self.kind {
InvocationKind::Bang { span, .. } => span,
InvocationKind::Attr { attr: Some(ref attr), .. } => attr.span,
- InvocationKind::Attr { attr: None, .. } => syntax_pos::DUMMY_SP,
- InvocationKind::Derive { span, .. } => span,
+ InvocationKind::Attr { attr: None, .. } => DUMMY_SP,
+ InvocationKind::Derive { ref path, .. } => path.span,
}
}
}
add_derived_markers(&mut self.cx, &traits, item.clone());
let derives = derives.entry(invoc.expansion_data.mark).or_insert_with(Vec::new);
- for &(name, span) in &traits {
+ for path in &traits {
let mark = Mark::fresh();
derives.push(mark);
- let path = ast::Path::from_ident(span, Ident::with_empty_ctxt(name));
let item = match self.cx.resolver.resolve_macro(
- Mark::root(), &path, MacroKind::Derive, false) {
+ Mark::root(), path, MacroKind::Derive, false) {
Ok(ext) => match *ext {
SyntaxExtension::BuiltinDerive(..) => item_with_markers.clone(),
_ => item.clone(),
_ => item.clone(),
};
invocations.push(Invocation {
- kind: InvocationKind::Derive { name: name, span: span, item: item },
+ kind: InvocationKind::Derive { path: path.clone(), item: item },
expansion_kind: invoc.expansion_kind,
expansion_data: ExpansionData {
mark: mark,
};
attr::mark_used(&attr);
- let name = attr.path.segments[0].identifier.name;
self.cx.bt_push(ExpnInfo {
call_site: attr.span,
callee: NameAndSpan {
- format: MacroAttribute(name),
+ format: MacroAttribute(Symbol::intern(&format!("{}", attr.path))),
span: Some(attr.span),
allow_internal_unstable: false,
}
};
let tok_result = mac.expand(self.cx, attr.span, attr.tokens.clone(), item_toks);
- self.parse_expansion(tok_result, kind, name, span)
+ self.parse_expansion(tok_result, kind, &attr.path, span)
}
SyntaxExtension::ProcMacroDerive(..) | SyntaxExtension::BuiltinDerive(..) => {
- self.cx.span_err(attr.span, &format!("`{}` is a derive mode", name));
+ self.cx.span_err(attr.span, &format!("`{}` is a derive mode", attr.path));
kind.dummy(attr.span)
}
_ => {
- let msg = &format!("macro `{}` may not be used in attributes", name);
+ let msg = &format!("macro `{}` may not be used in attributes", attr.path);
self.cx.span_err(attr.span, &msg);
kind.dummy(attr.span)
}
};
let path = &mac.node.path;
- let extname = path.segments.last().unwrap().identifier.name;
let ident = ident.unwrap_or(keywords::Invalid.ident());
let marked_tts =
noop_fold_tts(mac.node.stream(), &mut Marker { mark: mark, expn_id: None });
NormalTT(ref expandfun, exp_span, allow_internal_unstable) => {
if ident.name != keywords::Invalid.name() {
let msg =
- format!("macro {}! expects no ident argument, given '{}'", extname, ident);
+ format!("macro {}! expects no ident argument, given '{}'", path, ident);
self.cx.span_err(path.span, &msg);
return kind.dummy(span);
}
self.cx.bt_push(ExpnInfo {
call_site: span,
callee: NameAndSpan {
- format: MacroBang(extname),
+ format: MacroBang(Symbol::intern(&format!("{}", path))),
span: exp_span,
allow_internal_unstable: allow_internal_unstable,
},
IdentTT(ref expander, tt_span, allow_internal_unstable) => {
if ident.name == keywords::Invalid.name() {
self.cx.span_err(path.span,
- &format!("macro {}! expects an ident argument", extname));
+ &format!("macro {}! expects an ident argument", path));
return kind.dummy(span);
};
self.cx.bt_push(ExpnInfo {
call_site: span,
callee: NameAndSpan {
- format: MacroBang(extname),
+ format: MacroBang(Symbol::intern(&format!("{}", path))),
span: tt_span,
allow_internal_unstable: allow_internal_unstable,
}
MultiDecorator(..) | MultiModifier(..) | SyntaxExtension::AttrProcMacro(..) => {
self.cx.span_err(path.span,
- &format!("`{}` can only be used in attributes", extname));
+ &format!("`{}` can only be used in attributes", path));
return kind.dummy(span);
}
SyntaxExtension::ProcMacroDerive(..) | SyntaxExtension::BuiltinDerive(..) => {
- self.cx.span_err(path.span, &format!("`{}` is a derive mode", extname));
+ self.cx.span_err(path.span, &format!("`{}` is a derive mode", path));
return kind.dummy(span);
}
SyntaxExtension::ProcMacro(ref expandfun) => {
if ident.name != keywords::Invalid.name() {
let msg =
- format!("macro {}! expects no ident argument, given '{}'", extname, ident);
+ format!("macro {}! expects no ident argument, given '{}'", path, ident);
self.cx.span_err(path.span, &msg);
return kind.dummy(span);
}
self.cx.bt_push(ExpnInfo {
call_site: span,
callee: NameAndSpan {
- format: MacroBang(extname),
+ format: MacroBang(Symbol::intern(&format!("{}", path))),
// FIXME procedural macros do not have proper span info
// yet, when they do, we should use it here.
span: None,
});
let tok_result = expandfun.expand(self.cx, span, marked_tts);
- Some(self.parse_expansion(tok_result, kind, extname, span))
+ Some(self.parse_expansion(tok_result, kind, path, span))
}
};
/// Expand a derive invocation. Returns the result of expansion.
fn expand_derive_invoc(&mut self, invoc: Invocation, ext: Rc<SyntaxExtension>) -> Expansion {
let Invocation { expansion_kind: kind, .. } = invoc;
- let (name, span, item) = match invoc.kind {
- InvocationKind::Derive { name, span, item } => (name, span, item),
+ let (path, item) = match invoc.kind {
+ InvocationKind::Derive { path, item } => (path, item),
_ => unreachable!(),
};
- let mitem = ast::MetaItem { name: name, span: span, node: ast::MetaItemKind::Word };
- let pretty_name = Symbol::intern(&format!("derive({})", name));
+ let pretty_name = Symbol::intern(&format!("derive({})", path));
+ let span = path.span;
+ let attr = ast::Attribute {
+ path: path, tokens: TokenStream::empty(), span: span,
+ // irrelevant:
+ id: ast::AttrId(0), style: ast::AttrStyle::Outer, is_sugared_doc: false,
+ };
self.cx.bt_push(ExpnInfo {
call_site: span,
callee: NameAndSpan {
format: MacroAttribute(pretty_name),
- span: Some(span),
+ span: None,
allow_internal_unstable: false,
}
});
}),
..span
};
- return kind.expect_from_annotatables(ext.expand(self.cx, span, &mitem, item));
+ let dummy = ast::MetaItem { // FIXME(jseyfried) avoid this
+ name: keywords::Invalid.name(),
+ span: DUMMY_SP,
+ node: ast::MetaItemKind::Word,
+ };
+ return kind.expect_from_annotatables(ext.expand(self.cx, span, &dummy, item));
}
SyntaxExtension::BuiltinDerive(func) => {
let span = Span {
..span
};
let mut items = Vec::new();
- func(self.cx, span, &mitem, &item, &mut |a| {
- items.push(a)
- });
+ func(self.cx, span, &attr.meta().unwrap(), &item, &mut |a| items.push(a));
return kind.expect_from_annotatables(items);
}
_ => {
- let msg = &format!("macro `{}` may not be used for derive attributes", name);
+ let msg = &format!("macro `{}` may not be used for derive attributes", attr.path);
self.cx.span_err(span, &msg);
kind.dummy(span)
}
}
}
- fn parse_expansion(&mut self, toks: TokenStream, kind: ExpansionKind, name: Name, span: Span)
+ fn parse_expansion(&mut self, toks: TokenStream, kind: ExpansionKind, path: &Path, span: Span)
-> Expansion {
let mut parser = self.cx.new_parser_from_tts(&toks.into_trees().collect::<Vec<_>>());
let expansion = match parser.parse_expansion(kind, false) {
return kind.dummy(span);
}
};
- parser.ensure_complete_parse(name, kind.name(), span);
+ parser.ensure_complete_parse(path, kind.name(), span);
// FIXME better span info
expansion.fold_with(&mut ChangeSpan { span: span })
}
})
}
- pub fn ensure_complete_parse(&mut self, macro_name: ast::Name, kind_name: &str, span: Span) {
+ pub fn ensure_complete_parse(&mut self, macro_path: &Path, kind_name: &str, span: Span) {
if self.token != token::Eof {
let msg = format!("macro expansion ignores token `{}` and any following",
self.this_token_to_string());
let mut err = self.diagnostic().struct_span_err(self.span, &msg);
let msg = format!("caused by the macro expansion here; the usage \
of `{}!` is likely invalid in {} context",
- macro_name, kind_name);
+ macro_path, kind_name);
err.span_note(span, &msg).emit();
}
}
fn collect_attr(&mut self,
attr: Option<ast::Attribute>,
- traits: Vec<(Symbol, Span)>,
+ traits: Vec<Path>,
item: Annotatable,
kind: ExpansionKind)
-> Expansion {
if !traits.is_empty() &&
(kind == ExpansionKind::TraitItems || kind == ExpansionKind::ImplItems) {
- self.cx.span_err(traits[0].1, "`derive` can be only be applied to items");
+ self.cx.span_err(traits[0].span, "`derive` can be only be applied to items");
return kind.expect_from_annotatables(::std::iter::once(item));
}
self.collect(kind, InvocationKind::Attr { attr: attr, traits: traits, item: item })
}
// If `item` is an attr invocation, remove and return the macro attribute.
- fn classify_item<T>(&mut self, mut item: T) -> (Option<ast::Attribute>, Vec<(Symbol, Span)>, T)
+ fn classify_item<T>(&mut self, mut item: T) -> (Option<ast::Attribute>, Vec<Path>, T)
where T: HasAttrs,
{
let (mut attr, mut traits) = (None, Vec::new());
// Detect if this is an inline module (`mod m { ... }` as opposed to `mod m;`).
// In the non-inline case, `inner` is never the dummy span (c.f. `parse_item_mod`).
// Thus, if `inner` is the dummy span, we know the module is inline.
- let inline_module = item.span.contains(inner) || inner == syntax_pos::DUMMY_SP;
+ let inline_module = item.span.contains(inner) || inner == DUMMY_SP;
if inline_module {
if let Some(path) = attr::first_attr_value_str_by_name(&item.attrs, "path") {
}
// Make sure we don't have any tokens left to parse so we don't silently drop anything.
- parser.ensure_complete_parse(macro_ident.name, kind.name(), site_span);
+ let path = ast::Path::from_ident(site_span, macro_ident);
+ parser.ensure_complete_parse(&path, kind.name(), site_span);
expansion
}
}
self.context.check_attribute(attr, false);
}
+ if self.context.features.proc_macro && attr::is_known(attr) {
+ return
+ }
+
let meta = panictry!(attr.parse_meta(&self.context.parse_sess));
if contains_novel_literal(&meta) {
gate_feature_post!(&self, attr_literals, attr.span,
use codemap::spanned;
use parse::common::SeqSep;
use parse::PResult;
-use parse::token;
-use parse::parser::{Parser, TokenType};
+use parse::token::{self, Nonterminal};
+use parse::parser::{Parser, TokenType, PathStyle};
+use tokenstream::TokenStream;
#[derive(PartialEq, Eq, Debug)]
enum InnerAttributeParsePolicy<'a> {
debug!("parse_attribute_with_inner_parse_policy: inner_parse_policy={:?} self.token={:?}",
inner_parse_policy,
self.token);
- let (span, value, mut style) = match self.token {
+ let (span, path, tokens, mut style) = match self.token {
token::Pound => {
let lo = self.span.lo;
self.bump();
};
self.expect(&token::OpenDelim(token::Bracket))?;
- let meta_item = self.parse_meta_item()?;
+ let (path, tokens) = self.parse_path_and_tokens()?;
self.expect(&token::CloseDelim(token::Bracket))?;
let hi = self.prev_span.hi;
- (mk_sp(lo, hi), meta_item, style)
+ (mk_sp(lo, hi), path, tokens, style)
}
_ => {
let token_str = self.this_token_to_string();
Ok(ast::Attribute {
id: attr::mk_attr_id(),
style: style,
- path: ast::Path::from_ident(value.span, ast::Ident::with_empty_ctxt(value.name)),
- tokens: value.node.tokens(value.span),
+ path: path,
+ tokens: tokens,
is_sugared_doc: false,
span: span,
})
}
+ pub fn parse_path_and_tokens(&mut self) -> PResult<'a, (ast::Path, TokenStream)> {
+ let meta = match self.token {
+ token::Interpolated(ref nt) => match **nt {
+ Nonterminal::NtMeta(ref meta) => Some(meta.clone()),
+ _ => None,
+ },
+ _ => None,
+ };
+ Ok(if let Some(meta) = meta {
+ self.bump();
+ (ast::Path::from_ident(meta.span, ast::Ident::with_empty_ctxt(meta.name)),
+ meta.node.tokens(meta.span))
+ } else {
+ (self.parse_path(PathStyle::Mod)?, self.parse_tokens())
+ })
+ }
+
/// Parse attributes that appear after the opening of an item. These should
/// be preceded by an exclamation mark, but we accept and warn about one
/// terminated by a semicolon.
Ok(tts)
}
+ pub fn parse_tokens(&mut self) -> TokenStream {
+ let mut result = Vec::new();
+ loop {
+ match self.token {
+ token::Eof | token::CloseDelim(..) => break,
+ _ => result.push(self.parse_token_tree().into()),
+ }
+ }
+ TokenStream::concat(result)
+ }
+
/// Parse a prefix-unary-operator expr
pub fn parse_prefix_expr(&mut self,
already_parsed_attrs: Option<ThinVec<Attribute>>)
--- /dev/null
+// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#[doc = $not_there] //~ error: unexpected token: `$`
+fn main() { }
// except according to those terms.
#[derive(Copy(Bad))]
-//~^ ERROR malformed `derive` entry
+//~^ ERROR expected one of `)`, `,`, or `::`, found `(`
struct Test1;
#[derive(Copy="bad")]
-//~^ ERROR malformed `derive` entry
+//~^ ERROR expected one of `)`, `,`, or `::`, found `=`
struct Test2;
#[derive()]
--- /dev/null
+// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+#![feature(attr_literals)]
+
+#[path = 1usize] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1u8] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1u16] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1u32] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1u64] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1isize] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1i8] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1i16] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1i32] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1i64] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1.0f32] //~ ERROR: suffixed literals are not allowed in attributes
+#[path = 1.0f64] //~ ERROR: suffixed literals are not allowed in attributes
+fn main() { }
// option. This file may not be copied, modified, or distributed
// except according to those terms.
-// compile-flags: -Z parse-only
-
-// error-pattern:expected one of `=` or `]`
-
// asterisk is bogus
-#[attr*]
+#[path*] //~ ERROR expected one of `(` or `=`
mod m {}
+++ /dev/null
-// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// compile-flags: -Z parse-only
-
-#[doc = $not_there] //~ error: unexpected token: `$`
-fn main() { }
+++ /dev/null
-// Copyright 2012 The Rust Project Developers. See the COPYRIGHT
-// file at the top-level directory of this distribution and at
-// http://rust-lang.org/COPYRIGHT.
-//
-// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
-// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
-// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
-// option. This file may not be copied, modified, or distributed
-// except according to those terms.
-
-// compile-flags: -Z parse-only
-
-#[foo = 1usize] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1u8] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1u16] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1u32] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1u64] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1isize] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1i8] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1i16] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1i32] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1i64] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1.0f32] //~ ERROR: suffixed literals are not allowed in attributes
-#[foo = 1.0f64] //~ ERROR: suffixed literals are not allowed in attributes
-fn main() { }
--> $DIR/E0536.rs:11:7
|
11 | #[cfg(not())] //~ ERROR E0536
- | ^^^^^
+ | ^^^
error: aborting due to previous error
--> $DIR/E0537.rs:11:7
|
11 | #[cfg(unknown())] //~ ERROR E0537
- | ^^^^^^^^^
+ | ^^^^^^^
error: aborting due to previous error
projects / rust.git / commitdiff