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Unconditionally capture tokens for attributes. 

This allows us to avoid synthesizing tokens in `prepend_attr`, since we
have the original tokens available.

We still need to synthesize tokens when expanding `cfg_attr`,
but this is an unavoidable consequence of the syntax of `cfg_attr` -
the user does not supply the `#` and `[]` tokens that a `cfg_attr`
expands to.
This commit is contained in:
Aaron Hill 2020-09-26 19:33:42 -04:00
parent 1eaadebb3d
commit b9b2546417
No known key found for this signature in database
GPG Key ID: B4087E510E98B164
15 changed files with 153 additions and 120 deletions
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1
compiler/rustc_ast/src/ast.rs
View File

@ -2423,6 +2423,7 @@ pub struct Attribute {
/// or the construct this attribute is contained within (inner).
pub style: AttrStyle,
pub span: Span,
pub tokens: Option<LazyTokenStream>,
}
#[derive(Clone, Encodable, Decodable, Debug)]

10
compiler/rustc_ast/src/attr/mod.rs
View File

@ -325,7 +325,7 @@ pub fn mk_attr(style: AttrStyle, path: Path, args: MacArgs, span: Span) -> Attri
}
pub fn mk_attr_from_item(style: AttrStyle, item: AttrItem, span: Span) -> Attribute {
Attribute { kind: AttrKind::Normal(item), id: mk_attr_id(), style, span }
Attribute { kind: AttrKind::Normal(item), id: mk_attr_id(), style, span, tokens: None }
}
/// Returns an inner attribute with the given value and span.
@ -344,7 +344,13 @@ pub fn mk_doc_comment(
data: Symbol,
span: Span,
) -> Attribute {
Attribute { kind: AttrKind::DocComment(comment_kind, data), id: mk_attr_id(), style, span }
Attribute {
kind: AttrKind::DocComment(comment_kind, data),
id: mk_attr_id(),
style,
span,
tokens: None,
}
}
pub fn list_contains_name(items: &[NestedMetaItem], name: Symbol) -> bool {

2
compiler/rustc_ast/src/mut_visit.rs
View File

@ -577,7 +577,7 @@ pub fn noop_visit_local<T: MutVisitor>(local: &mut P<Local>, vis: &mut T) {
}
pub fn noop_visit_attribute<T: MutVisitor>(attr: &mut Attribute, vis: &mut T) {
let Attribute { kind, id: _, style: _, span } = attr;
let Attribute { kind, id: _, style: _, span, tokens: _ } = attr;
match kind {
AttrKind::Normal(AttrItem { path, args, tokens: _ }) => {
vis.visit_path(path);

8
compiler/rustc_ast_lowering/src/expr.rs
View File

@ -210,9 +210,9 @@ impl<'hir> LoweringContext<'_, 'hir> {
ex.span = e.span;
}
// Merge attributes into the inner expression.
let mut attrs = e.attrs.clone();
let mut attrs: Vec<_> = e.attrs.iter().map(|a| self.lower_attr(a)).collect();
attrs.extend::<Vec<_>>(ex.attrs.into());
ex.attrs = attrs;
ex.attrs = attrs.into();
return ex;
}
@ -1471,13 +1471,15 @@ impl<'hir> LoweringContext<'_, 'hir> {
hir::MatchSource::ForLoopDesugar,
));
let attrs: Vec<_> = e.attrs.iter().map(|a| self.lower_attr(a)).collect();
// This is effectively `{ let _result = ...; _result }`.
// The construct was introduced in #21984 and is necessary to make sure that
// temporaries in the `head` expression are dropped and do not leak to the
// surrounding scope of the `match` since the `match` is not a terminating scope.
//
// Also, add the attributes to the outer returned expr node.
self.expr_drop_temps_mut(desugared_span, match_expr, e.attrs.clone())
self.expr_drop_temps_mut(desugared_span, match_expr, attrs.into())
}
/// Desugar `ExprKind::Try` from: `<expr>?` into:

5
compiler/rustc_ast_lowering/src/lib.rs
View File

@ -972,7 +972,8 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
AttrKind::DocComment(comment_kind, data) => AttrKind::DocComment(comment_kind, data),
};
Attribute { kind, id: attr.id, style: attr.style, span: attr.span }
// Tokens aren't needed after macro expansion and parsing
Attribute { kind, id: attr.id, style: attr.style, span: attr.span, tokens: None }
}
fn lower_mac_args(&mut self, args: &MacArgs) -> MacArgs {
@ -1713,7 +1714,7 @@ impl<'a, 'hir> LoweringContext<'a, 'hir> {
pat: self.lower_pat(&l.pat),
init,
span: l.span,
attrs: l.attrs.clone(),
attrs: l.attrs.iter().map(|a| self.lower_attr(a)).collect::<Vec<_>>().into(),
source: hir::LocalSource::Normal,
},
ids,

2
compiler/rustc_builtin_macros/src/cmdline_attrs.rs
View File

@ -15,7 +15,7 @@ pub fn inject(mut krate: ast::Crate, parse_sess: &ParseSess, attrs: &[String]) -
);
let start_span = parser.token.span;
let AttrItem { path, args, tokens: _ } = match parser.parse_attr_item() {
let AttrItem { path, args, tokens: _ } = match parser.parse_attr_item(false) {
Ok(ai) => ai,
Err(mut err) => {
err.emit();

35
compiler/rustc_expand/src/config.rs
View File

@ -3,10 +3,13 @@
use rustc_ast::attr::HasAttrs;
use rustc_ast::mut_visit::*;
use rustc_ast::ptr::P;
use rustc_ast::token::{DelimToken, Token, TokenKind};
use rustc_ast::tokenstream::{DelimSpan, LazyTokenStreamInner, Spacing, TokenStream, TokenTree};
use rustc_ast::{self as ast, AttrItem, Attribute, MetaItem};
use rustc_attr as attr;
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::map_in_place::MapInPlace;
use rustc_data_structures::sync::Lrc;
use rustc_errors::{error_code, struct_span_err, Applicability, Handler};
use rustc_feature::{Feature, Features, State as FeatureState};
use rustc_feature::{
@ -289,7 +292,37 @@ impl<'a> StripUnconfigured<'a> {
expanded_attrs
.into_iter()
.flat_map(|(item, span)| {
let attr = attr::mk_attr_from_item(attr.style, item, span);
let orig_tokens =
attr.tokens.as_ref().unwrap_or_else(|| panic!("Missing tokens for {:?}", attr));
// We are taking an attribute of the form `#[cfg_attr(pred, attr)]`
// and producing an attribute of the form `#[attr]`. We
// have captured tokens for `attr` itself, but we need to
// synthesize tokens for the wrapper `#` and `[]`, which
// we do below.
// Use the `#` in `#[cfg_attr(pred, attr)]` as the `#` token
// for `attr` when we expand it to `#[attr]`
let pound_token = orig_tokens.into_token_stream().trees().next().unwrap();
if !matches!(pound_token, TokenTree::Token(Token { kind: TokenKind::Pound, .. })) {
panic!("Bad tokens for attribute {:?}", attr);
}
// We don't really have a good span to use for the syntheized `[]`
// in `#[attr]`, so just use the span of the `#` token.
let bracket_group = TokenTree::Delimited(
DelimSpan::from_single(pound_token.span()),
DelimToken::Bracket,
item.tokens
.clone()
.unwrap_or_else(|| panic!("Missing tokens for {:?}", item))
.into_token_stream(),
);
let mut attr = attr::mk_attr_from_item(attr.style, item, span);
attr.tokens = Some(Lrc::new(LazyTokenStreamInner::Ready(TokenStream::new(vec![
(pound_token, Spacing::Alone),
(bracket_group, Spacing::Alone),
]))));
self.process_cfg_attr(attr)
})
.collect()

1
compiler/rustc_expand/src/expand.rs
View File

@ -1785,6 +1785,7 @@ impl<'a, 'b> MutVisitor for InvocationCollector<'a, 'b> {
span: at.span,
id: at.id,
style: at.style,
tokens: None,
};
} else {
noop_visit_attribute(at, self)

3
compiler/rustc_middle/src/ich/impls_syntax.rs
View File

@ -40,11 +40,12 @@ impl<'ctx> rustc_ast::HashStableContext for StableHashingContext<'ctx> {
debug_assert!(!attr.ident().map_or(false, |ident| self.is_ignored_attr(ident.name)));
debug_assert!(!attr.is_doc_comment());
let ast::Attribute { kind, id: _, style, span } = attr;
let ast::Attribute { kind, id: _, style, span, tokens } = attr;
if let ast::AttrKind::Normal(item) = kind {
item.hash_stable(self, hasher);
style.hash_stable(self, hasher);
span.hash_stable(self, hasher);
tokens.as_ref().expect_none("Tokens should have been removed during lowering!");
} else {
unreachable!();
}

55
compiler/rustc_parse/src/lib.rs
View File

@ -252,9 +252,7 @@ pub fn nt_to_tokenstream(nt: &Nonterminal, sess: &ParseSess, span: Span) -> Toke
let convert_tokens = |tokens: Option<LazyTokenStream>| tokens.map(|t| t.into_token_stream());
let tokens = match *nt {
Nonterminal::NtItem(ref item) => {
prepend_attrs(sess, &item.attrs, item.tokens.as_ref(), span)
}
Nonterminal::NtItem(ref item) => prepend_attrs(&item.attrs, item.tokens.as_ref()),
Nonterminal::NtBlock(ref block) => convert_tokens(block.tokens.clone()),
Nonterminal::NtStmt(ref stmt) => {
// FIXME: We currently only collect tokens for `:stmt`
@ -279,7 +277,7 @@ pub fn nt_to_tokenstream(nt: &Nonterminal, sess: &ParseSess, span: Span) -> Toke
if expr.tokens.is_none() {
debug!("missing tokens for expr {:?}", expr);
}
prepend_attrs(sess, &expr.attrs, expr.tokens.as_ref(), span)
prepend_attrs(&expr.attrs, expr.tokens.as_ref())
}
};
@ -603,10 +601,8 @@ fn token_probably_equal_for_proc_macro(first: &Token, other: &Token) -> bool {
}
fn prepend_attrs(
sess: &ParseSess,
attrs: &[ast::Attribute],
tokens: Option<&tokenstream::LazyTokenStream>,
span: rustc_span::Span,
) -> Option<tokenstream::TokenStream> {
let tokens = tokens?.clone().into_token_stream();
if attrs.is_empty() {
@ -619,47 +615,12 @@ fn prepend_attrs(
ast::AttrStyle::Outer,
"inner attributes should prevent cached tokens from existing"
);
let source = pprust::attribute_to_string(attr);
let macro_filename = FileName::macro_expansion_source_code(&source);
let item = match attr.kind {
ast::AttrKind::Normal(ref item) => item,
ast::AttrKind::DocComment(..) => {
let stream = parse_stream_from_source_str(macro_filename, source, sess, Some(span));
builder.push(stream);
continue;
}
};
// synthesize # [ $path $tokens ] manually here
let mut brackets = tokenstream::TokenStreamBuilder::new();
// For simple paths, push the identifier directly
if item.path.segments.len() == 1 && item.path.segments[0].args.is_none() {
let ident = item.path.segments[0].ident;
let token = token::Ident(ident.name, ident.as_str().starts_with("r#"));
brackets.push(tokenstream::TokenTree::token(token, ident.span));
// ... and for more complicated paths, fall back to a reparse hack that
// should eventually be removed.
} else {
let stream = parse_stream_from_source_str(macro_filename, source, sess, Some(span));
brackets.push(stream);
}
brackets.push(item.args.outer_tokens());
// The span we list here for `#` and for `[ ... ]` are both wrong in
// that it encompasses more than each token, but it hopefully is "good
// enough" for now at least.
builder.push(tokenstream::TokenTree::token(token::Pound, attr.span));
let delim_span = tokenstream::DelimSpan::from_single(attr.span);
builder.push(tokenstream::TokenTree::Delimited(
delim_span,
token::DelimToken::Bracket,
brackets.build(),
));
builder.push(
attr.tokens
.clone()
.unwrap_or_else(|| panic!("Attribute {:?} is missing tokens!", attr))
.into_token_stream(),
);
}
builder.push(tokens.clone());
Some(builder.build())

129
compiler/rustc_parse/src/parser/attr.rs
View File

@ -29,42 +29,51 @@ impl<'a> Parser<'a> {
let mut attrs: Vec<ast::Attribute> = Vec::new();
let mut just_parsed_doc_comment = false;
loop {
debug!("parse_outer_attributes: self.token={:?}", self.token);
if self.check(&token::Pound) {
let inner_error_reason = if just_parsed_doc_comment {
"an inner attribute is not permitted following an outer doc comment"
} else if !attrs.is_empty() {
"an inner attribute is not permitted following an outer attribute"
let (attr, tokens) = self.collect_tokens(|this| {
debug!("parse_outer_attributes: self.token={:?}", this.token);
if this.check(&token::Pound) {
let inner_error_reason = if just_parsed_doc_comment {
"an inner attribute is not permitted following an outer doc comment"
} else if !attrs.is_empty() {
"an inner attribute is not permitted following an outer attribute"
} else {
DEFAULT_UNEXPECTED_INNER_ATTR_ERR_MSG
};
let inner_parse_policy = InnerAttrPolicy::Forbidden {
reason: inner_error_reason,
saw_doc_comment: just_parsed_doc_comment,
prev_attr_sp: attrs.last().map(|a| a.span),
};
let attr = this.parse_attribute_with_inner_parse_policy(inner_parse_policy)?;
just_parsed_doc_comment = false;
Ok(Some(attr))
} else if let token::DocComment(comment_kind, attr_style, data) = this.token.kind {
let attr =
attr::mk_doc_comment(comment_kind, attr_style, data, this.token.span);
if attr.style != ast::AttrStyle::Outer {
this.sess
.span_diagnostic
.struct_span_err_with_code(
this.token.span,
"expected outer doc comment",
error_code!(E0753),
)
.note(
"inner doc comments like this (starting with \
`//!` or `/*!`) can only appear before items",
)
.emit();
}
this.bump();
just_parsed_doc_comment = true;
Ok(Some(attr))
} else {
DEFAULT_UNEXPECTED_INNER_ATTR_ERR_MSG
};
let inner_parse_policy = InnerAttrPolicy::Forbidden {
reason: inner_error_reason,
saw_doc_comment: just_parsed_doc_comment,
prev_attr_sp: attrs.last().map(|a| a.span),
};
let attr = self.parse_attribute_with_inner_parse_policy(inner_parse_policy)?;
attrs.push(attr);
just_parsed_doc_comment = false;
} else if let token::DocComment(comment_kind, attr_style, data) = self.token.kind {
let attr = attr::mk_doc_comment(comment_kind, attr_style, data, self.token.span);
if attr.style != ast::AttrStyle::Outer {
self.sess
.span_diagnostic
.struct_span_err_with_code(
self.token.span,
"expected outer doc comment",
error_code!(E0753),
)
.note(
"inner doc comments like this (starting with \
`//!` or `/*!`) can only appear before items",
)
.emit();
Ok(None)
}
})?;
if let Some(mut attr) = attr {
attr.tokens = Some(tokens);
attrs.push(attr);
self.bump();
just_parsed_doc_comment = true;
} else {
break;
}
@ -99,7 +108,7 @@ impl<'a> Parser<'a> {
if self.eat(&token::Not) { ast::AttrStyle::Inner } else { ast::AttrStyle::Outer };
self.expect(&token::OpenDelim(token::Bracket))?;
let item = self.parse_attr_item()?;
let item = self.parse_attr_item(false)?;
self.expect(&token::CloseDelim(token::Bracket))?;
let attr_sp = lo.to(self.prev_token.span);
@ -148,7 +157,7 @@ impl<'a> Parser<'a> {
/// PATH
/// PATH `=` UNSUFFIXED_LIT
/// The delimiters or `=` are still put into the resulting token stream.
pub fn parse_attr_item(&mut self) -> PResult<'a, ast::AttrItem> {
pub fn parse_attr_item(&mut self, capture_tokens: bool) -> PResult<'a, ast::AttrItem> {
let item = match self.token.kind {
token::Interpolated(ref nt) => match **nt {
Nonterminal::NtMeta(ref item) => Some(item.clone().into_inner()),
@ -160,9 +169,18 @@ impl<'a> Parser<'a> {
self.bump();
item
} else {
let path = self.parse_path(PathStyle::Mod)?;
let args = self.parse_attr_args()?;
ast::AttrItem { path, args, tokens: None }
let do_parse = |this: &mut Self| {
let path = this.parse_path(PathStyle::Mod)?;
let args = this.parse_attr_args()?;
Ok(ast::AttrItem { path, args, tokens: None })
};
if capture_tokens {
let (mut item, tokens) = self.collect_tokens(do_parse)?;
item.tokens = Some(tokens);
item
} else {
do_parse(self)?
}
})
}
@ -174,20 +192,29 @@ impl<'a> Parser<'a> {
crate fn parse_inner_attributes(&mut self) -> PResult<'a, Vec<ast::Attribute>> {
let mut attrs: Vec<ast::Attribute> = vec![];
loop {
// Only try to parse if it is an inner attribute (has `!`).
if self.check(&token::Pound) && self.look_ahead(1, |t| t == &token::Not) {
let attr = self.parse_attribute(true)?;
assert_eq!(attr.style, ast::AttrStyle::Inner);
attrs.push(attr);
} else if let token::DocComment(comment_kind, attr_style, data) = self.token.kind {
// We need to get the position of this token before we bump.
let attr = attr::mk_doc_comment(comment_kind, attr_style, data, self.token.span);
if attr.style == ast::AttrStyle::Inner {
attrs.push(attr);
self.bump();
let (attr, tokens) = self.collect_tokens(|this| {
// Only try to parse if it is an inner attribute (has `!`).
if this.check(&token::Pound) && this.look_ahead(1, |t| t == &token::Not) {
let attr = this.parse_attribute(true)?;
assert_eq!(attr.style, ast::AttrStyle::Inner);
Ok(Some(attr))
} else if let token::DocComment(comment_kind, attr_style, data) = this.token.kind {
// We need to get the position of this token before we bump.
let attr =
attr::mk_doc_comment(comment_kind, attr_style, data, this.token.span);
if attr.style == ast::AttrStyle::Inner {
this.bump();
Ok(Some(attr))
} else {
Ok(None)
}
} else {
break;
Ok(None)
}
})?;
if let Some(mut attr) = attr {
attr.tokens = Some(tokens);
attrs.push(attr);
} else {
break;
}
@ -220,7 +247,7 @@ impl<'a> Parser<'a> {
let mut expanded_attrs = Vec::with_capacity(1);
while self.token.kind != token::Eof {
let lo = self.token.span;
let item = self.parse_attr_item()?;
let item = self.parse_attr_item(true)?;
expanded_attrs.push((item, lo.to(self.prev_token.span)));
if !self.eat(&token::Comma) {
break;

2
compiler/rustc_parse/src/parser/nonterminal.rs
View File

@ -188,7 +188,7 @@ impl<'a> Parser<'a> {
token::NtPath(path)
}
NonterminalKind::Meta => {
let (mut attr, tokens) = self.collect_tokens(|this| this.parse_attr_item())?;
let (mut attr, tokens) = self.collect_tokens(|this| this.parse_attr_item(false))?;
// We may have eaten a nonterminal, which could already have tokens
if attr.tokens.is_none() {
attr.tokens = Some(tokens);

2
src/test/ui/ast-json/ast-json-noexpand-output.stdout
View File

@ -1 +1 @@
{"module":{"inner":{"lo":0,"hi":0},"unsafety":"No","items":[{"attrs":[],"id":0,"span":{"lo":0,"hi":0},"vis":{"kind":"Inherited","span":{"lo":0,"hi":0},"tokens":null},"ident":{"name":"core","span":{"lo":0,"hi":0}},"kind":{"variant":"ExternCrate","fields":[null]},"tokens":null}],"inline":true},"attrs":[{"kind":{"variant":"Normal","fields":[{"path":{"span":{"lo":0,"hi":0},"segments":[{"ident":{"name":"crate_type","span":{"lo":0,"hi":0}},"id":0,"args":null}],"tokens":null},"args":{"variant":"Eq","fields":[{"lo":0,"hi":0},{"0":[[{"variant":"Token","fields":[{"kind":{"variant":"Literal","fields":[{"kind":"Str","symbol":"lib","suffix":null}]},"span":{"lo":0,"hi":0}}]},"Alone"]]}]},"tokens":null}]},"id":null,"style":"Inner","span":{"lo":0,"hi":0}}],"span":{"lo":0,"hi":0},"proc_macros":[]}
{"module":{"inner":{"lo":0,"hi":0},"unsafety":"No","items":[{"attrs":[],"id":0,"span":{"lo":0,"hi":0},"vis":{"kind":"Inherited","span":{"lo":0,"hi":0},"tokens":null},"ident":{"name":"core","span":{"lo":0,"hi":0}},"kind":{"variant":"ExternCrate","fields":[null]},"tokens":null}],"inline":true},"attrs":[{"kind":{"variant":"Normal","fields":[{"path":{"span":{"lo":0,"hi":0},"segments":[{"ident":{"name":"crate_type","span":{"lo":0,"hi":0}},"id":0,"args":null}],"tokens":null},"args":{"variant":"Eq","fields":[{"lo":0,"hi":0},{"0":[[{"variant":"Token","fields":[{"kind":{"variant":"Literal","fields":[{"kind":"Str","symbol":"lib","suffix":null}]},"span":{"lo":0,"hi":0}}]},"Alone"]]}]},"tokens":null}]},"id":null,"style":"Inner","span":{"lo":0,"hi":0},"tokens":{"0":[[{"variant":"Token","fields":[{"kind":"Pound","span":{"lo":0,"hi":0}}]},"Joint"],[{"variant":"Token","fields":[{"kind":"Not","span":{"lo":0,"hi":0}}]},"Alone"],[{"variant":"Delimited","fields":[{"open":{"lo":0,"hi":0},"close":{"lo":0,"hi":0}},"Bracket",{"0":[[{"variant":"Token","fields":[{"kind":{"variant":"Ident","fields":["crate_type",false]},"span":{"lo":0,"hi":0}}]},"Alone"],[{"variant":"Token","fields":[{"kind":"Eq","span":{"lo":0,"hi":0}}]},"Alone"],[{"variant":"Token","fields":[{"kind":{"variant":"Literal","fields":[{"kind":"Str","symbol":"lib","suffix":null}]},"span":{"lo":0,"hi":0}}]},"Alone"]]}]},"Alone"]]}}],"span":{"lo":0,"hi":0},"proc_macros":[]}

2
src/test/ui/ast-json/ast-json-output.stdout
View File

@ -1 +1 @@
{"module":{"inner":{"lo":0,"hi":0},"unsafety":"No","items":[{"attrs":[{"kind":{"variant":"Normal","fields":[{"path":{"span":{"lo":0,"hi":0},"segments":[{"ident":{"name":"prelude_import","span":{"lo":0,"hi":0}},"id":0,"args":null}],"tokens":null},"args":"Empty","tokens":null}]},"id":null,"style":"Outer","span":{"lo":0,"hi":0}}],"id":0,"span":{"lo":0,"hi":0},"vis":{"kind":"Inherited","span":{"lo":0,"hi":0},"tokens":null},"ident":{"name":"","span":{"lo":0,"hi":0}},"kind":{"variant":"Use","fields":[{"prefix":{"span":{"lo":0,"hi":0},"segments":[{"ident":{"name":"{{root}}","span":{"lo":0,"hi":0}},"id":0,"args":null},{"ident":{"name":"std","span":{"lo":0,"hi":0}},"id":0,"args":null},{"ident":{"name":"prelude","span":{"lo":0,"hi":0}},"id":0,"args":null},{"ident":{"name":"v1","span":{"lo":0,"hi":0}},"id":0,"args":null}],"tokens":null},"kind":"Glob","span":{"lo":0,"hi":0}}]},"tokens":null},{"attrs":[{"kind":{"variant":"Normal","fields":[{"path":{"span":{"lo":0,"hi":0},"segments":[{"ident":{"name":"macro_use","span":{"lo":0,"hi":0}},"id":0,"args":null}],"tokens":null},"args":"Empty","tokens":null}]},"id":null,"style":"Outer","span":{"lo":0,"hi":0}}],"id":0,"span":{"lo":0,"hi":0},"vis":{"kind":"Inherited","span":{"lo":0,"hi":0},"tokens":null},"ident":{"name":"std","span":{"lo":0,"hi":0}},"kind":{"variant":"ExternCrate","fields":[null]},"tokens":null},{"attrs":[],"id":0,"span":{"lo":0,"hi":0},"vis":{"kind":"Inherited","span":{"lo":0,"hi":0},"tokens":null},"ident":{"name":"core","span":{"lo":0,"hi":0}},"kind":{"variant":"ExternCrate","fields":[null]},"tokens":null}],"inline":true},"attrs":[{"kind":{"variant":"Normal","fields":[{"path":{"span":{"lo":0,"hi":0},"segments":[{"ident":{"name":"crate_type","span":{"lo":0,"hi":0}},"id":0,"args":null}],"tokens":null},"args":{"variant":"Eq","fields":[{"lo":0,"hi":0},{"0":[[{"variant":"Token","fields":[{"kind":{"variant":"Literal","fields":[{"kind":"Str","symbol":"lib","suffix":null}]},"span":{"lo":0,"hi":0}}]},"Alone"]]}]},"tokens":null}]},"id":null,"style":"Inner","span":{"lo":0,"hi":0}}],"span":{"lo":0,"hi":0},"proc_macros":[]}
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16
src/test/ui/proc-macro/issue-75930-derive-cfg.stdout
View File

@ -26,7 +26,7 @@ PRINT-ATTR INPUT (DEBUG): TokenStream [
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ch: '#',
spacing: Alone,
span: $DIR/issue-75930-derive-cfg.rs:17:24: 17:40 (#0),
span: $DIR/issue-75930-derive-cfg.rs:17:1: 17:2 (#0),
},
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delimiter: Bracket,
@ -46,12 +46,12 @@ PRINT-ATTR INPUT (DEBUG): TokenStream [
span: $DIR/issue-75930-derive-cfg.rs:17:29: 17:40 (#0),
},
],
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@ -71,12 +71,12 @@ PRINT-ATTR INPUT (DEBUG): TokenStream [
span: $DIR/issue-75930-derive-cfg.rs:19:9: 19:16 (#0),
},
],
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@ -96,12 +96,12 @@ PRINT-ATTR INPUT (DEBUG): TokenStream [
span: $DIR/issue-75930-derive-cfg.rs:20:15: 20:18 (#0),
},
],
span: $DIR/issue-75930-derive-cfg.rs:20:1: 20:19 (#0),
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@ -121,7 +121,7 @@ PRINT-ATTR INPUT (DEBUG): TokenStream [
span: $DIR/issue-75930-derive-cfg.rs:16:15: 16:18 (#0),
},
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span: $DIR/issue-75930-derive-cfg.rs:16:1: 16:19 (#0),
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