bjoernager/rust
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Syntactically permit unsafety on mods

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This commit is contained in:
David Tolnay 2020-08-23 03:42:19 -07:00
parent 25b2f48612
commit fd4dd00dde
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GPG key ID: F9BA143B95FF6D82
17 changed files with 284 additions and 37 deletions
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27
compiler/rustc_expand/src/expand.rs
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@ -13,7 +13,7 @@ use rustc_ast::token;
use rustc_ast::tokenstream::TokenStream;
use rustc_ast::visit::{self, AssocCtxt, Visitor};
use rustc_ast::{self as ast, AttrItem, Block, LitKind, NodeId, PatKind, Path};
use rustc_ast::{ItemKind, MacArgs, MacCallStmt, MacStmtStyle, StmtKind};
use rustc_ast::{ItemKind, MacArgs, MacCallStmt, MacStmtStyle, StmtKind, Unsafe};
use rustc_ast_pretty::pprust;
use rustc_attr::{self as attr, is_builtin_attr, HasAttrs};
use rustc_data_structures::map_in_place::MapInPlace;
@ -370,11 +370,21 @@ impl<'a, 'b> MacroExpander<'a, 'b> {
None => {
// Resolution failed so we return an empty expansion
krate.attrs = vec![];
krate.module = ast::Mod { inner: orig_mod_span, items: vec![], inline: true };
krate.module = ast::Mod {
inner: orig_mod_span,
unsafety: Unsafe::No,
items: vec![],
inline: true,
};
}
Some(ast::Item { span, kind, .. }) => {
krate.attrs = vec![];
krate.module = ast::Mod { inner: orig_mod_span, items: vec![], inline: true };
krate.module = ast::Mod {
inner: orig_mod_span,
unsafety: Unsafe::No,
items: vec![],
inline: true,
};
self.cx.span_err(
span,
&format!(
@ -1441,8 +1451,15 @@ impl<'a, 'b> MutVisitor for InvocationCollector<'a, 'b> {
push_directory(&self.cx.sess, ident, &item.attrs, dir)
} else {
// We have an outline `mod foo;` so we need to parse the file.
let (new_mod, dir) =
parse_external_mod(&self.cx.sess, ident, span, dir, &mut attrs, pushed);
let (new_mod, dir) = parse_external_mod(
&self.cx.sess,
ident,
span,
old_mod.unsafety,
dir,
&mut attrs,
pushed,
);
let krate = ast::Crate {
span: new_mod.inner,