diff options
| -rw-r--r-- | Cargo.lock | 6 | ||||
| -rw-r--r-- | compiler/rustc_ast/src/ast.rs | 2 | ||||
| -rw-r--r-- | compiler/rustc_expand/src/expand.rs | 20 | ||||
| -rw-r--r-- | compiler/rustc_expand/src/module.rs | 58 | ||||
| -rw-r--r-- | compiler/rustc_resolve/src/macros.rs | 27 | ||||
| -rw-r--r-- | compiler/rustc_span/src/symbol.rs | 1 | ||||
| -rw-r--r-- | src/test/ui/conditional-compilation/inner-cfg-non-inline-mod.rs | 7 | ||||
| -rw-r--r-- | src/test/ui/conditional-compilation/module_with_cfg.rs | 3 | ||||
| -rw-r--r-- | src/test/ui/proc-macro/inner-attr-non-inline-mod.rs | 18 | ||||
| -rw-r--r-- | src/test/ui/proc-macro/inner-attr-non-inline-mod.stderr | 40 | ||||
| -rw-r--r-- | src/test/ui/proc-macro/inner-attr-non-inline-mod.stdout | 76 | ||||
| -rw-r--r-- | src/test/ui/proc-macro/module_with_attrs.rs | 4 |
12 files changed, 230 insertions, 32 deletions
diff --git a/Cargo.lock b/Cargo.lock index 5ca91f42bdc..3c278a6a491 100644 --- a/Cargo.lock +++ b/Cargo.lock @@ -4774,7 +4774,7 @@ version = "0.11.0" source = "registry+https://github.com/rust-lang/crates.io-index" checksum = "f301af10236f6df4160f7c3f04eec6dbc70ace82d23326abad5edee88801c6b6" dependencies = [ - "semver-parser 0.10.1", + "semver-parser 0.10.2", "serde", ] @@ -4786,9 +4786,9 @@ checksum = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3" [[package]] name = "semver-parser" -version = "0.10.1" +version = "0.10.2" source = "registry+https://github.com/rust-lang/crates.io-index" -checksum = "42ef146c2ad5e5f4b037cd6ce2ebb775401729b19a82040c1beac9d36c7d1428" +checksum = "00b0bef5b7f9e0df16536d3961cfb6e84331c065b4066afb39768d0e319411f7" dependencies = [ "pest", ] diff --git a/compiler/rustc_ast/src/ast.rs b/compiler/rustc_ast/src/ast.rs index d6297addc0c..a934bdd7980 100644 --- a/compiler/rustc_ast/src/ast.rs +++ b/compiler/rustc_ast/src/ast.rs @@ -2297,7 +2297,7 @@ impl FnRetTy { } } -#[derive(Clone, PartialEq, Encodable, Decodable, Debug)] +#[derive(Clone, Copy, PartialEq, Encodable, Decodable, Debug)] pub enum Inline { Yes, No, diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs index dd2eaa0f3d5..a1e5979f62d 100644 --- a/compiler/rustc_expand/src/expand.rs +++ b/compiler/rustc_expand/src/expand.rs @@ -1282,16 +1282,13 @@ impl<'a, 'b> MutVisitor for InvocationCollector<'a, 'b> { let (file_path, dir_path, dir_ownership) = match mod_kind { ModKind::Loaded(_, inline, _) => { // Inline `mod foo { ... }`, but we still need to push directories. - assert!( - *inline == Inline::Yes, - "`mod` item is loaded from a file for the second time" - ); let (dir_path, dir_ownership) = mod_dir_path( &self.cx.sess, ident, &attrs, &self.cx.current_expansion.module, self.cx.current_expansion.dir_ownership, + *inline, ); item.attrs = attrs; (None, dir_path, dir_ownership) @@ -1322,10 +1319,19 @@ impl<'a, 'b> MutVisitor for InvocationCollector<'a, 'b> { item.attrs = attrs; if item.attrs.len() > old_attrs_len { // If we loaded an out-of-line module and added some inner attributes, - // then we need to re-configure it. - // FIXME: Attributes also need to be recollected - // for resolution and expansion. + // then we need to re-configure it and re-collect attributes for + // resolution and expansion. item = configure!(self, item); + + if let Some(attr) = self.take_first_attr(&mut item) { + return self + .collect_attr( + attr, + Annotatable::Item(item), + AstFragmentKind::Items, + ) + .make_items(); + } } (Some(file_path), dir_path, dir_ownership) } diff --git a/compiler/rustc_expand/src/module.rs b/compiler/rustc_expand/src/module.rs index 2ec656d4895..c5ce0baaa8f 100644 --- a/compiler/rustc_expand/src/module.rs +++ b/compiler/rustc_expand/src/module.rs @@ -1,6 +1,6 @@ use crate::base::ModuleData; use rustc_ast::ptr::P; -use rustc_ast::{token, Attribute, Item}; +use rustc_ast::{token, Attribute, Inline, Item}; use rustc_errors::{struct_span_err, DiagnosticBuilder}; use rustc_parse::new_parser_from_file; use rustc_session::parse::ParseSess; @@ -83,29 +83,49 @@ crate fn mod_dir_path( attrs: &[Attribute], module: &ModuleData, mut dir_ownership: DirOwnership, + inline: Inline, ) -> (PathBuf, DirOwnership) { - if let Some(file_path) = mod_file_path_from_attr(sess, attrs, &module.dir_path) { - // For inline modules file path from `#[path]` is actually the directory path - // for historical reasons, so we don't pop the last segment here. - return (file_path, DirOwnership::Owned { relative: None }); - } + match inline { + Inline::Yes => { + if let Some(file_path) = mod_file_path_from_attr(sess, attrs, &module.dir_path) { + // For inline modules file path from `#[path]` is actually the directory path + // for historical reasons, so we don't pop the last segment here. + return (file_path, DirOwnership::Owned { relative: None }); + } - // We have to push on the current module name in the case of relative - // paths in order to ensure that any additional module paths from inline - // `mod x { ... }` come after the relative extension. - // - // For example, a `mod z { ... }` inside `x/y.rs` should set the current - // directory path to `/x/y/z`, not `/x/z` with a relative offset of `y`. - let mut dir_path = module.dir_path.clone(); - if let DirOwnership::Owned { relative } = &mut dir_ownership { - if let Some(ident) = relative.take() { - // Remove the relative offset. + // We have to push on the current module name in the case of relative + // paths in order to ensure that any additional module paths from inline + // `mod x { ... }` come after the relative extension. + // + // For example, a `mod z { ... }` inside `x/y.rs` should set the current + // directory path to `/x/y/z`, not `/x/z` with a relative offset of `y`. + let mut dir_path = module.dir_path.clone(); + if let DirOwnership::Owned { relative } = &mut dir_ownership { + if let Some(ident) = relative.take() { + // Remove the relative offset. + dir_path.push(&*ident.as_str()); + } + } dir_path.push(&*ident.as_str()); + + (dir_path, dir_ownership) } - } - dir_path.push(&*ident.as_str()); + Inline::No => { + // FIXME: This is a subset of `parse_external_mod` without actual parsing, + // check whether the logic for unloaded, loaded and inline modules can be unified. + let file_path = mod_file_path(sess, ident, &attrs, &module.dir_path, dir_ownership) + .map(|mp| { + dir_ownership = mp.dir_ownership; + mp.file_path + }) + .unwrap_or_default(); + + // Extract the directory path for submodules of the module. + let dir_path = file_path.parent().unwrap_or(&file_path).to_owned(); - (dir_path, dir_ownership) + (dir_path, dir_ownership) + } + } } fn mod_file_path<'a>( diff --git a/compiler/rustc_resolve/src/macros.rs b/compiler/rustc_resolve/src/macros.rs index 2d149c476a6..2e47d4cecee 100644 --- a/compiler/rustc_resolve/src/macros.rs +++ b/compiler/rustc_resolve/src/macros.rs @@ -6,7 +6,7 @@ use crate::Namespace::*; use crate::{AmbiguityError, AmbiguityErrorMisc, AmbiguityKind, BuiltinMacroState, Determinacy}; use crate::{CrateLint, ParentScope, ResolutionError, Resolver, Scope, ScopeSet, Weak}; use crate::{ModuleKind, ModuleOrUniformRoot, NameBinding, PathResult, Segment, ToNameBinding}; -use rustc_ast::{self as ast, NodeId}; +use rustc_ast::{self as ast, Inline, ItemKind, ModKind, NodeId}; use rustc_ast_lowering::ResolverAstLowering; use rustc_ast_pretty::pprust; use rustc_attr::StabilityLevel; @@ -14,6 +14,7 @@ use rustc_data_structures::fx::FxHashSet; use rustc_data_structures::ptr_key::PtrKey; use rustc_data_structures::sync::Lrc; use rustc_errors::struct_span_err; +use rustc_expand::base::Annotatable; use rustc_expand::base::{Indeterminate, ResolverExpand, SyntaxExtension, SyntaxExtensionKind}; use rustc_expand::compile_declarative_macro; use rustc_expand::expand::{AstFragment, Invocation, InvocationKind}; @@ -153,6 +154,26 @@ crate fn registered_attrs_and_tools( (registered_attrs, registered_tools) } +// Some feature gates for inner attributes are reported as lints for backward compatibility. +fn soft_custom_inner_attributes_gate(path: &ast::Path, invoc: &Invocation) -> bool { + match &path.segments[..] { + // `#![test]` + [seg] if seg.ident.name == sym::test => return true, + // `#![rustfmt::skip]` on out-of-line modules + [seg1, seg2] if seg1.ident.name == sym::rustfmt && seg2.ident.name == sym::skip => { + if let InvocationKind::Attr { item, .. } = &invoc.kind { + if let Annotatable::Item(item) = item { + if let ItemKind::Mod(_, ModKind::Loaded(_, Inline::No, _)) = item.kind { + return true; + } + } + } + } + _ => {} + } + false +} + impl<'a> ResolverExpand for Resolver<'a> { fn next_node_id(&mut self) -> NodeId { self.next_node_id() @@ -267,6 +288,7 @@ impl<'a> ResolverExpand for Resolver<'a> { parent_scope, node_id, force, + soft_custom_inner_attributes_gate(path, invoc), )?; let span = invoc.span(); @@ -440,6 +462,7 @@ impl<'a> Resolver<'a> { parent_scope: &ParentScope<'a>, node_id: NodeId, force: bool, + soft_custom_inner_attributes_gate: bool, ) -> Result<(Lrc<SyntaxExtension>, Res), Indeterminate> { let (ext, res) = match self.resolve_macro_path(path, Some(kind), parent_scope, true, force) { @@ -507,7 +530,7 @@ impl<'a> Resolver<'a> { Res::NonMacroAttr(..) => "custom inner attributes are unstable", _ => unreachable!(), }; - if path == &sym::test { + if soft_custom_inner_attributes_gate { self.session.parse_sess.buffer_lint(SOFT_UNSTABLE, path.span, node_id, msg); } else { feature_err(&self.session.parse_sess, sym::custom_inner_attributes, path.span, msg) diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs index 79ca3c194cc..4fcb8b6c1b7 100644 --- a/compiler/rustc_span/src/symbol.rs +++ b/compiler/rustc_span/src/symbol.rs @@ -1111,6 +1111,7 @@ symbols! { size_of, size_of_val, sized, + skip, slice, slice_alloc, slice_patterns, diff --git a/src/test/ui/conditional-compilation/inner-cfg-non-inline-mod.rs b/src/test/ui/conditional-compilation/inner-cfg-non-inline-mod.rs new file mode 100644 index 00000000000..af5a6462e8a --- /dev/null +++ b/src/test/ui/conditional-compilation/inner-cfg-non-inline-mod.rs @@ -0,0 +1,7 @@ +// check-pass + +mod module_with_cfg; + +mod module_with_cfg {} // Ok, the module above is configured away by an inner attribute. + +fn main() {} diff --git a/src/test/ui/conditional-compilation/module_with_cfg.rs b/src/test/ui/conditional-compilation/module_with_cfg.rs new file mode 100644 index 00000000000..56c4baadf22 --- /dev/null +++ b/src/test/ui/conditional-compilation/module_with_cfg.rs @@ -0,0 +1,3 @@ +// ignore-test + +#![cfg_attr(all(), cfg(FALSE))] diff --git a/src/test/ui/proc-macro/inner-attr-non-inline-mod.rs b/src/test/ui/proc-macro/inner-attr-non-inline-mod.rs new file mode 100644 index 00000000000..30c2666df47 --- /dev/null +++ b/src/test/ui/proc-macro/inner-attr-non-inline-mod.rs @@ -0,0 +1,18 @@ +// compile-flags: -Z span-debug +// error-pattern:custom inner attributes are unstable +// error-pattern:inner macro attributes are unstable +// error-pattern:this was previously accepted +// aux-build:test-macros.rs + +#![no_std] // Don't load unnecessary hygiene information from std +extern crate std; + +#[macro_use] +extern crate test_macros; + +#[deny(unused_attributes)] +mod module_with_attrs; +//~^ ERROR non-inline modules in proc macro input are unstable +//~| ERROR custom inner attributes are unstable + +fn main() {} diff --git a/src/test/ui/proc-macro/inner-attr-non-inline-mod.stderr b/src/test/ui/proc-macro/inner-attr-non-inline-mod.stderr new file mode 100644 index 00000000000..4286896dfc3 --- /dev/null +++ b/src/test/ui/proc-macro/inner-attr-non-inline-mod.stderr @@ -0,0 +1,40 @@ +error[E0658]: inner macro attributes are unstable + --> $DIR/module_with_attrs.rs:4:4 + | +LL | #![print_attr] + | ^^^^^^^^^^ + | + = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information + = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable + +error[E0658]: non-inline modules in proc macro input are unstable + --> $DIR/inner-attr-non-inline-mod.rs:14:1 + | +LL | mod module_with_attrs; + | ^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #54727 <https://github.com/rust-lang/rust/issues/54727> for more information + = help: add `#![feature(proc_macro_hygiene)]` to the crate attributes to enable + +error[E0658]: custom inner attributes are unstable + --> $DIR/inner-attr-non-inline-mod.rs:14:1 + | +LL | mod module_with_attrs; + | ^^^^^^^^^^^^^^^^^^^^^^ + | + = note: see issue #54726 <https://github.com/rust-lang/rust/issues/54726> for more information + = help: add `#![feature(custom_inner_attributes)]` to the crate attributes to enable + +error: custom inner attributes are unstable + --> $DIR/module_with_attrs.rs:3:4 + | +LL | #![rustfmt::skip] + | ^^^^^^^^^^^^^ + | + = note: `#[deny(soft_unstable)]` on by default + = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release! + = note: for more information, see issue #64266 <https://github.com/rust-lang/rust/issues/64266> + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0658`. diff --git a/src/test/ui/proc-macro/inner-attr-non-inline-mod.stdout b/src/test/ui/proc-macro/inner-attr-non-inline-mod.stdout new file mode 100644 index 00000000000..dbef342ef24 --- /dev/null +++ b/src/test/ui/proc-macro/inner-attr-non-inline-mod.stdout @@ -0,0 +1,76 @@ +PRINT-ATTR INPUT (DISPLAY): #[deny(unused_attributes)] mod module_with_attrs { # ! [rustfmt :: skip] } +PRINT-ATTR INPUT (DEBUG): TokenStream [ + Punct { + ch: '#', + spacing: Alone, + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Group { + delimiter: Bracket, + stream: TokenStream [ + Ident { + ident: "deny", + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Group { + delimiter: Parenthesis, + stream: TokenStream [ + Ident { + ident: "unused_attributes", + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + ], + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + ], + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Ident { + ident: "mod", + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Ident { + ident: "module_with_attrs", + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Group { + delimiter: Brace, + stream: TokenStream [ + Punct { + ch: '#', + spacing: Joint, + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Punct { + ch: '!', + spacing: Alone, + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Group { + delimiter: Bracket, + stream: TokenStream [ + Ident { + ident: "rustfmt", + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Punct { + ch: ':', + spacing: Joint, + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Punct { + ch: ':', + spacing: Alone, + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + Ident { + ident: "skip", + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + ], + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, + ], + span: $DIR/inner-attr-non-inline-mod.rs:14:1: 14:23 (#0), + }, +] diff --git a/src/test/ui/proc-macro/module_with_attrs.rs b/src/test/ui/proc-macro/module_with_attrs.rs new file mode 100644 index 00000000000..63e66a62ac3 --- /dev/null +++ b/src/test/ui/proc-macro/module_with_attrs.rs @@ -0,0 +1,4 @@ +// ignore-test + +#![rustfmt::skip] +#![print_attr] |