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-rw-r--r--compiler/rustc_expand/src/base.rs58
-rw-r--r--compiler/rustc_expand/src/build.rs43
-rw-r--r--compiler/rustc_expand/src/config.rs74
-rw-r--r--compiler/rustc_expand/src/errors.rs48
-rw-r--r--compiler/rustc_expand/src/expand.rs40
-rw-r--r--compiler/rustc_expand/src/lib.rs6
-rw-r--r--compiler/rustc_expand/src/mbe/macro_parser.rs2
-rw-r--r--compiler/rustc_expand/src/mbe/macro_rules.rs11
-rw-r--r--compiler/rustc_expand/src/mbe/metavar_expr.rs2
-rw-r--r--compiler/rustc_expand/src/mbe/transcribe.rs34
-rw-r--r--compiler/rustc_expand/src/module.rs8
-rw-r--r--compiler/rustc_expand/src/placeholders.rs8
-rw-r--r--compiler/rustc_expand/src/proc_macro_server.rs71
13 files changed, 230 insertions, 175 deletions
diff --git a/compiler/rustc_expand/src/base.rs b/compiler/rustc_expand/src/base.rs
index 6e093811f..e1da3ecde 100644
--- a/compiler/rustc_expand/src/base.rs
+++ b/compiler/rustc_expand/src/base.rs
@@ -6,7 +6,7 @@ use rustc_ast::ptr::P;
use rustc_ast::token::{self, Nonterminal};
use rustc_ast::tokenstream::TokenStream;
use rustc_ast::visit::{AssocCtxt, Visitor};
-use rustc_ast::{self as ast, Attribute, HasAttrs, Item, NodeId, PatKind};
+use rustc_ast::{self as ast, AttrVec, Attribute, HasAttrs, Item, NodeId, PatKind};
use rustc_attr::{self as attr, Deprecation, Stability};
use rustc_data_structures::fx::{FxHashSet, FxIndexMap};
use rustc_data_structures::sync::{self, Lrc};
@@ -71,7 +71,7 @@ impl Annotatable {
}
}
- pub fn visit_attrs(&mut self, f: impl FnOnce(&mut Vec<Attribute>)) {
+ pub fn visit_attrs(&mut self, f: impl FnOnce(&mut AttrVec)) {
match self {
Annotatable::Item(item) => item.visit_attrs(f),
Annotatable::TraitItem(trait_item) => trait_item.visit_attrs(f),
@@ -693,10 +693,6 @@ pub struct SyntaxExtension {
pub span: Span,
/// List of unstable features that are treated as stable inside this macro.
pub allow_internal_unstable: Option<Lrc<[Symbol]>>,
- /// Suppresses the `unsafe_code` lint for code produced by this macro.
- pub allow_internal_unsafe: bool,
- /// Enables the macro helper hack (`ident!(...)` -> `$crate::ident!(...)`) for this macro.
- pub local_inner_macros: bool,
/// The macro's stability info.
pub stability: Option<Stability>,
/// The macro's deprecation info.
@@ -708,6 +704,13 @@ pub struct SyntaxExtension {
/// Built-in macros have a couple of special properties like availability
/// in `#[no_implicit_prelude]` modules, so we have to keep this flag.
pub builtin_name: Option<Symbol>,
+ /// Suppresses the `unsafe_code` lint for code produced by this macro.
+ pub allow_internal_unsafe: bool,
+ /// Enables the macro helper hack (`ident!(...)` -> `$crate::ident!(...)`) for this macro.
+ pub local_inner_macros: bool,
+ /// Should debuginfo for the macro be collapsed to the outermost expansion site (in other
+ /// words, was the macro definition annotated with `#[collapse_debuginfo]`)?
+ pub collapse_debuginfo: bool,
}
impl SyntaxExtension {
@@ -729,14 +732,15 @@ impl SyntaxExtension {
SyntaxExtension {
span: DUMMY_SP,
allow_internal_unstable: None,
- allow_internal_unsafe: false,
- local_inner_macros: false,
stability: None,
deprecation: None,
helper_attrs: Vec::new(),
edition,
builtin_name: None,
kind,
+ allow_internal_unsafe: false,
+ local_inner_macros: false,
+ collapse_debuginfo: false,
}
}
@@ -754,12 +758,13 @@ impl SyntaxExtension {
let allow_internal_unstable =
attr::allow_internal_unstable(sess, &attrs).collect::<Vec<Symbol>>();
- let mut local_inner_macros = false;
- if let Some(macro_export) = sess.find_by_name(attrs, sym::macro_export) {
- if let Some(l) = macro_export.meta_item_list() {
- local_inner_macros = attr::list_contains_name(&l, sym::local_inner_macros);
- }
- }
+ let allow_internal_unsafe = sess.contains_name(attrs, sym::allow_internal_unsafe);
+ let local_inner_macros = sess
+ .find_by_name(attrs, sym::macro_export)
+ .and_then(|macro_export| macro_export.meta_item_list())
+ .map_or(false, |l| attr::list_contains_name(&l, sym::local_inner_macros));
+ let collapse_debuginfo = sess.contains_name(attrs, sym::collapse_debuginfo);
+ tracing::debug!(?local_inner_macros, ?collapse_debuginfo, ?allow_internal_unsafe);
let (builtin_name, helper_attrs) = sess
.find_by_name(attrs, sym::rustc_builtin_macro)
@@ -772,7 +777,7 @@ impl SyntaxExtension {
)
})
.unwrap_or_else(|| (None, helper_attrs));
- let (stability, const_stability) = attr::find_stability(&sess, attrs, span);
+ let (stability, const_stability, body_stability) = attr::find_stability(&sess, attrs, span);
if let Some((_, sp)) = const_stability {
sess.parse_sess
.span_diagnostic
@@ -784,19 +789,31 @@ impl SyntaxExtension {
)
.emit();
}
+ if let Some((_, sp)) = body_stability {
+ sess.parse_sess
+ .span_diagnostic
+ .struct_span_err(sp, "macros cannot have body stability attributes")
+ .span_label(sp, "invalid body stability attribute")
+ .span_label(
+ sess.source_map().guess_head_span(span),
+ "body stability attribute affects this macro",
+ )
+ .emit();
+ }
SyntaxExtension {
kind,
span,
allow_internal_unstable: (!allow_internal_unstable.is_empty())
.then(|| allow_internal_unstable.into()),
- allow_internal_unsafe: sess.contains_name(attrs, sym::allow_internal_unsafe),
- local_inner_macros,
stability: stability.map(|(s, _)| s),
deprecation: attr::find_deprecation(&sess, attrs).map(|(d, _)| d),
helper_attrs,
edition,
builtin_name,
+ allow_internal_unsafe,
+ local_inner_macros,
+ collapse_debuginfo,
}
}
@@ -841,11 +858,12 @@ impl SyntaxExtension {
call_site,
self.span,
self.allow_internal_unstable.clone(),
- self.allow_internal_unsafe,
- self.local_inner_macros,
self.edition,
macro_def_id,
parent_module,
+ self.allow_internal_unsafe,
+ self.local_inner_macros,
+ self.collapse_debuginfo,
)
}
}
@@ -1216,7 +1234,7 @@ pub fn expr_to_spanned_string<'a>(
);
Some((err, true))
}
- ast::LitKind::Err(_) => None,
+ ast::LitKind::Err => None,
_ => Some((cx.struct_span_err(l.span, err_msg), false)),
},
ast::ExprKind::Err => None,
diff --git a/compiler/rustc_expand/src/build.rs b/compiler/rustc_expand/src/build.rs
index fa3e2a4a5..50d2be3ce 100644
--- a/compiler/rustc_expand/src/build.rs
+++ b/compiler/rustc_expand/src/build.rs
@@ -3,6 +3,7 @@ use crate::base::ExtCtxt;
use rustc_ast::attr;
use rustc_ast::ptr::P;
use rustc_ast::{self as ast, AttrVec, BlockCheckMode, Expr, LocalKind, PatKind, UnOp};
+use rustc_data_structures::sync::Lrc;
use rustc_span::source_map::Spanned;
use rustc_span::symbol::{kw, sym, Ident, Symbol};
@@ -106,14 +107,13 @@ impl<'a> ExtCtxt<'a> {
&self,
span: Span,
ident: Ident,
- attrs: Vec<ast::Attribute>,
bounds: ast::GenericBounds,
default: Option<P<ast::Ty>>,
) -> ast::GenericParam {
ast::GenericParam {
ident: ident.with_span_pos(span),
id: ast::DUMMY_NODE_ID,
- attrs: attrs.into(),
+ attrs: AttrVec::new(),
bounds,
kind: ast::GenericParamKind::Type { default },
is_placeholder: false,
@@ -178,8 +178,7 @@ impl<'a> ExtCtxt<'a> {
ex: P<ast::Expr>,
) -> ast::Stmt {
let pat = if mutbl {
- let binding_mode = ast::BindingMode::ByValue(ast::Mutability::Mut);
- self.pat_ident_binding_mode(sp, ident, binding_mode)
+ self.pat_ident_binding_mode(sp, ident, ast::BindingAnnotation::MUT)
} else {
self.pat_ident(sp, ident)
};
@@ -330,23 +329,38 @@ impl<'a> ExtCtxt<'a> {
self.expr_struct(span, self.path_ident(span, id), fields)
}
- pub fn expr_lit(&self, span: Span, lit_kind: ast::LitKind) -> P<ast::Expr> {
+ fn expr_lit(&self, span: Span, lit_kind: ast::LitKind) -> P<ast::Expr> {
let lit = ast::Lit::from_lit_kind(lit_kind, span);
self.expr(span, ast::ExprKind::Lit(lit))
}
+
pub fn expr_usize(&self, span: Span, i: usize) -> P<ast::Expr> {
self.expr_lit(
span,
ast::LitKind::Int(i as u128, ast::LitIntType::Unsigned(ast::UintTy::Usize)),
)
}
+
pub fn expr_u32(&self, sp: Span, u: u32) -> P<ast::Expr> {
self.expr_lit(sp, ast::LitKind::Int(u as u128, ast::LitIntType::Unsigned(ast::UintTy::U32)))
}
+
pub fn expr_bool(&self, sp: Span, value: bool) -> P<ast::Expr> {
self.expr_lit(sp, ast::LitKind::Bool(value))
}
+ pub fn expr_str(&self, sp: Span, s: Symbol) -> P<ast::Expr> {
+ self.expr_lit(sp, ast::LitKind::Str(s, ast::StrStyle::Cooked))
+ }
+
+ pub fn expr_char(&self, sp: Span, ch: char) -> P<ast::Expr> {
+ self.expr_lit(sp, ast::LitKind::Char(ch))
+ }
+
+ pub fn expr_byte_str(&self, sp: Span, bytes: Vec<u8>) -> P<ast::Expr> {
+ self.expr_lit(sp, ast::LitKind::ByteStr(Lrc::from(bytes)))
+ }
+
/// `[expr1, expr2, ...]`
pub fn expr_array(&self, sp: Span, exprs: Vec<P<ast::Expr>>) -> P<ast::Expr> {
self.expr(sp, ast::ExprKind::Array(exprs))
@@ -357,10 +371,6 @@ impl<'a> ExtCtxt<'a> {
self.expr_addr_of(sp, self.expr_array(sp, exprs))
}
- pub fn expr_str(&self, sp: Span, s: Symbol) -> P<ast::Expr> {
- self.expr_lit(sp, ast::LitKind::Str(s, ast::StrStyle::Cooked))
- }
-
pub fn expr_cast(&self, sp: Span, expr: P<ast::Expr>, ty: P<ast::Ty>) -> P<ast::Expr> {
self.expr(sp, ast::ExprKind::Cast(expr, ty))
}
@@ -434,17 +444,16 @@ impl<'a> ExtCtxt<'a> {
self.pat(span, PatKind::Lit(expr))
}
pub fn pat_ident(&self, span: Span, ident: Ident) -> P<ast::Pat> {
- let binding_mode = ast::BindingMode::ByValue(ast::Mutability::Not);
- self.pat_ident_binding_mode(span, ident, binding_mode)
+ self.pat_ident_binding_mode(span, ident, ast::BindingAnnotation::NONE)
}
pub fn pat_ident_binding_mode(
&self,
span: Span,
ident: Ident,
- bm: ast::BindingMode,
+ ann: ast::BindingAnnotation,
) -> P<ast::Pat> {
- let pat = PatKind::Ident(bm, ident.with_span_pos(span), None);
+ let pat = PatKind::Ident(ann, ident.with_span_pos(span), None);
self.pat(span, pat)
}
pub fn pat_path(&self, span: Span, path: ast::Path) -> P<ast::Pat> {
@@ -564,7 +573,7 @@ impl<'a> ExtCtxt<'a> {
&self,
span: Span,
name: Ident,
- attrs: Vec<ast::Attribute>,
+ attrs: ast::AttrVec,
kind: ast::ItemKind,
) -> P<ast::Item> {
// FIXME: Would be nice if our generated code didn't violate
@@ -592,7 +601,7 @@ impl<'a> ExtCtxt<'a> {
mutbl: ast::Mutability,
expr: P<ast::Expr>,
) -> P<ast::Item> {
- self.item(span, name, Vec::new(), ast::ItemKind::Static(ty, mutbl, Some(expr)))
+ self.item(span, name, AttrVec::new(), ast::ItemKind::Static(ty, mutbl, Some(expr)))
}
pub fn item_const(
@@ -603,11 +612,11 @@ impl<'a> ExtCtxt<'a> {
expr: P<ast::Expr>,
) -> P<ast::Item> {
let def = ast::Defaultness::Final;
- self.item(span, name, Vec::new(), ast::ItemKind::Const(def, ty, Some(expr)))
+ self.item(span, name, AttrVec::new(), ast::ItemKind::Const(def, ty, Some(expr)))
}
pub fn attribute(&self, mi: ast::MetaItem) -> ast::Attribute {
- attr::mk_attr_outer(mi)
+ attr::mk_attr_outer(&self.sess.parse_sess.attr_id_generator, mi)
}
pub fn meta_word(&self, sp: Span, w: Symbol) -> ast::MetaItem {
diff --git a/compiler/rustc_expand/src/config.rs b/compiler/rustc_expand/src/config.rs
index 3e1acf438..8d4e36407 100644
--- a/compiler/rustc_expand/src/config.rs
+++ b/compiler/rustc_expand/src/config.rs
@@ -2,9 +2,9 @@
use rustc_ast::ptr::P;
use rustc_ast::token::{Delimiter, Token, TokenKind};
-use rustc_ast::tokenstream::{AttrAnnotatedTokenStream, AttrAnnotatedTokenTree};
+use rustc_ast::tokenstream::{AttrTokenStream, AttrTokenTree};
use rustc_ast::tokenstream::{DelimSpan, Spacing};
-use rustc_ast::tokenstream::{LazyTokenStream, TokenTree};
+use rustc_ast::tokenstream::{LazyAttrTokenStream, TokenTree};
use rustc_ast::NodeId;
use rustc_ast::{self as ast, AttrStyle, Attribute, HasAttrs, HasTokens, MetaItem};
use rustc_attr as attr;
@@ -215,7 +215,7 @@ pub fn features(
let features = match strip_unconfigured.configure_krate_attrs(krate.attrs) {
None => {
// The entire crate is unconfigured.
- krate.attrs = Vec::new();
+ krate.attrs = ast::AttrVec::new();
krate.items = Vec::new();
Features::default()
}
@@ -259,27 +259,27 @@ impl<'a> StripUnconfigured<'a> {
fn try_configure_tokens<T: HasTokens>(&self, node: &mut T) {
if self.config_tokens {
if let Some(Some(tokens)) = node.tokens_mut() {
- let attr_annotated_tokens = tokens.create_token_stream();
- *tokens = LazyTokenStream::new(self.configure_tokens(&attr_annotated_tokens));
+ let attr_stream = tokens.to_attr_token_stream();
+ *tokens = LazyAttrTokenStream::new(self.configure_tokens(&attr_stream));
}
}
}
- fn configure_krate_attrs(&self, mut attrs: Vec<ast::Attribute>) -> Option<Vec<ast::Attribute>> {
+ fn configure_krate_attrs(&self, mut attrs: ast::AttrVec) -> Option<ast::AttrVec> {
attrs.flat_map_in_place(|attr| self.process_cfg_attr(attr));
if self.in_cfg(&attrs) { Some(attrs) } else { None }
}
- /// Performs cfg-expansion on `stream`, producing a new `AttrAnnotatedTokenStream`.
+ /// Performs cfg-expansion on `stream`, producing a new `AttrTokenStream`.
/// This is only used during the invocation of `derive` proc-macros,
/// which require that we cfg-expand their entire input.
/// Normal cfg-expansion operates on parsed AST nodes via the `configure` method
- fn configure_tokens(&self, stream: &AttrAnnotatedTokenStream) -> AttrAnnotatedTokenStream {
- fn can_skip(stream: &AttrAnnotatedTokenStream) -> bool {
- stream.0.iter().all(|(tree, _spacing)| match tree {
- AttrAnnotatedTokenTree::Attributes(_) => false,
- AttrAnnotatedTokenTree::Token(_) => true,
- AttrAnnotatedTokenTree::Delimited(_, _, inner) => can_skip(inner),
+ fn configure_tokens(&self, stream: &AttrTokenStream) -> AttrTokenStream {
+ fn can_skip(stream: &AttrTokenStream) -> bool {
+ stream.0.iter().all(|tree| match tree {
+ AttrTokenTree::Attributes(_) => false,
+ AttrTokenTree::Token(..) => true,
+ AttrTokenTree::Delimited(_, _, inner) => can_skip(inner),
})
}
@@ -290,38 +290,36 @@ impl<'a> StripUnconfigured<'a> {
let trees: Vec<_> = stream
.0
.iter()
- .flat_map(|(tree, spacing)| match tree.clone() {
- AttrAnnotatedTokenTree::Attributes(mut data) => {
- let mut attrs: Vec<_> = std::mem::take(&mut data.attrs).into();
- attrs.flat_map_in_place(|attr| self.process_cfg_attr(attr));
- data.attrs = attrs.into();
+ .flat_map(|tree| match tree.clone() {
+ AttrTokenTree::Attributes(mut data) => {
+ data.attrs.flat_map_in_place(|attr| self.process_cfg_attr(attr));
if self.in_cfg(&data.attrs) {
- data.tokens = LazyTokenStream::new(
- self.configure_tokens(&data.tokens.create_token_stream()),
+ data.tokens = LazyAttrTokenStream::new(
+ self.configure_tokens(&data.tokens.to_attr_token_stream()),
);
- Some((AttrAnnotatedTokenTree::Attributes(data), *spacing)).into_iter()
+ Some(AttrTokenTree::Attributes(data)).into_iter()
} else {
None.into_iter()
}
}
- AttrAnnotatedTokenTree::Delimited(sp, delim, mut inner) => {
+ AttrTokenTree::Delimited(sp, delim, mut inner) => {
inner = self.configure_tokens(&inner);
- Some((AttrAnnotatedTokenTree::Delimited(sp, delim, inner), *spacing))
+ Some(AttrTokenTree::Delimited(sp, delim, inner))
.into_iter()
}
- AttrAnnotatedTokenTree::Token(ref token) if let TokenKind::Interpolated(ref nt) = token.kind => {
+ AttrTokenTree::Token(ref token, _) if let TokenKind::Interpolated(ref nt) = token.kind => {
panic!(
"Nonterminal should have been flattened at {:?}: {:?}",
token.span, nt
);
}
- AttrAnnotatedTokenTree::Token(token) => {
- Some((AttrAnnotatedTokenTree::Token(token), *spacing)).into_iter()
+ AttrTokenTree::Token(token, spacing) => {
+ Some(AttrTokenTree::Token(token, spacing)).into_iter()
}
})
.collect();
- AttrAnnotatedTokenStream::new(trees)
+ AttrTokenStream::new(trees)
}
/// Parse and expand all `cfg_attr` attributes into a list of attributes
@@ -390,7 +388,7 @@ impl<'a> StripUnconfigured<'a> {
attr: &Attribute,
(item, item_span): (ast::AttrItem, Span),
) -> Attribute {
- let orig_tokens = attr.tokens().to_tokenstream();
+ let orig_tokens = attr.tokens();
// We are taking an attribute of the form `#[cfg_attr(pred, attr)]`
// and producing an attribute of the form `#[attr]`. We
@@ -406,27 +404,33 @@ impl<'a> StripUnconfigured<'a> {
};
let pound_span = pound_token.span;
- let mut trees = vec![(AttrAnnotatedTokenTree::Token(pound_token), Spacing::Alone)];
+ let mut trees = vec![AttrTokenTree::Token(pound_token, Spacing::Alone)];
if attr.style == AttrStyle::Inner {
// For inner attributes, we do the same thing for the `!` in `#![some_attr]`
let TokenTree::Token(bang_token @ Token { kind: TokenKind::Not, .. }, _) = orig_trees.next().unwrap() else {
panic!("Bad tokens for attribute {:?}", attr);
};
- trees.push((AttrAnnotatedTokenTree::Token(bang_token), Spacing::Alone));
+ trees.push(AttrTokenTree::Token(bang_token, Spacing::Alone));
}
// We don't really have a good span to use for the synthesized `[]`
// in `#[attr]`, so just use the span of the `#` token.
- let bracket_group = AttrAnnotatedTokenTree::Delimited(
+ let bracket_group = AttrTokenTree::Delimited(
DelimSpan::from_single(pound_span),
Delimiter::Bracket,
item.tokens
.as_ref()
.unwrap_or_else(|| panic!("Missing tokens for {:?}", item))
- .create_token_stream(),
+ .to_attr_token_stream(),
+ );
+ trees.push(bracket_group);
+ let tokens = Some(LazyAttrTokenStream::new(AttrTokenStream::new(trees)));
+ let attr = attr::mk_attr_from_item(
+ &self.sess.parse_sess.attr_id_generator,
+ item,
+ tokens,
+ attr.style,
+ item_span,
);
- trees.push((bracket_group, Spacing::Alone));
- let tokens = Some(LazyTokenStream::new(AttrAnnotatedTokenStream::new(trees)));
- let attr = attr::mk_attr_from_item(item, tokens, attr.style, item_span);
if attr.has_name(sym::crate_type) {
self.sess.parse_sess.buffer_lint(
rustc_lint_defs::builtin::DEPRECATED_CFG_ATTR_CRATE_TYPE_NAME,
diff --git a/compiler/rustc_expand/src/errors.rs b/compiler/rustc_expand/src/errors.rs
new file mode 100644
index 000000000..0feae0deb
--- /dev/null
+++ b/compiler/rustc_expand/src/errors.rs
@@ -0,0 +1,48 @@
+use rustc_macros::SessionDiagnostic;
+use rustc_span::symbol::MacroRulesNormalizedIdent;
+use rustc_span::Span;
+
+#[derive(SessionDiagnostic)]
+#[diag(expand::expr_repeat_no_syntax_vars)]
+pub(crate) struct NoSyntaxVarsExprRepeat {
+ #[primary_span]
+ pub span: Span,
+}
+
+#[derive(SessionDiagnostic)]
+#[diag(expand::must_repeat_once)]
+pub(crate) struct MustRepeatOnce {
+ #[primary_span]
+ pub span: Span,
+}
+
+#[derive(SessionDiagnostic)]
+#[diag(expand::count_repetition_misplaced)]
+pub(crate) struct CountRepetitionMisplaced {
+ #[primary_span]
+ pub span: Span,
+}
+
+#[derive(SessionDiagnostic)]
+#[diag(expand::meta_var_expr_unrecognized_var)]
+pub(crate) struct MetaVarExprUnrecognizedVar {
+ #[primary_span]
+ pub span: Span,
+ pub key: MacroRulesNormalizedIdent,
+}
+
+#[derive(SessionDiagnostic)]
+#[diag(expand::var_still_repeating)]
+pub(crate) struct VarStillRepeating {
+ #[primary_span]
+ pub span: Span,
+ pub ident: MacroRulesNormalizedIdent,
+}
+
+#[derive(SessionDiagnostic)]
+#[diag(expand::meta_var_dif_seq_matchers)]
+pub(crate) struct MetaVarsDifSeqMatchers {
+ #[primary_span]
+ pub span: Span,
+ pub msg: String,
+}
diff --git a/compiler/rustc_expand/src/expand.rs b/compiler/rustc_expand/src/expand.rs
index 93eeca5b2..c2add852a 100644
--- a/compiler/rustc_expand/src/expand.rs
+++ b/compiler/rustc_expand/src/expand.rs
@@ -11,7 +11,7 @@ use rustc_ast::ptr::P;
use rustc_ast::token::{self, Delimiter};
use rustc_ast::tokenstream::TokenStream;
use rustc_ast::visit::{self, AssocCtxt, Visitor};
-use rustc_ast::{AssocItemKind, AstNodeWrapper, AttrStyle, ExprKind, ForeignItemKind};
+use rustc_ast::{AssocItemKind, AstNodeWrapper, AttrStyle, AttrVec, ExprKind, ForeignItemKind};
use rustc_ast::{HasAttrs, HasNodeId};
use rustc_ast::{Inline, ItemKind, MacArgs, MacStmtStyle, MetaItemKind, ModKind};
use rustc_ast::{NestedMetaItem, NodeId, PatKind, StmtKind, TyKind};
@@ -306,7 +306,7 @@ pub struct Invocation {
pub enum InvocationKind {
Bang {
- mac: ast::MacCall,
+ mac: P<ast::MacCall>,
span: Span,
},
Attr {
@@ -1001,7 +1001,7 @@ enum AddSemicolon {
/// of functionality used by `InvocationCollector`.
trait InvocationCollectorNode: HasAttrs + HasNodeId + Sized {
type OutputTy = SmallVec<[Self; 1]>;
- type AttrsTy: Deref<Target = [ast::Attribute]> = Vec<ast::Attribute>;
+ type AttrsTy: Deref<Target = [ast::Attribute]> = ast::AttrVec;
const KIND: AstFragmentKind;
fn to_annotatable(self) -> Annotatable;
fn fragment_to_output(fragment: AstFragment) -> Self::OutputTy;
@@ -1017,7 +1017,7 @@ trait InvocationCollectorNode: HasAttrs + HasNodeId + Sized {
fn is_mac_call(&self) -> bool {
false
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
unreachable!()
}
fn pre_flat_map_node_collect_attr(_cfg: &StripUnconfigured<'_>, _attr: &ast::Attribute) {}
@@ -1046,7 +1046,7 @@ impl InvocationCollectorNode for P<ast::Item> {
fn is_mac_call(&self) -> bool {
matches!(self.kind, ItemKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let node = self.into_inner();
match node.kind {
ItemKind::MacCall(mac) => (mac, node.attrs, AddSemicolon::No),
@@ -1154,7 +1154,7 @@ impl InvocationCollectorNode for AstNodeWrapper<P<ast::AssocItem>, TraitItemTag>
fn is_mac_call(&self) -> bool {
matches!(self.wrapped.kind, AssocItemKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let item = self.wrapped.into_inner();
match item.kind {
AssocItemKind::MacCall(mac) => (mac, item.attrs, AddSemicolon::No),
@@ -1179,7 +1179,7 @@ impl InvocationCollectorNode for AstNodeWrapper<P<ast::AssocItem>, ImplItemTag>
fn is_mac_call(&self) -> bool {
matches!(self.wrapped.kind, AssocItemKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let item = self.wrapped.into_inner();
match item.kind {
AssocItemKind::MacCall(mac) => (mac, item.attrs, AddSemicolon::No),
@@ -1202,7 +1202,7 @@ impl InvocationCollectorNode for P<ast::ForeignItem> {
fn is_mac_call(&self) -> bool {
matches!(self.kind, ForeignItemKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let node = self.into_inner();
match node.kind {
ForeignItemKind::MacCall(mac) => (mac, node.attrs, AddSemicolon::No),
@@ -1323,7 +1323,7 @@ impl InvocationCollectorNode for ast::Stmt {
StmtKind::Local(..) | StmtKind::Empty => false,
}
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
// We pull macro invocations (both attributes and fn-like macro calls) out of their
// `StmtKind`s and treat them as statement macro invocations, not as items or expressions.
let (add_semicolon, mac, attrs) = match self.kind {
@@ -1333,7 +1333,7 @@ impl InvocationCollectorNode for ast::Stmt {
}
StmtKind::Item(item) => match item.into_inner() {
ast::Item { kind: ItemKind::MacCall(mac), attrs, .. } => {
- (mac.args.need_semicolon(), mac, attrs.into())
+ (mac.args.need_semicolon(), mac, attrs)
}
_ => unreachable!(),
},
@@ -1387,10 +1387,10 @@ impl InvocationCollectorNode for P<ast::Ty> {
fn is_mac_call(&self) -> bool {
matches!(self.kind, ast::TyKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let node = self.into_inner();
match node.kind {
- TyKind::MacCall(mac) => (mac, Vec::new(), AddSemicolon::No),
+ TyKind::MacCall(mac) => (mac, AttrVec::new(), AddSemicolon::No),
_ => unreachable!(),
}
}
@@ -1411,10 +1411,10 @@ impl InvocationCollectorNode for P<ast::Pat> {
fn is_mac_call(&self) -> bool {
matches!(self.kind, PatKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let node = self.into_inner();
match node.kind {
- PatKind::MacCall(mac) => (mac, Vec::new(), AddSemicolon::No),
+ PatKind::MacCall(mac) => (mac, AttrVec::new(), AddSemicolon::No),
_ => unreachable!(),
}
}
@@ -1439,7 +1439,7 @@ impl InvocationCollectorNode for P<ast::Expr> {
fn is_mac_call(&self) -> bool {
matches!(self.kind, ExprKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let node = self.into_inner();
match node.kind {
ExprKind::MacCall(mac) => (mac, node.attrs, AddSemicolon::No),
@@ -1466,7 +1466,7 @@ impl InvocationCollectorNode for AstNodeWrapper<P<ast::Expr>, OptExprTag> {
fn is_mac_call(&self) -> bool {
matches!(self.wrapped.kind, ast::ExprKind::MacCall(..))
}
- fn take_mac_call(self) -> (ast::MacCall, Self::AttrsTy, AddSemicolon) {
+ fn take_mac_call(self) -> (P<ast::MacCall>, Self::AttrsTy, AddSemicolon) {
let node = self.wrapped.into_inner();
match node.kind {
ExprKind::MacCall(mac) => (mac, node.attrs, AddSemicolon::No),
@@ -1512,7 +1512,7 @@ impl<'a, 'b> InvocationCollector<'a, 'b> {
placeholder(fragment_kind, NodeId::placeholder_from_expn_id(expn_id), vis)
}
- fn collect_bang(&mut self, mac: ast::MacCall, kind: AstFragmentKind) -> AstFragment {
+ fn collect_bang(&mut self, mac: P<ast::MacCall>, kind: AstFragmentKind) -> AstFragment {
// cache the macro call span so that it can be
// easily adjusted for incremental compilation
let span = mac.span();
@@ -1646,7 +1646,11 @@ impl<'a, 'b> InvocationCollector<'a, 'b> {
fn expand_cfg_attr(&self, node: &mut impl HasAttrs, attr: ast::Attribute, pos: usize) {
node.visit_attrs(|attrs| {
- attrs.splice(pos..pos, self.cfg().expand_cfg_attr(attr, false));
+ // Repeated `insert` calls is inefficient, but the number of
+ // insertions is almost always 0 or 1 in practice.
+ for cfg in self.cfg().expand_cfg_attr(attr, false).into_iter().rev() {
+ attrs.insert(pos, cfg)
+ }
});
}
diff --git a/compiler/rustc_expand/src/lib.rs b/compiler/rustc_expand/src/lib.rs
index 9d0232822..ffc9abe64 100644
--- a/compiler/rustc_expand/src/lib.rs
+++ b/compiler/rustc_expand/src/lib.rs
@@ -3,7 +3,7 @@
#![feature(associated_type_defaults)]
#![feature(if_let_guard)]
#![feature(let_chains)]
-#![feature(let_else)]
+#![cfg_attr(bootstrap, feature(let_else))]
#![feature(macro_metavar_expr)]
#![feature(proc_macro_diagnostic)]
#![feature(proc_macro_internals)]
@@ -15,6 +15,9 @@
#[macro_use]
extern crate rustc_macros;
+#[macro_use]
+extern crate tracing;
+
extern crate proc_macro as pm;
mod placeholders;
@@ -26,6 +29,7 @@ pub mod base;
pub mod build;
#[macro_use]
pub mod config;
+pub mod errors;
pub mod expand;
pub mod module;
pub mod proc_macro;
diff --git a/compiler/rustc_expand/src/mbe/macro_parser.rs b/compiler/rustc_expand/src/mbe/macro_parser.rs
index 4fa91dfea..c8bdc3931 100644
--- a/compiler/rustc_expand/src/mbe/macro_parser.rs
+++ b/compiler/rustc_expand/src/mbe/macro_parser.rs
@@ -430,7 +430,7 @@ impl TtParser {
}
}
MatcherLoc::Delimited => {
- // Entering the delimeter is trivial.
+ // Entering the delimiter is trivial.
mp.idx += 1;
self.cur_mps.push(mp);
}
diff --git a/compiler/rustc_expand/src/mbe/macro_rules.rs b/compiler/rustc_expand/src/mbe/macro_rules.rs
index f7e1575af..7764ffd24 100644
--- a/compiler/rustc_expand/src/mbe/macro_rules.rs
+++ b/compiler/rustc_expand/src/mbe/macro_rules.rs
@@ -14,7 +14,7 @@ use rustc_ast::{NodeId, DUMMY_NODE_ID};
use rustc_ast_pretty::pprust;
use rustc_attr::{self as attr, TransparencyError};
use rustc_data_structures::fx::{FxHashMap, FxIndexMap};
-use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder, ErrorGuaranteed};
+use rustc_errors::{Applicability, Diagnostic, DiagnosticBuilder};
use rustc_feature::Features;
use rustc_lint_defs::builtin::{
RUST_2021_INCOMPATIBLE_OR_PATTERNS, SEMICOLON_IN_EXPRESSIONS_FROM_MACROS,
@@ -32,7 +32,6 @@ use rustc_span::Span;
use std::borrow::Cow;
use std::collections::hash_map::Entry;
use std::{mem, slice};
-use tracing::debug;
pub(crate) struct ParserAnyMacro<'a> {
parser: Parser<'a>,
@@ -608,11 +607,7 @@ enum ExplainDocComment {
},
}
-fn annotate_doc_comment(
- err: &mut DiagnosticBuilder<'_, ErrorGuaranteed>,
- sm: &SourceMap,
- span: Span,
-) {
+fn annotate_doc_comment(err: &mut Diagnostic, sm: &SourceMap, span: Span) {
if let Ok(src) = sm.span_to_snippet(span) {
if src.starts_with("///") || src.starts_with("/**") {
err.subdiagnostic(ExplainDocComment::Outer { span });
@@ -980,7 +975,7 @@ impl<'tt> TokenSet<'tt> {
self.maybe_empty = false;
}
- // Adds `tok` to the set for `self`, marking sequence as non-empy.
+ // Adds `tok` to the set for `self`, marking sequence as non-empty.
fn add_one(&mut self, tt: TtHandle<'tt>) {
if !self.tokens.contains(&tt) {
self.tokens.push(tt);
diff --git a/compiler/rustc_expand/src/mbe/metavar_expr.rs b/compiler/rustc_expand/src/mbe/metavar_expr.rs
index fc808401a..99fe47454 100644
--- a/compiler/rustc_expand/src/mbe/metavar_expr.rs
+++ b/compiler/rustc_expand/src/mbe/metavar_expr.rs
@@ -112,7 +112,7 @@ fn parse_depth<'sess>(
"meta-variable expression depth must be a literal"
));
};
- if let Ok(lit_kind) = LitKind::from_lit_token(*lit)
+ if let Ok(lit_kind) = LitKind::from_token_lit(*lit)
&& let LitKind::Int(n_u128, LitIntType::Unsuffixed) = lit_kind
&& let Ok(n_usize) = usize::try_from(n_u128)
{
diff --git a/compiler/rustc_expand/src/mbe/transcribe.rs b/compiler/rustc_expand/src/mbe/transcribe.rs
index e47ea83ac..bec6d1a2d 100644
--- a/compiler/rustc_expand/src/mbe/transcribe.rs
+++ b/compiler/rustc_expand/src/mbe/transcribe.rs
@@ -1,4 +1,8 @@
use crate::base::ExtCtxt;
+use crate::errors::{
+ CountRepetitionMisplaced, MetaVarExprUnrecognizedVar, MetaVarsDifSeqMatchers, MustRepeatOnce,
+ NoSyntaxVarsExprRepeat, VarStillRepeating,
+};
use crate::mbe::macro_parser::{MatchedNonterminal, MatchedSeq, MatchedTokenTree, NamedMatch};
use crate::mbe::{self, MetaVarExpr};
use rustc_ast::mut_visit::{self, MutVisitor};
@@ -165,11 +169,7 @@ pub(super) fn transcribe<'a>(
seq @ mbe::TokenTree::Sequence(_, delimited) => {
match lockstep_iter_size(&seq, interp, &repeats) {
LockstepIterSize::Unconstrained => {
- return Err(cx.struct_span_err(
- seq.span(), /* blame macro writer */
- "attempted to repeat an expression containing no syntax variables \
- matched as repeating at this depth",
- ));
+ return Err(cx.create_err(NoSyntaxVarsExprRepeat { span: seq.span() }));
}
LockstepIterSize::Contradiction(msg) => {
@@ -177,7 +177,7 @@ pub(super) fn transcribe<'a>(
// happens when two meta-variables are used in the same repetition in a
// sequence, but they come from different sequence matchers and repeat
// different amounts.
- return Err(cx.struct_span_err(seq.span(), &msg));
+ return Err(cx.create_err(MetaVarsDifSeqMatchers { span: seq.span(), msg }));
}
LockstepIterSize::Constraint(len, _) => {
@@ -193,10 +193,7 @@ pub(super) fn transcribe<'a>(
// FIXME: this really ought to be caught at macro definition
// time... It happens when the Kleene operator in the matcher and
// the body for the same meta-variable do not match.
- return Err(cx.struct_span_err(
- sp.entire(),
- "this must repeat at least once",
- ));
+ return Err(cx.create_err(MustRepeatOnce { span: sp.entire() }));
}
} else {
// 0 is the initial counter (we have done 0 repetitions so far). `len`
@@ -239,10 +236,7 @@ pub(super) fn transcribe<'a>(
}
MatchedSeq(..) => {
// We were unable to descend far enough. This is an error.
- return Err(cx.struct_span_err(
- sp, /* blame the macro writer */
- &format!("variable '{}' is still repeating at this depth", ident),
- ));
+ return Err(cx.create_err(VarStillRepeating { span: sp, ident }));
}
}
} else {
@@ -448,10 +442,7 @@ fn count_repetitions<'a>(
match matched {
MatchedTokenTree(_) | MatchedNonterminal(_) => {
if declared_lhs_depth == 0 {
- return Err(cx.struct_span_err(
- sp.entire(),
- "`count` can not be placed inside the inner-most repetition",
- ));
+ return Err(cx.create_err(CountRepetitionMisplaced { span: sp.entire() }));
}
match depth_opt {
None => Ok(1),
@@ -499,12 +490,7 @@ where
{
let span = ident.span;
let key = MacroRulesNormalizedIdent::new(ident);
- interp.get(&key).ok_or_else(|| {
- cx.struct_span_err(
- span,
- &format!("variable `{}` is not recognized in meta-variable expression", key),
- )
- })
+ interp.get(&key).ok_or_else(|| cx.create_err(MetaVarExprUnrecognizedVar { span, key }))
}
/// Used by meta-variable expressions when an user input is out of the actual declared bounds. For
diff --git a/compiler/rustc_expand/src/module.rs b/compiler/rustc_expand/src/module.rs
index 0315d1163..9002a24e4 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, Inline, Item, ModSpans};
+use rustc_ast::{token, AttrVec, Attribute, Inline, Item, ModSpans};
use rustc_errors::{struct_span_err, DiagnosticBuilder, ErrorGuaranteed};
use rustc_parse::new_parser_from_file;
use rustc_parse::validate_attr;
@@ -48,7 +48,7 @@ pub(crate) fn parse_external_mod(
span: Span, // The span to blame on errors.
module: &ModuleData,
mut dir_ownership: DirOwnership,
- attrs: &mut Vec<Attribute>,
+ attrs: &mut AttrVec,
) -> ParsedExternalMod {
// We bail on the first error, but that error does not cause a fatal error... (1)
let result: Result<_, ModError<'_>> = try {
@@ -63,9 +63,9 @@ pub(crate) fn parse_external_mod(
// Actually parse the external file as a module.
let mut parser = new_parser_from_file(&sess.parse_sess, &mp.file_path, Some(span));
- let (mut inner_attrs, items, inner_span) =
+ let (inner_attrs, items, inner_span) =
parser.parse_mod(&token::Eof).map_err(|err| ModError::ParserError(err))?;
- attrs.append(&mut inner_attrs);
+ attrs.extend(inner_attrs);
(items, inner_span, mp.file_path)
};
// (1) ...instead, we return a dummy module.
diff --git a/compiler/rustc_expand/src/placeholders.rs b/compiler/rustc_expand/src/placeholders.rs
index 0d5d6ee07..3b0d5ddb9 100644
--- a/compiler/rustc_expand/src/placeholders.rs
+++ b/compiler/rustc_expand/src/placeholders.rs
@@ -15,16 +15,16 @@ pub fn placeholder(
id: ast::NodeId,
vis: Option<ast::Visibility>,
) -> AstFragment {
- fn mac_placeholder() -> ast::MacCall {
- ast::MacCall {
+ fn mac_placeholder() -> P<ast::MacCall> {
+ P(ast::MacCall {
path: ast::Path { span: DUMMY_SP, segments: Vec::new(), tokens: None },
args: P(ast::MacArgs::Empty),
prior_type_ascription: None,
- }
+ })
}
let ident = Ident::empty();
- let attrs = Vec::new();
+ let attrs = ast::AttrVec::new();
let vis = vis.unwrap_or(ast::Visibility {
span: DUMMY_SP,
kind: ast::VisibilityKind::Inherited,
diff --git a/compiler/rustc_expand/src/proc_macro_server.rs b/compiler/rustc_expand/src/proc_macro_server.rs
index 7d9a4aed0..59a7b668a 100644
--- a/compiler/rustc_expand/src/proc_macro_server.rs
+++ b/compiler/rustc_expand/src/proc_macro_server.rs
@@ -6,7 +6,7 @@ use rustc_ast::tokenstream::{self, Spacing::*, TokenStream};
use rustc_ast_pretty::pprust;
use rustc_data_structures::fx::FxHashMap;
use rustc_data_structures::sync::Lrc;
-use rustc_errors::{Diagnostic, MultiSpan, PResult};
+use rustc_errors::{MultiSpan, PResult};
use rustc_parse::lexer::nfc_normalize;
use rustc_parse::parse_stream_from_source_str;
use rustc_session::parse::ParseSess;
@@ -15,7 +15,7 @@ use rustc_span::symbol::{self, sym, Symbol};
use rustc_span::{BytePos, FileName, Pos, SourceFile, Span};
use pm::bridge::{
- server, DelimSpan, ExpnGlobals, Group, Ident, LitKind, Literal, Punct, TokenTree,
+ server, DelimSpan, Diagnostic, ExpnGlobals, Group, Ident, LitKind, Literal, Punct, TokenTree,
};
use pm::{Delimiter, Level, LineColumn};
use std::ops::Bound;
@@ -368,8 +368,6 @@ impl server::Types for Rustc<'_, '_> {
type FreeFunctions = FreeFunctions;
type TokenStream = TokenStream;
type SourceFile = Lrc<SourceFile>;
- type MultiSpan = Vec<Span>;
- type Diagnostic = Diagnostic;
type Span = Span;
type Symbol = Symbol;
}
@@ -436,6 +434,21 @@ impl server::FreeFunctions for Rustc<'_, '_> {
span: self.call_site,
})
}
+
+ fn emit_diagnostic(&mut self, diagnostic: Diagnostic<Self::Span>) {
+ let mut diag =
+ rustc_errors::Diagnostic::new(diagnostic.level.to_internal(), diagnostic.message);
+ diag.set_span(MultiSpan::from_spans(diagnostic.spans));
+ for child in diagnostic.children {
+ diag.sub(
+ child.level.to_internal(),
+ child.message,
+ MultiSpan::from_spans(child.spans),
+ None,
+ );
+ }
+ self.sess().span_diagnostic.emit_diagnostic(&mut diag);
+ }
}
impl server::TokenStream for Rustc<'_, '_> {
@@ -486,20 +499,26 @@ impl server::TokenStream for Rustc<'_, '_> {
// We don't use `TokenStream::from_ast` as the tokenstream currently cannot
// be recovered in the general case.
match &expr.kind {
- ast::ExprKind::Lit(l) if l.token.kind == token::Bool => Ok(
- tokenstream::TokenStream::token_alone(token::Ident(l.token.symbol, false), l.span),
- ),
+ ast::ExprKind::Lit(l) if l.token_lit.kind == token::Bool => {
+ Ok(tokenstream::TokenStream::token_alone(
+ token::Ident(l.token_lit.symbol, false),
+ l.span,
+ ))
+ }
ast::ExprKind::Lit(l) => {
- Ok(tokenstream::TokenStream::token_alone(token::Literal(l.token), l.span))
+ Ok(tokenstream::TokenStream::token_alone(token::Literal(l.token_lit), l.span))
}
ast::ExprKind::Unary(ast::UnOp::Neg, e) => match &e.kind {
- ast::ExprKind::Lit(l) => match l.token {
+ ast::ExprKind::Lit(l) => match l.token_lit {
token::Lit { kind: token::Integer | token::Float, .. } => {
Ok(Self::TokenStream::from_iter([
// FIXME: The span of the `-` token is lost when
// parsing, so we cannot faithfully recover it here.
tokenstream::TokenTree::token_alone(token::BinOp(token::Minus), e.span),
- tokenstream::TokenTree::token_alone(token::Literal(l.token), l.span),
+ tokenstream::TokenTree::token_alone(
+ token::Literal(l.token_lit),
+ l.span,
+ ),
]))
}
_ => Err(()),
@@ -577,38 +596,6 @@ impl server::SourceFile for Rustc<'_, '_> {
}
}
-impl server::MultiSpan for Rustc<'_, '_> {
- fn new(&mut self) -> Self::MultiSpan {
- vec![]
- }
-
- fn push(&mut self, spans: &mut Self::MultiSpan, span: Self::Span) {
- spans.push(span)
- }
-}
-
-impl server::Diagnostic for Rustc<'_, '_> {
- fn new(&mut self, level: Level, msg: &str, spans: Self::MultiSpan) -> Self::Diagnostic {
- let mut diag = Diagnostic::new(level.to_internal(), msg);
- diag.set_span(MultiSpan::from_spans(spans));
- diag
- }
-
- fn sub(
- &mut self,
- diag: &mut Self::Diagnostic,
- level: Level,
- msg: &str,
- spans: Self::MultiSpan,
- ) {
- diag.sub(level.to_internal(), msg, MultiSpan::from_spans(spans), None);
- }
-
- fn emit(&mut self, mut diag: Self::Diagnostic) {
- self.sess().span_diagnostic.emit_diagnostic(&mut diag);
- }
-}
-
impl server::Span for Rustc<'_, '_> {
fn debug(&mut self, span: Self::Span) -> String {
if self.ecx.ecfg.span_debug {
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-27 23:08:17 +0000