Add filtering options to `rustc_on_unimplemented`

- filter error on the evaluated value of `Self`
 - filter error on the evaluated value of the type arguments
 - add argument to include custom note in diagnostic
 - allow the parser to parse `Self` when processing attributes
 - add custom message to binops
This commit is contained in:
Esteban Küber 2018-01-19 19:57:10 -08:00
parent 56733bc9f8
commit c1383e4dc4
40 changed files with 312 additions and 403 deletions

View File

@ -75,7 +75,93 @@
/// ```
#[lang = "add"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} + {RHS}`"]
#[rustc_on_unimplemented(
on(
any(
all(_Self="i128", RHS="i64"),
all(_Self="i128", RHS="i32"),
all(_Self="i128", RHS="i16"),
all(_Self="i128", RHS="i8"),
all(_Self="i64", RHS="i32"),
all(_Self="i64", RHS="i16"),
all(_Self="i64", RHS="i8"),
all(_Self="i32", RHS="i16"),
all(_Self="i32", RHS="i8"),
all(_Self="i16", RHS="i8"),
all(_Self="u128", RHS="u64"),
all(_Self="u128", RHS="u32"),
all(_Self="u128", RHS="u16"),
all(_Self="u128", RHS="u8"),
all(_Self="u64", RHS="u32"),
all(_Self="u64", RHS="u16"),
all(_Self="u64", RHS="u8"),
all(_Self="u32", RHS="u16"),
all(_Self="u32", RHS="u8"),
all(_Self="u16", RHS="u8"),
all(_Self="f64", RHS="i32"),
all(_Self="f64", RHS="i16"),
all(_Self="f64", RHS="i8"),
all(_Self="f64", RHS="u32"),
all(_Self="f64", RHS="u16"),
all(_Self="f64", RHS="u8"),
all(_Self="f32", RHS="i16"),
all(_Self="f32", RHS="i8"),
all(_Self="f32", RHS="u16"),
all(_Self="f32", RHS="u8"),
),
message="cannot add `{RHS}` to `{Self}`",
label="no implementation for `{Self} + {RHS}`, but you can safely cast \
`{RHS}` into `{Self}` using `as {Self}`",
),
on(
any(
all(RHS="i128", _Self="i64"),
all(RHS="i128", _Self="i32"),
all(RHS="i128", _Self="i16"),
all(RHS="i128", _Self="i8"),
all(RHS="i64", _Self="i32"),
all(RHS="i64", _Self="i16"),
all(RHS="i64", _Self="i8"),
all(RHS="i32", _Self="i16"),
all(RHS="i32", _Self="i8"),
all(RHS="i16", _Self="i8"),
all(RHS="u128", _Self="u64"),
all(RHS="u128", _Self="u32"),
all(RHS="u128", _Self="u16"),
all(RHS="u128", _Self="u8"),
all(RHS="u64", _Self="u32"),
all(RHS="u64", _Self="u16"),
all(RHS="u64", _Self="u8"),
all(RHS="u32", _Self="u16"),
all(RHS="u32", _Self="u8"),
all(RHS="u16", _Self="u8"),
all(RHS="f64", _Self="i32"),
all(RHS="f64", _Self="i16"),
all(RHS="f64", _Self="i8"),
all(RHS="f64", _Self="u32"),
all(RHS="f64", _Self="u16"),
all(RHS="f64", _Self="u8"),
all(RHS="f32", _Self="i16"),
all(RHS="f32", _Self="i8"),
all(RHS="f32", _Self="u16"),
all(RHS="f32", _Self="u8"),
),
message="cannot add `{RHS}` to `{Self}`",
label="no implementation for `{Self} + {RHS}`, but you can safely turn \
`{Self}` into `{RHS}` using `as {RHS}`",
),
on(
all(_Self="{integer}", RHS="{float}"),
message="cannot add a float to an integer",
label="no implementation for `{Self} + {RHS}`",
),
on(
all(_Self="{float}", RHS="{integer}"),
message="cannot add an integer to a float",
label="no implementation for `{Self} + {RHS}`",
),
message="cannot add `{RHS}` to `{Self}`",
label="no implementation for `{Self} + {RHS}`")]
pub trait Add<RHS=Self> {
/// The resulting type after applying the `+` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -170,7 +256,8 @@ add_impl! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "sub"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} - {RHS}`"]
#[rustc_on_unimplemented(message="cannot substract `{RHS}` from `{Self}`",
label="no implementation for `{Self} - {RHS}`")]
pub trait Sub<RHS=Self> {
/// The resulting type after applying the `-` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -287,7 +374,8 @@ sub_impl! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "mul"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} * {RHS}`"]
#[rustc_on_unimplemented(message="cannot multiply `{RHS}` to `{Self}`",
label="no implementation for `{Self} * {RHS}`")]
pub trait Mul<RHS=Self> {
/// The resulting type after applying the `*` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -408,7 +496,8 @@ mul_impl! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "div"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} / {RHS}`"]
#[rustc_on_unimplemented(message="cannot divide `{Self}` by `{RHS}`",
label="no implementation for `{Self} / {RHS}`")]
pub trait Div<RHS=Self> {
/// The resulting type after applying the `/` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -490,7 +579,8 @@ div_impl_float! { f32 f64 }
/// ```
#[lang = "rem"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} % {RHS}`"]
#[rustc_on_unimplemented(message="cannot mod `{Self}` by `{RHS}`",
label="no implementation for `{Self} % {RHS}`")]
pub trait Rem<RHS=Self> {
/// The resulting type after applying the `%` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -647,7 +737,8 @@ neg_impl_numeric! { isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "add_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} += {Rhs}`"]
#[rustc_on_unimplemented(message="cannot add-assign `{Rhs}` to `{Self}`",
label="no implementation for `{Self} += {Rhs}`")]
pub trait AddAssign<Rhs=Self> {
/// Performs the `+=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -700,7 +791,8 @@ add_assign_impl! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "sub_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} -= {Rhs}`"]
#[rustc_on_unimplemented(message="cannot substract-assign `{Rhs}` from `{Self}`",
label="no implementation for `{Self} -= {Rhs}`")]
pub trait SubAssign<Rhs=Self> {
/// Performs the `-=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -744,7 +836,8 @@ sub_assign_impl! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "mul_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} *= {Rhs}`"]
#[rustc_on_unimplemented(message="cannot multiply-assign `{Rhs}` to `{Self}`",
label="no implementation for `{Self} *= {Rhs}`")]
pub trait MulAssign<Rhs=Self> {
/// Performs the `*=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -788,7 +881,8 @@ mul_assign_impl! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "div_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} /= {Rhs}`"]
#[rustc_on_unimplemented(message="cannot divide-assign `{Self}` by `{Rhs}`",
label="no implementation for `{Self} /= {Rhs}`")]
pub trait DivAssign<Rhs=Self> {
/// Performs the `/=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -835,7 +929,8 @@ div_assign_impl! { usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 f32 f64 }
/// ```
#[lang = "rem_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} %= {Rhs}`"]
#[rustc_on_unimplemented(message="cannot mod-assign `{Self}` by `{Rhs}``",
label="no implementation for `{Self} %= {Rhs}`")]
pub trait RemAssign<Rhs=Self> {
/// Performs the `%=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]

View File

@ -120,7 +120,8 @@ not_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
/// ```
#[lang = "bitand"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} & {RHS}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} & {RHS}`",
label="no implementation for `{Self} & {RHS}`")]
pub trait BitAnd<RHS=Self> {
/// The resulting type after applying the `&` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -201,7 +202,8 @@ bitand_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
/// ```
#[lang = "bitor"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} | {RHS}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} | {RHS}`",
label="no implementation for `{Self} | {RHS}`")]
pub trait BitOr<RHS=Self> {
/// The resulting type after applying the `|` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -285,7 +287,8 @@ bitor_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
/// ```
#[lang = "bitxor"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} ^ {RHS}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} ^ {RHS}`",
label="no implementation for `{Self} ^ {RHS}`")]
pub trait BitXor<RHS=Self> {
/// The resulting type after applying the `^` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -365,7 +368,8 @@ bitxor_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
/// ```
#[lang = "shl"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} << {RHS}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} << {RHS}`",
label="no implementation for `{Self} << {RHS}`")]
pub trait Shl<RHS> {
/// The resulting type after applying the `<<` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -466,7 +470,8 @@ shl_impl_all! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 isize i128 }
/// ```
#[lang = "shr"]
#[stable(feature = "rust1", since = "1.0.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} >> {RHS}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} >> {RHS}`",
label="no implementation for `{Self} >> {RHS}`")]
pub trait Shr<RHS> {
/// The resulting type after applying the `>>` operator.
#[stable(feature = "rust1", since = "1.0.0")]
@ -579,7 +584,8 @@ shr_impl_all! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize }
/// ```
#[lang = "bitand_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} &= {Rhs}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} &= {Rhs}`",
label="no implementation for `{Self} &= {Rhs}`")]
pub trait BitAndAssign<Rhs=Self> {
/// Performs the `&=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -626,7 +632,8 @@ bitand_assign_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
/// ```
#[lang = "bitor_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} |= {Rhs}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} |= {Rhs}`",
label="no implementation for `{Self} |= {Rhs}`")]
pub trait BitOrAssign<Rhs=Self> {
/// Performs the `|=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -673,7 +680,8 @@ bitor_assign_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
/// ```
#[lang = "bitxor_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} ^= {Rhs}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} ^= {Rhs}`",
label="no implementation for `{Self} ^= {Rhs}`")]
pub trait BitXorAssign<Rhs=Self> {
/// Performs the `^=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -718,7 +726,8 @@ bitxor_assign_impl! { bool usize u8 u16 u32 u64 u128 isize i8 i16 i32 i64 i128 }
/// ```
#[lang = "shl_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} <<= {Rhs}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} <<= {Rhs}`",
label="no implementation for `{Self} <<= {Rhs}`")]
pub trait ShlAssign<Rhs> {
/// Performs the `<<=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]
@ -784,7 +793,8 @@ shl_assign_impl_all! { u8 u16 u32 u64 u128 usize i8 i16 i32 i64 i128 isize }
/// ```
#[lang = "shr_assign"]
#[stable(feature = "op_assign_traits", since = "1.8.0")]
#[rustc_on_unimplemented = "no implementation for `{Self} >>= {Rhs}`"]
#[rustc_on_unimplemented(message="no implementation for `{Self} >>= {Rhs}`",
label="no implementation for `{Self} >>= {Rhs}`")]
pub trait ShrAssign<Rhs=Self> {
/// Performs the `>>=` operation.
#[stable(feature = "op_assign_traits", since = "1.8.0")]

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@ -348,7 +348,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
if direct {
// this is a "direct", user-specified, rather than derived,
// obligation.
flags.push(("direct", None));
flags.push(("direct".to_string(), None));
}
if let ObligationCauseCode::ItemObligation(item) = obligation.cause.code {
@ -359,21 +359,35 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
// Currently I'm leaving it for what I need for `try`.
if self.tcx.trait_of_item(item) == Some(trait_ref.def_id) {
method = self.tcx.item_name(item);
flags.push(("from_method", None));
flags.push(("from_method", Some(&*method)));
flags.push(("from_method".to_string(), None));
flags.push(("from_method".to_string(), Some(method.to_string())));
}
}
if let Some(k) = obligation.cause.span.compiler_desugaring_kind() {
desugaring = k.as_symbol().as_str();
flags.push(("from_desugaring", None));
flags.push(("from_desugaring", Some(&*desugaring)));
flags.push(("from_desugaring".to_string(), None));
flags.push(("from_desugaring".to_string(), Some(desugaring.to_string())));
}
let generics = self.tcx.generics_of(def_id);
let self_ty = trait_ref.self_ty();
let self_ty_str = self_ty.to_string();
// FIXME: remove once `Self` is accepted by the compiler
flags.push(("_Self".to_string(), Some(self_ty_str.clone())));
flags.push(("Self".to_string(), Some(self_ty_str.clone())));
for param in generics.types.iter() {
let name = param.name.as_str().to_string();
let ty = trait_ref.substs.type_for_def(param);
let ty_str = ty.to_string();
flags.push((name.clone(),
Some(ty_str.clone())));
}
if let Ok(Some(command)) = OnUnimplementedDirective::of_item(
self.tcx, trait_ref.def_id, def_id
) {
command.evaluate(self.tcx, trait_ref, &flags)
command.evaluate(self.tcx, trait_ref, &flags[..])
} else {
OnUnimplementedNote::empty()
}
@ -549,7 +563,7 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
.map(|t| (format!(" in `{}`", t), format!("within `{}`, ", t)))
.unwrap_or((String::new(), String::new()));
let OnUnimplementedNote { message, label }
let OnUnimplementedNote { message, label, note }
= self.on_unimplemented_note(trait_ref, obligation);
let have_alt_message = message.is_some() || label.is_some();
@ -578,6 +592,10 @@ impl<'a, 'gcx, 'tcx> InferCtxt<'a, 'gcx, 'tcx> {
trait_ref,
trait_ref.self_ty()));
}
if let Some(ref s) = note {
// If it has a custom "#[rustc_on_unimplemented]" note, let's display it
err.note(s.as_str());
}
self.suggest_borrow_on_unsized_slice(&obligation.cause.code, &mut err);

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@ -29,16 +29,18 @@ pub struct OnUnimplementedDirective {
pub subcommands: Vec<OnUnimplementedDirective>,
pub message: Option<OnUnimplementedFormatString>,
pub label: Option<OnUnimplementedFormatString>,
pub note: Option<OnUnimplementedFormatString>,
}
pub struct OnUnimplementedNote {
pub message: Option<String>,
pub label: Option<String>,
pub note: Option<String>,
}
impl OnUnimplementedNote {
pub fn empty() -> Self {
OnUnimplementedNote { message: None, label: None }
OnUnimplementedNote { message: None, label: None, note: None }
}
}
@ -89,6 +91,7 @@ impl<'a, 'gcx, 'tcx> OnUnimplementedDirective {
let mut message = None;
let mut label = None;
let mut note = None;
let mut subcommands = vec![];
for item in item_iter {
if item.check_name("message") && message.is_none() {
@ -103,8 +106,14 @@ impl<'a, 'gcx, 'tcx> OnUnimplementedDirective {
tcx, trait_def_id, label_.as_str(), span)?);
continue;
}
} else if item.check_name("note") && note.is_none() {
if let Some(note_) = item.value_str() {
note = Some(OnUnimplementedFormatString::try_parse(
tcx, trait_def_id, note_.as_str(), span)?);
continue;
}
} else if item.check_name("on") && is_root &&
message.is_none() && label.is_none()
message.is_none() && label.is_none() && note.is_none()
{
if let Some(items) = item.meta_item_list() {
if let Ok(subcommand) =
@ -128,7 +137,7 @@ impl<'a, 'gcx, 'tcx> OnUnimplementedDirective {
if errored {
Err(ErrorReported)
} else {
Ok(OnUnimplementedDirective { condition, message, label, subcommands })
Ok(OnUnimplementedDirective { condition, message, label, subcommands, note })
}
}
@ -154,7 +163,8 @@ impl<'a, 'gcx, 'tcx> OnUnimplementedDirective {
message: None,
subcommands: vec![],
label: Some(OnUnimplementedFormatString::try_parse(
tcx, trait_def_id, value.as_str(), attr.span)?)
tcx, trait_def_id, value.as_str(), attr.span)?),
note: None,
}))
} else {
return Err(parse_error(tcx, attr.span,
@ -169,20 +179,21 @@ impl<'a, 'gcx, 'tcx> OnUnimplementedDirective {
pub fn evaluate(&self,
tcx: TyCtxt<'a, 'gcx, 'tcx>,
trait_ref: ty::TraitRef<'tcx>,
options: &[(&str, Option<&str>)])
options: &[(String, Option<String>)])
-> OnUnimplementedNote
{
let mut message = None;
let mut label = None;
let mut note = None;
info!("evaluate({:?}, trait_ref={:?}, options={:?})",
self, trait_ref, options);
for command in self.subcommands.iter().chain(Some(self)).rev() {
if let Some(ref condition) = command.condition {
if !attr::eval_condition(condition, &tcx.sess.parse_sess, &mut |c| {
options.contains(&(&c.name().as_str(),
match c.value_str().map(|s| s.as_str()) {
Some(ref s) => Some(s),
options.contains(&(c.name().as_str().to_string(),
match c.value_str().map(|s| s.as_str().to_string()) {
Some(s) => Some(s),
None => None
}))
}) {
@ -198,11 +209,16 @@ impl<'a, 'gcx, 'tcx> OnUnimplementedDirective {
if let Some(ref label_) = command.label {
label = Some(label_.clone());
}
if let Some(ref note_) = command.note {
note = Some(note_.clone());
}
}
OnUnimplementedNote {
label: label.map(|l| l.format(tcx, trait_ref)),
message: message.map(|m| m.format(tcx, trait_ref))
message: message.map(|m| m.format(tcx, trait_ref)),
note: note.map(|n| n.format(tcx, trait_ref)),
}
}
}

View File

@ -235,7 +235,7 @@ impl<'a> Parser<'a> {
}
let lo = self.span;
let ident = self.parse_ident()?;
let ident = self.parse_ident_attr()?;
let node = self.parse_meta_item_kind()?;
Ok(ast::MetaItem { name: ident.name, node: node, span: lo.to(self.prev_span) })
}

View File

@ -762,13 +762,19 @@ impl<'a> Parser<'a> {
}
pub fn parse_ident(&mut self) -> PResult<'a, ast::Ident> {
self.parse_ident_common(true)
self.parse_ident_common(true, false)
}
fn parse_ident_common(&mut self, recover: bool) -> PResult<'a, ast::Ident> {
pub fn parse_ident_attr(&mut self) -> PResult<'a, ast::Ident> {
self.parse_ident_common(true, true)
}
fn parse_ident_common(&mut self, recover: bool, accept_self: bool) -> PResult<'a, ast::Ident> {
match self.token {
token::Ident(i) => {
if self.token.is_reserved_ident() {
if self.token.is_reserved_ident()
&& !(accept_self && i.name == keywords::SelfType.name())
{
let mut err = self.struct_span_err(self.span,
&format!("expected identifier, found {}",
self.this_token_descr()));
@ -2111,7 +2117,7 @@ impl<'a> Parser<'a> {
self.bump();
Ok(Ident::with_empty_ctxt(name))
} else {
self.parse_ident_common(false)
self.parse_ident_common(false, false)
}
}
@ -2128,7 +2134,7 @@ impl<'a> Parser<'a> {
hi = self.prev_span;
(fieldname, self.parse_expr()?, false)
} else {
let fieldname = self.parse_ident_common(false)?;
let fieldname = self.parse_ident_common(false, false)?;
hi = self.prev_span;
// Mimic `x: x` for the `x` field shorthand.

View File

@ -6,11 +6,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'r, 's> fn(&'r (), &'s ()) -> _`
|
note: required by `f1`
--> $DIR/anonymous-higher-ranked-lifetime.rs:26:1
|
26 | fn f1<F>(_: F) where F: Fn(&(), &()) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `f1`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:13:5
@ -20,11 +16,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'a, 'r> fn(&'a (), &'r ()) -> _`
|
note: required by `f2`
--> $DIR/anonymous-higher-ranked-lifetime.rs:27:1
|
27 | fn f2<F>(_: F) where F: for<'a> Fn(&'a (), &()) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `f2`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:14:5
@ -34,11 +26,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'r> fn(&(), &'r ()) -> _`
|
note: required by `f3`
--> $DIR/anonymous-higher-ranked-lifetime.rs:28:1
|
28 | fn f3<'a, F>(_: F) where F: Fn(&'a (), &()) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `f3`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:15:5
@ -48,11 +36,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'s, 'r> fn(&'s (), &'r ()) -> _`
|
note: required by `f4`
--> $DIR/anonymous-higher-ranked-lifetime.rs:29:1
|
29 | fn f4<F>(_: F) where F: for<'r> Fn(&(), &'r ()) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `f4`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:16:5
@ -62,11 +46,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'r> fn(&'r (), &'r ()) -> _`
|
note: required by `f5`
--> $DIR/anonymous-higher-ranked-lifetime.rs:30:1
|
30 | fn f5<F>(_: F) where F: for<'r> Fn(&'r (), &'r ()) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `f5`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:17:5
@ -76,11 +56,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'r> fn(&'r (), std::boxed::Box<for<'s> std::ops::Fn(&'s ()) + 'static>) -> _`
|
note: required by `g1`
--> $DIR/anonymous-higher-ranked-lifetime.rs:33:1
|
33 | fn g1<F>(_: F) where F: Fn(&(), Box<Fn(&())>) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `g1`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:18:5
@ -90,11 +66,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'r> fn(&'r (), for<'s> fn(&'s ())) -> _`
|
note: required by `g2`
--> $DIR/anonymous-higher-ranked-lifetime.rs:34:1
|
34 | fn g2<F>(_: F) where F: Fn(&(), fn(&())) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `g2`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:19:5
@ -104,11 +76,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'s> fn(&'s (), std::boxed::Box<for<'r> std::ops::Fn(&'r ()) + 'static>) -> _`
|
note: required by `g3`
--> $DIR/anonymous-higher-ranked-lifetime.rs:35:1
|
35 | fn g3<F>(_: F) where F: for<'s> Fn(&'s (), Box<Fn(&())>) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `g3`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:20:5
@ -118,11 +86,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'s> fn(&'s (), for<'r> fn(&'r ())) -> _`
|
note: required by `g4`
--> $DIR/anonymous-higher-ranked-lifetime.rs:36:1
|
36 | fn g4<F>(_: F) where F: Fn(&(), for<'r> fn(&'r ())) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `g4`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:21:5
@ -132,11 +96,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'r, 's> fn(&'r (), std::boxed::Box<for<'t0> std::ops::Fn(&'t0 ()) + 'static>, &'s (), for<'t0, 't1> fn(&'t0 (), &'t1 ())) -> _`
|
note: required by `h1`
--> $DIR/anonymous-higher-ranked-lifetime.rs:39:1
|
39 | fn h1<F>(_: F) where F: Fn(&(), Box<Fn(&())>, &(), fn(&(), &())) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `h1`
error[E0631]: type mismatch in closure arguments
--> $DIR/anonymous-higher-ranked-lifetime.rs:22:5
@ -146,11 +106,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `for<'r, 't0> fn(&'r (), std::boxed::Box<for<'s> std::ops::Fn(&'s ()) + 'static>, &'t0 (), for<'s, 't1> fn(&'s (), &'t1 ())) -> _`
|
note: required by `h2`
--> $DIR/anonymous-higher-ranked-lifetime.rs:40:1
|
40 | fn h2<F>(_: F) where F: for<'t0> Fn(&(), Box<Fn(&())>, &'t0 (), fn(&(), &())) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `h2`
error: aborting due to 11 previous errors

View File

@ -10,11 +10,7 @@ error[E0277]: the trait bound `i8: Foo<i32>` is not satisfied
<i8 as Foo<u32>>
<i8 as Foo<u64>>
<i8 as Foo<bool>>
note: required by `Foo::bar`
--> $DIR/issue-39802-show-5-trait-impls.rs:12:5
|
12 | fn bar(&self){}
| ^^^^^^^^^^^^^
= note: required by `Foo::bar`
error[E0277]: the trait bound `u8: Foo<i32>` is not satisfied
--> $DIR/issue-39802-show-5-trait-impls.rs:35:5
@ -27,11 +23,7 @@ error[E0277]: the trait bound `u8: Foo<i32>` is not satisfied
<u8 as Foo<u32>>
<u8 as Foo<u64>>
<u8 as Foo<bool>>
note: required by `Foo::bar`
--> $DIR/issue-39802-show-5-trait-impls.rs:12:5
|
12 | fn bar(&self){}
| ^^^^^^^^^^^^^
= note: required by `Foo::bar`
error[E0277]: the trait bound `bool: Foo<i32>` is not satisfied
--> $DIR/issue-39802-show-5-trait-impls.rs:36:5
@ -45,11 +37,7 @@ error[E0277]: the trait bound `bool: Foo<i32>` is not satisfied
<bool as Foo<u32>>
<bool as Foo<u64>>
and 2 others
note: required by `Foo::bar`
--> $DIR/issue-39802-show-5-trait-impls.rs:12:5
|
12 | fn bar(&self){}
| ^^^^^^^^^^^^^
= note: required by `Foo::bar`
error: aborting due to 3 previous errors

View File

@ -15,11 +15,7 @@ error[E0275]: overflow evaluating the requirement `K: std::marker::Send`
= note: required because it appears within the type `C`
= note: required because it appears within the type `B`
= note: required because it appears within the type `A`
note: required by `is_send`
--> $DIR/recursion_limit.rs:41:1
|
41 | fn is_send<T:Send>() { }
| ^^^^^^^^^^^^^^^^^^^^
= note: required by `is_send`
error: aborting due to previous error

View File

@ -1,4 +1,4 @@
error[E0658]: unadjusted ABI is an implementation detail and perma-unstable
error: unadjusted ABI is an implementation detail and perma-unstable
--> $DIR/feature-gate-abi_unadjusted.rs:11:1
|
11 | / extern "unadjusted" fn foo() {

View File

@ -1,4 +1,4 @@
error[E0658]: `catch` expression is experimental (see issue #31436)
error: `catch` expression is experimental (see issue #31436)
--> $DIR/feature-gate-catch_expr.rs:12:24
|
12 | let catch_result = do catch { //~ ERROR `catch` expression is experimental

View File

@ -1,4 +1,4 @@
error[E0658]: 128-bit type is unstable (see issue #35118)
error: 128-bit type is unstable (see issue #35118)
--> $DIR/feature-gate-i128_type2.rs:13:15
|
13 | fn test1() -> i128 { //~ ERROR 128-bit type is unstable
@ -6,7 +6,7 @@ error[E0658]: 128-bit type is unstable (see issue #35118)
|
= help: add #![feature(i128_type)] to the crate attributes to enable
error[E0658]: 128-bit type is unstable (see issue #35118)
error: 128-bit type is unstable (see issue #35118)
--> $DIR/feature-gate-i128_type2.rs:17:17
|
17 | fn test1_2() -> u128 { //~ ERROR 128-bit type is unstable
@ -14,7 +14,7 @@ error[E0658]: 128-bit type is unstable (see issue #35118)
|
= help: add #![feature(i128_type)] to the crate attributes to enable
error[E0658]: 128-bit type is unstable (see issue #35118)
error: 128-bit type is unstable (see issue #35118)
--> $DIR/feature-gate-i128_type2.rs:22:12
|
22 | let x: i128 = 0; //~ ERROR 128-bit type is unstable
@ -22,7 +22,7 @@ error[E0658]: 128-bit type is unstable (see issue #35118)
|
= help: add #![feature(i128_type)] to the crate attributes to enable
error[E0658]: 128-bit type is unstable (see issue #35118)
error: 128-bit type is unstable (see issue #35118)
--> $DIR/feature-gate-i128_type2.rs:26:12
|
26 | let x: u128 = 0; //~ ERROR 128-bit type is unstable
@ -32,7 +32,7 @@ error[E0658]: 128-bit type is unstable (see issue #35118)
error[E0601]: main function not found
error[E0658]: repr with 128-bit type is unstable (see issue #35118)
error: repr with 128-bit type is unstable (see issue #35118)
--> $DIR/feature-gate-i128_type2.rs:30:1
|
30 | / enum A { //~ ERROR 128-bit type is unstable

View File

@ -1,4 +1,4 @@
error[E0658]: intrinsics are subject to change
error: intrinsics are subject to change
--> $DIR/feature-gate-intrinsics.rs:11:1
|
11 | / extern "rust-intrinsic" { //~ ERROR intrinsics are subject to change
@ -8,7 +8,7 @@ error[E0658]: intrinsics are subject to change
|
= help: add #![feature(intrinsics)] to the crate attributes to enable
error[E0658]: intrinsics are subject to change
error: intrinsics are subject to change
--> $DIR/feature-gate-intrinsics.rs:15:1
|
15 | / extern "rust-intrinsic" fn baz() { //~ ERROR intrinsics are subject to change

View File

@ -1,4 +1,4 @@
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:11:1
|
11 | extern crate core as bäz; //~ ERROR non-ascii idents
@ -6,7 +6,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:13:5
|
13 | use föö::bar; //~ ERROR non-ascii idents
@ -14,7 +14,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:15:1
|
15 | mod föö { //~ ERROR non-ascii idents
@ -22,7 +22,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:19:1
|
19 | / fn bär( //~ ERROR non-ascii idents
@ -36,7 +36,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:20:5
|
20 | bäz: isize //~ ERROR non-ascii idents
@ -44,7 +44,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:22:9
|
22 | let _ö: isize; //~ ERROR non-ascii idents
@ -52,7 +52,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:25:10
|
25 | (_ä, _) => {} //~ ERROR non-ascii idents
@ -60,7 +60,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:29:1
|
29 | struct Föö { //~ ERROR non-ascii idents
@ -68,7 +68,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:30:5
|
30 | föö: isize //~ ERROR non-ascii idents
@ -76,7 +76,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:33:1
|
33 | enum Bär { //~ ERROR non-ascii idents
@ -84,7 +84,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:34:5
|
34 | Bäz { //~ ERROR non-ascii idents
@ -92,7 +92,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:35:9
|
35 | qüx: isize //~ ERROR non-ascii idents
@ -100,7 +100,7 @@ error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
|
= help: add #![feature(non_ascii_idents)] to the crate attributes to enable
error[E0658]: non-ascii idents are not fully supported. (see issue #28979)
error: non-ascii idents are not fully supported. (see issue #28979)
--> $DIR/feature-gate-non_ascii_idents.rs:40:5
|
40 | fn qüx(); //~ ERROR non-ascii idents

View File

@ -1,4 +1,4 @@
error[E0658]: repr with 128-bit type is unstable (see issue #35118)
error: repr with 128-bit type is unstable (see issue #35118)
--> $DIR/feature-gate-repr128.rs:12:1
|
12 | / enum A { //~ ERROR repr with 128-bit type is unstable

View File

@ -1,4 +1,4 @@
error[E0658]: rust-call ABI is subject to change (see issue #29625)
error: rust-call ABI is subject to change (see issue #29625)
--> $DIR/feature-gate-unboxed-closures.rs:16:5
|
16 | / extern "rust-call" fn call_once(self, (a, b): (u32, u32)) -> u32 {

View File

@ -1,4 +1,4 @@
error[E0658]: unions with non-`Copy` fields are unstable (see issue #32836)
error: unions with non-`Copy` fields are unstable (see issue #32836)
--> $DIR/feature-gate-untagged_unions.rs:19:1
|
19 | / union U3 { //~ ERROR unions with non-`Copy` fields are unstable
@ -8,7 +8,7 @@ error[E0658]: unions with non-`Copy` fields are unstable (see issue #32836)
|
= help: add #![feature(untagged_unions)] to the crate attributes to enable
error[E0658]: unions with non-`Copy` fields are unstable (see issue #32836)
error: unions with non-`Copy` fields are unstable (see issue #32836)
--> $DIR/feature-gate-untagged_unions.rs:23:1
|
23 | / union U4<T> { //~ ERROR unions with non-`Copy` fields are unstable
@ -18,7 +18,7 @@ error[E0658]: unions with non-`Copy` fields are unstable (see issue #32836)
|
= help: add #![feature(untagged_unions)] to the crate attributes to enable
error[E0658]: unions with `Drop` implementations are unstable (see issue #32836)
error: unions with `Drop` implementations are unstable (see issue #32836)
--> $DIR/feature-gate-untagged_unions.rs:27:1
|
27 | / union U5 { //~ ERROR unions with `Drop` implementations are unstable

View File

@ -12,11 +12,7 @@ error[E0277]: the trait bound `*mut std::ops::Fn() + 'static: std::marker::Sync`
= note: required because it appears within the type `[std::fmt::ArgumentV1<'_>]`
= note: required because of the requirements on the impl of `std::marker::Send` for `&[std::fmt::ArgumentV1<'_>]`
= note: required because it appears within the type `std::fmt::Arguments<'_>`
note: required by `send`
--> $DIR/send-sync.rs:11:1
|
11 | fn send<T: Send>(_: T) {}
| ^^^^^^^^^^^^^^^^^^^^^^
= note: required by `send`
error[E0277]: the trait bound `*mut std::ops::Fn() + 'static: std::marker::Sync` is not satisfied in `std::fmt::Arguments<'_>`
--> $DIR/send-sync.rs:19:5
@ -32,11 +28,7 @@ error[E0277]: the trait bound `*mut std::ops::Fn() + 'static: std::marker::Sync`
= note: required because it appears within the type `[std::fmt::ArgumentV1<'_>]`
= note: required because it appears within the type `&[std::fmt::ArgumentV1<'_>]`
= note: required because it appears within the type `std::fmt::Arguments<'_>`
note: required by `sync`
--> $DIR/send-sync.rs:12:1
|
12 | fn sync<T: Sync>(_: T) {}
| ^^^^^^^^^^^^^^^^^^^^^^
= note: required by `sync`
error: aborting due to 2 previous errors

View File

@ -7,11 +7,7 @@ error[E0277]: the trait bound `std::cell::Cell<i32>: std::marker::Sync` is not s
= help: the trait `std::marker::Sync` is not implemented for `std::cell::Cell<i32>`
= note: required because of the requirements on the impl of `std::marker::Send` for `&std::cell::Cell<i32>`
= note: required because it appears within the type `[generator@$DIR/not-send-sync.rs:26:17: 30:6 a:&std::cell::Cell<i32> _]`
note: required by `main::assert_send`
--> $DIR/not-send-sync.rs:17:5
|
17 | fn assert_send<T: Send>(_: T) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `main::assert_send`
error[E0277]: the trait bound `std::cell::Cell<i32>: std::marker::Sync` is not satisfied in `[generator@$DIR/not-send-sync.rs:19:17: 23:6 {std::cell::Cell<i32>, ()}]`
--> $DIR/not-send-sync.rs:19:5

View File

@ -7,11 +7,7 @@ error[E0277]: the trait bound `std::rc::Rc<std::cell::Cell<i32>>: std::marker::S
= help: within `impl std::ops::Fn<(i32,)>`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::Cell<i32>>`
= note: required because it appears within the type `[closure@$DIR/auto-trait-leak.rs:21:5: 21:22 p:std::rc::Rc<std::cell::Cell<i32>>]`
= note: required because it appears within the type `impl std::ops::Fn<(i32,)>`
note: required by `send`
--> $DIR/auto-trait-leak.rs:24:1
|
24 | fn send<T: Send>(_: T) {}
| ^^^^^^^^^^^^^^^^^^^^^^
= note: required by `send`
error[E0277]: the trait bound `std::rc::Rc<std::cell::Cell<i32>>: std::marker::Send` is not satisfied in `impl std::ops::Fn<(i32,)>`
--> $DIR/auto-trait-leak.rs:30:5
@ -22,11 +18,7 @@ error[E0277]: the trait bound `std::rc::Rc<std::cell::Cell<i32>>: std::marker::S
= help: within `impl std::ops::Fn<(i32,)>`, the trait `std::marker::Send` is not implemented for `std::rc::Rc<std::cell::Cell<i32>>`
= note: required because it appears within the type `[closure@$DIR/auto-trait-leak.rs:38:5: 38:22 p:std::rc::Rc<std::cell::Cell<i32>>]`
= note: required because it appears within the type `impl std::ops::Fn<(i32,)>`
note: required by `send`
--> $DIR/auto-trait-leak.rs:24:1
|
24 | fn send<T: Send>(_: T) {}
| ^^^^^^^^^^^^^^^^^^^^^^
= note: required by `send`
error[E0391]: unsupported cyclic reference between types/traits detected
--> $DIR/auto-trait-leak.rs:44:1

View File

@ -7,7 +7,7 @@ error[E0308]: mismatched types
= note: expected type `i32`
found type `u32`
error[E0277]: the trait bound `u32: std::ops::Add<impl Foo>` is not satisfied
error[E0277]: cannot add `impl Foo` to `u32`
--> $DIR/equality.rs:34:11
|
34 | n + sum_to(n - 1)

View File

@ -4,11 +4,7 @@ error[E0283]: type annotations required: cannot resolve `T0: Trait0<'l0>`
14 | impl <'l0, 'l1, T0> Trait1<'l0, T0> for bool where T0 : Trait0<'l0>, T0 : Trait0<'l1> {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
note: required by `Trait0`
--> $DIR/issue-24424.rs:12:1
|
12 | trait Trait0<'l0> {}
| ^^^^^^^^^^^^^^^^^
= note: required by `Trait0`
error: aborting due to previous error

View File

@ -1,7 +1,7 @@
warning: unnecessary parentheses around assigned value
--> $DIR/suggestions.rs:46:21
--> $DIR/suggestions.rs:36:21
|
46 | let mut a = (1); // should suggest no `mut`, no parens
36 | let mut a = (1); // should suggest no `mut`, no parens
| ^^^ help: remove these parentheses
|
note: lint level defined here
@ -11,17 +11,17 @@ note: lint level defined here
| ^^^^^^^^^^^^^
warning: use of deprecated attribute `no_debug`: the `#[no_debug]` attribute was an experimental feature that has been deprecated due to lack of demand. See https://github.com/rust-lang/rust/issues/29721
--> $DIR/suggestions.rs:41:1
--> $DIR/suggestions.rs:31:1
|
41 | #[no_debug] // should suggest removal of deprecated attribute
31 | #[no_debug] // should suggest removal of deprecated attribute
| ^^^^^^^^^^^ help: remove this attribute
|
= note: #[warn(deprecated)] on by default
warning: variable does not need to be mutable
--> $DIR/suggestions.rs:46:13
--> $DIR/suggestions.rs:36:13
|
46 | let mut a = (1); // should suggest no `mut`, no parens
36 | let mut a = (1); // should suggest no `mut`, no parens
| ---^^
| |
| help: remove this `mut`
@ -72,30 +72,18 @@ warning: function is marked #[no_mangle], but not exported
|
= note: #[warn(private_no_mangle_fns)] on by default
warning: static is marked #[no_mangle], but not exported
--> $DIR/suggestions.rs:31:18
|
31 | #[no_mangle] pub static DAUNTLESS: bool = true;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
warning: function is marked #[no_mangle], but not exported
--> $DIR/suggestions.rs:33:18
|
33 | #[no_mangle] pub fn val_jean() {}
| ^^^^^^^^^^^^^^^^^^^^
warning: denote infinite loops with `loop { ... }`
--> $DIR/suggestions.rs:44:5
--> $DIR/suggestions.rs:34:5
|
44 | while true { // should suggest `loop`
34 | while true { // should suggest `loop`
| ^^^^^^^^^^ help: use `loop`
|
= note: #[warn(while_true)] on by default
warning: the `warp_factor:` in this pattern is redundant
--> $DIR/suggestions.rs:51:23
--> $DIR/suggestions.rs:41:23
|
51 | Equinox { warp_factor: warp_factor } => {} // should suggest shorthand
41 | Equinox { warp_factor: warp_factor } => {} // should suggest shorthand
| ------------^^^^^^^^^^^^
| |
| help: remove this

View File

@ -2,72 +2,7 @@
"message": "cannot find type `Iter` in this scope",
"code": {
"code": "E0412",
"explanation": "
The type name used is not in scope.
Erroneous code examples:
```compile_fail,E0412
impl Something {} // error: type name `Something` is not in scope
// or:
trait Foo {
fn bar(N); // error: type name `N` is not in scope
}
// or:
fn foo(x: T) {} // type name `T` is not in scope
```
To fix this error, please verify you didn't misspell the type name, you did
declare it or imported it into the scope. Examples:
```
struct Something;
impl Something {} // ok!
// or:
trait Foo {
type N;
fn bar(_: Self::N); // ok!
}
// or:
fn foo<T>(x: T) {} // ok!
```
Another case that causes this error is when a type is imported into a parent
module. To fix this, you can follow the suggestion and use File directly or
`use super::File;` which will import the types from the parent namespace. An
example that causes this error is below:
```compile_fail,E0412
use std::fs::File;
mod foo {
fn some_function(f: File) {}
}
```
```
use std::fs::File;
mod foo {
// either
use super::File;
// or
// use std::fs::File;
fn foo(f: File) {}
}
# fn main() {} // don't insert it for us; that'll break imports
```
"
"explanation": null
},
"level": "error",
"spans": [

View File

@ -1,8 +1,12 @@
error: multiple unused formatting arguments
--> $DIR/format-foreign.rs:12:30
--> $DIR/format-foreign.rs:12:5
|
12 | println!("%.*3$s %s!/n", "Hello,", "World", 4); //~ ERROR multiple unused formatting arguments
| -------------------------^^^^^^^^--^^^^^^^--^-- multiple unused arguments in this statement
12 | println!("%.*3$s %s!/n", "Hello,", "World", 4);
| ^^^^^^^^^^^^^^^^^^^^^^^^^--------^^-------^^-^^
| | | |
| | | unused
| | unused
| unused
|
= help: `%.*3$s` should be written as `{:.2$}`
= help: `%s` should be written as `{}`

View File

@ -1,43 +1,49 @@
error: multiple unused formatting arguments
--> $DIR/format-unused-lables.rs:12:22
--> $DIR/format-unused-lables.rs:12:5
|
12 | println!("Test", 123, 456, 789);
| -----------------^^^--^^^--^^^-- multiple unused arguments in this statement
| ^^^^^^^^^^^^^^^^^---^^---^^---^^
| | | |
| | | unused
| | unused
| unused
|
= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
error: multiple unused formatting arguments
--> $DIR/format-unused-lables.rs:16:9
--> $DIR/format-unused-lables.rs:14:5
|
15 | / println!("Test2",
16 | | 123, //~ ERROR multiple unused formatting arguments
| | ^^^
17 | | 456,
| | ^^^
18 | | 789
| | ^^^
19 | | );
| |______- multiple unused arguments in this statement
14 | / println!("Test2",
15 | | 123,
| | --- unused
16 | | 456,
| | --- unused
17 | | 789
| | --- unused
18 | | );
| |______^
|
= note: this error originates in a macro outside of the current crate (in Nightly builds, run with -Z external-macro-backtrace for more info)
error: named argument never used
--> $DIR/format-unused-lables.rs:21:35
--> $DIR/format-unused-lables.rs:20:35
|
21 | println!("Some stuff", UNUSED="args"); //~ ERROR named argument never used
20 | println!("Some stuff", UNUSED="args"); //~ ERROR named argument never used
| ^^^^^^
error: multiple unused formatting arguments
--> $DIR/format-unused-lables.rs:24:9
--> $DIR/format-unused-lables.rs:22:5
|
23 | / println!("Some more $STUFF",
24 | | "woo!", //~ ERROR multiple unused formatting arguments
| | ^^^^^^
25 | | STUFF=
26 | | "things"
| | ^^^^^^^^
27 | | , UNUSED="args");
| |_______________________^^^^^^_- multiple unused arguments in this statement
22 | / println!("Some more $STUFF",
23 | | "woo!",
| | ------ unused
24 | | STUFF=
25 | | "things"
| | -------- unused
26 | | , UNUSED="args");
| |_______________________------_^
| |
| unused
|
= help: `$STUFF` should be written as `{STUFF}`
= note: shell formatting not supported; see the documentation for `std::fmt`

View File

@ -6,11 +6,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `fn(usize) -> _`
|
note: required by `foo`
--> $DIR/E0631.rs:13:1
|
13 | fn foo<F: Fn(usize)>(_: F) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `foo`
error[E0631]: type mismatch in closure arguments
--> $DIR/E0631.rs:18:5
@ -20,11 +16,7 @@ error[E0631]: type mismatch in closure arguments
| |
| expected signature of `fn(usize) -> _`
|
note: required by `bar`
--> $DIR/E0631.rs:14:1
|
14 | fn bar<F: Fn<usize>>(_: F) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `bar`
error[E0631]: type mismatch in function arguments
--> $DIR/E0631.rs:19:5
@ -35,11 +27,7 @@ error[E0631]: type mismatch in function arguments
19 | foo(f); //~ ERROR type mismatch
| ^^^ expected signature of `fn(usize) -> _`
|
note: required by `foo`
--> $DIR/E0631.rs:13:1
|
13 | fn foo<F: Fn(usize)>(_: F) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `foo`
error[E0631]: type mismatch in function arguments
--> $DIR/E0631.rs:20:5
@ -50,11 +38,7 @@ error[E0631]: type mismatch in function arguments
20 | bar(f); //~ ERROR type mismatch
| ^^^ expected signature of `fn(usize) -> _`
|
note: required by `bar`
--> $DIR/E0631.rs:14:1
|
14 | fn bar<F: Fn<usize>>(_: F) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `bar`
error: aborting due to 4 previous errors

View File

@ -1,4 +1,4 @@
error[E0277]: the trait bound `{integer}: std::ops::Add<std::option::Option<{integer}>>` is not satisfied
error[E0277]: cannot add `std::option::Option<{integer}>` to `{integer}`
--> $DIR/binops.rs:12:7
|
12 | 1 + Some(1); //~ ERROR is not satisfied
@ -6,7 +6,7 @@ error[E0277]: the trait bound `{integer}: std::ops::Add<std::option::Option<{int
|
= help: the trait `std::ops::Add<std::option::Option<{integer}>>` is not implemented for `{integer}`
error[E0277]: the trait bound `usize: std::ops::Sub<std::option::Option<{integer}>>` is not satisfied
error[E0277]: cannot substract `std::option::Option<{integer}>` from `usize`
--> $DIR/binops.rs:13:16
|
13 | 2 as usize - Some(1); //~ ERROR is not satisfied
@ -14,7 +14,7 @@ error[E0277]: the trait bound `usize: std::ops::Sub<std::option::Option<{integer
|
= help: the trait `std::ops::Sub<std::option::Option<{integer}>>` is not implemented for `usize`
error[E0277]: the trait bound `{integer}: std::ops::Mul<()>` is not satisfied
error[E0277]: cannot multiply `()` to `{integer}`
--> $DIR/binops.rs:14:7
|
14 | 3 * (); //~ ERROR is not satisfied
@ -22,7 +22,7 @@ error[E0277]: the trait bound `{integer}: std::ops::Mul<()>` is not satisfied
|
= help: the trait `std::ops::Mul<()>` is not implemented for `{integer}`
error[E0277]: the trait bound `{integer}: std::ops::Div<&str>` is not satisfied
error[E0277]: cannot divide `{integer}` by `&str`
--> $DIR/binops.rs:15:7
|
15 | 4 / ""; //~ ERROR is not satisfied

View File

@ -46,11 +46,7 @@ error[E0593]: closure is expected to take 1 argument, but it takes 0 arguments
| |
| expected closure that takes 1 argument
|
note: required by `f`
--> $DIR/closure-arg-count.rs:13:1
|
13 | fn f<F: Fn<usize>>(_: F) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `f`
error[E0593]: closure is expected to take a single 2-tuple as argument, but it takes 2 distinct arguments
--> $DIR/closure-arg-count.rs:26:53

View File

@ -31,11 +31,7 @@ error[E0631]: type mismatch in function arguments
| expected signature of `for<'r> fn(*mut &'r u32) -> _`
| found signature of `fn(*mut &'a u32) -> _`
|
note: required by `baz`
--> $DIR/closure-arg-type-mismatch.rs:18:1
|
18 | fn baz<F: Fn(*mut &u32)>(_: F) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `baz`
error[E0271]: type mismatch resolving `for<'r> <fn(*mut &'a u32) as std::ops::FnOnce<(*mut &'r u32,)>>::Output == ()`
--> $DIR/closure-arg-type-mismatch.rs:20:5
@ -43,11 +39,7 @@ error[E0271]: type mismatch resolving `for<'r> <fn(*mut &'a u32) as std::ops::Fn
20 | baz(f); //~ ERROR type mismatch
| ^^^ expected bound lifetime parameter, found concrete lifetime
|
note: required by `baz`
--> $DIR/closure-arg-type-mismatch.rs:18:1
|
18 | fn baz<F: Fn(*mut &u32)>(_: F) {}
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `baz`
error: aborting due to 5 previous errors

View File

@ -5,11 +5,7 @@ error[E0271]: type mismatch resolving `for<'r> <[closure@$DIR/closure-mismatch.r
| ^^^ expected bound lifetime parameter, found concrete lifetime
|
= note: required because of the requirements on the impl of `Foo` for `[closure@$DIR/closure-mismatch.rs:18:9: 18:15]`
note: required by `baz`
--> $DIR/closure-mismatch.rs:15:1
|
15 | fn baz<T: Foo>(_: T) {}
| ^^^^^^^^^^^^^^^^^^^^
= note: required by `baz`
error[E0631]: type mismatch in closure arguments
--> $DIR/closure-mismatch.rs:18:5
@ -20,11 +16,7 @@ error[E0631]: type mismatch in closure arguments
| expected signature of `for<'r> fn(&'r ()) -> _`
|
= note: required because of the requirements on the impl of `Foo` for `[closure@$DIR/closure-mismatch.rs:18:9: 18:15]`
note: required by `baz`
--> $DIR/closure-mismatch.rs:15:1
|
15 | fn baz<T: Foo>(_: T) {}
| ^^^^^^^^^^^^^^^^^^^^
= note: required by `baz`
error: aborting due to 2 previous errors

View File

@ -7,11 +7,7 @@ error[E0631]: type mismatch in function arguments
21 | apply(&3, takes_mut);
| ^^^^^ expected signature of `fn(&{integer}) -> _`
|
note: required by `apply`
--> $DIR/fn-variance-1.rs:15:1
|
15 | fn apply<T, F>(t: T, f: F) where F: FnOnce(T) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `apply`
error[E0631]: type mismatch in function arguments
--> $DIR/fn-variance-1.rs:25:5
@ -22,11 +18,7 @@ error[E0631]: type mismatch in function arguments
25 | apply(&mut 3, takes_imm);
| ^^^^^ expected signature of `fn(&mut {integer}) -> _`
|
note: required by `apply`
--> $DIR/fn-variance-1.rs:15:1
|
15 | fn apply<T, F>(t: T, f: F) where F: FnOnce(T) {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `apply`
error: aborting due to 2 previous errors

View File

@ -1,17 +1,12 @@
error[E0631]: type mismatch in closure arguments
--> $DIR/unboxed-closures-vtable-mismatch.rs:25:13
--> $DIR/unboxed-closures-vtable-mismatch.rs:23:13
|
23 | let f = to_fn_mut(|x: usize, y: isize| -> isize { (x as isize) + y });
22 | let f = to_fn_mut(|x: usize, y: isize| -> isize { (x as isize) + y });
| ----------------------------- found signature of `fn(usize, isize) -> _`
24 | //~^ NOTE found signature of `fn(usize, isize) -> _`
25 | let z = call_it(3, f);
23 | let z = call_it(3, f);
| ^^^^^^^ expected signature of `fn(isize, isize) -> _`
|
note: required by `call_it`
--> $DIR/unboxed-closures-vtable-mismatch.rs:17:1
|
17 | fn call_it<F:FnMut(isize,isize)->isize>(y: isize, mut f: F) -> isize {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `call_it`
error: aborting due to previous error

View File

@ -5,11 +5,7 @@ error[E0277]: the trait bound `[i32]: Index<u32>` is not satisfied
| ^^^^^^^^^^^^ trait message
|
= help: the trait `Index<u32>` is not implemented for `[i32]`
note: required by `Index::index`
--> $DIR/multiple-impls.rs:22:5
|
22 | fn index(&self, index: Idx) -> &Self::Output;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `Index::index`
error[E0277]: the trait bound `[i32]: Index<u32>` is not satisfied
--> $DIR/multiple-impls.rs:43:5
@ -26,11 +22,7 @@ error[E0277]: the trait bound `[i32]: Index<Foo<u32>>` is not satisfied
| ^^^^^^^^^^^^ on impl for Foo
|
= help: the trait `Index<Foo<u32>>` is not implemented for `[i32]`
note: required by `Index::index`
--> $DIR/multiple-impls.rs:22:5
|
22 | fn index(&self, index: Idx) -> &Self::Output;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `Index::index`
error[E0277]: the trait bound `[i32]: Index<Foo<u32>>` is not satisfied
--> $DIR/multiple-impls.rs:46:5
@ -47,11 +39,7 @@ error[E0277]: the trait bound `[i32]: Index<Bar<u32>>` is not satisfied
| ^^^^^^^^^^^^ on impl for Bar
|
= help: the trait `Index<Bar<u32>>` is not implemented for `[i32]`
note: required by `Index::index`
--> $DIR/multiple-impls.rs:22:5
|
22 | fn index(&self, index: Idx) -> &Self::Output;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `Index::index`
error[E0277]: the trait bound `[i32]: Index<Bar<u32>>` is not satisfied
--> $DIR/multiple-impls.rs:49:5

View File

@ -5,11 +5,7 @@ error[E0277]: the trait bound `[i32]: Index<u32>` is not satisfied
| ^^^^^^^^^^^^^^^^^^^ a usize is required to index into a slice
|
= help: the trait `Index<u32>` is not implemented for `[i32]`
note: required by `Index::index`
--> $DIR/on-impl.rs:19:5
|
19 | fn index(&self, index: Idx) -> &Self::Output;
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `Index::index`
error[E0277]: the trait bound `[i32]: Index<u32>` is not satisfied
--> $DIR/on-impl.rs:32:5

View File

@ -5,11 +5,7 @@ error[E0277]: the trait bound `std::option::Option<std::vec::Vec<u8>>: MyFromIte
| ^^^^^^^ a collection of type `std::option::Option<std::vec::Vec<u8>>` cannot be built from an iterator over elements of type `&u8`
|
= help: the trait `MyFromIterator<&u8>` is not implemented for `std::option::Option<std::vec::Vec<u8>>`
note: required by `collect`
--> $DIR/on-trait.rs:31:1
|
31 | fn collect<A, I: Iterator<Item=A>, B: MyFromIterator<A>>(it: I) -> B {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `collect`
error[E0277]: the trait bound `std::string::String: Bar::Foo<u8, _, u32>` is not satisfied
--> $DIR/on-trait.rs:40:21
@ -18,11 +14,7 @@ error[E0277]: the trait bound `std::string::String: Bar::Foo<u8, _, u32>` is not
| ^^^^^^ test error `std::string::String` with `u8` `_` `u32` in `Bar::Foo`
|
= help: the trait `Bar::Foo<u8, _, u32>` is not implemented for `std::string::String`
note: required by `foobar`
--> $DIR/on-trait.rs:21:1
|
21 | fn foobar<U: Clone, T: Foo<u8, U, u32>>() -> T {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `foobar`
error: aborting due to 2 previous errors

View File

@ -4,11 +4,7 @@ error[E0277]: the trait bound `u8: Tr` is not satisfied
17 | let a: u8 = Tr::C; //~ ERROR the trait bound `u8: Tr` is not satisfied
| ^^^^^ the trait `Tr` is not implemented for `u8`
|
note: required by `Tr::C`
--> $DIR/issue-29595.rs:13:5
|
13 | const C: Self;
| ^^^^^^^^^^^^^^
= note: required by `Tr::C`
error: aborting due to previous error

View File

@ -1,4 +1,4 @@
error[E0277]: the trait bound `u32: std::ops::Add<()>` is not satisfied
error[E0277]: cannot add `()` to `u32`
--> $DIR/multiline-span-simple.rs:23:18
|
23 | foo(1 as u32 + //~ ERROR not satisfied

View File

@ -22,11 +22,7 @@ error[E0277]: the trait bound `(): std::ops::Try` is not satisfied
25 | try_trait_generic::<()>(); //~ ERROR the trait bound
| ^^^^^^^^^^^^^^^^^^^^^^^ the trait `std::ops::Try` is not implemented for `()`
|
note: required by `try_trait_generic`
--> $DIR/try-operator-on-main.rs:30:1
|
30 | fn try_trait_generic<T: Try>() -> T {
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
= note: required by `try_trait_generic`
error[E0277]: the `?` operator can only be applied to values that implement `std::ops::Try`
--> $DIR/try-operator-on-main.rs:32:5

View File

@ -10,11 +10,7 @@ error[E0283]: type annotations required: cannot resolve `&'a T: Foo`
21 | | }
| |_^
|
note: required by `Foo`
--> $DIR/issue-40294.rs:11:1
|
11 | trait Foo: Sized {
| ^^^^^^^^^^^^^^^^
= note: required by `Foo`
error: aborting due to previous error