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When suggesting self.x for S { x }, use S { x: self.x }
Tweak output. Fix #115992.
This commit is contained in:
Esteban Küber
parent
af68593179
commit
81bca5f5cf
@ -4140,6 +4140,12 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
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});
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}
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fn resolve_expr_field(&mut self, f: &'ast ExprField, e: &'ast Expr) {
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self.resolve_expr(&f.expr, Some(e));
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self.visit_ident(f.ident);
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walk_list!(self, visit_attribute, f.attrs.iter());
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}
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fn resolve_expr(&mut self, expr: &'ast Expr, parent: Option<&'ast Expr>) {
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// First, record candidate traits for this expression if it could
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// result in the invocation of a method call.
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@ -4155,7 +4161,19 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
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ExprKind::Struct(ref se) => {
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self.smart_resolve_path(expr.id, &se.qself, &se.path, PathSource::Struct);
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visit::walk_expr(self, expr);
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// This is the same as `visit::walk_expr(self, expr);`, but we want to pass the
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// parent in for accurate suggestions when encountering `Foo { bar }` that should
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// have been `Foo { bar: self.bar }`.
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if let Some(qself) = &se.qself {
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self.visit_ty(&qself.ty);
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}
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self.visit_path(&se.path, expr.id);
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walk_list!(self, resolve_expr_field, &se.fields, expr);
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match &se.rest {
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StructRest::Base(expr) => self.visit_expr(expr),
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StructRest::Rest(_span) => {}
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StructRest::None => {}
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}
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}
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ExprKind::Break(Some(label), _) | ExprKind::Continue(Some(label)) => {
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@ -215,7 +215,8 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
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}
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} else {
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let mut span_label = None;
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let item_span = path.last().unwrap().ident.span;
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let item_ident = path.last().unwrap().ident;
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let item_span = item_ident.span;
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let (mod_prefix, mod_str, module, suggestion) = if path.len() == 1 {
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debug!(?self.diagnostic_metadata.current_impl_items);
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debug!(?self.diagnostic_metadata.current_function);
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@ -231,9 +232,35 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
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})
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{
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let sp = item_span.shrink_to_lo();
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// Account for `Foo { field }` when suggesting `self.field` so we result on
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// `Foo { field: self.field }`.
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let field = match source {
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PathSource::Expr(Some(Expr { kind: ExprKind::Struct(expr), .. })) => {
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expr.fields.iter().find(|f| f.ident == item_ident)
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}
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_ => None,
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};
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let pre = if let Some(field) = field && field.is_shorthand {
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format!("{item_ident}: ")
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} else {
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String::new()
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};
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// Ensure we provide a structured suggestion for an assoc fn only for
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// expressions that are actually a fn call.
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let is_call = match field {
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Some(ast::ExprField { expr, .. }) => {
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matches!(expr.kind, ExprKind::Call(..))
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}
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_ => matches!(
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source,
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PathSource::Expr(Some(Expr { kind: ExprKind::Call(..), ..})),
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),
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};
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match &item.kind {
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AssocItemKind::Fn(fn_)
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if !sig.decl.has_self() && fn_.sig.decl.has_self() => {
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if (!sig.decl.has_self() || !is_call) && fn_.sig.decl.has_self() => {
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// Ensure that we only suggest `self.` if `self` is available,
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// you can't call `fn foo(&self)` from `fn bar()` (#115992).
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// We also want to mention that the method exists.
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@ -243,20 +270,28 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
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));
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None
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}
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AssocItemKind::Fn(fn_)
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if !fn_.sig.decl.has_self() && !is_call => {
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span_label = Some((
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item.ident.span,
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"an associated function by that name is available on `Self` here",
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));
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None
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}
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AssocItemKind::Fn(fn_) if fn_.sig.decl.has_self() => Some((
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sp,
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"consider using the method on `Self`",
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"self.".to_string(),
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format!("{pre}self."),
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)),
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AssocItemKind::Fn(_) => Some((
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sp,
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"consider using the associated function on `Self`",
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"Self::".to_string(),
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format!("{pre}Self::"),
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)),
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AssocItemKind::Const(..) => Some((
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sp,
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"consider using the associated constant on `Self`",
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"Self::".to_string(),
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format!("{pre}Self::"),
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)),
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_ => None
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}
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@ -621,13 +656,26 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
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self.lookup_assoc_candidate(ident, ns, is_expected, source.is_call())
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{
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let self_is_available = self.self_value_is_available(path[0].ident.span);
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// Account for `Foo { field }` when suggesting `self.field` so we result on
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// `Foo { field: self.field }`.
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let pre = match source {
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PathSource::Expr(Some(Expr { kind: ExprKind::Struct(expr), .. }))
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if expr
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.fields
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.iter()
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.any(|f| f.ident == path[0].ident && f.is_shorthand) =>
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{
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format!("{path_str}: ")
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}
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_ => String::new(),
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};
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match candidate {
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AssocSuggestion::Field => {
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if self_is_available {
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err.span_suggestion(
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span,
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err.span_suggestion_verbose(
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span.shrink_to_lo(),
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"you might have meant to use the available field",
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format!("self.{path_str}"),
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format!("{pre}self."),
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Applicability::MachineApplicable,
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);
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} else {
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@ -640,10 +688,10 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
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} else {
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"you might have meant to refer to the method"
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};
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err.span_suggestion(
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span,
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err.span_suggestion_verbose(
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span.shrink_to_lo(),
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msg,
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format!("self.{path_str}"),
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"self.".to_string(),
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Applicability::MachineApplicable,
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);
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}
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@ -651,10 +699,10 @@ impl<'a: 'ast, 'ast, 'tcx> LateResolutionVisitor<'a, '_, 'ast, 'tcx> {
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| AssocSuggestion::AssocFn { .. }
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| AssocSuggestion::AssocConst
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| AssocSuggestion::AssocType => {
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err.span_suggestion(
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span,
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err.span_suggestion_verbose(
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span.shrink_to_lo(),
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format!("you might have meant to {}", candidate.action()),
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format!("Self::{path_str}"),
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"Self::".to_string(),
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Applicability::MachineApplicable,
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);
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}
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@ -2,13 +2,23 @@ error[E0425]: cannot find function `collect_primary` in this scope
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--> $DIR/associated-fn-called-as-fn.rs:6:30
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LL | '0'..='9' => collect_primary(&c),
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| ^^^^^^^^^^^^^^^ help: you might have meant to call the associated function: `Self::collect_primary`
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| ^^^^^^^^^^^^^^^
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help: you might have meant to call the associated function
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LL | '0'..='9' => Self::collect_primary(&c),
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| ++++++
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error[E0425]: cannot find function `collect_primary` in this scope
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--> $DIR/associated-fn-called-as-fn.rs:23:30
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LL | '0'..='9' => collect_primary(&c),
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| ^^^^^^^^^^^^^^^ help: you might have meant to call the associated function: `Self::collect_primary`
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| ^^^^^^^^^^^^^^^
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help: you might have meant to call the associated function
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LL | '0'..='9' => Self::collect_primary(&c),
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| ++++++
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error: aborting due to 2 previous errors
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@ -11,5 +11,8 @@ impl Foo {
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field; //~ ERROR cannot find value `field` in this scope
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Foo { field } //~ ERROR cannot find value `field` in this scope
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}
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fn clone(&self) -> Foo {
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Foo { field } //~ ERROR cannot find value `field` in this scope
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}
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}
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fn main() {}
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@ -16,6 +16,20 @@ LL | fn field(&self) -> u32 {
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LL | Foo { field }
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| ^^^^^ a field by this name exists in `Self`
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error: aborting due to 2 previous errors
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error[E0425]: cannot find value `field` in this scope
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--> $DIR/field-and-method-in-self-not-available-in-assoc-fn.rs:15:15
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LL | fn field(&self) -> u32 {
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| ----- a method by that name is available on `Self` here
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...
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LL | Foo { field }
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| ^^^^^
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help: you might have meant to use the available field
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LL | Foo { field: self.field }
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| ++++++++++++
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error: aborting due to 3 previous errors
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For more information about this error, try `rustc --explain E0425`.
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@ -8,13 +8,23 @@ error[E0425]: cannot find value `x` in this scope
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--> $DIR/issue-14254.rs:30:9
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LL | x;
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| ^ help: you might have meant to use the available field: `self.x`
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| ^
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help: you might have meant to use the available field
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LL | self.x;
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| +++++
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error[E0425]: cannot find value `y` in this scope
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--> $DIR/issue-14254.rs:32:9
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LL | y;
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| ^ help: you might have meant to use the available field: `self.y`
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| ^
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help: you might have meant to use the available field
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|
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LL | self.y;
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| +++++
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error[E0425]: cannot find value `a` in this scope
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--> $DIR/issue-14254.rs:34:9
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@ -31,7 +41,7 @@ LL | bah;
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help: you might have meant to refer to the associated function
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LL | Self::bah;
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| ~~~~~~~~~
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| ++++++
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error[E0425]: cannot find value `b` in this scope
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--> $DIR/issue-14254.rs:38:9
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@ -43,13 +53,23 @@ error[E0425]: cannot find value `x` in this scope
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--> $DIR/issue-14254.rs:47:9
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LL | x;
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| ^ help: you might have meant to use the available field: `self.x`
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| ^
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help: you might have meant to use the available field
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|
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LL | self.x;
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| +++++
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error[E0425]: cannot find value `y` in this scope
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--> $DIR/issue-14254.rs:49:9
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|
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LL | y;
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| ^ help: you might have meant to use the available field: `self.y`
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| ^
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|
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help: you might have meant to use the available field
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|
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LL | self.y;
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| +++++
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error[E0425]: cannot find value `a` in this scope
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--> $DIR/issue-14254.rs:51:9
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@ -66,7 +86,7 @@ LL | bah;
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help: you might have meant to refer to the associated function
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|
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LL | Self::bah;
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| ~~~~~~~~~
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| ++++++
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error[E0425]: cannot find value `b` in this scope
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--> $DIR/issue-14254.rs:55:9
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@ -83,7 +103,7 @@ LL | bah;
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help: you might have meant to refer to the associated function
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|
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LL | Self::bah;
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| ~~~~~~~~~
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| ++++++
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error[E0425]: cannot find value `bah` in this scope
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--> $DIR/issue-14254.rs:73:9
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@ -94,7 +114,7 @@ LL | bah;
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help: you might have meant to refer to the associated function
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|
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LL | Self::bah;
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| ~~~~~~~~~
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| ++++++
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error[E0425]: cannot find value `bah` in this scope
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--> $DIR/issue-14254.rs:82:9
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@ -105,7 +125,7 @@ LL | bah;
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help: you might have meant to refer to the associated function
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|
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LL | Self::bah;
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| ~~~~~~~~~
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| ++++++
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error[E0425]: cannot find value `bah` in this scope
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--> $DIR/issue-14254.rs:91:9
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@ -116,7 +136,7 @@ LL | bah;
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help: you might have meant to refer to the associated function
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|
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LL | Self::bah;
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| ~~~~~~~~~
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| ++++++
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error[E0425]: cannot find value `bah` in this scope
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--> $DIR/issue-14254.rs:100:9
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@ -127,55 +147,95 @@ LL | bah;
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help: you might have meant to refer to the associated function
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|
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LL | Self::bah;
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| ~~~~~~~~~
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| ++++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:19:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:28:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:45:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:62:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:71:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:80:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:89:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error[E0425]: cannot find function `baz` in this scope
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--> $DIR/issue-14254.rs:98:9
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|
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LL | baz();
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| ^^^ help: you might have meant to call the method: `self.baz`
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| ^^^
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|
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help: you might have meant to call the method
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|
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LL | self.baz();
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| +++++
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error: aborting due to 24 previous errors
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@ -21,7 +21,12 @@ error[E0425]: cannot find value `whiskers` in this scope
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--> $DIR/issue-2356.rs:79:5
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|
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LL | whiskers = 0;
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| ^^^^^^^^ help: you might have meant to use the available field: `self.whiskers`
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| ^^^^^^^^
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|
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help: you might have meant to use the available field
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|
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LL | self.whiskers = 0;
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| +++++
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error[E0425]: cannot find value `whiskers` in this scope
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--> $DIR/issue-2356.rs:84:5
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@ -47,19 +52,34 @@ error[E0425]: cannot find function `clone` in this scope
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--> $DIR/issue-2356.rs:24:5
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|
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LL | clone();
|
||||
| ^^^^^ help: you might have meant to call the method: `self.clone`
|
||||
| ^^^^^
|
||||
|
|
||||
help: you might have meant to call the method
|
||||
|
|
||||
LL | self.clone();
|
||||
| +++++
|
||||
|
||||
error[E0425]: cannot find function `default` in this scope
|
||||
--> $DIR/issue-2356.rs:31:5
|
||||
|
|
||||
LL | default();
|
||||
| ^^^^^^^ help: you might have meant to call the associated function: `Self::default`
|
||||
| ^^^^^^^
|
||||
|
|
||||
help: you might have meant to call the associated function
|
||||
|
|
||||
LL | Self::default();
|
||||
| ++++++
|
||||
|
||||
error[E0425]: cannot find function `shave` in this scope
|
||||
--> $DIR/issue-2356.rs:41:5
|
||||
|
|
||||
LL | shave(4);
|
||||
| ^^^^^ help: you might have meant to call the associated function: `Self::shave`
|
||||
| ^^^^^
|
||||
|
|
||||
help: you might have meant to call the associated function
|
||||
|
|
||||
LL | Self::shave(4);
|
||||
| ++++++
|
||||
|
||||
error[E0425]: cannot find function `purr` in this scope
|
||||
--> $DIR/issue-2356.rs:43:5
|
||||
|
||||
@ -8,7 +8,12 @@ error[E0425]: cannot find value `banana` in this scope
|
||||
--> $DIR/issue-60057.rs:14:21
|
||||
|
|
||||
LL | banana: banana
|
||||
| ^^^^^^ help: you might have meant to use the available field: `self.banana`
|
||||
| ^^^^^^
|
||||
|
|
||||
help: you might have meant to use the available field
|
||||
|
|
||||
LL | banana: self.banana
|
||||
| +++++
|
||||
|
||||
error: aborting due to 2 previous errors
|
||||
|
||||
|
||||
@ -14,13 +14,23 @@ error[E0425]: cannot find value `field` in this scope
|
||||
--> $DIR/resolve-assoc-suggestions.rs:20:9
|
||||
|
|
||||
LL | field;
|
||||
| ^^^^^ help: you might have meant to use the available field: `self.field`
|
||||
| ^^^^^
|
||||
|
|
||||
help: you might have meant to use the available field
|
||||
|
|
||||
LL | self.field;
|
||||
| +++++
|
||||
|
||||
error[E0412]: cannot find type `Type` in this scope
|
||||
--> $DIR/resolve-assoc-suggestions.rs:23:16
|
||||
|
|
||||
LL | let _: Type;
|
||||
| ^^^^ help: you might have meant to use the associated type: `Self::Type`
|
||||
| ^^^^
|
||||
|
|
||||
help: you might have meant to use the associated type
|
||||
|
|
||||
LL | let _: Self::Type;
|
||||
| ++++++
|
||||
|
||||
error[E0531]: cannot find tuple struct or tuple variant `Type` in this scope
|
||||
--> $DIR/resolve-assoc-suggestions.rs:25:13
|
||||
@ -50,7 +60,12 @@ error[E0425]: cannot find value `method` in this scope
|
||||
--> $DIR/resolve-assoc-suggestions.rs:34:9
|
||||
|
|
||||
LL | method;
|
||||
| ^^^^^^ help: you might have meant to refer to the method: `self.method`
|
||||
| ^^^^^^
|
||||
|
|
||||
help: you might have meant to refer to the method
|
||||
|
|
||||
LL | self.method;
|
||||
| +++++
|
||||
|
||||
error: aborting due to 9 previous errors
|
||||
|
||||
|
||||
@ -8,13 +8,23 @@ error[E0425]: cannot find value `field` in this scope
|
||||
--> $DIR/resolve-speculative-adjustment.rs:23:9
|
||||
|
|
||||
LL | field;
|
||||
| ^^^^^ help: you might have meant to use the available field: `self.field`
|
||||
| ^^^^^
|
||||
|
|
||||
help: you might have meant to use the available field
|
||||
|
|
||||
LL | self.field;
|
||||
| +++++
|
||||
|
||||
error[E0425]: cannot find function `method` in this scope
|
||||
--> $DIR/resolve-speculative-adjustment.rs:25:9
|
||||
|
|
||||
LL | method();
|
||||
| ^^^^^^ help: you might have meant to call the method: `self.method`
|
||||
| ^^^^^^
|
||||
|
|
||||
help: you might have meant to call the method
|
||||
|
|
||||
LL | self.method();
|
||||
| +++++
|
||||
|
||||
error[E0425]: cannot find function `method` in this scope
|
||||
--> $DIR/resolve-speculative-adjustment.rs:19:13
|
||||
|
||||
@ -25,7 +25,7 @@ LL | println!("{config}");
|
||||
help: you might have meant to use the available field
|
||||
|
|
||||
LL | println!("{self.config}");
|
||||
| ~~~~~~~~~~~
|
||||
| +++++
|
||||
help: a local variable with a similar name exists
|
||||
|
|
||||
LL | println!("{cofig}");
|
||||
@ -43,7 +43,7 @@ LL | fn ba() {}
|
||||
help: you might have meant to refer to the associated function
|
||||
|
|
||||
LL | Self::bah;
|
||||
| ~~~~~~~~~
|
||||
| ++++++
|
||||
help: a function with a similar name exists
|
||||
|
|
||||
LL | ba;
|
||||
@ -61,7 +61,7 @@ LL | const BARR: u32 = 3;
|
||||
help: you might have meant to use the associated `const`
|
||||
|
|
||||
LL | Self::BAR;
|
||||
| ~~~~~~~~~
|
||||
| ++++++
|
||||
help: a constant with a similar name exists
|
||||
|
|
||||
LL | BARR;
|
||||
@ -79,7 +79,7 @@ LL | type Bar = String;
|
||||
help: you might have meant to use the associated type
|
||||
|
|
||||
LL | let foo: Self::Baz = "".to_string();
|
||||
| ~~~~~~~~~
|
||||
| ++++++
|
||||
help: a type alias with a similar name exists
|
||||
|
|
||||
LL | let foo: Bar = "".to_string();
|
||||
@ -97,7 +97,7 @@ LL | fn ba() {}
|
||||
help: you might have meant to call the method
|
||||
|
|
||||
LL | self.baz();
|
||||
| ~~~~~~~~
|
||||
| +++++
|
||||
help: a function with a similar name exists
|
||||
|
|
||||
LL | ba();
|
||||
|
||||
@ -2,7 +2,12 @@ error[E0425]: cannot find value `meows` in this scope
|
||||
--> $DIR/class-missing-self.rs:9:7
|
||||
|
|
||||
LL | meows += 1;
|
||||
| ^^^^^ help: you might have meant to use the available field: `self.meows`
|
||||
| ^^^^^
|
||||
|
|
||||
help: you might have meant to use the available field
|
||||
|
|
||||
LL | self.meows += 1;
|
||||
| +++++
|
||||
|
||||
error[E0425]: cannot find function `sleep` in this scope
|
||||
--> $DIR/class-missing-self.rs:10:7
|
||||
|
||||
@ -2,7 +2,12 @@ error[E0412]: cannot find type `Bla` in this scope
|
||||
--> $DIR/assoc-type-in-method-return.rs:3:25
|
||||
|
|
||||
LL | fn to_bla(&self) -> Bla;
|
||||
| ^^^ help: you might have meant to use the associated type: `Self::Bla`
|
||||
| ^^^
|
||||
|
|
||||
help: you might have meant to use the associated type
|
||||
|
|
||||
LL | fn to_bla(&self) -> Self::Bla;
|
||||
| ++++++
|
||||
|
||||
error: aborting due to previous error
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user