Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

suggest tuple struct syntax #61782

Merged
merged 5 commits into from
Jun 20, 2019
Merged

suggest tuple struct syntax #61782

Show file tree
Hide file tree
Changes from 1 commit
Commits
Show all changes
5 commits
Select commit Hold shift + click to select a range
f7ecf1c
suggest tuple struct syntax
Electron-libre Jun 17, 2019
2191c1d
improve indentation
Electron-libre Jun 18, 2019
c917ba3
adt hint pointing to adt span
Electron-libre Jun 19, 2019
70e52f8
provide variant definition on tuple struct unknow field error
Electron-libre Jun 19, 2019
b72b1ac
fix indentation
Electron-libre Jun 19, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
71 changes: 41 additions & 30 deletions src/librustc_typeck/check/expr.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1215,38 +1215,49 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
}
},
ty);
// prevent all specified fields from being suggested
let skip_fields = skip_fields.iter().map(|ref x| x.ident.as_str());
if let Some(field_name) = Self::suggest_field_name(variant,
&field.ident.as_str(),
skip_fields.collect()) {
err.span_suggestion(
field.ident.span,
"a field with a similar name exists",
field_name.to_string(),
Applicability::MaybeIncorrect,
);
} else {
match ty.sty {
ty::Adt(adt, ..) => {
if adt.is_enum() {
err.span_label(field.ident.span,
format!("`{}::{}` does not have this field",
ty, variant.ident));
} else {
err.span_label(field.ident.span,
format!("`{}` does not have this field", ty));
}
let available_field_names = self.available_field_names(variant);
if !available_field_names.is_empty() {
err.note(&format!("available fields are: {}",
self.name_series_display(available_field_names)));
match variant.ctor_kind {
CtorKind::Fn => {
err.span_label(field.ident.span, "field does not exist");
err.span_label(
field.ident.span,
format!("`{adt}` is a tuple {kind_name}, use the appropriate syntax: `{adt}(/* fields */)`", adt=ty, kind_name=kind_name)
estebank marked this conversation as resolved.
Show resolved Hide resolved
);
}
_ => {
// prevent all specified fields from being suggested
let skip_fields = skip_fields.iter().map(|ref x| x.ident.as_str());
if let Some(field_name) = Self::suggest_field_name(variant,
&field.ident.as_str(),
skip_fields.collect()) {
estebank marked this conversation as resolved.
Show resolved Hide resolved
err.span_suggestion(
field.ident.span,
"a field with a similar name exists",
field_name.to_string(),
Applicability::MaybeIncorrect,
);
} else {
match ty.sty {
ty::Adt(adt, ..) => {
if adt.is_enum() {
err.span_label(field.ident.span,
format!("`{}::{}` does not have this field",
ty, variant.ident));
estebank marked this conversation as resolved.
Show resolved Hide resolved
} else {
err.span_label(field.ident.span,
format!("`{}` does not have this field", ty));
}
let available_field_names = self.available_field_names(variant);
if !available_field_names.is_empty() {
err.note(&format!("available fields are: {}",
self.name_series_display(available_field_names)));
}
}
_ => bug!("non-ADT passed to report_unknown_field")
}
}
_ => bug!("non-ADT passed to report_unknown_field")
};
}
};
err.emit();
}
err.emit();
estebank marked this conversation as resolved.
Show resolved Hide resolved
}

// Return an hint about the closest match in field names
Expand Down
5 changes: 4 additions & 1 deletion src/test/ui/issues/issue-4736.stderr
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,10 @@ error[E0560]: struct `NonCopyable` has no field named `p`
--> $DIR/issue-4736.rs:4:26
|
LL | let z = NonCopyable{ p: () };
| ^ help: a field with a similar name exists: `0`
| ^
| |
| field does not exist
| `NonCopyable` is a tuple struct, use the appropriate syntax: `NonCopyable(/* fields */)`

error: aborting due to previous error

Expand Down
7 changes: 4 additions & 3 deletions src/test/ui/numeric/numeric-fields.stderr
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,9 +2,10 @@ error[E0560]: struct `S` has no field named `0b1`
--> $DIR/numeric-fields.rs:4:15
|
LL | let s = S{0b1: 10, 0: 11};
| ^^^ `S` does not have this field
|
= note: available fields are: `0`, `1`
| ^^^
| |
| field does not exist
| `S` is a tuple struct, use the appropriate syntax: `S(/* fields */)`
estebank marked this conversation as resolved.
Show resolved Hide resolved

error[E0026]: struct `S` does not have a field named `0x1`
--> $DIR/numeric-fields.rs:7:17
Expand Down