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提交 28d0312b 编写于 作者: K Kevin Per
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Implement assertions and fixes to not emit empty spans without suggestions

上级 4b8f4319
隐藏空白更改
内联 并排
Showing with 81 addition and 117 deletion
compiler/rustc_errors/src/diagnostic.rs
浏览文件 @ 28d0312b
......@@ -567,6 +567,11 @@ pub fn multipart_suggestion_with_style(
style: SuggestionStyle,
) -> &mut Self {
assert!(!suggestion.is_empty());
debug_assert!(
!(suggestion.iter().any(|(sp, text)| sp.is_empty() && text.is_empty())),
"Span must not be empty and have no suggestion"
);
self.push_suggestion(CodeSuggestion {
substitutions: vec![Substitution {
parts: suggestion
......@@ -644,6 +649,10 @@ pub fn span_suggestion_with_style(
applicability: Applicability,
style: SuggestionStyle,
) -> &mut Self {
debug_assert!(
!(sp.is_empty() && suggestion.to_string().is_empty()),
"Span must not be empty and have no suggestion"
);
self.push_suggestion(CodeSuggestion {
substitutions: vec![Substitution {
parts: vec![SubstitutionPart { snippet: suggestion.to_string(), span: sp }],
......@@ -684,6 +693,12 @@ pub fn span_suggestions(
) -> &mut Self {
let mut suggestions: Vec<_> = suggestions.collect();
suggestions.sort();
debug_assert!(
!(sp.is_empty() && suggestions.iter().any(|suggestion| suggestion.is_empty())),
"Span must not be empty and have no suggestion"
);
let substitutions = suggestions
.into_iter()
.map(|snippet| Substitution { parts: vec![SubstitutionPart { snippet, span: sp }] })
......@@ -705,8 +720,18 @@ pub fn multipart_suggestions(
suggestions: impl Iterator<Item = Vec<(Span, String)>>,
applicability: Applicability,
) -> &mut Self {
let suggestions: Vec<_> = suggestions.collect();
debug_assert!(
!(suggestions
.iter()
.flat_map(|suggs| suggs)
.any(|(sp, suggestion)| sp.is_empty() && suggestion.is_empty())),
"Span must not be empty and have no suggestion"
);
self.push_suggestion(CodeSuggestion {
substitutions: suggestions
.into_iter()
.map(|sugg| Substitution {
parts: sugg
.into_iter()
......
compiler/rustc_expand/src/base.rs
浏览文件 @ 28d0312b
......@@ -22,7 +22,7 @@
use rustc_span::hygiene::{AstPass, ExpnData, ExpnKind, LocalExpnId};
use rustc_span::source_map::SourceMap;
use rustc_span::symbol::{kw, sym, Ident, Symbol};
use rustc_span::{FileName, Span, DUMMY_SP};
use rustc_span::{BytePos, FileName, Span, DUMMY_SP};
use smallvec::{smallvec, SmallVec};
use std::default::Default;
......@@ -1228,8 +1228,9 @@ pub fn expr_to_spanned_string<'a>(
ast::LitKind::Str(s, style) => return Ok((s, style, expr.span)),
ast::LitKind::ByteStr(_) => {
let mut err = cx.struct_span_err(l.span, err_msg);
let span = expr.span.shrink_to_lo();
err.span_suggestion(
expr.span.shrink_to_lo(),
span.with_hi(span.lo() + BytePos(1)),
"consider removing the leading `b`",
"",
Applicability::MaybeIncorrect,
......
compiler/rustc_hir_analysis/src/astconv/mod.rs
浏览文件 @ 28d0312b
......@@ -3051,24 +3051,27 @@ fn maybe_lint_bare_trait(&self, self_ty: &hir::Ty<'_>, in_path: bool) {
.map_or(false, |s| s.trim_end().ends_with('<'));
let is_global = poly_trait_ref.trait_ref.path.is_global();
let sugg = Vec::from_iter([
(
self_ty.span.shrink_to_lo(),
format!(
"{}dyn {}",
if needs_bracket { "<" } else { "" },
if is_global { "(" } else { "" },
),
let mut sugg = Vec::from_iter([(
self_ty.span.shrink_to_lo(),
format!(
"{}dyn {}",
if needs_bracket { "<" } else { "" },
if is_global { "(" } else { "" },
),
(
)]);
if is_global || needs_bracket {
sugg.push((
self_ty.span.shrink_to_hi(),
format!(
"{}{}",
if is_global { ")" } else { "" },
if needs_bracket { ">" } else { "" },
),
),
]);
));
}
if self_ty.span.edition() >= Edition::Edition2021 {
let msg = "trait objects must include the `dyn` keyword";
let label = "add `dyn` keyword before this trait";
......
compiler/rustc_parse/src/parser/diagnostics.rs
浏览文件 @ 28d0312b
......@@ -1374,9 +1374,17 @@ fn inc_dec_standalone_suggest(
kind: IncDecRecovery,
(pre_span, post_span): (Span, Span),
) -> MultiSugg {
let mut patches = Vec::new();
if !pre_span.is_empty() {
patches.push((pre_span, String::new()));
}
patches.push((post_span, format!(" {}= 1", kind.op.chr())));
MultiSugg {
msg: format!("use `{}= 1` instead", kind.op.chr()),
patches: vec![(pre_span, String::new()), (post_span, format!(" {}= 1", kind.op.chr()))],
patches,
applicability: Applicability::MachineApplicable,
}
}
......
src/tools/clippy/clippy_lints/src/manual_assert.rs
浏览文件 @ 28d0312b
......@@ -69,11 +69,13 @@ fn check_expr(&mut self, cx: &LateContext<'tcx>, expr: &Expr<'tcx>) {
"only a `panic!` in `if`-then statement",
|diag| {
// comments can be noisy, do not show them to the user
diag.tool_only_span_suggestion(
expr.span.shrink_to_lo(),
"add comments back",
comments,
applicability);
if !comments.is_empty() {
diag.tool_only_span_suggestion(
expr.span.shrink_to_lo(),
"add comments back",
comments,
applicability);
}
diag.span_suggestion(
expr.span,
"try instead",
......
src/tools/clippy/clippy_lints/src/needless_late_init.rs
浏览文件 @ 28d0312b
......@@ -180,10 +180,13 @@ fn assignment_suggestions<'tcx>(
let suggestions = assignments
.iter()
.flat_map(|assignment| {
[
assignment.span.until(assignment.rhs_span),
assignment.rhs_span.shrink_to_hi().with_hi(assignment.span.hi()),
]
let mut spans = vec![assignment.span.until(assignment.rhs_span)];
if assignment.rhs_span.hi() != assignment.span.hi() {
spans.push(assignment.rhs_span.shrink_to_hi().with_hi(assignment.span.hi()));
}
spans
})
.map(|span| (span, String::new()))
.collect::<Vec<(Span, String)>>();
......
src/tools/clippy/tests/ui/manual_assert.edition2018.stderr
浏览文件 @ 28d0312b
......@@ -4,13 +4,9 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qaqaq{:?}", a);
LL | | }
| |_____^
| |_____^ help: try instead: `assert!(a.is_empty(), "qaqaq{:?}", a);`
|
= note: `-D clippy::manual-assert` implied by `-D warnings`
help: try instead
|
LL | assert!(a.is_empty(), "qaqaq{:?}", a);
|
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:34:5
......@@ -18,12 +14,7 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qwqwq");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(a.is_empty(), "qwqwq");
|
| |_____^ help: try instead: `assert!(a.is_empty(), "qwqwq");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:51:5
......@@ -31,12 +22,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() {
LL | | panic!("panic1");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!b.is_empty(), "panic1");
|
| |_____^ help: try instead: `assert!(!b.is_empty(), "panic1");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:54:5
......@@ -44,12 +30,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() && a.is_empty() {
LL | | panic!("panic2");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() && a.is_empty()), "panic2");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() && a.is_empty()), "panic2");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:57:5
......@@ -57,12 +38,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() && !b.is_empty() {
LL | | panic!("panic3");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() && !b.is_empty()), "panic3");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() && !b.is_empty()), "panic3");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:60:5
......@@ -70,12 +46,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() || a.is_empty() {
LL | | panic!("panic4");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() || a.is_empty()), "panic4");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() || a.is_empty()), "panic4");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:63:5
......@@ -83,12 +54,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() || !b.is_empty() {
LL | | panic!("panic5");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() || !b.is_empty()), "panic5");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() || !b.is_empty()), "panic5");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:66:5
......@@ -96,12 +62,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() {
LL | | panic!("with expansion {}", one!())
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!a.is_empty(), "with expansion {}", one!());
|
| |_____^ help: try instead: `assert!(!a.is_empty(), "with expansion {}", one!());`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:73:5
......
src/tools/clippy/tests/ui/manual_assert.edition2021.stderr
浏览文件 @ 28d0312b
......@@ -4,13 +4,9 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qaqaq{:?}", a);
LL | | }
| |_____^
| |_____^ help: try instead: `assert!(a.is_empty(), "qaqaq{:?}", a);`
|
= note: `-D clippy::manual-assert` implied by `-D warnings`
help: try instead
|
LL | assert!(a.is_empty(), "qaqaq{:?}", a);
|
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:34:5
......@@ -18,12 +14,7 @@ error: only a `panic!` in `if`-then statement
LL | / if !a.is_empty() {
LL | | panic!("qwqwq");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(a.is_empty(), "qwqwq");
|
| |_____^ help: try instead: `assert!(a.is_empty(), "qwqwq");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:51:5
......@@ -31,12 +22,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() {
LL | | panic!("panic1");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!b.is_empty(), "panic1");
|
| |_____^ help: try instead: `assert!(!b.is_empty(), "panic1");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:54:5
......@@ -44,12 +30,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() && a.is_empty() {
LL | | panic!("panic2");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() && a.is_empty()), "panic2");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() && a.is_empty()), "panic2");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:57:5
......@@ -57,12 +38,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() && !b.is_empty() {
LL | | panic!("panic3");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() && !b.is_empty()), "panic3");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() && !b.is_empty()), "panic3");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:60:5
......@@ -70,12 +46,7 @@ error: only a `panic!` in `if`-then statement
LL | / if b.is_empty() || a.is_empty() {
LL | | panic!("panic4");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(b.is_empty() || a.is_empty()), "panic4");
|
| |_____^ help: try instead: `assert!(!(b.is_empty() || a.is_empty()), "panic4");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:63:5
......@@ -83,12 +54,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() || !b.is_empty() {
LL | | panic!("panic5");
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!(a.is_empty() || !b.is_empty()), "panic5");
|
| |_____^ help: try instead: `assert!(!(a.is_empty() || !b.is_empty()), "panic5");`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:66:5
......@@ -96,12 +62,7 @@ error: only a `panic!` in `if`-then statement
LL | / if a.is_empty() {
LL | | panic!("with expansion {}", one!())
LL | | }
| |_____^
|
help: try instead
|
LL | assert!(!a.is_empty(), "with expansion {}", one!());
|
| |_____^ help: try instead: `assert!(!a.is_empty(), "with expansion {}", one!());`
error: only a `panic!` in `if`-then statement
--> $DIR/manual_assert.rs:73:5
......
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