From 7b667e7811f4a4b496f38d25c5e824f13638cdbb Mon Sep 17 00:00:00 2001 From: xizheyin Date: Thu, 31 Jul 2025 00:44:22 +0800 Subject: [PATCH] Extend `is_case_difference` to handle digit-letter confusables Signed-off-by: xizheyin --- compiler/rustc_errors/src/emitter.rs | 135 ++++++++++++++---- compiler/rustc_errors/src/lib.rs | 11 +- .../tests/ui/match_str_case_mismatch.stderr | 2 +- tests/ui/error-codes/E0423.stderr | 2 +- .../ui/lint/lint-non-uppercase-usages.stderr | 2 +- tests/ui/parser/item-kw-case-mismatch.stderr | 6 +- tests/ui/parser/kw-in-trait-bounds.stderr | 8 +- .../ui/parser/misspelled-keywords/hrdt.stderr | 2 +- .../misspelled-keywords/impl-return.stderr | 2 +- .../parser/misspelled-keywords/static.stderr | 2 +- .../parser/misspelled-keywords/struct.stderr | 2 +- .../recover-fn-trait-from-fn-kw.stderr | 4 +- .../typod-const-in-const-param-def.stderr | 8 +- .../assoc-ct-for-assoc-method.stderr | 2 +- .../suggestions/bool_typo_err_suggest.stderr | 2 +- .../case-difference-suggestions.rs | 57 ++++++++ .../case-difference-suggestions.stderr | 99 +++++++++++++ .../suggestions/incorrect-variant-literal.svg | 2 +- 18 files changed, 290 insertions(+), 58 deletions(-) create mode 100644 tests/ui/suggestions/case-difference-suggestions.rs create mode 100644 tests/ui/suggestions/case-difference-suggestions.stderr diff --git a/compiler/rustc_errors/src/emitter.rs b/compiler/rustc_errors/src/emitter.rs index 46a4a18682479..55a42d0426e17 100644 --- a/compiler/rustc_errors/src/emitter.rs +++ b/compiler/rustc_errors/src/emitter.rs @@ -262,19 +262,11 @@ pub trait Emitter { format!("help: {msg}") } else { // Show the default suggestion text with the substitution - format!( - "help: {}{}: `{}`", - msg, - if self - .source_map() - .is_some_and(|sm| is_case_difference(sm, snippet, part.span,)) - { - " (notice the capitalization)" - } else { - "" - }, - snippet, - ) + let confusion_type = self + .source_map() + .map(|sm| detect_confusion_type(sm, snippet, part.span)) + .unwrap_or(ConfusionType::None); + format!("help: {}{}: `{}`", msg, confusion_type.label_text(), snippet,) }; primary_span.push_span_label(part.span, msg); @@ -2028,12 +2020,12 @@ impl HumanEmitter { buffer.append(0, ": ", Style::HeaderMsg); let mut msg = vec![(suggestion.msg.to_owned(), Style::NoStyle)]; - if suggestions - .iter() - .take(MAX_SUGGESTIONS) - .any(|(_, _, _, only_capitalization)| *only_capitalization) + if let Some(confusion_type) = + suggestions.iter().take(MAX_SUGGESTIONS).find_map(|(_, _, _, confusion_type)| { + if confusion_type.has_confusion() { Some(*confusion_type) } else { None } + }) { - msg.push((" (notice the capitalization difference)".into(), Style::NoStyle)); + msg.push((confusion_type.label_text().into(), Style::NoStyle)); } self.msgs_to_buffer( &mut buffer, @@ -3528,24 +3520,107 @@ pub fn is_different(sm: &SourceMap, suggested: &str, sp: Span) -> bool { } /// Whether the original and suggested code are visually similar enough to warrant extra wording. -pub fn is_case_difference(sm: &SourceMap, suggested: &str, sp: Span) -> bool { - // FIXME: this should probably be extended to also account for `FO0` → `FOO` and unicode. +pub fn detect_confusion_type(sm: &SourceMap, suggested: &str, sp: Span) -> ConfusionType { let found = match sm.span_to_snippet(sp) { Ok(snippet) => snippet, Err(e) => { warn!(error = ?e, "Invalid span {:?}", sp); - return false; + return ConfusionType::None; } }; - let ascii_confusables = &['c', 'f', 'i', 'k', 'o', 's', 'u', 'v', 'w', 'x', 'y', 'z']; - // All the chars that differ in capitalization are confusable (above): - let confusable = iter::zip(found.chars(), suggested.chars()) - .filter(|(f, s)| f != s) - .all(|(f, s)| ascii_confusables.contains(&f) || ascii_confusables.contains(&s)); - confusable && found.to_lowercase() == suggested.to_lowercase() - // FIXME: We sometimes suggest the same thing we already have, which is a - // bug, but be defensive against that here. - && found != suggested + + let mut has_case_confusion = false; + let mut has_digit_letter_confusion = false; + + if found.len() == suggested.len() { + let mut has_case_diff = false; + let mut has_digit_letter_confusable = false; + let mut has_other_diff = false; + + let ascii_confusables = &['c', 'f', 'i', 'k', 'o', 's', 'u', 'v', 'w', 'x', 'y', 'z']; + + let digit_letter_confusables = [('0', 'O'), ('1', 'l'), ('5', 'S'), ('8', 'B'), ('9', 'g')]; + + for (f, s) in iter::zip(found.chars(), suggested.chars()) { + if f != s { + if f.to_lowercase().to_string() == s.to_lowercase().to_string() { + // Check for case differences (any character that differs only in case) + if ascii_confusables.contains(&f) || ascii_confusables.contains(&s) { + has_case_diff = true; + } else { + has_other_diff = true; + } + } else if digit_letter_confusables.contains(&(f, s)) + || digit_letter_confusables.contains(&(s, f)) + { + // Check for digit-letter confusables (like 0 vs O, 1 vs l, etc.) + has_digit_letter_confusable = true; + } else { + has_other_diff = true; + } + } + } + + // If we have case differences and no other differences + if has_case_diff && !has_other_diff && found != suggested { + has_case_confusion = true; + } + if has_digit_letter_confusable && !has_other_diff && found != suggested { + has_digit_letter_confusion = true; + } + } + + match (has_case_confusion, has_digit_letter_confusion) { + (true, true) => ConfusionType::Both, + (true, false) => ConfusionType::Case, + (false, true) => ConfusionType::DigitLetter, + (false, false) => ConfusionType::None, + } +} + +/// Represents the type of confusion detected between original and suggested code. +#[derive(Debug, Clone, Copy, PartialEq, Eq)] +pub enum ConfusionType { + /// No confusion detected + None, + /// Only case differences (e.g., "hello" vs "Hello") + Case, + /// Only digit-letter confusion (e.g., "0" vs "O", "1" vs "l") + DigitLetter, + /// Both case and digit-letter confusion + Both, +} + +impl ConfusionType { + /// Returns the appropriate label text for this confusion type. + pub fn label_text(&self) -> &'static str { + match self { + ConfusionType::None => "", + ConfusionType::Case => " (notice the capitalization)", + ConfusionType::DigitLetter => " (notice the digit/letter confusion)", + ConfusionType::Both => " (notice the capitalization and digit/letter confusion)", + } + } + + /// Combines two confusion types. If either is `Both`, the result is `Both`. + /// If one is `Case` and the other is `DigitLetter`, the result is `Both`. + /// Otherwise, returns the non-`None` type, or `None` if both are `None`. + pub fn combine(self, other: ConfusionType) -> ConfusionType { + match (self, other) { + (ConfusionType::None, other) => other, + (this, ConfusionType::None) => this, + (ConfusionType::Both, _) | (_, ConfusionType::Both) => ConfusionType::Both, + (ConfusionType::Case, ConfusionType::DigitLetter) + | (ConfusionType::DigitLetter, ConfusionType::Case) => ConfusionType::Both, + (ConfusionType::Case, ConfusionType::Case) => ConfusionType::Case, + (ConfusionType::DigitLetter, ConfusionType::DigitLetter) => ConfusionType::DigitLetter, + } + } + + /// Returns true if this confusion type represents any kind of confusion. + pub fn has_confusion(&self) -> bool { + *self != ConfusionType::None + } } pub(crate) fn should_show_source_code( diff --git a/compiler/rustc_errors/src/lib.rs b/compiler/rustc_errors/src/lib.rs index 381d780077d19..2534cddf10573 100644 --- a/compiler/rustc_errors/src/lib.rs +++ b/compiler/rustc_errors/src/lib.rs @@ -50,7 +50,7 @@ pub use diagnostic_impls::{ IndicateAnonymousLifetime, SingleLabelManySpans, }; pub use emitter::ColorConfig; -use emitter::{DynEmitter, Emitter, is_case_difference, is_different}; +use emitter::{ConfusionType, DynEmitter, Emitter, detect_confusion_type, is_different}; use rustc_data_structures::AtomicRef; use rustc_data_structures::fx::{FxHashSet, FxIndexMap, FxIndexSet}; use rustc_data_structures::stable_hasher::StableHasher; @@ -308,7 +308,7 @@ impl CodeSuggestion { pub(crate) fn splice_lines( &self, sm: &SourceMap, - ) -> Vec<(String, Vec, Vec>, bool)> { + ) -> Vec<(String, Vec, Vec>, ConfusionType)> { // For the `Vec>` value, the first level of the vector // corresponds to the output snippet's lines, while the second level corresponds to the // substrings within that line that should be highlighted. @@ -414,14 +414,15 @@ impl CodeSuggestion { // We need to keep track of the difference between the existing code and the added // or deleted code in order to point at the correct column *after* substitution. let mut acc = 0; - let mut only_capitalization = false; + let mut confusion_type = ConfusionType::None; for part in &mut substitution.parts { // If this is a replacement of, e.g. `"a"` into `"ab"`, adjust the // suggestion and snippet to look as if we just suggested to add // `"b"`, which is typically much easier for the user to understand. part.trim_trivial_replacements(sm); - only_capitalization |= is_case_difference(sm, &part.snippet, part.span); + let part_confusion = detect_confusion_type(sm, &part.snippet, part.span); + confusion_type = confusion_type.combine(part_confusion); let cur_lo = sm.lookup_char_pos(part.span.lo()); if prev_hi.line == cur_lo.line { let mut count = @@ -511,7 +512,7 @@ impl CodeSuggestion { if highlights.iter().all(|parts| parts.is_empty()) { None } else { - Some((buf, substitution.parts, highlights, only_capitalization)) + Some((buf, substitution.parts, highlights, confusion_type)) } }) .collect() diff --git a/src/tools/clippy/tests/ui/match_str_case_mismatch.stderr b/src/tools/clippy/tests/ui/match_str_case_mismatch.stderr index 8068edfff947f..c2b58b952aaa5 100644 --- a/src/tools/clippy/tests/ui/match_str_case_mismatch.stderr +++ b/src/tools/clippy/tests/ui/match_str_case_mismatch.stderr @@ -18,7 +18,7 @@ error: this `match` arm has a differing case than its expression LL | "~!@#$%^&*()-_=+Foo" => {}, | ^^^^^^^^^^^^^^^^^^^^ | -help: consider changing the case of this arm to respect `to_ascii_lowercase` (notice the capitalization difference) +help: consider changing the case of this arm to respect `to_ascii_lowercase` (notice the capitalization) | LL - "~!@#$%^&*()-_=+Foo" => {}, LL + "~!@#$%^&*()-_=+foo" => {}, diff --git a/tests/ui/error-codes/E0423.stderr b/tests/ui/error-codes/E0423.stderr index e50b8bd820cf8..b699e53fb4809 100644 --- a/tests/ui/error-codes/E0423.stderr +++ b/tests/ui/error-codes/E0423.stderr @@ -54,7 +54,7 @@ help: use struct literal syntax instead LL - let f = Foo(); LL + let f = Foo { a: val }; | -help: a function with a similar name exists (notice the capitalization difference) +help: a function with a similar name exists (notice the capitalization) | LL - let f = Foo(); LL + let f = foo(); diff --git a/tests/ui/lint/lint-non-uppercase-usages.stderr b/tests/ui/lint/lint-non-uppercase-usages.stderr index 7c7e573a88edc..b34be31216d3a 100644 --- a/tests/ui/lint/lint-non-uppercase-usages.stderr +++ b/tests/ui/lint/lint-non-uppercase-usages.stderr @@ -29,7 +29,7 @@ warning: const parameter `foo` should have an upper case name LL | fn foo() { | ^^^ | -help: convert the identifier to upper case (notice the capitalization difference) +help: convert the identifier to upper case (notice the capitalization) | LL - fn foo() { LL + fn foo() { diff --git a/tests/ui/parser/item-kw-case-mismatch.stderr b/tests/ui/parser/item-kw-case-mismatch.stderr index df39eb10fdbe1..d2a1eb7f2f521 100644 --- a/tests/ui/parser/item-kw-case-mismatch.stderr +++ b/tests/ui/parser/item-kw-case-mismatch.stderr @@ -4,7 +4,7 @@ error: keyword `use` is written in the wrong case LL | Use std::ptr::read; | ^^^ | -help: write it in the correct case (notice the capitalization difference) +help: write it in the correct case (notice the capitalization) | LL - Use std::ptr::read; LL + use std::ptr::read; @@ -28,7 +28,7 @@ error: keyword `fn` is written in the wrong case LL | async Fn _a() {} | ^^ | -help: write it in the correct case (notice the capitalization difference) +help: write it in the correct case (notice the capitalization) | LL - async Fn _a() {} LL + async fn _a() {} @@ -40,7 +40,7 @@ error: keyword `fn` is written in the wrong case LL | Fn _b() {} | ^^ | -help: write it in the correct case (notice the capitalization difference) +help: write it in the correct case (notice the capitalization) | LL - Fn _b() {} LL + fn _b() {} diff --git a/tests/ui/parser/kw-in-trait-bounds.stderr b/tests/ui/parser/kw-in-trait-bounds.stderr index 1892d0b62265a..5a4adf3e37b4c 100644 --- a/tests/ui/parser/kw-in-trait-bounds.stderr +++ b/tests/ui/parser/kw-in-trait-bounds.stderr @@ -4,7 +4,7 @@ error: expected identifier, found keyword `fn` LL | fn _f(_: impl fn(), _: &dyn fn()) | ^^ | -help: use `Fn` to refer to the trait (notice the capitalization difference) +help: use `Fn` to refer to the trait (notice the capitalization) | LL - fn _f(_: impl fn(), _: &dyn fn()) LL + fn _f(_: impl fn(), _: &dyn fn()) @@ -16,7 +16,7 @@ error: expected identifier, found keyword `fn` LL | fn _f(_: impl fn(), _: &dyn fn()) | ^^ | -help: use `Fn` to refer to the trait (notice the capitalization difference) +help: use `Fn` to refer to the trait (notice the capitalization) | LL - fn _f(_: impl fn(), _: &dyn fn()) LL + fn _f(_: impl Fn(), _: &dyn fn()) @@ -28,7 +28,7 @@ error: expected identifier, found keyword `fn` LL | fn _f(_: impl fn(), _: &dyn fn()) | ^^ | -help: use `Fn` to refer to the trait (notice the capitalization difference) +help: use `Fn` to refer to the trait (notice the capitalization) | LL - fn _f(_: impl fn(), _: &dyn fn()) LL + fn _f(_: impl fn(), _: &dyn Fn()) @@ -40,7 +40,7 @@ error: expected identifier, found keyword `fn` LL | G: fn(), | ^^ | -help: use `Fn` to refer to the trait (notice the capitalization difference) +help: use `Fn` to refer to the trait (notice the capitalization) | LL - G: fn(), LL + G: Fn(), diff --git a/tests/ui/parser/misspelled-keywords/hrdt.stderr b/tests/ui/parser/misspelled-keywords/hrdt.stderr index e5fc1a5038205..497bd613bf454 100644 --- a/tests/ui/parser/misspelled-keywords/hrdt.stderr +++ b/tests/ui/parser/misspelled-keywords/hrdt.stderr @@ -4,7 +4,7 @@ error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found keyword LL | Where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8, | ^^^ expected one of 7 possible tokens | -help: write keyword `where` in lowercase (notice the capitalization difference) +help: write keyword `where` in lowercase (notice the capitalization) | LL - Where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8, LL + where for<'a> F: Fn(&'a (u8, u16)) -> &'a u8, diff --git a/tests/ui/parser/misspelled-keywords/impl-return.stderr b/tests/ui/parser/misspelled-keywords/impl-return.stderr index ff5391461a9fb..d49d962d7e95e 100644 --- a/tests/ui/parser/misspelled-keywords/impl-return.stderr +++ b/tests/ui/parser/misspelled-keywords/impl-return.stderr @@ -4,7 +4,7 @@ error: expected one of `!`, `(`, `+`, `::`, `<`, `where`, or `{`, found `Display LL | fn code() -> Impl Display {} | ^^^^^^^ expected one of 7 possible tokens | -help: write keyword `impl` in lowercase (notice the capitalization difference) +help: write keyword `impl` in lowercase (notice the capitalization) | LL - fn code() -> Impl Display {} LL + fn code() -> impl Display {} diff --git a/tests/ui/parser/misspelled-keywords/static.stderr b/tests/ui/parser/misspelled-keywords/static.stderr index e559f2be10915..0df40bcdc33b5 100644 --- a/tests/ui/parser/misspelled-keywords/static.stderr +++ b/tests/ui/parser/misspelled-keywords/static.stderr @@ -4,7 +4,7 @@ error: expected one of `!` or `::`, found `a` LL | Static a = 0; | ^ expected one of `!` or `::` | -help: write keyword `static` in lowercase (notice the capitalization difference) +help: write keyword `static` in lowercase (notice the capitalization) | LL - Static a = 0; LL + static a = 0; diff --git a/tests/ui/parser/misspelled-keywords/struct.stderr b/tests/ui/parser/misspelled-keywords/struct.stderr index edbec3b9456b3..af8614ef14b71 100644 --- a/tests/ui/parser/misspelled-keywords/struct.stderr +++ b/tests/ui/parser/misspelled-keywords/struct.stderr @@ -4,7 +4,7 @@ error: expected one of `!` or `::`, found `Foor` LL | Struct Foor { | ^^^^ expected one of `!` or `::` | -help: write keyword `struct` in lowercase (notice the capitalization difference) +help: write keyword `struct` in lowercase (notice the capitalization) | LL - Struct Foor { LL + struct Foor { diff --git a/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr b/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr index 4e1fcaf49368e..bd809e77a8f95 100644 --- a/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr +++ b/tests/ui/parser/recover/recover-fn-trait-from-fn-kw.stderr @@ -4,7 +4,7 @@ error: expected identifier, found keyword `fn` LL | fn foo(_: impl fn() -> i32) {} | ^^ | -help: use `Fn` to refer to the trait (notice the capitalization difference) +help: use `Fn` to refer to the trait (notice the capitalization) | LL - fn foo(_: impl fn() -> i32) {} LL + fn foo(_: impl Fn() -> i32) {} @@ -16,7 +16,7 @@ error: expected identifier, found keyword `fn` LL | fn foo2(_: T) {} | ^^ | -help: use `Fn` to refer to the trait (notice the capitalization difference) +help: use `Fn` to refer to the trait (notice the capitalization) | LL - fn foo2(_: T) {} LL + fn foo2(_: T) {} diff --git a/tests/ui/parser/typod-const-in-const-param-def.stderr b/tests/ui/parser/typod-const-in-const-param-def.stderr index bf7168a015738..cc1600fe5cb80 100644 --- a/tests/ui/parser/typod-const-in-const-param-def.stderr +++ b/tests/ui/parser/typod-const-in-const-param-def.stderr @@ -4,7 +4,7 @@ error: `const` keyword was mistyped as `Const` LL | pub fn foo() {} | ^^^^^ | -help: use the `const` keyword (notice the capitalization difference) +help: use the `const` keyword (notice the capitalization) | LL - pub fn foo() {} LL + pub fn foo() {} @@ -16,7 +16,7 @@ error: `const` keyword was mistyped as `Const` LL | pub fn baz() {} | ^^^^^ | -help: use the `const` keyword (notice the capitalization difference) +help: use the `const` keyword (notice the capitalization) | LL - pub fn baz() {} LL + pub fn baz() {} @@ -28,7 +28,7 @@ error: `const` keyword was mistyped as `Const` LL | pub fn qux() {} | ^^^^^ | -help: use the `const` keyword (notice the capitalization difference) +help: use the `const` keyword (notice the capitalization) | LL - pub fn qux() {} LL + pub fn qux() {} @@ -40,7 +40,7 @@ error: `const` keyword was mistyped as `Const` LL | pub fn quux() {} | ^^^^^ | -help: use the `const` keyword (notice the capitalization difference) +help: use the `const` keyword (notice the capitalization) | LL - pub fn quux() {} LL + pub fn quux() {} diff --git a/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr b/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr index 6d6fd98303845..47efe69cfc21f 100644 --- a/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr +++ b/tests/ui/suggestions/assoc-ct-for-assoc-method.stderr @@ -8,7 +8,7 @@ LL | let x: i32 = MyS::foo; | = note: expected type `i32` found fn item `fn() -> MyS {MyS::foo}` -help: try referring to the associated const `FOO` instead (notice the capitalization difference) +help: try referring to the associated const `FOO` instead (notice the capitalization) | LL - let x: i32 = MyS::foo; LL + let x: i32 = MyS::FOO; diff --git a/tests/ui/suggestions/bool_typo_err_suggest.stderr b/tests/ui/suggestions/bool_typo_err_suggest.stderr index faf799d0fda22..d46ce1ad8a9b6 100644 --- a/tests/ui/suggestions/bool_typo_err_suggest.stderr +++ b/tests/ui/suggestions/bool_typo_err_suggest.stderr @@ -16,7 +16,7 @@ error[E0425]: cannot find value `False` in this scope LL | let y = False; | ^^^^^ not found in this scope | -help: you may want to use a bool value instead (notice the capitalization difference) +help: you may want to use a bool value instead (notice the capitalization) | LL - let y = False; LL + let y = false; diff --git a/tests/ui/suggestions/case-difference-suggestions.rs b/tests/ui/suggestions/case-difference-suggestions.rs new file mode 100644 index 0000000000000..d554b6e936734 --- /dev/null +++ b/tests/ui/suggestions/case-difference-suggestions.rs @@ -0,0 +1,57 @@ +fn main() { + + // Simple case difference, no hit + let hello = "hello"; + println!("{}", Hello); //~ ERROR cannot find value `Hello` in this scope + + // Multiple case differences, hit + let myVariable = 10; + println!("{}", myvariable); //~ ERROR cannot find value `myvariable` in this scope + + // Case difference with special characters, hit + let user_name = "john"; + println!("{}", User_Name); //~ ERROR cannot find value `User_Name` in this scope + + // All uppercase vs all lowercase, hit + let FOO = 42; + println!("{}", foo); //~ ERROR cannot find value `foo` in this scope + + + // 0 vs O + let FFO0 = 100; + println!("{}", FFOO); //~ ERROR cannot find value `FFOO` in this scope + + let l1st = vec![1, 2, 3]; + println!("{}", list); //~ ERROR cannot find value `list` in this scope + + let S5 = "test"; + println!("{}", SS); //~ ERROR cannot find value `SS` in this scope + + let aS5 = "test"; + println!("{}", a55); //~ ERROR cannot find value `a55` in this scope + + let B8 = 8; + println!("{}", BB); //~ ERROR cannot find value `BB` in this scope + + let g9 = 9; + println!("{}", gg); //~ ERROR cannot find value `gg` in this scope + + let o1d = "old"; + println!("{}", old); //~ ERROR cannot find value `old` in this scope + + let new1 = "new"; + println!("{}", newl); //~ ERROR cannot find value `newl` in this scope + + let apple = "apple"; + println!("{}", app1e); //~ ERROR cannot find value `app1e` in this scope + + let a = 1; + println!("{}", A); //~ ERROR cannot find value `A` in this scope + + let worldlu = "world"; + println!("{}", world1U); //~ ERROR cannot find value `world1U` in this scope + + let myV4rlable = 42; + println!("{}", myv4r1able); //~ ERROR cannot find value `myv4r1able` in this scope + +} diff --git a/tests/ui/suggestions/case-difference-suggestions.stderr b/tests/ui/suggestions/case-difference-suggestions.stderr new file mode 100644 index 0000000000000..c3d2410a6eb20 --- /dev/null +++ b/tests/ui/suggestions/case-difference-suggestions.stderr @@ -0,0 +1,99 @@ +error[E0425]: cannot find value `Hello` in this scope + --> $DIR/case-difference-suggestions.rs:5:20 + | +LL | println!("{}", Hello); + | ^^^^^ help: a local variable with a similar name exists: `hello` + +error[E0425]: cannot find value `myvariable` in this scope + --> $DIR/case-difference-suggestions.rs:9:20 + | +LL | println!("{}", myvariable); + | ^^^^^^^^^^ help: a local variable with a similar name exists (notice the capitalization): `myVariable` + +error[E0425]: cannot find value `User_Name` in this scope + --> $DIR/case-difference-suggestions.rs:13:20 + | +LL | println!("{}", User_Name); + | ^^^^^^^^^ help: a local variable with a similar name exists: `user_name` + +error[E0425]: cannot find value `foo` in this scope + --> $DIR/case-difference-suggestions.rs:17:20 + | +LL | println!("{}", foo); + | ^^^ help: a local variable with a similar name exists (notice the capitalization): `FOO` + +error[E0425]: cannot find value `FFOO` in this scope + --> $DIR/case-difference-suggestions.rs:22:20 + | +LL | println!("{}", FFOO); + | ^^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `FFO0` + +error[E0425]: cannot find value `list` in this scope + --> $DIR/case-difference-suggestions.rs:25:20 + | +LL | println!("{}", list); + | ^^^^ help: a local variable with a similar name exists: `l1st` + +error[E0425]: cannot find value `SS` in this scope + --> $DIR/case-difference-suggestions.rs:28:20 + | +LL | println!("{}", SS); + | ^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `S5` + +error[E0425]: cannot find value `a55` in this scope + --> $DIR/case-difference-suggestions.rs:31:20 + | +LL | println!("{}", a55); + | ^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `aS5` + +error[E0425]: cannot find value `BB` in this scope + --> $DIR/case-difference-suggestions.rs:34:20 + | +LL | println!("{}", BB); + | ^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `B8` + +error[E0425]: cannot find value `gg` in this scope + --> $DIR/case-difference-suggestions.rs:37:20 + | +LL | println!("{}", gg); + | ^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `g9` + +error[E0425]: cannot find value `old` in this scope + --> $DIR/case-difference-suggestions.rs:40:20 + | +LL | println!("{}", old); + | ^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `o1d` + +error[E0425]: cannot find value `newl` in this scope + --> $DIR/case-difference-suggestions.rs:43:20 + | +LL | println!("{}", newl); + | ^^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `new1` + +error[E0425]: cannot find value `app1e` in this scope + --> $DIR/case-difference-suggestions.rs:46:20 + | +LL | println!("{}", app1e); + | ^^^^^ help: a local variable with a similar name exists (notice the digit/letter confusion): `apple` + +error[E0425]: cannot find value `A` in this scope + --> $DIR/case-difference-suggestions.rs:49:20 + | +LL | println!("{}", A); + | ^ help: a local variable with a similar name exists: `a` + +error[E0425]: cannot find value `world1U` in this scope + --> $DIR/case-difference-suggestions.rs:52:20 + | +LL | println!("{}", world1U); + | ^^^^^^^ help: a local variable with a similar name exists (notice the capitalization and digit/letter confusion): `worldlu` + +error[E0425]: cannot find value `myv4r1able` in this scope + --> $DIR/case-difference-suggestions.rs:55:20 + | +LL | println!("{}", myv4r1able); + | ^^^^^^^^^^ help: a local variable with a similar name exists (notice the capitalization and digit/letter confusion): `myV4rlable` + +error: aborting due to 16 previous errors + +For more information about this error, try `rustc --explain E0425`. diff --git a/tests/ui/suggestions/incorrect-variant-literal.svg b/tests/ui/suggestions/incorrect-variant-literal.svg index 279fd30f2165c..2cab1f4b60f64 100644 --- a/tests/ui/suggestions/incorrect-variant-literal.svg +++ b/tests/ui/suggestions/incorrect-variant-literal.svg @@ -455,7 +455,7 @@ | - help: there is a variant with a similar name (notice the capitalization difference) + help: there is a variant with a similar name (notice the capitalization) |