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| author | Mazdak Farrokhzad <twingoow@gmail.com> | 2020-03-07 09:41:12 +0100 |
|---|---|---|
| committer | Mazdak Farrokhzad <twingoow@gmail.com> | 2020-03-10 08:35:23 +0100 |
| commit | 65b7ba5129bf1f32be78379255c921c08126c97f (patch) | |
| tree | 529952e9eb3241498c453980c8b73967ea13d7fa | |
| parent | 83be689b947d391360a965660cba0f3baf1c062e (diff) | |
| download | rust-65b7ba5129bf1f32be78379255c921c08126c97f.tar.gz rust-65b7ba5129bf1f32be78379255c921c08126c97f.zip | |
parser: add note for `'label expr`.
| -rw-r--r-- | src/librustc_parse/parser/expr.rs | 1 | ||||
| -rw-r--r-- | src/test/ui/parser/labeled-no-colon-expr.stderr | 12 |
2 files changed, 13 insertions, 0 deletions
diff --git a/src/librustc_parse/parser/expr.rs b/src/librustc_parse/parser/expr.rs index bab6a58296d..826213ba450 100644 --- a/src/librustc_parse/parser/expr.rs +++ b/src/librustc_parse/parser/expr.rs @@ -1121,6 +1121,7 @@ impl<'a> Parser<'a> { ": ".to_string(), Applicability::MachineApplicable, ) + .note("labels are used before loops and blocks, allowing e.g., `break 'label` to them") .emit(); } diff --git a/src/test/ui/parser/labeled-no-colon-expr.stderr b/src/test/ui/parser/labeled-no-colon-expr.stderr index a69532555d4..4f5e8f78aa0 100644 --- a/src/test/ui/parser/labeled-no-colon-expr.stderr +++ b/src/test/ui/parser/labeled-no-colon-expr.stderr @@ -6,6 +6,8 @@ LL | 'l0 while false {} | | | | | help: add `:` after the label | the label + | + = note: labels are used before loops and blocks, allowing e.g., `break 'label` to them error: labeled expression must be followed by `:` --> $DIR/labeled-no-colon-expr.rs:5:5 @@ -15,6 +17,8 @@ LL | 'l1 for _ in 0..1 {} | | | | | help: add `:` after the label | the label + | + = note: labels are used before loops and blocks, allowing e.g., `break 'label` to them error: labeled expression must be followed by `:` --> $DIR/labeled-no-colon-expr.rs:6:5 @@ -24,6 +28,8 @@ LL | 'l2 loop {} | | | | | help: add `:` after the label | the label + | + = note: labels are used before loops and blocks, allowing e.g., `break 'label` to them error: labeled expression must be followed by `:` --> $DIR/labeled-no-colon-expr.rs:7:5 @@ -33,6 +39,8 @@ LL | 'l3 {} | | | | | help: add `:` after the label | the label + | + = note: labels are used before loops and blocks, allowing e.g., `break 'label` to them error: expected `while`, `for`, `loop` or `{` after a label --> $DIR/labeled-no-colon-expr.rs:8:9 @@ -48,6 +56,8 @@ LL | 'l4 0; | | | | | help: add `:` after the label | the label + | + = note: labels are used before loops and blocks, allowing e.g., `break 'label` to them error: cannot use a `block` macro fragment here --> $DIR/labeled-no-colon-expr.rs:13:17 @@ -72,6 +82,8 @@ LL | 'l5 $b; ... LL | m!({}); | ^^ + | + = note: labels are used before loops and blocks, allowing e.g., `break 'label` to them error: aborting due to 8 previous errors |