diff options
| author | eldritch horrors <pennae@lix.systems> | 2024-03-08 04:49:08 +0100 |
|---|---|---|
| committer | eldritch horrors <pennae@lix.systems> | 2024-03-09 00:05:41 -0700 |
| commit | 87e6ac5eb706593d15d29b070eac5f05e305a787 (patch) | |
| tree | 79062f2ab0e8a298de9b68419fa4094994e26e22 /doc | |
| parent | 896e525681bbf696c330af4e51c5e161d3818350 (diff) | |
Merge pull request #9753 from 9999years/print-value-on-type-error
Print the value in `value is X while a Y is expected` error
(cherry picked from commit 5f72a97092da6af28a7d2b2a50d74e9d34fae7e1)
Change-Id: Idb4bc903ae59a0f5b6fb3b1da4d47970fe0a6efe
Diffstat (limited to 'doc')
| -rw-r--r-- | doc/manual/rl-next/print-value-in-type-error.md | 23 | ||||
| -rw-r--r-- | doc/manual/rl-next/source-positions-in-errors.md | 2 | ||||
| -rw-r--r-- | doc/manual/rl-next/with-error-reporting.md | 4 |
3 files changed, 26 insertions, 3 deletions
diff --git a/doc/manual/rl-next/print-value-in-type-error.md b/doc/manual/rl-next/print-value-in-type-error.md new file mode 100644 index 000000000..aaae22756 --- /dev/null +++ b/doc/manual/rl-next/print-value-in-type-error.md @@ -0,0 +1,23 @@ +--- +synopsis: Type errors include the failing value +issues: #561 +prs: #9753 +--- + +In errors like `value is an integer while a list was expected`, the message now +includes the failing value. + +Before: + +``` + error: value is a set while a string was expected +``` + +After: + +``` + error: expected a string but found a set: { ghc810 = «thunk»; + ghc8102Binary = «thunk»; ghc8107 = «thunk»; ghc8107Binary = «thunk»; + ghc865Binary = «thunk»; ghc90 = «thunk»; ghc902 = «thunk»; ghc92 = «thunk»; + ghc924Binary = «thunk»; ghc925 = «thunk»; «17 attributes elided»} +``` diff --git a/doc/manual/rl-next/source-positions-in-errors.md b/doc/manual/rl-next/source-positions-in-errors.md index 5b210289d..1556f8b64 100644 --- a/doc/manual/rl-next/source-positions-in-errors.md +++ b/doc/manual/rl-next/source-positions-in-errors.md @@ -38,5 +38,5 @@ error: | ^ 5| - error: value is a set while a string was expected + error: expected a string but found a set: { } ``` diff --git a/doc/manual/rl-next/with-error-reporting.md b/doc/manual/rl-next/with-error-reporting.md index 10b020956..f6c4a36fe 100644 --- a/doc/manual/rl-next/with-error-reporting.md +++ b/doc/manual/rl-next/with-error-reporting.md @@ -8,7 +8,7 @@ prs: 9658 Previously an incorrect `with` expression would report no position at all, making it hard to determine where the error originated: ``` -nix-repl> with 1; a +nix-repl> with 1; a error: … <borked> @@ -27,5 +27,5 @@ error: 1| with 1; a | ^ - error: value is an integer while a set was expected + error: expected a set but found an integer: 1 ``` |