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author | Nadrieril | 2019-03-01 17:28:19 +0100 |
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committer | Nadrieril | 2019-03-01 17:28:19 +0100 |
commit | e5d9aee00b0c775df1d8e2d8819aeb80dffa73c2 (patch) | |
tree | e763a24a0d635048232e72e167ca37eafec69369 /dhall/src/errors/InvalidOptionType.txt | |
parent | 8a2b7536902831079eddd7b00291b718f5dd7186 (diff) |
Split abnf_to_pest and dhall into their own crates
Diffstat (limited to 'dhall/src/errors/InvalidOptionType.txt')
-rw-r--r-- | dhall/src/errors/InvalidOptionType.txt | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/dhall/src/errors/InvalidOptionType.txt b/dhall/src/errors/InvalidOptionType.txt new file mode 100644 index 0000000..3bc81de --- /dev/null +++ b/dhall/src/errors/InvalidOptionType.txt @@ -0,0 +1,44 @@ +Explanation: Every optional element ends with a type annotation for the element +that might be present, like this: + + + ┌────────────────────────┐ + │ [1] : Optional Integer │ An optional element that's present + └────────────────────────┘ + ⇧ + The type of the ❰Optional❱ element, which is an ❰Integer❱ + + + ┌────────────────────────┐ + │ [] : Optional Integer │ An optional element that's absent + └────────────────────────┘ + ⇧ + You still specify the type even when the element is absent + + +The element type must be a type and not something else. For example, the +following element types are $_NOT valid: + + + ┌──────────────────┐ + │ ... : Optional 1 │ + └──────────────────┘ + ⇧ + This is an ❰Integer❱ and not a ❰Type❱ + + + ┌─────────────────────┐ + │ ... : Optional Type │ + └─────────────────────┘ + ⇧ + This is a ❰Kind❱ and not a ❰Type❱ + + +Even if the element is absent you still must specify a valid type + +You declared that the ❰Optional❱ element should have type: + +↳ $txt0 + +... which is not a ❰Type❱ + |