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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 /src/errors/MustMergeUnion.txt | |
parent | 8a2b7536902831079eddd7b00291b718f5dd7186 (diff) |
Split abnf_to_pest and dhall into their own crates
Diffstat (limited to 'src/errors/MustMergeUnion.txt')
-rw-r--r-- | src/errors/MustMergeUnion.txt | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/src/errors/MustMergeUnion.txt b/src/errors/MustMergeUnion.txt deleted file mode 100644 index 68df70c..0000000 --- a/src/errors/MustMergeUnion.txt +++ /dev/null @@ -1,31 +0,0 @@ -Explanation: You can ❰merge❱ the alternatives of a union using a record with one -handler per alternative, like this: - - - ┌─────────────────────────────────────────────────────────────────────┐ - │ let union = < Left = +2 | Right : Bool > │ - │ in let handlers = { Left = Natural/even, Right = λ(x : Bool) → x } │ - │ in merge handlers union : Bool │ - └─────────────────────────────────────────────────────────────────────┘ - - -... but the second argument to ❰merge❱ must be a union and not some other type. - -For example, the following expression is $_NOT valid: - - - ┌──────────────────────────────────────────┐ - │ let handlers = { Foo = λ(x : Bool) → x } │ - │ in merge handlers True : True │ - └──────────────────────────────────────────┘ - ⇧ - Invalid: ❰True❱ isn't a union - - -You tried to ❰merge❱ this expression: - -↳ $txt0 - -... which is not a union, but is actually a value of type: - -↳ $txt1 |