diff options
author | Nadrieril | 2019-05-06 23:17:26 +0200 |
---|---|---|
committer | Nadrieril | 2019-05-06 23:20:47 +0200 |
commit | 60129b7d1c0ea8bdf2ec666fa51957e97465e88f (patch) | |
tree | 2118155537989a1a3bfa6c51b5c476651a0ef93e /dhall/src/errors/HandlerNotAFunction.txt | |
parent | 423fdeebe9247b16744fae4b50df415bbd08be04 (diff) |
Consolidate errors in the error module
Diffstat (limited to 'dhall/src/errors/HandlerNotAFunction.txt')
-rw-r--r-- | dhall/src/errors/HandlerNotAFunction.txt | 32 |
1 files changed, 0 insertions, 32 deletions
diff --git a/dhall/src/errors/HandlerNotAFunction.txt b/dhall/src/errors/HandlerNotAFunction.txt deleted file mode 100644 index ff87443..0000000 --- a/dhall/src/errors/HandlerNotAFunction.txt +++ /dev/null @@ -1,32 +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 │ - └─────────────────────────────────────────────────────────────────────┘ - - -... as long as each handler is a function - -For example, the following expression is $_NOT valid: - - - ┌─────────────────────────────────────────┐ - │ merge { Foo = True } < Foo = 1 > : Bool │ - └─────────────────────────────────────────┘ - ⇧ - Invalid: Not a function - - -Your handler for this alternative: - -↳ $txt0 - -... has the following type: - -↳ $txt1 - -... which is not the type of a function |