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authorNadrieril2019-05-07 18:12:04 +0200
committerNadrieril2019-05-07 18:12:04 +0200
commit3da450aa3fae23214aa982643b9bc4dd0ea4eaa6 (patch)
tree02e00cd008d2e7dc899b9211379596fe792f41c8 /dhall/src/error/text/MustCombineARecord.txt
parentd8a3e831fb67f86269c4baa99f9f0798a73a7247 (diff)
parent14dfeb8e7d2aa87a361a711a485243449426b144 (diff)
Merge branch 'reorganize'
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+Explanation: You can combine records using the ❰∧❱ operator, like this:
+
+
+ ┌───────────────────────────────────────────┐
+ │ { foo = 1, bar = "ABC" } ∧ { baz = True } │
+ └───────────────────────────────────────────┘
+
+
+ ┌─────────────────────────────────────────────┐
+ │ λ(r : { foo : Bool }) → r ∧ { bar = "ABC" } │
+ └─────────────────────────────────────────────┘
+
+
+... but you cannot combine values that are not records.
+
+For example, the following expressions are $_NOT valid:
+
+
+ ┌──────────────────────────────┐
+ │ { foo = 1, bar = "ABC" } ∧ 1 │
+ └──────────────────────────────┘
+ ⇧
+ Invalid: Not a record
+
+
+ ┌───────────────────────────────────────────┐
+ │ { foo = 1, bar = "ABC" } ∧ { baz : Bool } │
+ └───────────────────────────────────────────┘
+ ⇧
+ Invalid: This is a record type and not a record
+
+
+ ┌───────────────────────────────────────────┐
+ │ { foo = 1, bar = "ABC" } ∧ < baz = True > │
+ └───────────────────────────────────────────┘
+ ⇧
+ Invalid: This is a union and not a record
+
+
+You tried to combine the following value:
+
+↳ $txt0
+
+... which is not a record, but is actually a:
+
+↳ $txt1