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-Explanation: You can combine records if they don't share any fields in common,
-like this:
-
-
- ┌───────────────────────────────────────────┐
- │ { foo = 1, bar = "ABC" } ∧ { baz = True } │
- └───────────────────────────────────────────┘
-
-
- ┌────────────────────────────────────────┐
- │ λ(r : { baz : Bool}) → { foo = 1 } ∧ r │
- └────────────────────────────────────────┘
-
-
-... but you cannot merge two records that share the same field
-
-For example, the following expression is $_NOT valid:
-
-
- ┌───────────────────────────────────────────┐
- │ { foo = 1, bar = "ABC" } ∧ { foo = True } │ Invalid: Colliding ❰foo❱ fields
- └───────────────────────────────────────────┘
-
-
-You combined two records that share the following field:
-
-↳ $txt0
-
-... which is not allowed
-
-Some common reasons why you might get this error:
-
-● You tried to use ❰∧❱ to update a field's value, like this:
-
-
- ┌────────────────────────────────────────┐
- │ { foo = 1, bar = "ABC" } ∧ { foo = 2 } │
- └────────────────────────────────────────┘
- ⇧
- Invalid attempt to update ❰foo❱'s value to ❰2❱
-
- Field updates are intentionally not allowed as the Dhall language discourages
- patch-oriented programming