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Rename Result.after to Result.try

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Richard Feldman 2022-07-17 17:25:12 -04:00
parent 31f7d72ce0
commit 0acab0eef3
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5 changed files with 39 additions and 39 deletions
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12
crates/compiler/builtins/roc/Result.roc
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@ -1,5 +1,5 @@
interface Result
exposes [Result, isOk, isErr, map, mapErr, after, afterErr, withDefault]
exposes [Result, isOk, isErr, map, mapErr, try, afterErr, withDefault]
imports [Bool.{ Bool }]
## The result of an operation that could fail: either the operation went
@ -72,11 +72,11 @@ mapErr = \result, transform ->
##
## (If the result is `Err`, this has no effect. Use `afterErr` to transform an `Err`.)
##
## >>> Result.after (Ok -1) \num -> if num < 0 then Err "negative!" else Ok -num
## >>> Result.try (Ok -1) \num -> if num < 0 then Err "negative!" else Ok -num
##
## >>> Result.after (Err "yipes!") \num -> if num < 0 then Err "negative!" else Ok -num
after : Result a err, (a -> Result b err) -> Result b err
after = \result, transform ->
## >>> Result.try (Err "yipes!") \num -> if num < 0 then Err "negative!" else Ok -num
try : Result a err, (a -> Result b err) -> Result b err
try = \result, transform ->
when result is
Ok v -> transform v
Err e -> Err e
@ -84,7 +84,7 @@ after = \result, transform ->
## If the result is `Err`, transform the entire result by running a conversion
## function on the value the `Err` holds. Then return that new result.
##
## (If the result is `Ok`, this has no effect. Use `after` to transform an `Ok`.)
## (If the result is `Ok`, this has no effect. Use `try` to transform an `Ok`.)
##
## >>> Result.afterErr (Ok 10) \errorNum -> Str.toNat errorNum
##