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docs(recursion, pattern matching): fix multiple errors of example code #710

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a39bd9a
recursion: fix multiple definition of the type
raptazure Nov 23, 2020
5170a8e
pattern: fix unbound type constructor r
raptazure Nov 23, 2020
b34569f
fix nonrec example that gives a compilation error
raptazure Dec 2, 2020
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12 changes: 6 additions & 6 deletions docs/pattern-matching.md
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Original file line number Diff line number Diff line change
Expand Up @@ -132,15 +132,15 @@ type point = {

type t =
| A((string, int))
| B(r)
| B(point)
| C(array(int))
| D(list(r));
| D(list(point));

let x = D([{x: 2, y: 1.2}]);
let x = D([{x: 2, y: 1}]);

switch (x) {
| A(("hi", num)) => num
| B({x, y: 1.2}) => x
| B({x, y: 1}) => x
| C([|x|]) => x
| C([|2, 3, x|]) => x
| D([]) => 2
Expand All @@ -156,8 +156,8 @@ switch (x) {
```reason
switch (x) {
| A(("hi", num)) as v => f(v)
| B({x: _, y: 1.2} as r) => g(r)
| D([{x: _, y: 1.2} as r, ..._]) => g(r)
| B({x: _, y: 1} as r) => g(r)
| D([{x: _, y: 1} as r, ..._]) => g(r)
| _ => 42
};
```
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6 changes: 4 additions & 2 deletions docs/recursion.md
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Expand Up @@ -76,10 +76,12 @@ Opt-out of recursive types using the `nonrec` keyword:

```reason
type t = string;
type nonrec t = list(t);
module M = {
type nonrec t = list(t);
};

/* t is now list(string) */
let x: t = ["hello", "world"];
let x: M.t = ["Hello", "World"]
```

## Mutually Recursive Types
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