From 5cb3ef5b8b31e7090b034f8caf53d8e31c8d5962 Mon Sep 17 00:00:00 2001
From: IkaR49 <IkaR49@users.noreply.github.com>
Date: Tue, 12 May 2020 23:11:28 +0300
Subject: [PATCH] chore(try_from_into): Add comments with task description
(#392)
---
exercises/conversions/try_from_into.rs | 14 +++++++++++++-
1 file changed, 13 insertions(+), 1 deletion(-)
diff --git a/exercises/conversions/try_from_into.rs b/exercises/conversions/try_from_into.rs
index fafa198..757c796 100644
--- a/exercises/conversions/try_from_into.rs
+++ b/exercises/conversions/try_from_into.rs
@@ -13,18 +13,30 @@ struct Color {
// I AM NOT DONE
+// Your task is to complete this implementation
+// and return an Ok result of inner type Color.
+// You need create implementation for a tuple of three integer,
+// an array of three integer and slice of integer.
+//
+// Note, that implementation for tuple and array will be checked at compile-time,
+// but slice implementation need check slice length!
+// Also note, that chunk of correct rgb color must be integer in range 0..=255.
+
+// Tuple implementation
impl TryFrom<(i16, i16, i16)> for Color {
type Error = String;
fn try_from(tuple: (i16, i16, i16)) -> Result<Self, Self::Error> {
}
}
+// Array implementation
impl TryFrom<[i16; 3]> for Color {
type Error = String;
fn try_from(arr: [i16; 3]) -> Result<Self, Self::Error> {
}
}
+// Slice implementation
impl TryFrom<&[i16]> for Color {
type Error = String;
fn try_from(slice: &[i16]) -> Result<Self, Self::Error> {
@@ -44,7 +56,7 @@ fn main() {
// With slice we should use `from` function
let c3 = Color::try_from(&v[..]);
println!("{:?}", c3);
- // or take slice within round brackets
+ // or take slice within round brackets and use Into
let c4: Result<Color, _> = (&v[..]).try_into();
println!("{:?}", c4);
}