Merge pull request #80 from fizyk20/more_lens

Implement more lengths for `From`/`Into` behind a feature-flag

.travis.yml

@@ -3,12 +3,12 @@ script:
   - cd $TRAVIS_BUILD_DIR
   - cargo build
   - cargo test
-  - cargo build --features serde
-  - cargo test --features serde
+  - cargo build --all-features
+  - cargo test --all-features
 after_success: |-
   [ $TRAVIS_BRANCH = master ] &&
   [ $TRAVIS_PULL_REQUEST = false ] &&
-  cargo doc &&
+  cargo doc --all-features &&
   echo "<meta http-equiv=refresh content=0;url=`echo $TRAVIS_REPO_SLUG | cut -d '/' -f 2`/index.html>" > target/doc/index.html &&
   sudo pip install ghp-import &&
   ghp-import -n target/doc &&

CHANGELOG.md

@@ -1,3 +1,6 @@
+* **`0.13.2`**
+    * Add feature `more_lengths`, which adds more `From`/`Into` implementations for arrays of various lengths.
+
 * **`0.13.1`**
     * Mark `GenericArray` as `#[repr(transparent)]`
     * Implement `Into<[T; N]>` for `GenericArray<T, N>` up to N=32

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "generic-array"
-version = "0.13.1"
+version = "0.13.2"
 authors = [ "Bartłomiej Kamiński <fizyk20@gmail.com>", "Aaron Trent <novacrazy@gmail.com>" ]
 
 description = "Generic types implementing functionality of arrays"
@@ -21,6 +21,9 @@ travis-ci = { repository = "fizyk20/generic-array" }
 [lib]
 name = "generic_array"
 
+[features]
+more_lengths = []
+
 [dependencies]
 typenum = "1.10"
 serde = { version = "1.0", optional = true, default-features = false }

src/impls.rs

@@ -177,3 +177,56 @@ impl_from! {
     31 => ::typenum::U31,
     32 => ::typenum::U32
 }
+
+#[cfg(feature = "more_lengths")]
+impl_from! {
+    33 => ::typenum::U33,
+    34 => ::typenum::U34,
+    35 => ::typenum::U35,
+    36 => ::typenum::U36,
+    37 => ::typenum::U37,
+    38 => ::typenum::U38,
+    39 => ::typenum::U39,
+    40 => ::typenum::U40,
+    41 => ::typenum::U41,
+    42 => ::typenum::U42,
+    43 => ::typenum::U43,
+    44 => ::typenum::U44,
+    45 => ::typenum::U45,
+    46 => ::typenum::U46,
+    47 => ::typenum::U47,
+    48 => ::typenum::U48,
+    49 => ::typenum::U49,
+    50 => ::typenum::U50,
+    51 => ::typenum::U51,
+    52 => ::typenum::U52,
+    53 => ::typenum::U53,
+    54 => ::typenum::U54,
+    55 => ::typenum::U55,
+    56 => ::typenum::U56,
+    57 => ::typenum::U57,
+    58 => ::typenum::U58,
+    59 => ::typenum::U59,
+    60 => ::typenum::U60,
+    61 => ::typenum::U61,
+    62 => ::typenum::U62,
+    63 => ::typenum::U63,
+    64 => ::typenum::U64,
+
+    70 => ::typenum::U70,
+    80 => ::typenum::U80,
+    90 => ::typenum::U90,
+
+    100 => ::typenum::U100,
+    200 => ::typenum::U200,
+    300 => ::typenum::U300,
+    400 => ::typenum::U400,
+    500 => ::typenum::U500,
+
+    128 => ::typenum::U128,
+    256 => ::typenum::U256,
+    512 => ::typenum::U512,
+
+    1000 => ::typenum::U1000,
+    1024 => ::typenum::U1024
+}

src/lib.rs

@@ -51,7 +51,7 @@ mod hex;
 mod impls;
 
 #[cfg(feature = "serde")]
-pub mod impl_serde;
+mod impl_serde;
 
 use core::iter::FromIterator;
 use core::marker::PhantomData;