Use iota crate

Cargo.lock

@@ -94,6 +94,11 @@ dependencies = [
  "adler32 1.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "iota"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+
 [[package]]
 name = "khronos_api"
 version = "3.1.0"
@@ -193,6 +198,7 @@ dependencies = [
  "byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "gl 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "glam 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)",
+ "iota 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "nom 5.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "png 0.15.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "sdl2 0.32.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -410,6 +416,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum gl_generator 0.14.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1a95dfc23a2b4a9a2f5ab41d194f8bfda3cabec42af4e39f08c339eb2a0c124d"
 "checksum glam 0.8.5 (registry+https://github.com/rust-lang/crates.io-index)" = "bb24d4e1b92ceed0450bbf803ac894b597c5b8d0e16f175f7ef28c42024d8cbd"
 "checksum inflate 0.4.5 (registry+https://github.com/rust-lang/crates.io-index)" = "1cdb29978cc5797bd8dcc8e5bf7de604891df2a8dc576973d71a281e916db2ff"
+"checksum iota 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "3c6015bb2d300661a0014e29025374a32a68e8ef7e4effe547baa00eef38b8e3"
 "checksum khronos_api 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2db585e1d738fc771bf08a151420d3ed193d9d895a36df7f6f8a9456b911ddc"
 "checksum lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 "checksum lexical-core 0.4.6 (registry+https://github.com/rust-lang/crates.io-index)" = "2304bccb228c4b020f3a4835d247df0a02a7c4686098d4167762cfbbe4c5cb14"

Cargo.toml

@@ -13,6 +13,8 @@ byteorder = "1.3.2"
 gl = "0.14.0"
 glam = "0.8.5"
 
+iota = "0.2.1"
+
 # TODO: Drop nom depend. It's way overkill for iqm.
 nom = "5.1.0"
 

src/iqm.rs

@@ -1,3 +1,4 @@
+use iota::iota;
 use nom::{
 	IResult,
 	bytes::complete::{tag},
@@ -7,33 +8,35 @@ use nom::{
 use std::convert::TryInto;
 
 pub mod consts {
-	pub const VERSION: usize           =  0;
-	pub const FILESIZE: usize          =  1;
-	pub const FLAGS: usize             =  2;
-	pub const NUM_TEXT: usize          =  3;
-	pub const OFS_TEXT: usize          =  4;
-	pub const NUM_MESHES: usize        =  5;
-	pub const OFS_MESHES: usize        =  6;
-	pub const NUM_VERTEXARRAYS: usize  =  7;
-	pub const NUM_VERTEXES: usize      =  8;
-	pub const OFS_VERTEXARRAYS: usize  =  9;
-	pub const NUM_TRIANGLES: usize     = 10;
-	pub const OFS_TRIANGLES: usize     = 11;
-	pub const OFS_ADJACENCY: usize     = 12;
-	pub const NUM_JOINTS: usize        = 13;
-	pub const OFS_JOINTS: usize        = 14;
-	pub const NUM_POSES: usize         = 15;
-	pub const OFS_POSES: usize         = 16;
-	pub const NUM_ANIMS: usize         = 17;
-	pub const OFS_ANIMS: usize         = 18;
-	pub const NUM_FRAMES: usize        = 19;
-	pub const NUM_FRAMECHANNELS: usize = 20;
-	pub const OFS_FRAMES: usize        = 21;
-	pub const OFS_BOUNDS: usize        = 22;
-	pub const NUM_COMMENT: usize       = 23;
-	pub const OFS_COMMENT: usize       = 24;
-	pub const NUM_EXTENSIONS: usize    = 25;
-	pub const OFS_EXTENSIONS: usize    = 26;
+iota! {
+	pub const VERSION: usize = iota;
+			, FILESIZE
+			, FLAGS
+			, NUM_TEXT
+			, OFS_TEXT
+			, NUM_MESHES
+			, OFS_MESHES
+			, NUM_VERTEXARRAYS
+			, NUM_VERTEXES
+			, OFS_VERTEXARRAYS
+			, NUM_TRIANGLES
+			, OFS_TRIANGLES
+			, OFS_ADJACENCY
+			, NUM_JOINTS
+			, OFS_JOINTS
+			, NUM_POSES
+			, OFS_POSES
+			, NUM_ANIMS
+			, OFS_ANIMS
+			, NUM_FRAMES
+			, NUM_FRAMECHANNELS
+			, OFS_FRAMES
+			, OFS_BOUNDS
+			, NUM_COMMENT
+			, OFS_COMMENT
+			, NUM_EXTENSIONS
+			, OFS_EXTENSIONS
+}
 }
 
 pub mod types {

src/lib.rs

@@ -1,3 +1,6 @@
+#[macro_use]
+extern crate iota;
+
 pub mod file;
 pub mod glezz;
 pub mod iqm;