[librsvg: 1/3] Swap SmallVec for TinyVec

[Federico Mena Quintero <federico src gnome org>]

commit bee0d172aff8ade667a2b0c8c7fadb2922599c9f
Author: Sergey "Shnatsel" Davidoff <sdavydov google com>
Date:   Sat Mar 28 21:17:47 2020 +0100

    Swap SmallVec for TinyVec

 Cargo.lock                         |  8 +++++++-
 rsvg_internals/Cargo.toml          |  2 +-
 rsvg_internals/src/path_builder.rs | 12 +++++++++---
 3 files changed, 17 insertions(+), 5 deletions(-)
---
diff --git a/Cargo.lock b/Cargo.lock
index f1dd3655..882ef61c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1366,7 +1366,7 @@ dependencies = [
  "rctree 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "regex 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)",
  "selectors 0.22.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "smallvec 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "tinyvec 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "url 2.1.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "xml-rs 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -1582,6 +1582,11 @@ dependencies = [
  "serde_json 1.0.47 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
+[[package]]
+name = "tinyvec"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index";
+
 [[package]]
 name = "treeline"
 version = "0.1.0"
@@ -1855,6 +1860,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index";
 "checksum thread_local 1.0.1 (registry+https://github.com/rust-lang/crates.io-index)" = 
"d40c6d1b69745a6ec6fb1ca717914848da4b44ae29d9b3080cbee91d72a69b14"
 "checksum time 0.1.42 (registry+https://github.com/rust-lang/crates.io-index)" = 
"db8dcfca086c1143c9270ac42a2bbd8a7ee477b78ac8e45b19abfb0cbede4b6f"
 "checksum tinytemplate 1.0.3 (registry+https://github.com/rust-lang/crates.io-index)" = 
"57a3c6667d3e65eb1bc3aed6fd14011c6cbc3a0665218ab7f5daf040b9ec371a"
+"checksum tinyvec 0.3.3 (registry+https://github.com/rust-lang/crates.io-index)" = 
"53953d2d3a5ad81d9f844a32f14ebb121f50b650cd59d0ee2a07cf13c617efed"
 "checksum treeline 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = 
"a7f741b240f1a48843f9b8e0444fb55fb2a4ff67293b50a9179dfd5ea67f8d41"
 "checksum typenum 1.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = 
"6d2783fe2d6b8c1101136184eb41be8b1ad379e4657050b8aaff0c79ee7575f9"
 "checksum unicode-bidi 0.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = 
"49f2bd0c6468a8230e1db229cff8029217cf623c767ea5d60bfbd42729ea54d5"
diff --git a/rsvg_internals/Cargo.toml b/rsvg_internals/Cargo.toml
index 6943e443..aba6a5c8 100644
--- a/rsvg_internals/Cargo.toml
+++ b/rsvg_internals/Cargo.toml
@@ -35,7 +35,7 @@ rayon = "1"
 rctree = "0.3.3"
 regex = "1"
 selectors = "0.22.0"
-smallvec = "1.2.0"
+tinyvec = {version = "0.3.2", features = ["alloc"]}
 url = "2"
 xml-rs = "0.8.0"
 
diff --git a/rsvg_internals/src/path_builder.rs b/rsvg_internals/src/path_builder.rs
index 464e5a94..2a56d66a 100644
--- a/rsvg_internals/src/path_builder.rs
+++ b/rsvg_internals/src/path_builder.rs
@@ -1,6 +1,6 @@
 //! Representation of Bézier paths.
 
-use smallvec::SmallVec;
+use tinyvec::TinyVec;
 
 use std::f64;
 use std::f64::consts::*;
@@ -332,6 +332,12 @@ pub enum PathCommand {
     ClosePath,
 }
 
+impl Default for PathCommand {
+    fn default() -> Self {
+        PathCommand::ClosePath
+    }
+}
+
 impl PathCommand {
     fn to_cairo(&self, cr: &cairo::Context) {
         match *self {
@@ -427,7 +433,7 @@ impl PathCommand {
 /// a `Path` with `into_path`.
 #[derive(Clone)]
 pub struct PathBuilder {
-    path_commands: SmallVec<[PathCommand; 32]>,
+    path_commands: TinyVec<[PathCommand; 32]>,
 }
 
 /// An immutable path with a compact representation.
@@ -471,7 +477,7 @@ enum PackedCommand {
 impl PathBuilder {
     pub fn new() -> PathBuilder {
         PathBuilder {
-            path_commands: SmallVec::new(),
+            path_commands: TinyVec::new(),
         }
     }