Update brotli decompressor crates and fix #91

Author: danielrh

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "brotli"
-version = "3.3.4"
+version = "3.4.0"
 authors = ["Daniel Reiter Horn <[email protected]>", "The Brotli Authors"]
 description = "A brotli compressor and decompressor that with an interface avoiding the rust stdlib. This makes it suitable for embedded devices and kernels. It is designed with a pluggable allocator so that the standard lib's allocator may be employed. The default build also includes a stdlib allocator and stream interface. Disable this with --features=no-stdlib. All included code is safe."
 license = "BSD-3-Clause/MIT"
@@ -27,9 +27,9 @@ incremental=false
 
 [dependencies]
 "alloc-no-stdlib" = {version="2.0"}
-"brotli-decompressor" = {version="~2.3", default-features=false}
+"brotli-decompressor" = {version="~2.5", default-features=false}
 "alloc-stdlib" = {version="~0.2", optional=true}
-"packed_simd_2" = {version="0.3", optional=true}
+# Uncomment once this packed_simd "packed_simd_2" = {version="0.3", optional=true}
 "sha2" = {version="~0.10", optional=true}
 
 [features]
@@ -41,6 +41,6 @@ external-literal-probability = []
 disable-timer = ["brotli-decompressor/disable-timer"]
 benchmark = ["brotli-decompressor/benchmark"]
 vector_scratch_space = []
-simd = ["packed_simd_2/into_bits"]
+#simd = ["packed_simd_2/into_bits"]
 pass-through-ffi-panics = []
 ffi-api = []

README.md

@@ -3,6 +3,9 @@
 [![crates.io](https://img.shields.io/crates/v/brotli.svg)](https://crates.io/crates/brotli)
 [![Build Status](https://travis-ci.org/dropbox/rust-brotli.svg?branch=master)](https://travis-ci.org/dropbox/rust-brotli)
 
+## What's new in 3.4
+Brotli decompressor's reader and writer has better behavior when operating upon brotli streams with extra bits at the end.
+Optional features like stdsimd are now tested or disabled for now.
 
 ## What's new in 3.2
 * into_inner conversions for both Reader and Writer classes

src/enc/encode.rs

@@ -1161,7 +1161,7 @@ pub fn HasherSetup<Alloc:alloc::Allocator<u16> + alloc::Allocator<u32>>(m16: &mu
       HowPrepared::ALREADY_PREPARED => {}
       HowPrepared::NEWLY_PREPARED => {
         if position == 0usize {
-          let mut common = handle.GetHasherCommon();
+          let common = handle.GetHasherCommon();
           (*common).dict_num_lookups = 0usize;
           (*common).dict_num_matches = 0usize;
         }