Avoid extra allocations when reading (#66)

* avoid extra allocations when reading

* Bump version to 2.1.6

Author: nhz2

Project.toml

@@ -1,7 +1,7 @@
 name = "ZipArchives"
 uuid = "49080126-0e18-4c2a-b176-c102e4b3760c"
 authors = ["nhz2 <[email protected]>"]
-version = "2.1.5"
+version = "2.1.6"
 
 [deps]
 ArgCheck = "dce04be8-c92d-5529-be00-80e4d2c0e197"

src/reader.jl

@@ -35,12 +35,10 @@ function zip_crc32(data::AbstractVector{UInt8}, crc::UInt32=UInt32(0))::UInt32
     zip_crc32(collect(data), crc)
 end
 
-# Copied from ZipFile.jl
-readle(io::IO, ::Type{UInt64}) = htol(read(io, UInt64))
-readle(io::IO, ::Type{UInt32}) = htol(read(io, UInt32))
-readle(io::IO, ::Type{UInt16}) = htol(read(io, UInt16))
-readle(io::IO, ::Type{UInt8}) = read(io, UInt8)
-
+@inline readle(io::IO, ::Type{UInt64}) = UInt64(readle(io, UInt32)) | UInt64(readle(io, UInt32))<<32
+@inline readle(io::IO, ::Type{UInt32}) = UInt32(readle(io, UInt16)) | UInt32(readle(io, UInt16))<<16
+@inline readle(io::IO, ::Type{UInt16}) = UInt16(read(io, UInt8)) | UInt16(read(io, UInt8))<<8
+@inline readle(io::IO, ::Type{UInt8}) = read(io, UInt8)
 
 #=
 Return the minimum size of a local header for an entry.