Joe Tsai e671fe0c3e bytes: add Buffer.Available and Buffer.AvailableBuffer ... This adds a new Buffer.AvailableBuffer method that returns an empty buffer with a possibly non-empty capacity for use with append-like APIs. The typical usage pattern is something like: b := bb.AvailableBuffer() b = appendValue(b, v) bb.Write(b) It allows logic combining append-like APIs with Buffer to avoid needing to allocate and manage buffers themselves and allows the append-like APIs to directly write into the Buffer. The Buffer.Write method uses the builtin copy function, which avoids copying bytes if the source and destination are identical. Thus, Buffer.Write is a constant-time call for this pattern. Performance: BenchmarkBufferAppendNoCopy 2.909 ns/op 5766942167.24 MB/s This benchmark should only be testing the cost of bookkeeping and never the copying of the input slice. Thus, the MB/s should be orders of magnitude faster than RAM. Fixes #53685 Change-Id: I0b41e54361339df309db8d03527689b123f99085 Reviewed-on: https://go-review.googlesource.com/c/go/+/474635 Run-TryBot: Joseph Tsai <joetsai@digital-static.net> Reviewed-by: Daniel Martí <mvdan@mvdan.cc> Reviewed-by: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Auto-Submit: Joseph Tsai <joetsai@digital-static.net> Reviewed-by: Ian Lance Taylor <iant@google.com>		2023-03-13 17:03:14 +00:00
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boundary_test.go	bytes: test for page boundary crosses on sep of Index	2021-11-02 17:31:50 +00:00
buffer.go	bytes: add Buffer.Available and Buffer.AvailableBuffer	2023-03-13 17:03:14 +00:00
buffer_test.go	bytes: add Buffer.Available and Buffer.AvailableBuffer	2023-03-13 17:03:14 +00:00
bytes.go	bytes, strings: avoid unnecessary zero initialization	2023-02-27 19:11:00 +00:00
bytes_test.go	bytes, strings: add ContainsFunc	2023-01-24 22:06:45 +00:00
compare_test.go	internal/bytealg: correct alignment checks for compare/memequal on riscv64	2022-09-19 18:59:50 +00:00
example_test.go	bytes: add Buffer.Available and Buffer.AvailableBuffer	2023-03-13 17:03:14 +00:00
export_test.go	bytes, internal/bytealg: simplify Equal	2019-04-24 00:56:36 +00:00
reader.go	bytes: document that Reader.Reset affects the result of Size	2022-07-26 14:20:34 +00:00
reader_test.go	all: gofmt -w -r 'interface{} -> any' src	2021-12-13 18:45:54 +00:00