mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2025-11-23 13:42:57 -06:00
Grand test fixup (#138)
* start fixing up tests * fix up tests + automate with drone * fiddle with linting * messing about with drone.yml * some more fiddling * hmmm * add cache * add vendor directory * verbose * ci updates * update some little things * update sig
This commit is contained in:
Tobi Smethurst
GitHub
parent
329a5e8144
commit
98263a7de6
2677 changed files with 1090869 additions and 219 deletions
397
vendor/github.com/vmihailenco/bufpool/buffer.go
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vendored
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397
vendor/github.com/vmihailenco/bufpool/buffer.go
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@ -0,0 +1,397 @@
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// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package bufpool
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// Simple byte buffer for marshaling data.
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import (
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"bytes"
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"errors"
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"io"
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"unicode/utf8"
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)
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// smallBufferSize is an initial allocation minimal capacity.
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const smallBufferSize = 64
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// A Buffer is a variable-sized buffer of bytes with Read and Write methods.
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// The zero value for Buffer is an empty buffer ready to use.
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type Buffer struct {
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buf []byte // contents are the bytes buf[off : len(buf)]
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off int // read at &buf[off], write at &buf[len(buf)]
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lastRead readOp // last read operation, so that Unread* can work correctly.
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}
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// The readOp constants describe the last action performed on
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// the buffer, so that UnreadRune and UnreadByte can check for
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// invalid usage. opReadRuneX constants are chosen such that
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// converted to int they correspond to the rune size that was read.
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type readOp int8
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// Don't use iota for these, as the values need to correspond with the
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// names and comments, which is easier to see when being explicit.
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const (
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opRead readOp = -1 // Any other read operation.
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opInvalid readOp = 0 // Non-read operation.
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opReadRune1 readOp = 1 // Read rune of size 1.
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)
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var errNegativeRead = errors.New("bytes.Buffer: reader returned negative count from Read")
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const maxInt = int(^uint(0) >> 1)
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// Bytes returns a slice of length b.Len() holding the unread portion of the buffer.
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// The slice is valid for use only until the next buffer modification (that is,
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// only until the next call to a method like Read, Write, Reset, or Truncate).
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// The slice aliases the buffer content at least until the next buffer modification,
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// so immediate changes to the slice will affect the result of future reads.
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func (b *Buffer) Bytes() []byte { return b.buf[b.off:] }
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// String returns the contents of the unread portion of the buffer
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// as a string. If the Buffer is a nil pointer, it returns "<nil>".
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//
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// To build strings more efficiently, see the strings.Builder type.
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func (b *Buffer) String() string {
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if b == nil {
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// Special case, useful in debugging.
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return "<nil>"
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}
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return string(b.buf[b.off:])
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}
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// empty reports whether the unread portion of the buffer is empty.
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func (b *Buffer) empty() bool { return len(b.buf) <= b.off }
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// Len returns the number of bytes of the unread portion of the buffer;
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// b.Len() == len(b.Bytes()).
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func (b *Buffer) Len() int { return len(b.buf) - b.off }
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// Cap returns the capacity of the buffer's underlying byte slice, that is, the
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// total space allocated for the buffer's data.
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func (b *Buffer) Cap() int { return cap(b.buf) }
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// Truncate discards all but the first n unread bytes from the buffer
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// but continues to use the same allocated storage.
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// It panics if n is negative or greater than the length of the buffer.
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func (b *Buffer) Truncate(n int) {
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if n == 0 {
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b.Reset()
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return
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}
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b.lastRead = opInvalid
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if n < 0 || n > b.Len() {
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panic("bytes.Buffer: truncation out of range")
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}
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b.buf = b.buf[:b.off+n]
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}
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// tryGrowByReslice is a inlineable version of grow for the fast-case where the
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// internal buffer only needs to be resliced.
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// It returns the index where bytes should be written and whether it succeeded.
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func (b *Buffer) tryGrowByReslice(n int) (int, bool) {
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if l := len(b.buf); n <= cap(b.buf)-l {
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b.buf = b.buf[:l+n]
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return l, true
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}
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return 0, false
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}
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// Grow grows the buffer's capacity, if necessary, to guarantee space for
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// another n bytes. After Grow(n), at least n bytes can be written to the
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// buffer without another allocation.
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// If n is negative, Grow will panic.
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// If the buffer can't grow it will panic with ErrTooLarge.
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func (b *Buffer) Grow(n int) {
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if n < 0 {
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panic("bytes.Buffer.Grow: negative count")
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}
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m := b.grow(n)
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b.buf = b.buf[:m]
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}
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// Write appends the contents of p to the buffer, growing the buffer as
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// needed. The return value n is the length of p; err is always nil. If the
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// buffer becomes too large, Write will panic with ErrTooLarge.
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func (b *Buffer) Write(p []byte) (n int, err error) {
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b.lastRead = opInvalid
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m, ok := b.tryGrowByReslice(len(p))
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if !ok {
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m = b.grow(len(p))
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}
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return copy(b.buf[m:], p), nil
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}
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// WriteString appends the contents of s to the buffer, growing the buffer as
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// needed. The return value n is the length of s; err is always nil. If the
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// buffer becomes too large, WriteString will panic with ErrTooLarge.
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func (b *Buffer) WriteString(s string) (n int, err error) {
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b.lastRead = opInvalid
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m, ok := b.tryGrowByReslice(len(s))
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if !ok {
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m = b.grow(len(s))
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}
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return copy(b.buf[m:], s), nil
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}
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// MinRead is the minimum slice size passed to a Read call by
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// Buffer.ReadFrom. As long as the Buffer has at least MinRead bytes beyond
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// what is required to hold the contents of r, ReadFrom will not grow the
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// underlying buffer.
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const minRead = 512
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// ReadFrom reads data from r until EOF and appends it to the buffer, growing
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// the buffer as needed. The return value n is the number of bytes read. Any
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// error except io.EOF encountered during the read is also returned. If the
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// buffer becomes too large, ReadFrom will panic with ErrTooLarge.
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func (b *Buffer) ReadFrom(r io.Reader) (n int64, err error) {
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b.lastRead = opInvalid
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for {
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i := b.grow(minRead)
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b.buf = b.buf[:i]
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m, e := r.Read(b.buf[i:cap(b.buf)])
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if m < 0 {
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panic(errNegativeRead)
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}
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b.buf = b.buf[:i+m]
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n += int64(m)
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if e == io.EOF {
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return n, nil // e is EOF, so return nil explicitly
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}
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if e != nil {
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return n, e
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}
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}
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}
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// WriteTo writes data to w until the buffer is drained or an error occurs.
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// The return value n is the number of bytes written; it always fits into an
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// int, but it is int64 to match the io.WriterTo interface. Any error
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// encountered during the write is also returned.
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func (b *Buffer) WriteTo(w io.Writer) (n int64, err error) {
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b.lastRead = opInvalid
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if nBytes := b.Len(); nBytes > 0 {
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m, e := w.Write(b.buf[b.off:])
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if m > nBytes {
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panic("bytes.Buffer.WriteTo: invalid Write count")
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}
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b.off += m
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n = int64(m)
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if e != nil {
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return n, e
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}
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// all bytes should have been written, by definition of
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// Write method in io.Writer
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if m != nBytes {
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return n, io.ErrShortWrite
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}
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}
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// Buffer is now empty; reset.
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b.Reset()
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return n, nil
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}
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// WriteByte appends the byte c to the buffer, growing the buffer as needed.
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// The returned error is always nil, but is included to match bufio.Writer's
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// WriteByte. If the buffer becomes too large, WriteByte will panic with
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// ErrTooLarge.
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func (b *Buffer) WriteByte(c byte) error {
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b.lastRead = opInvalid
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m, ok := b.tryGrowByReslice(1)
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if !ok {
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m = b.grow(1)
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}
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b.buf[m] = c
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return nil
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}
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// WriteRune appends the UTF-8 encoding of Unicode code point r to the
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// buffer, returning its length and an error, which is always nil but is
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// included to match bufio.Writer's WriteRune. The buffer is grown as needed;
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// if it becomes too large, WriteRune will panic with ErrTooLarge.
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func (b *Buffer) WriteRune(r rune) (n int, err error) {
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if r < utf8.RuneSelf {
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_ = b.WriteByte(byte(r))
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return 1, nil
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}
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b.lastRead = opInvalid
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m, ok := b.tryGrowByReslice(utf8.UTFMax)
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if !ok {
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m = b.grow(utf8.UTFMax)
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}
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n = utf8.EncodeRune(b.buf[m:m+utf8.UTFMax], r)
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b.buf = b.buf[:m+n]
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return n, nil
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}
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// Read reads the next len(p) bytes from the buffer or until the buffer
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// is drained. The return value n is the number of bytes read. If the
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// buffer has no data to return, err is io.EOF (unless len(p) is zero);
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// otherwise it is nil.
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func (b *Buffer) Read(p []byte) (n int, err error) {
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b.lastRead = opInvalid
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if b.empty() {
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// Buffer is empty, reset to recover space.
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b.Reset()
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if len(p) == 0 {
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return 0, nil
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}
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return 0, io.EOF
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}
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n = copy(p, b.buf[b.off:])
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b.off += n
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if n > 0 {
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b.lastRead = opRead
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}
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return n, nil
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}
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// Next returns a slice containing the next n bytes from the buffer,
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// advancing the buffer as if the bytes had been returned by Read.
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// If there are fewer than n bytes in the buffer, Next returns the entire buffer.
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// The slice is only valid until the next call to a read or write method.
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func (b *Buffer) Next(n int) []byte {
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b.lastRead = opInvalid
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m := b.Len()
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if n > m {
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n = m
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}
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data := b.buf[b.off : b.off+n]
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b.off += n
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if n > 0 {
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b.lastRead = opRead
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}
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return data
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}
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// ReadByte reads and returns the next byte from the buffer.
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// If no byte is available, it returns error io.EOF.
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func (b *Buffer) ReadByte() (byte, error) {
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if b.empty() {
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// Buffer is empty, reset to recover space.
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b.Reset()
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return 0, io.EOF
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}
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c := b.buf[b.off]
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b.off++
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b.lastRead = opRead
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return c, nil
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}
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// ReadRune reads and returns the next UTF-8-encoded
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// Unicode code point from the buffer.
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// If no bytes are available, the error returned is io.EOF.
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// If the bytes are an erroneous UTF-8 encoding, it
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// consumes one byte and returns U+FFFD, 1.
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func (b *Buffer) ReadRune() (r rune, size int, err error) {
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if b.empty() {
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// Buffer is empty, reset to recover space.
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b.Reset()
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return 0, 0, io.EOF
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}
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c := b.buf[b.off]
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if c < utf8.RuneSelf {
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b.off++
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b.lastRead = opReadRune1
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return rune(c), 1, nil
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}
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r, n := utf8.DecodeRune(b.buf[b.off:])
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b.off += n
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b.lastRead = readOp(n)
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return r, n, nil
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}
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// UnreadRune unreads the last rune returned by ReadRune.
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// If the most recent read or write operation on the buffer was
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// not a successful ReadRune, UnreadRune returns an error. (In this regard
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// it is stricter than UnreadByte, which will unread the last byte
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// from any read operation.)
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func (b *Buffer) UnreadRune() error {
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if b.lastRead <= opInvalid {
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return errors.New("bytes.Buffer: UnreadRune: previous operation was not a successful ReadRune")
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}
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if b.off >= int(b.lastRead) {
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b.off -= int(b.lastRead)
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}
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b.lastRead = opInvalid
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return nil
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}
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var errUnreadByte = errors.New("bytes.Buffer: UnreadByte: previous operation was not a successful read")
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// UnreadByte unreads the last byte returned by the most recent successful
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// read operation that read at least one byte. If a write has happened since
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// the last read, if the last read returned an error, or if the read read zero
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// bytes, UnreadByte returns an error.
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func (b *Buffer) UnreadByte() error {
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if b.lastRead == opInvalid {
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return errUnreadByte
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}
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b.lastRead = opInvalid
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if b.off > 0 {
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b.off--
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}
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return nil
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}
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// ReadBytes reads until the first occurrence of delim in the input,
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// returning a slice containing the data up to and including the delimiter.
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// If ReadBytes encounters an error before finding a delimiter,
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// it returns the data read before the error and the error itself (often io.EOF).
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// ReadBytes returns err != nil if and only if the returned data does not end in
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// delim.
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func (b *Buffer) ReadBytes(delim byte) (line []byte, err error) {
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slice, err := b.readSlice(delim)
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// return a copy of slice. The buffer's backing array may
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// be overwritten by later calls.
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line = append(line, slice...)
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return line, err
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}
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// readSlice is like ReadBytes but returns a reference to internal buffer data.
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func (b *Buffer) readSlice(delim byte) (line []byte, err error) {
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i := bytes.IndexByte(b.buf[b.off:], delim)
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end := b.off + i + 1
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if i < 0 {
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end = len(b.buf)
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err = io.EOF
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}
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line = b.buf[b.off:end]
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b.off = end
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b.lastRead = opRead
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return line, err
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}
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// ReadString reads until the first occurrence of delim in the input,
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// returning a string containing the data up to and including the delimiter.
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// If ReadString encounters an error before finding a delimiter,
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// it returns the data read before the error and the error itself (often io.EOF).
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// ReadString returns err != nil if and only if the returned data does not end
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// in delim.
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func (b *Buffer) ReadString(delim byte) (line string, err error) {
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slice, err := b.readSlice(delim)
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return string(slice), err
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}
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// NewBuffer creates and initializes a new Buffer using buf as its
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// initial contents. The new Buffer takes ownership of buf, and the
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// caller should not use buf after this call. NewBuffer is intended to
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// prepare a Buffer to read existing data. It can also be used to set
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// the initial size of the internal buffer for writing. To do that,
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// buf should have the desired capacity but a length of zero.
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//
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// In most cases, new(Buffer) (or just declaring a Buffer variable) is
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// sufficient to initialize a Buffer.
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func NewBuffer(buf []byte) *Buffer { return &Buffer{buf: buf} }
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// NewBufferString creates and initializes a new Buffer using string s as its
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// initial contents. It is intended to prepare a buffer to read an existing
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// string.
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//
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// In most cases, new(Buffer) (or just declaring a Buffer variable) is
|
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// sufficient to initialize a Buffer.
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func NewBufferString(s string) *Buffer {
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return &Buffer{buf: []byte(s)}
|
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}
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