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The intention is to keep to repo root clean while the list of packages is slowly growing. Additionally, a bunch of small (~30 LoC) files in the repo root is merged into a single maddy.go file, for the same reason. Most of the internal code is moved into the internal/ directory. Go toolchain will make it impossible to import these packages from external applications. Some packages are renamed and moved into the pkg/ directory in the root. According to https://github.com/golang-standards/project-layout this is the de-facto standard to place "library code that's ok to use by external applications" in. To clearly define the purpose of top-level directories, README.md files are added to each.
48 lines
1.2 KiB
Go
48 lines
1.2 KiB
Go
package buffer
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import (
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"bytes"
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)
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// TODO: Remove this interface from here, it is no longer necessary.
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type Byter interface {
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Bytes() []byte
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}
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// BytesReader is a wrapper for bytes.Reader that stores the original []byte
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// value and allows to retrieve it.
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//
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// It is meant for passing to libraries that expect a io.Reader
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// but apply certain optimizations when the Reader implements
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// Bytes() interface.
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type BytesReader struct {
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*bytes.Reader
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value []byte
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}
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// Bytes returns the unread portion of underlying slice used to construct
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// BytesReader.
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func (br BytesReader) Bytes() []byte {
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return br.value[int(br.Size())-br.Len():]
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}
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// Copy returns the BytesReader reading from the same slice as br at the same
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// position.
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func (br BytesReader) Copy() BytesReader {
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return NewBytesReader(br.Bytes())
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}
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// Close is a dummy method for implementation of io.Closer so BytesReader can
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// be used in MemoryBuffer directly.
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func (br BytesReader) Close() error {
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return nil
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}
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func NewBytesReader(b []byte) BytesReader {
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// BytesReader and not *BytesReader because BytesReader already wraps two
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// pointers and double indirection would be pointless.
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return BytesReader{
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Reader: bytes.NewReader(b),
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value: b,
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}
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}
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