forked from jshiffer/matterbridge
33 lines
1.5 KiB
Go
33 lines
1.5 KiB
Go
// Copyright 2022 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// Package pkgbits implements low-level coding abstractions for
|
|
// Unified IR's export data format.
|
|
//
|
|
// At a low-level, a package is a collection of bitstream elements.
|
|
// Each element has a "kind" and a dense, non-negative index.
|
|
// Elements can be randomly accessed given their kind and index.
|
|
//
|
|
// Individual elements are sequences of variable-length values (e.g.,
|
|
// integers, booleans, strings, go/constant values, cross-references
|
|
// to other elements). Package pkgbits provides APIs for encoding and
|
|
// decoding these low-level values, but the details of mapping
|
|
// higher-level Go constructs into elements is left to higher-level
|
|
// abstractions.
|
|
//
|
|
// Elements may cross-reference each other with "relocations." For
|
|
// example, an element representing a pointer type has a relocation
|
|
// referring to the element type.
|
|
//
|
|
// Go constructs may be composed as a constellation of multiple
|
|
// elements. For example, a declared function may have one element to
|
|
// describe the object (e.g., its name, type, position), and a
|
|
// separate element to describe its function body. This allows readers
|
|
// some flexibility in efficiently seeking or re-reading data (e.g.,
|
|
// inlining requires re-reading the function body for each inlined
|
|
// call, without needing to re-read the object-level details).
|
|
//
|
|
// This is a copy of internal/pkgbits in the Go implementation.
|
|
package pkgbits
|