golang doc 代码
文件路径：/src/internal/pkgbits/doc.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).
package pkgbits