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go / tools / refs/heads/master
commit8b51d6644fa2920557841cd6c6e1b21424c8a626[log] [tgz]
authorAlan Donovan <adonovan@google.com>Thu Jul 25 17:24:39 2024 -0700
committerAlan Donovan <adonovan@google.com>Fri Jul 26 23:27:28 2024 +0000
tree91661a98a94614d44edce1db696010dfbe03c916
parent12d2c3421a761da9f1017f5ada1831d5f08e8fff [diff]
go/types/objectpath: support parameterized type aliases

This change caused objectpath to treat Alias nodes more
like Named types: as first-class nodes, with type parameters,
and a destructuring operation (Alias.Rhs(), opRhs, encoded 'a')
access the RHS type.

A number of historical bugs made this trickier than it should
have been:
- go1.22 prints Alias wrongly, requiring a workaround in the test.
- aliases.Enabled is too expensive to call in the decoder,
  so we must trust that when we see an opRhs and we don't
  have an alias, it's because !Enabled(), not a bug.
- legacy aliases still need to be handled, and order matters.
- the test of parameterized aliases can't be added until
  the GOEXPERIMENT has gone away (soon).

Updates golang/go#46477

Change-Id: Ia903f81e29fb7dbb6e17d1e6a962fad73b3e1f7b
Reviewed-on: https://go-review.googlesource.com/c/tools/+/601235
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Alan Donovan <adonovan@google.com>
Reviewed-by: Tim King <taking@google.com>
Commit-Queue: Alan Donovan <adonovan@google.com>
5 files changed
tree: 91661a98a94614d44edce1db696010dfbe03c916
  1. benchmark/
  2. blog/
  3. cmd/
  4. container/
  5. copyright/
  6. cover/
  7. go/
  8. godoc/
  9. gopls/
  10. imports/
  11. internal/
  12. playground/
  13. present/
  14. refactor/
  15. txtar/
  16. .gitattributes
  17. .gitignore
  18. .prettierrc
  19. codereview.cfg
  20. CONTRIBUTING.md
  21. go.mod
  22. go.sum
  23. LICENSE
  24. PATENTS
  25. README.md
README.md

Go Tools

PkgGoDev

This repository provides the golang.org/x/tools module, comprising various tools and packages mostly for static analysis of Go programs, some of which are listed below. Use the “Go reference” link above for more information about any package.

It also contains the golang.org/x/tools/gopls module, whose root package is a language-server protocol (LSP) server for Go. An LSP server analyses the source code of a project and responds to requests from a wide range of editors such as VSCode and Vim, allowing them to support IDE-like functionality.

Selected commands:

  • cmd/goimports formats a Go program like go fmt and additionally inserts import statements for any packages required by the file after it is edited.
  • cmd/callgraph prints the call graph of a Go program.
  • cmd/digraph is a utility for manipulating directed graphs in textual notation.
  • cmd/stringer generates declarations (including a String method) for “enum” types.
  • cmd/toolstash is a utility to simplify working with multiple versions of the Go toolchain.

These commands may be fetched with a command such as

go install golang.org/x/tools/cmd/goimports@latest

Selected packages:

  • go/ssa provides a static single-assignment form (SSA) intermediate representation (IR) for Go programs, similar to a typical compiler, for use by analysis tools.

  • go/packages provides a simple interface for loading, parsing, and type checking a complete Go program from source code.

  • go/analysis provides a framework for modular static analysis of Go programs.

  • go/callgraph provides call graphs of Go programs using a variety of algorithms with different trade-offs.

  • go/ast/inspector provides an optimized means of traversing a Go parse tree for use in analysis tools.

  • go/cfg provides a simple control-flow graph (CFG) for a Go function.

  • go/expect reads Go source files used as test inputs and interprets special comments within them as queries or assertions for testing.

  • go/gcexportdata and go/gccgoexportdata read and write the binary files containing type information used by the standard and gccgo compilers.

  • go/types/objectpath provides a stable naming scheme for named entities (“objects”) in the go/types API.

Numerous other packages provide more esoteric functionality.

Contributing

This repository uses Gerrit for code changes. To learn how to submit changes, see https://golang.org/doc/contribute.html.

The main issue tracker for the tools repository is located at https://github.com/golang/go/issues. Prefix your issue with “x/tools/(your subdir):” in the subject line, so it is easy to find.

JavaScript and CSS Formatting

This repository uses prettier to format JS and CSS files.

The version of prettier used is 1.18.2.

It is encouraged that all JS and CSS code be run through this before submitting a change. However, it is not a strict requirement enforced by CI.