completition: update go completion from github.com/zsh-users/zsh-completions

1 files changed, 1019 insertions, 145 deletions

diff --git a/.zsh/completion/_go.zsh b/.zsh/completion/_go.zsh
index 18bcaaf..8383150 100644
--- a/.zsh/completion/_go.zsh
+++ b/.zsh/completion/_go.zsh
@@ -1,160 +1,1034 @@
-# install in /etc/zsh/zshrc or your personal .zshrc
-
-# gc
-prefixes=(5 6 8)
-for p in $prefixes; do
-	compctl -g "*.${p}" ${p}l
-	compctl -g "*.go" ${p}g
-done
-
-# standard go tools
-compctl -g "*.go" gofmt
-
-# gccgo
-compctl -g "*.go" gccgo
-
-# go tool
-__go_tool_complete() {
-  typeset -a commands build_flags
-  commands+=(
-    'build[compile packages and dependencies]'
-    'clean[remove object files]'
-    'doc[run godoc on package sources]'
-    'env[print Go environment information]'
-    'fix[run go tool fix on packages]'
-    'fmt[run gofmt on package sources]'
-    'get[download and install packages and dependencies]'
-    'help[display help]'
-    'install[compile and install packages and dependencies]'
-    'list[list packages]'
-    'run[compile and run Go program]'
-    'test[test packages]'
-    'tool[run specified go tool]'
-    'version[print Go version]'
-    'vet[run go tool vet on packages]'
+#compdef go -P -value-,GO*,-default- -P -value-,CGO*,-default-
+# ------------------------------------------------------------------------------
+# Copyright (c) 2016 Github zsh-users - http://github.com/zsh-users
+# Copyright (c) 2013-2015 Robby Russell and contributors (see
+# https://github.com/robbyrussell/oh-my-zsh/contributors)
+# Copyright (c) 2010-2014 Go authors
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are met:
+#     * Redistributions of source code must retain the above copyright
+#       notice, this list of conditions and the following disclaimer.
+#     * Redistributions in binary form must reproduce the above copyright
+#       notice, this list of conditions and the following disclaimer in the
+#       documentation and/or other materials provided with the distribution.
+#     * Neither the name of the zsh-users nor the
+#       names of its contributors may be used to endorse or promote products
+#       derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+# ARE DISCLAIMED. IN NO EVENT SHALL ZSH-USERS BE LIABLE FOR ANY DIRECT,
+# INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+# ------------------------------------------------------------------------------
+# Description
+# -----------
+#
+#  Completion script for go 1.14 (http://golang.org).
+#
+# ------------------------------------------------------------------------------
+# Authors
+# -------
+#
+#  * Mikkel Oscar Lyderik Larsen <mikkeloscar@gmail.com>
+#  * Paul Seyfert <pseyfert.mathphys@gmail.com>
+#  * oh-my-zsh authors:
+#        https://github.com/robbyrussell/oh-my-zsh/blob/master/plugins/golang/golang.plugin.zsh
+#  * Go authors
+#
+# ------------------------------------------------------------------------------
+
+__go_buildmodes() {
+  local -a buildmodes
+  buildmodes=(
+  'archive[non-main packages into .a files]'
+  'c-archive[main package, plus all packages it imports, into a C archive file]'
+  'c-shared[main package, plus all packages it imports, into a C shared library]'
+  'default[main packages are built into executables and listed non-main packages are built into .a files]'
+  'shared[non-main packages into a single shared library that will be used when building with the -linkshared option]'
+  'exe[main packages into executables]'
+  'pie[main packages and everything they import into position independent executables (PIE)]'
+  'plugin[main packages, plus all packages that they import, into a Go plugin]'
+  )
+
+  _values 'mode' $buildmodes
+}
+
+
+__go_runtimedebug() {
+  local -a vars
+  vars=(
+    'allocfreetrace[profile allocations]:boolean:(1 0)'
+    'clobberfree[clobber memory after free]:boolean:(1 0)'
+    'cgocheck[check passing go pointers to non-go]: :((0\:"no checks" 1\:"check checks" 2\:"expensive checks"))'
+    'efence[allocate on unique pages]:boolean:(1 0)'
+    "gccheckmark[verify garbage collector's concurrent mark phase]:boolean:(1 0)"
+    'gcpacertrace[print state of the concurrent pacer from garbage collector]:boolean:(1 0)'
+    'gcshrinkstackoff[disable moving goroutines to smaller stacks]:boolean:(1 0)'
+    'gcstoptheworld[disable concurrent garbage collection]: :((0\:default 1\:"disable concurrent garbage collection" 2\:"disable concurrent gc and sweeping"))'
+    'gctrace[emit memory collection and pause information from the garbage collector]:boolean:(1 0)'
+    'madvdontneed[use MADV_DONTNEED instead of MADV_FREE]:boolean:(1 0)'
+    'memprofilerate[every N-th allocation should be profiled]:int:'
+    'invalidptr[crash on invalid integers in pointer-type variables]:boolean:(1 0)'
+    'sbrk[replace memory allocator and garbage collector by trivial allocator]:boolean:(1 0)'
+    'scavenge[enable debugging mode of heap scavenger]:boolean:(1 0)'
+    'scavtrace[emit scavenger work information (memory returned and memory utilization)]:boolean:(1 0)'
+    'scheddetail[emit detailed states of scheduler, processors, threads, goroutines]:boolean:(1 0)'
+    'schedtrace[emmit scheduler state every N ms to stderr]:int'
+    'tracebackancestors[set ancestor goroutines to be printed in goroutine creation stacks]:int'
+    'asyncpreemptoff[disable signal-based asynchronous goroutine preemption.]:boolean:(1 0)'
   )
-  if (( CURRENT == 2 )); then
-    # explain go commands
-    _values 'go tool commands' ${commands[@]}
+  _values -s ',' -S '=' "runtime debug behaviour" $vars[@]
+}
+
+__go_gcdebugflags() {
+  _values -s , -S = 'debug flag' \
+    'append[print information about append compilation]' \
+    'checkptr[instrument unsafe pointer conversions]:pointer conversion checks:((0\:"instrumentation disabled" 1\:"conversions involving unsafe.Pointer are instrumented" 2\:"conversions to unsafe.Pointer force heap allocation"))' \
+    'closure[print information about closure compilation]' \
+    'compilelater[compile functions as late as possible]' \
+    'disablenil[disable nil checks]' \
+    'dclstack[run internal dclstack check]' \
+    'gcprog[print dump of GC programs]' \
+    'libfuzzer[coverage instrumentation for libfuzzer]' \
+    'nil[print information about nil checks]' \
+    'panic[do not hide any compiler panic]' \
+    'slice[print information about slice compilation]' \
+    'typeassert[print information about type assertion inlining]' \
+    'wb[print information about write barriers]' \
+    'export[print export data]' \
+    'pctab[print named pc-value table]:pc-value:(pctospadj pctofile pctoline pctoinline pctopcdata)' \
+    'locationlists[print information about DWARF location list creation]' \
+    'typecheckinl[eager typechecking of inline function bodies]' \
+    'dwarfinl[print information about DWARF inlined function creation]' \
+    'softfloat[force compiler to emit soft-float code]' \
+    'defer[print information about defer compilation]' \
+    'ssa/help[print help about SSA debugging]'
+}
+
+__go_gcflags() {
+  _arguments \
+  '-%[debug non-static initializers]' \
+  '-c=[concurrency during compilation]:int' \
+  '-+[compiling runtime]' \
+  '-B[disable bounds checking]' \
+  '-C[disable printing of columns in error messages]' \
+  '-D=[set relative path for local imports]:path: _path_files -/' \
+  '-E[debug symbol export]' \
+  '-I=[add directory to import search path]:directory: _path_files -/' \
+  '-K[debug missing line numbers]' \
+  '-L[show full file names in error messages]' \
+  '-N[disable optimizations]' \
+  '-S[print assembly listing]' \
+  '-V[print version and exit]' \
+  '-W[debug parse tree after type checking]' \
+  '-asmhdr=[write assembly header to file]:file' \
+  '-bench=[append benchmark times to file]:file' \
+  '-blockprofile=[write block profile to file]:file' \
+  '-buildid=[record id as the build id in the export metadata]:id' \
+  '-complete[compiling complete package (no C or assembly)]' \
+  '-cpuprofile=[write cpu profile to file]:file' \
+  '-d=[print debug information about items in list; try -d help]:list: __go_gcdebugflags' \
+  '-dwarf[generate DWARF symbols (default true)]' \
+  '-dwarfbasentries[use base address selection entries in DWARF (default true)]' \
+  '-dwarflocationlists[add location lists to DWARF in optimized mode (default true)]' \
+  '-dynlink[support references to Go symbols defined in other shared libraries]' \
+  '-e[no limit on number of errors reported]' \
+  '-gendwarfinl=[generate DWARF inline info records (default 2)]:int' \
+  '-goversion=[required version of the runtime]:string' \
+  '-h[halt on error]' \
+  '-importcfg=[read import configuration from file]:file' \
+  '-importmap=[add definition of the form source=actual to import map]:definition' \
+  '-installsuffix=[set pkg directory suffix]:suffix' \
+  '-j[debug runtime-initialized variables]' \
+  '-json=[version,destination for JSON compiler/optimizer logging]:string' \
+  '-l[disable inlining]' \
+  '-lang=[release to compile for]:string' \
+  '-linkobj=[write linker-specific object to file]:file' \
+  '-linkshared[generate code that will be linked against Go shared libraries]' \
+  '-live[debug liveness analysis]' \
+  '-m[print optimization decisions]' \
+  '-memprofile=[write memory profile to file]:file' \
+  '-memprofilerate=[set runtime.MemProfileRate to rate]:rate' \
+  '-msan[build code compatible with C/C++ memory sanitizer]' \
+  '-mutexprofile=[write mutex profile to file]:file' \
+  '-newobj[use new object file format]' \
+  '-nolocalimports[reject local (relative) imports]' \
+  '-o=[write output to file]:file' \
+  '-p=[set expected package import path]:path: _path_files -/' \
+  '-pack[write to file.a instead of file.o]' \
+  '-r[debug generated wrappers]' \
+  '-race[enable race detector]' \
+  '-shared[generate code that can be linked into a shared library]' \
+  '-smallframes[reduce the size limit for stack allocated objects]' \
+  '-spectre=[enable spectre mitigations]:mitigations:(all index ret)' \
+  '-std[compiling standard library]' \
+  '-symabis=[read symbol ABIs from file]:file' \
+  '-traceprofile=[write an execution trace to file]:file' \
+  '-trimpath=[remove prefix from recorded source file paths]:prefix' \
+  '-v[increase debug verbosity]' \
+  '-w[debug type checking]' \
+  '-wb[enable write barrier (default true)]' \
+}
+
+
+local -a commands build_flags
+commands=(
+'bug:start a bug report'
+'build:compile packages and dependencies'
+'clean:remove object files and cached files'
+'doc:show documentation for package or symbol'
+'env:print Go environment information'
+'fix:update packages to use new APIs'
+'fmt:gofmt (reformat) package sources'
+'generate:generate Go files by processing source'
+'get:download and install packages and dependencies'
+'install:compile and install packages and dependencies'
+'list:list packages or modules'
+'mod:module maintenance'
+'run:compile and run Go program'
+'test:test packages'
+'tool:run specified go tool'
+'version:print Go version'
+'vet:report likely mistakes in packages'
+'help:get more information about a command'
+)
+
+__go_envvarvals() {
+  # if __go_envvarvals is called for -value-, I use the function argument to
+  # decide which variable to go to.  if $1 is not set, then __go_envvarvals is
+  # called from the `go env` completion and the current word (with all after
+  # the first '=' removed) is the current variable.
+  local variable
+  variable=${1-${words[$CURRENT]%%=*}}
+  case $variable in
+    # commands
+    AR)
+      ;&
+    CC)
+      ;&
+    CXX)
+      ;&
+    FC)
+      ;&
+    GCCGO)
+      _command_names -e
+      ;;
+    # directories (using fallthrough)
+    GOBIN)
+      ;&
+    GOCACHE)
+      ;&
+    GOTMPDIR)
+      ;&
+    GOTOOLDIR)
+      ;&
+    GOROOT)
+      ;&
+    GOROOT_FINAL)
+      ;&
+    GCCGOTOOLDIR)
+      ;&
+    GOPATH)
+      ;&
+    GOMODCACHE)
+      _files -/
+      ;;
+    # regular files (using fallthrough)
+    GOMOD)
+      ;&
+    PKG_CONFIG)
+      ;&
+    GOENV)
+      _files
+      ;;
+    # special
+    GOHOSTOS)
+      ;&
+    GOOS)
+      # from https://golang.org/doc/install/source#environment
+      _values 'operating system' aix android darwin dragonfly freebsd illumos js linux netbsd openbsd plan9 solaris windows
+      ;;
+    GOHOSTARCH)
+      ;&
+    GOARCH)
+      _values 'architecture' amd64 386 arm ppc64
+      ;;
+    CGO_ENABLED)
+      _values 'enable/disable cgo' 0 1
+      ;;
+    GO_EXTLINK_ENABLED)
+      _values 'enable/disable external linkage' 0 1
+      ;;
+    GOARM)
+      _values 'target arm architecture' 5 6 7
+      ;;
+    GO386)
+      _values 'x86 floating point instruction set' 387 sse2
+      ;;
+    GOMIPS*)
+      _values 'mips floating point instructions' hardfloat softfloat
+      ;;
+    GOWASM)
+      _values 'web assembly features' -s ',' satconv signext
+      ;;
+    GOPROXY)
+      _urls
+      ;;
+    GOEXE)
+      _message "suffix for executables"
+      ;;
+    CGO_*FLAGS_*ALLOW)
+      _message "regexp"
+      ;;
+    CGO_*FLAGS)
+      _dispatch $service -value-,${variable#CGO_},-default-
+      ;;
+    GODEBUG)
+      __go_runtimedebug
+      ;;
+    GOFLAGS)
+      # not implemented, sorry
+      ;;
+    GOINSECURE)
+      ;&
+    GOPRIVATE)
+      ;&
+    GONOPROXY)
+      ;&
+    GONOSUMDB)
+      # comma separated glob patterns (in the syntax of Go's path.Match)
+      _message "comma separated glob pattern"
+      ;;
+    GOSUMDB)
+      _message "e.g. sum.golang.org+<publickey> https://sum.golang.org"
+      ;;
+  esac
+}
+
+if [[ "$service" = -value-* ]]; then
+  variable=${${service%,-default-}#-value-,}
+  # some special variables are not read from the environment
+  local -a blacklist
+  blacklist=('GOEXE' 'GOGCCFLAGS' 'GOHOSTARCH' 'GOHOSTOS' 'GOMOD' 'GOTOOLDIR')
+  if (($blacklist[(I)$variable])); then
     return
   fi
-  build_flags=(
-    '-a[force reinstallation of packages that are already up-to-date]'
+  __go_envvarvals $variable
+  return
+fi
+
+_arguments \
+  "1: :{_describe 'command' commands}" \
+  '*:: :->args'
+
+case $state in
+  args)
+    build_flags=(
+    '-a[force rebuilding of packages that are already up-to-date]'
     '-n[print the commands but do not run them]'
-    '-p[number of parallel builds]:number'
+    '-p[number of builds that can be run in parallel]:number'
     '-race[enable data race detection]'
+    '-msan[enable interoperation with memory sanitizer]'
+    '-v[print the names of packages as they are compiled]'
+    '-work[print temporary work directory and keep it]'
     '-x[print the commands]'
-    '-work[print temporary directory name and keep it]'
-    '-ccflags[flags for 5c/6c/8c]:flags'
-    '-gcflags[flags for 5g/6g/8g]:flags'
-    '-ldflags[flags for 5l/6l/8l]:flags'
-    '-gccgoflags[flags for gccgo]:flags'
+    '-asmflags[arguments for each go tool asm invocation]:flags'
+    '-buildmode[build mode to use]:mode:__go_buildmodes'
     '-compiler[name of compiler to use]:name'
+    '-gccgoflags[arguments for gccgo]:args'
+    '*-gcflags=[arguments for each go tool compile invocation]:args:__go_gcflags'
     '-installsuffix[suffix to add to package directory]:suffix'
+    '-ldflags[arguments to pass on each go tool link invocation.]:flags'
+    '-linkshared[link against shared libraries]'
+    '-overlay[read a JSON config file that provides an overlay for build operations]:file:_files -g "*.json"'
+    '-pkgdir[install and load all packages from dir]:dir'
     '-tags[list of build tags to consider satisfied]:tags'
-  )
-  __go_list() {
-      local expl importpaths
-      declare -a importpaths
-      importpaths=($(go list ${words[$CURRENT]}... 2>/dev/null))
-      _wanted importpaths expl 'import paths' compadd "$@" - "${importpaths[@]}"
-  }
-  case ${words[2]} in
-  clean|doc)
-      _arguments -s -w : '*:importpaths:__go_list'
-      ;;
-  fix|fmt|list|vet)
-      _alternative ':importpaths:__go_list' ':files:_path_files -g "*.go"'
-      ;;
-  install)
-      _arguments -s -w : ${build_flags[@]} \
-        "-v[show package names]" \
-        '*:importpaths:__go_list'
-      ;;
-  get)
-      _arguments -s -w : \
-        ${build_flags[@]}
-      ;;
-  build)
-      _arguments -s -w : \
-        ${build_flags[@]} \
-        "-v[show package names]" \
-        "-o[output file]:file:_files" \
-        "*:args:{ _alternative ':importpaths:__go_list' ':files:_path_files -g \"*.go\"' }"
-      ;;
-  test)
-      _arguments -s -w : \
-        ${build_flags[@]} \
-        "-c[do not run, compile the test binary]" \
-        "-i[do not run, install dependencies]" \
-        "-v[print test output]" \
-        "-x[print the commands]" \
-        "-short[use short mode]" \
-        "-parallel[number of parallel tests]:number" \
-        "-cpu[values of GOMAXPROCS to use]:number list" \
-        "-run[run tests and examples matching regexp]:regexp" \
-        "-bench[run benchmarks matching regexp]:regexp" \
-        "-benchmem[print memory allocation stats]" \
-        "-benchtime[run each benchmark until taking this long]:duration" \
-        "-blockprofile[write goroutine blocking profile to file]:file" \
-        "-blockprofilerate[set sampling rate of goroutine blocking profile]:number" \
-        "-timeout[kill test after that duration]:duration" \
-        "-cpuprofile[write CPU profile to file]:file:_files" \
-        "-memprofile[write heap profile to file]:file:_files" \
-        "-memprofilerate[set heap profiling rate]:number" \
-        "*:args:{ _alternative ':importpaths:__go_list' ':files:_path_files -g \"*.go\"' }"
-      ;;
-  help)
-      _values "${commands[@]}" \
-        'gopath[GOPATH environment variable]' \
-        'packages[description of package lists]' \
-        'remote[remote import path syntax]' \
-        'testflag[description of testing flags]' \
-        'testfunc[description of testing functions]'
-      ;;
-  run)
-      _arguments -s -w : \
-          ${build_flags[@]} \
-          '*:file:_path_files -g "*.go"'
-      ;;
-  tool)
-      if (( CURRENT == 3 )); then
-          _values "go tool" $(go tool)
-          return
+    '-trimpath[remove all file system paths from the resulting executable]'
+    '-toolexec[program to use to invoke toolchain programs]:args'
+    )
+    mod_flags=(
+    '-mod=[module download mode to use]:download mode:(readonly vendor mod)'
+    '-modcacherw[leave newly-created directories in the module cache read-write]'
+    '-modfile=[read an alternate go.mod file]:modfile: _files -g "*.mod"'
+    )
+
+    __go_packages() {
+      local gopaths
+      declare -a gopaths
+      gopaths=("${(s/:/)$(go env GOPATH)}")
+      gopaths+=("$(go env GOROOT)")
+      for p in $gopaths; do
+        _path_files $@ -W "$p/src" -/
+      done
+      # no special treatment for
+      # - relative paths starting with ..
+      # - absolute path starting with /
+      # - variables, substitutions, subshells
+      if [[ $words[$CURRENT] = ..* || $words[$CURRENT] = \$* || $words[$CURRENT] = /* ]]; then
+        _path_files $@ -/ -g '*.go'
+      else
+        # go build accepts paths relative to the cwd but they must start with './', so prefix them
+        _path_files $@ -P './' -/ -g '*.go'
       fi
-      case ${words[3]} in
-      [568]g)
-          _arguments -s -w : \
-              '-I[search for packages in DIR]:includes:_path_files -/' \
-              '-L[show full path in file:line prints]' \
-              '-S[print the assembly language]' \
-              '-V[print the compiler version]' \
-              '-e[no limit on number of errors printed]' \
-              '-h[panic on an error]' \
-              '-l[disable inlining]' \
-              '-m[print optimization decisions]' \
-              '-o[file specify output file]:file' \
-              '-p[assumed import path for this code]:importpath' \
-              '-u[disable package unsafe]' \
-              "*:file:_files -g '*.go'"
+    }
+
+    case $words[1] in
+      build)
+        _arguments \
+          '-o[force build to write to named output file or directory]:file or directory:_files' \
+          '-i[installs the packages that are dependencies of the target]' \
+          ${build_flags[@]} \
+          ${mod_flags[@]} \
+          '*:importpaths:__go_packages'
+          ;;
+
+      clean)
+        _arguments \
+          '-i[remove corresponding installed archive or binary]' \
+          '-r[apply clean recursively on all dependencies]' \
+          ${build_flags[@]} \
+          ${mod_flags[@]} \
+          '*:importpaths:__go_packages'
+          ;;
+
+      doc)
+        _arguments \
+          '-c[respect case when matching symbols]' \
+          '-cmd[treat a command (package main) like a regular package]' \
+          '-u[show docs for unexported and exported symbols and methods]'
           ;;
-      [568]l)
-          local O=${words[3]%l}
-          _arguments -s -w : \
-              '-o[file specify output file]:file' \
-              '-L[search for packages in DIR]:includes:_path_files -/' \
-              "*:file:_files -g '*.[ao$O]'"
+
+      env)
+        local -a goenvvars
+        goenvvars=(
+          "GOARCH[architecture, or processor, for which to compile code.]:architecture"
+          "GCCGO[gccgo command to run.]:gccgo command"
+          "GOBIN[directory where 'go install' installs to]:go install target dir"
+          "GOCACHE[directory to store cached information]:go build cache dir"
+          "GODEBUG[enable runtime debug facilities]:runtime debug settings"
+          "GOENV[location of the go environment configuration file]:configuration file"
+          "GOFLAGS[default go command line flags]:space sparated default command line flags"
+          "GOINSECURE[module prefixes that are feched insecurely]:comma separated module prefixes"
+          "GOOS[target operating system]:operating system"
+          "GOPATH[path to resolve import statements]:import path"
+          "GOPROXY[URL of go module proxy]:proxy url"
+          "GOROOT[root of the go tree]:go root directory"
+          "GOTMPDIR[directory for temporary sources, packages, and binaries]:tmp directory"
+          "GOPRIVATE[modules that should always be fetched directly]:comma separated glob patterns"
+          "GONOPROXY[modules that should always be fetched directly]:comma separated glob patterns"
+          "GONOSUMDB[modules that should not be compared against the checksum db]:comma separated glob patterns"
+          "GOMODCACHE[module cache directory]:path"
+          "GOSUMDB[checksum database]:name(+publickey( url))"
+          "AR[command for manipulating library archives (for gccgo)]:archive manipulation program"
+          "CC[command to compile C code]:C compiler"
+          "CGO_ENABLED[enable/disable cgo]:boolean"
+          "CGO_CFLAGS[flags passed to the compiler for C code]:C compilation flags"
+          "CGO_CFLAGS_ALLOW[additional flags to allow to appear in #cgo CFLAGS]:regular expression"
+          "CGO_CFLAGS_DISALLOW[flags that must be disallowed from appearing in #cgo CFLAGS]"
+          "CGO_CPPFLAGS[flags passed to the C preprocessor]:C preprocessor flags"
+          "CGO_CPPFLAGS_ALLOW[additional flags to allow to appear in #cgo CPPFLAGS]:regular expression"
+          "CGO_CPPFLAGS_DISALLOW[flags that must be disallowed from appearing in #cgo CPPFLAGS]"
+          "CGO_CXXFLAGS[flags passed to the compiler for C++ code]:C++ compilation flags"
+          "CGO_CXXFLAGS_ALLOW[additional flags to allow to appear in #cgo CXXFLAGS]:regular expression"
+          "CGO_CXXFLAGS_DISALLOW[flags that must be disallowed from appearing in #cgo CXXFLAGS]"
+          "CGO_FFLAGS[flags passed to the compiler for Fortran code]:Fortran compilation flags"
+          "CGO_FFLAGS_ALLOW[additional flags to allow to appear in #cgo FFLAGS]:regular expression"
+          "CGO_FFLAGS_DISALLOW[flags that must be disallowed from appearing in #cgo FFLAGS]"
+          "CGO_LDFLAGS[flags passed to the compiler for linker]:linker flags"
+          "CGO_LDFLAGS_ALLOW[additional flags to allow to appear in #cgo LDFLAGS]:regular expression"
+          "CGO_LDFLAGS_DISALLOW[flags that must be disallowed from appearing in #cgo LDFLAGS]"
+          "CXX[command to compile C++]:C++ compiler"
+          "FC[command to compile Fortran]:Fortran compiler"
+          "PKG_CONFIG[Path to pkg-config tool.]:path to pkg-config"
+          "GOARM[arm architecture]:arm architecture"
+          "GO386[x86 instruction set]:x86 instruction set"
+          "GOMIPS[mips instruction set]:mips instruction set"
+          "GOMIPS64[mips64 instruction set]:mips64 instruction set"
+          "GOWASM[web assembly features]:comma separated web assembly features"
+          "GCCGOTOOLDIR[directory of gccgo tools]:gccgo tool director"
+          "GOROOT_FINAL[root of the go tree]:go root"
+          "GO_EXTLINK_ENABLED[enable external linking mode]:boolean"
+          "GIT_ALLOW_PROTOCOL[schemes allowed to fetch]:colon separated git schemes"
+          "GOEXE[suffix for executables]:executable suffix"
+          "GOGCCFLAGS[arguments supplied to CC]:space separated arguments to CC"
+          "GOHOSTARCH[architecture of the toolchain binaries]:host os architecture"
+          "GOHOSTOS[operating system of the toolchain binaries]:host os"
+          "GOMOD[absolute path the the main go.mod]:abs path to main go.mod"
+          "GOTOOLDIR[installation directory of go tools]:tool installation directory"
+        )
+        local -a exclude_from_w
+        exclude_from_w=(GOENV)
+
+        __list_env_vars() {
+          # the parameter expansion strops off everything after the first [
+          _values -s ' ' -w 'environment variable' ${goenvvars[@]%%\[*}
+        }
+
+        # the ^ parameter expansion appends ": __go_envvarvals" to every element of goenvvars
+        # the :# parameter expansion removes all elements matching GOENV*
+        [[ $words[2] != '-w' ]] && _arguments \
+          '-json[print the environment in JSON format]' \
+          '-u[unset environment variables]' \
+          '-w[change the default setting of environment variables]' \
+          '*:[show environment variable]: __list_env_vars' || _values \
+          -s ' ' -S "=" -w 'environment variable' ${^goenvvars:#GOENV*}": __go_envvarvals"
+        ;;
+
+      fix)
+        _arguments '*:importpaths:__go_packages'
+        ;;
+
+      fmt)
+        _arguments \
+          '-n[prints commands that would be executed]' \
+          '-x[prints commands as they are executed]' \
+          '*:importpaths:__go_packages'
           ;;
-      dist)
-          _values "dist tool" banner bootstrap clean env install version
+
+      generate)
+        _arguments \
+          '-run=[specifies a regular expression to select directives]:regex' \
+          '-x[print the commands]' \
+          '-n[print the commands but do not run them]' \
+          '-v[print the names of packages as they are compiled]' \
+          "*:args:{ _alternative ':importpaths:__go_packages' _files }"
           ;;
-      *)
-          # use files by default
-          _files
+
+      get)
+        # no mod_flags for get
+        _arguments \
+          '-d[instructs get to stop after downloading the packages]' \
+          '-f[force get -u not to verify that each package has been checked from vcs]' \
+          '-fix[run the fix tool on the downloaded packages]' \
+          '-insecure[permit fetching/resolving custom domains]' \
+          '-t[also download the packages required to build tests]' \
+          '-u[use the network to update the named packages]' \
+          ${build_flags[@]} \
+          '*:importpaths:__go_packages'
           ;;
-      esac
-      ;;
-  esac
-}
 
-compdef __go_tool_complete go
+      install)
+        _arguments ${build_flags[@]} \
+          '*:importpaths:__go_packages'
+          ;;
+
+      list)
+        local -a list_args
+        list_args=(
+          '-e[changes the handling of erroneous packages]'
+          '-f[specifies an alternate format for the list]:format'
+          '-json[causes package data to be printed in JSON format]'
+          '-compiled[set CompiledGoFiles to the Go source files presented to the compiler]'
+          '-deps[iterate over named packages and their dependencies]'
+          '-m[list modules instead of packages]'
+          ${build_flags[@]}
+          ${mod_flags[@]}
+          '*:importpaths:__go_packages'
+        )
+        # -u and -versions are only available if -m is present on the commandline
+        if (($words[(I)-m])); then
+          list_args+=(
+          '-u[adds information about available upgrades]'
+          '-versions[list all known versions of modules]'
+          )
+        fi
+        _arguments ${list_args[@]}
+          ;;
+
+      mod)
+        local -a mod_commands
+        mod_commands=(
+        'download:download modules to local cache'
+        'edit:edit go.mod from tools or scripts'
+        'graph:print module requirement graph'
+        'init:initialize new module in current directory'
+        'tidy:add missing and remove unused modules'
+        'vendor:make vendored copy of dependencies'
+        'verify:verify dependencies have expected content'
+        'why:explain why packages or modules are needed'
+        'help:get more information about a command'
+        )
+
+        _arguments \
+          "1: :{_describe 'command' mod_commands}" \
+          '*:: :->args'
+
+        case $state in
+          args)
+            case $words[1] in
+              download)
+                _arguments \
+                  '-json[print a sequance of JSON objects to standard output]'
+                ;;
+
+              edit)
+                _arguments \
+                  '-fmt[reformats the go.mod file without making other changes]' \
+                  "-module[change the module's path]" \
+                  '*-require=[add a requirement on the given module path and version]:require' \
+                  '*-droprequire=[drop a requirement on the given module path and version]:droprequire' \
+                  '*-exclude=[add an exclusion for the given module path and version]:exclude' \
+                  '*-dropexclude=[drop an exclusion for the given module path and version]:dropexclude' \
+                  '*-replace=[add a replacement of the given module path and version]:replace' \
+                  '*-dropreplace=[drop a replacement of the given module path and version]:dropreplace' \
+                  '-json[prints the final go.mod file in JSON format]' \
+                  '-print[prints the final go.mod in its text format]' \
+                  ':go.mod:_path_files -g "go.mod"'
+                ;;
+              graph)
+                ;;
+              init)
+                # Use go packages as module name suggestion
+                _arguments \
+                  '*:module:__go_packages'
+                ;;
+              tidy)
+                _arguments \
+                  '-v[print information about removed modules to standard error]' \
+                  '-e[attempt to proceed despite errors encountered while loading packages]'
+                ;;
+              vendor)
+                _arguments \
+                  '-v[print the names of vendored modules and packages to standard error]' \
+                  '-e[attempt to proceed despite errors encountered while loading packages]'
+                ;;
+              verify)
+                ;;
+              why)
+                _arguments \
+                  '-m[treats the arguments as a list of modules]' \
+                  '-vendor[exclude tests of dependencies]' \
+                  '*:module:__go_packages'
+                ;;
+            esac
+            ;;
+        esac
+        ;;
+
+      run)
+        _arguments \
+          ${build_flags[@]} \
+          '-exec[invoke the binary using xprog]:xporg' \
+          '*:importpaths:__go_packages'
+          ;;
+
+      test)
+        if [[ $words[$CURRENT] = -test.* ]]; then
+          _arguments \
+            '-test.bench[run only benchmarks matching regexp]:regexp' \
+            '-test.benchmem[print memory allocations for benchmarks]' \
+            '-test.benchtime[run each benchmark for duration d (default 1s)]:d' \
+            '-test.blockprofile[write a goroutine blocking profile to file]:file:_files' \
+            '-test.blockprofilerate[set blocking profile rate (see runtime.SetBlockProfileRate) (default 1)]:rate' \
+            '-test.count[run tests and benchmarks n times (default 1)]:n' \
+            '-test.coverprofile[write a coverage profile to file]:file:_files' \
+            '-test.cpu[comma-separated list of cpu counts to run each test with]:comma-separated list' \
+            '-test.cpuprofile[write a cpu profile to file]:file:_files' \
+            '-test.failfast[do not start new tests after the first test failure]' \
+            '-test.list[list tests, examples, and benchmarks matching regexp then exit]:regexp' \
+            '-test.memprofile[write an allocation profile to file]:file:_files' \
+            '-test.memprofilerate[set memory allocation profiling rate (see runtime.MemProfileRate)]:rate' \
+            '-test.mutexprofile[write a mutex contention profile to the named file after execution]:string' \
+            '-test.mutexprofilefraction[if >= 0, calls runtime.SetMutexProfileFraction() (default 1)]:int' \
+            '-test.outputdir[write profiles to dir]:dir:_path_files -/' \
+            '-test.parallel[run at most n tests in parallel (default 4)]:n' \
+            '-test.run[run only tests and examples matching regexp]:regexp' \
+            '-test.short[run smaller test suite to save time]' \
+            '-test.testlogfile[write test action log to file (for use only by cmd/go)]:file' \
+            '-test.timeout[panic test binary after duration d (default 0, timeout disabled)]:d' \
+            '-test.trace[write an execution trace to file]:file' \
+            '-test.v[verbose: print additional output]'
+        else
+          _arguments \
+            "-c[compile but don't run test]" \
+            '-i[install dependencies of the test]' \
+            '-bench[run benchmarks matching the regular expression]:regexp' \
+            '-benchmem[print memory allocation statistics for benchmarks]' \
+            '-benchtime[run benchmarks for t rime]:t' \
+            '-blockprofile[write a goroutine blocking profile to the specified file]:block' \
+            '-blockprofilerate[control goroutine blocking profiles]:n' \
+            '-count[run each test and benchmark n times]:n' \
+            '-cover[enable coverage analysis]' \
+            '-covermode[set the mode for coverage analysis]:mode:(set count atomic)' \
+            '-coverpkg[apply coverage analysis in each test of listed packages]:list' \
+            '-coverprofile[write a coverage profile to file]:cover' \
+            '-cpu[specify a list of GOMAXPROCS values]:cpus' \
+            '-cpuprofile[write a CPU profile to the specified file]:profile' \
+            '-memprofile[write a memory profile to file]:mem' \
+            '-memprofilerate[enable more precise memory profiles]:n' \
+            '-outputdir[place output files from profiling in output dir]:dir' \
+            '-parallel[allow parallel execution of test functions]:n' \
+            '-run[run tests and examples matching the regular expression]:regexp' \
+            '-short[tell long-running tests to shorten their run time]' \
+            '-test.-[specify options for test running]:test running options:' \
+            '-timeout[timeout long running tests]:t' \
+            '-trace[write an execution trace to the specified file]:trace' \
+            '-v[verbose output]' \
+            ${build_flags[@]} \
+            '-exec[run test binary using xprog]:xprog' \
+            '-o[compile test binary to named file]:file:_files' \
+            '*:importpaths:__go_packages'
+        fi
+          ;;
+
+      tool)
+        local -a tools
+        tools=($(go tool))
+
+        _arguments \
+          '-n[print command that would be executed]' \
+          "1: :{_describe 'tool' tools}" \
+          '*:: :->args'
+
+        case $state in
+          args)
+            case $words[1] in
+              addr2line)
+                _files
+                ;;
+
+              asm)
+                _arguments \
+                  '-D[predefined symbol with optional simple value]:value' \
+                  '-I[include directory]:value' \
+                  '-S[print assembly and machine code]' \
+                  '-debug[dump instructions as they are parsed]' \
+                  '-dynlink[support references to Go symbols]' \
+                  '-o[output file]:string' \
+                  '-shared[generate code that can be linked into a shared lib]' \
+                  '-trimpath[remove prefix from recorded source file paths]:string'
+                ;;
+
+              callgraph)
+                local -a algos graphs
+                algos=(
+                'static:static calls only'
+                'cha:Class Hierarchy Analysis'
+                'rta:Rapid Type Analysis'
+                'pta:inclusion-based Points-To Analysis'
+                )
+                graphs=(
+                'digraph:output in digraph format'
+                'graphviz:output in AT&T GraphViz (.dot) format'
+                )
+
+                _arguments \
+                  '-algo=[call-graph construction algorithm]:algos:{ _describe "algos" algos }' \
+                  "-test[include the package's tests in the analysis]" \
+                  '-format=[format in which each call graph edge is displayed]:graphs:{ _describe "graphs" graphs }'
+                ;;
+
+              cgo)
+                _arguments \
+                  '-debug-define[print relevant #defines]' \
+                  '-debug-gcc[print gcc invocations]' \
+                  '-dynimport[if non-empty, print dynamic import data]:string' \
+                  '-dynlinker[record dynamic linker information]' \
+                  '-dynout[write -dynimport output to file]:file' \
+                  '-dynpackage[set Go package for -dynimport output]:string' \
+                  '-exportheader[where to write export header]:string' \
+                  '-gccgo[generate files for use with gccgo]' \
+                  '-gccgopkgpath[-fgo-pkgpath option used with gccgo]:string' \
+                  '-gccgoprefix[-fgo-prefix option used with gccgo]:string' \
+                  '-godefs[write Go definitions for C file to stdout]' \
+                  '-import_runtime_cgo[import runtime/cgo in generated code]' \
+                  '-import_syscall[import syscall in generated code]' \
+                  '-importpath[import path of package being built]:path' \
+                  '-objdir[object directory]:dir'
+                ;;
+
+              compile)
+                _arguments \
+                  '-%[debug non-static initializers]' \
+                  '-+[compiling runtime]' \
+                  "-A[for bootstrapping, allow 'any' type]" \
+                  '-B[disable bounds checking]' \
+                  '-D[set relative path for local imports]:path' \
+                  '-E[debug symbol export]' \
+                  '-I[add directory to import search path]:directory' \
+                  '-K[debug missing line numbers]' \
+                  '-L[use full (long) path in error messages]' \
+                  '-M[debug move generation]' \
+                  '-N[disable optimizations]' \
+                  '-P[debug peephole optimizer]' \
+                  '-R[debug register optimizer]' \
+                  '-S[print assembly listing]' \
+                  '-V[print compiler version]' \
+                  '-W[debug parse tree after type checking]' \
+                  '-asmhdr[write assembly header to file]:file' \
+                  '-buildid[record id as the build id in the export metadata]:id' \
+                  '-complete[compiling complete package (no C or assembly)]' \
+                  '-cpuprofile[write cpu profile to file]:file' \
+                  '-d[print debug information about items in list]:list' \
+                  '-dynlink[support references to Go symbols]' \
+                  '-e[no limit on number of errors reported]' \
+                  '-f[debug stack frames]' \
+                  '-g[debug code generation]' \
+                  '-h[halt on error]' \
+                  '-i[debug line number stack]' \
+                  '-importmap[add definition of the form source=actual to import map]:definition' \
+                  '-installsuffix[set pkg directory suffix]:suffix' \
+                  '-j[debug runtime-initialized variables]' \
+                  '-l[disable inlining]' \
+                  '-largemodel[generate code that assumes a large memory model]' \
+                  '-live[debug liveness analysis]' \
+                  '-m[print optimization decisions]' \
+                  '-memprofile[write memory profile to file]:file' \
+                  '-memprofilerate[set runtime.MemProfileRate to rate]:rate' \
+                  '-nolocalimports[reject local (relative) imports]' \
+                  '-o[write output to file]:file' \
+                  '-p[set expected package import path]:path' \
+                  '-pack[write package file instead of object file]' \
+                  '-r[debug generated wrappers]' \
+                  '-race[enable race detector]' \
+                  '-s[warn about composite literals that can be simplified]' \
+                  '-shared[generate code that can be linked into a shared library]' \
+                  '-trimpath[remove prefix from recorded source file paths]:prefix' \
+                  '-u[reject unsafe code]' \
+                  '-v[increase debug verbosity]' \
+                  '-w[debug type checking]' \
+                  '-wb[enable write barrier (default 1)]' \
+                  '-x[debug lexer]' \
+                  '-y[debug declarations in canned imports (with -d)]' \
+                  '*:file:_files -g "*.go(-.)"'
+                ;;
+
+              cover)
+                if (( CURRENT == 2 )); then
+                  _arguments \
+                    '-func=[output coverage profile information for each function]:string' \
+                    '-html=[generate HTML representation of coverage profile]:file:_files' \
+                    '-mode=[coverage mode]:mode:(set count atomic)'
+                  return
+                fi
+
+                _arguments \
+                  '-o[file for output]:file' \
+                  '-var=[name of coverage variable to generate]:var' \
+                  '*:file:_files -g "*.go(-.)"'
+                ;;
+
+              doc)
+                _arguments \
+                  '-c[respect case when matching symbols]' \
+                  '-cmd[treat a command (package main) like a regular package]' \
+                  '-u[show docs for unexported and exported symbols and methods]' \
+                  ;;
+
+              fix)
+                _arguments \
+                  '-diff[display diffs instead of rewriting files]' \
+                  '-force[force fixes to run even if the code looks updated]:string' \
+                  '-r[restrict the rewrites]:string' \
+                  '*:files:_files'
+                ;;
+
+              link)
+                _arguments \
+                  '-B[add an ELF NT_GNU_BUILD_ID note when using ELF]:note' \
+                  '-C[check Go calls to C code]' \
+                  '-D[set data segment address (default -1)]:address' \
+                  '-E[set entry symbol name]:entry' \
+                  '-H[set header type]:type' \
+                  '-I[use linker as ELF dynamic linker]:linker' \
+                  '-L[add specified directory to library path]:directory' \
+                  '-R[set address rounding quantum (default -1)]:quantum' \
+                  '-T[set text segment address (default -1)]:address' \
+                  '-V[print version and exit]' \
+                  '-W[disassemble input]' \
+                  '-X[add string value definition]:definition' \
+                  '-a[disassemble output]' \
+                  '-buildid[record id as Go toolchain build id]:id' \
+                  '-buildmode[set build mode]:mode' \
+                  '-c[dump call graph]' \
+                  '-cpuprofile[write cpu profile to file]:file' \
+                  '-d[disable dynamic executable]' \
+                  '-extld[use linker when linking in external mode]:linker' \
+                  '-extldflags[pass flags to external linker]:flags' \
+                  '-f[ignore version mismatch]' \
+                  '-g[disable go package data checks]' \
+                  '-h[halt on error]' \
+                  '-installsuffix[set package directory suffix]:suffix' \
+                  '-k[set field tracking symbol]:symbol' \
+                  '-linkmode[set link mode]:mode:(internal external auto)' \
+                  '-linkshared[link against installed Go shared libraries]' \
+                  '-memprofile[write memory profile to file]:file' \
+                  '-memprofilerate[set runtime.MemProfileRate to rate]:rate' \
+                  '-n[dump symbol table]' \
+                  '-o[write output to file]:file' \
+                  '-r[set the ELF dynamic linker search path to dir1:dir2:...]:path' \
+                  '-race[enable race detector]' \
+                  '-s[disable symbol table]' \
+                  '-shared[generate shared object (implies -linkmode external)]' \
+                  '-tmpdir[use directory for temporary files]:directory' \
+                  '-u[reject unsafe packages]' \
+                  '-v[print link trace]' \
+                  '-w[disable DWARF generation]' \
+                  '*:files:_files'
+                ;;
+
+              objdump)
+                _arguments \
+                  '-s[only dump symbols matching this regexp]:regexp' \
+                  '*:files:_files'
+                ;;
+
+              pack)
+                _arguments '1:ops:(c p r t x)' '::verbose:(v)' ':files:_files'
+                ;;
+
+              pprof)
+                _arguments \
+                  '-callgrind[outputs a graph in callgrind format]' \
+                  '-disasm=[output annotated assembly]:p' \
+                  '-dot[outputs a graph in DOT format]' \
+                  '-eog[visualize graph through eog]' \
+                  '-evince[visualize graph through evince]' \
+                  '-gif[outputs a graph image in GIF format]' \
+                  '-gv[visualize graph through gv]' \
+                  '-list=[output annotated source for functions matching regexp]:p' \
+                  '-pdf[outputs a graph in PDF format]' \
+                  '-peek=[output callers/callees of functions matching regexp]:p' \
+                  '-png[outputs a graph image in PNG format]' \
+                  '-proto[outputs the profile in compressed protobuf format]' \
+                  '-ps[outputs a graph in PS format]' \
+                  '-raw[outputs a text representation of the raw profile]' \
+                  '-svg[outputs a graph in SVG format]' \
+                  '-tags[outputs all tags in the profile]' \
+                  '-text[outputs top entries in text form]' \
+                  '-top[outputs top entries in text form]' \
+                  '-tree[outputs a text rendering of call graph]' \
+                  '-web[visualize graph through web browser]' \
+                  '-weblist=[output annotated source in HTML]:p' \
+                  '-output=[generate output on file f (stdout by default)]:f' \
+                  '-functions[report at function level (default)]' \
+                  '-files[report at source file level]' \
+                  '-lines[report at source line level]' \
+                  '-addresses[report at address level]' \
+                  '-base[show delta from this profile]:profile' \
+                  '-drop_negative[ignore negative differences]' \
+                  '-cum[sort by cumulative data]' \
+                  '-seconds=[length of time for dynamic profiles]:n' \
+                  '-nodecount=[max number of nodes to show]:n' \
+                  '-nodefraction=[hide nodes below <f>*total]:f' \
+                  '-edgefraction=[hide edges below <f>*total]:f' \
+                  '-sample_index[index of sample value to display]' \
+                  '-mean[average sample value over first value]' \
+                  '-inuse_space[display in-use memory size]' \
+                  '-inuse_objects[display in-use object counts]' \
+                  '-alloc_space[display allocated memory size]' \
+                  '-alloc_objects[display allocated object counts]' \
+                  '-total_delay[display total delay at each region]' \
+                  '-contentions[display number of delays at each region]' \
+                  '-mean_delay[display mean delay at each region]' \
+                  '-runtime[show runtime call frames in memory profiles]' \
+                  '-focus=[restricts to paths going through a node matching regexp]:r' \
+                  '-ignore=[skips paths going through any nodes matching regexp]:r' \
+                  '-tagfocus=[restrict to samples tagged with key:value matching regexp]:r' \
+                  '-tagignore=[discard samples tagged with key:value matching regexp]' \
+                  '-call_tree[generate a context-sensitive call tree]' \
+                  '-unit=[convert all samples to unit u for display]:u' \
+                  '-divide_by=[scale all samples by dividing them by f]:f' \
+                  '-buildid=[override build id for main binary in profile]:id' \
+                  '-tools=[search path for object-level tools]:path' \
+                  '-help[help message]' \
+                  '*:files:_files'
+                ;;
+
+              trace)
+                _arguments \
+                  '-http=[HTTP service address]:addr' \
+                  '*:files:_files'
+                ;;
+
+              vet)
+                _arguments \
+                  '-all[check everything]' \
+                  '-asmdecl[check assembly against Go declarations]' \
+                  '-assign[check for useless assignments]' \
+                  '-atomic[check for common mistaken usages of the sync/atomic]' \
+                  '-bool[check for mistakes involving boolean operators]' \
+                  '-buildtags[check that +build tags are valid]' \
+                  '-composites[check that composite literals used field-keyed elements]' \
+                  '-compositewhitelist[use composite white list]' \
+                  '-copylocks[check that locks are not passed by value]' \
+                  '-methods[check that canonically named methods are canonically defined]' \
+                  '-nilfunc[check for comparisons between functions and nil]' \
+                  '-printf[check printf-like invocations]' \
+                  '-printfuncs[print function names to check]:string' \
+                  '-rangeloops[check that range loop variables are used correctly]' \
+                  '-shadow[check for shadowed variables]' \
+                  '-shadowstrict[whether to be strict about shadowing]' \
+                  '-shift[check for useless shifts]' \
+                  '-structtags[check that struct field tags have canonical format]' \
+                  '-tags[list of build tags to apply when parsing]:list' \
+                  '-test[for testing only: sets -all and -shadow]' \
+                  '-unreachable[check for unreachable code]' \
+                  '-unsafeptr[check for misuse of unsafe.Pointer]' \
+                  '-unusedfuncs[list of functions whose results must be used]:string' \
+                  '-unusedresult[check for unused result of calls to functions in -unusedfuncs]' \
+                  '-unusedstringmethods[list of methods whose results must be used]:string' \
+                  '-v[verbose]' \
+                  '*:files:_files'
+                ;;
+
+              yacc)
+                _arguments \
+                  '-o[output]:output' \
+                  '-v[parsetable]:parsetable' \
+                  '*:files:_files'
+                ;;
+            esac
+            ;;
+        esac
+        ;;
+
+      vet)
+        _arguments \
+          '-n[print commands that would be executed]' \
+          '-x[prints commands as they are executed]' \
+          ${build_flags[@]} \
+          '*:importpaths:__go_packages'
+          ;;
+      help)
+        local -a topics
+        topics=(
+        'buildmode:build modes'
+        'c:calling between Go and C'
+        'cache:build and test caching'
+        'environment:environment variables'
+        'filetype:file types'
+        'go.mod:the go.mod file'
+        'gopath:GOPATH environment variable'
+        'gopath-get:legacy GOPATH go get'
+        'goproxy:module proxy protocol'
+        'importpath:import path syntax'
+        'modules:modules, module versions, and more'
+        'module-get:module-aware go get'
+        'module-auth:module authentication using go.sum'
+        'module-private:module configuration for non-public modules'
+        'packages:package lists and patterns'
+        'testflag:testing flags'
+        'testfunc:testing functions'
+        )
+
+        _arguments "1: :{_describe 'command' commands -- topics}"
+        ;;
+    esac
+    ;;
+esac
+
+# Local Variables:
+# mode: Shell-Script
+# sh-indentation: 2
+# indent-tabs-mode: nil
+# sh-basic-offset: 2
+# End:
+# vim: ft=zsh sw=2 ts=2 et