exptostd

README

ExpToStd

Detects functions from golang.org/x/exp/ that can be replaced by std functions.

Actual detections:

• golang.org/x/exp/maps:

  • Keys
  • Values
  • Equal
  • EqualFunc
  • Clone
  • Copy
  • DeleteFunc
  • Clear

• golang.org/x/exp/slices:

  • Equal
  • EqualFunc
  • Compare
  • CompareFunc
  • Index
  • IndexFunc
  • Contains
  • ContainsFunc
  • Insert
  • Delete
  • DeleteFunc
  • Replace
  • Clone
  • Compact
  • CompactFunc
  • Grow
  • Clip
  • Reverse
  • Sort
  • SortFunc
  • SortStableFunc
  • IsSorted
  • IsSortedFunc
  • Min
  • MinFunc
  • Max
  • MaxFunc
  • BinarySearch
  • BinarySearchFunc

• golang.org/x/exp/constraints:

  • Ordered

Usages

Inside golangci-lint

Recommended.

linters:
  enable:
    - exptostd

As a CLI

go install github.com/ldez/exptostd/cmd/exptostd@latest

./exptostd ./...

Examples

package foo

import (
	"fmt"

	"golang.org/x/exp/maps"
)

func foo(m map[string]string) {
	clone := maps.Clone(m)

	fmt.Println(clone)
}

It can be replaced by:

package foo

import (
	"fmt"
	"maps"
)

func foo(m map[string]string) {
	clone := maps.Clone(m)

	fmt.Println(clone)
}

References

• https://tip.golang.org/doc/go1.21#maps
• https://tip.golang.org/doc/go1.21#slices
• https://tip.golang.org/doc/go1.23#iterators
• https://tip.golang.org/doc/go1.21#cmp

Documentation

Overview

Package exptostd It is an analyzer that detects functions from golang.org/x/exp/ that can be replaced by std functions.

Index

• func NewAnalyzer() *analysis.Analyzer
• type Result

Functions

func NewAnalyzer

func NewAnalyzer() *analysis.Analyzer

NewAnalyzer create a new Analyzer.

Types

type Result

type Result struct {
	Diagnostics []analysis.Diagnostic
	// contains filtered or unexported fields
}

Result is step analysis results.