Add staticcheck tool

vendor/honnef.co/go/tools/quickfix/qf1004/qf1004.go

@@ -0,0 +1,65 @@
+package qf1004
+
+import (
+	"fmt"
+	"go/ast"
+	"go/token"
+
+	"honnef.co/go/tools/analysis/edit"
+	"honnef.co/go/tools/analysis/lint"
+	"honnef.co/go/tools/analysis/report"
+	typeindexanalyzer "honnef.co/go/tools/internal/analysisinternal/typeindex"
+	"honnef.co/go/tools/internal/typesinternal/typeindex"
+
+	"golang.org/x/tools/go/analysis"
+)
+
+var SCAnalyzer = lint.InitializeAnalyzer(&lint.Analyzer{
+	Analyzer: &analysis.Analyzer{
+		Name:     "QF1004",
+		Run:      run,
+		Requires: []*analysis.Analyzer{typeindexanalyzer.Analyzer},
+	},
+	Doc: &lint.RawDocumentation{
+		Title:    `Use \'strings.ReplaceAll\' instead of \'strings.Replace\' with \'n == -1\'`,
+		Since:    "2021.1",
+		Severity: lint.SeverityHint,
+	},
+})
+
+var Analyzer = SCAnalyzer.Analyzer
+
+var fns = []struct {
+	path        string
+	name        string
+	replacement string
+}{
+	{"strings", "Replace", "strings.ReplaceAll"},
+	{"strings", "SplitN", "strings.Split"},
+	{"strings", "SplitAfterN", "strings.SplitAfter"},
+	{"bytes", "Replace", "bytes.ReplaceAll"},
+	{"bytes", "SplitN", "bytes.Split"},
+	{"bytes", "SplitAfterN", "bytes.SplitAfter"},
+}
+
+func run(pass *analysis.Pass) (any, error) {
+	// XXX respect minimum Go version
+
+	// FIXME(dh): create proper suggested fix for renamed import
+
+	index := pass.ResultOf[typeindexanalyzer.Analyzer].(*typeindex.Index)
+	for _, fn := range fns {
+		for c := range index.Calls(index.Object(fn.path, fn.name)) {
+			call := c.Node().(*ast.CallExpr)
+			if op, ok := call.Args[len(call.Args)-1].(*ast.UnaryExpr); ok && op.Op == token.SUB {
+				if lit, ok := op.X.(*ast.BasicLit); ok && lit.Value == "1" {
+					report.Report(pass, call.Fun, fmt.Sprintf("could use %s instead", fn.replacement),
+						report.Fixes(edit.Fix(fmt.Sprintf("Use %s instead", fn.replacement),
+							edit.ReplaceWithString(call.Fun, fn.replacement),
+							edit.Delete(op))))
+				}
+			}
+		}
+	}
+	return nil, nil
+}