mirror of
https://github.com/go-gitea/gitea
synced 2024-12-25 11:14:52 +01:00
1c3278c2fa
* update revive lint to latest commit * make fmt * change import
191 lines
4 KiB
Go
Vendored
191 lines
4 KiB
Go
Vendored
package rule
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"go/ast"
|
|
"go/printer"
|
|
"go/token"
|
|
"go/types"
|
|
"regexp"
|
|
"strings"
|
|
|
|
"github.com/mgechev/revive/lint"
|
|
)
|
|
|
|
const styleGuideBase = "https://golang.org/wiki/CodeReviewComments"
|
|
|
|
// isBlank returns whether id is the blank identifier "_".
|
|
// If id == nil, the answer is false.
|
|
func isBlank(id *ast.Ident) bool { return id != nil && id.Name == "_" }
|
|
|
|
func isTest(f *lint.File) bool {
|
|
return strings.HasSuffix(f.Name, "_test.go")
|
|
}
|
|
|
|
var commonMethods = map[string]bool{
|
|
"Error": true,
|
|
"Read": true,
|
|
"ServeHTTP": true,
|
|
"String": true,
|
|
"Write": true,
|
|
}
|
|
|
|
func receiverType(fn *ast.FuncDecl) string {
|
|
switch e := fn.Recv.List[0].Type.(type) {
|
|
case *ast.Ident:
|
|
return e.Name
|
|
case *ast.StarExpr:
|
|
if id, ok := e.X.(*ast.Ident); ok {
|
|
return id.Name
|
|
}
|
|
}
|
|
// The parser accepts much more than just the legal forms.
|
|
return "invalid-type"
|
|
}
|
|
|
|
var knownNameExceptions = map[string]bool{
|
|
"LastInsertId": true, // must match database/sql
|
|
"kWh": true,
|
|
}
|
|
|
|
func isCgoExported(f *ast.FuncDecl) bool {
|
|
if f.Recv != nil || f.Doc == nil {
|
|
return false
|
|
}
|
|
|
|
cgoExport := regexp.MustCompile(fmt.Sprintf("(?m)^//export %s$", regexp.QuoteMeta(f.Name.Name)))
|
|
for _, c := range f.Doc.List {
|
|
if cgoExport.MatchString(c.Text) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
var allCapsRE = regexp.MustCompile(`^[A-Z0-9_]+$`)
|
|
|
|
func isIdent(expr ast.Expr, ident string) bool {
|
|
id, ok := expr.(*ast.Ident)
|
|
return ok && id.Name == ident
|
|
}
|
|
|
|
var zeroLiteral = map[string]bool{
|
|
"false": true, // bool
|
|
// runes
|
|
`'\x00'`: true,
|
|
`'\000'`: true,
|
|
// strings
|
|
`""`: true,
|
|
"``": true,
|
|
// numerics
|
|
"0": true,
|
|
"0.": true,
|
|
"0.0": true,
|
|
"0i": true,
|
|
}
|
|
|
|
func validType(T types.Type) bool {
|
|
return T != nil &&
|
|
T != types.Typ[types.Invalid] &&
|
|
!strings.Contains(T.String(), "invalid type") // good but not foolproof
|
|
}
|
|
|
|
func isPkgDot(expr ast.Expr, pkg, name string) bool {
|
|
sel, ok := expr.(*ast.SelectorExpr)
|
|
return ok && isIdent(sel.X, pkg) && isIdent(sel.Sel, name)
|
|
}
|
|
|
|
func srcLine(src []byte, p token.Position) string {
|
|
// Run to end of line in both directions if not at line start/end.
|
|
lo, hi := p.Offset, p.Offset+1
|
|
for lo > 0 && src[lo-1] != '\n' {
|
|
lo--
|
|
}
|
|
for hi < len(src) && src[hi-1] != '\n' {
|
|
hi++
|
|
}
|
|
return string(src[lo:hi])
|
|
}
|
|
|
|
// pick yields a list of nodes by picking them from a sub-ast with root node n.
|
|
// Nodes are selected by applying the fselect function
|
|
// f function is applied to each selected node before inseting it in the final result.
|
|
// If f==nil then it defaults to the identity function (ie it returns the node itself)
|
|
func pick(n ast.Node, fselect func(n ast.Node) bool, f func(n ast.Node) []ast.Node) []ast.Node {
|
|
var result []ast.Node
|
|
|
|
if n == nil {
|
|
return result
|
|
}
|
|
|
|
if f == nil {
|
|
f = func(n ast.Node) []ast.Node { return []ast.Node{n} }
|
|
}
|
|
|
|
onSelect := func(n ast.Node) {
|
|
result = append(result, f(n)...)
|
|
}
|
|
p := picker{fselect: fselect, onSelect: onSelect}
|
|
ast.Walk(p, n)
|
|
return result
|
|
}
|
|
|
|
func pickFromExpList(l []ast.Expr, fselect func(n ast.Node) bool, f func(n ast.Node) []ast.Node) []ast.Node {
|
|
result := make([]ast.Node, 0)
|
|
for _, e := range l {
|
|
result = append(result, pick(e, fselect, f)...)
|
|
}
|
|
return result
|
|
}
|
|
|
|
type picker struct {
|
|
fselect func(n ast.Node) bool
|
|
onSelect func(n ast.Node)
|
|
}
|
|
|
|
func (p picker) Visit(node ast.Node) ast.Visitor {
|
|
if p.fselect == nil {
|
|
return nil
|
|
}
|
|
|
|
if p.fselect(node) {
|
|
p.onSelect(node)
|
|
}
|
|
|
|
return p
|
|
}
|
|
|
|
// isBoolOp returns true if the given token corresponds to
|
|
// a bool operator
|
|
func isBoolOp(t token.Token) bool {
|
|
switch t {
|
|
case token.LAND, token.LOR, token.EQL, token.NEQ:
|
|
return true
|
|
}
|
|
|
|
return false
|
|
}
|
|
|
|
const (
|
|
trueName = "true"
|
|
falseName = "false"
|
|
)
|
|
|
|
func isExprABooleanLit(n ast.Node) (lexeme string, ok bool) {
|
|
oper, ok := n.(*ast.Ident)
|
|
|
|
if !ok {
|
|
return "", false
|
|
}
|
|
|
|
return oper.Name, (oper.Name == trueName || oper.Name == falseName)
|
|
}
|
|
|
|
// gofmt returns a string representation of an AST subtree.
|
|
func gofmt(x interface{}) string {
|
|
buf := bytes.Buffer{}
|
|
fs := token.NewFileSet()
|
|
printer.Fprint(&buf, fs, x)
|
|
return buf.String()
|
|
}
|