{"id":207699,"date":"2025-07-08T08:39:56","date_gmt":"2025-07-08T00:39:56","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207699\/"},"modified":"2025-07-08T08:39:56","modified_gmt":"2025-07-08T00:39:56","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-go-analysis-%e6%9f%a5%e6%89%be-ident-%e7%9a%84%e5%a3%b0%e6%98%8e%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207699\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 go\/analysis \u67e5\u627e Ident \u7684\u58f0\u660e\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u4f7f\u7528 go\/analysis \u67e5\u627e Ident \u7684\u58f0\u660e\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-24 19:12:33<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u79ef\u7d2f\u77e5\u8bc6\uff0c\u80dc\u8fc7\u79ef\u84c4\u91d1\u94f6\uff01\u6bd5\u7adf\u5728Golang\u5f00\u53d1\u7684\u8fc7\u7a0b\u4e2d\uff0c\u4f1a\u9047\u5230\u5404\u79cd\u5404\u6837\u7684\u95ee\u9898\uff0c\u5f80\u5f80\u90fd\u662f\u4e00\u4e9b\u7ec6\u8282\u77e5\u8bc6\u70b9\u8fd8\u6ca1\u6709\u638c\u63e1\u597d\u800c\u5bfc\u81f4\u7684\uff0c\u56e0\u6b64\u57fa\u7840\u77e5\u8bc6\u70b9\u7684\u79ef\u7d2f\u662f\u5f88\u91cd\u8981\u7684\u3002\u4e0b\u9762\u672c\u6587\u300a\u5982\u4f55\u4f7f\u7528 go\/analysis \u67e5\u627e Ident \u7684\u58f0\u660e\uff1f\u300b\uff0c\u5c31\u5e26\u5927\u5bb6\u8bb2\u89e3\u4e00\u4e0b\u77e5\u8bc6\u70b9\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u6211\u4f7f\u7528 go\/analysis \u521b\u5efa\u6211\u81ea\u5df1\u7684\u9759\u6001\u5206\u6790\u5de5\u5177\u3002\u6211\u8fd8\u662f\u4e0d\u77e5\u9053\u5982\u4f55\u4eceast.ident\u4e2d\u627e\u5230def\u4fe1\u606f\u3002<\/p>\n

\u8fd9\u662f\u6211\u7684\u6d4b\u8bd5\u6570\u636e<\/p>\n

package randomcheck\nfunc xxx() {\n}\nfunc demo()  {\n    xxx()\n}<\/pre>\n
\u8fd8\u6709\u6211\u81ea\u5df1\u7684\u5206\u6790\u5668<\/p>\n
import (\n    \"fmt\"\n    \"go\/ast\"\n    \"golang.org\/x\/tools\/go\/analysis\"\n    \"golang.org\/x\/tools\/go\/analysis\/passes\/inspect\"\n)\n\nvar name string \/\/ -name flag\nvar Analyzer = &analysis.Analyzer{\n    Name:     \"fft\",\n    Requires: []*analysis.Analyzer{inspect.Analyzer},\n    Run:      run,\n}\n\/\/pass.Fset.Position(name.Pos())\nfunc run(pass *analysis.Pass) (interface{}, error) {\n    for _, f := range pass.Files {\n        ast.Inspect(f, func(node ast.Node) bool {\n            name,ok := node.(*ast.Ident)\n            if !ok {\n                return true\n            }\n            if name == nil {\n                return true\n            }\n            if pass.TypesInfo.Defs[name] != nil {\n                fmt.Println(\"def: \" ,name)\n            } else {\n                fmt.Println(\"use: \", name)\n            }\n            return true\n        })\n    }\n\n    return nil, nil\n}\n\n\noutput:\n\nuse:  randomcheck\ndef:  xxx\ndef:  demo\nuse:  xxx<\/pre>\n
\u6211\u9700\u8981\u76f4\u63a5\u4eceuse:xxx<\/strong>\u627e\u5230def\u4fe1\u606fdef:xxx<\/strong>\uff0c\u4f46\u662f\u6211\u5728pass.typesinfo\u4e2d\u627e\u4e0d\u5230\u6709\u7528\u7684\u4fe1\u606f<\/p>\n
 <\/p>\n
\u89e3\u51b3\u65b9\u6848<\/h2>\n
 <\/p>\n
\u60a8\u662f\u5426\u5728\u5bfb\u627e objectof<\/code> \u65b9\u6cd5\uff1f\u8fd9\u662f\u7ecf\u8fc7\u4e00\u4e9b\u4fee\u6539\u7684\u7248\u672c\uff1a<\/p>\n
func run(pass *analysis.pass) (interface{}, error) {\n    for _, f := range pass.files {\n        ast.inspect(f, func(node ast.node) bool {\n            name, ok := node.(*ast.ident)\n            if !ok {\n                return true\n            }\n            if name == nil {\n                return true\n            }\n\n            fmt.println(\"ident:\", nodestring(node, pass.fset))\n            obj := pass.typesinfo.objectof(name)\n            fmt.println(obj)\n            if obj != nil {\n                fmt.println(\"  pos:\", pass.fset.position(obj.pos()))\n            }\n            return true\n        })\n    }\n\n    return nil, nil\n}\n\n\/\/ nodestring formats a syntax tree in the style of gofmt.\nfunc nodestring(n ast.node, fset *token.fileset) string {\n    var buf bytes.buffer\n    format.node(&buf, fset, n)\n    return buf.string()\n}<\/pre>\n
\u5728\u793a\u4f8b\u8f93\u5165\u6587\u4ef6\u4e0a\u8fd0\u884c\u65f6\uff0c\u5b83\u663e\u793a\uff1a<\/p>\n
ident: randomcheck\n<nil>\nident: xxx\nfunc command-line-arguments.xxx()\n  pos: \/home\/eliben\/temp\/randomcheck.go:3:6\nident: demo\nfunc command-line-arguments.demo()\n  pos: \/home\/eliben\/temp\/randomcheck.go:5:6\nident: xxx\nfunc command-line-arguments.xxx()\n  pos: \/home\/eliben\/temp\/randomcheck.go:3:6<\/pre>\n
\u8bf7\u6ce8\u610f\uff0c\u6700\u540e\u4e00\u4e2a id xxx<\/code> \u662f\u4f5c\u4e3a\u5bf9\u9876\u7ea7\u51fd\u6570 xxx()<\/code> \u53ca\u5176\u6b63\u786e\u4f4d\u7f6e\u7b49\u7684\u5f15\u7528\u800c\u627e\u5230\u7684\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u5982\u4f55\u4f7f\u7528 go\/analysis \u67e5\u627e Ident \u7684\u58f0\u660e\uff1f\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8e\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207699","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207699","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207699"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207699\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207699"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207699"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207699"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}