{"id":555,"date":"2019-07-01T14:50:37","date_gmt":"2019-07-01T05:50:37","guid":{"rendered":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/blog\/2019\/07\/01\/metago"},"modified":"2019-07-01T14:50:37","modified_gmt":"2019-07-01T05:50:37","slug":"metago","status":"publish","type":"post","link":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/blog\/2019\/07\/01\/metago\/","title":{"rendered":"Go\u8a00\u8a9e\u3067\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0"},"content":{"rendered":"<p>YouTube\u306e\u30d7\u30ec\u30df\u30a2\u30e0\u4f1a\u54e1\u306b\u5165\u3063\u3066\u3057\u307e\u3044\u3001\u52d5\u753b\u3092\u898b\u308b\u6642\u9593\u304c\u307e\u3059\u307e\u3059\u5897\u3048\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5185\u5c71\u3067\u3059\u3002<\/p>\n<p>\u6700\u8fd1\u306e\u696d\u52d9\u3067\u306f\u3001Go\u8a00\u8a9e\u3092\u66f8\u3044\u3066\u3044\u307e\u3059\u3002\u8a00\u8a9e\u306e\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306f\u7269\u8db3\u308a\u306a\u3055\u3092\u611f\u3058\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u3088\u308a\u3082\u30b7\u30f3\u30d7\u30eb\u3055\u304c\u7d50\u69cb\u6c17\u306b\u5165\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u3001Go\u8a00\u8a9e\u306e\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u3064\u3044\u3066\u3001\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002<\/p>\n<h2 id=\"outline__1\" id=\"\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u306f\">\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u306f<\/h2>\n<p>\u958b\u767a\u696d\u52d9\u3067\u306f\u3001\u4f3c\u305f\u3088\u3046\u306a\u5358\u7d14\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f55\u5ea6\u3082\u66f8\u304f\u5fc5\u8981\u304c\u3042\u308b\u5834\u5408\u304c\u3042\u308a\u307e\u3059\u3002\u30dc\u30a4\u30e9\u30fc\u30d7\u30ec\u30fc\u30c8\u3068\u547c\u3070\u308c\u308b\u3088\u3046\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<br \/>\n\u305d\u306e\u3088\u3046\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u81ea\u52d5\u751f\u6210\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u3066\u3001\u52b9\u7387\u5316\u3059\u308b\u3053\u3068\u306f\u3088\u304f\u3042\u308b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e <strong>\u300c\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u751f\u6210\u3059\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u3053\u3068\u300d<\/strong> \u3092 \u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u547c\u3073\u307e\u3059\u3002<\/p>\n<p>\u7b46\u8005\u304c\u53c2\u52a0\u3057\u3066\u3044\u308b\u30d7\u30ed\u30b8\u30a7\u30af\u30c8\u3067\u306f\u3001\u5b9f\u969b\u306b\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u3053\u3068\u3092\u884c\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<ul>\n<li>AWS Lambda\u306eHandler\u3068\u306a\u308b\u30d7\u30ed\u30b0\u30e9\u30e0\u3068\u547c\u3073\u51fa\u3057\u95a2\u6570\u3092\u81ea\u52d5\u751f\u6210<\/li>\n<li>Go\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u89e3\u6790\u3057\u3066\u3001AWS SAM\u306e\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u3092\u81ea\u52d5\u751f\u6210(\u30d7\u30ed\u30b0\u30e9\u30e0\u3078\u306e\u53c2\u7167\u60c5\u5831\u3092\u81ea\u52d5\u8a2d\u5b9a)<\/li>\n<\/ul>\n<p>\u4f55\u5ea6\u3082\u5358\u7d14\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u3044\u305f\u308a\u3001\u8a2d\u5b9a\u30d5\u30a1\u30a4\u30eb\u306e\u8a18\u8ff0\u30df\u30b9\u3092\u6e1b\u3089\u3057\u305f\u308a\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306f\u3001\u958b\u767a\u696d\u52d9\u3092\u52b9\u7387\u5316\u3059\u308b\u4e0a\u3067\u5f37\u529b\u306a\u624b\u6cd5\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 id=\"outline__2\" id=\"2\u7a2e\u985e\u306e\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\">2\u7a2e\u985e\u306e\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/h2>\n<p>Go\u8a00\u8a9e\u3067\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u884c\u3046\u5834\u5408\u3001\u4ee5\u4e0b\u306e2\u7a2e\u985e\u306e\u65b9\u6cd5\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>reflect\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u3088\u308b\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0(\u5b9f\u884c\u6642)<\/li>\n<li>go\/*\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u3088\u308b\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0(\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306e\u69cb\u6587\u89e3\u6790)<\/li>\n<\/ul>\n<p>\u4eca\u56de\u306f\u3001\u5f8c\u8005\u306e<code>go\/*\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u3088\u308b\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/code>\u306b\u3064\u3044\u3066\u3001\u53d6\u308a\u4e0a\u3052\u307e\u3059\u3002<\/p>\n<h2 id=\"outline__3\" id=\"go-\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u3088\u308b\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\">go\/* \u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u3088\u308b\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0<\/h2>\n<p>go\/*\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u306f\u3001\u300cGo\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u69cb\u6587\u89e3\u6790\u3057\u3001\u64cd\u4f5c\u3092\u884c\u3046API\u300d\u304c\u63d0\u4f9b\u3055\u308c\u3066\u3044\u307e\u3059\u3002<br \/>\n\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3001go\/parser\u306e<code>ParseExpr\u95a2\u6570<\/code>\u306bGo\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u6587\u5b57\u5217\u3068\u3057\u3066\u6e21\u3059\u3068\u3001\u69cb\u6587\u89e3\u6790\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">package main\n\nimport (\n    &quot;fmt&quot;\n    &quot;go\/parser&quot;\n)\n\nfunc main() {\n    expr, _ := parser.ParseExpr(&quot;a * -1&quot;)\n    fmt.Printf(&quot;%#v&quot;, expr)\n}<\/code><\/pre>\n<p>\u4ee5\u4e0b\u304c\u5b9f\u884c\u7d50\u679c\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-go\">*ast.BinaryExpr {\n.  X: *ast.Ident {\n.  .  NamePos: 1\n.  .  Name: &quot;a&quot;\n.  .  Obj: *ast.Object {\n.  .  .  Kind: bad\n.  .  .  Name: &quot;&quot;\n.  .  }\n.  }\n.  OpPos: 3\n.  Op: *\n.  Y: *ast.UnaryExpr {\n.  .  OpPos: 5\n.  .  Op: -\n.  .  X: *ast.BasicLit {\n.  .  .  ValuePos: 6\n.  .  .  Kind: INT\n.  .  .  Value: &quot;1&quot;\n.  .  }\n.  }\n}<\/code><\/pre>\n<p>\u300cast.BinaryExpr\u300d\u300cast.Indent\u300d\u300cOp\u300d\u300cast.UnaryExpr\u300d\u300cast.BasicLit\u300d\u306a\u3069\u3001<br \/>\n\u69cb\u9020\u4f53\u3084\u30e1\u30f3\u30d0\u5909\u6570\u306b\u3088\u3063\u3066\u3001Go\u306e\u69cb\u6587\u3092\u8868\u3057\u3066\u3044\u308b\u306e\u304c\u611f\u3058\u53d6\u308c\u308b\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n\u4e00\u756a\u6700\u521d\u306b\u73fe\u308c\u308b<code>ast.BinaryExpr\u69cb\u9020\u4f53<\/code>\u306f\u3001\uff12\u9805\u6f14\u7b97\u5b50\u3092\u8868\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4eca\u56de\u306f\u5b9f\u4f8b\u3068\u3057\u3066__\u300c\u3042\u308b\u30d1\u30c3\u30b1\u30fc\u30b8\u306b\u542b\u307e\u308c\u3066\u3044\u308b\u3059\u3079\u3066\u306e\u95a2\u6570\u306e\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3059\u308b\u300d__\u3053\u3068\u3092\u8003\u3048\u3066\u307f\u307e\u3059\u3002<\/p>\n<h2 id=\"outline__4\" id=\"\u89e3\u6790\u5bfe\u8c61\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\">\u89e3\u6790\u5bfe\u8c61\u306e\u30d7\u30ed\u30b0\u30e9\u30e0<\/h2>\n<p>\u30b5\u30f3\u30d7\u30eb\u3068\u3057\u3066\u3001\u4ee5\u4e0b\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u89e3\u6790\u5bfe\u8c61\u3068\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">\/\/ sample\/fuga.go\npackage sample\n\nimport &quot;fmt&quot;\n\ntype FugaArg struct {\n        Message string\n}\n\nfunc Fuga(arg FugaArg) error {\n        fmt.Println(arg.Message)\n        return nil\n}\n\n\n\/\/ sample\/hoge.go\npackage sample\n\ntype HogeArg struct {\n        Message string\n}\n\nfunc Hoge(arg *HogeArg) (string, error) {\n        return arg.Message, nil\n}<\/code><\/pre>\n<p>\u5b9f\u969b\u306b\u306f\u3001Fuga\u95a2\u6570 \u3068 Hoge\u95a2\u6570 \u306f\u5225\u3005\u306e\u30d5\u30a1\u30a4\u30eb\u3067\u8a18\u8ff0\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u30b5\u30f3\u30d7\u30eb\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u69cb\u6587\u89e3\u6790\u3057\u305f\u7d50\u679c\u3092\u5358\u7d14\u306b\u51fa\u529b\u3057\u3066\u307f\u307e\u3059\u3002<br \/>\n\u30d1\u30c3\u30b1\u30fc\u30b8\u5185\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u69cb\u6587\u89e3\u6790\u3059\u308b\u306e\u3067\u3001<code>parser.ParseDir<\/code>\u95a2\u6570\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">func main() {\n        packageName := &quot;sample&quot;\n        OutputFuncFromPackage(packageName)\n}\n\nfunc OutputFuncFromPackage(packageName string) error {\n        fset := token.NewFileSet()\n        packages, err := parser.ParseDir(fset, packageName, nil, parser.Mode(0))\n        if err != nil {\n                return err\n        }\n\n        for _, pkg := range packages {\n                ast.Inspect(pkg, func(n ast.Node) bool {\n                        if t, ok := n.(*ast.FuncDecl); ok {\n                                ast.Print(fset, t)\n                                fmt.Println()\n                        }\n                        return true\n                })\n        }\n\n        return nil\n}<\/code><\/pre>\n<p>\u4ee5\u4e0b\u304c\u51fa\u529b\u7d50\u679c\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">*ast.FuncDecl {\n.  Name: *ast.Ident {\n.  .  NamePos: sample\/hoge.go:7:6\n.  .  Name: &quot;Hoge&quot;\n.  .  Obj: *ast.Object {\n.  .  .  Kind: func\n.  .  .  Name: &quot;Hoge&quot;\n.  .  .  Decl: *(obj @ 0)\n.  .  }\n.  }\n.  Type: *ast.FuncType {\n.  .  Func: sample\/hoge.go:7:1\n.  .  Params: *ast.FieldList {\n.  .  .  Opening: sample\/hoge.go:7:10\n.  .  .  List: []*ast.Field (len = 1) {\n.  .  .  .  0: *ast.Field {\n.  .  .  .  .  Names: []*ast.Ident (len = 1) {\n.  .  .  .  .  .  0: *ast.Ident {\n.  .  .  .  .  .  .  NamePos: sample\/hoge.go:7:11\n.  .  .  .  .  .  .  Name: &quot;arg&quot;\n.  .  .  .  .  .  .  Obj: *ast.Object {\n.  .  .  .  .  .  .  .  Kind: var\n.  .  .  .  .  .  .  .  Name: &quot;arg&quot;\n.  .  .  .  .  .  .  .  Decl: *(obj @ 15)\n.  .  .  .  .  .  .  }\n.  .  .  .  .  .  }\n.  .  .  .  .  }\n.  .  .  .  .  Type: *ast.StarExpr {\n.  .  .  .  .  .  Star: sample\/hoge.go:7:15\n.  .  .  .  .  .  X: *ast.Ident {\n.  .  .  .  .  .  .  NamePos: sample\/hoge.go:7:16\n.  .  .  .  .  .  .  Name: &quot;HogeArg&quot;\n.  .  .  .  .  .  .  Obj: *ast.Object {\n.  .  .  .  .  .  .  .  Kind: type\n.  .  .  .  .  .  .  .  Name: &quot;HogeArg&quot;\n.  .  .  .  .  .  .  .  Decl: *ast.TypeSpec {\n.  .  .  .  .  .  .  .  .  Name: *ast.Ident {\n.  .  .  .  .  .  .  .  .  .  NamePos: sample\/hoge.go:3:6\n.  .  .  .  .  .  .  .  .  .  Name: &quot;HogeArg&quot;\n.  .  .  .  .  .  .  .  .  .  Obj: *(obj @ 32)\n.  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  Assign: -\n.  .  .  .  .  .  .  .  .  Type: *ast.StructType {\n.  .  .  .  .  .  .  .  .  .  Struct: sample\/hoge.go:3:14\n.  .  .  .  .  .  .  .  .  .  Fields: *ast.FieldList {\n.  .  .  .  .  .  .  .  .  .  .  Opening: sample\/hoge.go:3:21\n.  .  .  .  .  .  .  .  .  .  .  List: []*ast.Field (len = 1) {\n.  .  .  .  .  .  .  .  .  .  .  .  0: *ast.Field {\n.  .  .  .  .  .  .  .  .  .  .  .  .  Names: []*ast.Ident (len = 1) {\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  0: *ast.Ident {\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  NamePos: sample\/hoge.go:4:2\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Name: &quot;Message&quot;\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Obj: *ast.Object {\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Kind: var\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Name: &quot;Message&quot;\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  .  Decl: *(obj @ 47)\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  .  .  .  .  Type: *ast.Ident {\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  NamePos: sample\/hoge.go:4:10\n.  .  .  .  .  .  .  .  .  .  .  .  .  .  Name: &quot;string&quot;\n.  .  .  .  .  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  .  .  Closing: sample\/hoge.go:5:1\n.  .  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  .  .  Incomplete: false\n.  .  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  .  }\n.  .  .  .  .  .  .  }\n.  .  .  .  .  .  }\n.  .  .  .  .  }\n.  .  .  .  }\n.  .  .  }\n.  .  .  Closing: sample\/hoge.go:7:23\n.  .  }\n.  .  Results: *ast.FieldList {\n.  .  .  Opening: sample\/hoge.go:7:25\n.  .  .  List: []*ast.Field (len = 2) {\n.  .  .  .  0: *ast.Field {\n.  .  .  .  .  Type: *ast.Ident {\n.  .  .  .  .  .  NamePos: sample\/hoge.go:7:26\n.  .  .  .  .  .  Name: &quot;string&quot;\n.  .  .  .  .  }\n.  .  .  .  }\n.  .  .  .  1: *ast.Field {\n.  .  .  .  .  Type: *ast.Ident {\n.  .  .  .  .  .  NamePos: sample\/hoge.go:7:34\n.  .  .  .  .  .  Name: &quot;error&quot;\n.  .  .  .  .  }\n.  .  .  .  }\n.  .  .  }\n.  .  .  Closing: sample\/hoge.go:7:39\n.  .  }\n.  }\n.  Body: *ast.BlockStmt {\n.  .  Lbrace: sample\/hoge.go:7:41\n.  .  List: []ast.Stmt (len = 1) {\n.  .  .  0: *ast.ReturnStmt {\n.  .  .  .  Return: sample\/hoge.go:8:2\n.  .  .  .  Results: []ast.Expr (len = 2) {\n.  .  .  .  .  0: *ast.SelectorExpr {\n.  .  .  .  .  .  X: *ast.Ident {\n.  .  .  .  .  .  .  NamePos: sample\/hoge.go:8:9\n.  .  .  .  .  .  .  Name: &quot;arg&quot;\n.  .  .  .  .  .  .  Obj: *(obj @ 20)\n.  .  .  .  .  .  }\n.  .  .  .  .  .  Sel: *ast.Ident {\n.  .  .  .  .  .  .  NamePos: sample\/hoge.go:8:13\n.  .  .  .  .  .  .  Name: &quot;Message&quot;\n.  .  .  .  .  .  }\n.  .  .  .  .  }\n.  .  .  .  .  1: *ast.Ident {\n.  .  .  .  .  .  NamePos: sample\/hoge.go:8:22\n.  .  .  .  .  .  Name: &quot;nil&quot;\n.  .  .  .  .  }\n.  .  .  .  }\n.  .  .  }\n.  .  }\n.  .  Rbrace: sample\/hoge.go:9:1\n.  }\n}<\/code><\/pre>\n<p>\u69cb\u6587\u89e3\u6790\u6728\u3092\u8868\u73fe\u3057\u3066\u3044\u308b\u69cb\u9020\u4f53\u304b\u3089\u3001\u5fc5\u8981\u306a\u60c5\u5831\u3060\u3051\u3092\u53d6\u308b\u969b\u306b\u3001\u3069\u306e\u3088\u3046\u306a\u69cb\u9020\u306b\u306a\u3063\u3066\u3044\u308b\u306e\u304b\u3092\u628a\u63e1\u3067\u304d\u308b\u3088\u3046\u306b\u3001\u4e0a\u8a18\u306e\u3088\u3046\u306b\u51fa\u529b\u3057\u3066\u307f\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<h2 id=\"outline__5\" id=\"\u95a2\u6570\u60c5\u5831\u3092\u53d6\u308a\u51fa\u3059\u51e6\u7406\">\u95a2\u6570\u60c5\u5831\u3092\u53d6\u308a\u51fa\u3059\u51e6\u7406<\/h2>\n<p>\u3042\u3068\u306f\u3001\u89e3\u6790\u7d50\u679c\u3092\u51fa\u529b\u3057\u305f\u3082\u306e\u3092\u898b\u306a\u304c\u3089\u3001\u6b32\u3057\u3044\u60c5\u5831\u3092\u53d6\u5f97\u3059\u308b\u51e6\u7406\u3092\u66f8\u3044\u3066\u3044\u304f\u306e\u307f\u3067\u3059\u3002<br \/>\n\u4ee5\u4e0b\u306f\u3001\u95a2\u6570\u306e\u4e00\u89a7\u3092\u53d6\u5f97\u3059\u308b\u51e6\u7406\u3092\u884c\u3046\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u3059\u3002<\/p>\n<pre><code class=\"language-go\">func main() {\n  packageName := &quot;sample&quot;\n  funcs, err := GetFuncFromPackage(packageName)\n  if err != nil {\n    panic(err)\n  }\n  pp.Println(funcs)\n}\n\ntype GoFunc struct {\n        FuncName string\n        Args     []*GoFuncArg\n        Returns  []string\n}\n\ntype GoFuncArg struct {\n        Name []string\n        Type string\n}\n\nfunc GetFuncArgTypeStr(t ast.Expr) string {\n  typeStr := &quot;&quot;\n  var symbols []string\n  ast.Inspect(t, func(n ast.Node) bool {\n    switch n.(type) {\n    case *ast.SelectorExpr:\n            sel := n.(*ast.SelectorExpr)\n            typeStr = fmt.Sprintf(&quot;%s.%s&quot;, sel.X, sel.Sel.Name)\n    case *ast.Ident:\n            if typeStr == &quot;&quot; {\n                    typeStr = n.(*ast.Ident).Name\n            }\n    case *ast.InterfaceType:\n            typeStr = &quot;interface{}&quot;\n    case *ast.ArrayType:\n            symbols = append(symbols, &quot;[]&quot;)\n    case *ast.MapType:\n            m := n.(*ast.MapType)\n            typeStr = fmt.Sprintf(&quot;map[%s]%s&quot;, m.Key, m.Value)\n    case *ast.StarExpr:\n            symbols = append(symbols, &quot;*&quot;)\n    }\n    return true\n  })\n\n  return fmt.Sprintf(&quot;%s%s&quot;, strings.Join(symbols, &quot;&quot;), typeStr)\n}\n\nfunc GetFuncFromPackage(packageName string) ([]*GoFunc, error) {\n  fset := token.NewFileSet()\n  packages, err := parser.ParseDir(fset, packageName, nil, parser.Mode(0))\n  if err != nil {\n          return nil, err\n  }\n\n  var funcs []*GoFunc\n\n  for _, pkg := range packages {\n    ast.Inspect(pkg, func(n ast.Node) bool {\n     if t, ok := n.(*ast.FuncDecl); ok {\n\n       \/\/ \u30e1\u30bd\u30c3\u30c9 \u306f\u9664\u5916\n       if t.Recv != nil {\n               return true\n       }\n\n       \/\/ \u30c6\u30b9\u30c8 \u306f\u9664\u5916\n       if strings.HasPrefix(t.Name.Name, &quot;Test&quot;) {\n               return true\n       }\n\n       \/\/ \u95a2\u6570\u306e\u5f15\u6570\u60c5\u5831\n       var argDecls = make([]*GoFuncArg, len(t.Type.Params.List))\n       for i, l := range t.Type.Params.List {\n\n         \/\/ (a, b string, c int) \u306e\u3088\u3046\u306a\u5f15\u6570\u3060\u3063\u305f\u5834\u5408\u3001\n         \/\/ [a, b] \u3068 [c] \u306e\u3088\u3046\u306a\u914d\u5217\u3067\u540d\u524d\u304c\u8fd4\u3063\u3066\u304f\u308b\n         var names = make([]string, len(l.Names))\n         for i := range l.Names {\n                 names[i] = l.Names[i].Name\n         }\n\n         \/\/ \u5f15\u6570\u306e\u578b\u60c5\u5831\u3092\u53d6\u5f97\n         typeStr := GetFuncArgTypeStr(l.Type)\n\n         \/\/ testing.T\u306a\u3069\u306e\u30c6\u30b9\u30c8\u95a2\u6570\u3067\u5b9a\u7fa9\u3055\u308c\u308b\u5f15\u6570\u3060\u3063\u305f\u5834\u5408\u306f\u9664\u5916\u3059\u308b\n         if strings.HasSuffix(typeStr, &quot;.T&quot;) {\n                 return true\n         }\n\n         \/\/ \u5f15\u6570\u60c5\u5831\u3092\u7c21\u5358\u306b\u53c2\u7167\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u69cb\u9020\u4f53\u306b\u4fdd\u5b58\u3057\u3066\u304a\u304f\n         argDecls[i] = &amp;GoFuncArg{\n                 Name: names,\n                 Type: typeStr,\n         }\n       }\n\n       \/\/ \u95a2\u6570\u306e\u8fd4\u308a\u5024\u60c5\u5831\n       retStr := &quot;&quot;\n       var retDecls []string\n       if t.Type.Results != nil {\n\n         \/\/ (int, float, string) \u306e\u3088\u3046\u306a\u8fd4\u308a\u5024\u306e\u578b\u60c5\u5831\u30ea\u30b9\u30c8\u3092\u53d6\u5f97\u3059\u308b\n         retDecls = make([]string, len(t.Type.Results.List))\n         for i, l := range t.Type.Results.List {\n                 \/\/ \u5f15\u6570\u306e\u578b\u60c5\u5831\u3092\u53d6\u5f97\n                 retDecls[i] = GetFuncArgTypeStr(l.Type)\n         }\n\n         if len(retDecls) != 0 {\n                 retStr = strings.Join(retDecls, &quot;, &quot;)\n                 \/\/ \u8fd4\u308a\u5024\u304c\uff12\u3064\u4ee5\u4e0a\u306e\u5834\u5408\u306f\u3001 (int, float) \u306e\u3088\u3046\u306b\u30ab\u30c3\u30b3\u3092\u4ed8\u3051\u308b\n                 if len(retDecls) &gt; 1 {\n                         retStr = fmt.Sprintf(&quot;(%s)&quot;, retStr)\n                 }\n         }\n       }\n\n       \/\/ \u95a2\u6570\u60c5\u5831\u3092\u7c21\u5358\u306b\u53c2\u7167\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u69cb\u9020\u4f53\u306b\u4fdd\u5b58\u3057\u3066\u304a\u304f\n       funcs = append(funcs, &amp;GoFunc{\n               FuncName: t.Name.Name, \/\/ \u95a2\u6570\u540d\n               Args:     argDecls,    \/\/ \u95a2\u6570\u306e\u5f15\u6570\u60c5\u5831\n               Returns:  retDecls,    \/\/ \u95a2\u6570\u306e\u8fd4\u308a\u5024\u60c5\u5831\n       })\n     }\n     return true\n    })\n  }\n\n  return funcs, nil\n}\n<\/code><\/pre>\n<p>\u4ee5\u4e0b\u306f\u3001\u51fa\u529b\u7d50\u679c\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre><code class=\"language-go\">[]*main.GoFunc{\n  &amp;main.GoFunc{\n    FuncName: &quot;Hoge&quot;,\n    Args:     []*main.GoFuncArg{\n      &amp;main.GoFuncArg{\n        Name: []string{\n          &quot;arg&quot;,\n        },\n        Type: &quot;*HogeArg&quot;,\n      },\n    },\n    Returns: []string{\n      &quot;string&quot;,\n      &quot;error&quot;,\n    },\n  },\n  &amp;main.GoFunc{\n    FuncName: &quot;Fuga&quot;,\n    Args:     []*main.GoFuncArg{\n      &amp;main.GoFuncArg{\n        Name: []string{\n          &quot;arg&quot;,\n        },\n        Type: &quot;FugaArg&quot;,\n      },\n    },\n    Returns: []string{\n      &quot;error&quot;,\n    },\n  },\n}<\/code><\/pre>\n<p>\u751f\u306e\u89e3\u6790\u7d50\u679c\u3088\u308a\u3001\u95a2\u6570\u306e\u60c5\u5831\u3092\u53d6\u308a\u51fa\u3057\u3084\u3059\u3044\u5f62\u306b\u306a\u3063\u3066\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u3002<br \/>\n\u3053\u306e\u60c5\u5831\u3092\u57fa\u306b\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u751f\u6210\u3059\u308b\u51e6\u7406\u3092\u66f8\u3044\u3066\u3044\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2 id=\"outline__6\" id=\"\u307e\u3068\u3081\">\u307e\u3068\u3081<\/h2>\n<p>Go\u8a00\u8a9e\u3067\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3092\u3059\u308b\u624b\u6cd5\u3092\u3054\u7d39\u4ecb\u3057\u307e\u3057\u305f\u3002<br \/>\n\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306f\u300c\u9ed2\u9b54\u8853\u300d\u3068\u547c\u3070\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u3001\u53d6\u308a\u6271\u3044\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<br \/>\n\u3057\u304b\u3057\u3001\u3046\u307e\u304f\u884c\u3051\u3070\u958b\u767a\u696d\u52d9\u306e\u52b9\u7387\u5316\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002<br \/>\n\u305c\u3072\u3068\u3082\u6311\u6226\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<h2 id=\"outline__7\" id=\"\u53c2\u8003\u30ea\u30f3\u30af\">\u53c2\u8003\u30ea\u30f3\u30af<\/h2>\n<p>Go\u306e\u305f\u3081\u306eGo<br \/>\n<a href=\"https:\/\/motemen.github.io\/go-for-go-book\/\">https:\/\/motemen.github.io\/go-for-go-book\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>YouTube\u306e\u30d7\u30ec\u30df\u30a2\u30e0\u4f1a\u54e1\u306b\u5165\u3063\u3066\u3057\u307e\u3044\u3001\u52d5\u753b\u3092\u898b\u308b\u6642\u9593\u304c\u307e\u3059\u307e\u3059\u5897\u3048\u3066\u3057\u307e\u3044\u307e\u3057\u305f\u3002\u30a8\u30f3\u30b8\u30cb\u30a2\u306e\u5185\u5c71\u3067\u3059\u3002 \u6700\u8fd1\u306e\u696d\u52d9\u3067\u306f\u3001Go\u8a00\u8a9e\u3092\u66f8\u3044\u3066\u3044\u307e\u3059\u3002\u8a00\u8a9e\u306e\u6a5f\u80fd\u306b\u3064\u3044\u3066\u306f\u7269\u8db3\u308a\u306a\u3055\u3092\u611f\u3058\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u304c\u3001\u305d\u308c\u3088\u308a\u3082\u30b7\u30f3\u30d7\u30eb\u3055\u304c\u7d50\u69cb\u6c17\u306b\u5165\u3063\u3066\u3044\u307e\u3059\u3002 \u4eca\u56de\u306f\u3001Go\u8a00\u8a9e\u306e\u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u306b\u3064\u3044\u3066\u3001\u3054\u7d39\u4ecb\u3057\u307e\u3059\u3002 \u30e1\u30bf\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u3068\u306f \u958b\u767a\u696d\u52d9\u3067\u306f\u3001\u4f3c\u305f\u3088\u3046\u306a\u5358\u7d14\u306a\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u4f55\u5ea6\u3082\u66f8\u304f\u5fc5\u8981\u304c [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":826,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[21],"tags":[128,264],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/posts\/555"}],"collection":[{"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/comments?post=555"}],"version-history":[{"count":0,"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/posts\/555\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/media\/826"}],"wp:attachment":[{"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/media?parent=555"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/categories?post=555"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/p-corporate-blog-cms.mmmcorp.co.jp\/wp-json\/wp\/v2\/tags?post=555"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}