From 86aa85820f21b54df428886797751be4c3ce26c4 Mon Sep 17 00:00:00 2001
From: devlights <gsf.zero1@devlights.onmicrosoft.com>
Date: Mon, 12 Apr 2021 09:33:00 +0000
Subject: [PATCH] Add examples (#356)

---
 internal/examples/basic/examples.go           |  2 +
 internal/examples/basic/methods/README.md     |  7 ++++
 internal/examples/basic/methods/doc.go        |  4 ++
 internal/examples/basic/methods/examples.go   | 19 +++++++++
 .../examples/basic/methods/pointer_or_not.go  | 39 +++++++++++++++++++
 5 files changed, 71 insertions(+)
 create mode 100644 internal/examples/basic/methods/README.md
 create mode 100644 internal/examples/basic/methods/doc.go
 create mode 100644 internal/examples/basic/methods/examples.go
 create mode 100644 internal/examples/basic/methods/pointer_or_not.go

diff --git a/internal/examples/basic/examples.go b/internal/examples/basic/examples.go
index 82f720c9..f3782325 100644
--- a/internal/examples/basic/examples.go
+++ b/internal/examples/basic/examples.go
@@ -27,6 +27,7 @@ import (
 	"github.com/devlights/try-golang/internal/examples/basic/logging"
 	"github.com/devlights/try-golang/internal/examples/basic/maps"
 	"github.com/devlights/try-golang/internal/examples/basic/maths"
+	"github.com/devlights/try-golang/internal/examples/basic/methods"
 	"github.com/devlights/try-golang/internal/examples/basic/network"
 	"github.com/devlights/try-golang/internal/examples/basic/runtimes"
 	"github.com/devlights/try-golang/internal/examples/basic/scope"
@@ -87,6 +88,7 @@ func (r *register) Regist(m mappings.ExampleMapping) {
 	logging.NewRegister().Regist(m)
 	maps.NewRegister().Regist(m)
 	maths.NewRegister().Regist(m)
+	methods.NewRegister().Regist(m)
 	network.NewRegister().Regist(m)
 	runtimes.NewRegister().Regist(m)
 	scope.NewRegister().Regist(m)
diff --git a/internal/examples/basic/methods/README.md b/internal/examples/basic/methods/README.md
new file mode 100644
index 00000000..9ab9638c
--- /dev/null
+++ b/internal/examples/basic/methods/README.md
@@ -0,0 +1,7 @@
+# サンプルリスト
+
+このディレクトリには以下のサンプルがあります。
+
+|file|example name|note|
+|----|------------|----|
+|pointer\_or\_not.go|methods\_pointer\_or\_not|メソッドのレシーバーをポインタで宣言するかしないかの違いについてのサンプルです.|
diff --git a/internal/examples/basic/methods/doc.go b/internal/examples/basic/methods/doc.go
new file mode 100644
index 00000000..333ed992
--- /dev/null
+++ b/internal/examples/basic/methods/doc.go
@@ -0,0 +1,4 @@
+/*
+Package methods -- メソッドについてのサンプルが配置されているパッケージです。
+*/
+package methods
diff --git a/internal/examples/basic/methods/examples.go b/internal/examples/basic/methods/examples.go
new file mode 100644
index 00000000..8c89254a
--- /dev/null
+++ b/internal/examples/basic/methods/examples.go
@@ -0,0 +1,19 @@
+package methods
+
+import (
+	"github.com/devlights/try-golang/pkg/mappings"
+)
+
+type (
+	register struct{}
+)
+
+// NewRegister -- このパッケージ用のサンプルを登録する mappings.Register を生成します。
+func NewRegister() mappings.Register {
+	return new(register)
+}
+
+// Regist -- 登録します.
+func (r *register) Regist(m mappings.ExampleMapping) {
+	m["methods_pointer_or_not"] = PointerOrNot
+}
diff --git a/internal/examples/basic/methods/pointer_or_not.go b/internal/examples/basic/methods/pointer_or_not.go
new file mode 100644
index 00000000..c2a229e0
--- /dev/null
+++ b/internal/examples/basic/methods/pointer_or_not.go
@@ -0,0 +1,39 @@
+package methods
+
+import "github.com/devlights/gomy/output"
+
+type (
+	_nonPointerReceiver struct {
+		val int
+	}
+
+	_pointerReceiver struct {
+		val int
+	}
+)
+
+func (me _nonPointerReceiver) update(val int) {
+	me.val = val
+}
+
+func (me *_pointerReceiver) update(val int) {
+	me.val = val
+}
+
+// PointerOrNot は、メソッドのレシーバーをポインタで宣言するかしないかの違いについてのサンプルです。
+func PointerOrNot() error {
+	var (
+		nonPointer = _nonPointerReceiver{}
+		pointer    = _pointerReceiver{}
+	)
+
+	// これは内部の値が更新されない
+	nonPointer.update(100)
+	// これは内部の値が更新される
+	pointer.update(100)
+
+	output.Stdoutl("[non-pointer]", nonPointer.val)
+	output.Stdoutl("[pointer    ]", pointer.val)
+
+	return nil
+}