Initial commit

units/power/power.go

@@ -0,0 +1,37 @@
+package power
+
+import (
+	"code.google.com/p/go.net/context"
+)
+
+type (
+	PowerResult struct {
+		Num    int
+		Power  int
+		Result int
+	}
+)
+
+func Power2(ctx context.Context) context.Context {
+	v := ctx.Value("num").(int)
+	res := PowerResult{Num: v, Power: 2, Result: v * v}
+	ctx = context.WithValue(ctx, "power_result", res)
+
+	return ctx
+}
+
+func Power3(ctx context.Context) context.Context {
+	v := ctx.Value("num").(int)
+	res := PowerResult{Num: v, Power: 3, Result: v * v * v}
+	ctx = context.WithValue(ctx, "power_result", res)
+
+	return ctx
+}
+
+func Power5(ctx context.Context) context.Context {
+	v := ctx.Value("num").(int)
+	res := PowerResult{Num: v, Power: 5, Result: v * v * v * v * v}
+	ctx = context.WithValue(ctx, "power_result", res)
+
+	return ctx
+}