From a1aeeaf6b4c93d12b46cbbd386308787f83597dc Mon Sep 17 00:00:00 2001 From: Nicolas MASSE Date: Tue, 8 Mar 2022 14:40:38 +0100 Subject: [PATCH] initial commit --- fx/main.go | 46 +++++++++++++++++++++ go.mod | 5 +++ go.sum | 67 +++++++++++++++++++++++++++++++ types.go | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++ usual/main.go | 25 ++++++++++++ 5 files changed, 251 insertions(+) create mode 100644 fx/main.go create mode 100644 go.mod create mode 100644 go.sum create mode 100644 types.go create mode 100644 usual/main.go diff --git a/fx/main.go b/fx/main.go new file mode 100644 index 0000000..8a7faca --- /dev/null +++ b/fx/main.go @@ -0,0 +1,46 @@ +package main + +import ( + "io" + "os" + + lib "github.com/nmasse-itix/golang-fx" + "go.uber.org/fx" +) + +func childs() ([]lib.Child, error) { + c1, err := lib.NewChild(2) + if err != nil { + return nil, err + } + + c2, err := lib.NewChild(5) + if err != nil { + return nil, err + } + + return []lib.Child{c1, c2}, nil +} + +func main() { + fx.New( + fx.Supply( + fx.Annotated{Name: "house_name", Target: "New-York"}, + fx.Annotated{Name: "john_name", Target: "John"}, + fx.Annotated{Name: "jane_name", Target: "Jane"}, + fx.Annotated{Name: "cat1_name", Target: "Gros Minet"}, + fx.Annotated{Name: "cat2_name", Target: "Isidore"}, + ), + fx.Provide( + fx.Annotate(lib.NewCat, fx.ParamTags(`name:"cat1_name"`), fx.ResultTags(`group:"cats"`)), + fx.Annotate(lib.NewCat, fx.ParamTags(`name:"cat2_name"`), fx.ResultTags(`group:"cats"`)), + fx.Annotate(lib.NewAdult, fx.ParamTags(`name:"john_name"`, `group:"childs"`), fx.ResultTags(`group:"adults"`)), + fx.Annotate(lib.NewAdult, fx.ParamTags(`name:"jane_name"`, `group:"childs"`), fx.ResultTags(`group:"adults"`)), + fx.Annotate(childs, fx.ResultTags(`group:"childs"`)), + fx.Annotate(lib.NewHouse, fx.ParamTags(`name:"house_name"`, `group:"adults"`, `group:"cats"`)), + func() io.Writer { return os.Stdout }, + ), + fx.Invoke(lib.House.Present), + fx.NopLogger, + ).Run() +} diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..030c56d --- /dev/null +++ b/go.mod @@ -0,0 +1,5 @@ +module github.com/nmasse-itix/golang-fx + +go 1.16 + +require go.uber.org/fx v1.17.0 // indirect diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..2ee99cd --- /dev/null +++ b/go.sum @@ -0,0 +1,67 @@ +github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/benbjohnson/clock v1.3.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI= +github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck= +github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo= +github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ= +github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI= +github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFRclV5y23lUDJ4= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI= +github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4= +github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/yuin/goldmark v1.3.5/go.mod h1:mwnBkeHKe2W/ZEtQ+71ViKU8L12m81fl3OWwC1Zlc8k= +go.uber.org/atomic v1.6.0 h1:Ezj3JGmsOnG1MoRWQkPBsKLe9DwWD9QeXzTRzzldNVk= +go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ= +go.uber.org/dig v1.14.0 h1:VmGvIH45/aapXPQkaOrK5u4B5B7jxZB98HM/utx0eME= +go.uber.org/dig v1.14.0/go.mod h1:jHAn/z1Ld1luVVyGKOAIFYz/uBFqKjjEEdIqVAqfQ2o= +go.uber.org/fx v1.17.0 h1:e65QHcKzyD58oP6UaA7aYF96XRvnN0pF/rHnwSeRc6I= +go.uber.org/fx v1.17.0/go.mod h1:SPbDO5WX0JpqR7C/JW09j7WC+gWI8kRG1uGM9mGsIH0= +go.uber.org/goleak v1.1.11/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ= +go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A= +go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU= +go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA= +go.uber.org/zap v1.16.0 h1:uFRZXykJGK9lLY4HtgSw44DnIcAM+kRBP7x5m+NpAOM= +go.uber.org/zap v1.16.0/go.mod h1:MA8QOfq0BHJwdXa996Y4dYkAqRKB8/1K1QMMZVaNZjQ= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto 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-0,0 +1,108 @@ +package lib + +import ( + "fmt" + "io" + "log" + "strings" +) + +type Cat interface { + String() string +} + +type MyCat struct { + Name string +} + +func (c *MyCat) String() string { + return fmt.Sprintf("Cat: %s", c.Name) +} + +func NewCat(name string) Cat { + log.Default().Printf("NewCat(%s)", name) + return &MyCat{Name: name} +} + +type Child interface { + String() string +} + +type MyChild struct { + Age int +} + +func NewChild(age int) (Child, error) { + log.Default().Printf("NewChild(%d)", age) + if age < 0 { + return nil, fmt.Errorf("wrong age") + } + + return &MyChild{Age: age}, nil +} + +func (c *MyChild) String() string { + return fmt.Sprintf("%d year old child", c.Age) +} + +type Adult interface { + String() string +} + +type MyAdult struct { + Name string + Childs []Child +} + +func NewAdult(name string, childs []Child) Adult { + log.Default().Printf("NewAdult(%s, %d childs)", name, len(childs)) + return &MyAdult{Name: name, Childs: childs} +} + +func (a *MyAdult) String() string { + var b strings.Builder + b.WriteString(a.Name) + if len(a.Childs) > 0 { + b.WriteString(" (with ") + for i, c := range a.Childs { + if i > 0 { + b.WriteString(", ") + } + b.WriteString(c.String()) + } + b.WriteString(")") + } + return b.String() +} + +type House interface { + Present(w io.Writer) +} + +type MyHouse struct { + Address string + Adults []Adult + Cats []Cat +} + +func (h *MyHouse) Present(w io.Writer) { + fmt.Fprintf(w, "House at: %s\n", h.Address) + fmt.Fprintln(w, "with:") + for _, a := range h.Adults { + fmt.Fprintf(w, "- %s\n", a) + } + fmt.Fprintln(w, "and:") + for _, c := range h.Cats { + fmt.Fprintf(w, "- %s\n", c) + } + fmt.Fprintln(w) +} + +func NewHouse(address string, adults []Adult, cats []Cat) House { + log.Default().Printf("NewHouse(%s, %d adults, %d cats)", address, len(adults), len(cats)) + return &MyHouse{ + Address: address, + Adults: adults, + Cats: cats, + } +} diff --git a/usual/main.go b/usual/main.go new file mode 100644 index 0000000..eed4771 --- /dev/null +++ b/usual/main.go @@ -0,0 +1,25 @@ +package main + +import ( + "os" + + lib "github.com/nmasse-itix/golang-fx" +) + +func main() { + gm := lib.NewCat("Gros Minet") + isidore := lib.NewCat("Isidore") + c1, err := lib.NewChild(2) + if err != nil { + panic(err) + } + c2, err := lib.NewChild(5) + if err != nil { + panic(err) + } + john := lib.NewAdult("John", []lib.Child{c1, c2}) + jane := lib.NewAdult("Jane", []lib.Child{c1, c2}) + house := lib.NewHouse("New-York", []lib.Adult{john, jane}, []lib.Cat{gm, isidore}) + + house.Present(os.Stdout) +}