GoPlantUML: 从Go代码到模型的逆向工程

2023-08-10 16:56:12 浏览数 (3)

GoPlantUML是一个用于Go项目的PlantUML类图生成器。它可以生成与PlantUML兼容的类图文本,其中包含所有结构和接口的信息以及它们之间的关系。

安装

要使用GoPlantUML,你需要先安装Go语言,版本需要1.17或以上1。然后,你可以使用以下命令安装GoPlantUML:

代码语言:javascript复制
go get github.com/jfeliu007/goplantuml/parser
go install github.com/jfeliu007/goplantuml/cmd/goplantuml@latest

用法

代码语言:javascript复制
goplantuml [-recursive] path/to/gofiles path/to/gofiles2
goplantuml [-recursive] path/to/gofiles path/to/gofiles2 > diagram_file_name.puml
Usage of goplantuml:
  -aggregate-private-members
        Show aggregations for private members. Ignored if -show-aggregations is not used.
  -hide-connections
        hides all connections in the diagram
  -hide-fields
        hides fields
  -hide-methods
        hides methods
  -ignore string
        comma separated list of folders to ignore
  -notes string
        Comma separated list of notes to be added to the diagram
  -output string
        output file path. If omitted, then this will default to standard output
  -recursive
        walk all directories recursively
  -show-aggregations
        renders public aggregations even when -hide-connections is used (do not render by default)
  -show-aliases
        Shows aliases even when -hide-connections is used
  -show-compositions
        Shows compositions even when -hide-connections is used
  -show-connection-labels
        Shows labels in the connections to identify the connections types (e.g. extends, implements, aggregates, alias of
  -show-implementations
        Shows implementations even when -hide-connections is used
  -show-options-as-note
        Show a note in the diagram with the none evident options ran with this CLI
  -title string
        Title of the generated diagram
  -hide-private-members
        Hides all private members (fields and methods)

例子

在goplantuml中考虑了两种不同的关系:

  • 接口实现
  • 类型组成

下面的示例包含接口实现和组合。注意函数的签名方式

代码语言:javascript复制
package testingsupport

//MyInterface only has one method, notice the signature return value
type MyInterface interface {
  foo() bool
}

//MyStruct1 will implement the foo() bool function so it will have an "extends" association with MyInterface
type MyStruct1 struct {
}

func (s1 *MyStruct1) foo() bool {
  return true
}

//MyStruct2 will be directly composed of MyStruct1 so it will have a composition relationship with it
type MyStruct2 struct {
  MyStruct1
}

//MyStruct3 will have a foo() function but the return value is not a bool, so it will not have any relationship with MyInterface
type MyStruct3 struct {
    Foo MyStruct1
}

func (s3 *MyStruct3) foo() {

}

这将从前面的代码生成

代码语言:javascript复制
@startuml
namespace testingsupport {
    interface MyInterface  {
        - foo() bool

    }
    class MyStruct1 << (S,Aquamarine) >> {
        - foo() bool

    }
    class MyStruct2 << (S,Aquamarine) >> {
    }
    class MyStruct3 << (S,Aquamarine) >> {
        - foo() 

          Foo MyStruct1

    }
}
testingsupport.MyStruct1 *-- testingsupport.MyStruct2

testingsupport.MyInterface <|-- testingsupport.MyStruct1

testingsupport.MyStruct3 o-- testingsupport.MyStruct1

@enduml

模型效果

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