Question

我想在existant类型中添加一个函数，在我的例子中，这是NativeLibrarySpec。

我尝试使用gradle extensions并且它已经完成了工作但现在我想将其概括为能够使用它，就好像它是NativeLibrarySpec的DSL的标准功能一样。问题是我只能在配置后（包含我的函数的块）访问实例，因此它失败了，因为它试图在我能够链接它之前调用specialConfig ...

以下是代码（不关心此示例适用于本机软件C ++）：

// File: build.gradle
apply plugin: 'cpp'

class SpecialConfig {
    NativeComponentSpec componentSpec

    SpecialConfig(NativeComponentSpec componentSpec) {
        this.componentSpec = componentSpec
    }

    def something(boolean enabled) {
        componentSpec.sources {
            cpp {
                // Some important stuffs
            }
        }
    }
}

model {
    components {
        main(NativeLibrarySpec) {
            // How to bring this out ??
            project.extensions.create('specialConfig', SpecialConfig, it)

            // This is the new functionality I want to use
            specialConfig {
                something(true)
            }
        }
    }
}

这是另一个例子，但它只适用于项目。* https://dzone.com/articles/gradle-goodness-extending-dsl

Answer 1

请你试试吗

Movie

输出：

plugins {
    id 'cpp'
}

class SpecialConfig {
    // no need to pass this to the constructor we can just make it a
    // method arg instead
    SpecialConfig() {
    }

    // manipulate spec as desired
    def something(NativeComponentSpec spec, boolean enabled) {
        println "Hello something!"
        spec.sources {
            cpp {
                // Some important stuffs
            }
        }
    }
}

// add your extension earlier
project.extensions.create('specialConfig', SpecialConfig)
model {
    components {
        main(NativeLibrarySpec) { mySpec ->
            // we can call our extension via the project
            project.specialConfig { config ->
                // our closure is handed an instance of the class
                // on that we can call methods
                config.something(mySpec, true)
            }
            // or more simply we could make it a one liner
            project.specialConfig.something(mySpec, true)
        }
    }
}

Gradle：扩展现有类型

1 个答案: