Gradle generateGrammarSource 任务不工作

Question

我想使用 gradle generateGrammarSource 任务生成 antlr4 词法分析器。
g4 文件的路径是 src/main/antlr4/my/package/mygrammar.g4
我尝试使用我发现的一些示例，因此 build.gradle 具有以下代码：

buildscript {
    ext.kotlin_version = '1.3.20'

    repositories {
        mavenCentral()
    }
    dependencies {
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

group 'my.package'
version '1.0-SNAPSHOT'

apply plugin: 'kotlin'
apply plugin: 'antlr'

repositories {
    mavenCentral()
}

dependencies {
    compile "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
    compile group: 'org.antlr', name: 'antlr4', version: '4.7.2'
    testCompile "org.jetbrains.kotlin:kotlin-test-junit:$kotlin_version"
}

generateGrammarSource {
    arguments += ['-package', 'my.package']
}

compileKotlin {
    kotlinOptions.jvmTarget = "1.8"
}

compileTestKotlin {
    kotlinOptions.jvmTarget = "1.8"
}

执行 generateGrammarSource 任务不会产生任何结果并给出以下输出：

:generateGrammarSource NO-SOURCE

BUILD SUCCESSFUL in 0s

我该如何解决？

Answer 1

您需要创建目录 src/main/antlr 并添加 Kotlin grammar files into there. most likely the my/package/ is the reason why it cannot find the grammar files; while this answers hints for, to add generated sources to the source-set. see The ANTLR Plugin.

Gradle generateGrammarSource 任务不工作

Gradle generateGrammarSource task isn't working

gradle

antlr4