将使用 JavaCC 的 Maven Java 项目移植到 Scala
Porting a Maven Java project that uses JavaCC to Scala
我正在尝试将使用 JavaCC 的基于 Maven 的 Java 项目移植到 Scala。
我很高兴至少暂时将 JavaCC 生成的 classes 留在 Java 中。
然而,生成的 JavaCC class 取决于正在转换的 classes。
该项目从原始的 Java 源构建得很好,但是如果我用 Scala 源替换它们,Maven 会首先尝试编译 JavaCC 生成的 class 但看不到以及新代码提供的符号。
然后问题似乎是如何让Maven先生成Java代码,然后将Scala代码和生成的代码一起编译,编译器可以找到所有依赖项。解决方案似乎是向 pom.xml 添加一些魔法咒语。那应该是什么?
我目前的pom.xml是:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>bobj</groupId>
<artifactId>bobj</artifactId>
<version>0.9</version>
<packaging>jar</packaging>
<name>BOBJ algebraic specification and verification system</name>
<url>http://github.com/fh-wedel/BOBJ</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<profiles>
<profile>
<id>scala-2.10</id>
<properties>
<scalaVersion>2.10.4</scalaVersion>
<scalaBinaryVersion>2.10</scalaBinaryVersion>
</properties>
<dependencies>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scalaVersion}</version>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-swing</artifactId>
<version>${scalaVersion}</version>
</dependency>
</dependencies>
</profile>
</profiles>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<mainClass>bobj.BOBJ</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>javacc-maven-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>javacc</id>
<goals>
<goal>javacc</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.1.6</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
<configuration>
<args>
<!-- work-around for https://issues.scala-lang.org/browse/SI-8358 -->
<arg>-nobootcp</arg>
</args>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.9.1</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/scala</source>
<source>src/main/javacc</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
这不是我写的。我从项目附带的 pom.xml 开始,并添加了 scala 和 build-helper-maven-plugin
的部分
我从其他来源复制的。我的 Maven-fu 很少,所以如果我做的事情被严重误导,我不会感到惊讶。
原来我忘了为 mixed scala java project
设置 scala-maven-plugin
声明
即 scala-maven-plugin
需要
<executions>
<execution>
<id>scala-process-resources</id>
<phase>process-resources</phase>
<goals>
<goal>add-source</goal>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>scala-process-test-resources</id>
<phase>process-test-resources</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
而不是通常的
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
我正在尝试将使用 JavaCC 的基于 Maven 的 Java 项目移植到 Scala。 我很高兴至少暂时将 JavaCC 生成的 classes 留在 Java 中。 然而,生成的 JavaCC class 取决于正在转换的 classes。
该项目从原始的 Java 源构建得很好,但是如果我用 Scala 源替换它们,Maven 会首先尝试编译 JavaCC 生成的 class 但看不到以及新代码提供的符号。
然后问题似乎是如何让Maven先生成Java代码,然后将Scala代码和生成的代码一起编译,编译器可以找到所有依赖项。解决方案似乎是向 pom.xml 添加一些魔法咒语。那应该是什么?
我目前的pom.xml是:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>bobj</groupId>
<artifactId>bobj</artifactId>
<version>0.9</version>
<packaging>jar</packaging>
<name>BOBJ algebraic specification and verification system</name>
<url>http://github.com/fh-wedel/BOBJ</url>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<profiles>
<profile>
<id>scala-2.10</id>
<properties>
<scalaVersion>2.10.4</scalaVersion>
<scalaBinaryVersion>2.10</scalaBinaryVersion>
</properties>
<dependencies>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-library</artifactId>
<version>${scalaVersion}</version>
</dependency>
<dependency>
<groupId>org.scala-lang</groupId>
<artifactId>scala-swing</artifactId>
<version>${scalaVersion}</version>
</dependency>
</dependencies>
</profile>
</profiles>
<build>
<sourceDirectory>src/main/java</sourceDirectory>
<plugins>
<plugin>
<artifactId>maven-jar-plugin</artifactId>
<version>2.4</version>
<configuration>
<archive>
<manifest>
<mainClass>bobj.BOBJ</mainClass>
</manifest>
</archive>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>javacc-maven-plugin</artifactId>
<version>2.6</version>
<executions>
<execution>
<id>javacc</id>
<goals>
<goal>javacc</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.6</source>
<target>1.6</target>
</configuration>
</plugin>
<plugin>
<groupId>net.alchim31.maven</groupId>
<artifactId>scala-maven-plugin</artifactId>
<version>3.1.6</version>
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
<configuration>
<args>
<!-- work-around for https://issues.scala-lang.org/browse/SI-8358 -->
<arg>-nobootcp</arg>
</args>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.9.1</version>
<executions>
<execution>
<id>add-source</id>
<phase>generate-sources</phase>
<goals>
<goal>add-source</goal>
</goals>
<configuration>
<sources>
<source>src/main/scala</source>
<source>src/main/javacc</source>
</sources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.8.2</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
这不是我写的。我从项目附带的 pom.xml 开始,并添加了 scala 和 build-helper-maven-plugin
的部分
我从其他来源复制的。我的 Maven-fu 很少,所以如果我做的事情被严重误导,我不会感到惊讶。
原来我忘了为 mixed scala java project
设置scala-maven-plugin
声明
即 scala-maven-plugin
需要
<executions>
<execution>
<id>scala-process-resources</id>
<phase>process-resources</phase>
<goals>
<goal>add-source</goal>
<goal>compile</goal>
</goals>
</execution>
<execution>
<id>scala-process-test-resources</id>
<phase>process-test-resources</phase>
<goals>
<goal>testCompile</goal>
</goals>
</execution>
</executions>
而不是通常的
<executions>
<execution>
<goals>
<goal>compile</goal>
<goal>testCompile</goal>
</goals>
</execution>
</executions>